NEKTAR THERAPEUTICS - FORM 8-K - EX-10.1 - EXHIBIT 10.1

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8-K - FORM 8-K - NEKTAR THERAPEUTICS	v318213_8k.htm
EX-10.3 - EXHIBIT 10.3 - NEKTAR THERAPEUTICS	v318213_ex10-3.htm
EX-10.2 - EXHIBIT 10.2 - NEKTAR THERAPEUTICS	v318213_ex10-2.htm

EXECUTION VERSION

NEKTAR THERAPEUTICS

12.00% SENIOR SECURED NOTES DUE 2017

INDENTURE

Dated as of July 11, 2012

Wells Fargo Bank, National Association

Trustee and Collateral Agent

CROSS-REFERENCE TABLE*

Trust Indenture Act Section	Indenture Section
310(a)(1)	7.10
(a)(2)	7.10
(a)(3)	N.A.
(a)(4)	N.A.
(a)(5)	7.10
(b)	7.10
(c)	N.A.
311(a)	7.11
(b)	7.11
(c)	N.A.
312(a)	2.05
(b)	12.03
(c)	12.03
313(a)	7.06
(b)(1)	10.03
(b)(2)	7.06; 7.07
(c)	7.06; 10.03;12.02
(d)	7.06
314(a)	4.03;12.02; 12.05
(b)	N.A.
(c)(1)	12.04
(c)(2)	12.04
(c)(3)	N.A.
(d)	N.A.
(e)	12.05
(f)	N.A.
315(a)	7.01
(b)	7.05; 12.02
(c)	7.01
(d)	7.01
(e)	6.11
316(a) (last sentence)	2.09
(a)(1)(A)	6.05
(a)(1)(B)	6.04
(a)(2)	N.A.
(b)	6.07
(c)	2.12
317(a)(1)	6.08
(a)(2)	6.09
(b)	2.04
318(a)	12.01
(b)	N.A.
(c)	12.01

N.A. means not applicable.

* This Cross Reference Table is not part of this Indenture.

TABLE OF CONTENTS

		Page

ARTICLE 1
DEFINITIONS AND INCORPORATION
BY REFERENCE

Section 1.01	Definitions.	1
Section 1.02	Other Definitions.	20
Section 1.03	Incorporation by Reference of Trust Indenture Act.	21
Section 1.04	Rules of Construction.	22

ARTICLE 2
THE NOTES

Section 2.01	Form and Dating.	22
Section 2.02	Execution and Authentication.	23
Section 2.03	Registrar and Paying Agent.	23
Section 2.04	Paying Agent to Hold Money in Trust.	23
Section 2.05	Holder Lists.	24
Section 2.06	Transfer and Exchange.	24
Section 2.07	Replacement Notes.	35
Section 2.08	Outstanding Notes.	35
Section 2.09	Treasury Notes.	35
Section 2.10	Temporary Notes.	36
Section 2.11	Cancellation.	36
Section 2.12	Defaulted Interest.	36

ARTICLE 3
REDEMPTION AND PREPAYMENT

Section 3.01	Notices to Trustee.	36
Section 3.02	Selection of Notes to Be Redeemed or Purchased.	37
Section 3.03	Notice of Redemption.	37
Section 3.04	Effect of Notice of Redemption.	38
Section 3.05	Deposit of Redemption or Purchase Price.	38
Section 3.06	Notes Redeemed or Purchased in Part.	38
Section 3.07	Optional Redemption.	38
Section 3.08	Mandatory Redemption.	39
Section 3.09	[Reserved]	39
Section 3.10	Offer to Purchase by Application of Excess Proceeds.	39

ARTICLE 4
COVENANTS

Section 4.01	Payment of Notes.	41
Section 4.02	Maintenance of Office or Agency.	41
Section 4.03	Reports.	42
Section 4.04	Compliance Certificate.	43
Section 4.05	Taxes.	43
Section 4.06	Stay, Extension and Usury Laws.	44
Section 4.07	Restricted Payments.	44
Section 4.08	Dividend and Other Payment Restrictions Affecting Subsidiaries.	46
Section 4.09	Incurrence of Indebtedness and Issuance of Preferred Stock.	48

		Page

Section 4.10	Asset Sales.	52
Section 4.11	Transactions with Affiliates.	53
Section 4.12	Liens.	55
Section 4.13	Business Activities.	55
Section 4.14	Corporate Existence.	55
Section 4.15	Offer to Repurchase Upon Change of Control.	55
Section 4.16	Royalty Transactions Repurchase Offer.	57
Section 4.17	Additional Note Guarantees.	59
Section 4.18	Designation of Royalty Transaction Subsidiaries.	59
Section 4.19	Maintenance of Property and Insurance.	60
Section 4.20	Real Estate Mortgages and Filings.	60
Section 4.21	Minimum Cash Balance.	61
Section 4.22	Cash Reserve Account.	61

ARTICLE 5
SUCCESSORS

Section 5.01	Merger, Consolidation, or Sale of Assets.	62
Section 5.02	Successor Corporation Substituted.	63

ARTICLE 6
DEFAULTS AND REMEDIES

Section 6.01	Events of Default.	63
Section 6.02	Acceleration.	65
Section 6.03	Other Remedies.	65
Section 6.04	Waiver of Past Defaults.	66
Section 6.05	Control by Majority.	66
Section 6.06	Limitation on Suits.	66
Section 6.07	Rights of Holders of Notes to Receive Payment.	67
Section 6.08	Collection Suit by Trustee.	67
Section 6.09	Trustee May File Proofs of Claim.	67
Section 6.10	Priorities.	67
Section 6.11	Undertaking for Costs.	68

ARTICLE 7
TRUSTEE

Section 7.01	Duties of Trustee.	68
Section 7.02	Rights of Trustee.	69
Section 7.03	Individual Rights of Trustee.	70
Section 7.04	Trustee’s Disclaimer.	70
Section 7.05	Notice of Defaults.	71
Section 7.06	Reports by Trustee to Holders of the Notes.	71
Section 7.07	Compensation and Indemnity.	71
Section 7.08	Replacement of Trustee.	72
Section 7.09	Successor Trustee by Merger, etc.	73
Section 7.10	Eligibility; Disqualification.	73
Section 7.11	Preferential Collection of Claims Against Company.	73
Section 7.12	Trustee as Paying Agent and Collateral Agent.	73

ARTICLE 8
LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01	Option to Effect Legal Defeasance or Covenant Defeasance.	73

		Page

Section 8.02	Legal Defeasance and Discharge.	73
Section 8.03	Covenant Defeasance.	74
Section 8.04	Conditions to Legal or Covenant Defeasance.	74
Section 8.05	Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions.	76
Section 8.06	Repayment to Company.	76
Section 8.07	Reinstatement.	76

ARTICLE 9
AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01	Without Consent of Holders of Notes.	77
Section 9.02	With Consent of Holders of Notes.	77
Section 9.03	Revocation and Effect of Consents.	79
Section 9.04	Notation on or Exchange of Notes.	79
Section 9.05	Trustee to Sign Amendments, etc.	79

ARTICLE 10
COLLATERAL AND SECURITY

Section 10.01	Grant of Security Interest; Collateral Documents.	79
Section 10.02	Recording and Opinions.	80
Section 10.03	Release of Collateral.	80
Section 10.04	[Reserved].	81
Section 10.05	[Reserved].	81
Section 10.06	Authorization of Actions to Be Taken by the Trustee Under the Collateral Documents.	81
Section 10.07	Authorization of Receipt of Funds by the Trustee Under the Collateral Documents.	81
Section 10.08	Termination of Security Interest.	81

ARTICLE 11
NOTE GUARANTEES

Section 11.01	Guarantee.	82
Section 11.02	Limitation on Guarantor Liability.	83
Section 11.03	Execution and Delivery of Note Guarantee.	83
Section 11.04	Guarantors May Consolidate, etc., on Certain Terms.	83
Section 11.05	Releases.	84

ARTICLE 12
satisfaction and discharge

Section 12.01	Satisfaction and Discharge.	84
Section 12.02	Application of Trust Money.	85

ARTICLE 13
MISCELLANEOUS

Section 13.01	Notice	86
Section 13.02	Communication by Holders of Notes with Other Holders of Notes.	86
Section 13.03	Certificate and Opinion as to Conditions Precedent.	87
Section 13.04	Statements Required in Certificate or Opinion.	87
Section 13.05	Rules by Trustee and Agents.	87
Section 13.06	Force Majeure	87
Section 13.07	No Personal Liability of Directors, Officers, Employees and Stockholders.	88
Section 13.08	Governing Law.	88

iii

		Page

Section 13.09	No Adverse Interpretation of Other Agreements.	88
Section 13.10	Successors.	88
Section 13.11	Severability.	88
Section 13.12	Counterpart Originals.	88
Section 13.13	Table of Contents, Headings, etc.	88
Section 13.14	U.S.A. Patriot Act.	89

EXHIBITS

Exhibit A	FORM OF NOTE
Exhibit B	FORM OF CERTIFICATE OF TRANSFER
Exhibit C	FORM OF CERTIFICATE OF EXCHANGE
Exhibit D	FORM OF CERTIFICATE OF ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR
Exhibit E	FORM OF SUPPLEMENTAL INDENTURE

INDENTURE dated as of July 11, 2012 between Nektar Therapeutics, a Delaware corporation, and Wells Fargo Bank, National Association, as trustee (together with its successors and assigns, in such capacity, the “Trustee”) and collateral agent (together with its successors and assigns, in such capacity, the “Collateral Agent”).

The Company and the Trustee agree as follows for the benefit of each other and for the equal and ratable benefit of the Holders (as defined) of the 12.00% Senior Secured Notes due 2017 (the “Notes”):

ARTICLE 1
DEFINITIONS AND INCORPORATION
BY REFERENCE

Section 1.01

Definitions.

“144A Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of, and registered in the name of, the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on Rule 144A.

“Acquired Debt” means, with respect to any specified Person:

(1)

Indebtedness of any other Person existing at the time such other Person is merged with or into or became a Restricted Subsidiary of such specified Person, whether or not such Indebtedness is incurred in connection with, or in contemplation of, such other Person merging with or into, or becoming a Restricted Subsidiary of, such specified Person; and

(2)

Indebtedness secured by a Lien encumbering any asset acquired by such specified Person.

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or indirect common control with such specified Person. For purposes of this definition, “control,” as used with respect to any Person, means the possession, directly or indirectly, of the power to direct or cause the direction of the management or policies of such Person, whether through the ownership of voting securities, by agreement or otherwise; provided that beneficial ownership of 10% or more of the Voting Stock of a Person will be deemed to be control solely for purposes of Section 4.11 For purposes of this definition, the terms “controlling,” “controlled by” and “under common control with” have correlative meanings.

“Agent” means any Registrar, co-registrar, Paying Agent or additional paying agent.

“Applicable Net Royalty Proceeds” means the first $25.0 million of aggregate Net Proceeds of Royalty Transactions actually used by the Company to complete repurchases.

“Applicable Premium” means, with respect to any Note on any redemption date, the greater of:

(1)

1.0% of the principal amount of the Note; or

(2)

the excess, if any, of:

(a)

the present value at such redemption date of (i) the redemption price of the Note at July 15, 2015 (which shall be 109% of the principal amount of the Notes) plus (ii) all required interest payments due on the Note through July 15, 2015 (excluding accrued but unpaid interest to the redemption date), computed using a discount rate equal to the Treasury Rate as of such redemption date plus 50 basis points; over

(b)

the principal amount of the Note.

“Applicable Procedures” means, with respect to any transfer or exchange of or for beneficial interests in any Global Note, the rules and procedures of the Depositary, Euroclear and Clearstream that apply to such transfer or exchange.

“Applicable Transaction” means (1) any incurrence of Indebtedness as part of a Collaboration Transaction or Royalty Transaction in connection with which cash proceeds are generated and (2) the receipt of any cash payments by the Company or any Restricted Subsidiary of the Company as part of a Collaboration Transaction other than (x) net royalty payments, (y) payments for bona fide services provided by the Company or any Restricted Subsidiary and (z) payments for manufacturing and supply activities and (3) any incurrence of Permitted Convertible Notes, in each case, arising from transactions occurring after the date of this Indenture but excluding amendments, restatements, modifications, renewals, supplements or replacements of agreements entered into prior to the date of this Indenture.

“Asset Sale” means:

(1)

the sale, lease, conveyance or other disposition of any assets or property; provided that the sale, lease, conveyance or other disposition of all or substantially all of the assets of the Company and its Restricted Subsidiaries taken as a whole will be governed by Section 4.15 and/or Section 5.01 and not by the provisions of Section 4.10; and

(2)

the issuance of Equity Interests in any of the Company’s Restricted Subsidiaries or the sale of Equity Interests in any of its Restricted Subsidiaries.

Notwithstanding the preceding, none of the following items will be deemed to be an Asset Sale:

(1)

any single transaction or series of related transactions that involves assets having a Fair Market Value of less than $1.0 million;

(2)

a transfer of assets between or among the Company and the Guarantors;

(3)

an issuance of Equity Interests by a Restricted Subsidiary of the Company to the Company or to a Restricted Subsidiary of the Company;

(4)

the sale or lease of products, services or accounts receivable in the ordinary course of business, any sale or other disposition of damaged, worn-out or obsolete assets in the ordinary course of business and the abandonment or other disposition of intellectual property that in the Company’s good faith judgment are not useful in a Permitted Business or otherwise of any material value;

(5)

the sale or other disposition of cash or Cash Equivalents;

(6)

a Restricted Payment that does not violate Section 4.07 or a Permitted Investment;

(7)

the licensing or sublicensing of patents, trademarks, know-how or other intellectual property or general intangibles related thereto in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Company or any of its Restricted Subsidiaries (provided that any exclusive license of patents that effectively constitutes a transfer of the related patent shall be deemed to be an Asset Sale);

(8)

the lease, assignment or sublease of any real or personal property in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Company or any of its Restricted Subsidiaries;

(9)

the sale of any property in a Sale/Leaseback Transaction within six months of the acquisition of such property;

(10)

the sale or other disposition of the Equity Interests of any Royalty Transaction Subsidiary pursuant to the foreclosure of a pledge of such Equity Interests in connection with the related Royalty Transaction; and

(11)

any Collaboration Transaction, to the extent involving any sale, lease, conveyance or other disposition of property or assets.

“Bankruptcy Law” means Title 11, U.S. Code or any similar federal or state law for the relief of debtors.

“Beneficial Owner” has the meaning assigned to such term in Rule 13d-3 and Rule 13d-5 under the Exchange Act, except that in calculating the beneficial ownership of any particular “person” (as that term is used in Section 13(d)(3) of the Exchange Act), such “person” will be deemed to have beneficial ownership of all securities that such “person” has the right to acquire by conversion or exercise of other securities, whether such right is currently exercisable or is exercisable only after the passage of time. The terms “Beneficially Owns” and “Beneficially Owned” have a corresponding meaning.

“Board of Directors” means:

(1)

with respect to a corporation, the board of directors of the corporation or any committee thereof duly authorized to act on behalf of such board;

(2)

with respect to a partnership, the Board of Directors of the general partner of the partnership;

(3)

with respect to a limited liability company, the managing member or members or any controlling committee of managing members thereof; and

(4)

with respect to any other Person, the board or committee of such Person serving a similar function.

“Business Day” means any day other than a Legal Holiday.

“Capital Lease Obligation” means, at the time any determination is to be made, the amount of the liability in respect of a capital lease that would at that time be required to be capitalized on a balance sheet prepared in accordance with GAAP, and the Stated Maturity thereof shall be the date of the last payment of rent or any other amount due under such lease prior to the first date upon which such lease may be prepaid by the lessee without payment of a penalty.

“Capital Stock” means:

(1)

in the case of a corporation, corporate stock;

(2)

in the case of an association or business entity, any and all shares, interests, participations, rights or other equivalents (however designated) of corporate stock;

(3)

in the case of a partnership or limited liability company, partnership interests (whether general or limited) or membership interests; and

(4)

any other interest or participation in a Person that confers on a Person the right to receive a share of the profits and losses of, or distributions of assets of, the issuing Person, but excluding from all of the foregoing any debt securities convertible into Capital Stock, whether or not such debt securities include any right of participation with Capital Stock.

“Cash Equivalents” means:

(1)

United States dollars;

(2)

securities issued or directly and fully guaranteed or insured by the United States government or any agency or instrumentality of the United States government (provided that the full faith and credit of the United States is pledged in support of those securities) having maturities of not more than one year from the date of acquisition;

(3)

certificates of deposit and eurodollar time deposits with maturities of two years or less from the date of acquisition, bankers’ acceptances with maturities not exceeding two years and overnight bank deposits, in each case, with any domestic commercial bank having capital and surplus in excess of $500.0 million and a Thomson Bank Watch Rating of “B” or better;

(4)

repurchase obligations with a term of not more than seven days for underlying securities of the types described in clauses (2) and (3) above entered into with any financial institution meeting the qualifications specified in clause (3) above;

(5)

commercial paper having one of the two highest ratings obtainable from Moody’s or S&P and, in each case, maturing within two years after the date of acquisition;

(6)

readily marketable direct obligations issued by any state of the United States of America or any political subdivision thereof having one of the two highest rating categories obtainable from either Moody’s or S&P (or reasonably equivalent ratings of another internationally recognized ratings agency) in each case with maturities not exceeding two years from the date of acquisition;

(7)

Indebtedness issued by Persons (other than the Company or any of its Affiliates) with a rating of “A” or higher from S&P or “A-2” or higher from Moody’s in each case with maturities not exceeding two years from the date of acquisition; and

(8)

investment funds at least 95% of the assets of which constitute Cash Equivalents of the kinds described in clauses (1) through (7) of this definition.

“Change of Control” means the occurrence of any of the following:

(1)

the direct or indirect sale, lease, transfer, conveyance or other disposition (other than (x) by way of merger or consolidation or (y) pursuant to a Royalty Transaction), in one or a series of related transactions, of (i) all or substantially all of the properties or assets of the Company and its Subsidiaries taken as a whole to any Person other than the Company or a Guarantor; or (ii) assets of the Company or any Subsidiary of the Company to a Person other than the Company or a Guarantor for a purchase price equal to more than 50% of the consolidated total assets of the Company (based upon the Company’s most recent audited balance sheet);

(2)

the adoption of a plan relating to, or the occurrence of, the liquidation, dissolution or winding up of the Company;

(3)

the consummation of any transaction (including, without limitation, any merger or consolidation), the result of which is that any “person” or “group” (each as defined above) becomes the Beneficial Owner, directly or indirectly, of more than 50% of the Voting Stock of the Company, measured by voting power rather than number of shares;

(4)

the Company consolidates with, or merges with or into, any Person, or any Person consolidates with, or merges with or into, the Company, or the Company consummates an exchange of shares, recapitalization, reorganization, business combination or other similar event, in any such event pursuant to a transaction following which the holders of Voting Stock immediately preceding such consolidation, merger, exchange, recapitalization, reorganization, business combination or similar event either (a) no longer hold a majority of the Voting Stock of the Company or (b) no longer have the ability elect a majority of the board of directors of the Company; or

(5)

the first day on which a majority of the members of the Board of Directors of the Company are not Continuing Directors.

“Clearstream” means Clearstream Banking, S.A.

“Collaboration Transaction” means any transaction pursuant to which the Company or any Restricted Subsidiary (a) provides a license or sublicense of its intellectual property, or transfers, contributes or assigns intellectual property owned or controlled by the Company or any Restricted Subsidiary and/or provides a right of reference regulatory filings and applications with governmental health authorities, and/or provides rights with respect to pre-clinical and clinical data, in each case to one or more third parties in connection with the (b) research, clinical development, regulatory activities, manufacturing, commercialization and/or marketing of one or more of the Company’s or any Restricted Subsidiary’s drugs or drug candidates, or similar agreements or arrangements.

“Collateral” has the meaning assigned to it in the Collateral Documents.

“Collateral Agent” shall have the meaning set forth in the preamble.

“Collateral Documents” means the security agreements, pledge agreements, escrow agreement, Mortgages, collateral assignments, control agreements and related agreements (including, without limitation, financing statements under the Uniform Commercial Code of the relevant states), each as amended, supplemented, restated, renewed, replaced or otherwise modified from time to time, to secure any Obligations under the Indenture Documents or under which rights or remedies with respect to any such Lien are governed.

“Company” means Nektar Therapeutics, and any and all successors thereto.

“Consolidated Cash Flow” means, with respect to any specified Person for any period, the Consolidated Net Income of such Person for such period, adjusted as follows (without duplication):

(1)

plus provision for taxes based on income, profits or capital, including state, franchise and similar taxes, of such Person and its Restricted Subsidiaries for such period, to the extent that such provision for taxes was taken into account in computing such Consolidated Net Income;

(2)

plus the Fixed Charges of such Person and its Restricted Subsidiaries for such period, to the extent that such Fixed Charges were deducted in computing such Consolidated Net Income;

(3)

plus depreciation, amortization (including amortization of intangibles but excluding amortization of prepaid cash expenses that were paid in a prior period) and other non-cash expenses (excluding any such non-cash expense to the extent that it represents an accrual of or reserve for cash expenses in any future period or amortization of a prepaid cash expense that was paid in a prior period) of such Person and its Restricted Subsidiaries for such period to the extent that such depreciation, amortization and other non-cash expenses were deducted in computing such Consolidated Net Income;

(4)

minus non-cash items increasing such Consolidated Net Income for such period, other than the recognition of deferred revenue, the accrual of revenue in the ordinary course of business and any items which represent the reversal of any accrual of, or cash reserve for, anticipated cash charges in any prior period and any items for which cash was received in a prior period;

in each case, on a consolidated basis and determined in accordance with GAAP.

“Consolidated Net Income” means, with respect to any specified Person for any period, the aggregate of the Net Income of such Person and its Restricted Subsidiaries for such period, on a consolidated basis, determined in accordance with GAAP; provided that:

(1)

any extraordinary, nonrecurring or unusual gains or losses or income, expenses or charges, including, without limitation, any severance expenses, any fees, expenses or charges related to any equity offering, Permitted Investment, acquisition or Indebtedness permitted to be incurred by this Indenture (in each case, whether or not successful), in each case, shall be excluded;

(2)

the Net Income (but not loss) of any Person that is not a Subsidiary or that is accounted for by the equity method of accounting will be included only to the extent of the amount of dividends or similar distributions paid in cash (or to the extent converted into cash) to the specified Person or a Restricted Subsidiary of the Person;

(3)

solely for the purpose of determining the amount available for Restricted Payments under clause (iii)(a) of Section 4.07(a), the Net Income of any Restricted Subsidiary (other than a Note Guarantor) will be excluded to the extent that the declaration or payment of dividends or similar distributions by that Restricted Subsidiary of that Net Income is not at the date of determination permitted without any prior governmental approval (that has not been obtained) or, directly or indirectly, by operation of the terms of its charter or any agreement, instrument, judgment, decree, order, statute, rule or governmental regulation applicable to that Restricted Subsidiary or its stockholders unless any applicable restrictions have been legally waived;

(4)

the cumulative effect of a change in accounting principles will be excluded;

(5)

the Net Income of any Royalty Transaction Subsidiary will be included solely to the extent distributed to the specified Person or one of its Subsidiaries;

(6)

any increase in amortization or depreciation or any one-time non-cash charges or reductions in Net Income, in each case resulting from purchase accounting in connection with any acquisition that is consummated after the date of this Indenture shall be excluded;

(7)

any impairment charges or asset write-offs and amortization of intangibles in each case arising pursuant to the application of GAAP shall be excluded;

(8)

any non-cash expense realized or resulting from employee benefit plans or post-employment benefit plans, grants of stock appreciation or similar rights, stock options or other rights to officers, directors and employees of such Person or any of its Restricted Subsidiaries, any severance or relocation costs or expenses, one-time non-cash compensation charges, in each case of such Person or any of its Restricted Subsidiaries, shall be excluded;

(9)

any currency translation gains and losses related to currency remeasurements of indebtedness, and any net loss or gain resulting from hedging transactions for currency exchange risk, shall be excluded;

(10)

non-cash charges for deferred tax asset valuation allowances shall be excluded; and

(11)

to the extent covered by insurance and actually reimbursed, or, so long as such Person has made a determination that there exists reasonable evidence that such amount will in fact be reimbursed by the insurer and only to the extent that such amount is (a) not denied by the applicable carrier in writing within 180 days and (b) in fact reimbursed within 365 days of the date of such evidence (with a deduction for any amount so added back to the extent not so reimbursed within 365 days), expenses with respect to casualty events or business interruption, net of any reimbursement to the extent already taken into account in computing Consolidated Net Income, shall be excluded.

“Continuing Directors” means, as of any date of determination, any member of the Board of Directors of the Company who:

(1)

was a member of such Board of Directors on the date of this Indenture; or

(2)

was nominated for election or elected to such Board of Directors with the approval of a majority of the Continuing Directors who were members of such Board of Directors at the time of such nomination or election.

“Corporate Trust Office of the Trustee” will be at the address of the Trustee specified in Section 13.01 hereof or such other address as to which the Trustee may give notice to the Company.

“Custodian” means the Trustee, as custodian with respect to the Notes in global form, or any successor entity thereto.

“Default” means any event that is, or with the passage of time or the giving of notice or both would be, an Event of Default.

“Definitive Note” means a certificated Note registered in the name of the Holder thereof and issued in accordance with Section 2.06 hereof, substantially in the form of Exhibit A hereto except that such Note shall not bear the Global Note Legend and shall not have the “Schedule of Exchanges of Interests in the Global Note” attached thereto.

“Depositary” means, with respect to the Notes issuable or issued in whole or in part in global form, the Person specified in Section 2.03 hereof as the Depositary with respect to the Notes, and any and all successors thereto appointed as depositary hereunder and having become such pursuant to the applicable provision of this Indenture.

“Designated Preferred Stock” means Preferred Stock of the Company (other than Disqualified Stock), that is issued for cash (other than to the Company or any of its Subsidiaries or an employee stock ownership plan or trust established by the Company or any of its Subsidiaries) and is so designated as Designated Preferred Stock, pursuant to an Officer’s Certificate, on the issuance date thereof.

“Disqualified Stock” means any Capital Stock that, by its terms (or by the terms of any security into which it is convertible, or for which it is exchangeable, in each case, at the option of the holder of the Capital Stock), or upon the happening of any event, matures or is mandatorily redeemable, pursuant to a sinking fund obligation or otherwise, or redeemable at the option of the holder of the Capital Stock, in whole or in part, on or prior to the date that is 91 days after the date on which the Notes mature. Notwithstanding the preceding sentence, any Capital Stock that would constitute Disqualified Stock solely because the holders of the Capital Stock have the right to require the Company to repurchase such Capital Stock upon the occurrence of a change of control or an asset sale will not constitute Disqualified Stock if the terms of such Capital Stock provide that the Company may not repurchase or redeem any such Capital Stock pursuant to such provisions unless such repurchase or redemption complies with Section 4.07. The amount of Disqualified Stock deemed to be outstanding at any time for purposes of this Indenture will be the maximum amount that the Company and its Restricted Subsidiaries may become obligated to pay upon the maturity of, or pursuant to any mandatory redemption provisions of, such Disqualified Stock, exclusive of accrued dividends.

“Domestic Restricted Subsidiary” means any Restricted Subsidiary of the Company that was formed under the laws of the United States or any state of the United States or the District of Columbia or that guarantees or otherwise provides direct credit support for any Indebtedness of the Company.

“Equity Interests” means Capital Stock and all warrants, options or other rights to acquire Capital Stock (but excluding any debt security that is convertible into, or exchangeable for, Capital Stock).

“Euroclear” means Euroclear Bank, S.A./N.V., as operator of the Euroclear system.

“Exchange Act” means the Securities Exchange Act of 1934, as amended.

“Existing Indebtedness” means Indebtedness of the Company and its Subsidiaries in existence on the date of this Indenture, until such amounts are repaid.

“Existing Subordinated Notes” means the 3.25% Convertible Subordinated Notes due 2012 of the Company issued under the Existing Subordinated Notes Indenture.

“Existing Subordinated Notes Indenture” means the Indenture, dated as of September 28, 2005, between the Company and J.P. Morgan Trust Company, National Association, as trustee.

“Fair Market Value” means the value that would be paid by a willing buyer to an unaffiliated willing seller in a transaction not involving distress or necessity of either party, as determined in good faith by the Company (and in the case of determinations of Fair Market Value in excess of $5.0 million, by the Board of Directors of the Company).

“Fixed Charge Coverage Ratio” means with respect to any specified Person for any period, the ratio of the Consolidated Cash Flow of such Person for such period to the Fixed Charges of such Person for such period. In the event that the specified Person or any of its Restricted Subsidiaries incurs, assumes, guarantees, repays, repurchases, redeems, defeases or otherwise discharges any Indebtedness (other than ordinary working capital borrowings) or issues, repurchases or redeems preferred stock subsequent to the commencement of the period for which the Fixed Charge Coverage Ratio is being calculated and on or prior to the date on which the event for which the calculation of the Fixed Charge Coverage Ratio is made (the “Calculation Date”), then the Fixed Charge Coverage Ratio will be calculated giving pro forma effect to such incurrence, assumption, Guarantee, repayment, repurchase, redemption, defeasance or other discharge of Indebtedness, or such issuance, repurchase or redemption of preferred stock, and the use of the proceeds therefrom, as if the same had occurred at the beginning of the applicable four-quarter reference period.

For purposes of making the computation referred to above, Investments, acquisitions, dispositions, mergers, consolidations and discontinued operations (as determined in accordance with GAAP), in each case with respect to an operating unit of a business, during the four-quarter reference period or subsequent to such reference period and on or prior to or simultaneously with the Calculation Date (each, for purposes of this definition, a “pro forma event”) shall be calculated on a pro forma basis assuming that all such Investments, acquisitions, dispositions, mergers, consolidations and discontinued operations (and the change of any associated fixed charge obligations and the change in Consolidated Cash Flow resulting therefrom) had occurred on the first day of the four-quarter reference period. If since the beginning of such period any Person that subsequently became a Restricted Subsidiary or was merged with or into the Company or any Restricted Subsidiary since the beginning of such period shall have made any Investment, acquisition, disposition, merger, consolidation or discontinued operation, in each case with respect to an operating unit of a business, that would have required adjustment pursuant to this definition, then the Fixed Charge Coverage Ratio shall be calculated giving pro forma effect thereto for such period as if such Investment, acquisition, disposition, discontinued operation, merger or consolidation had occurred at the beginning of the applicable four-quarter period.

For purposes of this definition, whenever pro forma effect is to be given to any pro forma event, the pro forma calculations shall be made in good faith by a responsible financial or accounting officer of the Company. Any such pro forma calculation may include adjustments appropriate, in the reasonable good faith determination of the Company as set forth in an Officer’s Certificate, to reflect operating expense reductions and other operating improvements or synergies reasonably expected to result within twelve months following the applicable pro forma event.

If any Indebtedness bears a floating rate of interest and is being given pro forma effect, the interest on such Indebtedness shall be calculated as if the rate in effect on the Calculation Date had been the applicable rate for the entire period (taking into account any Hedging Obligations applicable to such Indebtedness if such Hedging Obligation has a remaining term in excess of twelve months). Interest on a Capitalized Lease Obligation shall be deemed to accrue at an interest rate reasonably determined by a responsible financial or accounting officer of the Company to be the rate of interest implicit in such Capitalized Lease Obligation in accordance with GAAP. For purposes of making the computation referred to above, interest on any Indebtedness under a revolving credit facility computed on a pro forma basis shall be computed based upon the average daily balance of such Indebtedness during the applicable period. Interest on Indebtedness that may optionally be determined at an interest rate based upon a factor of a prime or similar rate, a eurocurrency interbank offered rate, or other rate, shall be deemed to have been based upon the rate actually chosen, or, if none, then based upon such optional rate chosen as the Company may designate.

“Fixed Charges” means, with respect to any specified Person for any period, the sum, without duplication, of:

(1)

the consolidated interest expense of such Person and its Restricted Subsidiaries for such period, whether paid or accrued, including, without limitation, amortization of original issue discount, non-cash interest payments, the interest component of all payments associated with Capital Lease Obligations, excluding the amortization of deferred financing fees and expensing of any bridge or other financing fees, and net of the effect of all payments made or received pursuant to Hedging Obligations in respect of interest rates;

(2)

plus the consolidated interest expense of such Person and its Restricted Subsidiaries that was capitalized during such period;

(3)

plus all cash dividends (excluding items eliminated in consolidation) on any series of preferred stock of such Person or any of its Restricted Subsidiaries,

(4)

minus interest income for such period,

in each case, determined on a consolidated basis in accordance with GAAP; provided that non-cash interest expense in respect of long-term liabilities incurred in connection with Royalty Transactions that do not constitute Indebtedness for borrowed money shall not be included in Fixed Charges.

“Foreign Subsidiary” means a Subsidiary that is organized under the laws of a jurisdiction other than the United States, any state thereof or the District of Columbia and does not guarantee or otherwise provide direct credit support for any Indebtedness of the Company.

“GAAP” means generally accepted accounting principles set forth in the opinions and pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants and statements and pronouncements of the Financial Accounting Standards Board or in such other statements by such other entity as have been approved by a significant segment of the accounting profession, which are in effect on the date of this Indenture.

“Global Note Legend” means the legend set forth in Section 2.06(f)(2) hereof, which is required to be placed on all Global Notes issued under this Indenture.

“Global Notes” means, individually and collectively, each of the Restricted Global Notes and the Unrestricted Global Notes deposited with or on behalf of and registered in the name of the Depository or its nominee, substantially in the form of Exhibit A hereto and that bears the Global Note Legend and that has the “Schedule of Exchanges of Interests in the Global Note” attached thereto, issued in accordance with Section 2.01, 2.06(b)(3), 2.06(b)(4) or 2.06(d)(2) hereof.

“Government Securities” means securities that are: (1) direct obligations of the United States of America for the timely payment of which its full faith and credit is pledged, or (2) obligations of a Person controlled or supervised by and acting as an agency or instrumentality of the United States of America, the timely payment of which is unconditionally guaranteed as a full faith and credit obligation by the United States of America, which, in each case, are not callable or redeemable at the option of the issuer thereof, and shall also include a depository receipt issued by a bank (as defined in Section 3(a)(2) of the Securities Act) as custodian with respect to any such Government Securities or a specific payment of principal of or interest on any such Government Securities held by such custodian for the account of the holder of such depository receipt; provided that (except as required by law) such custodian is not authorized to make any deduction from the amount payable to the holder of such depository receipt from any amount received by the custodian in respect of the Government Securities or the specific payment of principal of or interest on the Government Securities evidenced by such depository receipt.

“Guarantee” means a guarantee other than by endorsement of negotiable instruments for collection in the ordinary course of business, direct or indirect, in any manner including, without limitation, by way of a pledge of assets or through letters of credit or reimbursement agreements in respect thereof, of all or any part of any Indebtedness (whether arising by virtue of partnership arrangements, or by agreements to keep-well, to purchase assets, goods, securities or services, to take or pay or to maintain financial statement conditions or otherwise).

“Guarantor” means any Subsidiary of the Company that executes a Note Guarantee in accordance with the provisions of this Indenture and its successors and assigns, in each case, until the Note Guarantee of such Person has been released in accordance with the provisions of this Indenture.

“Hedging Obligations” means, with respect to any specified Person, the obligations of such Person under:

(1)

interest rate swap agreements (whether from fixed to floating or from floating to fixed), interest rate cap agreements and interest rate collar agreements;

(2)

other agreements or arrangements designed to manage interest rates or interest rate risk; and

(3)

other agreements or arrangements designed to protect such Person against fluctuations in currency exchange rates or commodity prices.

“Holder” means a Person in whose name a Note is registered on the books of the Registrar.

“IAI Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee that will be issued in a denomination equal to the outstanding principal amount of the Notes sold to Institutional Accredited Investors.

“Indebtedness” means, with respect to any specified Person, any indebtedness of such Person (excluding accrued expenses, deferred or prepaid revenue, trade payables and Guarantees incurred in the ordinary course of business and not in respect of borrowed money), whether or not contingent:

(1)

in respect of borrowed money;

(2)

evidenced by bonds, notes, debentures or similar instruments;

(3)

all Obligations for the reimbursement of any obligor on any letter of credit, banker’s acceptance or similar credit transaction;

(4)

representing Capital Lease Obligations;

(5)

representing the balance deferred and unpaid of the purchase price of any property or services due more than six months after such property is acquired or such services are completed; or

(6)

representing any Hedging Obligations,

if and to the extent any of the preceding items (other than letters of credit and Hedging Obligations) would appear as a liability upon a balance sheet of the specified Person prepared in accordance with GAAP. In addition, the term “Indebtedness” includes all Indebtedness of others secured by a Lien on any asset of the specified Person (whether or not such Indebtedness is assumed by the specified Person) and, to the extent not otherwise included, the Guarantee by the specified Person of any Indebtedness of any other Person (other than by endorsement of negotiable instruments for collection in the ordinary course of business).

“Indenture” means this Indenture, as amended or supplemented from time to time.

“Indenture Documents” means this Indenture, the Notes, the Note Guarantees and the Collateral Documents.

“Indirect Participant” means a Person who holds a beneficial interest in a Global Note through a Participant.

“Investments” means, with respect to any Person, all direct or indirect investments by such Person in other Persons (including Affiliates) in the forms of loans (including Guarantees or other obligations), advances or capital contributions (excluding commission, travel and similar advances to officers and employees made in the ordinary course of business), purchases or other acquisitions for consideration of Indebtedness, Equity Interests or other securities, together with all items that are or would be classified as investments on a balance sheet prepared in accordance with GAAP. If the Company or any Subsidiary of the Company sells or otherwise disposes of any Equity Interests of any direct or indirect Subsidiary of the Company such that, after giving effect to any such sale or disposition, such Person is no longer a Subsidiary of the Company, the Company will be deemed to have made an Investment on the date of any such sale or disposition equal to the Fair Market Value of the Company’s Investments in such Subsidiary that were not sold or disposed of in an amount determined as provided in Section 4.07. The acquisition by the Company or any Subsidiary of the Company of a Person that holds an Investment in a third Person will be deemed to be an Investment by the Company or such Subsidiary in such third Person in an amount equal to the Fair Market Value of the Investments held by the acquired Person in such third Person in an amount determined as provided in Section 4.07 Except as otherwise provided in this Indenture, the amount of an Investment will be determined at the time the Investment is made and without giving effect to subsequent changes in value. Any payments (including payments under the existing intercompany agreement between the Company and Nektar Therapeutics (India) Private Limited) made to a foreign Restricted Subsidiary of the Company by the Company or a domestic Restricted Subsidiary of the Company to the extent reflected as operating expenses of the Company or such domestic Restricted Subsidiary in the financial statements of the Company shall be deemed to not constitute an Investment in such foreign Restricted Subsidiary.

“Institutional Accredited Investor” means an institution that is an “accredited investor” as defined in Rule 501(a)(1), (2), (3) or (7) under the Securities Act, who are not also QIBs.

“Legal Holiday” means a Saturday, a Sunday or a day on which banking institutions in the City of New York or at a place of payment are authorized by law, regulation or executive order to remain closed. If a payment date is a Legal Holiday at a place of payment, payment may be made at that place on the next succeeding day that is not a Legal Holiday, and no interest shall accrue on such payment for the intervening period.

“Lien” means, with respect to any asset, any mortgage, lien, pledge, charge, security interest or encumbrance of any kind in respect of such asset, whether or not filed, recorded or otherwise perfected under applicable law, including any conditional sale or other title retention agreement, any lease in the nature thereof, any option or other agreement to sell or give a security interest in and any filing of or agreement to give any financing statement under the Uniform Commercial Code (or equivalent statutes) of any jurisdiction.

“Material Adverse Effect” means a material adverse effect on the financial condition, operations, assets, or business of the Company and its Subsidiaries, taken as a whole.

“Moody’s” means Moody’s Investors Service, Inc.

“Mortgages” means a collective reference to each mortgage, deed of trust, deed to secure debt and any other document or instrument under which any Lien on the Premises or any other Collateral secured by and described in such mortgages, deeds of trust, deeds to secure debt or other documents or instruments is granted to secure any Obligations of the Company or a Guarantor under any of the Indenture Documents or under which rights or remedies with respect to any such Liens are governed.

“Net Income” means, with respect to any specified Person, the net income (loss) of such Person, determined in accordance with GAAP and before any reduction in respect of preferred stock dividends, excluding, however, any gain (or loss), together with any related provision for taxes on such gain (or loss), realized in connection with: (a) any Asset Sale; or (b) the disposition of any securities by such Person or any of its Restricted Subsidiaries or the extinguishment of any Indebtedness of such Person or any of its Restricted Subsidiaries.

“Net Proceeds” means the aggregate cash proceeds received by the Company or any of its Restricted Subsidiaries in respect of any Asset Sale, Royalty Transaction or Applicable Transaction (including, without limitation, any cash received upon the sale or other disposition of any non-cash consideration received in any Asset Sale, Royalty Transaction or Applicable Transaction, but only as and when received), net of the direct costs relating to such Asset Sale, Royalty Transaction or Applicable Transaction, including, without limitation, legal, accounting and investment banking fees, and sales or brokerage commissions, and any relocation expenses incurred as a result of the Asset Sale, Royalty Transaction or Applicable Transaction, taxes paid or payable as a result of the Asset Sale, Royalty Transaction or Applicable Transaction, in each case, after taking into account any available tax credits or deductions and any tax sharing arrangements, and amounts (including premiums and fees) required to be applied to the repayment of Indebtedness required to be repaid as a result of such Asset Sale, Royalty Transaction or Applicable Transaction and any reserve for adjustment in respect of the sale price of such asset or assets, or any retained liabilities or indemnities with respect to such Asset Sale, Royalty Transaction or Applicable Transaction, established in accordance with GAAP. provided, however, that the amount of Net Proceeds received with respect to an issuance of Permitted Convertible Notes shall be deemed to be 35% of the amount that would otherwise be determined pursuant to the foregoing definition.

“Non-Recourse Debt” means Indebtedness:

(1)

as to which neither the Company nor any of its Restricted Subsidiaries (a) provides credit support of any kind (other than undertakings, including in respect of ‘make-whole interest,’ that are customary in Royalty Transactions), (b) is directly or indirectly liable as a guarantor or otherwise, or (c) constitutes the lender;

(2)

no default with respect to which (including any rights that the holders of the Indebtedness may have to take enforcement action against a Royalty Transaction Subsidiary) would permit upon notice, lapse of time or both any holder of any other Indebtedness of the Company or any of its Restricted Subsidiaries to declare a default on such other Indebtedness or cause the payment of the Indebtedness to be accelerated or payable prior to its Stated Maturity; and

(3)

as to which the lenders have been notified in writing that they will not have any recourse to the stock or assets of the Company or any of its Restricted Subsidiaries.

“Non-U.S. Person” means a Person who is not a U.S. Person.

“Note Guarantee” means the Guarantee by each Guarantor of the Company’s obligations under this Indenture and the Notes, executed pursuant to the provisions of this Indenture.

“Notes” has the meaning assigned to it in the preamble to this Indenture.

“Obligations” means any principal, interest, penalties, fees, expenses (including, without limitation, reasonable attorneys’, agents’ and professional advisors’ fees and expenses), indemnifications, reimbursements, damages and other liabilities payable under the documentation governing any Indebtedness.

“Officer” means the Chairman of the Board, Chief Executive Officer, Chief Financial Officer, President, any Executive Vice President, Senior Vice President or Vice President, the Treasurer or the Secretary of the Company.

“Officer’s Certificate” means a certificate signed on behalf of the Company by an Officer of the Company that meets the requirements set forth in this Indenture.

“Opinion of Counsel” means an opinion from legal counsel who is reasonably acceptable to the Trustee, that meets the requirements of Section 13.04 hereof. The counsel may be an employee of or counsel to the Company, any Subsidiary of the Company or the Trustee.

“Participant” means, with respect to the Depositary, Euroclear or Clearstream, a Person who has an account with the Depositary, Euroclear or Clearstream, respectively (and, with respect to DTC, shall include Euroclear and Clearstream).

“Permitted Business” means businesses which are the same, similar, ancillary or reasonably related to the businesses in which the Company and its Restricted Subsidiaries are engaged on the date of this Indenture.

“Permitted Investments” means:

(1)

any Investment in the Company or in a Restricted Subsidiary of the Company that is a Guarantor;

(2)

any Investment in Cash Equivalents;

(3)

any Investment by the Company or any Restricted Subsidiary of the Company in a Person, if as a result of such Investment:

(a) such Person becomes a Restricted Subsidiary of the Company and a Guarantor; or

(b) such Person is merged, consolidated or amalgamated with or into, or transfers or conveys substantially all of its assets to, or is liquidated into, the Company or a Restricted Subsidiary of the Company and a Guarantor;

(4)

any Investment made as a result of the receipt of non-cash consideration from an Asset Sale that was made pursuant to and in compliance with Section 4.10;

(5)

any acquisition of assets or Capital Stock solely in exchange for the issuance of Equity Interests (other than Disqualified Stock) of the Company;

(6)

any Investments received in compromise or resolution of (A) obligations of trade creditors or customers that were incurred in the ordinary course of business of the Company or any of its Restricted Subsidiaries, including pursuant to any plan of reorganization or similar arrangement upon the bankruptcy or insolvency of any trade creditor or customer; or (B) litigation, arbitration or other disputes;

(7)

Investments represented by Hedging Obligations;

(8)

loans or advances to employees made in the ordinary course of business of the Company or any Restricted Subsidiary of the Company in an aggregate principal amount not to exceed $5.0 million at any one time outstanding;

(9)

repurchases of the Notes;

(10)

Collaboration Transactions and Royalty Transactions, to the extent involving an Investment;

(11)

guarantees not prohibited by Section 4.09 and guarantees required by Section 4.17;

(12)

Investments in joint ventures of the Company or any of its Restricted Subsidiaries not to exceed $15.0 million at any one time outstanding;

(13)

Investments in Foreign Subsidiaries not to exceed $15.0 million at any one time outstanding; and

(14)

other Investments in any Person having an aggregate Fair Market Value (measured on the date each such Investment was made and without giving effect to subsequent changes in value), when taken together with all other Investments made pursuant to this clause (14) that are at the time outstanding, not to exceed $20.0 million.

“Permitted Liens” means:

(1)

Liens in favor of the Collateral Agent created pursuant to this Indenture and the Collateral Documents with respect to the Note and Note Guarantees;

(2)

Liens in favor of the Company or the Guarantors;

(3)

Liens on property of a Person existing at the time such Person is merged with or into or consolidated with the Company or any Subsidiary of the Company; provided that such Liens were in existence prior to the contemplation of such merger or consolidation and do not extend to any assets other than those of the Person merged into or consolidated with the Company or the Subsidiary;

(4)

Liens on property (including Capital Stock) existing at the time of acquisition of the property by the Company or any Subsidiary of the Company; provided that such Liens were in existence prior to, such acquisition, and not incurred in contemplation of, such acquisition;

(5)

Liens to secure the performance of statutory obligations, surety or appeal bonds, performance bonds or other obligations of a like nature incurred in the ordinary course of business;

(6)

Liens to secure Permitted Debt (including Capital Lease Obligations) described in clause (4) of the definition thereof covering only the assets acquired with or financed by such Indebtedness;

(7)

Liens existing on the date of this Indenture;

(8)

Liens for taxes, assessments or governmental charges or claims that are not yet delinquent or that are being contested in good faith by appropriate proceedings promptly instituted and diligently concluded; provided that any reserve or other appropriate provision as is required in conformity with GAAP has been made therefor;

(9)

Liens imposed by law, such as carriers’, warehousemen’s, landlord’s and mechanics’ Liens, in each case, incurred in the ordinary course of business, which are not overdue for a period of more than 30 days or which are being contested in good faith and by appropriate proceedings diligently conducted;

(10)

all Liens of record identified in any existing title policies, all survey exceptions, all easements or reservations of, or rights of others for, licenses, rights-of-way, sewers, electric lines, telegraph and telephone lines and other utility or other similar purposes, all local and other Laws, including building and zoning laws, regulations or ordinances, now or hereafter in effect relating to or affecting any real property, and other Liens or imperfections of title to or on real or personal property that are not material in amount or do not in the aggregate materially adversely affect the value of said properties or materially impair their use in the operation of the business of such Person;

(11)

Liens to secure any Permitted Refinancing Indebtedness permitted to be incurred under this Indenture; provided, however, that:

(a)

the new Lien shall be limited to all or part of the same property and assets that secured or, under the written agreements pursuant to which the original Lien arose, could secure the original Lien (plus improvements and accessions to, such property or proceeds or distributions thereof); and

(b)

the Indebtedness secured by the new Lien is not increased to any amount greater than the sum of (x) the outstanding principal amount, or, if greater, committed amount, of the Permitted Refinancing Indebtedness and (y) an amount necessary to pay any fees and expenses, including premiums, related to such renewal, refunding, refinancing, replacement, defeasance or discharge; and

(12)

Liens on assets of a Restricted Subsidiary that is not a Note Guarantor, securing Indebtedness of such Restricted Subsidiary permitted to incurred pursuant to Section 4.09;

(13)

Collaboration Transactions and Royalty Transactions, to the extent involving the incurrence of a Lien;

(14)

grants of intellectual property licenses or sublicenses in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Company or any of its Restricted Subsidiaries;

(15)

judgment and attachment Liens not giving rise to an Event of Default;

(16)

any encumbrance or restriction (including put and call arrangements) with respect to Capital Stock of any joint venture or similar arrangement pursuant to any joint venture or similar agreement;

(17)

leases and subleases of real property in the ordinary course of business which do not materially interfere with the ordinary conduct of the business of the Company or any of its Restricted Subsidiaries;

(18)

Liens arising by virtue of any statutory or common law provisions relating to banker’s liens, rights of set-off or similar rights and remedies as to deposit accounts or other funds maintained with a depository or financial institution; and

(19)

Liens incurred in the ordinary course of business of the Company or any Subsidiary of the Company with respect to obligations that do not exceed $5.0 million at any one time outstanding.

“Permitted Refinancing Indebtedness” means any Indebtedness of the Company or any of its Restricted Subsidiaries issued in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge other Indebtedness of the Company or any of its Restricted Subsidiaries (other than intercompany Indebtedness); provided that:

(1)

the principal amount (or accreted value, if applicable) of such Permitted Refinancing Indebtedness does not exceed the principal amount (or accreted value, if applicable) of the Indebtedness renewed, refunded, refinanced, replaced, defeased or discharged (plus all accrued interest on the Indebtedness and the amount of all fees and expenses, including premiums, incurred in connection therewith);

(2)

such Permitted Refinancing Indebtedness has a final maturity date later than the final maturity date of, and has a Weighted Average Life to Maturity equal to or greater than the Weighted Average Life to Maturity of, the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged;

(3)

if the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged is subordinated in right of payment to the Notes, such Permitted Refinancing Indebtedness is subordinated in right of payment to, the Notes on terms at least as favorable to the holders of Notes as those contained in the documentation governing the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged; and

(4) such Indebtedness is incurred either by the Company or by the Restricted Subsidiary who is the obligor on the Indebtedness being renewed, refunded, refinanced, replaced, defeased or discharged.

“Person” means any individual, corporation, partnership, joint venture, association, joint-stock company, trust, unincorporated organization, limited liability company or government or other entity.

“Preferred Stock” means any Equity Interest with preferential right of payment of dividends or upon liquidation, dissolution, or winding up.

“Private Placement Legend” means the legend set forth in Section 2.06(f)(1) hereof to be placed on all Notes issued under this Indenture except where otherwise permitted by the provisions of this Indenture.

“Public Equity Offering” means a public offering for cash by the Company of Equity Interests (other than Disqualified Stock) of the Company, other than (x) public offerings with respect to the Company’s Equity Interests registered on Form S-4 or S-8 or (y) an issuance to any Subsidiary of the Company.

“QIB” means a “qualified institutional buyer” as defined in Rule 144A.

“Regulation S” means Regulation S promulgated under the Securities Act.

“Regulation S Global Note” means a Global Note substantially in the form of Exhibit A hereto bearing the Global Note Legend and the Private Placement Legend and deposited with or on behalf of and registered in the name of the Depositary or its nominee, issued in a denomination equal to the outstanding principal amount of the Notes sold in reliance on Rule 903 of Regulation S.

“Responsible Officer,” when used with respect to the Trustee, means any officer within the Corporate Trust Administration of the Trustee (or any successor group of the Trustee) or any other officer of the Trustee customarily performing functions similar to those performed by any of the above designated officers and also means, with respect to a particular corporate trust matter, any other officer to whom such matter is referred because of his knowledge of and familiarity with the particular subject, and shall, in each case, have direct responsibility for the administration of this Indenture.

“Restricted Definitive Note” means a Definitive Note bearing the Private Placement Legend.

“Restricted Global Note” means a Global Note bearing the Private Placement Legend.

“Restricted Investment” means an Investment other than a Permitted Investment.

“Restricted Subsidiary” of a Person means any Subsidiary of the referent Person that is not a Royalty Transaction Subsidiary.

“Royalty Transaction” means any royalty monetization transaction with respect to licenses or sublicenses of the intellectual property of the Company or any Restricted Subsidiary, including but not limited to sales of royalty streams, royalty bonds and other royalty financings, synthetic royalty and revenue interest transactions and hybrid monetization transactions.

“Royalty Transaction Subsidiary” means any Subsidiary of the Company that is designated by the Board of Directors of the Company as an Royalty Transaction Subsidiary pursuant to a resolution of the Board of Directors, but only to the extent that such Subsidiary:

(1)

has no Indebtedness other than Non-Recourse Debt;

(2)

has no assets other than assets that are the subject of a Royalty Transaction and is not engaged in any activities other than those related or incidental to a Royalty Transaction;

(3)

is a Person with respect to which neither the Company nor any of its Restricted Subsidiaries has any direct or indirect obligation (a) to subscribe for additional Equity Interests or (b) to maintain or preserve such Person’s financial condition or to cause such Person to achieve any specified levels of operating results, in each case other than pursuant to the terms of Non-Recourse Debt; and

(4)

has not guaranteed or otherwise directly or indirectly provided credit support for any Indebtedness of the Company or any of its Restricted Subsidiaries.

“Rule 144” means Rule 144 promulgated under the Securities Act.

“Rule 144A” means Rule 144A promulgated under the Securities Act.

“Rule 903” means Rule 903 promulgated under the Securities Act.

“Rule 904” means Rule 904 promulgated under the Securities Act.

“Sale/Leaseback Transaction” means an arrangement relating to property now owned or hereafter acquired by the Company or a Restricted Subsidiary whereby the Company or a Restricted Subsidiary transfers such property to a Person and the Company or such Restricted Subsidiary leases it from such Person, other than leases between the Company and a Restricted Subsidiary of the Company or between Restricted Subsidiaries of the Company.

“S&P” means Standard & Poor’s Ratings Group.

“SEC” means the Securities and Exchange Commission.

“Securities Act” means the Securities Act of 1933, as amended.

“Significant Subsidiary” means any Restricted Subsidiary (i) the total assets of which constitute more than 5% of the consolidated total assets of the Company and its Restricted Subsidiaries and (ii) the total revenues of which constitute more than 5% of the consolidated revenues of the Company and its Restricted Subsidiaries.

“Stated Maturity” means, with respect to any installment of principal on any series of Indebtedness, the date on which the payment of principal was scheduled to be paid in the documentation governing such Indebtedness as of the date of this Indenture, and will not include any contingent obligations to repay, redeem or repurchase any such principal prior to the date originally scheduled for the payment thereof.

“Subsidiary” means, with respect to any specified Person:

(1)

any corporation, association or other business entity of which more than 50% of the total voting power of shares of Capital Stock entitled (without regard to the occurrence of any contingency and after giving effect to any voting agreement or stockholders’ agreement that effectively transfers voting power) to vote in the election of directors, managers or trustees of the corporation, association or other business entity is at the time owned or controlled, directly or indirectly, by that Person or one or more of the other Subsidiaries of that Person (or a combination thereof); and

(2) any partnership (a) the sole general partner or the managing general partner of which is such Person or a Subsidiary of such Person or (b) the only general partners of which are that Person or one or more Subsidiaries of that Person (or any combination thereof).

“TIA” means the Trust Indenture Act of 1939, as amended (15 U.S.C. §§ 77aaa-77bbbb).

“Treasury Rate” means, as of any redemption date, the yield to maturity as of such redemption date of United States Treasury securities with a constant maturity (as compiled and published in the most recent Federal Reserve Statistical Release H.15 (519) that has become publicly available at least two business days prior to the redemption date (or, if such Statistical Release is no longer published, any publicly available source of similar market data)) most nearly equal to the period from the redemption date to July 15, 2015; provided, however, that if the period from the redemption date to July 15, 2015, is less than one year, the weekly average yield on actually traded United States Treasury securities adjusted to a constant maturity of one year will be used.

“Trustee” means Wells Fargo Bank, National Association, until a successor replaces it in accordance with the applicable provisions of this Indenture and thereafter means the successor serving hereunder.

“Unrestricted Definitive Note” means a Definitive Note that does not bear and is not required to bear the Private Placement Legend.

“Unrestricted Global Note” means a Global Note that does not bear and is not required to bear the Private Placement Legend.

“U.S. Person” means a U.S. Person as defined in Rule 902(k) promulgated under the Securities Act.

“Voting Stock” of any specified Person as of any date means the Capital Stock of such Person that is at the time entitled to vote in the election of the Board of Directors of such Person.

“Weighted Average Life to Maturity” means, when applied to any Indebtedness at any date, the number of years obtained by dividing:

(1)

the sum of the products obtained by multiplying (a) the amount of each then remaining installment, sinking fund, serial maturity or other required payments of principal, including payment at final maturity, in respect of the Indebtedness, by (b) the number of years (calculated to the nearest one-twelfth) that will elapse between such date and the making of such payment; by

(2)

the then outstanding principal amount of such Indebtedness.

Section 1.02

Other Definitions¹.

Term		Defined in Section
“Affiliate Transaction”		4.11
“Asset Sale Offer”		3.10
“Authentication Order”		2.02
“Cash Reserve Account”		4.22

¹ To be updated

Term		Defined in Section
“Change of Control Offer”		4.15
“Change of Control Payment”		4.15
“Change of Control Payment Date”		4.15
“Covenant Defeasance”		8.03
“DTC”		2.03
“Escrow Agent”		4.22
“Escrow Agreement”		4.22
“Event of Default”		6.01
“Excess Proceeds”		4.10
“incur”		4.09
“Legal Defeasance”		8.02
“Lenders’ Policies”		4.20
“Offer Amount”		3.10
“Offer Period”		3.10
“Paying Agent”		2.03
“Permitted Debt”		4.09
“Payment Default”		6.01
“Permitted Convertible Notes”		4.09
“Premises”		4.20
“Prepayment Restricted Indebtedness”		4.07
“Purchase Date”		3.10
“Registrar”		2.03
“Repurchase Date”		4.16
“Restricted Payments”		4.07
“Royalty Transactions Repurchase Offer”		4.16
“Royalty Transactions Repurchase Offer Amount”		4.16
“Royalty Transactions Repurchase Offer Period”		4.16

Section 1.03

Incorporation by Reference of Trust Indenture Act.

Whenever this Indenture refers to a provision of the TIA, the provision is incorporated by reference in and made a part of this Indenture.

The following TIA terms used in this Indenture have the following meanings:

“indenture securities” means the Notes;

“indenture security Holder” means a Holder of a Note;

“indenture to be qualified” means this Indenture;

“indenture trustee” or “institutional trustee” means the Trustee; and

“obligor” on the Notes and the Note Guarantees means the Company and the Guarantors, respectively, and any successor obligor upon the Notes and the Note Guarantees, respectively.

All other terms used in this Indenture that are defined by the TIA, defined by TIA reference to another statute or defined by SEC rule under the TIA have the meanings so assigned to them.

Section 1.04

Rules of Construction.

Unless the context otherwise requires:

(1) a term has the meaning assigned to it;

(2) an accounting term not otherwise defined has the meaning assigned to it in accordance with GAAP;

(3) “or” is not exclusive;

(4) words in the singular include the plural, and in the plural include the singular;

(5) “will” shall be interpreted to express a command;

(6) provisions apply to successive events and transactions; and

(7) references to sections of or rules under the Securities Act will be deemed to include substitute, replacement of successor sections or rules adopted by the SEC from time to time.

ARTICLE 2
THE NOTES

Section 2.01

Form and Dating.

(a) General. The Notes will be substantially in the form of Exhibit A hereto. The Notes may have notations, legends or endorsements required by law, stock exchange rule or usage. Each Note will be dated the date of its authentication. The Notes shall be in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof.

The terms and provisions contained in the Notes will constitute, and are hereby expressly made, a part of this Indenture and the Company, the Guarantors and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent any provision of any Note conflicts with the express provisions of this Indenture, the provisions of this Indenture shall govern and be controlling.

(b) Global Notes. Notes issued in global form will be substantially in the form of Exhibit A hereto (including the Global Note Legend thereon and the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Notes issued in definitive form will be substantially in the form of Exhibit A hereto (but without the Global Note Legend thereon and without the “Schedule of Exchanges of Interests in the Global Note” attached thereto). Each Global Note will represent such of the outstanding Notes as will be specified therein and each shall provide that it represents the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of outstanding Notes represented thereby may from time to time be reduced or increased, as appropriate, to reflect exchanges and redemptions. Any endorsement of a Global Note to reflect the amount of any increase or decrease in the aggregate principal amount of outstanding Notes represented thereby will be made by the Trustee or the Custodian, at the direction of the Trustee, in accordance with instructions given by the Holder thereof as required by Section 2.06 hereof.

Section 2.02

Execution and Authentication.

At least one Officer must sign the Notes for the Company by manual or facsimile signature.

If an Officer whose signature is on a Note no longer holds that office at the time a Note is authenticated, the Note will nevertheless be valid.

A Note will not be valid until authenticated by the manual signature of the Trustee. The signature will be conclusive evidence that the Note has been authenticated under this Indenture.

The Trustee will, upon receipt of a written order of the Company signed by two Officers (an “Authentication Order”), authenticate Notes for original issue that may be validly issued under this Indenture. The aggregate principal amount of Notes outstanding at any time may not exceed $125,000,000, except as provided in Section 2.07 hereof.

The Trustee may appoint an authenticating agent acceptable to the Company to authenticate Notes. An authenticating agent may authenticate Notes whenever the Trustee may do so. Each reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as an Agent to deal with Holders or an Affiliate of the Company.

Section 2.03

Registrar and Paying Agent.

The Company will maintain an office or agency where Notes may be presented for registration of transfer or for exchange (“Registrar”) and an office or agency where Notes may be presented for payment (“Paying Agent”). The Registrar will keep a register of the Notes and of their transfer and exchange. The Company may appoint one or more co-registrars and one or more additional paying agents. The term “Registrar” includes any co-registrar and the term “Paying Agent” includes any additional paying agent. The Company may change any Paying Agent or Registrar without notice to any Holder. The Company will notify the Trustee in writing of the name and address of any Agent not a party to this Indenture. If the Company fails to appoint or maintain another entity as Registrar or Paying Agent, the Trustee shall act as such. The Company or any of its Subsidiaries may act as Paying Agent or Registrar.

The Company initially appoints The Depository Trust Company (“DTC”) to act as Depositary with respect to the Global Notes.

The Company initially appoints the Trustee to act as the Registrar and Paying Agent and to act as Custodian with respect to the Global Notes.

Section 2.04

Paying Agent to Hold Money in Trust.

The Company will require each Paying Agent other than the Trustee to agree in writing that the Paying Agent will hold in trust for the benefit of Holders or the Trustee all money held by the Paying Agent for the payment of principal, premium, if any, or interest on the Notes, and will notify the Trustee, in writing, of any default by the Company in making any such payment. While any such default continues, the Trustee may require a Paying Agent to pay all money held by it to the Trustee. The Company at any time may require a Paying Agent to pay all money held by it to the Trustee. Upon payment over to the Trustee, the Paying Agent (if other than the Company or a Subsidiary) will have no further liability for the money. If the Company or a Subsidiary acts as Paying Agent, it will segregate and hold in a separate trust fund for the benefit of the Holders all money held by it as Paying Agent. Upon any bankruptcy or reorganization proceedings relating to the Company, the Trustee will serve as Paying Agent for the Notes.

Section 2.05

Holder Lists.

The Trustee will preserve in as current a form as is reasonably practicable the most recent list available to it of the names and addresses of all Holders and shall otherwise comply with TIA § 312(a). If the Trustee is not the Registrar, the Company will furnish to the Trustee at least seven Business Days before each interest payment date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the Trustee may reasonably require of the names and addresses of the Holders of Notes and the Company shall otherwise comply with TIA § 312(a).

Section 2.06

Transfer and Exchange.

(a) Transfer and Exchange of Global Notes. A Global Note may not be transferred except as a whole by the Depositary to a nominee of the Depositary, by a nominee of the Depositary to the Depositary or to another nominee of the Depositary, or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary. All Global Notes will be exchanged by the Company for Definitive Notes if:

(1) the Company delivers to the Trustee notice from the Depositary that it is unwilling or unable to continue to act as Depositary or that it is no longer a clearing agency registered under the Exchange Act and, in either case, a successor Depositary is not appointed by the Company within 120 days after the date of such notice from the Depositary;

(2) the Company in its sole discretion determines that the Global Notes (in whole but not in part) should be exchanged for Definitive Notes and delivers a written notice to such effect to the Trustee; or

(3) there has occurred and is continuing a Default or Event of Default with respect to the Notes.

Upon the occurrence of either of the preceding events in (1) or (2) above, Definitive Notes shall be issued in such names as the Depositary shall instruct the Trustee. Global Notes also may be exchanged or replaced, in whole or in part, as provided in Sections 2.07 and 2.10 hereof. Every Note authenticated and delivered in exchange for, or in lieu of, a Global Note or any portion thereof, pursuant to this Section 2.06 or Section 2.07 or 2.10 hereof, shall be authenticated and delivered in the form of, and shall be, a Global Note. A Global Note may not be exchanged for another Note other than as provided in this Section 2.06(a), however, beneficial interests in a Global Note may be transferred and exchanged as provided in Section 2.06(b), (c) or (d) hereof.

(b) Transfer and Exchange of Beneficial Interests in the Global Notes. The transfer and exchange of beneficial interests in the Global Notes will be effected through the Depositary, in accordance with the provisions of this Indenture and the Applicable Procedures. Beneficial interests in the Restricted Global Notes will be subject to restrictions on transfer comparable to those set forth herein to the extent required by the Securities Act. Transfers of beneficial interests in the Global Notes also will require compliance with either subparagraph (1) or (2) below, as applicable, as well as one or more of the other following subparagraphs, as applicable:

(1) Transfer of Beneficial Interests in the Same Global Note. Beneficial interests in any Restricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in the same Restricted Global Note in accordance with the transfer restrictions set forth in the Private Placement Legend. Beneficial interests in any Unrestricted Global Note may be transferred to Persons who take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note. No written orders or instructions shall be required to be delivered to the Registrar to effect the transfers described in this Section 2.06(b)(1).

(2) All Other Transfers and Exchanges of Beneficial Interests in Global Notes. In connection with all transfers and exchanges of beneficial interests that are not subject to Section 2.06(b)(1) above, the transferor of such beneficial interest must deliver to the Registrar either:

(A) both:

(i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to credit or cause to be credited a beneficial interest in another Global Note in an amount equal to the beneficial interest to be transferred or exchanged; and

(ii) instructions given in accordance with the Applicable Procedures containing information regarding the Participant account to be credited with such increase; or

(B) both:

(i) a written order from a Participant or an Indirect Participant given to the Depositary in accordance with the Applicable Procedures directing the Depositary to cause to be issued a Definitive Note in an amount equal to the beneficial interest to be transferred or exchanged; and

(ii) instructions given by the Depositary to the Registrar containing information regarding the Person in whose name such Definitive Note shall be registered to effect the transfer or exchange referred to in (1) above.

Upon satisfaction of all of the requirements for transfer or exchange of beneficial interests in Global Notes contained in this Indenture and the Notes or otherwise applicable under the Securities Act, the Trustee shall adjust the principal amount of the relevant Global Note(s) pursuant to Section 2.06(g) hereof.

(3) Transfer of Beneficial Interests to Another Restricted Global Note. A beneficial interest in any Restricted Global Note may be transferred to a Person who takes delivery thereof in the form of a beneficial interest in another Restricted Global Note if the transfer complies with the requirements of Section 2.06(b)(2) above and the Registrar receives the following:

(A) if the transferee will take delivery in the form of a beneficial interest in the 144A Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(B) if the transferee will take delivery in the form of a beneficial interest in the Regulation S Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and

(C) if the transferee will take delivery in the form of a beneficial interest in the IAI Global Note, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable.

(4) Transfer and Exchange of Beneficial Interests in a Restricted Global Note for Beneficial Interests in an Unrestricted Global Note. A beneficial interest in any Restricted Global Note may be exchanged by any holder thereof for a beneficial interest in an Unrestricted Global Note or transferred to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note if the exchange or transfer complies with the requirements of Section 2.06(b)(2) above and:

(A) the Registrar receives the following:

(i) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(a) thereof; or

(ii) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this subparagraph (A), if the Registrar so requests or if the Applicable Procedures so require, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

If any such transfer is effected pursuant to subparagraph (A) above at a time when an Unrestricted Global Note has not yet been issued, the Company shall issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee shall authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the aggregate principal amount of beneficial interests transferred or exchanged pursuant to subparagraph (A) above. Notwithstanding anything to the contrary contained herein, the Company hereby agrees that, after the expiration of the six-month holding period under Rule 144 and upon receipt by the Registrar of the certification set forth in item (1)(a) of Exhibit C hereto or item (4) of Exhibit B hereto, as applicable, but without any requirement to deliver an Opinion of Counsel, it shall issue one or more Unrestricted Global Notes, an Authentication Order and provide the Trustee with such other documentation as reasonably requested by the Trustee (including the Officer’s Certificate and Opinion of Counsel set forth in Section 13.03 hereof) to exchange a beneficial interest in a Restricted Global Note into a beneficial interest in an Unrestricted Global Note or to transfer a beneficial interest in a Restricted Global Note to a Person who shall take delivery thereof in the form of a beneficial interest in an Unrestricted Global Note.

Beneficial interests in an Unrestricted Global Note cannot be exchanged for, or transferred to Persons who take delivery thereof in the form of, a beneficial interest in a Restricted Global Note.

(1) Beneficial Interests in Restricted Global Notes to Restricted Definitive Notes. If any holder of a beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Restricted Definitive Note, then, upon receipt by the Registrar of the following documentation:

(A) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for a Restricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (2)(a) thereof;

(B) if such beneficial interest is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such beneficial interest is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof;

(D) if such beneficial interest is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof;

(E) if such beneficial interest is being transferred to an Institutional Accredited Investor in reliance on an exemption from the registration requirements of the Securities Act other than those listed in subparagraphs (B) through (D) above, a certificate to the effect set forth in Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable;

(F) if such beneficial interest is being transferred to the Company or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof; or

(G) if such beneficial interest is being transferred pursuant to an effective registration statement under the Securities Act, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(c) thereof,

the Trustee shall cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Company shall execute and the Trustee shall authenticate, upon receipt of an Authentication Order, and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c) shall be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest shall instruct the Registrar through instructions from the Depositary and the Participant or Indirect Participant. The Trustee shall deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest in a Restricted Global Note pursuant to this Section 2.06(c)(1) shall bear the Private Placement Legend and shall be subject to all restrictions on transfer contained therein.

(2) [Reserved]

(3) Beneficial Interests in Restricted Global Notes to Unrestricted Definitive Notes. A holder of a beneficial interest in a Restricted Global Note may exchange such beneficial interest for an Unrestricted Definitive Note or may transfer such beneficial interest to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note only if:

(A) the Registrar receives the following:

(i) if the holder of such beneficial interest in a Restricted Global Note proposes to exchange such beneficial interest for an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit C hereto, including the certifications in item (1)(b) thereof; or

(ii) if the holder of such beneficial interest in a Restricted Global Note proposes to transfer such beneficial interest to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

(4) Beneficial Interests in Unrestricted Global Notes to Unrestricted Definitive Notes. If any holder of a beneficial interest in an Unrestricted Global Note proposes to exchange such beneficial interest for a Definitive Note or to transfer such beneficial interest to a Person who takes delivery thereof in the form of a Definitive Note, then, upon satisfaction of the conditions set forth in Section 2.06(b)(2) hereof, the Trustee will cause the aggregate principal amount of the applicable Global Note to be reduced accordingly pursuant to Section 2.06(g) hereof, and the Company will execute and the Trustee will, upon receipt of an Authentication Order, authenticate and deliver to the Person designated in the instructions a Definitive Note in the appropriate principal amount. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(4) will be registered in such name or names and in such authorized denomination or denominations as the holder of such beneficial interest requests through instructions to the Registrar from or through the Depositary and the Participant or Indirect Participant. The Trustee will deliver such Definitive Notes to the Persons in whose names such Notes are so registered. Any Definitive Note issued in exchange for a beneficial interest pursuant to this Section 2.06(c)(4)will not bear the Private Placement Legend.

(d) Transfer and Exchange of Definitive Notes for Beneficial Interests.

(1) Restricted Definitive Notes to Beneficial Interests in Restricted Global Notes. If any Holder of a Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note or to transfer such Restricted Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in a Restricted Global Note, then, upon receipt by the Registrar of the following documentation:

(A) if the Holder of such Restricted Definitive Note proposes to exchange such Note for a beneficial interest in a Restricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (2)(b) thereof;

(B) if such Restricted Definitive Note is being transferred to a QIB in accordance with Rule 144A, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (1) thereof;

(C) if such Restricted Definitive Note is being transferred to a Non-U.S. Person in an offshore transaction in accordance with Rule 903 or Rule 904, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (2) thereof;

(D) if such Restricted Definitive Note is being transferred pursuant to an exemption from the registration requirements of the Securities Act in accordance with Rule 144, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(a) thereof;

(F) if such Restricted Definitive Note is being transferred to the Company or any of its Subsidiaries, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(b) thereof; or

(G) if such Restricted Definitive Note is being transferred pursuant to an effective registration statement under the Securities Act, a certificate to the effect set forth in Exhibit B hereto, including the certifications in item (3)(c) thereof,

the Trustee will cancel the Restricted Definitive Note, increase or cause to be increased the aggregate principal amount of, in the case of clause (A) above, the appropriate Restricted Global Note, in the case of clause (B) above, the 144A Global Note, in the case of clause (C) above, the Regulation S Global Note, and in all other cases, the IAI Global Note.

(2) Restricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of a Restricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Restricted Definitive Note to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note only if:

(A) the Registrar receives the following:

(i) if the Holder of such Definitive Notes proposes to exchange such Notes for a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(c) thereof; or

(ii) if the Holder of such Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of a beneficial interest in the Unrestricted Global Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

Upon satisfaction of the conditions of any of the subparagraphs in this Section 2.06(d)(2), the Trustee will cancel the Definitive Notes and increase or cause to be increased the aggregate principal amount of the Unrestricted Global Note.

(3) Unrestricted Definitive Notes to Beneficial Interests in Unrestricted Global Notes. A Holder of an Unrestricted Definitive Note may exchange such Note for a beneficial interest in an Unrestricted Global Note or transfer such Definitive Notes to a Person who takes delivery thereof in the form of a beneficial interest in an Unrestricted Global Note at any time. Upon receipt of a request for such an exchange or transfer, the Trustee will cancel the applicable Unrestricted Definitive Note and increase or cause to be increased the aggregate principal amount of one of the Unrestricted Global Notes.

If any such exchange or transfer from a Definitive Note to a beneficial interest is effected pursuant to subparagraphs (2)(A) or (3) above at a time when an Unrestricted Global Note has not yet been issued, the Company will issue and, upon receipt of an Authentication Order in accordance with Section 2.02 hereof, the Trustee will authenticate one or more Unrestricted Global Notes in an aggregate principal amount equal to the principal amount of Definitive Notes so transferred.

(e) Transfer and Exchange of Definitive Notes for Definitive Notes. Upon request by a Holder of Definitive Notes and such Holder’s compliance with the provisions of this Section 2.06(e), the Registrar will register the transfer or exchange of Definitive Notes. Prior to such registration of transfer or exchange, the requesting Holder must present or surrender to the Registrar the Definitive Notes duly endorsed or accompanied by a written instruction of transfer in form satisfactory to the Registrar duly executed by such Holder or by its attorney, duly authorized in writing. In addition, the requesting Holder must provide any additional certifications, documents and information, as applicable, required pursuant to the following provisions of this Section 2.06(e).

(1) Restricted Definitive Notes to Restricted Definitive Notes. Any Restricted Definitive Note may be transferred to and registered in the name of Persons who take delivery thereof in the form of a Restricted Definitive Note if the Registrar receives the following:

(A) if the transfer will be made pursuant to Rule 144A, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (1) thereof;

(B) if the transfer will be made pursuant to Rule 903 or Rule 904, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications in item (2) thereof; and

(C) if the transfer will be made pursuant to any other exemption from the registration requirements of the Securities Act, then the transferor must deliver a certificate in the form of Exhibit B hereto, including the certifications, certificates and Opinion of Counsel required by item (3) thereof, if applicable.

(2) Restricted Definitive Notes to Unrestricted Definitive Notes. Any Restricted Definitive Note may be exchanged by the Holder thereof for an Unrestricted Definitive Note or transferred to a Person or Persons who take delivery thereof in the form of an Unrestricted Definitive Note if:

(A) the Registrar receives the following:

(i) if the Holder of such Restricted Definitive Notes proposes to exchange such Notes for an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit C hereto, including the certifications in item (1)(d) thereof; or

(ii) if the Holder of such Restricted Definitive Notes proposes to transfer such Notes to a Person who shall take delivery thereof in the form of an Unrestricted Definitive Note, a certificate from such Holder in the form of Exhibit B hereto, including the certifications in item (4) thereof;

and, in each such case set forth in this subparagraph (A), if the Registrar so requests, an Opinion of Counsel in form reasonably acceptable to the Registrar to the effect that such exchange or transfer is in compliance with the Securities Act and that the restrictions on transfer contained herein and in the Private Placement Legend are no longer required in order to maintain compliance with the Securities Act.

(3) Unrestricted Definitive Notes to Unrestricted Definitive Notes. A Holder of Unrestricted Definitive Notes may transfer such Notes to a Person who takes delivery thereof in the form of an Unrestricted Definitive Note. Upon receipt of a request to register such a transfer, the Registrar shall register the Unrestricted Definitive Notes pursuant to the instructions from the Holder thereof.

(f) Legends. The following legends will appear on the face of all Global Notes and Definitive Notes issued under this Indenture unless specifically stated otherwise in the applicable provisions of this Indenture.

(1) Private Placement Legend.

(A) Except as permitted by subparagraph (B) below, each Restricted Global Note and each Restricted Definitive Note (and all Notes issued in exchange therefor or substitution thereof) shall bear the legend in substantially the following form

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), OR ANY STATE SECURITIES LAWS. NEITHER THIS SECURITY NOR ANY INTEREST OR PARTICIPATION HEREIN MAY BE REOFFERED, SOLD, ASSIGNED, TRANSFERRED, PLEDGED, ENCUMBERED OR OTHERWISE DISPOSED OF IN THE ABSENCE OF SUCH REGISTRATION OR UNLESS SUCH TRANSACTION IS EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION.

THE HOLDER OF THIS SECURITY, BY ITS ACCEPTANCE HEREOF (1) REPRESENTS THAT (A) IT IS A “QUALIFIED INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT), (B) IT IS A NON-U.S. PERSON AND IS ACQUIRING THIS SECURITY IN AN OFFSHORE TRANSACTION WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO SUCH PURCHASER IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE OR (C) IT IS AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 (a)(1), (2), (3) or (7)UNDER THE SECURITIES ACT AND (2) AGREES TO OFFER, SELL OR OTHERWISE TRANSFER SUCH SECURITY, PRIOR TO THE EXPIRATION OF THE 6 MONTH HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 UNDER THE SECURITIES ACT, ONLY (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) FOR SO LONG AS THE SECURITIES ARE ELIGIBLE FOR RESALE PURSUANT TO RULE 144A UNDER THE SECURITIES ACT, TO A PERSON IT REASONABLY BELIEVES IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT THAT PURCHASES FOR ITS OWN ACCOUNT OR FOR THE ACCOUNT OF A QUALIFIED INSTITUTIONAL BUYER TO WHICH NOTICE IS GIVEN THAT THE TRANSFER IS BEING MADE IN RELIANCE ON RULE 144A UNDER THE SECURITIES ACT, (C) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE UNITED STATES WITHIN THE MEANING OF REGULATION S UNDER THE SECURITIES ACT AND IN ACCORDANCE WITH THE LAWS APPLICABLE TO IT IN THE JURISDICTION IN WHICH SUCH PURCHASE IS MADE, (D) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF RULE 501 (a)(1), (2), (3) OR (7) UNDER THE SECURITIES ACT THAT IS ACQUIRING THE SECURITY FOR ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN ACCREDITED INVESTOR, FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT, (E) PURSUANT TO A REGISTRATION STATEMENT THAT HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT OR (F) PURSUANT TO ANOTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT, SUBJECT TO THE COMPANY’S AND THE TRUSTEE’S, OR REGISTRAR’S, AS APPLICABLE, RIGHT PRIOR TO ANY SUCH OFFER, SALE OR TRANSFER PURSUANT TO CLAUSE (C), (D) OR (F) TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATION AND/OR OTHER INFORMATION SATISFACTORY TO EACH OF THEM, AND IN EACH OF THE FOREGOING CASES, A CERTIFICATE OF TRANSFER IN THE FORM APPEARING ON THE OTHER SIDE OF THIS SECURITY IS COMPLETED AND DELIVERED BY THE TRANSFEROR TO THE TRUSTEE OR REGISTRAR. THIS LEGEND WILL BE REMOVED UPON THE REQUEST OF THE HOLDER AFTER THE EXPIRATION OF THE 6 MONTH HOLDING PERIOD WITH RESPECT TO RESTRICTED SECURITIES SET FORTH IN RULE 144 UNDER THE SECURITIES ACT.

(B) Notwithstanding the foregoing, any Global Note or Definitive Note issued pursuant to subparagraphs (b)(4), (c)(3), (d)(2), (d)(3), (e)(2) or (e)(3) of this Section 2.06 (and all Notes issued in exchange therefor or substitution thereof) will not bear the Private Placement Legend.

(2) Global Note Legend. Each Global Note will bear a legend in substantially the following form:

“THIS GLOBAL NOTE IS HELD BY THE DEPOSITARY (AS DEFINED IN THE INDENTURE GOVERNING THIS NOTE) OR ITS NOMINEE IN CUSTODY FOR THE BENEFIT OF THE BENEFICIAL OWNERS HEREOF, AND IS NOT TRANSFERABLE TO ANY PERSON UNDER ANY CIRCUMSTANCES EXCEPT THAT (1) THE TRUSTEE MAY MAKE SUCH NOTATIONS HEREON AS MAY BE REQUIRED PURSUANT TO SECTION 2.06 OF THE INDENTURE, (2) THIS GLOBAL NOTE MAY BE EXCHANGED IN WHOLE BUT NOT IN PART PURSUANT TO SECTION 2.06(a) OF THE INDENTURE, (3) THIS GLOBAL NOTE MAY BE DELIVERED TO THE TRUSTEE FOR CANCELLATION PURSUANT TO SECTION 2.11 OF THE INDENTURE AND (4) THIS GLOBAL NOTE MAY BE TRANSFERRED TO A SUCCESSOR DEPOSITARY WITH THE PRIOR WRITTEN CONSENT OF THE COMPANY.

UNLESS AND UNTIL IT IS EXCHANGED IN WHOLE OR IN PART FOR NOTES IN DEFINITIVE FORM, THIS NOTE MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY OR BY THE DEPOSITARY OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR DEPOSITARY. UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY (55 WATER STREET, NEW YORK, NEW YORK) (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR SUCH OTHER ENTITY AS MAY BE REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.”

(g) Cancellation and/or Adjustment of Global Notes. At such time as all beneficial interests in a particular Global Note have been exchanged for Definitive Notes or a particular Global Note has been redeemed, repurchased or canceled in whole and not in part, each such Global Note will be returned to or retained and canceled by the Trustee in accordance with Section 2.11 hereof. At any time prior to such cancellation, if any beneficial interest in a Global Note is exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note or for Definitive Notes, the principal amount of Notes represented by such Global Note will be reduced accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such reduction; and if the beneficial interest is being exchanged for or transferred to a Person who will take delivery thereof in the form of a beneficial interest in another Global Note, such other Global Note will be increased accordingly and an endorsement will be made on such Global Note by the Trustee or by the Depositary at the direction of the Trustee to reflect such increase.

(h) General Provisions Relating to Transfers and Exchanges.

(1) To permit registrations of transfers and exchanges, the Company will execute and the Trustee will authenticate Global Notes and Definitive Notes upon receipt of an Authentication Order in accordance with Section 2.02 hereof or at the Registrar’s request.

(2) No service charge will be made to a Holder of a beneficial interest in a Global Note or to a Holder of a Definitive Note for any registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any transfer tax or similar governmental charge payable in connection therewith (other than any such transfer taxes or similar governmental charge payable upon exchange or transfer pursuant to Sections 2.10, 3.06, 4.10 and 4.15 hereof).

(3) All Global Notes and Definitive Notes issued upon any registration of transfer or exchange of Global Notes or Definitive Notes will be the valid obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture, as the Global Notes or Definitive Notes surrendered upon such registration of transfer or exchange.

(4) Neither the Registrar nor the Company will be required:

(A) to issue, to register the transfer of or to exchange any Notes during a period beginning at the opening of business 15 days before the mailing of a notice of redemption under Section 3.03 hereof and ending at the close of business on the day of selection;

(B) to register the transfer of or to exchange any Note selected for redemption in whole or in part, except the unredeemed portion of any Note being redeemed in part; or

(C) to register the transfer of or to exchange a Note between a record date and the next succeeding interest payment date.

(5) Prior to due presentment for the registration of a transfer of any Note, the Trustee, any Agent and the Company may deem and treat the Person in whose name any Note is registered as the absolute owner of such Note for the purpose of receiving payment of principal of and interest on such Notes and for all other purposes, and none of the Trustee, any Agent or the Company shall be affected by notice to the contrary.

(6) The Trustee will, upon receipt of an Authentication Order, authenticate Global Notes and Definitive Notes in accordance with the provisions of Section 2.02 hereof.

(7) All certifications, certificates and Opinions of Counsel required to be submitted to the Registrar pursuant to this Section 2.06 to effect a registration of transfer or exchange may be submitted by facsimile.

(8) Trustee and the Registrar shall have no obligation or duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among Depositary participants, members or beneficial owners in any Global Note) other than to require delivery of such certificates and other documentation or evidence as are expressly required by, and to do so if and when expressly required by, the terms of this Indenture, and to examine the same to determine substantial compliance as to form with the express requirements hereof.

(9) Neither the Trustee nor any agent of the Trustee shall have any responsibility for any actions taken or not taken by the Depositary.

(10) The Trustee shall have no responsibility or obligation to any Participant or Indirect Participant or any other Person with respect to the accuracy of the books or records, or the acts or omissions, of the Depositary or its nominee or of any participant or member thereof, with respect to any ownership interest in the Notes or with respect to the delivery to any Participant or Indirect Participant or other Person (other than the Depositary) of any notice (including any notice of redemption) or the payment of any amount, under or with respect to such Notes. All notices and communications to be given to the Holders and all payments to be made to Holders under the Notes shall be given or made only to or upon the order of the registered Holders (which shall be the Depositary or its nominee in the case of a Global Note). The rights of beneficial owners in any Global Note shall be exercised only through the Depositary subject to the Applicable Procedures. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its Participants or Indirect Participants.

Section 2.07

Replacement Notes.

If any mutilated Note is surrendered to the Trustee or the Company and the Trustee receives evidence to its satisfaction of the destruction, loss or theft of any Note, the Company will issue and the Trustee will, upon receipt of an Authentication Order, authenticate a replacement Note if the Trustee’s requirements are met. An indemnity bond must be supplied by the Holder that is sufficient in the judgment of the Trustee and the Company to protect the Company, the Trustee, any Agent and any authenticating agent from any loss that any of them may suffer if a Note is replaced. The Company may charge for its expenses in replacing a Note.

Every replacement Note is an additional obligation of the Company and will be entitled to all of the benefits of this Indenture equally and proportionately with all other Notes duly issued hereunder.

Section 2.08

Outstanding Notes.

The Notes outstanding at any time are all the Notes authenticated by the Trustee except for those canceled by it, those delivered to it for cancellation, those reductions in the interest in a Global Note effected by the Trustee in accordance with the provisions hereof, and those described in this Section 2.08 as not outstanding. Except as set forth in Section 2.09 hereof, a Note does not cease to be outstanding because the Company or an Affiliate of the Company holds the Note; however, Notes held by the Company or a Subsidiary of the Company shall not be deemed to be outstanding for purposes of Section 3.07(a) hereof.

If a Note is replaced pursuant to Section 2.07 hereof, it ceases to be outstanding unless the Trustee receives proof satisfactory to it that the replaced Note is held by a protected purchaser.

If the principal amount of any Note is considered paid under Section 4.01 hereof, it ceases to be outstanding and interest on it ceases to accrue.

If the Paying Agent (other than the Company, a Subsidiary or an Affiliate of any thereof) holds, on a redemption date or maturity date, money sufficient to pay Notes payable on that date, then on and after that date such Notes will be deemed to be no longer outstanding and will cease to accrue interest.

Section 2.09

Treasury Notes.

In determining whether the Holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned by the Company or any Guarantor, or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company or any Guarantor, will be considered as though not outstanding, except that for the purposes of determining whether the Trustee will be protected in relying on any such direction, waiver or consent, only Notes that the Trustee knows are so owned will be so disregarded. Upon request of the Trustee, the Company shall furnish to the Trustee promptly an Officer’s Certificate listing and identifying all Notes, if any, known by the Company to be owned or held by or for the account of any of the above described Persons, and the Trustee shall be entitled to accept and rely upon such Officers’ Certificate as conclusive evidence of the facts therein set forth and of the fact that all Notes not listed therein are outstanding for the purpose of any determination.

Section 2.10 Temporary Notes.

Until certificates representing Notes are ready for delivery, the Company may prepare and the Trustee, upon receipt of an Authentication Order, will authenticate temporary Notes. Temporary Notes will be substantially in the form of certificated Notes but may have variations that the Company considers appropriate for temporary Notes and as may be reasonably acceptable to the Trustee. Without unreasonable delay, the Company will prepare and the Trustee will, upon receipt of an Authentication Order, authenticate definitive Notes in exchange for temporary Notes.

Holders of temporary Notes will be entitled to all of the benefits of this Indenture.

Section 2.11 Cancellation.

The Company at any time may deliver Notes to the Trustee for cancellation. The Registrar and Paying Agent will forward to the Trustee any Notes surrendered to them for registration of transfer, exchange or payment. The Trustee and no one else will cancel all Notes surrendered for registration of transfer, exchange, payment, replacement or cancellation and will destroy canceled Notes (subject to the record retention requirement of the Exchange Act). Evidence of the cancellation of all canceled Notes will be delivered to the Company. The Company may not issue new Notes to replace Notes that it has paid or that have been delivered to the Trustee for cancellation.

Section 2.12 Defaulted Interest.

If the Company defaults in a payment of interest on the Notes, it will pay the defaulted interest in any lawful manner plus, to the extent lawful, interest payable on the defaulted interest, to the Persons who are Holders on a subsequent special record date, in each case at the rate provided in the Notes and in Section 4.01 hereof. The Company will notify the Trustee in writing of the amount of defaulted interest proposed to be paid on each Note and the date of the proposed payment. The Company will fix or cause to be fixed each such special record date and payment date; provided that no such special record date may be less than 10 days prior to the related payment date for such defaulted interest. At least 15 days before the special record date, the Company (or, upon the written request of the Company, the Trustee in the name and at the expense of the Company) will mail or cause to be mailed (in the case of Notes held in book entry form, by electronic transmission) to Holders a notice that states the special record date, the related payment date and the amount of such interest to be paid.

ARTICLE 3
REDEMPTION AND PREPAYMENT

Section 3.01 Notices to Trustee.

If the Company elects to redeem Notes pursuant to the optional redemption provisions of Section 3.07 hereof, it must furnish to the Trustee, at least 30 days but not more than 60 days before a redemption date, an Officer’s Certificate setting forth:

(1) the clause of this Indenture pursuant to which the redemption shall occur;

(2) the redemption date;

(3) the principal amount of Notes to be redeemed; and

(4) the redemption price.

Section 3.02 Selection of Notes to Be Redeemed or Purchased.

If less than all of the Notes are to be redeemed at any time, the Trustee will select Notes for redemption on a pro rata basis to the extent practicable, subject to the applicable procedures of the Depository unless otherwise required by law or applicable stock exchange requirements.

In the event of partial redemption or purchase by lot, the particular Notes to be redeemed or purchased will be selected, unless otherwise provided herein, not less than 30 nor more than 60 days prior to the redemption or purchase date by the Trustee from the outstanding Notes not previously called for redemption or purchase.

The Trustee will promptly notify the Company in writing of the Notes selected for redemption or purchase and, in the case of any Note selected for partial redemption or purchase, the principal amount thereof to be redeemed or purchased. Notes and portions of Notes selected will be in amounts of $2,000 or whole multiples of $1,000; except that if all of the Notes of a Holder are to be redeemed or purchased, the entire outstanding amount of Notes held by such Holder, even if not a multiple of $1,000, shall be redeemed or purchased. Except as provided in the preceding sentence, provisions of this Indenture that apply to Notes called for redemption or purchase also apply to portions of Notes called for redemption or purchase. No Notes of $2,000 or less can be redeemed in part.

Section 3.03 Notice of Redemption.

Subject to the provisions of Section 3.10 hereof, at least 30 days but not more than 60 days before a redemption date, the Company will mail or cause to be mailed, by first class mail (in the case of Notes held in book entry form, by electronic transmission), a notice of redemption to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction and discharge of this Indenture pursuant to Articles 8 or 12 hereof.

The notice will identify the Notes to be redeemed and will state:

(1) the redemption date;

(2) the redemption price;

(3) if any Note is being redeemed in part, the portion of the principal amount of such Note to be redeemed and that, after the redemption date upon surrender of such Note, a new Note or Notes in principal amount equal to the unredeemed portion will be issued upon cancellation of the original Note;

(4) the name and address of the Paying Agent;

(5) that Notes called for redemption must be surrendered to the Paying Agent to collect the redemption price;

(6) that, unless the Company defaults in making such redemption payment, interest on Notes called for redemption ceases to accrue on and after the redemption date;

(7) the paragraph of the Notes and/or Section of this Indenture pursuant to which the Notes called for redemption are being redeemed; and

(8) that no representation is made as to the correctness or accuracy of the CUSIP number, if any, listed in such notice or printed on the Notes.

At the Company’s request, the Trustee will give the notice of redemption in the Company’s name and at its expense; provided, however, that the Company has delivered to the Trustee, at least 45 days (or such shorter notice as may be agreed to by the Trustee) prior to the redemption date, an Officer’s Certificate requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in the preceding paragraph.

Section 3.04 Effect of Notice of Redemption.

Once notice of redemption is mailed in accordance with Section 3.03 hereof, Notes called for redemption become irrevocably due and payable on the redemption date at the redemption price. A notice of redemption may not be conditional.

Section 3.05 Deposit of Redemption or Purchase Price.

One Business Day prior to the redemption or purchase date, the Company will deposit with the Trustee or with the Paying Agent money sufficient to pay the redemption or purchase price of and accrued interest on all Notes to be redeemed or purchased on that date. The Trustee or the Paying Agent will promptly return to the Company any money deposited with the Trustee or the Paying Agent by the Company in excess of the amounts necessary to pay the redemption or purchase price of, and accrued interest on, all Notes to be redeemed or purchased.

If the Company complies with the provisions of the preceding paragraph, on and after the redemption or purchase date, interest will cease to accrue on the Notes or the portions of Notes called for redemption or purchase. If a Note is redeemed or purchased on or after an interest record date but on or prior to the related interest payment date, then any accrued and unpaid interest shall be paid to the Person in whose name such Note was registered at the close of business on such record date. If any Note called for redemption or purchase is not so paid upon surrender for redemption or purchase because of the failure of the Company to comply with the preceding paragraph, interest shall be paid on the unpaid principal, from the redemption or purchase date until such principal is paid, and to the extent lawful on any interest not paid on such unpaid principal, in each case at the rate provided in the Notes and in Section 4.01 hereof.

Section 3.06 Notes Redeemed or Purchased in Part.

Upon surrender of a Note that is redeemed or purchased in part, the Company will issue and, upon receipt of an Authentication Order, the Trustee will authenticate for the Holder at the expense of the Company a new Note equal in principal amount to the unredeemed or unpurchased portion of the Note surrendered.

Section 3.07 Optional Redemption.

(a) At any time prior to July 15, 2015, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under this Indenture at a redemption price of 112% of the principal amount, plus accrued and unpaid interest, if any, to the redemption date (subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date), with the net cash proceeds of one or more Public Equity Offerings of the Company; provided that:

(1) at least 65% of the aggregate principal amount of Notes originally issued under this Indenture (excluding Notes held by the Company and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and

(2) the redemption occurs within 90 days of the date of the closing of such Public Equity Offering, upon not less than 30 nor more than 60 days’ prior notice and otherwise in accordance with the procedures set forth in this Indenture.

Notice of any redemption upon any such Public Equity Offering may be given prior to the completion thereof, and any such redemption or notice may, at the Company’s discretion, be subject to one or more conditions precedent, including, but not limited to, completion of the related Public Equity Offering.

(b) At any time prior to July 15, 2015, the Company may also redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ prior notice, at a redemption price equal to 100% of the principal amount of Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the date of redemption, subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date.

(c) Except pursuant to the preceding two paragraphs, the Notes will not be redeemable at the Company’s option prior to July 15, 2015.

(d) On or after July 15, 2015, the Company may redeem all or a part of the Notes upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, on the Notes redeemed, to the applicable redemption date, if redeemed during the twelve-month period beginning on July 15 of the years indicated below, subject to the rights of holders of Notes on the relevant record date to receive interest on the relevant interest payment date:

Year	Percentage
2015		109.0	%
2016		104.5	%

Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on the Notes or portions thereof called for redemption on the applicable redemption date.

(e) Any redemption pursuant to this Section 3.07 shall be made pursuant to the provisions of Sections 3.01 through 3.06 hereof.

Section 3.08 Mandatory Redemption.

The Company is not required to make mandatory redemption or sinking fund payments with respect to the Notes.

Section 3.09 [Reserved]

Section 3.10 Offer to Purchase by Application of Excess Proceeds.

In the event that, pursuant to Section 4.10 hereof, the Company is required to commence an offer to all Holders to purchase Notes (an “Asset Sale Offer”), it will follow the procedures specified below.

The Asset Sale Offer shall be made to all Holders. The Asset Sale Offer will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business Days, except to the extent that a longer period is required by applicable law (the “Offer Period”). No later than three Business Days after the termination of the Offer Period (the “Purchase Date”), the Company will apply all Excess Proceeds (the “Offer Amount”) to the purchase of Notes or, if less than the Offer Amount has been tendered, all Notes and other Indebtedness tendered in response to the Asset Sale Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made.

If the Purchase Date is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender Notes pursuant to the Asset Sale Offer.

Upon the commencement of an Asset Sale Offer, the Company will send, by first class mail, a notice to the Trustee and each of the Holders, with a copy to the Trustee. The notice will contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Asset Sale Offer. The notice, which will govern the terms of the Asset Sale Offer, will state:

(1) that the Asset Sale Offer is being made pursuant to this Section 3.10 and Section 4.10 hereof and the length of time the Asset Sale Offer will remain open;

(2) the Offer Amount, the purchase price and the Purchase Date;

(3) that any Note not tendered or accepted for payment will continue to accrue interest;

(4) that, unless the Company defaults in making such payment, any Note accepted for payment pursuant to the Asset Sale Offer will cease to accrue interest after the Purchase Date;

(5) that Holders electing to have a Note purchased pursuant to an Asset Sale Offer may elect to have Notes purchased in denominations of $2,000 or an integral multiple of $1,000 in excess thereof;

(6) that Holders electing to have Notes purchased pursuant to any Asset Sale Offer will be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by book-entry transfer, to the Company, a Depositary, if appointed by the Company, or a Paying Agent at the address specified in the notice at least three days before the Purchase Date;

(7) that Holders will be entitled to withdraw their election if the Company, the Depositary or the Paying Agent, as the case may be, receives, not later than the expiration of the Offer Period, a facsimile transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement that such Holder is withdrawing his election to have such Note purchased;

(8) that, if the aggregate principal amount of Notes surrendered by holders thereof exceeds the Offer Amount, the Company will select the Notes to be purchased on a pro rata basis based on the principal amount of Notes surrendered (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or integral multiples of $1,000 in excess thereof, will be purchased); and

(9) that Holders whose Notes were purchased only in part will be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered (or transferred by book-entry transfer).

On or before the Purchase Date, the Company will, to the extent lawful, accept for payment, on a pro rata basis to the extent necessary, the Offer Amount of Notes or portions thereof tendered pursuant to the Asset Sale Offer, or if less than the Offer Amount has been tendered, all Notes tendered, and will deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating that such Notes or portions thereof were accepted for payment by the Company in accordance with the terms of this Section 3.10. The Company, the Depositary or the Paying Agent, as the case may be, will promptly (but in any case not later than five days after the Purchase Date) mail or deliver to each tendering Holder an amount equal to the purchase price of the Notes tendered by such Holder and accepted by the Company for purchase, and the Company will promptly issue a new Note, and the Trustee, upon written request from the Company in the form of an Authentication Order, will authenticate and mail or deliver (or cause to be transferred by book entry) such new Note to such Holder, in a principal amount equal to any unpurchased portion of the Note surrendered. Any Note not so accepted shall be promptly mailed or delivered by the Company to the Holder thereof. The Company will publicly announce the results of the Asset Sale Offer on the Purchase Date.

Other than as specifically provided in this Section 3.10, any purchase pursuant to this Section 3.10 shall be made pursuant to the provisions of Sections 3.01 through 3.06 hereof.

ARTICLE 4
COVENANTS

Section 4.01 Payment of Notes.

The Company will pay or cause to be paid the principal of and interest and premium, if any, on, the Notes on the dates and in the manner provided in the Notes. Principal, interest and premium, if any, will be considered paid on the date due if the Paying Agent, if other than the Company or a Subsidiary thereof, holds as of 10:00 a.m. Eastern Time on the due date money deposited by the Company in immediately available funds and designated for and sufficient to pay all principal, interest and premium, if any, then due.

The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal at the rate equal to 2% per annum in excess of the then applicable interest rate on the Notes to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (without regard to any applicable grace period) at the same rate to the extent lawful.

Section 4.02 Maintenance of Office or Agency.

The Company will maintain an office or agency (which may be an office of the Trustee or an affiliate of the Trustee, Registrar or co-registrar) where Notes may be surrendered for registration of transfer or for exchange and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served. The Company will give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency. If at any time the Company fails to maintain any such required office or agency or fails to furnish the Trustee with the address thereof, such presentations, surrenders, notices and demands may be made or served at the Corporate Trust Office of the Trustee.

The Company may also from time to time designate one or more other offices or agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency.

The Company hereby designates the Corporate Trust Office of the Trustee as one such office or agency of the Company in accordance with Section 2.03 hereof.

Section 4.03 Reports.

(a) Whether or not required by the rules and regulations of the SEC, so long as any Notes are outstanding, the Company will furnish to the Holders of Notes, within the time periods specified in the SEC’s rules and regulations:

(1) all quarterly and annual reports that would be required to be filed with the SEC on Forms 10-Q and 10-K if the Company were required to file such reports; and

(2) all current reports that would be required to be filed with the SEC on Form 8-K if the Company were required to file such reports.

(b) If the Company has designated any of its Subsidiaries as Royalty Transaction Subsidiaries, then at the time of the quarterly and annual reports referred to in Section 4.03(a)(1), the Company shall make available to the Holders (separately from such reports, if the Company so elects) a reasonably detailed presentation of the financial condition and results of operations of the Company and its Restricted Subsidiaries separate from the financial condition and results of operations of the Royalty Transaction Subsidiaries of the Company.

(c) All such reports will be prepared in all material respects in accordance with all of the rules and regulations applicable to such reports. Each annual report on Form 10-K will include a report on the Company’s consolidated financial statements by the Company’s certified independent accountants. In addition, the Company will file a copy of each of the reports referred to in clauses (a)(1) and (a)(2) above with the SEC for public availability within the time periods specified in the rules and regulations applicable to such reports (unless the SEC will not accept such filing) and will post the reports on its website within those time periods. The availability of the foregoing materials on the SEC’s EDGAR service (or any successor thereto) shall be deemed to satisfy the Company’s delivery obligation, it being understood that the Trustee shall have no obligation whatsoever to determine if such information has been posted.

(d) If, at any time, the Company is no longer subject to the periodic reporting requirements of the Exchange Act for any reason, the Company will nevertheless continue filing the reports specified in the preceding paragraphs of this covenant with the SEC within the time periods specified above unless the SEC will not accept such filings. The Company will not take any action for the purpose of causing the SEC not to accept any such filings. If, notwithstanding the foregoing, the SEC will not accept the Company’s filings for any reason, the Company will post the reports referred to in the preceding paragraphs on its website within the time periods that would apply if the Company were required to file those reports with the SEC.

(e) Furthermore, the Company agrees that, for so long as any Notes remain outstanding, it will furnish to the holders of Notes, beneficial owners of the Notes, bona fide prospective investors, securities analysts and market makers, upon their request, the reports described above and any other information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act.

(f) Without limiting any other obligations of the Company hereunder, with a view to making available to the holders of Notes the benefits of Rule 144 promulgated under the Securities Act or any other similar rule or regulation of the SEC that may at any time permit the holders to sell securities of the Company to the public without registration, until the first anniversary of the date of issuance of the Notes the Company shall:

(1) make and keep public information available, as those terms are understood and defined in Rule 144;

(2) file with the SEC all reports and other documents specified in applicable provisions of Rule 144 that are required of the Company under the Securities Act and the Exchange Act within the time periods specified in the SEC’s rules and regulations; and

(3) so long as the holders own Notes, promptly upon request, furnish to holders (i) a written statement by the Company that it has complied with the reporting requirements of the Securities Act and the Exchange Act as required for applicable provisions of Rule 144, (ii) a copy of the most recent annual or quarterly report of the Company and such other reports and documents filed by the Company with the Company and (iii) such other information as may be reasonably requested to permit the holders to sell such securities pursuant to Rule 144 without registration.

Section 4.04 Compliance Certificate.

(a) The Company shall deliver to the Trustee, within 90 days after the end of each fiscal year, commencing with the fiscal year ending December 31, 2012, an Officer’s Certificate stating that a review of the activities of the Company and its Subsidiaries during the preceding fiscal year has been made under the supervision of the signing Officers with a view to determining whether the Company has kept, observed, performed and fulfilled its obligations under this Indenture and the other Indenture Documents, and further stating, as to each such Officer signing such certificate, that to the best of his or her knowledge the Company has kept, observed, performed and fulfilled each and every covenant contained in this Indenture and the other Indenture Documents and is not in default in the performance or observance of any of the terms, provisions and conditions of this Indenture or the other Indenture Documents (or, if a Default or Event of Default has occurred, describing all such Defaults or Events of Default of which he or she may have knowledge and what action the Company is taking or proposes to take with respect thereto) and that to the best of his or her knowledge no event has occurred and remains in existence by reason of which payments on account of the principal of or interest, if any, on the Notes is prohibited or if such event has occurred, a description of the event and what action the Company is taking or proposes to take with respect thereto.

(b) So long as any of the Notes are outstanding, the Company will deliver to the Trustee, within 30 days of any Officer becoming aware of any Default or Event of Default, an Officer’s Certificate specifying such Default or Event of Default and what action the Company is taking or proposes to take with respect thereto.

Section 4.05 Taxes.

The Company will pay, and will cause each of its Subsidiaries to pay, prior to delinquency, all material taxes, assessments, and governmental levies except such as are contested in good faith and by appropriate proceedings or where the failure to effect such payment is not adverse in any material respect to the Holders of the Notes.

Section 4.06 Stay, Extension and Usury Laws.

The Company and each of the Guarantors covenants (to the extent that it may lawfully do so) that it will not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law wherever enacted, now or at any time hereafter in force, that may affect the covenants or the performance of this Indenture; and the Company and each of the Guarantors (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law has been enacted.

Section 4.07 Restricted Payments.

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly:

(1) declare or pay any dividend or make any other payment or distribution on account of the Company's or any of its Restricted Subsidiaries' Equity Interests (including, without limitation, any payment in connection with any merger or consolidation involving the Company or any of its Restricted Subsidiaries) (other than dividends or distributions payable in Equity Interests (other than Disqualified Stock) of the Company (it being understood for the avoidance of doubt that any right to purchase Equity Interests at a discount pursuant to an implementation of the Company's existing shelf shareholder rights plan shall be deemed to be a distribution payable solely in Equity Interests) and other than dividends or distributions payable to the Company or a Restricted Subsidiary of the Company);

(2) purchase, redeem or otherwise acquire or retire for value (including, without limitation, in connection with any merger or consolidation involving the Company) any Equity Interests of the Company or any direct or indirect parent of the Company;

(3) (x) make any principal payment on, or purchase, redeem, defease or otherwise acquire or retire for value (i) any Indebtedness of the Company or any Guarantor that is contractually subordinated to the Notes or to any Note Guarantee (excluding any intercompany Indebtedness between or among the Company and any of its Restricted Subsidiaries), (ii) the Permitted Convertible Notes or (iii) any other Indebtedness of the Company except those incurred pursuant to clauses (2), (3), (4), (6) (to the extent the Indebtedness under such clause (6) is owed to the Company or a Guarantor), (8), (10), (11), (13), (15) and (16) of Section 4.09(b) hereof (such Indebtedness described in the preceding clauses (i), (ii) and (iii) collectively, “Prepayment Restricted Indebtedness”), in each case prior to the Stated Maturity thereof, or (y) make any interest payment on any Prepayment Restricted Indebtedness, other than regularly scheduled interest; or

(4) make any Restricted Investment

(all such payments and other actions set forth in these clauses (1) through (4) above being collectively referred to as “Restricted Payments”),

unless, at the time of and after giving effect to such Restricted Payment:

(1) no Default or Event of Default has occurred and is continuing or would occur as a consequence of such Restricted Payment;

(2) the Company would, at the time of such Restricted Payment and after giving pro forma effect thereto as if such Restricted Payment had been made at the beginning of the applicable four-quarter period, have been permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.09(a) hereof; and

(3) such Restricted Payment, together with the aggregate amount of all other Restricted Payments made by the Company and its Restricted Subsidiaries since the date of this Indenture (excluding Restricted Payments permitted by clauses (2), (3), (4), (5), (6) and (9) of paragraph (b) of this Section 4.07), is less than the sum, without duplication, of

(A) 50% of the Consolidated Net Income of the Company for the period (taken as one accounting period) from July 1, 2012 to the end of the Company’s most recently ended fiscal quarter for which internal financial statements are available at the time of such Restricted Payment (or, if such Consolidated Net Income for such period is a deficit, less 100% of such deficit); plus

(B) 100% of the aggregate net cash proceeds received by the Company since the date of this Indenture as a contribution to its common equity capital or from the issue or sale of Equity Interests of the Company (other than Disqualified Stock) or from the issue or sale of convertible or exchangeable Disqualified Stock or convertible or exchangeable debt securities of the Company that have been converted into or exchanged for such Equity Interests (other than Equity Interests (or Disqualified Stock or debt securities) sold to a Subsidiary of the Company); plus

(C) to the extent that any Restricted Investment that was made after the date of this Indenture is sold for cash or otherwise liquidated or repaid for cash, the lesser of (i) the cash return of capital with respect to such Restricted Investment (less the cost of disposition, if any) and (ii) the initial amount of such Restricted Investment.

Notwithstanding the foregoing, (x) the aggregate amount of Restricted Payments of the type described in clauses (1) and (2) above made by the Company (other than if made pursuant to clauses (4), (5), (6) or (9) of paragraph (b) of this Section 4.07) shall not exceed $10.0 million, whether made pursuant to the Section 4.07(a) or 4.07(b) and (y) the Company may not make any Restricted Payments of the type described in clause (3) of paragraph (a) of this Section 4.07 except pursuant to clauses (3) and (10) of paragraph (b) of this Section 4.07.

(b) The provisions of Section 4.07(a) hereof will not prohibit:

(1) the payment of any dividend or the consummation of any irrevocable redemption within 60 days after the date of declaration of the dividend or giving of the redemption notice, as the case may be, if at the date of declaration or notice, the dividend or redemption payment would have complied with the provisions of this Indenture;

(2) [Reserved];

(3) the repayment, repurchase, redemption, defeasance or other acquisition or retirement for value of (A) Prepayment Restricted Indebtedness with the net cash proceeds from, or in exchange for, a substantially concurrent incurrence of Permitted Refinancing Indebtedness and (B) the Existing Subordinated Notes;

(4) the payment of any dividend (or, in the case of any partnership or limited liability company, any similar distribution) by a Restricted Subsidiary of the Company to the holders of its Equity Interests on a pro rata basis;

(5) the repurchase of Equity Interests deemed to occur upon the exercise of stock options to the extent such Equity Interests represent a portion of the exercise price of those stock options;

(6) the declaration and payment of customary regularly scheduled or accrued dividends to holders of any class or series of Disqualified Stock of the Company or any Restricted Subsidiary of the Company issued on or after the date hereof in compliance with Section 4.09;

(7) so long as no Default has occurred and is continuing or would be caused thereby, the declaration and payment of customary regularly scheduled or accrued dividends to holders of any class or series of Designated Preferred Stock (other than Disqualified Stock) issued after the date hereof; provided, however, that (A) for the most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date of issuance of such Designated Preferred Stock, after giving effect to such issuance (and the payment of dividends or distributions) on a pro forma basis (including a pro forma application of the net proceeds therefrom), the Company would have had a Fixed Charge Coverage Ratio of at least 2.00 to 1.00 and (B) the aggregate amount of dividends declared and paid pursuant to this clause (7) does not exceed the net cash proceeds actually received by the Company from any such sale of Designated Preferred Stock (other than Disqualified Stock) issued after the date hereof;

(8) the payment of dividends on the Company’s common stock of up to 6% per annum of the net proceeds received by the Company from any public offering of common stock of the Company;

(9) Restricted Payments by the Company or any Restricted Subsidiary to allow the payment in good faith of cash in lieu of the issuance of fractional shares upon the exercise of options or warrants or upon the conversion or exchange of Capital Stock of any such Person;

(10) the repurchase, redemption or other acquisition or retirement for value of any convertible notes in connection with a Change of Control pursuant to change of control provisions customary for convertible notes; provided that a Change of Control Offer has been made with respect to such Change of Control and all Notes tendered by Holders of the Notes in connection with such Change of Control Offer have been repurchased; and

(11) so long as no Default has occurred and is continuing or would be caused thereby, other Restricted Payments in an aggregate amount not to exceed $5.0 million since the date hereof.

The amount of all Restricted Payments (other than cash) will be the Fair Market Value on the date of the Restricted Payment of the asset(s) or securities proposed to be transferred or issued by the Company or such Restricted Subsidiary, as the case may be, pursuant to the Restricted Payment.

Section 4.08 Dividend and Other Payment Restrictions Affecting Subsidiaries.

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create or permit to exist or become effective any consensual encumbrance or restriction on the ability of any Restricted Subsidiary to:

(1) pay dividends or make any other distributions on its Capital Stock to the Company or any of its Restricted Subsidiaries, or with respect to any other interest or participation in, or measured by, its profits, or pay any Indebtedness owed to the Company or any of its Restricted Subsidiaries;

(2) make loans or advances to the Company or any of its Restricted Subsidiaries; or

(3) sell, lease or transfer any of its properties or assets to the Company or any of its Restricted Subsidiaries.

(b) The restrictions in Section 4.08(a) hereof will not apply to encumbrances or restrictions existing under or by reason of:

(1) agreements governing Existing Indebtedness as in effect on the date of this Indenture;

(2) the Indenture Documents;

(3) agreements or instruments governing Indebtedness, Disqualified Stock or Preferred Stock incurred in compliance with Section 4.09 hereof; provided that the encumbrances or restrictions contained therein, taken as a whole, are not materially more restrictive than those contained in the Indenture Documents, in each case, as then in effect;

(4) applicable law, rule, regulation or order, or pursuant to any agreement relating to a judgment, settlement, or compromise of any litigation, arbitration or other dispute;

(5) any instrument governing Indebtedness or Capital Stock of a Person acquired by the Company or any of its Restricted Subsidiaries as in effect at the time of such acquisition (except to the extent such Indebtedness or Capital Stock was incurred in connection with or in contemplation of such acquisition), which encumbrance or restriction is not applicable to any Person, or the properties or assets of any Person, other than the Person, or the property or assets of the Person, so acquired; provided that, in the case of Indebtedness, such Indebtedness was permitted by the terms of this Indenture to be incurred;

(6) customary non-assignment provisions in contracts and licenses entered into in the ordinary course of business;

(7) purchase money obligations for property acquired in the ordinary course of business and Capital Lease Obligations that impose restrictions on the property purchased or leased of the nature described in Section 4.08(a)(3) hereof;

(8) any agreement for the sale or other disposition of a Restricted Subsidiary that restricts distributions by that Restricted Subsidiary pending the sale or other disposition;

(9) Permitted Refinancing Indebtedness; provided that the restrictions contained in the agreements governing such Permitted Refinancing Indebtedness are not materially more restrictive, taken as a whole, than those contained in the agreements governing the Indebtedness being refinanced;

(10) Liens permitted to be incurred under the provisions of Section 4.12 hereof that limit the right of the debtor to dispose of the assets subject to such Liens;

(11) provisions limiting the disposition or distribution of assets or property in agreements governing Collaboration Transactions, agreements governing Royalty Transactions, intellectual property licenses, joint venture agreements, asset sale agreements, sale-leaseback agreements, stock sale agreements, and other similar agreements entered into with the approval of the Company’s Board of Directors, which limitation is applicable only to the assets that are the subject of such agreements;

(12) restrictions on cash or other deposits or net worth imposed by customers under contracts entered into in the ordinary course of business; and

(13) any amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings of any agreements specified in the preceding clauses (1) through (12); provided that the amendments, restatements, modifications, renewals, supplements, refundings, replacements or refinancings are not materially more restrictive, taken as a whole, with respect to such dividend and other payment restrictions than those contained in the applicable original agreement.

(c) For purposes of determining compliance with this Section 4.08, (i) the priority of any Preferred Stock in receiving dividends or liquidating distributions prior to dividends or liquidating distributions being paid on common stock shall not be deemed a restriction on the ability to make distributions on Capital Stock and (ii) the subordination of loans or advances made to the Company or a Restricted Subsidiary of the Company to other Indebtedness incurred by the Company or any such Restricted Subsidiary shall not be deemed a restriction on the ability to make loans or advances.

Section 4.09 Incurrence of Indebtedness and Issuance of Preferred Stock.

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, incur, issue, assume, guarantee or otherwise become directly or indirectly liable, contingently or otherwise, with respect to (collectively, “incur”) any Indebtedness (including Acquired Debt), and the Company will not issue any Disqualified Stock and will not permit any of its Restricted Subsidiaries to issue any shares of preferred stock; provided that the Company may incur Indebtedness (including Acquired Debt) or issue Disqualified Stock, and the Guarantors may incur Indebtedness (including Acquired Debt) or issue preferred stock, if the Fixed Charge Coverage Ratio for the Company’s most recently ended four full fiscal quarters for which internal financial statements are available immediately preceding the date on which such additional Indebtedness is incurred or such Disqualified Stock or such preferred stock is issued, as the case may be, would have been at least 2.00 to 1.00, determined on a pro forma basis (including a pro forma application of the net proceeds therefrom), as if the additional Indebtedness had been incurred or the Disqualified Stock or the preferred stock had been issued, as the case may be, at the beginning of such four-quarter period.

(b) The provisions of Section 4.09(a) hereof will not prohibit the incurrence of any of the following items of Indebtedness (collectively, “Permitted Debt”):

(1) the incurrence by the Company or any Guarantor of Indebtedness that is expressly subordinated to the prior payment in full in cash of all Obligations then due with respect to the Notes, in the case of the Company, or the Note Guarantee, in the case of a Guarantor, in an aggregate principal amount at any one time outstanding under this clause (1) not to exceed $35.0 million; provided that such subordinated Indebtedness has a final maturity date that is no earlier than one year after the date on which the Notes mature;

(2) the incurrence by the Company and its Restricted Subsidiaries of Existing Indebtedness;

(3) the incurrence by the Company and the Guarantors of Indebtedness represented by the Notes and the related Note Guarantees to be issued on the date hereof;

(4) the incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness, Disqualified Stock and Preferred Stock of Restricted Subsidiaries of the Company (including Capitalized Lease Obligations) to finance (whether prior to or within 270 days after) the purchase, lease, construction or improvement of property (real or personal) or equipment (whether through the direct purchase of assets or the Capital Stock of any Person owning such assets (but no other material assets)), including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this clause (4), in an aggregate principal amount not to exceed $5.0 million at any time outstanding;

(5) the incurrence by the Company or any of its Restricted Subsidiaries of Permitted Refinancing Indebtedness in exchange for, or the net proceeds of which are used to renew, refund, refinance, replace, defease or discharge any Indebtedness (other than intercompany Indebtedness) that was permitted by this Indenture to be incurred under Section 4.09(a) or clauses (2) (other than the Existing Subordinated Notes), (3), (4), (5), (14) and (17) of this Section 4.09(b);

(6) the incurrence by the Company or any of its Restricted Subsidiaries of intercompany Indebtedness between or among the Company and any of its Restricted Subsidiaries; provided, however, that:

(a) if the Company or any Guarantor is the obligor on such Indebtedness and the payee is not the Company or a Guarantor, such Indebtedness must be expressly subordinated to the prior payment in full in cash of all Obligations then due with respect to the Notes, in the case of the Company, or the Note Guarantee, in the case of a Guarantor; and

(b) (i) any subsequent issuance or transfer of Equity Interests that results in any such Indebtedness being held by a Person other than the Company or a Restricted Subsidiary of the Company and (ii) any sale or other transfer of any such Indebtedness to a Person that is not either the Company or a Restricted Subsidiary of the Company,

will be deemed, in each case, to constitute an incurrence of such Indebtedness by the Company or such Restricted Subsidiary, as the case may be, that was not permitted by this clause (6);

(7) the issuance by any of the Company’s Restricted Subsidiaries to the Company or to any of its Restricted Subsidiaries of shares of preferred stock; provided, however, that:

(a) any subsequent issuance or transfer of Equity Interests that results in any such preferred stock being held by a Person other than the Company or a Restricted Subsidiary of the Company; and

(b) any sale or other transfer of any such preferred stock to a Person that is not either the Company or a Restricted Subsidiary of the Company,

will be deemed, in each case, to constitute an issuance of such preferred stock by such Restricted Subsidiary that was not permitted by this clause (7);

(8) the incurrence by the Company or any of its Restricted Subsidiaries of Hedging Obligations in the ordinary course of business and not for speculative purposes;

(9) the guarantee by the Company or any of the Guarantors of Indebtedness of the Company or a Restricted Subsidiary of the Company that was permitted to be incurred by another provision of this Section 4.09; provided that if the Indebtedness being guaranteed is subordinated to the Notes, then the Guarantee shall be subordinated to the same extent as the Indebtedness guaranteed;

(10) the incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness in respect of workers’ compensation claims, self-insurance obligations, bankers’ acceptances, performance and surety bonds in the ordinary course of business;

(11) the incurrence by the Company or any of its Restricted Subsidiaries of Indebtedness arising from the honoring by a bank or other financial institution of a check, draft or similar instrument inadvertently drawn against insufficient funds, so long as such Indebtedness is covered within five business days;

(12) [Reserved];

(13) Collaboration Transactions and Royalty Transactions, to the extent involving an incurrence of Indebtedness;

(14) the incurrence by the Company or any of its Restricted Subsidiaries of Acquired Debt that is not incurred in connection with, or in contemplation of, the related acquisition; provided, however, that after giving effect to the related acquisition and the Incurrence of such Indebtedness either: (x) the Company would be permitted to Incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in the first paragraph of this covenant; or (y) the Fixed Charge Coverage Ratio would be greater than immediately prior to such acquisition;

(15) Indebtedness of Foreign Subsidiaries in an aggregate principal amount at any time outstanding not to exceed $2.5 million;

(16) Indebtedness of the Company or any of its Restricted Subsidiaries arising from agreements for adjustment of purchase price, earn-outs, contingent milestone payments or similar obligations in each case incurred in connection with (a) any disposition or acquisition of any business, asset, property or Subsidiary of the Company, to the extent the related disposition or acquisition is permitted under this Indenture, (b) any license arrangement pursuant to which the Company or any of its Restricted Subsidiaries acquires intellectual property or other rights useful in a Permitted Business; and

(17) the incurrence by the Company or any of the Guarantors of additional Indebtedness, Disqualified Stock or Preferred Stock of Restricted Subsidiaries of the Company in an aggregate principal amount at any time outstanding, including all Permitted Refinancing Indebtedness incurred to renew, refund, refinance, replace, defease or discharge any Indebtedness incurred pursuant to this clause (17), not to exceed $10.0 million.

Notwithstanding anything to the contrary in the foregoing, other than (x) Indebtedness incurred pursuant to clauses (2), (3), (4), (6) (to the extent the Indebtedness under such clause (6) is owed to the Company or a Guarantor), (8), (10), (11), (13), (15) and (16) of paragraph (b) of this Section 4.09 and (y) Indebtedness (i) that constitutes an issuance of convertible notes at a rate of interest no higher than 6.0% per annum, (ii) with an aggregate principal amount at any time outstanding not exceeding $100.0 million, (iii) with no amortization prior to Stated Maturity other than pursuant to customary change of control provisions, (iv) with a Stated Maturity that is no earlier than 91 days after the date on which the Notes mature and (v) the Net Proceeds of which are applied in accordance with Section 4.10 (the “Permitted Convertible Notes”), all Indebtedness incurred pursuant to this covenant shall be expressly subordinated to the prior payment in full in cash of all Obligations then due with respect to the Notes, will not provide for amortization prior to Stated Maturity and have a Stated Maturity that is no earlier than 91 days after the date on which the Notes mature.

The Company will not incur, and will not permit any Guarantor to incur, any Indebtedness (including Permitted Debt) that is contractually subordinated in right of payment to any other Indebtedness of the Company or such Guarantor unless such Indebtedness is also contractually subordinated in right of payment to the Notes and the applicable Note Guarantee on substantially identical terms.

For purposes of determining compliance with this Section 4.09, in the event that an item of proposed Indebtedness (or portion thereof) meets the criteria of more than one of the categories of Permitted Debt described in clauses (1) through (17) above or is entitled to be incurred pursuant to Section 4.09(a) hereof, the Company will be permitted to classify such item of Indebtedness (or portion thereof) on the date of its incurrence, or later reclassify all or a portion of such item of Indebtedness (or portion thereof), in any manner that complies with this Section 4.09. The accrual of interest, the accretion or amortization of original issue discount, the payment of interest on any Indebtedness in the form of additional Indebtedness with the same terms, the reclassification of preferred stock as Indebtedness due to a change in accounting principles, and the payment of dividends on Disqualified Stock in the form of additional shares of the same class of Disqualified Stock will not be deemed to be an incurrence of Indebtedness or an issuance of Disqualified Stock for purposes of this Section 4.09; provided, in each such case, that the amount of any such accrual, accretion or payment is included in Fixed Charges of the Company as accrued. Notwithstanding any other provision of this Section 4.09, the maximum amount of Indebtedness that the Company or any Restricted Subsidiary may incur pursuant to this Section 4.09 shall not be deemed to be exceeded solely as a result of fluctuations in exchange rates or currency values.

The amount of any Indebtedness outstanding as of any date will be:

(4) the accreted value of the Indebtedness, in the case of any Indebtedness issued with original issue discount;

(5) the principal amount of the Indebtedness, in the case of any other Indebtedness; and

(6) in respect of Indebtedness of another Person secured by a Lien on the assets of the specified Person, the lesser of:

(A) the Fair Market Value of such assets at the date of determination; and

(B) the amount of the Indebtedness of the other Person.

Section 4.10 Asset Sales.

The Company will not, and will not permit any of its Restricted Subsidiaries to, consummate an Asset Sale unless:

(1) the Company (or the Restricted Subsidiary, as the case may be) receives consideration at the time of the Asset Sale at least equal to the Fair Market Value of the assets or Equity Interests issued or sold or otherwise disposed of;

(2) in the case of Asset Sales other than those constituting Royalty Transactions, at least 75% of the consideration received in the Asset Sale by the Company or such Restricted Subsidiary is in the form of cash or Cash Equivalents; and

(3) if the Asset Sale would constitute a Change of Control, the Company shall have complied with all of its obligations under Section 4.15 hereof; provided that with respect to such Asset Sale, the Company shall not be required to make an Asset Sale Offer if a Change of Control Offer has been made.

For purposes of this provision, each of the following shall be deemed to be cash:

(a) any liabilities, as shown on the Company’s most recent consolidated balance sheet, of the Company or any Restricted Subsidiary (other than contingent liabilities and liabilities that are by their terms subordinated to the Notes or any Note Guarantee) that are assumed by the transferee of any such assets pursuant to a customary novation or assumption agreement that releases the Company or such Restricted Subsidiary from further liability or that are otherwise cancelled or terminated in connection with the transaction with such transferee;

(b) any securities, notes or other obligations received by the Company or any such Restricted Subsidiary from such transferee that are converted by the Company or such Restricted Subsidiary into cash within 90 days of the receipt thereof, to the extent of the cash received in that conversion; and

Within (i) 360 days after the receipt of any Net Proceeds (other than Applicable Net Royalty Proceeds) from an Asset Sale or Applicable Transaction described in clause (1) of the definition of Applicable Transactions or (ii) 540 days after receipt of any Net Proceeds from an Applicable Transaction described in clause (2) of the definition of Applicable Transaction, the Company (or the applicable Restricted Subsidiary, as the case may be) may apply such Net Proceeds:

(1) to acquire all or substantially all of the assets of, or any Capital Stock of, another Permitted Business, if, after giving effect to any such acquisition of Capital Stock, the Permitted Business is or becomes a Restricted Subsidiary of the Company;

(2) to make a capital expenditure in a Permitted Business;

(3) to license or acquire intellectual property and other rights in respect of technologies, drug candidates, drugs and assets related or incidental thereto; or

(4) to make research and development expenditures that in the Company’s good faith judgment are useful with respect to a Permitted Business.

Pending the final application of any Net Proceeds, the Company may invest the Net Proceeds in any manner that is not prohibited by this Indenture; provided that Net Proceeds attributable to an Asset Sale of assets, rights or Equity Interests that constitute Collateral may only be invested in Cash Equivalents that shall be held in an account in which the Collateral Agent has a first priority perfected security interest, subject to Permitted Liens, for its benefit, the benefit of the Trustee and the benefit of the Holders of the Notes in accordance with this Indenture and the Collateral Documents; provided further that a binding commitment to apply Net Proceeds as set forth in clause (1) or (3) above or a statement in an Officer’s Certificate that Net Proceeds will be applied as set forth in clause (4) above shall be treated as a permitted application of the Net Proceeds from the date of such commitment or statement so long as the Company or such Restricted Subsidiary enters into such commitment or makes such statement with the good faith expectation that such Net Proceeds will be applied in a manner consistent with such commitment or statement within 180 days of such commitment or statement and, in the event such commitment is later cancelled or terminated, or such statement withdrawn, for any reason before the Net Proceeds are applied in connection therewith, then such Net Proceeds shall constitute Excess Proceeds.

Any Net Proceeds from Asset Sales or Applicable Transactions that are not applied or invested as provided in the second paragraph of this Section 4.10 will constitute “Excess Proceeds” (it being understood that Net Proceeds from an Applicable Transaction described in clause (3) of the definition of Applicable Transactions shall constitute Excess Proceeds immediately upon receipt). Within five Business Days after the aggregate amount of Excess Proceeds exceeds $2.5 million, the Company will make an Asset Sale Offer to all Holders of Notes to purchase the maximum principal amount of Notes that may be purchased with the Excess Proceeds. The offer price in any Asset Sale Offer will be equal to 100% of the principal amount plus accrued and unpaid interest, if any, to the date of purchase, and will be payable in cash. If any Excess Proceeds remain after consummation of an Asset Sale Offer, the Company may use those Excess Proceeds for any purpose not otherwise prohibited by this Indenture. If the aggregate principal amount of Notes tendered into such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee will select the Notes to be purchased on a pro rata basis to the extent practicable, subject to the applicable procedures of the depository. Upon completion of each Asset Sale Offer, the amount of Excess Proceeds will be reset at zero.

The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent such laws and regulations are applicable in connection with each repurchase of Notes pursuant to an Asset Sale Offer. To the extent that the provisions of any securities laws or regulations conflict with the provisions of Section 3.10 hereof or this Section 4.10, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under Section 3.10 hereof or this Section 4.10 by virtue of such compliance.

Section 4.11 Transactions with Affiliates.

(a) The Company will not, and will not permit any of its Restricted Subsidiaries to, make any payment to, or sell, lease, transfer or otherwise dispose of any of its properties or assets to, or purchase any property or assets from, or enter into or make or amend any transaction, contract, agreement, understanding, loan, advance or guarantee with, or for the benefit of, any Affiliate of the Company (each, an “Affiliate Transaction”), unless:

(1) the Affiliate Transaction is on terms that are no less favorable to the Company or the relevant Restricted Subsidiary than those that would have been obtained in a comparable transaction by the Company or such Restricted Subsidiary with an unrelated Person; and

(2) the Company delivers to the Trustee:

(A) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of $5.0 million, a resolution of the Board of Directors of the Company set forth in an Officer’s Certificate certifying that such Affiliate Transaction complies with clause (1) of this Section 4.11(a) and that such Affiliate Transaction has been approved by a majority of the disinterested members of the Board of Directors of the Company; and

(B) with respect to any Affiliate Transaction or series of related Affiliate Transactions involving aggregate consideration in excess of $10.0 million, an opinion as to the fairness to the Company or such Restricted Subsidiary of such Affiliate Transaction from a financial point of view issued by an accounting, appraisal or investment banking firm of national standing, which opinion shall be conclusive evidence that the standard set forth in clause (1) of this Section 4.11(a) has been satisfied (whether or not such Affiliate Transaction or series of related Affiliate Transactions involve aggregate consideration in excess of $10.0 million).

(b) The following items will not be deemed to be Affiliate Transactions and, therefore, will not be subject to the provisions of Section 4.11(a) hereof:

(1) any employment agreement, employee benefit plan, officer or director indemnification agreement or any similar arrangement entered into by the Company or any of its Restricted Subsidiaries in the ordinary course of business and payments pursuant thereto;

(2) transactions between or among the Company and/or its Restricted Subsidiaries and transactions between or among the Company and/or Restricted Subsidiaries on the one hand and a Royalty Transaction Subsidiary on the other hand in connection with a Royalty Transaction;

(3) payment of reasonable directors’ fees to Persons who are not otherwise Affiliates of the Company;

(4) any issuance or sale of Equity Interests (other than Disqualified Stock) of the Company to Affiliates of the Company;

(5) Restricted Payments that do not violate the provisions of Section 4.07 hereof;

(6) pledges of Equity Interests of Royalty Transaction Subsidiaries; and

(7) loans or advances to employees in the ordinary course of business not to exceed $2.5 million in the aggregate at any one time outstanding.

Section 4.12 Liens.

The Company will not, and will not permit any of its Restricted Subsidiaries to, directly or indirectly, create, incur, assume or suffer to exist any Lien of any kind on any asset now owned or hereafter acquired, except Permitted Liens.

Section 4.13 Business Activities.

The Company will not, and will not permit any of its Restricted Subsidiaries to, engage in any business other than Permitted Businesses, except to such extent as would not be material to the Company and its Restricted Subsidiaries taken as a whole.

Section 4.14 Corporate Existence.

Subject to Article 5 hereof, the Company shall do or cause to be done all things necessary to preserve and keep in full force and effect:

(1) its corporate existence, and the corporate, partnership or other existence of each of its Subsidiaries, in accordance with the respective organizational documents (as the same may be amended from time to time) of the Company or any such Subsidiary; and

(2) the rights (charter and statutory), licenses and franchises of the Company and its Subsidiaries; provided, however, that the Company shall not be required to preserve any such right, license or franchise, or the corporate, partnership or other existence of any of its Subsidiaries, if the Board of Directors shall determine that the preservation thereof is no longer desirable in the conduct of the business of the Company and its Subsidiaries, taken as a whole, and that the loss thereof is not adverse in any material respect to the Holders of the Notes.

Section 4.15 Offer to Repurchase Upon Change of Control.

(a) The Company shall not consummate any Change of Control unless, no later than substantially concurrently with such consummation, each Holder will have the right to require the Company to repurchase all or any part of that Holder’s Notes pursuant to a Change of Control Offer.

(b) At least 30 days prior to a Change of Control, the Company will make an offer (a “Change of Control Offer”) to each Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of that Holder’s Notes at a purchase price in cash equal to 101% of the aggregate principal amount of Notes repurchased plus accrued and unpaid interest, if any, on the Notes repurchased to the date of purchase, subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date (the “Change of Control Payment”).

(c) At least 30 days prior to a Change of Control, the Company will mail a notice to each Holder describing the transaction or transactions that constitute the Change of Control and stating:

(1) that the Change of Control Offer is being made pursuant to this Section 4.15 and that all Notes tendered will be accepted for payment;

(2) the purchase price and the purchase date, which shall be no earlier than 15 days prior to and no later than the date on which such Change of Control is consummated; provided that if the Change of Control Payment Date is the date of consummation of the Change of Control, the payment for the repurchase of Notes will be made at a time no later than substantially concurrently with the consummation of such Change of Control (the “Change of Control Payment Date”);

(3) that any Note not tendered will continue to accrue interest;

(4) that, unless the Company defaults in the payment of the Change of Control Payment, all Notes accepted for payment pursuant to the Change of Control Offer will cease to accrue interest after the Change of Control Payment Date;

(5) that Holders electing to have any Notes purchased pursuant to a Change of Control Offer will be required to surrender the Notes, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by book-entry transfer, to the Paying Agent at the address specified in the notice prior to the close of business on the third Business Day preceding the Change of Control Payment Date;

(6) that Holders will be entitled to withdraw their election if the Paying Agent receives, not later than the close of business on the second Business Day preceding the Change of Control Payment Date, a facsimile transmission or letter setting forth the name of the Holder, the principal amount of Notes delivered for purchase, and a statement that such Holder is withdrawing his election to have the Notes purchased; and

(7) that Holders whose Notes are being purchased only in part will be issued new Notes equal in principal amount to the unpurchased portion of the Notes surrendered, which unpurchased portion must be equal to $2,000 in principal amount or an integral multiple of $1,000 in excess thereof.

(d) A Change of Control Offer may be conditioned upon the occurrence of the related Change of Control.

(e) On the Change of Control Payment Date, the Company will, to the extent lawful:

(1) accept for payment all Notes or portions of Notes properly tendered pursuant to the Change of Control Offer;

(2) deposit with the Paying Agent an amount equal to the Change of Control Payment in respect of all Notes or portions of Notes properly tendered; and

(3) deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating the aggregate principal amount of Notes or portions of Notes being purchased by the Company.

The Paying Agent will promptly mail to each Holder of Notes properly tendered the Change of Control Payment for such Notes, and the Trustee will promptly authenticate and mail (or cause to be transferred by book entry) to each Holder a new Note equal in principal amount to any unpurchased portion of the Notes surrendered, if any; provided that any such new Notes will be in minimum denominations of $2,000 and integral multiples of $1,000 in excess thereof. The Company will publicly announce the results of the Change of Control Offer on or as soon as practicable after the Change of Control Payment Date.

(f) Notwithstanding anything to the contrary in this Section 4.15, the Company will not be required to make a Change of Control Offer upon a Change of Control if (1) a third party makes the Change of Control Offer in the manner, at the times and otherwise in compliance with the requirements set forth in this Section 4.15 and purchases all Notes properly tendered and not withdrawn under the Change of Control Offer, or (2) notice of redemption for all of the Notes has been given pursuant to Section 3.07 hereof, unless and until there is a default in payment of the applicable redemption price.

(g) The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent those laws and regulations are applicable in connection with the repurchase of the Notes as a result of a Change in Control. To the extent that the provisions of any securities laws or regulations conflict with the provisions of this Section 4.15 hereof, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under this Section 4.15 by virtue of such compliance.

Section 4.16 Royalty Transactions Repurchase Offer.

Within five Business Days of the receipt of any Net Proceeds of any Royalty Transaction newly entered into by the Company or any of its Restricted Subsidiaries following the date hereof, the Company shall mail a notice describing the applicable Royalty Transaction and offering to repurchase Notes (such offer, a “Royalty Transactions Repurchase Offer”) in an amount up to 25% of such Net Proceeds, at a price of 100% of the principal amount, plus accrued and unpaid interest, if any, to the Repurchase Date (subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date). Once the aggregate amount of repurchases completed pursuant to Royalty Transactions Repurchase Offers has reached $25.0 million, the Company’s obligation to make Royalty Transactions Repurchase Offers will terminate and be of no further force or effect. If any Royalty Transactions Repurchase Offer would otherwise result in the aggregate amount of all completed repurchases exceeding $25.0 million, the amount to be repurchased shall be reduced by an amount such that the total of all completed repurchases including pursuant to such Royalty Transactions Repurchase Offer equals $25.0 million.

The Royalty Transactions Repurchase Offer shall be made to all Holders and will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business Days, except to the extent that a longer period is required by applicable law (the “Royalty Transactions Repurchase Offer Period”). No later than three Business Days after the termination of the Royalty Transactions Repurchase Offer Period (the “Repurchase Date”), the Company will apply all Applicable Net Royalty Proceeds (the “Royalty Transactions Repurchase Offer Amount”) to the purchase of Notes or, if less than the Royalty Transactions Repurchase Offer Amount has been tendered, all Notes tendered in response to the Royalty Transactions Repurchase Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made.

If the Repurchase Date is on or after an interest record date and on or before the related interest payment date, any accrued and unpaid interest will be paid to the Person in whose name a Note is registered at the close of business on such record date, and no additional interest will be payable to Holders who tender Notes pursuant to the Royalty Transactions Repurchase Offer.

Upon the commencement of a Royalty Transactions Repurchase Offer, the Company will send, by first class mail, a notice to the Trustee and each of the Holders, with a copy to the Trustee. The notice will contain all instructions and materials necessary to enable such Holders to tender Notes pursuant to the Royalty Transactions Repurchase Offer. The notice, which will govern the terms of the Royalty Transactions Repurchase Offer, will state:

(1) that the Royalty Transactions Repurchase Offer is being made pursuant to this Section 4.16 and the length of time the Royalty Transactions Repurchase Offer will remain open;

(2) the Royalty Transactions Repurchase Offer Amount, the purchase price and the Repurchase Date;

(3) that any Note not tendered or accepted for payment will continue to accrue interest;

(4) that, unless the Company defaults in making such payment, any Note accepted for payment pursuant to the Royalty Transactions Repurchase Offer will cease to accrue interest after the Repurchase Date;

(5) that Holders electing to have a Note purchased pursuant to a Royalty Transactions Repurchase Offer may elect to have Notes purchased in denominations of $2,000, or integral multiples of $1,000 in excess thereof;

(6) that Holders electing to have Notes purchased pursuant to any Royalty Transactions Repurchase Offer will be required to surrender the Note, with the form entitled “Option of Holder to Elect Purchase” attached to the Notes completed, or transfer by book-entry transfer, to the Company, a Depositary, if appointed by the Company, or a Paying Agent at the address specified in the notice at least three days before the Repurchase Date;

(7) that Holders will be entitled to withdraw their election if the Company, the Depositary or the Paying Agent, as the case may be, receives, not later than the expiration of the Royalty Transactions Repurchase Offer Period, a facsimile transmission or letter setting forth the name of the Holder, the principal amount of the Note the Holder delivered for purchase and a statement that such Holder is withdrawing his election to have such Note purchased;

(8) that, if the aggregate principal amount of Notes surrendered by holders thereof exceeds the Royalty Transactions Repurchase Offer Amount, the Trustee will select the Notes to be purchased on a pro rata basis to the extent practicable, subject to applicable procedures of the Depositary (with such adjustments as may be deemed appropriate by the Company so that only Notes in denominations of $2,000, or integral multiples of $1,000 in excess thereof, will be purchased); and

On or before the Repurchase Date, the Company will, to the extent lawful, accept for payment, on a pro rata basis to the extent necessary, the Royalty Transactions Repurchase Offer Amount of Notes or portions thereof tendered pursuant to the Royalty Transactions Repurchase Offer, or if less than the Royalty Transactions Repurchase Offer Amount has been tendered, all Notes tendered, and will deliver or cause to be delivered to the Trustee the Notes properly accepted together with an Officer’s Certificate stating that such Notes or portions thereof were accepted for payment by the Company in accordance with the terms of this Section 4.16. The Company, the Depositary or the Paying Agent, as the case may be, will promptly (but in any case not later than five days after the Repurchase Date) mail or deliver to each tendering Holder an amount equal to the purchase price of the Notes tendered by such Holder and accepted by the Company for purchase, and the Company will promptly issue a new Note, and the Trustee, upon written request from the Company in the form of an Authentication Order, will authenticate and mail or deliver (or cause to be transferred by book entry) such new Note to such Holder, in a principal amount equal to any unpurchased portion of the Note surrendered. Any Note not so accepted shall be promptly mailed or delivered by the Company to the Holder thereof. The Company will publicly announce the results of the Royalty Transactions Repurchase Offer on the Repurchase Date.

The Company will comply with the requirements of Rule 14e-1 under the Exchange Act and any other securities laws and regulations thereunder to the extent such laws and regulations are applicable in connection with each repurchase of Notes pursuant to a Royalty Transactions Repurchase Offer. To the extent that the provisions of any securities laws or regulations conflict with the provisions of the Section 4.16, the Company will comply with the applicable securities laws and regulations and will not be deemed to have breached its obligations under Section 4.16 hereof by virtue of such compliance.

Section 4.17 Additional Note Guarantees.

If (x) the Company or any of its Restricted Subsidiaries acquires or creates another Domestic Restricted Subsidiary after the date hereof, (y) the Company acquires or creates another Foreign Subsidiary that is a Restricted Subsidiary and a Guarantee by such Subsidiary would not (i) result in material adverse tax consequences under Section 956 of the Internal Revenue Code or any successor provision thereto or (ii) is permitted under applicable law, or (z) the total assets or revenues of Nektar Therapeutics UK Limited constitute more than 1.0% of the consolidated total assets or consolidated revenues, respectively, of the Company and a Guarantee by it would not result in material adverse tax consequences under Section 956 of the Internal Revenue Code or any successor provision thereto, then that newly acquired or created Domestic Restricted Subsidiary, Foreign Subsidiary or Nektar Therapeutics UK Limited, as applicable, will within 10 Business Days of the date on which it was acquired or created or, in the case of Nektar Therapeutics UK Limited, the date on which its total assets or revenues exceed the threshold set forth in clause (z) above, (i) execute and deliver to the Trustee a supplemental indenture substantially in the form attached hereto as Exhibit E pursuant to which such Domestic Restricted Subsidiary, Foreign Subsidiary or Nektar UK Limited will Guarantee the Notes, (ii) execute and deliver to the Collateral Agent joinder agreements or other similar agreements with respect the applicable Collateral Documents (or foreign equivalents, subject to customary practice in the applicable jurisdiction) and (iii) deliver to the Trustee an Opinion of Counsel that such supplemental indenture and other documents required to be delivered pursuant to clause (ii) above have been duly authorized, executed and delivered and constitute legally valid and binding and enforceable obligations (subject to customary qualifications and exceptions). Notwithstanding anything to the contrary in the foregoing, if any Restricted Subsidiary that is a Foreign Subsidiary owns any intellectual property that is material to the Company’s business, such Foreign Subsidiary shall become a Guarantor in accordance with the requirements of this Section 4.17 within 10 Business Days of the acquisition of such intellectual property.

Section 4.18 Designation of Royalty Transaction Subsidiaries.

The Board of Directors of the Company may designate any newly-formed Subsidiary to be a Royalty Transaction Subsidiary in connection with, or in contemplation of, a Royalty Transaction.

Any designation of a Subsidiary of the Company as a Royalty Transaction Subsidiary will be evidenced to the Trustee by filing with the Trustee a certified copy of a resolution of the Board of Directors giving effect to such designation and an Officer’s Certificate certifying that such designation complied with the requirements specified in the definition of “Royalty Transaction Subsidiary.” If, at any time, any Royalty Transaction Subsidiary would fail to meet the requirements of a Royalty Transaction Subsidiary, it will thereafter cease to be a Royalty Transaction Subsidiary for purposes of this Indenture and any Indebtedness of such Subsidiary will be deemed to be incurred by a Restricted Subsidiary of the Company as of such date and, if such Indebtedness is not permitted to be incurred as of such date under Section 4.09 hereof, the Company will be in default of such Section.

Section 4.19 Maintenance of Property and Insurance.

The Company will, and will cause each of its Restricted Subsidiaries to, keep all property material to the operation of the business of the Company and its Restricted Subsidiaries, taken as a whole, in good working order and condition in all material respects, ordinary wear and tear and casualty loss excepted; provided that the Company shall not be obligated to comply with the foregoing provisions of this Section 4.19 to the extent that the failure to do so is not adverse in any material respect to the Holders of the Notes.

The Company will, and will cause each of its Restricted Subsidiaries to, (i) maintain with one or more insurance companies of national standing insurance on all property material to the operation of the business of the Company and its Restricted Subsidiaries, taken as a whole, in at least such amounts and against at least such risks as are determined by the Company in good faith to be reasonable and prudent, taking into account the risks that are usually insured against in the same general area by companies engaged in the same or similar businesses (in each case, after giving effect to any self-insurance determined by the Company to be reasonable and prudent, taking into account the practices of similarly situated Persons engaged in the same or similar businesses), and (ii) deliver copies of all such insurance policies to the Collateral Agent with an endorsement naming the Collateral Agent as a loss payee or additional insured, as appropriate.

Section 4.20 Real Estate Mortgages and Filings.

With respect to any real property owned in fee simple by the Company or any Guarantor, where such owned real property has a Fair Market Value in excess of $5.0 million located in the United States (the “Premises”), the Company or such Guarantor shall use commercially reasonable efforts to, within 90 days of the later of (x) the date hereof and (y) the acquisition thereof, deliver to the Collateral Agent:

(1) as mortgagee, for its benefit, the benefit of the Trustee and the benefit of the Holders of the Notes, fully executed counterparts of Mortgages, duly executed by the Company or the applicable Guarantor, as the case may be, and corresponding UCC fixture filings, together with evidence of the completion (or satisfactory arrangements for the completion) of all recordings and filings of such Mortgages and corresponding UCC fixture filings as may be necessary to create a valid, perfected Lien, subject to Permitted Liens, against the Premises purported to be covered thereby;

(2) (lenders’ or mortgagee’s title insurance policies (“Lenders’ Policies”) issued to the Collateral Agent in an amount equal to 100% of the Fair Market Value of the Premises purported to be covered by the related Mortgages, insuring Collateral Agent’s interest as mortgagee in such property, which interests are created by the Mortgages and are free and clear of all Liens, defects and encumbrances other than Permitted Liens, and such policies shall also include, to the extent commercially available and issued at reasonable and ordinary rates, customary endorsements and shall be accompanied by evidence of the payment in full (or satisfactory arrangements for the payment in full) of all premiums thereon; in furtherance of satisfaction of the delivery obligations in this clause (2), Company shall deliver to the title insurer issuing the Lenders’ Policies such customary affidavits, certificates, instruments of indemnification and other items (including a so-called “gap” indemnification) as shall be reasonably required of the title insurer to issue the Lenders’ Policies and endorsements referenced herein with respect to each of the Premises;

(3) (i) updated surveys of such Premises, or (ii) the most recent surveys of such Premises, together with either (a) an updated survey certification in favor of the Collateral Agent from the a licensed surveyor stating that, based on a visual inspection of the applicable real property and the actual knowledge of the surveyor, there appear to have been no change in the facts depicted in the survey or (b) an affidavit and/or indemnity from the Company or the applicable Guarantor, as the case may be, stating that, to its actual knowledge, it has not caused or permitted any change in the facts depicted in the survey, other than, in each case, changes that do not materially adversely affect the use by the Company or such Guarantor, as applicable, of such Premises for the Company or such Guarantor’s business as so conducted, or intended to be conducted, at such Premises; and in each case, in form and substance as may be reasonably requested by the title insurer issuing the Lenders’ Policies so that it may remove the standard survey and survey-related exceptions from such policies and issue the survey, survey-related, and other endorsements required pursuant to clause (2) above to such policy;

(4) Opinions of Counsel in the jurisdictions where such Premises are located, in each case that such Mortgage (i) has been duly authorized, executed and delivered by the Company or such Guarantor, (ii) constitutes a legal, valid and binding obligation of the Company or such Guarantor, enforceable against the applicable mortgagor in accordance with its terms, and (iii) creates a valid, perfected Lien on the Premises purported to be covered thereby; and

(5) In the event any such Premises is located in a special flood hazard area, evidence of flood insurance.

Section 4.21 Minimum Cash Balance.

The Company will not permit the aggregate amount of unrestricted cash and Cash Equivalents of the Company and its Restricted Subsidiaries as of the last day of each of the Company’s two most recently ended fiscal quarters, as shown on the consolidated balance sheets of the Company set forth in each of the Company’s two most recently filed periodic reports filed with the SEC, to be less than the relevant amount set forth opposite such fiscal quarter below:

Fiscal Quarter Ending	Amount
On or prior to June 30, 2013	$	0
Sept 30, 2013 to and including June 30, 2014	$	0
Sept 30, 2014 to and including June 30, 2015	$	0
Sept 30, 2015 to and including June 30, 2016	$	25.0 million
Sept 30, 2016 to and including June 30, 2017	$	25.0 million

Section 4.22 Cash Reserve Account.

Upon consummation of the offering of the Notes, the Company will enter into an Escrow and Security Agreement (the “Escrow Agreement”), to be dated as of the date hereof, with the Collateral Agent and Wells Fargo Bank, National Association, as escrow agent (the “Escrow Agent”), pursuant to which the Company will deposit $25.0 million of the proceeds of the Notes into a segregated escrow account (the “Cash Reserve Account”). The Company shall maintain in the Cash Reserve Account at all times during the period set forth below, the amount set forth below opposite such twelve-month period ending June 30 of the following years:

Year		Amount
2013	$	25.0 million
2014	$	25.0 million
2015	$	25.0 million

If an Event of Default has occurred and is continuing, the Trustee may, or at the direction of the holders of at least 30% of the aggregate outstanding principal amount of the Notes, shall, apply any amounts on deposit in the Cash Reserve Account to any remaining interest payments on the Notes in inverse order of scheduled payment. Any scheduled interest payments (or portion thereof) so paid shall no longer be due, on the scheduled date therefor or otherwise. Notwithstanding anything to the contrary herein, with respect to any redemption of the Notes occurring after the application of such amounts, the otherwise applicable redemption price shall be reduced by the pro rata amount of prepaid interest from interest payment dates later than the applicable redemption allocable to the amount of Notes being redeemed. All amounts in the Cash Reserve Account shall be released to the Company on July 20, 2015, after which such amounts shall not be subject to any restrictions on use other than compliance generally with the applicable covenants under this Indenture.

ARTICLE 5
SUCCESSORS

Section 5.01 Merger, Consolidation, or Sale of Assets.

The Company will not, directly or indirectly: (a) consolidate or merge with or into another Person (whether or not the Company is the surviving corporation); or (b) sell, assign, transfer, convey or otherwise dispose of all or substantially all of the properties or assets of the Company and its Restricted Subsidiaries taken as a whole, in one or more related transactions (other than any Royalty Transaction), to another Person, unless:

(1) the Company is the surviving corporation or the Person to which such sale, assignment, transfer, conveyance or other disposition has been made assumes all the obligations of the Company under the Indenture Documents pursuant to a supplemental indenture delivered to the Trustee, substantially in the form of Exhibit E hereto;

(2) immediately after such transaction, no Default or Event of Default exists;

(3) the Company or the Person to which such sale, assignment, transfer, conveyance or other disposition has been made would, on the date of such transaction after giving pro forma effect thereto and any related financing transactions as if the same had occurred at the beginning of the applicable four-quarter period, be permitted to incur at least $1.00 of additional Indebtedness pursuant to the Fixed Charge Coverage Ratio test set forth in Section 4.09(a) hereof, or after so giving pro forma effect, the Fixed Charge Coverage Ratio would be greater than immediately prior to so giving pro forma effect; and

(4) if the applicable transaction would constitute a Change of Control, the Company shall have complied with all of its obligations under Section 4.15.

In addition, the Company will not, directly or indirectly, lease all or substantially all of the properties and assets of it and its Restricted Subsidiaries taken as a whole, in one or more related transactions, to any other Person.

Clauses (2) and (3) of the prior paragraph will not apply to:

(i) a merger of the Company with an Affiliate solely for the purpose of reincorporating the Company in another jurisdiction; or

(ii) any consolidation or merger, or any sale, assignment, transfer, conveyance, lease or other disposition of assets between or among the Company and the Guarantors.

Section 5.02 Successor Corporation Substituted.

Upon any consolidation or merger, or any sale, assignment, transfer, lease, conveyance or other disposition of all or substantially all of the properties or assets of the Company in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof, the successor Person formed by such consolidation or into or with which the Company is merged or to which such sale, assignment, transfer, lease, conveyance or other disposition is made shall succeed to, and be substituted for (so that from and after the date of such consolidation, merger, sale, assignment, transfer, lease, conveyance or other disposition, the provisions of this Indenture referring to the “Company” shall refer instead to the successor Person and not to the Company), and may exercise every right and power of the Company under this Indenture with the same effect as if such successor Person had been named as the Company herein; provided, however, that the predecessor Company shall not be relieved from the obligation to pay the principal of and interest on the Notes except in the case of a sale of all of the Company’s assets in a transaction that is subject to, and that complies with the provisions of, Section 5.01 hereof.

ARTICLE 6
DEFAULTS AND REMEDIES

Section 6.01 Events of Default.

Each of the following is an “Event of Default”:

(1) default for 10 days in the payment when due of interest on the Notes;

(2) default in the payment when due (at maturity, upon redemption or otherwise) of the principal of, or premium, if any, on, the Notes;

(3) (i) failure by the Company or any of its Restricted Subsidiaries to comply with the provisions of Sections 2.06(b)(4), 3.10, 4.10, 4.15 or 5.01 hereof or (ii) failure by the Company or any of its Restricted Subsidiaries to comply with the provisions of Section 4.03(f) hereof and such default continues for a period of 20 days;

(4) failure by the Company or any of its Restricted Subsidiaries for 60 days after notice to the Company by the Trustee or the holders of at least 25% in aggregate principal amount of the Notes then outstanding voting as a single class to comply with any of the other agreements in the Indenture Documents;

(5) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness (other than Indebtedness owed to the Company or any Restricted Subsidiary of the Company) for money borrowed by the Company or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), whether such Indebtedness or Guarantee now exists, or is created after the date of this Indenture, if that default:

(A) is caused by a failure to pay such Indebtedness at final maturity prior to the expiration of the grace period provided in such Indebtedness (a “Payment Default”);

(B) results in the acceleration of such Indebtedness prior to its express maturity; or

(C) permits the acceleration of such Indebtedness prior to its express maturity and has continued without cure or waiver for a period of 30 days from the date on which such acceleration was first permitted,

and, in each case, the principal amount of any such Indebtedness, together with the principal amount of any other such Indebtedness under which there has been a Payment Default or the maturity of which has been so accelerated, aggregates $15.0 million or more;

(6) failure by the Company or any of its Restricted Subsidiaries to pay final judgments entered by a court or courts of competent jurisdiction aggregating in excess of $15.0 million (net of any amounts that a reputable and creditworthy insurance company has acknowledged liability for in writing), which judgments are not paid, discharged or stayed within a period of 60 days of the entry thereof;

(7) the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary pursuant to or within the meaning of Bankruptcy Law (provided that such events with respect to a Restricted Subsidiary that is not a Significant Subsidiary shall nonetheless constitute an Event of Default to the extent such events have had or would reasonably be expected to result in a Material Adverse Effect):

(A) commences a voluntary case,

(B) consents to the entry of an order for relief against it in an involuntary case,

(D) makes a general assignment for the benefit of its creditors, or

(E) generally is not paying its debts as they become due;

(8) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that (provided that such events with respect to a Restricted Subsidiary that is not a Significant Subsidiary shall nonetheless constitute an Event of Default to the extent such events have had or would reasonably be expected to result in a Material Adverse Effect):

(A) is for relief against the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary in an involuntary case;

(B) appoints a custodian of the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary or for all or substantially all of the property of the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary; or

(C) orders the liquidation of the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary;

and the order or decree remains unstayed and in effect for 60 consecutive days; or

(9) except as permitted by this Indenture and the Collateral Documents, with respect to any assets or property having a Fair Market Value in excess of $2.5 million, individually or in the aggregate, that constitutes or, under this Indenture or the Collateral Documents is required to constitute, Collateral, (a) any of the Collateral Documents shall for any reason cease to be in full force and effect in all material respects, or the Company or a Guarantor shall so assert, or (b) any security interest created, or purported to be created, by any of the Collateral Documents shall cease to be enforceable and of the same effect and priority purported to be created thereby, except in each case solely as a result of the Collateral Agent taking or refraining from taking any action in its sole control; and

(10) except as permitted by this Indenture, any Note Guarantee is held in any judicial proceeding to be unenforceable or invalid or ceases for any reason to be in full force and effect, or any Guarantor, or any Person acting on behalf of any Guarantor, denies or disaffirms its obligations under its Note Guarantee.

Section 6.02 Acceleration.

In the case of an Event of Default specified in clause (7) or (8) of Section 6.01 hereof, with respect to the Company, any Restricted Subsidiary of the Company that is a Significant Subsidiary or any group of Restricted Subsidiaries of the Company that, taken together, would constitute a Significant Subsidiary, all outstanding Notes will become due and payable immediately without further action or notice. If any other Event of Default occurs and is continuing, the Trustee or the Holders of at least 30% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately.

Upon any such declaration, the Notes shall become due and payable immediately.

The Holders of a majority in aggregate principal amount of the then outstanding Notes by written notice to the Trustee may, on behalf of all of the Holders, rescind an acceleration and its consequences, if the rescission would not conflict with any judgment or decree and if all existing Events of Default (except nonpayment of principal, interest or premium that has become due solely because of the acceleration) have been cured or waived.

Section 6.03 Other Remedies.

If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy to collect the payment of principal, premium, if any, and interest on the Notes or to enforce the performance of any provision of the Notes or this Indenture.

The Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder of a Note in exercising any right or remedy accruing upon an Event of Default shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. All remedies are cumulative to the extent permitted by law.

Section 6.04 Waiver of Past Defaults.

Holders of not less than a majority in aggregate principal amount of the then outstanding Notes by notice to the Trustee may on behalf of the Holders of all of the Notes waive an existing Default or Event of Default and its consequences hereunder, except a continuing Default or Event of Default in the payment of the principal of, premium, if any, or interest on, the Notes (including in connection with an offer to purchase); provided, however, that the Holders of a majority in aggregate principal amount of the then outstanding Notes may rescind an acceleration and its consequences, including any related payment default that resulted from such acceleration. Upon any such waiver, such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver shall extend to any subsequent or other Default or impair any right consequent thereon.

Section 6.05 Control by Majority.

Holders of a majority in aggregate principal amount of the then outstanding Notes may direct the time, method and place of conducting any proceeding for exercising any remedy available to the Trustee or exercising any trust or power conferred on it. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture that the Trustee determines may be unduly prejudicial to the rights of other Holders of Notes or that may involve the Trustee in personal liability.

Section 6.06 Limitation on Suits.

A Holder may pursue a remedy with respect to this Indenture or the Notes only if:

(1) such Holder gives to the Trustee written notice that an Event of Default is continuing;

(2) Holders of at least 30% in aggregate principal amount of the then outstanding Notes make a written request to the Trustee to pursue the remedy;

(3) such Holder or Holders offer and, if requested, provide to the Trustee security or indemnity satisfactory to the Trustee against any loss, liability or expense;

(4) the Trustee does not comply with the request within 60 days after receipt of the request and the offer of security or indemnity; and

(5) during such 60-day period, Holders of a majority in aggregate principal amount of the then outstanding Notes do not give the Trustee a direction inconsistent with such request.

A Holder of a Note may not use this Indenture to prejudice the rights of another Holder of a Note or to obtain a preference or priority over another Holder of a Note.

Section 6.07 Rights of Holders of Notes to Receive Payment.

Notwithstanding any other provision of this Indenture, the right of any Holder of a Note to receive payment of principal, premium, if any, and interest on the Note, on or after the respective due dates expressed in the Note (including in connection with an offer to purchase), or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such Holder.

Section 6.08 Collection Suit by Trustee.

If an Event of Default specified in Section 6.01(1) or (2) hereof occurs and is continuing, the Trustee is authorized to recover judgment in its own name and as trustee of an express trust against the Company for the whole amount of principal of, premium, if any, and interest remaining unpaid on, the Notes and interest on overdue principal and, to the extent lawful, interest and such further amount as shall be sufficient to cover the costs and expenses of collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel.

Section 6.09 Trustee May File Proofs of Claim.

The Trustee is authorized to file such proofs of claim and other papers or documents as may be necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and the Holders of the Notes allowed in any judicial proceedings relative to the Company (or any other obligor upon the Notes), its creditors or its property and shall be entitled and empowered to collect, receive and distribute any money or other property payable or deliverable on any such claims and any custodian in any such judicial proceeding is hereby authorized by each Holder to make such payments to the Trustee, and in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof. To the extent that the payment of any such compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 7.07 hereof out of the estate in any such proceeding, shall be denied for any reason, payment of the same shall be secured by a Lien on, and shall be paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding whether in liquidation or under any plan of reorganization or arrangement or otherwise. Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting the Notes or the rights of any Holder, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

Section 6.10 Priorities.

If the Trustee collects any money pursuant to this Article 6, it shall pay out the money in the following order:

First: to the Trustee and the Collateral Agent, their agents and attorneys for amounts due under Section 7.07 hereof, including payment of all compensation, expenses and liabilities incurred, and all advances made, by the Trustee and the Collateral Agent and the costs and expenses of collection;

Second: to Holders of Notes for amounts due and unpaid on the Notes for principal, premium, if any, and interest, ratably, without preference or priority of any kind, according to the amounts due and payable on the Notes for principal, premium, if any and interest, respectively; and

Third: to the Company or to such party as a court of competent jurisdiction shall direct.

The Trustee may fix a record date and payment date for any payment to Holders of Notes pursuant to this Section 6.10.

Section 6.11 Undertaking for Costs.

In any suit for the enforcement of any right or remedy under this Indenture or in any suit against the Trustee for any action taken or omitted by it as a Trustee, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable costs, including reasonable attorneys’ fees, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 6.11 does not apply to a suit by the Trustee, a suit by a Holder of a Note pursuant to Section 6.07 hereof, or a suit by Holders of more than 10% in aggregate principal amount of the then outstanding Notes.

ARTICLE 7
TRUSTEE

Section 7.01 Duties of Trustee.

(a) If an Event of Default has occurred and is continuing, the Trustee will exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in its exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs.

(b) Except during the continuance of an Event of Default:

(1) the duties of the Trustee will be determined solely by the express provisions of this Indenture and the Trustee need perform only those duties that are specifically set forth in this Indenture and no others, and no implied covenants or obligations shall be read into this Indenture against the Trustee; and

(2) in the absence of bad faith on its part, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, the Trustee will examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture.

(c) The Trustee may not be relieved from liabilities for its own negligent action, its own negligent failure to act, or its own willful misconduct, except that:

(1) this paragraph does not limit the effect of paragraph (b) of this Section 7.01;

(2) the Trustee will not be liable for any error of judgment made in good faith by a Responsible Officer, unless it is proved in a court of competent jurisdiction that the Trustee was negligent in ascertaining the pertinent facts; and

(3) the Trustee will not be liable with respect to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.05 hereof.

(4) No provision of this Indenture shall require the Trustee to risk its own funds or otherwise incur any financial liability in the performance of any of its duties, or in the exercise of any of its rights or powers, if it shall have reasonable grounds for believing that repayment of such funds or adequate indemnity against such risk is not reasonably assured to it.

(d) Whether or not therein expressly so provided, every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b), and (c) of this Section 7.01.

(e) The Trustee will not be liable for interest on any money received by it except as the Trustee may agree in writing with the Company. Money held in trust by the Trustee need not be segregated from other funds except to the extent required by law.

Section 7.02 Rights of Trustee.

(a) The Trustee may conclusively rely upon any document believed by it to be genuine and to have been signed or presented by the proper Person. The Trustee need not investigate any fact or matter stated in the document.

(b) Before the Trustee acts or refrains from acting, it shall be entitled to receive an Officer’s Certificate or an Opinion of Counsel or both. The Trustee will not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion of Counsel. The Trustee may consult with counsel of its selection and the advice of such counsel or any Opinion of Counsel will be full and complete authorization and protection from liability in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance thereon.

(c) The Trustee may act through its attorneys and agents and will not be responsible for the misconduct or negligence of any agent appointed with due care, and the Trustee shall not be responsible for the supervision of officers and employees of such agents or attorneys or the application of any money by any Agent other than the Trustee.

(d) The Trustee will not be liable for any action it takes or omits to take in good faith that it believes to be authorized or within the rights or powers conferred upon it by this Indenture.

(e) Unless otherwise specifically provided in this Indenture, any demand, request, direction or notice from the Company will be sufficient if signed by an Officer of the Company.

(f) The rights, privileges, protections, immunities and benefits given to the Trustee, including, its right to be compensated, reimbursed, and indemnified, and its right to resign, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder or in any Indenture Document or Collateral Document, including but not limited to its capacities as Paying Agent and Registrar, and to each agent, custodian and other Person employed to act hereunder or in any Indenture Document or Collateral Document.

(g) The Trustee will be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request or direction of any of the Holders unless such Holders have offered to the Trustee indemnity or security satisfactory to the Trustee against the losses, liabilities and expenses that might be incurred by it in compliance with such request or direction.

(h) The Trustee need not investigate any fact or matter stated in any document delivered to it, but the Trustee, in its discretion or if directed to do so, may make such further inquiry or investigation into such facts or matters, and, if the Trustee shall determine in good faith or if directed to do so to make such further inquiry or investigation, it shall be entitled upon reasonable notice during normal business hours to examine the books, records and premises of the Company and the Guarantors, personally or by agent or attorney at the sole cost of the Company and the Guarantors and shall incur no liability or additional liability of any kind by reason of such inquiry or investigation.

(i) The Trustee shall not be deemed to have notice of any Default or Event of Default unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a default is received by a Responsible Officer of the Trustee, and such notice references the Securities generally or the Securities of a particular Series and this Indenture.

(j) Any permissive right or authority granted to the Trustee shall not be construed as a mandatory duty.

(k) The Trustee may request that the Company deliver an Officer’s Certificate setting forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officer’s Certificate may be signed by any person authorized to sign an Officer’s Certificate, including any person specified as so authorized in any such certificate previously delivered and not superseded.

(k) In no event shall the Trustee be responsible or liable for special, indirect, punitive or consequential loss or damage of any kind whatsoever (including, but not limited to, loss or profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action.

(l) The Company shall provide prompt written notice to the Trustee of any change to its fiscal year.

Section 7.03 Individual Rights of Trustee.

The Trustee in its individual or any other capacity may become the owner or pledgee of Notes and may otherwise deal with the Company or any Affiliate of the Company with the same rights it would have if it were not Trustee. However, in the event that the Trustee acquires any conflicting interest it must eliminate such conflict within 90 days, apply to the SEC for permission to continue as trustee (if this Indenture has been qualified under the TIA) or resign. Any Agent may do the same with like rights and duties. The Trustee is also subject to Sections 7.10 and 7.11 hereof.

Section 7.04 Trustee’s Disclaimer.

The Trustee will not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Company’s use of the proceeds from the Notes or any money paid to the Company or upon the Company’s direction under any provision of this Indenture, it will not be responsible for the use or application of any money received by any Paying Agent other than the Trustee, and it will not be responsible for any statement or recital herein or any statement in the Notes or any other document in connection with the sale of the Notes or pursuant to this Indenture other than its certificate of authentication.

Section 7.05 Notice of Defaults.

If a Default or Event of Default occurs and is continuing and if it is known to the Trustee, the Trustee will mail to Holders of Notes a notice of the Default or Event of Default within 90 days after it occurs. Except in the case of a Default or Event of Default in payment of principal of, premium, if any, or interest on, any Note, the Trustee may withhold the notice if and so long as it in good faith determines that withholding the notice is in the interests of the Holders of the Notes.

Section 7.06 Reports by Trustee to Holders of the Notes.

(a) Within 60 days after each January 15th beginning with the January 15th following the date of this Indenture, and for so long as Notes remain outstanding, the Trustee will mail to the Holders of the Notes a brief report dated as of such reporting date that complies with TIA § 313(a) (but if no event described in TIA § 313(a) has occurred within the twelve months preceding the reporting date, no report need be transmitted). The Trustee also will comply with TIA § 313(b)(2). The Trustee will also transmit by mail all reports as required by TIA § 313(c).

(b) A copy of each report at the time of its mailing to the Holders of Notes will be mailed by the Trustee to the Company and filed by the Trustee with the SEC and each stock exchange or market, if any, on which the Notes are listed or quoted in accordance with TIA § 313(d). The Company will promptly notify the Trustee in writing if the Notes become listed or quoted on any stock exchange or market or any delisting thereof.

Section 7.07 Compensation and Indemnity.

(a) The Company will pay to the Trustee from time to time such compensation for its acceptance of this Indenture and services hereunder as agreed to in writing. The Trustee’s compensation will not be limited by any law on compensation of a trustee of an express trust. The Company will reimburse the Trustee promptly upon request for all reasonable disbursements, advances and expenses incurred or made by it in addition to the compensation for its services. Such expenses will include the reasonable compensation, disbursements and expenses of the Trustee’s agents and counsel.

(b) The Company and the Guarantors will jointly and severally indemnify the Trustee against any and all losses, liabilities or expenses incurred by it arising out of or in connection with the acceptance or administration of its duties under this Indenture, including the costs and expenses of enforcing this Indenture against the Company and the Guarantors (including this Section 7.07) and defending itself against any claim (whether asserted by the Company, the Guarantors, any Holder or any other Person) or liability in connection with the exercise or performance of any of its powers or duties hereunder, except to the extent any such loss, liability or expense may be attributable to its negligence or bad faith. The Trustee will notify the Company promptly of any claim for which it may seek indemnity. Failure by the Trustee to so notify the Company will not relieve the Company or any of the Guarantors of their obligations hereunder. The Company or such Guarantor will defend the claim and the Trustee will cooperate in the defense. The Trustee may have separate counsel and the Company will pay the reasonable fees and expenses of such counsel. Neither the Company nor any Guarantor need pay for any settlement made without its consent, which consent will not be unreasonably withheld.

(c) The obligations of the Company and the Guarantors under this Section 7.07 will survive the satisfaction and discharge of this Indenture or earlier resignation or removal of the Trustee.

(d) To secure the Company’s and the Guarantors’ payment obligations in this Section 7.07, the Trustee will have a Lien prior to the Notes on all money or property held or collected by the Trustee, except that held in trust to pay principal and interest on particular Notes. Such Lien will survive the satisfaction and discharge of this Indenture or earlier resignation or removal of the Trustee.

(e) When the Trustee incurs expenses or renders services after an Event of Default specified in Section 6.01(9) or (10) hereof occurs, the expenses and the compensation for the services (including the fees and expenses of its agents and counsel) are intended to constitute expenses of administration under any Bankruptcy Law.

(f) The Trustee will comply with the provisions of TIA § 313(b)(2) to the extent applicable.

Section 7.08 Replacement of Trustee.

(a) A resignation or removal of the Trustee and appointment of a successor Trustee will become effective only upon the successor Trustee’s acceptance of appointment as provided in this Section 7.08.

(b) The Trustee may resign in writing at any time and be discharged from the trust hereby created by so notifying the Company. The Holders of a majority in aggregate principal amount of the then outstanding Notes may remove the Trustee by so notifying the Trustee and the Company in writing. The Company may remove the Trustee if:

(1) the Trustee fails to comply with Section 7.10 hereof;

(2) the Trustee is adjudged a bankrupt or an insolvent or an order for relief is entered with respect to the Trustee under any Bankruptcy Law;

(3) a custodian or public officer takes charge of the Trustee or its property; or

(4) the Trustee becomes incapable of acting.

(c) If the Trustee resigns or is removed or if a vacancy exists in the office of Trustee for any reason, the Company will promptly appoint a successor Trustee. Within one year after the successor Trustee takes office, the Holders of a majority in aggregate principal amount of the then outstanding Notes may appoint a successor Trustee to replace the successor Trustee appointed by the Company.

(d) If a successor Trustee does not take office within 60 days after the retiring Trustee resigns or is removed, the retiring Trustee, the Company, or the Holders of at least 10% in aggregate principal amount of the then outstanding Notes may petition any court of competent jurisdiction for the appointment of a successor Trustee.

(e) If the Trustee, after written request by any Holder who has been a Holder for at least six months, fails to comply with Section 7.10 hereof, such Holder may petition any court of competent jurisdiction for the removal of the Trustee and the appointment of a successor Trustee.

(f) A successor Trustee will deliver a written acceptance of its appointment to the retiring Trustee and to the Company. Thereupon, the resignation or removal of the retiring Trustee will become effective, and the successor Trustee will have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee will mail a notice of its succession to Holders. The retiring Trustee will promptly transfer all property held by it as Trustee to the successor Trustee; provided all sums owing to the Trustee hereunder have been paid and subject to the Lien provided for in Section 7.07 hereof. Notwithstanding replacement of the Trustee pursuant to this Section 7.08, the Company’s obligations under Section 7.07 hereof will continue for the benefit of the retiring Trustee.

Section 7.09 Successor Trustee by Merger, etc.

If the Trustee consolidates, merges or converts into, or transfers all or substantially all of its corporate trust business to, another corporation, the successor corporation without any further act will be the successor Trustee.

Section 7.10 Eligibility; Disqualification.

There will at all times be a Trustee hereunder that is a corporation organized and doing business under the laws of the United States of America or of any state thereof that is authorized under such laws to exercise corporate trustee power, that is subject to supervision or examination by federal or state authorities and that has a combined capital and surplus of at least $100.0 million as set forth in its most recent published annual report of condition.

This Indenture will always have a Trustee who satisfies the requirements of TIA § 310(a)(1), (2) and (5). The Trustee is subject to TIA § 310(b).

Section 7.11 Preferential Collection of Claims Against Company.

The Trustee is subject to TIA § 311(a), excluding any creditor relationship listed in TIA § 311(b). A Trustee who has resigned or been removed shall be subject to TIA § 311(a) to the extent indicated therein.

Section 7.12 Trustee as Paying Agent and Collateral Agent.

References to the Trustee in Sections 7.01(f), 7.02, 7.03, 7.04, 7.07, 7.08 and 7.09 shall include the Trustee in its role as Paying Agent, as Registrar and as Collateral Agent.

ARTICLE 8
LEGAL DEFEASANCE AND COVENANT DEFEASANCE

Section 8.01 Option to Effect Legal Defeasance or Covenant Defeasance.

The Company may at any time, at the option of its Board of Directors evidenced by a resolution set forth in an Officer’s Certificate, elect to have either Section 8.02 or 8.03 hereof be applied to all outstanding Notes upon compliance with the conditions set forth below in this Article 8.

Section 8.02 Legal Defeasance and Discharge.

Upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.02, the Company and each of the Guarantors will, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be deemed to have been discharged from their obligations with respect to all outstanding Notes (including the Note Guarantees) on the date the conditions set forth below are satisfied (hereinafter, “Legal Defeasance”). For this purpose, Legal Defeasance means that the Company and the Guarantors will be deemed to have paid and discharged the entire Indebtedness represented by the outstanding Notes (including the Note Guarantees), which will thereafter be deemed to be “outstanding” only for the purposes of Section 8.05 hereof and the other Sections of this Indenture referred to in clauses (1) and (2) below, and to have satisfied all their other obligations under such Notes, the Note Guarantees and this Indenture (and the Trustee, on demand of and at the expense of the Company, shall execute proper instruments acknowledging the same), except for the following provisions which will survive until otherwise terminated or discharged hereunder:

(1) the rights of Holders of outstanding Notes to receive payments in respect of the principal of, or interest or premium, if any, on, such Notes when such payments are due from the trust referred to in Section 8.04 hereof;

(2) the Company’s obligations with respect to such Notes under Article 2 and Section 4.02 hereof;

(3) the rights, powers, trusts, duties and immunities of the Trustee hereunder and the Company’s and the Guarantors’ obligations in connection therewith; and

(4) this Article 8.

Subject to compliance with this Article 8, the Company may exercise its option under this Section 8.02 notwithstanding the prior exercise of its option under Section 8.03 hereof.

Section 8.03 Covenant Defeasance.

Upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, the Company and each of the Guarantors will, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, be released from each of their obligations under the covenants contained in Sections 4.03, 4.07, 4.08, 4.09, 4.10, 4.11, 4.12, 4.13, 4.15, 4.16, 4.17, 4.18, 4.19, 4.20, 4.21 and 4.22 hereof and clause (4) of Section 5.01 hereof with respect to the outstanding Notes on and after the date the conditions set forth in Section 8.04 hereof are satisfied (hereinafter, “Covenant Defeasance”), and the Notes will thereafter be deemed not “outstanding” for the purposes of any direction, waiver, consent or declaration or act of Holders (and the consequences of any thereof) in connection with such covenants, but will continue to be deemed “outstanding” for all other purposes hereunder (it being understood that such Notes will not be deemed outstanding for accounting purposes). For this purpose, Covenant Defeasance means that, with respect to the outstanding Notes and Note Guarantees, the Company and the Guarantors may omit to comply with and will have no liability in respect of any term, condition or limitation set forth in any such covenant, whether directly or indirectly, by reason of any reference elsewhere herein to any such covenant or by reason of any reference in any such covenant to any other provision herein or in any other document and such omission to comply will not constitute a Default or an Event of Default under Section 6.01 hereof, but, except as specified above, the remainder of this Indenture and such Notes and Note Guarantees will be unaffected thereby. In addition, upon the Company’s exercise under Section 8.01 hereof of the option applicable to this Section 8.03, subject to the satisfaction of the conditions set forth in Section 8.04 hereof, Sections 6.01(3) through 6.01(5) hereof will not constitute Events of Default.

Section 8.04 Conditions to Legal or Covenant Defeasance.

In order to exercise either Legal Defeasance or Covenant Defeasance under either Section 8.02 or 8.03 hereof:

(1) the Company must irrevocably deposit with the Trustee, in trust, for the benefit of the Holders, cash in U.S. dollars, non-callable Government Securities, or a combination thereof, in such amounts as will be sufficient, in the opinion of a nationally recognized investment bank, appraisal firm, or firm of independent public accountants, to pay the principal of, premium, if any, and interest on, the outstanding Notes on the stated date for payment thereof or on the applicable redemption date, as the case may be, and the Company must specify whether the Notes are being defeased to such stated date for payment or to a particular redemption date;

(2) in the case of an election under Section 8.02 hereof, the Company must deliver to the Trustee an Opinion of Counsel confirming that:

(A) the Company has received from, or there has been published by, the Internal Revenue Service a ruling; or

(B) since the date of this Indenture, there has been a change in the applicable federal income tax law,

in either case to the effect that, and based thereon such Opinion of Counsel shall confirm that, the Holders of the outstanding Notes will not recognize income, gain or loss for federal income tax purposes as a result of such Legal Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Legal Defeasance had not occurred;

(3) in the case of an election under Section 8.03 hereof, the Company must deliver to the Trustee an Opinion of Counsel confirming that the Holders of the outstanding Notes will not recognize income, gain or loss for federal income tax purposes as a result of such Covenant Defeasance and will be subject to federal income tax on the same amounts, in the same manner and at the same times as would have been the case if such Covenant Defeasance had not occurred;

(4) no Default or Event of Default shall have occurred and be continuing on the date of such deposit (other than a Default or Event of Default resulting from the borrowing of funds to be applied to such deposit) and the deposit will not result in a breach or violation of, or constitute a default under, any other instrument to which the Company or any Guarantor is a party or by which the Company or any Guarantor is bound;

(5) such Legal Defeasance or Covenant Defeasance will not result in a breach or violation of, or constitute a default under, any agreement or instrument (other than this Indenture) to which the Company or any of its Subsidiaries is a party or by which the Company or any of its Subsidiaries is bound;

(6) the Company must deliver to the Trustee an Officer’s Certificate stating that the deposit was not made by the Company with the intent of preferring the Holders of Notes over the other creditors of the Company with the intent of defeating, hindering, delaying or defrauding any creditors of the Company or others; and

(7) the Company must deliver to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent relating to the Legal Defeasance or the Covenant Defeasance have been complied with.

Section 8.05 Deposited Money and Government Securities to be Held in Trust; Other Miscellaneous Provisions.

Subject to Section 8.06 hereof, all money and non-callable Government Securities (including the proceeds thereof) deposited with the Trustee (or other qualifying trustee, collectively for purposes of this Section 8.05, the “Trustee”) pursuant to Section 8.04 hereof in respect of the outstanding Notes will be held in trust and applied by the Trustee, in accordance with the provisions of such Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as Paying Agent) as the Trustee may determine, to the Holders of such Notes of all sums due and to become due thereon in respect of principal, premium, if any, and interest.

The Company will pay and indemnify the Trustee against any tax, fee or other charge imposed on or assessed against the cash or non-callable Government Securities deposited pursuant to Section 8.04 hereof or the principal and interest received in respect thereof other than any such tax, fee or other charge which by law is for the account of the Holders of the outstanding Notes.

Notwithstanding anything in this Article 8 to the contrary, the Trustee will deliver or pay to the Company from time to time upon the request of the Company any money or non-callable Government Securities held by it as provided in Section 8.04 hereof which, in the opinion of a nationally recognized firm of independent public accountants expressed in a written certification thereof delivered to the Trustee (which may be the opinion delivered under Section 8.04(1) hereof), are in excess of the amount thereof that would then be required to be deposited to effect an equivalent Legal Defeasance or Covenant Defeasance.

Section 8.06 Repayment to Company.

Any money deposited with the Trustee or any Paying Agent, or then held by the Company, in trust for the payment of the principal of, premium, if any, or interest on, any Note and remaining unclaimed for two years after such principal, premium, if any, or interest has become due and payable shall be paid to the Company on its request or (if then held by the Company) will be discharged from such trust; and the Holder of such Note will thereafter be permitted to look only to the Company for payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money, and all liability of the Company as trustee thereof, will thereupon cease; provided, however, that the Trustee or such Paying Agent, before being required to make any such repayment, may at the expense of the Company cause to be published once, in the New York Times and The Wall Street Journal (national edition), notice that such money remains unclaimed and that, after a date specified therein, which will not be less than 30 days from the date of such notification or publication, any unclaimed balance of such money then remaining will be repaid to the Company.

Section 8.07 Reinstatement.

If the Trustee or Paying Agent is unable to apply any U.S. dollars or non-callable Government Securities in accordance with Section 8.02 or 8.03 hereof, as the case may be, by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, then the Company’s and the Guarantors’ obligations under this Indenture and the Notes and the Note Guarantees will be revived and reinstated as though no deposit had occurred pursuant to Section 8.02 or 8.03 hereof until such time as the Trustee or Paying Agent is permitted to apply all such money in accordance with Section 8.02 or 8.03 hereof, as the case may be; provided, however, that, if the Company makes any payment of principal of, premium, if any, or interest on, any Note following the reinstatement of its obligations, the Company will be subrogated to the rights of the Holders of such Notes to receive such payment from the money held by the Trustee or Paying Agent.

ARTICLE 9
AMENDMENT, SUPPLEMENT AND WAIVER

Section 9.01 Without Consent of Holders of Notes.

Notwithstanding Section 9.02 of this Indenture, the Company, the Guarantors, if any, and the Trustee may amend or supplement the Indenture Documents without the consent of any Holder of Note:

(1) to cure any ambiguity, defect or inconsistency that does not adversely affect the holders of the Notes in any material respect;

(2) to provide for uncertificated Notes in addition to or in place of certificated Notes;

(3) to provide for the assumption of the Company’s or a Guarantor’s obligations to the Holders of the Notes and Note Guarantees by a successor to the Company or such Guarantor pursuant to Article 5 hereof;

(4) to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights hereunder of any Holder; or

(5) to allow any Guarantor to execute a supplemental indenture and/or a Note Guarantee with respect to the Notes or to release a Guarantor from its Note Guarantee in accordance with the terms of this Indenture.

Upon the request of the Company accompanied by a resolution of its Board of Directors authorizing the execution of any such amended or supplemental indenture, and upon receipt by the Trustee of the documents described in Section 7.02 hereof, the Trustee will join with the Company and the Guarantors in the execution of any amended or supplemental indenture authorized or permitted by the terms of this Indenture and to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee will not be obligated to enter into such amended or supplemental indenture that affects its own rights, duties or immunities under this Indenture or otherwise.

Section 9.02 With Consent of Holders of Notes.

Except as provided below in this Section 9.02, the Company, the Guarantors, if any, and the Trustee may amend or supplement the Indenture Documents with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes voting as a single class (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes), and, subject to Sections 6.04 and 6.07 hereof, any existing Default or Event of Default (other than a Default or Event of Default in the payment of the principal of, premium, if any, or interest on, the Notes, except a payment default resulting from an acceleration that has been rescinded) or compliance with any provision of the Indenture Documents may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes voting as a single class (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes). Section 2.08 hereof shall determine which Notes are considered to be “outstanding” for purposes of this Section 9.02.

Upon the written request of the Company accompanied by a resolution of its Board of Directors authorizing the execution of any such amended or supplemental indenture, and upon the filing with the Trustee of evidence satisfactory to the Trustee of the consent of the Holders of Notes as aforesaid, and upon receipt by the Trustee of the documents described in Section 7.02 hereof, the Trustee will join with the Company and the Guarantors in the execution of such amended or supplemental indenture unless such amended or supplemental indenture directly affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise, in which case the Trustee may in its discretion, but will not be obligated to, enter into such amended or supplemental Indenture.

It is not necessary for the consent of the Holders of Notes under this Section 9.02 to approve the particular form of any proposed amendment, supplement or waiver, but it is sufficient if such consent approves the substance thereof.

After an amendment, supplement or waiver under this Section 9.02 becomes effective, the Company will mail to the Holders of Notes affected thereby a notice briefly describing the amendment, supplement or waiver. Any failure of the Company to mail such notice, or any defect therein, will not, however, in any way impair or affect the validity of any such amended or supplemental indenture or waiver. Subject to Sections 6.04 and 6.07 hereof, the Holders of a majority in aggregate principal amount of the Notes then outstanding voting as a single class may waive compliance in a particular instance by the Company with any provision of the Indenture Documents. However, without the consent of each Holder affected, an amendment, supplement or waiver under this Section 9.02 may not (with respect to any Notes held by a non-consenting Holder):

(1) reduce the principal amount of Notes whose Holders must consent to an amendment, supplement or waiver;

(2) reduce the principal of or change the fixed maturity of any Note or reduce the premium payable upon the redemption of any Note or change the time at which any Note may be redeemed;

(3) reduce the rate of or change the time for payment of interest, including default interest, on any Note;

(4) waive a Default or Event of Default in the payment of principal of, or interest or premium, if any, on, the Notes (except a rescission of acceleration of the Notes by the holders of at least a majority in aggregate principal amount of the then outstanding Notes and a waiver of the payment default that resulted from such acceleration);

(5) make any Note payable in money other than that stated in the Notes;

(6) make any change in the provisions of this Indenture relating to waivers of past Defaults or the rights of Holders of Notes to receive payments of principal of, or interest or premium, if any, on, the Notes;

(7) waive a redemption payment with respect to any Note (other than a payment required by Sections 4.10, 4.15 and 4.16 hereof);

(8) release any Guarantor from any of its obligations under its Note Guarantee or this Indenture, except in accordance with the terms of this Indenture;

(9) expressly subordinate the Notes or any Note Guarantees in right of payment, or expressly subordinate the Lien securing the Notes and the Note Guarantees;

(10) make any change in the preceding amendment and waiver provisions; or

(11) release all or substantially all of the Collateral from the Liens securing the Notes.

Section 9.03 Revocation and Effect of Consents.

Until an amendment, supplement or waiver becomes effective, a consent to it by a Holder of a Note is a continuing consent by the Holder of a Note and every subsequent Holder of a Note or portion of a Note that evidences the same debt as the consenting Holder’s Note, even if notation of the consent is not made on any Note. However, any such Holder of a Note or subsequent Holder of a Note may revoke the consent as to its Note if the Trustee receives written notice of revocation before the date the amendment, supplement or waiver becomes effective. An amendment, supplement or waiver becomes effective in accordance with its terms and thereafter binds every Holder.

Section 9.04 Notation on or Exchange of Notes.

The Trustee may place an appropriate notation about an amendment, supplement or waiver on any Note thereafter authenticated. The Company in exchange for all Notes may issue and the Trustee shall, upon receipt of an Authentication Order, authenticate new Notes that reflect the amendment, supplement or waiver.

Failure to make the appropriate notation or issue a new Note will not affect the validity and effect of such amendment, supplement or waiver.

Section 9.05 Trustee to Sign Amendments, etc.

The Trustee will sign any amended or supplemental indenture authorized pursuant to this Article 9 if the amendment or supplement does not adversely affect the rights, duties, liabilities or immunities of the Trustee. The Company may not sign an amended or supplemental indenture until the Board of Directors of the Company approves it. In executing any amended or supplemental indenture, the Trustee will receive and (subject to Section 7.01 hereof) will be fully protected in relying upon, in addition to the documents required by Section 13.04 hereof, an Officer’s Certificate and an Opinion of Counsel stating that the execution of such amended or supplemental indenture is authorized or permitted by this Indenture and that such amendment, supplement or waiver is the legal, valid and binding obligation of the Company and any Guarantors party thereto, enforceable against them in accordance with its terms, subject to customary exceptions, and complies with the provisions of this Indenture.

ARTICLE 10
COLLATERAL AND SECURITY

Section 10.01 Grant of Security Interest; Collateral Documents.

The due and punctual payment of the principal of and interest, if any, on the Notes when and as the same shall be due and payable, whether on an interest payment date, at maturity, by acceleration, repurchase, redemption or otherwise, and interest on the overdue principal of and interest (to the extent permitted by law), if any, on the Notes and performance of all other obligations of the Company to the Holders of Notes or the Trustee under the Indenture Documents, according to the terms hereunder or thereunder, are secured as provided in the Collateral Documents which the Company has entered into simultaneously with the execution of this Indenture. Each Holder of Notes, by its acceptance thereof, consents and agrees to the terms of the Collateral Documents (including, without limitation, the provisions providing for foreclosure and release of Collateral) as the same may be in effect or may be amended from time to time in accordance with its terms and authorizes and directs the Collateral Agent to enter into the Collateral Documents and to perform its obligations and exercise its rights thereunder in accordance therewith. The Company will deliver to the Trustee copies of all documents delivered to the Collateral Agent pursuant to the Collateral Documents, and will do or cause to be done all such acts and things as may be required by the provisions of the Collateral Documents, to assure and confirm to the Trustee and the Collateral Agent the security interest in the Collateral contemplated hereby, by the Collateral Documents or any part thereof, as from time to time constituted, so as to render the same available for the security and benefit of this Indenture and of the Notes secured hereby, according to the intent and purposes herein expressed. The Company will take, and will cause its Subsidiaries to take, upon request of the Trustee, any and all actions reasonably required to cause the Collateral Documents to create and maintain, as security for the Obligations of the Company hereunder, a valid and enforceable perfected first priority Lien in and on all the Collateral, in favor of the Collateral Agent for its benefit, the benefit of the Trustee and for the benefit of the Holders, superior to and prior to the rights of all third Persons and subject to no other Liens than Permitted Liens. For the avoidance of doubt, neither the Trustee nor the Collateral Agent shall be responsible for the existence, genuineness or value of any of the Collateral or for the validity, perfection, priority or enforceability of the security interest in any of the Collateral.

Section 10.02 Recording and Opinions.

(a) The Company will furnish to the Trustee simultaneously with the execution and delivery of this Indenture an Opinion of Counsel with respect to the Collateral Documents and the Lien created by the Collateral Documents in a form acceptable to the initial purchasers of the Notes and their counsel.

(b) The Company will furnish to the Collateral Agent and the Trustee, within 60 days after each January 15th, beginning with the January 15th following the date of this Indenture, an Opinion of Counsel, dated as of such date, either:

(1) (A) stating that, in the opinion of such counsel, action has been taken with respect to the recording, registering, filing, re-recording, re-registering and re-filing of all supplemental indentures, financing statements, continuation statements or other instruments of further assurance as is necessary to maintain the Lien of the Collateral Documents and reciting with respect to the security interests in the Collateral the details of such action or referring to prior Opinions of Counsel in which such details are given, and (B) stating that, in the opinion of such counsel, based on relevant laws as in effect on the date of such Opinion of Counsel, all financing statements and continuation statements have been executed and filed that are necessary as of such date and during the succeeding 12 months fully to preserve and protect, to the extent such protection and preservation are possible by filing, the rights of the Holders of Notes and the Collateral Agent and the Trustee hereunder and under the Collateral Documents with respect to the security interests in the Collateral;

(2) stating that, in the opinion of such counsel, no such action is necessary to maintain such Lien and assignment.

Section 10.03 Release of Collateral.

(a) The Collateral Agent shall not at any time release Collateral from the security interests created by the Collateral Documents unless such release is in accordance with the provisions of this Indenture and the applicable Collateral Documents.

(b) The Collateral Agent shall be entitled to request and rely upon an Officer’s Certificate and/or an Opinion of Counsel in connection with any release of Collateral from the Lien and security interest created by the Collateral Documents.

(c) At any time when a Default or Event of Default has occurred and is continuing and the maturity of the Notes has been accelerated (whether by declaration or otherwise) and the Trustee has delivered a notice of acceleration to the Collateral Agent, no release of Collateral pursuant to the provisions of the Collateral Documents will be effective as against the Holders of Notes.

Section 10.04 [Reserved].

Section 10.05 [Reserved].

Section 10.06 Authorization of Actions to Be Taken by the Trustee Under the Collateral Documents.

Subject to the provisions of Section 7.01 and 7.02 hereof, the Trustee may, in its sole discretion and without the consent of the Holders of Notes, direct, on behalf of the Holders of Notes, the Collateral Agent to, take all actions it deems necessary or appropriate in order to:

(1) enforce any of the terms of the Collateral Documents; and

(2) collect and receive any and all amounts payable in respect of the Obligations of the Company hereunder.

The Trustee will have power to institute and maintain such suits and proceedings as it may deem expedient to prevent any impairment of the Collateral by any acts that may be unlawful or in violation of the Collateral Documents or this Indenture, and such suits and proceedings as the Trustee may deem expedient to preserve or protect its interests and the interests of the Holders of Notes in the Collateral (including power to institute and maintain suits or proceedings to restrain the enforcement of or compliance with any legislative or other governmental enactment, rule or order that may be unconstitutional or otherwise invalid if the enforcement of, or compliance with, such enactment, rule or order would impair the security interest hereunder or be prejudicial to the interests of the Holders of Notes or of the Trustee).

Section 10.07 Authorization of Receipt of Funds by the Trustee Under the Collateral Documents.

The Trustee is authorized to receive any funds for the benefit of the Holders of Notes distributed under the Collateral Documents, and to make further distributions of such funds to the Holders of Notes according to the provisions of this Indenture.

Section 10.08 Termination of Security Interest.

Upon the payment in full of all Obligations of the Company under this Indenture and the Notes, or upon Legal Defeasance, the Trustee will, at the written request of the Company, deliver a certificate to the Collateral Agent stating that such Obligations have been paid in full, and instruct the Collateral Agent to release the Liens pursuant to this Indenture and the Collateral Documents.

ARTICLE 11
NOTE GUARANTEES

Section 11.01 Guarantee.

(a) Subject to this Article 11, each of the Guarantors hereby, jointly and severally, unconditionally guarantees to each Holder of a Note authenticated and delivered by the Trustee and to the Trustee and its successors and assigns, irrespective of the validity and enforceability of this Indenture, the Notes or the obligations of the Company hereunder or thereunder, that:

(1) the principal of, premium, if any, and interest on, the Notes will be promptly paid in full when due, whether at maturity, by acceleration, redemption or otherwise, and interest on the overdue principal of and interest on the Notes, if any, if lawful, and all other obligations of the Company to the Holders or the Trustee hereunder or thereunder will be promptly paid in full or performed, all in accordance with the terms hereof and thereof; and

(2) in case of any extension of time of payment or renewal of any Notes or any of such other obligations, that same will be promptly paid in full when due or performed in accordance with the terms of the extension or renewal, whether at stated maturity, by acceleration or otherwise.

Failing payment when due of any amount so guaranteed or any performance so guaranteed for whatever reason, the Guarantors will be jointly and severally obligated to pay the same immediately. Each Guarantor agrees that this is a guarantee of payment and not a guarantee of collection.

(b) The Guarantors hereby agree that their obligations hereunder are unconditional, irrespective of the validity, regularity or enforceability of the Notes or this Indenture, the absence of any action to enforce the same, any waiver or consent by any Holder of the Notes with respect to any provisions hereof or thereof, the recovery of any judgment against the Company, any action to enforce the same or any other circumstance which might otherwise constitute a legal or equitable discharge or defense of a guarantor. Each Guarantor hereby waives diligence, presentment, demand of payment, filing of claims with a court in the event of insolvency or bankruptcy of the Company, any right to require a proceeding first against the Company, protest, notice and all demands whatsoever and covenant that this Note Guarantee will not be discharged except by complete performance of the obligations contained in the Indenture Documents.

(c) If any Holder or the Trustee is required by any court or otherwise to return to the Company, the Guarantors or any custodian, trustee, liquidator or other similar official acting in relation to either the Company or the Guarantors, any amount paid by either to the Trustee or such Holder, this Note Guarantee, to the extent theretofore discharged, will be reinstated in full force and effect.

(d) Each Guarantor agrees that it will not be entitled to any right of subrogation in relation to the Holders in respect of any obligations guaranteed hereby until payment in full of all obligations guaranteed hereby. Each Guarantor further agrees that, as between the Guarantors, on the one hand, and the Holders and the Trustee, on the other hand, (1) the maturity of the obligations guaranteed hereby may be accelerated as provided in Article 6 hereof for the purposes of this Note Guarantee, notwithstanding any stay, injunction or other prohibition preventing such acceleration in respect of the obligations guaranteed hereby, and (2) in the event of any declaration of acceleration of such obligations as provided in Article 6 hereof, such obligations (whether or not due and payable) will forthwith become due and payable by the Guarantors for the purpose of this Note Guarantee. The Guarantors will have the right to seek contribution from any non-paying Guarantor so long as the exercise of such right does not impair the rights of the Holders under the Note Guarantee.

Section 11.02 Limitation on Guarantor Liability.

Each Guarantor, and by its acceptance of Notes, each Holder, hereby confirms that it is the intention of all such parties that the Note Guarantee of such Guarantor not constitute a fraudulent transfer or conveyance for purposes of Bankruptcy Law, the Uniform Fraudulent Conveyance Act, the Uniform Fraudulent Transfer Act or any similar federal or state law to the extent applicable to any Note Guarantee. To effectuate the foregoing intention, the Trustee, the Holders and the Guarantors hereby irrevocably agree that the obligations of such Guarantor will be limited to the maximum amount that will, after giving effect to such maximum amount and all other contingent and fixed liabilities of such Guarantor that are relevant under such laws, and after giving effect to any collections from, rights to receive contribution from or payments made by or on behalf of any other Guarantor in respect of the obligations of such other Guarantor under this Article 11, result in the obligations of such Guarantor under its Note Guarantee not constituting a fraudulent transfer or conveyance.

Section 11.03 Execution and Delivery of Note Guarantee.

Each Guarantor hereby agrees that its execution and delivery of this Indenture or any supplemental indenture in the form of Exhibit E hereto on behalf of such Guarantor by an Officer thereof in accordance with Section 4.17 hereof shall evidence its Note Guarantee set forth in this Article 11 without the need for any further notation on the Notes.

If an Officer whose signature is on this Indenture no longer holds that office at the time the Trustee authenticates the Note guaranteed by any Guarantor under its Note Guarantee, the Note Guarantee will be valid nevertheless.

The delivery of any Note by the Trustee, after the authentication thereof hereunder, will constitute due delivery of the Note Guarantee set forth in this Indenture on behalf of the Guarantors.

In the event that the Company or any of its Restricted Subsidiaries creates or acquires any Domestic Subsidiary after the date of this Indenture, if required by Section 4.17 hereof, the Company will cause such Domestic Subsidiary to comply with the provisions of Section 4.17 hereof and this Article 11, to the extent applicable.

Section 11.04 Guarantors May Consolidate, etc., on Certain Terms.

Except as otherwise provided in Section 11.05 hereof, no Guarantor may sell or otherwise dispose of all or substantially all of its assets to, or consolidate with or merge with or into (whether or not such Guarantor is the surviving Person) another Person, other than the Company or another Guarantor, unless:

(1) immediately after giving effect to such transaction, no Default or Event of Default exists; and

(2) such sale or other disposition (which for the avoidance of doubt shall constitute an Asset Sale or, if applicable, a Change of Control) does not violate Section 4.10 hereof or, if such sale or disposition constitutes a Change of Control, Section 4.15 hereof.

Except as set forth in Articles 4 and 5 hereof, and notwithstanding clause 2 above, nothing contained in this Indenture or in any of the Notes will prevent any consolidation or merger of a Guarantor with or into the Company or another Guarantor, or will prevent any sale or conveyance of the property of a Guarantor as an entirety or substantially as an entirety to the Company or another Guarantor.

Section 11.05 Releases.

(a) In the event of any sale or other disposition of all or substantially all of the assets of any Guarantor, by way of merger, consolidation or otherwise, or a sale or other disposition of all of the Capital Stock of any Guarantor, in each case to a Person that is not (either before or after giving effect to such transactions) the Company or a Restricted Subsidiary of the Company, then such Guarantor (in the event of a sale or other disposition, by way of merger, consolidation or otherwise, of all of the Capital Stock of such Guarantor) or the corporation acquiring the property (in the event of a sale or other disposition of all or substantially all of the assets of such Guarantor) will be released and relieved of any obligations under its Note Guarantee; provided that the sale or other disposition (which for the avoidance of doubt shall constitute an Asset Sale or, if applicable, a Change of Control) does not violate Section 4.10 hereof or, if such sale or disposition constitutes a Change of Control, Section 4.15 hereof. Upon delivery by the Company to the Trustee of an Officer’s Certificate and an Opinion of Counsel to the effect that such sale or other disposition was made by the Company in accordance with the provisions of this Indenture, including without limitation Section 4.10 hereof or, if such sale or disposition constitutes a Change of Control, Section 4.15 hereof, the Trustee will execute any documents reasonably required in order to evidence the release of any Guarantor from its obligations under its Note Guarantee.

(b) Upon the liquidation or dissolution of such Guarantor where the assets of such Guarantor are conveyed to the Company or a Restricted Subsidiary; provided that no Default or Event of Default shall occur as a result thereof or has occurred and is continuing, each Guarantor will be released and relieved of any obligations under its Note Guarantee.

(c) Upon Covenant Defeasance or Legal Defeasance in accordance with Article 8 hereof or satisfaction and discharge of this Indenture in accordance with Article 12 hereof, each Guarantor will be released and relieved of any obligations under its Note Guarantee.

Any Guarantor not released from its obligations under its Note Guarantee as provided in this Section 11.05 will remain liable for the full amount of principal of and interest and premium, if any, on the Notes and for the other obligations of any Guarantor under this Indenture as provided in this Article 11.

ARTICLE 12
satisfaction and discharge

Section 12.01 Satisfaction and Discharge.

This Indenture will be discharged and will cease to be of further effect as to all Notes issued hereunder, when:

(1) either:

(a) all Notes that have been authenticated, except lost, stolen or destroyed Notes that have been replaced or paid and Notes for whose payment money has been deposited in trust and thereafter repaid to the Company, have been delivered to the Trustee for cancellation; or

(b) all Notes that have not been delivered to the Trustee for cancellation have become due and payable by reason of the mailing of a notice of redemption, are to be called for redemption within one year under arrangements satisfactory to the Trustee for the giving of notice of redemption by the Trustee in the name, and at the expense of, the Company, or otherwise or will become due and payable within one year and the Company or any Guarantor has irrevocably deposited or caused to be deposited with the Trustee as trust funds in trust solely for the benefit of the holders, cash in U.S. dollars, non-callable Government Securities, or a combination of cash in U.S. dollars and non-callable Government Securities, in amounts as will be sufficient, without consideration of any reinvestment of interest, to pay and discharge the entire Indebtedness on the Notes not delivered to the Trustee for cancellation for principal, premium, if any, and accrued interest to the date of maturity or redemption;

(2) no Default or Event of Default has occurred and is continuing on the date of the deposit (other than a Default or Event of Default resulting from the borrowing of funds to be applied to such deposit);

(3) the Company or any Guarantor has paid or caused to be paid all sums payable by it under this Indenture; and

(4) the Company has delivered irrevocable instructions to the Trustee under this Indenture to apply the deposited money toward the payment of the Notes at maturity or on the redemption date, as the case may be.

In addition, the Company must deliver an Officer’s Certificate and an Opinion of Counsel to the Trustee stating that all conditions precedent to satisfaction and discharge have been satisfied.

Notwithstanding the satisfaction and discharge of this Indenture, if money has been deposited with the Trustee pursuant to subclause (b) of clause (1) of this Section 12.01, the provisions of Sections 12.02 and 8.06 hereof will survive. In addition, nothing in this Section 12.01 will be deemed to discharge those provisions of Section 7.07 hereof, that, by their terms, survive the satisfaction and discharge of this Indenture.

Section 12.02 Application of Trust Money.

Subject to the provisions of Section 8.06 hereof, all money deposited with the Trustee pursuant to Section 12.01 hereof shall be held in trust and applied by it, in accordance with the provisions of the Notes and this Indenture, to the payment, either directly or through any Paying Agent (including the Company acting as its own Paying Agent) as the Trustee may determine, to the Persons entitled thereto, of the principal (and premium, if any) and interest for whose payment such money has been deposited with the Trustee; but such money need not be segregated from other funds except to the extent required by law.

If the Trustee or Paying Agent is unable to apply any money or Government Securities in accordance with Section 12.01 hereof by reason of any legal proceeding or by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s and any Guarantor’s obligations under this Indenture and the Notes shall be revived and reinstated as though no deposit had occurred pursuant to Section 12.01 hereof; provided that if the Company has made any payment of principal of, premium, if any, or interest on, any Notes because of the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Notes to receive such payment from the money or Government Securities held by the Trustee or Paying Agent.

ARTICLE 13
MISCELLANEOUS

Section 13.01 Notice

Any notice or communication by the Company, any Guarantor or the Trustee to the others is duly given if in writing and delivered in Person or by first class mail (registered or certified, return receipt requested), facsimile transmission or overnight air courier guaranteeing next day delivery, to the others’ address:

If to the Company and/or any Guarantor:

Nektar Therapeutics
455 Mission Bay Boulevard South
San Francisco, CA 94158
Facsimile No.: (___) ___-____
Attention: Gil Labrucherie, Esq

With a copy to:
O’Melveny & Myers LLP

7 Times Square, #34

New York, New York 10036

Attention: Sam Zucker, Esq. and Sung Pak, Esq.

If to the Trustee:
Wells Fargo Bank, National Association

45 Broadway, 14th Floor
New York, New York 10006

Facsimile No.: (212) 515-1589
Attention: Corporate Trust Services – Administrator for Nektar Therapeutics

The Company, any Guarantor or the Trustee, by notice to the others, may designate additional or different addresses for subsequent notices or communications.

All notices and communications (other than those sent to Holders) will be deemed to have been duly given: at the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt acknowledged, if transmitted by facsimile; and the next Business Day after timely delivery to the courier, if sent by overnight air courier guaranteeing next day delivery.

Any notice or communication to a Holder will be mailed by first class mail, certified or registered, return receipt requested, or by overnight air courier guaranteeing next day delivery to its address shown on the register kept by the Registrar. Failure to mail a notice or communication to a Holder or any defect in it will not affect its sufficiency with respect to other Holders.

If a notice or communication is mailed in the manner provided above within the time prescribed, it is duly given, whether or not the addressee receives it.

If the Company mails a notice or communication to Holders, it will mail a copy to the Trustee and each Agent at the same time.

Section 13.02 Communication by Holders of Notes with Other Holders of Notes.

Holders may communicate pursuant to TIA § 312(b) with other Holders with respect to their rights under this Indenture or the Notes. The Company, the Trustee, the Registrar and anyone else shall have the protection of TIA § 312(c).

Section 13.03 Certificate and Opinion as to Conditions Precedent.

Upon any request or application by the Company to the Trustee to take any action under this Indenture, the Company shall furnish to the Trustee:

(1) an Officer’s Certificate in form and substance reasonably satisfactory to the Trustee (which must include the statements set forth in Section 13.04 hereof) stating that, in the opinion of such Officer, all conditions precedent and covenants, if any, provided for in this Indenture relating to the proposed action have been satisfied; and

(2) an Opinion of Counsel in form and substance reasonably satisfactory to the Trustee (which must include the statements set forth in Section 13.04 hereof) stating that, in the opinion of such counsel, all such conditions precedent and covenants have been satisfied.

Section 13.04 Statements Required in Certificate or Opinion.

Each certificate or opinion with respect to compliance with a condition or covenant provided for in this Indenture (other than a certificate provided pursuant to TIA § 314(a)(4)) must comply with the provisions of TIA § 314(e) and must include:

(1) a statement that the Person making such certificate or opinion has read such covenant or condition;

(2) a brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based;

(3) a statement that, in the opinion of such Person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed opinion as to whether or not such covenant or condition has been satisfied; and

(4) a statement as to whether or not, in the opinion of such Person, such condition or covenant has been satisfied.

Section 13.05 Rules by Trustee and Agents.

The Trustee may make reasonable rules for action by or at a meeting of Holders. The Registrar or Paying Agent may make reasonable rules and set reasonable requirements for its functions.

Section 13.06 Force Majeure

In no event shall the Trustee be responsible or liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; it being understood that the Trustee shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances.

Section 13.07 No Personal Liability of Directors, Officers, Employees and Stockholders.

No past, present or future director, officer, employee, incorporator or stockholder of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Indenture Documents or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

Section 13.08 Governing Law.

THE INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THE INDENTURE DOCUMENTS WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

Section 13.09 No Adverse Interpretation of Other Agreements.

This Indenture may not be used to interpret any other indenture, loan or debt agreement of the Company or its Subsidiaries or of any other Person. Any such indenture, loan or debt agreement may not be used to interpret this Indenture.

Section 13.10 Successors.

All agreements of the Company in the Indenture Documents will bind its successors. All agreements of the Trustee in this Indenture will bind its successors. All agreements of each Guarantor in the Indenture Documents will bind its successors, except as otherwise provided in Section 11.05 hereof.

Section 13.11 Severability.

In case any provision in any of the Indenture Documents is invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions will not in any way be affected or impaired thereby.

Section 13.12 Counterpart Originals.

The parties may sign any number of copies of this Indenture. Each signed copy will be an original, but all of them together represent the same agreement. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signature of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original signatures for all purposes.

Section 13.13 Table of Contents, Headings, etc.

The Table of Contents and Headings of the Articles and Sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part of this Indenture and will in no way modify or restrict any of the terms or provisions hereof.

Section 13.14 U.S.A. Patriot Act.

The parties hereto acknowledge that in accordance with Section 326 of the U.S.A. Patriot Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the U.S.A. Patriot Act.

SIGNATURES

Dated as of July 11, 2012

	NEKTAR THERAPEUTICS

	By:	/s/ John Nicholson
		Name: John Nicholson
		Title: Senior Vice President and Chief Financial Officer

	WELLS FARGO BANK, NATIONAL ASSOCIATION, as Trustee and Collateral Agent

	By:	/s/ Raymond Delli Colli
		Name: Raymond Delli Colli
		Title: Vice President

[Face of Note]

CUSIP ____________

12.000% Senior Secured Notes due 2017

No. ___

$____________

[or such other principal amount as shall be set forth in the Schedule of Exchanges of Interests in the Global Note attached hereto]²

NEKTAR THERAPEUTICS

promises to pay to [CEDE & CO.] or registered assigns, the principal sum of ___________ DOLLARS [or such other principal amount as shall be set forth on the Schedule of Exchanges of Interests in the Global Note attached hereto]³ on July 15, 2017.

Interest Payment Dates: January 15 and July 15

Record Dates: January 1 and July 1

²Insert in Global Notes.

³ Insert in Global Notes.

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	NEKTAR THERAPEUTICS


	By:
		Name:
		Title:

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This is one of the Notes referred to in the within-mentioned Indenture:

WELLS FARGO BANK, NATIONAL ASSOCIATION,
as Trustee

By:
Authorized Signatory

Dated:

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[Back of Note]

12.000% Senior Secured Notes due 2017

[Insert the Global Note Legend, if applicable pursuant to the provisions of the Indenture]

[Insert the Private Placement Legend, if applicable pursuant to the provisions of the Indenture]

Capitalized terms used herein have the meanings assigned to them in the Indenture referred to below unless otherwise indicated.

(1) Interest. Nektar Therapeutics, a Delaware corporation (the “Company”), promises to pay interest on the principal amount of this Note at 12.000% per annum from ________________ until maturity. The Company will pay interest, semi-annually in arrears on January 15 and July 15 of each year, or if any such day is not a Business Day, on the next succeeding Business Day (each, an “Interest Payment Date”). Interest on the Notes will accrue from the most recent date to which interest has been paid or, if no interest has been paid, from the date of issuance; provided that if there is no existing Default in the payment of interest, and if this Note is authenticated between a record date referred to on the face hereof and the next succeeding Interest Payment Date, interest shall accrue from such next succeeding Interest Payment Date; provided further that the first Interest Payment Date shall be ______. The Company will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue principal and premium, if any, from time to time on demand at a rate that is 2% per annum in excess of the rate then in effect to the extent lawful; it will pay interest (including post-petition interest in any proceeding under any Bankruptcy Law) on overdue installments of interest (without regard to any applicable grace periods) from time to time on demand at the same rate to the extent lawful. Interest will be computed on the basis of a 360-day year of twelve 30-day months.

(2) Method of Payment. The Company will pay interest on the Notes (except defaulted interest) to the Persons who are registered Holders of Notes at the close of business on the January 1 or July 1 next preceding the Interest Payment Date, even if such Notes are canceled after such record date and on or before such Interest Payment Date, except as provided in Section 2.12 of the Indenture with respect to defaulted interest. The Notes will be payable as to principal, premium, if any, and interest at the office or agency of the Company maintained for such purpose within or without the City and State of New York, or, at the option of the Company, payment of interest may be made by check mailed to the Holders at their addresses set forth in the register of Holders; provided that payment by wire transfer of immediately available funds will be required with respect to principal of and interest, premium on, all Global Notes and all other Notes the Holders of which will have provided wire transfer instructions to the Company or the Paying Agent. Such payment will be in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts.

(3) Paying Agent and Registrar. Initially, Wells Fargo Bank, National Association, the Trustee under the Indenture, will act as Paying Agent and Registrar. The Company may change any Paying Agent or Registrar without notice to any Holder. The Company or any of its Subsidiaries may act in any such capacity.

(4) Indenture. The Company issued the Notes under an Indenture dated as of July 11, 2012 (the “Indenture”) among the Company, the Trustee and the Collateral Agent. The terms of the Notes include those stated in the Indenture and those made part of the Indenture by reference to the TIA. The Notes are subject to all such terms, and Holders are referred to the Indenture and such Act for a statement of such terms. To the extent any provision of this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling. The Notes are secured obligations of the Company.

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(5) Optional Redemption.

(b) At any time prior to July 15, 2015, the Company may on any one or more occasions redeem up to 35% of the aggregate principal amount of Notes issued under the Indenture at a redemption price of 112.0% of the principal amount, plus accrued and unpaid interest, if any, to the redemption date (subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date), with the net cash proceeds of one or more Public Equity Offerings of the Company; provided that:

(1) at least 65% of the aggregate principal amount of Notes originally issued under the Indenture (excluding Notes held by the Company and its Subsidiaries) remains outstanding immediately after the occurrence of such redemption; and

(c) At any time prior to July 15, 2015, the Company may also redeem all or a part of the Notes, upon not less than 30 nor more than 60 days’ prior notice, at a redemption price equal to 100% of the principal amount of Notes redeemed plus the Applicable Premium as of, and accrued and unpaid interest, if any, to the date of redemption, subject to the rights of holders of Notes on the relevant record date to receive interest due on the relevant interest payment date.

(d) Except pursuant to the preceding two paragraphs, the Notes will not be redeemable at the Company’s option prior to July 15, 2015.

(e) On or after July 15, 2015, the Company may redeem all or a part of the Notes upon not less than 30 nor more than 60 days’ notice, at the redemption prices (expressed as percentages of principal amount) set forth below plus accrued and unpaid interest, if any, on the Notes redeemed, to the applicable redemption date, if redeemed during the twelve-month period beginning on July 15 of the years indicated below, subject to the rights of holders of Notes on the relevant record date to receive interest on the relevant interest payment date:

Year	Percentage
2015		109.0	%
2016		104.5	%

Unless the Company defaults in the payment of the redemption price, interest will cease to accrue on the Notes or portions thereof called for redemption on the applicable redemption date.

(6) Mandatory Redemption.

The Company is not required to make mandatory redemption or sinking fund payments with respect to the Notes.

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(7) Repurchase at the Option of Holder.

(a) If there is a Change of Control, the Company shall not consummate the Change of Control unless at least 30 days prior to the Change of Control, it has made an offer (a “Change of Control Offer”) to each Holder to repurchase all or any part (equal to $2,000 or an integral multiple of $1,000 in excess thereof) of each Holder’s Notes at a purchase price in cash equal to 101% of the aggregate principal amount thereof plus accrued and unpaid interest thereon to the date of purchase, subject to the rights of Holders on the relevant record date to receive interest due on the relevant interest payment date (the “Change of Control Payment”); provided that if the Change of Control Payment Date is the date of consummation of the Change of Control, the payment for the repurchase of Notes will be made at a time no later than substantially concurrently with the consummation of such Change of Control. The Company will mail a notice to each Holder setting forth the procedures governing the Change of Control Offer as required by the Indenture within the time periods required by the Indenture.

(b) If the Company consummates any Asset Sales or Applicable Transactions, within five Business Days of each date on which the aggregate amount of Excess Proceeds exceeds $2.5 million, the Company will commence an offer to all Holders of Notes (an “Asset Sale Offer”) pursuant to Section 3.10 of the Indenture to purchase the maximum principal amount of Notes that may be purchased out of the Excess Proceeds at an offer price in cash in an amount equal to 100% of the principal amount thereof plus accrued and unpaid interest, if any thereon to the date of purchase, in accordance with the procedures set forth in the Indenture. To the extent that the aggregate amount of Notes tendered pursuant to an Asset Sale Offer is less than the Excess Proceeds, the Company (or such Restricted Subsidiary) may use such deficiency for any purpose not otherwise prohibited by the Indenture. If the aggregate principal amount of Notes tendered into such Asset Sale Offer exceeds the amount of Excess Proceeds, the Trustee shall select the Notes to be purchased on a pro rata basis to the extent practicable, subject to the applicable procedures of the Depository. Holders of Notes that are the subject of an offer to purchase will receive an Asset Sale Offer from the Company prior to any related purchase date and may elect to have such Notes purchased by completing the form entitled “Option of Holder to Elect Purchase” attached to the Notes.

(c) Within five Business Days of the receipt of any Net Proceeds of any Royalty Transaction newly entered into by the Company or any of its Restricted Subsidiaries following the date of the Indenture, the Company shall mail a notice describing the applicable Royalty Transaction and offering to repurchase Notes (such offer, a “Royalty Transactions Repurchase Offer”) in an amount up to 25% of such Net Proceeds, at a price of 100% of the principal amount, plus accrued and unpaid interest, if any, to the Repurchase Date. The Royalty Transactions Repurchase Offer shall be made to all Holders and will remain open for a period of at least 20 Business Days following its commencement and not more than 30 Business Days, except to the extent that a longer period is required by applicable law (the “Royalty Transactions Repurchase Offer Period”). No later than three Business Days after the termination of the Royalty Transactions Repurchase Offer Period (the “Repurchase Date”), the Company will apply 25% of such Net Proceeds (the “Royalty Transactions Repurchase Offer Amount”) to the purchase of Notes or, if less than the Royalty Transactions Repurchase Offer Amount has been tendered, all Notes tendered in response to the Royalty Transactions Repurchase Offer. Payment for any Notes so purchased will be made in the same manner as interest payments are made. The Company’s obligation to make Royalty Transactions Repurchase Offers shall cease once the amount of repurchases completed reaches $25.0 million, and any applicable Royalty Transactions Repurchase Offer Amount shall be reduced accordingly.

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(8) Notice of Redemption. Notice of redemption will be mailed at least 30 days but not more than 60 days before the redemption date to each Holder whose Notes are to be redeemed at its registered address, except that redemption notices may be mailed more than 60 days prior to a redemption date if the notice is issued in connection with a defeasance of the Notes or a satisfaction or discharge of the Indenture. Notes in denominations larger than $2,000 may be redeemed in part but only in whole multiples of $1,000, unless all of the Notes held by a Holder are to be redeemed.

(9) Denominations, Transfer, Exchange. The Notes are in registered form without coupons in denominations of $2,000 and integral multiples of $1,000 in excess thereof. The transfer of Notes may be registered and Notes may be exchanged as provided in the Indenture. The Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements and transfer documents and the Company may require a Holder to pay any taxes and fees required by law or permitted by the Indenture. The Company need not exchange or register the transfer of any Note or portion of a Note selected for redemption, except for the unredeemed portion of any Note being redeemed in part. Also, the Company need not exchange or register the transfer of any Notes for a period of 15 days before the mailing of a notice of redemption or during the period between a record date and the corresponding Interest Payment Date.

(10) Persons Deemed Owners. The registered Holder of a Note shall be treated as its owner for all purposes.

(11) Amendment, Supplement and Waiver. Subject to certain exceptions, the Indenture, the Notes or the Note Guarantees may be amended or supplemented with the consent of the Holders of at least a majority in aggregate principal amount of the then outstanding Notes voting as a single class, and any existing Default or Event or Default or compliance with any provision of the Indenture, the Notes or the Note Guarantees may be waived with the consent of the Holders of a majority in aggregate principal amount of the then outstanding Notes voting as a single class. Without the consent of any Holder of a Note, the Indenture, the Notes or the Note Guarantees may be amended or supplemented to cure any ambiguity, defect or inconsistency, to provide for uncertificated Notes in addition to or in place of certificated Notes, to provide for the assumption of the Company’s or a Guarantor’s obligations to Holders of the Notes and Note Guarantees in case of a merger or consolidation, to make any change that would provide any additional rights or benefits to the Holders of the Notes or that does not adversely affect the legal rights under the Indenture of any such Holder or to allow any Guarantor to execute a supplemental indenture to the Indenture and/or a Note Guarantee with respect to the Notes or to release a Guarantor from its Note Guarantee in accordance with the terms of the Indenture.

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(12) Defaults and Remedies. Events of Default include: (i) default for 10 days in the payment when due of interest on the Notes; (ii) default in the payment when due (at maturity, upon redemption or otherwise) of the principal of, or premium, if any, on, the Notes; (iii) (x)failure by the Company or any of its Restricted Subsidiaries to comply with the provisions of Sections 2.06(b)(4), 3.10, 4.10, 4.15 or 5.01 of the Indenture or (y) failure by the Company or any of its Restricted Subsidiaries to comply with the provisions of Section 4.03(f) of the Indenture, and such default continues for a period of 20 days; (iv) failure by the Company or any of its Restricted Subsidiaries for 60 days after notice to the Company by the Trustee or the holders of at least 25% in aggregate principal amount of the Notes then outstanding voting as a single class to comply with any of the other agreements in the Indenture Documents; (v) default under any mortgage, indenture or instrument under which there may be issued or by which there may be secured or evidenced any Indebtedness (other than Indebtedness owed to the Company or any Restricted Subsidiary of the Company) for money borrowed by the Company or any of its Restricted Subsidiaries (or the payment of which is guaranteed by the Company or any of its Restricted Subsidiaries), whether such Indebtedness or Guarantee now exists, or is created after the date of the indenture, if that default meets certain criteria set forth in the Indenture; (vi) failure by the Company or any of its Restricted Subsidiaries to pay final judgments entered by a court or courts of competent jurisdiction aggregating in excess of $15.0 million (net of any amounts that a reputable and creditworthy insurance company has acknowledged liability for in writing), which judgments are not paid, discharged or stayed within a period of 60 days of the entry thereof; (vii) certain events of bankruptcy or insolvency with respect to the Company or any of its Restricted Subsidiaries that is a Significant Subsidiary or any group of Restricted Subsidiaries that, taken together, would constitute a Significant Subsidiary (or such events in respect of Restricted Subsidiaries that are not Significant Subsidiaries to the extent they have had or would reasonably be expected to result in a Material Adverse Effect); (viii) except as permitted by the Indenture and the Collateral Documents, with respect to any assets or property having a Fair Market Value in excess of $2.5 million, individually or in the aggregate, that constitutes or, under the indenture or the Collateral Documents is required to constitute, Collateral, (a) any of the Collateral Documents shall for any reason cease to be in full force and effect in all material respects, or the Company or a Guarantor shall so assert, or (b) any security interest created, or purported to be created, by any of the Collateral Documents shall cease to be enforceable and of the same effect and priority purported to be created thereby, except in each case solely as a result of the Collateral Agent taking or refraining from taking any action in its sole control; and (ix) except as permitted by the Indenture, any Note Guarantee is held in any judicial proceeding to be unenforceable or invalid or ceases for any reason to be in full force and effect, or any Guarantor, or any Person acting on behalf of any Guarantor, denies or disaffirms its obligations under its Note Guarantee.

If any Event of Default occurs and is continuing, the Trustee or the Holders of at least 30% in aggregate principal amount of the then outstanding Notes may declare all the Notes to be due and payable immediately. Notwithstanding the foregoing, in the case of an Event of Default arising from certain events of bankruptcy or insolvency, all outstanding Notes will become due and payable immediately without further action or notice. Holders may not enforce the Indenture or the Notes except as provided in the Indenture. Subject to certain limitations, Holders of a majority in aggregate principal amount of the then outstanding Notes may direct the Trustee in its exercise of any trust or power. The Trustee may withhold from Holders of the Notes notice of any continuing Default or Event of Default (except a Default or Event of Default relating to the payment of principal or interest or premium, if any,) if it determines that withholding notice is in their interest. The Holders of a majority in aggregate principal amount of the then outstanding Notes by notice to the Trustee may, on behalf of the Holders of all of the Notes, rescind an acceleration or waive any existing Default or Event of Default and its consequences under the Indenture except a continuing Default or Event of Default in the payment of interest or premium, if any, on, or the principal of, the Notes. The Company is required to deliver to the Trustee annually a statement regarding compliance with the Indenture, and the Company is required, upon becoming aware of any Default or Event of Default, to deliver to the Trustee a statement specifying such Default or Event of Default.

(13) Trustee Dealings with Company. The Trustee, in its individual or any other capacity, may make loans to, accept deposits from, and perform services for the Company or its Affiliates, and may otherwise deal with the Company or its Affiliates, as if it were not the Trustee.

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(14) No Recourse Against Others. No past, present or future director, officer, employee, incorporator or stockholder of the Company or any Guarantor, as such, will have any liability for any obligations of the Company or the Guarantors under the Indenture Documents or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. The waiver may not be effective to waive liabilities under the federal securities laws.

(15) Authentication. This Note will not be valid until authenticated by the manual signature of the Trustee or an authenticating agent.

(16) Abbreviations. Customary abbreviations may be used in the name of a Holder or an assignee, such as: TEN COM (= tenants in common), TEN ENT (= tenants by the entireties), JT TEN (= joint tenants with right of survivorship and not as tenants in common), CUST (= Custodian), and U/G/M/A (= Uniform Gifts to Minors Act).

(17) CUSIP Numbers. Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Company has caused CUSIP numbers to be printed on the Notes, and the Trustee may use CUSIP numbers in notices of redemption as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as contained in any notice of redemption, and reliance may be placed only on the other identification numbers placed thereon.

(18) GOVERNING LAW. THE INTERNAL LAW OF THE STATE OF NEW YORK WILL GOVERN AND BE USED TO CONSTRUE THE INDENTURE DOCUMENTS WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

The Company will furnish to any Holder upon written request and without charge a copy of the Indenture. Requests may be made to:

Nektar Therapeutics

455 Mission Bay Boulevard South
San Francisco, CA 94158
Attention: Gil Labrucherie, Esq

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Assignment Form

To assign this Note, fill in the form below:

(I) or (we) assign and transfer this Note to:
	(Insert assignee’s legal name)

(Insert assignee’s soc. sec. or tax I.D. no.)

(Print or type assignee’s name, address and zip code)

and irrevocably appoint ______________________________________________________________________________to transfer this Note on the books of the Company. The agent may substitute another to act for him.

Date:

	Your Signature:
	(Sign exactly as your name appears on the face of this Note)

Signature Guarantee*:

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

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Option of Holder to Elect Purchase

If you want to elect to have this Note purchased by the Company pursuant to Section 4.10, 4.15 or 4.16 of the Indenture, check the appropriate box below:

ØSection 4.10

ØSection 4.15

ØSection 4.16

If you want to elect to have only part of the Note purchased by the Company pursuant to Section 4.10, 4.15 or Section 4.16 of the Indenture, state the amount you elect to have purchased:

$_______________

Date:

	Your Signature:
	(Sign exactly as your name appears on the face of this Note)

Tax Identification No.:

Signature Guarantee*:

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

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Schedule of Exchanges of Interests in the Global Note *

The following exchanges of a part of this Global Note for an interest in another Global Note or for a Definitive Note, or exchanges of a part of another Global Note or Definitive Note for an interest in this Global Note, have been made:

Date of Exchange

Amount of decrease in
Principal Amount
of
this Global Note

Amount of increase in
Principal Amount
of
this Global Note

Principal Amount
of this Global Note
following such
decrease
(or increase)

Signature of authorized
signatory of Trustee or
Custodian

*	This schedule should be included only if the Note is issued in global form.

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EXHIBIT B

FORM OF CERTIFICATE OF TRANSFER

Nektar Therapeutics
455 Mission Bay Boulevard South
San Francisco, CA 94158

Wells Fargo Bank, National Association

as Trustee and Registrar – DAPS Reorg

MAC N9303-121

608 2^nd Avenue South

Minneapolis, MN 55479

Re: 12.000% Senior Secured Notes due 2017

Reference is hereby made to the Indenture, dated as of July 11, 2012 (the “Indenture”), between, Nektar Therapeutics, as issuer (the “Company”) and Wells Fargo Bank, National Association as trustee (in such capacity, the “Trustee”) and collateral agent (in such capacity, the “Collateral Agent”). Capitalized terms used but not defined herein shall have the meanings given to them in the Indenture.

___________________, (the “Transferor”) owns and proposes to transfer the Note[s] or interest in such Note[s] specified in Annex A hereto, in the principal amount of $___________ in such Note[s] or interests (the “Transfer”), to ___________________________ (the “Transferee”), as further specified in Annex A hereto. In connection with the Transfer, the Transferor hereby certifies that:

[CHECK ALL THAT APPLY]

1. ¨ Check if Transferee will take delivery of a beneficial interest in the 144A Global Note or a Restricted Definitive Note pursuant to Rule 144A. The Transfer is being effected pursuant to and in accordance with Rule 144A under the Securities Act of 1933, as amended (the “Securities Act”), and, accordingly, the Transferor hereby further certifies that the beneficial interest or Definitive Note is being transferred to a Person that the Transferor reasonably believes is purchasing the beneficial interest or Definitive Note for its own account, or for one or more accounts with respect to which such Person exercises sole investment discretion, and such Person and each such account is a “qualified institutional buyer” within the meaning of Rule 144A in a transaction meeting the requirements of Rule 144A, and such Transfer is in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the 144A Global Note and/or the Restricted Definitive Note and in the Indenture and the Securities Act.

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2. ¨ Check if Transferee will take delivery of a beneficial interest in the Regulation S Global Note or a Restricted Definitive Note pursuant to Regulation S. The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and, accordingly, the Transferor hereby further certifies that (i) the Transfer is not being made to a Person in the United States and (x) at the time the buy order was originated, the Transferee was outside the United States or such Transferor and any Person acting on its behalf reasonably believed and believes that the Transferee was outside the United States or (y) the transaction was executed in, on or through the facilities of a designated offshore securities market and neither such Transferor nor any Person acting on its behalf knows that the transaction was prearranged with a buyer in the United States, (ii) no directed selling efforts have been made in contravention of the requirements of Rule 903(b) or Rule 904(b) of Regulation S under the Securities Act and (iii) the transaction is not part of a plan or scheme to evade the registration requirements of the Securities Act. Upon consummation of the proposed transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on Transfer enumerated in the Private Placement Legend printed on the Regulation S Global Note and/or the Restricted Definitive Note and in the Indenture and the Securities Act.

3. ¨ Check and complete if Transferee will take delivery of a beneficial interest in the IAI Global Note or a Restricted Definitive Note pursuant to any provision of the Securities Act other than Rule 144A or Regulation S. The Transfer is being effected in compliance with the transfer restrictions applicable to beneficial interests in Restricted Global Notes and Restricted Definitive Notes and pursuant to and in accordance with the Securities Act and any applicable blue sky securities laws of any state of the United States, and accordingly the Transferor hereby further certifies that (check one):

(a) ¨ such Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act;

(b) ¨ such Transfer is being effected to the Company or a subsidiary thereof;

(c) ¨ such Transfer is being effected pursuant to an effective registration statement under the Securities Act and in compliance with the prospectus delivery requirements of the Securities Act;

(d) ¨ such Transfer is being effected to an Institutional Accredited Investor and pursuant to an exemption from the registration requirements of the Securities Act other than Rule 144A, Rule 144, Rule 903 or Rule 904, and the Transferor hereby further certifies that it has not engaged in any general solicitation within the meaning of Regulation D under the Securities Act and the Transfer complies with the transfer restrictions applicable to beneficial interests in a Restricted Global Note or Restricted Definitive Notes and the requirements of the exemption claimed, which certification is supported by (1) a certificate executed by the Transferee in the form of Exhibit D to the Indenture and (2) an Opinion of Counsel provided by the Transferor or the Transferee (a copy of which the Transferor has attached to this certification), to the effect that such Transfer is in compliance with the Securities Act. Upon consummation of the proposed transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the IAI Global Note and/or the Restricted Definitive Notes and in the Indenture and the Securities Act.

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4. ¨ Check if Transferee will take delivery of a beneficial interest in an Unrestricted Global Note or of an Unrestricted Definitive Note.

(a) ¨ Check if Transfer is pursuant to Rule 144. (i) The Transfer is being effected pursuant to and in accordance with Rule 144 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture.

(b) ¨ Check if Transfer is Pursuant to Regulation S. (i) The Transfer is being effected pursuant to and in accordance with Rule 903 or Rule 904 under the Securities Act and in compliance with the transfer restrictions contained in the Indenture and any applicable blue sky securities laws of any state of the United States and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will no longer be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes, on Restricted Definitive Notes and in the Indenture.

(c) ¨ Check if Transfer is Pursuant to Other Exemption. (i) The Transfer is being effected pursuant to and in compliance with an exemption from the registration requirements of the Securities Act other than Rule 144, Rule 903 or Rule 904 and in compliance with the transfer restrictions contained in the Indenture and (ii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act. Upon consummation of the proposed Transfer in accordance with the terms of the Indenture, the transferred beneficial interest or Definitive Note will not be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Global Notes or Restricted Definitive Notes and in the Indenture.

This certificate and the statements contained herein are made for your benefit and the benefit of the Company.


		[Insert Name of Transferor]

	By:
		Name:
		Title:

Signature Guarantee*:

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

Dated:

B-3

ANNEX A TO CERTIFICATE OF TRANSFER

1. The Transferor owns and proposes to transfer the following:

[CHECK ONE OF (a) OR (b)]

(a) ¨ a beneficial interest in the:

(i) ¨ 144A Global Note (CUSIP _________), or

(ii) ¨ Regulation S Global Note (CUSIP _________), or

(iii) ¨ IAI Global Note (CUSIP _________); or

(b) ¨ a Restricted Definitive Note.

2. After the Transfer the Transferee will hold:

[CHECK ONE]

(a) ¨ a beneficial interest in the:

(i) ¨ 144A Global Note (CUSIP _________), or

(ii) ¨ Regulation S Global Note (CUSIP _________), or

(iii) ¨ IAI Global Note (CUSIP _________); or

(iv) ¨ Unrestricted Global Note (CUSIP _________); or

(b) ¨ a Restricted Definitive Note; or

in accordance with the terms of the Indenture.

B-4

EXHIBIT C

FORM OF CERTIFICATE OF EXCHANGE

Nektar Therapeutics
455 Mission Bay Boulevard South
San Francisco, CA 94158

Wells Fargo Bank, National Association

as Trustee and Registrar – DAPS Reorg

MAC N9303-121

608 2^nd Avenue South

Minneapolis, MN 55479

Re: 12.000% Senior Secured Notes due 2017

(CUSIP ____________)

__________________________, (the “Owner”) owns and proposes to exchange the Note[s] or interest in such Note[s] specified herein, in the principal amount of $____________ in such Note[s] or interests (the “Exchange”). In connection with the Exchange, the Owner hereby certifies that:

1. Exchange of Restricted Definitive Notes or Beneficial Interests in a Restricted Global Note for Unrestricted Definitive Notes or Beneficial Interests in an Unrestricted Global Note

(a) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to beneficial interest in an Unrestricted Global Note. In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for a beneficial interest in an Unrestricted Global Note in an equal principal amount, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Global Notes and pursuant to and in accordance with the Securities Act of 1933, as amended (the “Securities Act”) and (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act.

(b) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to Unrestricted Definitive Note. In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

C-1

(c) ¨ Check if Exchange is from Restricted Definitive Note to beneficial interest in an Unrestricted Global Note. In connection with the Owner’s Exchange of a Restricted Definitive Note for a beneficial interest in an Unrestricted Global Note, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to Restricted Definitive Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the beneficial interest is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

(d) ¨ Check if Exchange is from Restricted Definitive Note to Unrestricted Definitive Note. In connection with the Owner’s Exchange of a Restricted Definitive Note for an Unrestricted Definitive Note, the Owner hereby certifies (i) the Unrestricted Definitive Note is being acquired for the Owner’s own account without transfer, (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to Restricted Definitive Notes and pursuant to and in accordance with the Securities Act, (iii) the restrictions on transfer contained in the Indenture and the Private Placement Legend are not required in order to maintain compliance with the Securities Act and (iv) the Unrestricted Definitive Note is being acquired in compliance with any applicable blue sky securities laws of any state of the United States.

2. Exchange of Restricted Definitive Notes or Beneficial Interests in Restricted Global Notes for Restricted Definitive Notes or Beneficial Interests in Restricted Global Notes

(a) ¨ Check if Exchange is from beneficial interest in a Restricted Global Note to Restricted Definitive Note. In connection with the Exchange of the Owner’s beneficial interest in a Restricted Global Note for a Restricted Definitive Note with an equal principal amount, the Owner hereby certifies that the Restricted Definitive Note is being acquired for the Owner’s own account without transfer. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the Restricted Definitive Note issued will continue to be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the Restricted Definitive Note and in the Indenture and the Securities Act.

(b) ¨ Check if Exchange is from Restricted Definitive Note to beneficial interest in a Restricted Global Note. In connection with the Exchange of the Owner’s Restricted Definitive Note for a beneficial interest in the [CHECK ONE] ¨ 144A Global Note, ¨ Regulation S Global Note, ¨ IAI Global Note with an equal principal amount, the Owner hereby certifies (i) the beneficial interest is being acquired for the Owner’s own account without transfer and (ii) such Exchange has been effected in compliance with the transfer restrictions applicable to the Restricted Global Notes and pursuant to and in accordance with the Securities Act, and in compliance with any applicable blue sky securities laws of any state of the United States. Upon consummation of the proposed Exchange in accordance with the terms of the Indenture, the beneficial interest issued will be subject to the restrictions on transfer enumerated in the Private Placement Legend printed on the relevant Restricted Global Note and in the Indenture and the Securities Act.

This certificate and the statements contained herein are made for your benefit and the benefit of the Company.


		[Insert Name of Transferor]

	By:
		Name:
		Title:

C-2

Signature Guarantee*:

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

Dated:

C-3

EXHIBIT D

FORM OF CERTIFICATE FROM
ACQUIRING INSTITUTIONAL ACCREDITED INVESTOR

Nektar Therapeutics
455 Mission Bay Boulevard South
San Francisco, CA 94158

Wells Fargo Bank, National Association

as Trustee and Registrar – DAPS Reorg

MAC N9303-121

608 2^nd Avenue South

Minneapolis, MN 55479

Re: 12.000% Senior Secured Notes due 2017

In connection with our proposed purchase of $____________ aggregate principal amount of:

(a) ¨ a beneficial interest in a Global Note, or

(b) ¨ a Definitive Note,

we confirm that:

1. We understand that any subsequent transfer of the Notes or any interest therein is subject to certain restrictions and conditions set forth in the Indenture and the undersigned agrees to be bound by, and not to resell, pledge or otherwise transfer the Notes or any interest therein except in compliance with, such restrictions and conditions and the Securities Act of 1933, as amended (the “Securities Act”).

2. We understand that the offer and sale of the Notes have not been registered under the Securities Act, and that the Notes and any interest therein may not be offered or sold except as permitted in the following sentence. We agree, on our own behalf and on behalf of any accounts for which we are acting as hereinafter stated, that if we should sell the Notes or any interest therein, we will do so only (A) to the Company or any subsidiary thereof, (B) in accordance with Rule 144A under the Securities Act to a “qualified institutional buyer” (as defined therein), (C) to an institutional “accredited investor” (as defined below) that, prior to such transfer, furnishes (or has furnished on its behalf by a U.S. broker-dealer) to you and to the Company a signed letter substantially in the form of this letter and an Opinion of Counsel in form reasonably acceptable to the Company to the effect that such transfer is in compliance with the Securities Act, (D) outside the United States in accordance with Rule 904 of Regulation S under the Securities Act, (E) pursuant to the provisions of Rule 144 under the Securities Act or (F) pursuant to an effective registration statement under the Securities Act, and we further agree to provide to any Person purchasing the Definitive Note or beneficial interest in a Global Note from us in a transaction meeting the requirements of clauses (A) through (D) of this paragraph a notice advising such purchaser that resales thereof are restricted as stated herein.

D-1

3. We understand that, on any proposed resale of the Notes or beneficial interest therein, we will be required to furnish to you and the Company such certifications and, except in the case of a resale pursuant to Rule 144 under the Securities Act, legal opinions and other information as you and the Company may reasonably require to confirm that the proposed sale complies with the foregoing restrictions. We further understand that the Notes purchased by us will bear a legend to the foregoing effect.

4. We are an institutional “accredited investor” (as defined in Rule 501(a)(1), (2), (3) or (7) of Regulation D under the Securities Act) and have such knowledge and experience in financial and business matters as to be capable of evaluating the merits and risks of our investment in the Notes, and we and any accounts for which we are acting are each able to bear the economic risk of our or its investment.

5. We are acquiring the Notes or beneficial interest therein purchased by us for our own account or for one or more accounts (each of which is an institutional “accredited investor”) as to each of which we exercise sole investment discretion; provided that, by making such representations, we do not agree to hold any of the Notes for any minimum or other specific term and reserve the right to dispose of the Notes at any time in accordance with an exemption under the Securities Act or pursuant to an effective registration statement thereunder.

You and the Company are entitled to rely upon this letter and are irrevocably authorized to produce this letter or a copy hereof to any interested party in any administrative or legal proceedings or official inquiry with respect to the matters covered hereby.


		[Insert Name of Accredited Investor]


	By:
		Name:
		Title:

Signature Guarantee*:

* Participant in a recognized Signature Guarantee Medallion Program (or other signature guarantor acceptable to the Trustee).

Dated:

D-2

EXHIBIT E

[FORM OF SUPPLEMENTAL INDENTURE
TO BE DELIVERED BY SUBSEQUENT GUARANTORS]

Supplemental Indenture (this “Supplemental Indenture”), dated as of ________________, 20__, among __________________ (the “Guaranteeing Subsidiary”), a subsidiary of Nektar Therapeutics (or its permitted successor), a Delaware corporation (the “Company”), the Company, the other Guarantors (as defined in the Indenture referred to herein) and Wells Fargo Bank, National Association, as trustee (the “Trustee”) and collateral agent under the Indenture referred to below.

WITNESSETH

WHEREAS, the Company has heretofore executed and delivered to the Trustee an indenture (the “Indenture”), dated as of July 11, 2012 providing for the issuance of 12.000% Senior Secured Notes due 2017(the “Notes”);

WHEREAS, the Indenture provides that under certain circumstances the Guaranteeing Subsidiary shall execute and deliver to the Trustee a supplemental indenture pursuant to which the Guaranteeing Subsidiary shall unconditionally guarantee all of the Company’s Obligations under the Notes and the Indenture on the terms and conditions set forth herein (the “Note Guarantee”); and

WHEREAS, pursuant to Section 9.01 of the Indenture, the Trustee is authorized to execute and deliver this Supplemental Indenture.

NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby acknowledged, the Guaranteeing Subsidiary and the Trustee mutually covenant and agree for the equal and ratable benefit of the Holders of the Notes as follows:

1. Capitalized Terms. Capitalized terms used herein without definition shall have the meanings assigned to them in the Indenture.

2. Agreement to Guarantee. The Guaranteeing Subsidiary hereby agrees to provide an unconditional Guarantee on the terms and subject to the conditions set forth in the Note Guarantee and in the Indenture including but not limited to Article 11 thereof.

4. No Recourse Against Others. No past, present or future director, officer, employee, incorporator, stockholder or agent of the Guaranteeing Subsidiary, as such, shall have any liability for any obligations of the Company or any Guaranteeing Subsidiary under the Notes, any Note Guarantees, the Indenture or this Supplemental Indenture or for any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder of the Notes by accepting a Note waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Notes. Such waiver may not be effective to waive liabilities under the federal securities laws and it is the view of the SEC that such a waiver is against public policy.

5. NEW YORK LAW TO GOVERN. THE INTERNAL LAW OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS SUPPLEMENTAL INDENTURE WITHOUT GIVING EFFECT TO APPLICABLE PRINCIPLES OF CONFLICTS OF LAW TO THE EXTENT THAT THE APPLICATION OF THE LAWS OF ANOTHER JURISDICTION WOULD BE REQUIRED THEREBY.

6. Counterparts. The parties may sign any number of copies of this Supplemental Indenture. Each signed copy shall be an original, but all of them together represent the same agreement.

7. Effect of Headings. The Section headings herein are for convenience only and shall not affect the construction hereof.

8. The Trustee. The Trustee shall not be responsible in any manner whatsoever for or in respect of the validity or sufficiency of this Supplemental Indenture or for or in respect of the recitals contained herein, all of which recitals are made solely by the Guaranteeing Subsidiary and the Company.

E-2

IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, all as of the date first above written.

Dated: _______________, 20___

	[Guaranteeing Subsidiary]

	By:
		Name:
		Title:

	NEKTAR THERAPEUTICS

	By:
		Name:
		Title:

	[Existing Guarantors]

	By:
		Name:
		Title:

	WELLS FARGO BANK, NATIONAL ASSOCIATION,
	as Trustee

	By:
		Authorized Signatory

E-3

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