THIS LEASE, is entered into on this 17^th day of September, 2012, (“Effective Date”) between SI 34, LLC, a California limited liability company, whose address is 10600 North De Anza Boulevard, Suite 200, Cupertino, CA 95014, and Palo Alto Networks, Inc., a Delaware corporation, whose address is 3300 Olcott Street, Santa Clara, CA 95054, hereinafter called respectively Landlord and Tenant. Landlord and Tenant are collectively referred to in this Lease as the “Parties”.

i. Building A.  The term “Building A” shall mean that building containing approximately one hundred fifty one thousand thirty five (151,035) rentable square feet and all improvements owned by Landlord and installed therein, shown as Building A on Exhibit “A” attached hereto and commonly known as 4401 Great America Parkway, Santa Clara, California. Building A is comprised of two (2) parts: a 6-story portion containing approximately one hundred fifty thousand one hundred twenty eight (150,128) rentable square feet, and a corridor at the third (3^rd) floor containing approximately nine hundred seven (907) rentable square feet that connects Building A and Building B (defined below).

ii. Building B.  The term “Building B” or “Building” shall mean that 6-story building containing approximately one hundred fifty thousand one hundred twenty eight (150,128) rentable square feet and all improvements owned by Landlord and installed therein, shown as Building B on Exhibit “A” attached hereto and commonly known as 4301 Great America Parkway, Santa Clara, California.

iii. Premises.  The term “Premises” shall initially mean the approximately forty five thousand (45,000) rentable square feet located on the 5^th

and 6^th floors of the Building and a server room in the Building containing approximately two hundred (200) rentable square feet of space (the “Initial Space”). Commencing on the Expansion Space Commencement Date (defined in Section 4 below), the term “Premises” shall mean the Building. The Building, less the Initial Space, is referred to in this Lease as the “Expansion Space”. Unless expressly provided otherwise, the term Premises as used herein shall include the Tenant Improvements (defined in Section 6.B below).

iv.  Common Area.  As used in this Lease, “Common Area” means the driveways, parking areas, sidewalks, and other facilities within the Project outside of the Project buildings, to the extent they are designated by Landlord for the common use and convenience of the tenants, occupants and other authorized users of the Project or Building. Until the Expansion Space Commencement Date, the term “Common Area” shall also include the first (1^st) floor lobby and all stairs, elevators, hallways and other areas located in the Building (such lobby, stairs, elevators, hallways and other Building interior areas being the “Building Common Area”). From and after the Expansion Space Commencement Date the Building Common Area shall no longer be considered Common Area, but shall be part of the Premises leased to Tenant hereunder. Tenant acknowledges that a parking easement affecting the Project for the benefit of the adjacent property currently owned by Landlord and located at 4551 Great America Parkway, Santa Clara, California (“4551 GAP”), allows 4551 GAP the unrestricted use of ninety seven (97) parking spaces in the area designated as the 4551 GAP parking area on Exhibit “A”.

v. Project. The term “Project” shall mean the real property consisting of approximately thirteen and one-half (13.5) acres at the corner of Great America Parkway and Mission College Boulevard in Santa Clara, California upon which the Building and Building A are located, together with all improvements constructed thereon from

time to time, currently consisting of the Building, Building A and the Common Area, as indicated on Exhibit “A” attached hereto.

B.  Grant:  Landlord hereby leases the Premises to Tenant, and Tenant hires the Premises from Landlord. Concurrently with this Lease, Landlord and Tenant are entering into that certain Lease for Building A (the “Building A Lease”). Notwithstanding the Effective Date inserted in the introductory paragraph of this Lease above, this Lease shall not become effective unless and until the Building A Lease is also fully executed by Landlord and Tenant.

Subject to the provisions of this Lease and such rules and regulations as Landlord may from time to time prescribe, Tenant shall have the nonexclusive right, in common with other tenants of the Project and other users permitted by Landlord, to initially use not more than one hundred forty four (144) parking spaces within the Common Area designated, on “Exhibit A”, and the non-exclusive right, in common with other tenants of the Project and other users permitted by Landlord, to use the other Common Area within the Project and Building. Upon the commencement of the Lease Term as it relates to the Expansion Space, the number of non-exclusive parking spaces available to Tenant shall be increased by three hundred thirty nine (339), for a total of four hundred eighty three (483) parking spaces in the Common Area.

Landlord shall have the right, in its sole and absolute discretion, subject to the provisions of this Section 2.B, from time to time, to: (a) make changes to the Common Area and/or the Project (but not the Building), including, without limitation, changes in the location, size, shape and number of entrances, corridors, elevators, foyers, lobbies, restrooms, stairways and other similar facilities in other buildings in the Project (but not the Building), if applicable, and driveways, entrances, circulation drives, parking spaces, parking areas, direction of driveways, landscaped areas and walkways; (b) upon not less than three (3) business days prior written notice (except in the event of emergency or need to perform immediate repairs, in which events no prior notice shall be required) close temporarily any of the Common Area for maintenance and repair

purposes so long as reasonable access to the Premises remains available; (c) add minor improvements (e.g., fencing) to the Common Area (provided that, during the course of construction of such minor improvements, Tenant’s use of the parking area shall not be affected); and (d) use the Common Area while engaged in making minor additional improvements to the Common Area and repairs to the Building and/or the Project, all of which are hereby consented to by Tenant. Notwithstanding this paragraph above, Landlord shall not cause or permit the Project parking areas to be used as parking for events at the planned nearby football stadium (other than by Tenant’s and other Project tenants’ employees). Subject to Tenant’s rights under this Lease and the Building A Lease, Landlord reserves the absolute right to effect such other tenancies in the other Project buildings, if applicable, as Landlord in the exercise of its sole business judgment shall determine to best promote the interests of Landlord. Tenant has not relied on the fact, nor has Landlord represented, that any specific tenant or type or number of tenants shall occupy any space in the Building (or other Project buildings, if applicable), or that any specific tenant or type of tenant shall be excluded from occupying any space in the Building (or other Project buildings, if applicable). In exercising the foregoing rights, Landlord shall not unreasonably interfere with or disturb Tenant’s use of the Premises or Tenant’s access thereto or materially adversely affect Tenant’s rights under this Lease or materially increase Tenant’s obligations under this Lease.

The parties acknowledge that there is potential to construct additional buildings at the Project; however, Landlord agrees that no additional buildings will be constructed at the Project during the initial Lease Term without the express consent and approval by Tenant, which may be withheld in Tenant’s sole discretion.

Landlord and Tenant have agreed to use the square footage numbers set forth in this Lease as the basis of calculating the rent due under this Lease and Tenant’s Allocable Share (defined in Section 9.E below), and the rent due under this Lease and Tenant’s Allocable Share shall not be subject to revision if the actual square footages are more or less than as stated in this Lease,

except as expressly provided elsewhere in this Lease (for example, in the event of a partial taking of the Project as described in Section 17 below). No representation or warranty of any kind, express or implied, is given to Tenant with respect to the square footage of the Premises, Building or any other portion of the Project. Tenant shall have the sole responsibility for confirming the actual square footage of the Premises prior to entering into this Lease. Landlord shall have no liability to Tenant if the square footages described in this Lease differs from the actual square footages.

The parties acknowledge that the Building is currently leased to Yahoo! Inc. (“Yahoo”) pursuant to an existing lease with Landlord (the “Yahoo Lease”). Landlord represents that it has entered into a written agreement with Yahoo pursuant to which the Yahoo Lease is to terminate and Yahoo is required to vacate the Building prior to the Commencement Date (the “Yahoo Termination Agreement”). If Yahoo fails to vacate the Initial Space prior to the Commencement Date, or the Expansion Space prior to the Expansion Space Delivery Date, Landlord agrees to enforce Yahoo’s agreement to vacate the Initial Space or the Expansion Space, as applicable, as aforesaid using all available lawful methods, including, without limitation, commencing and prosecuting and unlawful detainer action and lawful eviction.

Tenant shall use the Premises as permitted under applicable zoning laws only for the following purposes: General office and administration, sales, marketing, research and development, engineering, electronic lab other uses incidental thereto (the “Permitted Uses”). Tenant shall not use the Premises for any use other than the Permitted Use without the prior written consent of Landlord. Tenant have the right to use only the number of parking spaces allocated to Tenant under this Lease. All commercial trucks and delivery vehicles shall be (i) parked at the rear of the Building, (ii) loaded and unloaded in a manner which does not interfere with the businesses of other occupants of

the Project, and (iii) permitted to remain within the Project only so long as is reasonably necessary to complete the loading and unloading. Landlord reserves the right to impose such additional reasonable rules and regulations with respect to the Common Area as Landlord deems reasonably necessary to operate the Project in a manner which protects the quiet enjoyment of all tenants in the Project. Landlord makes no representation or warranty that any specific use of the Premises desired by Tenant is permitted pursuant to any Laws (as defined in Section 8.C below).

Neither Tenant nor Tenant’s Agents shall commit on the Premises or any portion of the Project any waste, nuisance, or other act or thing which may disturb the quiet enjoyment of any other tenant or user of the Project, nor allow any sale by auction or any other use of the Premises for an unlawful purpose. Tenant shall not (i) damage or overload the electrical, mechanical or plumbing systems of the Premises, (ii) attach, hang or suspend anything from the ceiling, walls or columns of the Building in excess of the load limits for which such ceiling, walls or columns are designed, or set any load on the floor in excess of the load limits for which such floors are designed, or (iii) generate dust, fumes or waste products which create a fire or health hazard or damage the Premises or any portion of the Project, including without limitation the soils or ground water in or around the Project. No materials, supplies, equipment, finished products or semi-finished products, raw materials or articles of any nature, or any waste materials, refuse, scrap or debris, shall be stored upon or permitted to remain on any portion of the Project outside of the Building without Landlord’s prior approval, which approval may be withheld in its sole and absolute discretion.

Tenant shall not place or permit to be placed, in, upon or about the exterior of the Building any signs not approved by the City of Santa Clara (“City”) and other governing authority having jurisdiction. Tenant shall not place or permit to be placed upon the Premises any signs,

advertisements or notices without the written consent of Landlord as to type, size, design, lettering, coloring and location, which consent will not be unreasonably withheld, conditioned or delayed. Any sign placed on the Premises shall be removed by Tenant, at its sole cost, prior to the expiration or sooner termination of the Lease, and Tenant shall repair, at its sole cost, any damage or injury to the Premises caused thereby, and if not so removed, then Landlord may have same so removed at Tenant’s expense. Subject to the requirements of this Section 3.C above, Landlord consents to Tenant’s placement of two (2) Building-mounted exterior signs and Tenant’s Allocable Share of monument signage on the monument signs within the Project, at Tenant’s sole cost and expense. Tenant shall have the exclusive right to all exterior Building-mounted signage and to the existing monument sign at the driveway to the Building.

This Lease is subject to the effect of (i) any covenants, conditions, restrictions, easements, mortgages or deeds of trust, ground leases, rights of way of record and any other matters or documents of record; and (ii) any zoning laws of the city, county and state where the Building is situated (collectively referred to herein as “Restrictions”) and Tenant shall conform to and shall not violate the terms of any such Restrictions.

As used in this Lease, “Sustainability Requirements” means any and all Laws relating to any “green building” or other environmental sustainability practices and requirements now or hereafter in effect or imposed by any governmental authority or applicable Laws from time to time (“Sustainability Requirements”). Without limiting the scope of any Sustainability Requirements that may be in effect from time to time, Tenant acknowledges that Sustainability Requirements may address whole-building or premises operations, construction issues, maintenance issues and other issues, including without limitation requirements relating to: chemical use; indoor air quality; energy and water

efficiency; recycling programs; interior and exterior maintenance programs; systems upgrades to meet green or sustainable building energy, water, air quality, and lighting performance standards; construction methods and procedures; material purchases; disposal of garbage, trash, rubbish and other refuse and waste; and the use of proven energy and carbon reduction measures. Neither Tenant nor Tenant’s Agents shall use or operate the Premises in a manner that will cause any part of the Project to be in non-compliance with any Sustainability Requirements in effect from time to time.

The Lease term (“Lease Term”) as it relates to the Initial Space shall be for one hundred twenty-nine (129) months, commencing on the later of (i) November 1, 2012, or (ii) the date that Landlord delivers the Initial Space to Tenant in the condition required by Section 6.A (the “Initial Space Delivery Date”) (such later date being the “Commencement Date”), and ending one hundred twenty-nine (129) months thereafter (“Expiration Date”), subject to extension or sooner termination as described in this Lease.

The Lease Term as it relates to the Expansion Space shall commence on the later of (i) August 1, 2013, or (ii) the date that Landlord delivers the Expansion Space to Tenant in the condition required by Section 6.A (the “Expansion Space Delivery Date”) (such later date being the “Expansion Space Commencement Date”), and ending on the Expiration Date, subject to extension or sooner termination as described in this Lease.

During the period between the date of this Lease and the Expansion Space Commencement Date (the “Interim Period”), Landlord shall have possession and control of the Expansion Space, including, without limitation, the right to lease the Expansion Space to third parties (including Yahoo!); provided, however, that Landlord and Tenant may process, review and approve the Tenant Improvement Plans and Specifications during the Interim Period and Tenant shall be permitted access to the Expansion Space during

that period solely for the purposes of taking measurements and otherwise accommodating the design process.

In addition to all other sums payable by Tenant under this Lease, Tenant shall pay as base monthly rent (“Base Monthly Rent”) for the Premises the following amount:

Base Monthly Rent shall be due and payable only as to that portion of the Premises as to which the Lease Term has commenced. The starting Base Monthly Rent for the Expansion Space shall be calculated based on the amount per agreed upon rentable square feet described in the schedule above in effect as of the Expansion Space Commencement Date. For illustration purposes only, if the Commencement Date occurs November 1, 2012 and the Expansion Space Commencement Date occurs on August 1, 2013, the Base Monthly Rent schedule would be as follows:

Base Monthly Rent shall be due in advance on or before the first day of each calendar month during the Lease Term. All sums payable by Tenant under this Lease shall be paid to Landlord in lawful money of the United States of America, without offset or deduction and except as otherwise expressly provided in this Lease without prior notice or demand, at the address specified in Section 1 of this Lease or at such place or places as may be designated in writing by Landlord during the Lease Term. Base

Monthly Rent for any period less than a calendar month shall be a pro rata portion of the monthly installment based on the number of days in the partial calendar month; provided that if this Lease terminates due to Tenant’s default, Tenant shall not be relieved of the obligation to pay future accruing rent, and the provisions of Section 14 shall control. Concurrently with Tenant’s execution of this Lease, Tenant shall pay to Landlord the sum of One Hundred One Thousand Two Hundred Fifty Dollars ($101,250) as a deposit to be applied on the Commencement Date against the Base Monthly Rent due for the fifth (5th) month of the Lease Term plus the amount of Ten Thousand Three Hundred Fifty Dollars ($10,350) as the estimated amount of Reimbursable Operating Costs due for the first (1st) month of the Lease Term.

Tenant hereby acknowledges that late payment by Tenant to Landlord of Base Monthly Rent and other sums due hereunder will cause Landlord to incur costs not contemplated by this Lease, the exact amount of which is extremely difficult to ascertain. Such costs include but are not limited to: administrative, processing, accounting, and late charges which may be imposed on Landlord by the terms of any contract, revolving credit, mortgage, or trust deed covering the Premises. Accordingly, if any installment of Base Monthly Rent or other sum due from Tenant shall not be received by Landlord or its designee within five (5) days after it is due, Tenant shall pay to Landlord a late charge equal to three (3%) percent of such overdue amount, which late charge shall be due and payable on the same date that the overdue amount was due. Notwithstanding the foregoing, Tenant shall be entitled to one (1) notice and five (5)-day cure period each calendar year before the first late charge for such calendar year shall accrue. No notice or additional cure period shall be required or apply for the second or any subsequent late charge during a calendar year. The parties agree that such late charge represents a fair and reasonable estimate of the costs Landlord will incur by reason of late payment by Tenant, excluding interest and attorneys fees and

costs. If any Base Monthly Rent or other sum due from Tenant remains delinquent for a period in excess of thirty (30) days then, in addition to such late charge, Tenant shall pay to Landlord interest on any rent that is not paid when due at the Agreed Interest Rate (defined in Section 14.B) from the date such amount became due until paid. Acceptance by Landlord of such late charge or interest shall not constitute a waiver of Tenant’s default with respect to such overdue amount nor prevent Landlord from exercising any of the other rights and remedies granted hereunder. In the event that a late charge is payable hereunder, whether or not collected, for three (3) consecutive installments of Base Monthly Rent, then the Base Monthly Rent shall automatically become due and payable quarterly in advance, rather than monthly, notwithstanding any provision of this Lease to the contrary. In no event shall this provision for a late charge be deemed to grant to Tenant a grace period or extension of time within which to pay any amount due under this Lease.

Within seven (7) days after Tenant’s execution of this Lease, Tenant shall provide Landlord, as security for Tenant’s obligations under this Lease, an irrevocable standby letter of credit (as replaced or amended pursuant to this Section 5, the “Letter of Credit”) in the amount of Three Hundred Thousand Dollars ($300,000) in a form, containing terms, issued by a lending institution, and drawable in a location all reasonably acceptable to Landlord (the Letter of Credit and all proceeds thereof, and all other sums paid to Landlord in substitution of the foregoing, being referred to as the “Security Deposit”). Landlord hereby approves either JPMorgan Chase Bank N.A. or Silicon Valley Bank as an acceptable issuer of the Letter of Credit, so long as there is no material negative change in such issuer’s credit rating or ability to meet its obligations. If the issuing bank does not provide for local draws on the Letter of Credit, the Letter of Credit shall permit draws presented by telefacsimile (“fax”), with such fax presentation being considered the sole operative instrument of drawing, not contingent upon presentation of the original Letter of Credit or

original documents with respect thereto. If Tenant defaults beyond applicable notice and cure periods with respect to any provisions of this Lease, including but not limited to (i) the provisions relating to payment of Base Monthly Rent or other charges in default, or any other amount which Landlord may spend or become obligated to spend by reason of Tenant’s default, or (ii) breach of any of Tenant’s obligations under this Section 5, Landlord shall be entitled to draw the full amount of the Letter of Credit at any time by certifying the occurrence of such default to the issuer; thereafter, the Security Deposit shall be in the form of cash held by Landlord. Tenant’s failure to timely comply with its obligations under this Section 5 shall constitute a material default of Tenant, for which no notice or opportunity to cure shall apply or be required before Landlord is entitled to draw the full amount of the Letter of Credit. The Security Deposit shall be held by Landlord as security for the faithful performance by Tenant of every term, covenant and condition of this Lease applicable to Tenant, and not as prepayment of rent. Landlord may, but shall not be obligated to, and without waiving or releasing Tenant from any obligation under this Lease, use, apply or retain the whole or any part of the Security Deposit reasonably necessary for the payment of any amount which Landlord may spend by reason of Tenant’s default or as necessary to compensate Landlord for any loss or damage which Landlord may suffer by reason of Tenant’s default, including without limitation loss of future rents due under this Lease upon termination of this Lease due to a default by Tenant and other damages recoverable under California Civil Code Section 1951.2 under this Lease. Landlord shall not be deemed a trustee of the Security Deposit or any other funds held by Landlord, and Landlord shall not be required to keep the Security Deposit or any such other funds separate from its general funds. The Security Deposit and such other funds shall not bear interest for the benefit of Tenant. If Tenant shall default beyond applicable notice and cure periods in the payment of Base Monthly Rent or any scheduled payment of Reimbursable Operating Costs more than three (3) times in any twelve (12) month period, irrespective of whether or not such default is cured, then the Letter of Credit or cash Security Deposit held by Landlord shall, within ten (10) days after demand by Landlord,

be increased by Tenant to an amount equal to three (3) times the Base Monthly Rent then payable under this Lease.

Tenant shall keep the Letter of Credit in effect during the entire Lease Term under this Lease, as the same may be extended, plus a period of four (4) weeks following the Expiration Date. At least thirty (30) days prior to expiration of any Letter of Credit, the term thereof shall be renewed or extended for a period of at least one (1) year. If the issuer of the Letter of Credit becomes insolvent, is closed or is placed in receivership, or if Landlord is notified that the Letter of Credit will not be honored, or if there is a material negative change in the issuer’s credit rating or ability to meet its obligations, then within five (5) business days after written demand from Landlord, Tenant shall deliver to Landlord a new Letter of Credit issued by a lending institution acceptable to Landlord in Landlord’s reasonable discretion, and otherwise meeting the requirements of this Section 5. In the event Landlord draws against the Letter of Credit and the Security Deposit reverts to a cash Security Deposit held by Landlord, Tenant shall replenish the remaining Security Deposit (by cash or additional letter of credit meeting the requirements of this Article 5) such that the aggregate amount of Security Deposit available to Landlord at all times during the Lease Term is the amount of the Security Deposit originally required, as the same may be required to be increased as provided below. If at any time while a Letter of Credit is held as a Security Deposit, Tenant is a Debtor (as defined in Section 101(13) of the Bankruptcy Code) under any case or filing, then, anything in this Section 5 to the contrary notwithstanding, Landlord shall not be required to give Tenant written notice of and/or opportunity to cure or grace period to cure any default under this Lease prior to Landlord drawing upon the Letter of Credit following Tenant’s failure to perform any of its obligations under this Lease. The Security Deposit shall be returned to Tenant within thirty (30) days after the Expiration Date and surrender of the Premises to Landlord in the condition required by this Lease, less any amount deducted in accordance with this Section 5, together with Landlord’s written notice itemizing

the amounts and purposes for such deduction; provided however that if at the end of such thirty (30) day period there are any uncured breaches by Tenant of its obligations under this Lease and the cost of cure or extent of damage as a result has not yet been ascertained by Landlord, then such thirty (30) day period shall be extended as reasonably necessary for Landlord to ascertain the cost of cure and extent to which Landlord has been damaged as a result thereof. Tenant hereby waives California Civil Code Section 1950.7, or any similar law now or hereafter in effect (including, without limitation, any federal law) to the extent the same may have the effect of limiting the circumstances under which Landlord would be allowed to use or apply the Security Deposit or amount that could be so used or applied, or imposing a deadline for the return of the Security Deposit. In the event of termination of Landlord’s interest in this Lease, Landlord shall deliver the Letter of Credit or cash Security Deposit to Landlord’s successor in interest in the Premises and thereupon be relieved of further responsibility with respect to the Letter of Credit or cash Security Deposit; provided however that if Tenant fails to timely perform its obligations under the next sentence, Landlord shall have the right, upon request of Landlord’s successor, to draw on the Letter of Credit on behalf of Landlord’s successor. Upon termination or transfer of Landlord’s interest in the Lease, within ten (10) business days after written request by Landlord or Landlord’s successor, Tenant shall either cause the Letter of Credit to be amended to name Landlord’s successor as the party entitled to draw down on the Letter of Credit and deliver such amendment to the requesting party, or shall obtain and deliver to the requesting party a new Letter of Credit naming Landlord’s successor as the party entitled to draw on the Letter of Credit and otherwise meeting the requirement of this Section 5. Landlord shall have the right to pledge the Letter of Credit or otherwise grant a security interest therein to Landlord’s lenders, and shall have the right to deliver the Letter of Credit or all or any portion of any cash Security Deposit to Landlord’s lenders in connection therewith, provided the Letter of Credit or cash Security Deposit shall only be used in accordance with, and shall continue to be governed by, the terms and provisions of this Section 5. At Landlord’s election, within ten (10) days after request by

Landlord, Tenant shall either cause the Letter of Credit to be amended to name Landlord’s lenders as the beneficiary or as a co-beneficiary with Landlord, and/or as a co-signer of any certification presented for a draw down of the Letter of Credit, and to incorporate other changes to the Letter of Credit reasonably requested by Landlord or Landlord’s lenders, or shall obtain a new Letter of Credit to effectuate such changes and otherwise meeting the requirements of this Section 5. If a new Letter of Credit is delivered to Landlord as required by this Section 5.B, the old Letter of Credit shall be promptly returned to Tenant. If Landlord or a designated lender rightfully attempts to draw on the Letter of Credit but does not receive the full amount requested in cash, Tenant shall within five (5) days after demand from Landlord, deposit with Landlord cash in the amount of the deficiency. Landlord shall only draw on the Letter of Credit following an Event of Default or in the event Tenant fails to renew the Letter of Credit at least thirty (30) days before its expiration.

Subject to this Section 6.A below, Landlord shall deliver the Initial Space to Tenant on the Initial Space Delivery Date and the Expansion Space to Tenant on the Expansion Space Delivery Date, in each case, in good condition and in compliance with applicable laws, codes and regulations (including, without limitation, the Americans with Disabilities Act (“ADA”)) and with all electrical, plumbing, ceiling tiles, roof, windows (including glazing and gaskets and caulking), structural elements, Building foundation, fire sprinkler, lighting, water, gas and heating, ventilating and air conditioning (“HVAC”), sewer, elevator and other Building operating systems, and parking lots and driveways and restrooms, in good working condition and repair and ADA compliant (except for deficiencies or non-compliance caused by Tenant, Tenant’s Agents or Tenant’s Alterations). Landlord shall have no responsibility for the generator, the UPS System and batteries, the phone system, the security system or the key card access system. Notwithstanding anything to the contrary in this Lease, Landlord shall cause any

defects or deficiencies in the foregoing delivery condition of the Initial Space and the Expansion Space to be corrected at Landlord’s sole cost and expense (and not as an Operating Cost), provided, that (i) Tenant gives written notice of such defect or deficiency to Landlord prior to (a) the date which is sixty (60) days following the Initial Space Delivery Date, with respect to defects or deficiencies in the Initial Space and any other element of the Building or the Project described in the first sentence of this paragraph, and (b) the date which is thirty (30) days following the Expansion Space Delivery Date with respect to defects or deficiencies in the Expansion Space (excluding the HVAC), the roof, the caulking and any other building operating systems, and (ii) the existence of any such defect or deficiency shall not cause an extension of or delay in the Commencement Date or the Expansion Space Commencement Date. The preceding time limitations notwithstanding, if during the course of construction of the Tenant Improvements, Tenant discovers that any element of the Building or the Project described in the first sentence of this paragraph is not in compliance with applicable laws, codes and regulations (including, without limitation, the ADA), Tenant shall give written notice of such non-compliance to Landlord promptly upon discovery, and Landlord shall use its best efforts to cause such non-compliance to be corrected at Landlord’s sole cost with the least possible interference with, or delay in, Tenant’s construction of the Tenant Improvements.

Except as expressly provided in this Section 6.A above, the Initial Space and Expansion Space shall be delivered to Tenant, and Tenant shall accept such delivery, in its then “AS IS, WITH ALL FAULTS” condition, without representation or warranty of any kind, express or implied, other than any which may be expressly contained in this Lease, and with no obligation on the part of Landlord to perform any other work (other than such work as this Lease expressly states must be performed by Landlord during the Lease Term). Landlord shall not be liable for any damage or loss incurred by Tenant for Landlord’s failure for whatever cause to deliver possession of the Premises by a particular date (including the Commencement Date or Expansion Space Commencement Date), nor shall

this Lease be void or voidable on account of such failure to deliver or delay in delivering possession of the Premises; provided that if Landlord does not deliver possession of the Initial Space to Tenant by December 1, 2012, (i) Tenant shall have the right to terminate this Lease by written notice delivered to Landlord within five (5) business days thereafter, and Landlord and Tenant shall be relieved of their respective obligations hereunder (other than those that this Lease states expressly survives expiration or sooner termination of this Lease) and the prepaid Base Monthly Rent, Reimbursable Operating Costs and the Security Deposit previously paid by Tenant to Landlord shall be reimbursed to Tenant, or (ii) at Tenant’s election, the date Tenant is otherwise obliged to commence payment of Base Monthly Rent with respect to the Initial Space shall be delayed by one additional day for each day that delivery of the Initial Space is delayed beyond December 1, 2012. If Landlord does not deliver possession of the Expansion Space to Tenant by August 1, 2013, Tenant shall have the right to terminate this Lease as to both the Initial Space and the Expansion Space, by written notice delivered to Landlord within five (5) business days thereafter, and Landlord and Tenant shall be relieved of their respective obligations hereunder thereafter accruing (other than those that this Lease states expressly survives expiration or sooner termination of this Lease) and the prepaid Base Monthly Rent, Reimbursable Operating Costs and the Security Deposit previously paid by Tenant to Landlord shall be reimbursed to Tenant or (ii) at Tenant’s election, the date Tenant is otherwise obliged to commence payment of Base Monthly Rent with respect to the Expansion Space shall be delayed by one additional day for each day that delivery of the Expansion Space is delayed beyond such date.

Landlord shall have no obligation to perform tenant improvement work with respect to the Initial Space or the Expansion Space.

All initial tenant improvements which Tenant desires to install in the Building (the “Tenant Improvements”) shall be constructed by Tenant in accordance with plans and specification approved by Landlord and the requirements of this Section

6.B and Article 8 below, at Tenant’s sole cost. The process for approval and disapproval of Tenant’s plans and specifications for the Tenant Improvements is described in Section 8.A below.

Prior to substantial completion, Tenant shall be obligated to (i) provide active phone lines to all elevators, and (ii) contract with a firm to monitor the fire system.

The point at which the high speed fiber optic communication lines enters the Project is a room in Building A (the “Fiber Room”). During the construction of the Tenant Improvements. Landlord shall provide Tenant with access to the Fiber Room upon twenty-four (24) hours written notice from Tenant, to permit Tenant to connect its fiber optic communication lines to the Building.

The Tenant Improvements shall not be removed or altered by Tenant except as provided in Article 8 below. Tenant shall have the right to depreciate and claim and collect any investment tax credits for the Tenant Improvements during the Lease Term. Upon expiration of the Lease Term or any earlier termination of the Lease, the Tenant Improvements shall become the property of Landlord and shall remain upon and be surrendered with the Premises, and title thereto shall automatically vest in Landlord without any payment therefore, subject to Article 7 and Article 8 below.

Prior to the Expansion Space Commencement Date, Landlord shall cause the parking areas of the Project to be repaired, resealed and restriped in accordance with the Scope of Work which was delivered by Landlord to Tenant prior to the execution of this Lease, at Landlord sole cost and expense (the work described in this Section 7.A being “Landlord’s Work”).

On the Commencement Date, Landlord shall deliver and Tenant shall accept possession of the

Initial Space. On the Expansion Space Commencement Date, Landlord shall deliver and Tenant shall accept possession of the Expansion Space. Except as otherwise specifically provided in this Lease, Tenant agrees to accept possession of the Initial Space and Expansion Space in their then existing condition, subject to all Restrictions and without representation or warranty by Landlord, express or implied.

Tenant further agrees on the expiration or sooner termination of this Lease, to surrender the Premises to Landlord in good condition and repair, normal wear and tear, casualty damage, repairs and replacements which are the Landlord’s responsibility under this Lease, and Alterations and which it is permitted to surrender at termination of the Lease excepted. In no event shall Tenant be required to remove all or any portion of the Tenant Improvements. In this regard, “normal wear and tear” shall be construed to mean wear and tear caused to the Premises by the natural aging process which occurs in spite of prudent application of industry standards for maintenance, repair, replacement, and janitorial practices, and does not include items of neglected or deferred maintenance. In any event, and notwithstanding the foregoing, Tenant shall cause the following to be done prior to the Expiration Date or sooner termination of this Lease: (i) all interior walls shall be painted or cleaned, (ii) all tiled floors shall be cleaned and waxed, (iii) all carpets shall be cleaned and shampooed, (iv) all broken, marred, stained or nonconforming acoustical ceiling tiles shall be replaced, (v) all cabling placed above the ceiling by Tenant or Tenant’s contractors shall be removed (unless Landlord waives such requirement in writing), (vi) all windows shall be washed, (vii) the HVAC system shall be serviced by a reputable and licensed service firm and left in “good operating condition and repair”, which condition shall be so certified by such firm, and (viii) the plumbing and electrical systems and lighting shall be placed in good order and repair (including replacement of any burned out, discolored or broken light bulbs, ballasts, or lenses). On or before the Expiration Date or sooner termination of this Lease, Tenant shall remove all its personal property and trade fixtures from the Premises. As to all Alterations

for which Landlord consent was not obtained, Tenant shall ascertain from Landlord not more than one (1) year and not less than ninety (90) days before the Expiration Date or sooner termination of this Lease whether Landlord desires to have any such Alterations made by Tenant removed and the Premises or any parts thereof restored to the condition existing before such Alterations, or to cause Tenant to surrender any or all Alterations in place to Landlord. If Landlord shall so desire, Tenant shall, at Tenant’s sole cost and expense, remove such Alterations as Landlord requires and shall repair and restore said Premises or such parts thereof before the Expiration Date or sooner termination of this Lease. Such repair and restoration shall include causing the Premises to be brought into compliance with all applicable building codes and laws in effect at the time of the removal, repair and restoration to the extent such compliance is necessitated by the removal, repair and restoration work.

Subject to this Section 7.D below, if Tenant fails to surrender the Premises at the Expiration Date or sooner termination of this Lease in the condition required by Section 7.C and other provisions of this Lease, Tenant shall be deemed to be holding over without Landlord’s consent, and Tenant shall indemnify, defend with counsel reasonably acceptable to Landlord, and hold Landlord and Landlord’s trustees, beneficiaries, shareholders, directors, officers, members, employees, partners, affiliates, agents, successors and assigns (collectively “Landlord Related Parties”) harmless from and against all claims, liabilities, obligations, penalties, fines, actions, losses, damages, costs or expenses (including without limitation reasonable attorneys fees) resulting from delay by Tenant in so surrendering the Premises including, without limitation, any claims made by any succeeding tenant founded on such delay and costs incurred by Landlord in returning the Premises to the required condition, plus interest thereon at the Agreed Interest Rate. If Tenant remains in possession of, or fails to remove all its personal property and trade fixtures from, the Premises after the Expiration Date or sooner termination of this Lease without Landlord’s consent, such hold over shall not

constitute a renewal or extension of the Lease Term, Tenant’s continued possession shall be on the basis of a tenancy at sufferance, and Tenant shall be liable to Landlord for one hundred fifty percent (150%) of the Base Monthly Rent due in the month preceding the earlier termination or Expiration Date, as applicable, prorated for partial months based on the number of days in such month, plus all other amounts payable by Tenant under this Lease. If Tenant holds over after the Expiration Date or sooner termination of this Lease with Landlord’s consent, such holding over shall be construed as a month to month tenancy, at one hundred fifty percent (150%) of the Base Monthly Rent for the month preceding expiration or sooner termination of this Lease in addition to all other rent due under this Lease, and shall otherwise be on the terms and conditions of this Lease, except for the following: those provisions relating to the Lease Term, any provisions requiring Landlord to perform any Landlord’s Work or install any Tenant Improvements, or grant any free rent or other concessions, any options to extend or renew and any right to lease any space at 4551 GAP pursuant to Section 19.E below, which provisions shall be of no further force and effect. This provision shall survive the termination or expiration of the Lease.

Tenant shall not make, or suffer to be made, any alteration or addition to the Premises (“Alterations”), or any part thereof, without obtaining Landlord’s prior written consent and delivering to Landlord the proposed architectural and structural plans for all such Alterations at least fifteen (15) days prior to the start of construction. All Tenant Improvements shall also constitute “Alterations” under this Lease. If such Alterations affect the structure of the Building, Tenant additionally agrees to reimburse Landlord its reasonable out-of-pocket costs incurred in reviewing Tenant’s plans. After obtaining Landlord’s consent (were such consent is required), Tenant shall not proceed to make such Alterations until Tenant has obtained all required governmental approvals and permits, and provides Landlord reasonable security, in form reasonably approved by Landlord, to protect

Landlord against mechanics’ lien claims; provided, however, that no such security shall be required in connection with Alterations that cost less than $600,000 per project. Tenant agrees to provide Landlord (i) not less than twenty (20) days prior written notice of the anticipated and actual start-date of the work, (ii) a complete set of half-size (15” X 21”) vellum as-built drawings, and (iii) a certificate of occupancy, or other final government approval if the City does not issue certificates of occupancy, for the work upon completion of the Alterations.

Where Landlord’s consent is required for Alterations, Tenant shall cause to be prepared and shall submit to Landlord: (i) all interior architectural design and engineering drawings, layouts and material specifications and schedules for the Premises; (ii) all working, finished, detailed architectural and engineering construction drawings (including “as-built” drawings) and specifications for the Alterations and any revisions thereto (collectively, “Tenant’s Plans”), all to be in compliance with all applicable building codes and all other applicable Laws. Except for “as-built” drawings, a copy of the foregoing shall be submitted to Landlord (prior to submission for application for construction permits) for Landlord’s review and consent (which consent will not be unreasonably withheld, delayed or conditioned). Tenant shall not be required to construct all or any particular portion of the Tenant Improvements and may enlarge or reduce the scope of the Tenant Improvements in its sole discretion (subject to Landlord’s review and approval of Tenant’s plans and specification as provided herein); provided that Tenant shall not leave any partially constructed or unfinished areas.

With respect to the Tenant Improvements, Landlord hereby approves the elements and description of the Tenant Improvements described on Exhibit “B-1” attached hereto (the “Preliminary Tenant Improvement Plans”. When the Tenant’s Plans for the Tenant Improvements have been approved by the parties in accordance to this Section 8.A, the same shall be attached to this Lease as Exhibit “B-2” and shall be referred to as the “Tenant Improvement Plans and Specifications”. Any changes requested by Tenant to the approved Tenant Improvement

Plans and Specifications shall be subject to the plan review and approval process described in this Section 8.A.

Not later than ten (10) days after Landlord’s receipt of Tenant’s Plans, Landlord shall advise Tenant if it approves them or if not shall advise Tenant what revisions are required to obtain Landlord’s approval; provided however that failure to notify Tenant of its decision within this ten (10) day period shall not be deemed approval by Landlord. If Landlord notifies Tenant that revisions are needed, then the parties shall confer and negotiate promptly and in good faith to reach agreement on modifications to the Tenant’s Plans. Not later than five (5) days after Landlord’s receipt of any the proposed modifications to the Tenant’s Plans, Landlord shall advise Tenant if it approves them or if not shall advise Tenant what further revisions are required to obtain Landlord’s approval; provided however that failure to notify Tenant of its decision within this five (5) day period shall not be deemed approval by Landlord. With respect to the Tenant Improvements, Landlord shall not withhold its consent to any element of the Tenant’s Plans or any change thereto that are consistent with or represent logical evolutions of the items described in the Preliminary Tenant Improvement Plans, except to the extent any elements of the Tenant’s Plans adversely affect the structural components or integrity of the Building. In addition, the materials and finishes utilized in construction of the Tenant Improvements shall be consistent in quality with those of the Building shell in the reasonable opinion of Landlord.

All Alterations shall be constructed by a licensed general contractor in compliance with all applicable Laws including, without limitation, all building codes, Sustainability Requirements and the Americans with Disabilities Act of 1990 as amended from time to time. Landlord hereby approves Permian Builders, Devcon Construction, South Bay Construction and Sobrato Construction as acceptable general contractors. Upon the Expiration Date or sooner termination of this Lease, all Alterations, except movable furniture and trade fixtures, shall become a part of the realty and belong to Landlord but shall nevertheless be subject to removal by Tenant as provided in Section 7.C. Notwithstanding the

foregoing, if at the time Landlord gives its consent to any Alteration (excluding the Tenant Improvements), Landlord advises Tenant in writing that such Alteration must be removed at expiration or sooner termination of this Lease, then Tenant shall be required to remove such Alteration and restore the Premises to the condition existing before such Alteration was performed not later than expiration or sooner termination of this Lease. If Landlord fails to so advise Tenant at the time of its consent, then such Alterations shall not be required to be removed. Alterations which are not deemed as trade fixtures include without limitation heating, lighting, electrical systems, air conditioning (other than supplemental HVAC units, which are addressed in the immediately following sentence), walls, carpeting, or any installation which has become an integral part of the Premises and cannot be removed without material damage to the Premises. Any supplemental HVAC system installed by Tenant may be removed by Tenant provided that (i) Tenant also removes all supplemental equipment and systems and other items installed to serve or operate the supplemental HVAC system, and (ii) Tenant repairs and restores the Premises or such parts thereof to the condition existing before the installation of the supplemental HVAC system, which repair and restoration shall include causing the Premises to be brought into compliance with all applicable building codes and laws in effect at the time of the removal, repair and restoration to the extent such compliance is necessitated by the removal, repair and restoration work. All Alterations shall be maintained, replaced or repaired by Tenant at its sole cost and expense. In no event shall Landlord’s approval of, or consent to, any architect, contractor, engineer or other consultant or professional, any Alterations, or any plans, specifications and drawings for any Alterations constitute a representation or warranty by Landlord of (i) the accuracy or completeness of the plans, specifications, drawings and Alterations or the absence of design defects or construction flaws therein, or the qualification of any person or entity, or (ii) compliance with applicable Laws, and Tenant agrees that Landlord shall incur no liability by reason of such approval or consent. Once any Alterations begin, Tenant shall diligently and continuously pursue their completion. Notwithstanding anything to the

contrary in this Section 8.A above, Tenant may make Alterations in the Premises which do not affect the structure or structural integrity of the Premises and do not adversely affect any Building systems, to the extent the cost of such work (i) does not exceed One hundred Thousand Dollars ($100,000) and (ii) does not, together with all other Alterations performed during the same calendar year, exceed Two Hundred Thousand Dollars ($200,000) in the aggregate.

Tenant shall keep the Premises free from all liens arising out of work performed, materials furnished, or obligations incurred by Tenant or claimed to have been performed for or furnished to Tenant (other than the Tenant Improvements, to the extent paid for by Tenant). In the event Tenant fails to discharge any such lien within fifteen (15) days after receiving notice of the filing, Landlord shall immediately be entitled to discharge the lien at Tenant’s expense and all resulting costs incurred by Landlord, including attorney’s fees shall be due immediately from Tenant as additional rent.

The term Laws or Governmental Regulations shall mean all federal, state, county, city or governmental agency laws, statutes, ordinances, codes, standards, rules, requirements, regulations, Sustainability Requirements or orders now in force or hereafter enacted, promulgated, or issued. The term also includes government measures regulating or enforcing public access, traffic mitigation, occupational, health, or safety standards for employers, employees, landlords, or tenants. Tenant, at Tenant’s sole expense shall comply with all such Governmental Regulations applicable to the Premises or the Tenant’s use of the Premises and shall make all repairs, replacements, alterations, or improvements necessary to comply with said Governmental Regulations, other than work required of Landlord pursuant to Section 6.A above. The judgment of any court of competent jurisdiction or the admission of Tenant in any action or proceeding against Tenant (whether Landlord be a party thereto or not) that Tenant has violated

any such law, regulation or other requirement in its use of the Premises shall be conclusive of that fact as between Landlord and Tenant. Tenant’s obligations pursuant to this Section 8.C shall include, without limitation, maintaining and restoring the Premises and making structural and nonstructural alterations and additions to the Premises, Building and Common Area in compliance and conformity with all Laws and recorded documents to the extent required because of Tenant’s particular use of the Premises or any work or Alteration made by or on behalf of Tenant during the Lease Term. The foregoing shall include, without limitation, compliance with and improvements required by the Americans With Disabilities Act or any similar Laws, as they may be amended from time to time, subject to Landlord’s obligations under Section 6.A above. Landlord’s approval of any Alteration or other act by Tenant shall not be deemed to be a representation by Landlord that said Alteration or act complies with applicable Laws, and Tenant shall remain solely responsible for said compliance. Notwithstanding anything to the contrary in this Lease, Tenant shall not be required to make structural or non-structural alterations or improvements to the Premises to comply with Laws unless required, in whole or in part, by Tenant’s particular use of the Premises or any work or Alteration made by or on behalf of Tenant during the Lease Term.

During the course of construction of its Alterations, Tenant shall cause the General Contractor to procure (as a cost of the Tenant Improvements) a “Broad Form” liability insurance policy in the amount of Three Million Dollars ($3,000,000.00). Tenant shall also procure or cause to be procured (as a cost of the Tenant Improvements) builder’s risk insurance for the full replacement cost of the Tenant Improvements while the Tenant Improvements are under construction, up until the date that the casualty insurance policy described in Section 10 below is in full force and effect.

Tenant shall maintain during the course of construction of its Alterations (other than the Tenant Improvements), at its sole cost and expense, builders’ risk insurance for the amount

of the completed value of the Alterations on an all-risk non-reporting form covering all improvements under construction, including building materials, and other insurance in amounts and against such risks as Landlord shall reasonably require in connection with the Alterations. In addition to and without limitation on the generality of the foregoing, Tenant shall ensure that its contractors procure and maintain in full force and effect during the course of construction a “broad form” commercial general liability and property damage policy of insurance naming Landlord, any property manager or Landlord affiliates designated by Landlord and Landlord’s lenders as additional insureds. The minimum limit of coverage of the aforesaid policy shall be in the amount of not less than One Million Dollars ($1,000,000.00) per occurrence and One Million Dollars ($1,000,000.00) annual aggregate, and shall contain a severability of interest clause or a cross liability endorsement. If Commercial General Liability Insurance or other form with a general aggregate limit is used, either the general aggregate limit shall apply separately to this project/location or the general aggregate limit shall be twice the required occurrence limit.

Landlord at its sole cost and expense, shall maintain in good condition, order, and repair, and replace as and when necessary, the structural components of the Building including the foundation, exterior load bearing walls and roof structure, except that the cost to repair any damage caused by Tenant or Tenant’s Agents shall be paid for by Tenant to the extent the cost of repair is not fully paid to Landlord from available insurance proceeds.

In addition, Landlord shall maintain in good condition, order, and repair, and replace as and when necessary, all underground utility facilities, the cost of which shall be a Reimbursable Operating Cost (as defined in Section 9.D below).

Except for Landlord’s maintenance and repair obligations under Section 6.A, Section 9.A,

Section 15.E and Section 16 of this Lease, Tenant shall clean, maintain, repair and replace when necessary the Building and every part thereof through regular inspections and servicing, including but not limited to the following, to the extent Landlord does not elect to maintain the same as Reimbursable Operating Costs: (i) all plumbing and sewage facilities, (ii) all heating ventilating and air conditioning facilities and equipment, (iii) all fixtures, interior walls, floors, carpets and ceilings, (iv) all windows, door entrances, plate glass and glazing systems including caulking, and skylights, (v) all electrical facilities and equipment, (vi) all automatic fire extinguisher equipment, (vii) the parking lot, (viii) all elevator equipment, (ix) the roof membrane system, and (x) all waterscape, landscaping and shrubbery. All wall surfaces and floor tile are to be maintained in an as good a condition as when Tenant took possession free of holes, gouges, or defacements. With respect to items (ii), (viii) and (ix) above, Tenant shall provide Landlord a copy of a service contract between Tenant and a licensed service contractor providing for periodic maintenance of all such systems or equipment in conformance with the manufacturer’s recommendations. Tenant shall provide Landlord a copy of such preventive maintenance contracts and paid invoices for the recommended work if requested by Landlord. To the extent that any item in (i) through (x) above is determined by Landlord to be for the benefit of more than one (1) tenant or occupant of the Building or Project, Landlord shall assume the obligation to clean, maintain, repair and replace the same as Reimbursable Operating Costs (as defined in Section 9.D below) and Tenant shall have no obligation to clean, maintain, repair or replace such item.

Notwithstanding this Section 9.B above, if Tenant determines that any of the following located in or servicing the Premises (other than Tenant Improvements or Alterations) or the Project are in need of material repair or replacement, and (i) the cost of such repair replacement is in excess of Seventy-five Thousand Dollars ($75,000), and (ii) the material repair or replacement constitutes a capital cost under generally accepted accounting principles, then Tenant shall notify Landlord of same in writing: (i) fire and life safety systems, (ii) fire

pumps, (iii) elevators, (iv) roof membrane and (v) HVAC units. Tenant notifies Landlord of the foregoing, then Landlord shall cause such repair or replacement (whether an item is repaired or replaced shall be determined by Landlord in its reasonable discretion) to be made, subject to reimbursement by Tenant as follows: (1) the first Seventy-Five Thousand Dollars ($75,000) of such cost shall be paid by Tenant not later than thirty (30) days after demand for payment is delivered to Tenant, and Landlord shall not be required to contract for or begin such work until such amount has been paid to Landlord, and (2) the balance of such cost together with interest thereon at the Agreed Interest Rate shall be amortized over the useful life of the capital repair or replacement, as reasonably determined by Landlord in accordance with generally accepted accounting principles, and the monthly amortized cost shall be paid by Tenant to Landlord as additional rent on the first day of each calendar month during the remaining Lease Term.

If a capital repair (including resurfacing and restriping) to the parking lot of the Project is required in the last five (5) years of the Lease Term, and the cost of such repair replacement is in excess of Seventy-five Thousand Dollars ($75,000), then Landlord shall cause such replacement to be made, subject to reimbursement by Tenant in the same manner as provided in the immediately preceding paragraph.

If the cost of any material repair or replacement is Seventy-five Thousand Dollars ($75,000) or less, then such cost shall be a Reimbursable Operating Cost, to the extent properly included therein.

In addition to the direct payment by Tenant of expenses as provided in Section 9.B, 10, 11 and 12 of this Lease, Tenant agrees to reimburse Landlord for Tenant’s Allocable Share (as defined in Section 9.E below) of Reimbursable Operating Costs (as defined in Section 9.D below) resulting from Landlord payment of expenses related to the Building or Project which are not otherwise paid by Tenant directly. Landlord shall have the right to periodically

provide Tenant with a written estimate of Reimbursable Operating Costs for the next twelve (12) months and Tenant shall thereafter, until Landlord revises such estimate, pay to Landlord as additional rental, along with its Base Monthly Rent, one twelfth of Tenant’s Allocable Share of the Reimbursable Operating Costs as estimated by Landlord. Within one hundred twenty (120) days after the end of each calendar year during the Lease Term Landlord shall deliver to Tenant a statement (“Annual Statement”) in which Landlord shall set forth the actual expenditures for Reimbursable Operating Costs for such calendar year and Tenant’s Allocable Share thereof. The Annual Statement shall be certified by an authorized officer of Landlord to be correct. If the Annual Statement shows that Tenant’s payments of estimated Reimbursable Operating Costs exceeded Tenant’s actual obligation in respect of such calendar year, Landlord shall accompany said Annual Statement with a payment to Tenant of the amount of such excess. If the Annual Statement shows that Tenant’s payments of estimated Reimbursable Operating Costs were less than its actual obligation in respect of such calendar year, Tenant shall pay said difference to Landlord within thirty (30) days after Tenant’s receipt of the Annual Statement.

If Tenant disputes the amount or characterization of any item contained in the Annual Statement then Tenant shall give written notice thereof to Landlord not later than one hundred twenty (120) days after the Annual Statement is delivered to Tenant. Tenant shall then have the right to cause Landlord’s records upon which the Annual Statement is based to be audited by an independent nationally recognized certified public accounting firm. Except as provided below, the fee for any audit conducted on Tenant’s behalf shall be borne solely by Tenant. In no event shall the fee for any audit be computed on a contingency fee basis or be otherwise dependent upon the findings of such audit, and Tenant shall confirm to Landlord in writing the non-contingent nature of the contract between Tenant and such auditor. Tenant shall not have any right to withhold any payment pending resolution of such dispute or audit, and payment by Tenant of any sum or sums in dispute shall not be deemed to be a waiver of Tenant’s right to audit or contest the Annual Statement in

accordance with the terms and conditions of this Lease. Landlord shall cooperate with such audit and shall provide Landlord’s books and records reasonably requested and relative to the audit which shall be conducted during regular business hours at the office where Landlord maintains its books and records, at no cost to Landlord except as expressly provided below. If after such audit the parties do not agree on the audit findings then the dispute shall be settled by arbitration pursuant to Section 20.E below. If, as a result of Tenant’s inspection of Landlord’s books or the findings of the third party independent audit of Landlord’s records and review, an error is discovered in the Annual Statement, Landlord shall revise the Annual Statement accordingly and any overpayment by Tenant shall be refunded by Landlord to Tenant not later than thirty (30) days after receipt by Landlord of written demand for payment, and any underpayment shall be paid by Tenant not later than thirty (30) days after receipt by Tenant of written demand for payment. If Tenant does not notify Landlord of a dispute within one hundred twenty (120) days after receipt of any Annual Statement, Tenant shall be deemed to have accepted such Annual Statement and waived its right to dispute the Annual Statement or conduct an audit with respect to the Annual Statement. Landlord’s records and any information provided by Landlord to auditors pursuant to this Section, and the results of any such audit, shall be kept confidential by Tenant and its auditors, and shall not be made available by the auditors or Tenant to any other person or entity except to Tenant’s parent or affiliates and outside legal and financial representatives and except in any dispute resolution proceeding between the parties relating to such audit. If requested by Landlord, Tenant and its auditor shall, prior to any such audit, execute and deliver to Landlord a confidentiality agreement prepared by Landlord, reasonably acceptable to Tenant. If the final audit discloses an error in Landlord’s determination of the Reimbursable Operating Costs in excess of five percent (5%) in Landlord’s favor (i.e. the Annual Statement overstated Reimbursable Operating Costs by more than five percent (5%)), then all reasonable out-of-pocket costs of the audits shall be borne by Landlord.

For purposes of calculating Tenant’s Allocable Share of Building and Project costs, the term “Reimbursable Operating Costs” is defined as all costs and expenses which are incurred by Landlord in connection with ownership and operation of the Building or the Project in which the Premises are located, together with such additional facilities installed in the Project as may be determined by Landlord to be reasonably desirable or necessary to the ownership and operation of the Building and/or Project, except to the extent expressly excluded from Reimbursable Operating Costs pursuant to this Section 9.D below. All costs and expenses shall be determined in accordance with generally accepted accounting principles which shall be consistently applied (with accruals appropriate to Landlord’s business, but not in excess of eighteen (18) months). Reimbursable Operating Costs shall include, but not be limited to, the following to the extent the obligation therefor is not that of Tenant under the provisions of Section 9.B above: (i) common area utilities, including water, power, telephone, heating, lighting, air conditioning, ventilating, and Building utilities to the extent not separately metered; (ii) common area maintenance and service agreements for the Building and/or Project and the equipment therein, including without limitation, common area janitorial services, alarm and security services, exterior window cleaning, and maintenance of the sidewalks, landscaping, waterscape, roof membrane, parking areas, driveways, service areas, mechanical rooms, elevators, and the building exterior; (iii) insurance premiums and costs, including without limitation, the premiums and cost of fire, casualty and liability coverage and rental abatement and, if elected by Landlord, earthquake insurance applicable to the Building or Project (subject to the cost limitations set forth in Section 10 below); (iv) repairs, replacements and general maintenance (excluding repairs and general maintenance paid by proceeds of insurance or by Tenant or other third parties other than as Reimbursable Operating Costs, and repairs or alterations attributable solely to tenants of the Building or Project other than Tenant); (v) all real estate taxes and assessment installments or other impositions or charges which may be levied on

the Building or Project, upon the occupancy of the Building or Project and including any substitute or additional charges which may be imposed during, or applicable to the Lease Term including real estate tax increases due to a sale, transfer or other change of ownership of the Building or Project, as such taxes are levied or appear on the City and County tax bills and assessment rolls; (vi) costs of complying with Sustainability Requirements; (vii) deductibles under insurance policies; (viii) capital expenditures, which shall be amortized over their useful lives as reasonably determined by Landlord, together with interest on the unpaid portion of such expenditure at the Agreed Interest Rate; and (ix) any of items (i) through (vi) in Section 9.B above to the extent Landlord has elected to assume with respect thereto the obligations for cleaning, maintenance, repair and/or replacement. Landlord shall have no obligation to provide guard services or other security measures for the benefit of the Project. Tenant assumes all responsibility for the protection of Tenant and Tenant’s Agents from acts of third parties; provided, however, that nothing contained herein shall prevent Landlord, at its sole option, from providing security measures for the Project. This is a “Net” Lease, meaning that Base Monthly Rent is paid to Landlord absolutely net of all costs and expenses, except only those costs which this Lease expressly states shall be paid by Landlord at Landlord’s sole cost or which are expressly excluded from Reimbursable Operating Costs pursuant to this Section 9.B. The provision for payment of Reimbursable Operating Costs by means of monthly payment of Tenant’s Allocable Share of Building and/or Project Costs is intended to pass on to Tenant and reimburse Landlord for all costs of operating and managing the Building and/or Project, other than those costs which this Lease expressly states shall be paid by Landlord at Landlord’s sole cost or which are expressly excluded from Reimbursable Operating Costs pursuant to this Section 9.B . If less than one hundred percent (100%) of the Building and other Project buildings is leased at any time during the Lease Term, Landlord shall adjust Reimbursable Operating Costs to equal Landlord’s reasonable estimate of what Reimbursable Operating Costs would be had one

hundred percent (100%) of the Building and the other Project buildings been leased.

Reimbursable Operating Costs shall exclude the following: (a) Costs occasioned by the act, omission or violation of any law by Landlord, any other occupant of the Project, or their respective agents, employees or contractors; (b) Costs to correct any construction defect in the Premises, Building or the Project, (provided that Tenant shall be solely responsible for correcting defects in Alterations or any other correction of defects that becomes necessary due to any Alterations); (c) Costs incurred in connection with negotiations or disputes with any other occupant of the Project (other than Tenant’s Agents as to which Tenant shall be solely responsible) and costs arising from the violation by Landlord or any occupant of the Project (other than Tenant or Tenant’s Agents, as to which Tenant shall be solely responsible) of the terms and conditions of any lease or other agreement; (d) premiums for earthquake insurance in excess of the cost limitations set forth in Section 10 below; (e) Costs incurred in connection with the presence of any Hazardous Material; (f) interest, charges and fees incurred on debt; (g) costs of repair and maintenance to be performed at Landlord’s sole cost and expense as set forth in Section 9.A above; (h) Landlord’s net income, inheritance, gift, transfer, or estate taxes; (i) costs to correct any violation of any covenant, condition, restriction, underwriter’s requirement or law applicable to the Premises or the Project on the Commencement Date; (j) deductible amounts applicable to any earthquakes insurance carried by Landlord; (k) any co-insurance payments; and (l) real estate taxes or assessments: (1) in excess of the amount which would be payable if such assessment expense were paid in installments over the longest possible term, and (2) imposed on land or improvements other than the Project. Exclusion of costs from Reimbursable Operating Costs shall not be construed to release Tenant from the obligation to pay for such costs other than as Reimbursable Operating Costs as expressly provided elsewhere in this Agreement (including but not limited to the amortized cost of capital costs pursuant to Section 9.B above and Tenant’s obligations relating to Hazardous Materials pursuant to Article 13 below).

For purposes of prorating Reimbursable Operating Costs which Tenant shall pay, Tenant’s Allocable Share of Reimbursable Operating Costs shall be computed by multiplying the Reimbursable Operating Costs by a fraction, the numerator of which is the rentable square footage of that portion of the Premises as to which the Lease Term has commenced and the denominator of which is either (i) the total rentable square footage of the Building if the service or cost is allocable only to the Building, or (ii) the total rentable square footage of the buildings in the Project if the service or cost is allocable to the entire Project, or (iii) the total rentable square footage of the premises of those tenants or occupants of the Project that Landlord determines to be benefiting from such service or facility. Tenant’s obligation to share in Reimbursable Operating Costs shall be adjusted to reflect the Lease Commencement and Expiration Dates and is subject to recalculation in the event of expansion or contraction of the rentable square footage of the Building or Project.

Failure by Landlord to perform any defined services, or any cessation thereof, when such failure is caused by accident, breakage, repairs, strikes, lockout or other labor disturbances or labor disputes of any character or by any other cause, similar or dissimilar, shall not render Landlord liable to Tenant in any respect, including damages to either person or property, nor be construed as an eviction of Tenant, nor cause an abatement of rent, nor relieve Tenant from fulfillment of any covenant or agreement hereof. Should any equipment or machinery utilized in supplying the services listed herein break down or for any cause cease to function properly, upon receipt of written notice from Tenant of any deficiency or failure of any services, Landlord shall use reasonable diligence to repair the same promptly, but Tenant shall have no right to terminate this Lease and shall have no claim for rebate of rent or damages on account of any interruptions in service occasioned thereby or resulting therefrom. Tenant waives the provisions of California Civil Code Sections 1941 and 1942 concerning the Landlord’s obligation of

tenantability and Tenant’s right to make repairs and deduct the cost of such repairs from the rent, and any similar Law now or hereafter in effect. Except for Landlord’s willful misconduct, Landlord shall not be liable for a loss of or injury to person or property, however occurring, through or in connection with or incidental to furnishing, or its failure to furnish, any of the foregoing.

Neither Tenant nor Tenant’s Agents shall use or permit the Premises, or any part thereof, to be used for any purpose other than that for which the Premises are hereby leased; and no use of the Premises by Tenant or Tenant’s Agents shall be made or permitted, nor acts done, which will cause an increase in premiums (unless such use is a Permitted Use and Tenant pays such increase) or a cancellation of any insurance policy covering the Premises or any part thereof, nor shall Tenant or Tenant’s Agents sell or permit to be sold, kept, or used in or about the Premises, any article prohibited by the standard form of fire insurance policies. Tenant shall, at its sole cost, comply with all requirements of any insurance company or organization necessary for the maintenance of reasonable fire and public liability insurance covering the Premises and appurtenances.

Landlord agrees to purchase and keep in force All Risk and fire insurance in an amount equal to the replacement cost of the Building excluding any Tenant Improvements and Alterations that are reasonably identified by Landlord in writing to Tenant delivered at the time of Landlord’s approval thereof as not typical or customary for office uses (“Specialized Tenant Improvements”), provided that Landlord’s insurance may provide coverage to replace Specialized Tenant Improvements or Alterations with improvements that are typical or customary for office uses. In addition, Landlord may elect to purchase insurance coverage for perils including earthquake, flood and/or terrorist acts, in amounts and with deductibles reasonably determined by Landlord.

Notwithstanding anything to the contrary in this Lease, Tenant shall not be required to reimburse Landlord for the cost of premiums for earthquake insurance carried with respect to the Building or the Project unless Tenant elects for Landlord to purchase such insurance in accordance with this paragraph. Tenant may require Landlord to purchase earthquake insurance for the Building or the Project by delivering written notice of such election to Landlord at any time during the Lease Term (the “EQ Insurance Notice”). Such EQ Insurance Notice shall specify the amount, type, deductible (which deductible shall not be less than five percent (5%), period of rental loss coverage (which shall provide for a reasonable period of time for reconstruction, but a minimum of twelve (12) months), term and other elements of coverage that Tenant requires Landlord to purchase. Upon receipt of Tenant’s EQ Insurance Notice, Landlord shall promptly obtain from Landlord’s portfolio insurance provider and deliver to Tenant a quotation for the specified insurance. The coverage shall be mutually agreed upon prior to binding. Upon receipt of such quotation from Landlord, Tenant may elect to withdraw its request for earthquake insurance or approve the quotation obtained by Landlord, and shall notify Landlord in writing of such election, whereupon Landlord shall cause such insurance to be purchased. Tenant shall be required to reimburse Landlord during the Lease Term as Additional Rent on an annual basis for the premiums approved by Tenant as aforesaid. Landlord shall notify Tenant in writing of the annual premium quotation for the renewal of the earthquake insurance as soon as the same is received by Landlord (which the parties anticipate will be approximately thirty (30) days prior to the expiration of the existing coverage). Within five (5) business days of Tenant’s receipt of such premium notice, Tenant shall advise Landlord in writing of Tenant’s approval of such premium, in which event Landlord shall cause the earthquake insurance to be renewed for the next year, or of Tenant’s disapproval of such premium, in which event Landlord shall not renew such coverage. Tenant’s rights to elect Landlord to obtain or terminate earthquake insurance pursuant to this Paragraph shall be continuous through the Lease Term, as extended, but may not be exercised more than once every twelve (12) months.

Landlord may also maintain a policy of (i) commercial general liability insurance insuring Landlord (and such others designated by Landlord) against liability for personal injury, bodily injury, death and damage to property occurring or resulting from an occurrence in, on or about the Premises or Project in an amount as Landlord determines is reasonably necessary for its protection, and (ii) rental loss insurance covering a twelve (12) month period. Tenant agrees to pay Landlord as additional rent, within ten (10) days after written invoice to Tenant, Tenant’s Allocable Share of the amount of any deductible under such policy (excluding any deductible under any earthquake insurance), provided that if damage is confined to the Premises, Tenant shall pay the entire deductible to Landlord. It is understood and agreed that Tenant’s obligation under this Section 10.B will be prorated to reflect the Commencement Date and Expiration Date.

Tenant agrees, at its sole cost, to insure its personal property, trade fixtures and Specialized Tenant Improvements against damage for their full replacement value (without depreciation). Said insurance shall provide All Risk and fire coverage equal to the replacement cost of said property. Tenant shall deliver a copy of the policy and renewal certificate to Landlord. Tenant agrees, at its sole cost, to obtain and maintain throughout the Lease Term Commercial General Liability insurance for occurrences within the Project with a combined single limit of not less than Five Million Dollars ($5,000,000.00) and worker’s compensation insurance with a combined single limit of One Million Dollars ($1,000,000.00). Tenant’s liability insurance shall be primary insurance containing a cross-liability endorsement, and shall provide coverage on an “occurrence” rather than on a “claims made” basis. All such insurance shall provide for severability of interests; shall provide that an act or omission of one of the named or additional insureds shall not reduce or avoid coverage to the other named or additional insureds. Tenant shall name Landlord and Landlord’s lenders, property manager and any affiliates of Landlord that are designated by Landlord from time to time as additional insureds

on its liability policies and shall deliver a copy of the policies and renewal certificates to Landlord. All insurance policies required under this Section 10.C shall provide for thirty (30) days’ prior written notice to Landlord of any cancellation, termination, or reduction in coverage. Notwithstanding the above, Landlord retains the right to have Tenant provide other forms of insurance which may be reasonably required (i.e., required by other major landlords of comparable buildings in Santa Clara County) to cover future risks, but not more than once every forty-eight (48) months.

Except as expressly provided elsewhere in this Lease, Landlord and Tenant hereby waive all tort, contract or other rights each may have against the other on account of any loss or damage sustained by Landlord or Tenant, as the case may be, or to the Premises or its contents, which may arise from any risk covered by their respective insurance policies (or which would have been covered had such insurance policies been maintained in accordance with this Lease) as set forth above. The Parties shall each obtain from their respective insurance companies a waiver of any right of subrogation which said insurance company may have against Landlord or Tenant, as the case may be.

Tenant shall be liable for and shall pay as additional rent, prior to delinquency, all taxes and assessments levied against Tenant’s personal property and trade or business fixtures. All real estate taxes shall be prorated to reflect the Commencement Date (as it relates to the Initial Space), the Expansion Space Commencement Date (as it relates to the Expansion Space) and Expiration Date. If, at any time during the Lease Term a tax, excise on rents, business license tax or any other tax, however described, is levied or assessed against Landlord as a substitute or addition, in whole or in part, for taxes assessed or imposed on land or buildings, Tenant shall pay and discharge its pro rata share of such tax or excise on rents or other tax before it becomes delinquent; except that this provision is not intended to cover net income taxes, inheritance,

gift or estate tax imposed upon Landlord. In the event that a tax is placed, levied, or assessed against Landlord and the taxing authority takes the position that Tenant cannot pay and discharge its pro rata share of such tax on behalf of Landlord, then at Landlord’s sole election, Landlord may increase the Base Monthly Rent by the exact amount of such tax and Tenant shall pay such increase. If by virtue of any application or proceeding brought by Landlord, there results a reduction in the assessed value of the Premises during the Lease Term, Tenant agrees to pay Landlord a fee consistent with the fees charged by a third party appeal firm for such services.

Tenant shall arrange for and pay directly to the providing utility all water, gas, electric, telephone, and other utilities supplied to the Premises. Landlord shall not be liable for loss of or injury to person or property, however occurring, through or in connection with or incidental to furnishing or the utility company’s failure to furnish utilities to the Premises or any other portion of the Project, and in such event Tenant shall not be entitled to abatement or reduction of any portion of Base Monthly Rent or any other amount payable under this Lease and the continued effectiveness of this Lease shall not be affected thereby. Tenant acknowledges that the Premises, the Building and/or the Project may become subject to the rationing of utility services or restrictions on utility use as required by a public utility company, governmental agency or other similar entity having jurisdiction thereof. Tenant acknowledges and agrees that its tenancy and occupancy hereunder shall be subject to such rationing or restrictions as may be imposed upon Landlord, Tenant, the Premises, the Building and/or the Project, and Tenant shall in no event be excused or relieved from any covenant or obligation to be kept or performed by Tenant by reason of any such rationing or restrictions.

Without the prior written consent of Landlord, neither Tenant, nor any subtenant of

the Premises (of any tier in the chain of title) or any of Tenant’s or such subtenant’s agents, employees, representatives, affiliates, architects, contractors (including without limitation subcontractors of all tiers), suppliers, vendors, subtenants, licensees or invitees (collectively “Tenant’s Agents”), shall cause or permit any Hazardous Materials, as defined below, to be generated, brought onto, used, stored, created, released or disposed of in or about the Premises or Project, except that Tenant may use and store small quantities of common household cleaners and office supplies on the Premises provided such use and storage is in strict compliance with all Environmental Laws, as defined below. As used herein, the term “Hazardous Materials” shall mean any and all substances, materials or wastes (whether liquid, solid or gaseous), which are a pollutant or contaminant, or which are hazardous, toxic, ignitable, reactive, corrosive, dangerous, harmful or injurious, or which present a risk to public health or the environment, or which are or may become regulated by or under the authority of any Environmental Laws, as defined below, including, without limitation, asbestos or asbestos containing materials, petroleum products, pesticides, polychlorinated biphenyls, flammable explosives, radioactive materials and urea formaldehyde. As used herein, the term “Environmental Laws” shall mean any present or future federal, state or local Laws, whether common law, statute, rule, regulation or ordinance, judgment, order, or other governmental restriction, guideline, listing or requirement, relating to the environment or any Hazardous Materials, including without limitation, the Comprehensive Environmental Response, Compensation, and Liability Act of 1980, 42 U.S.C. §9601 et seq., the Resource Conservation and Recovery Act of 1976, 42 U.S.C. §6901 et seq., and applicable provisions of the California Health and Safety Code and the California Water Code, all as heretofore or hereafter may be amended from time to time. In order to obtain consent, Tenant shall deliver to Landlord its written proposal describing the Hazardous Materials to be brought onto the Premises, measures to be taken for storage and disposal thereof, and safety measures to be employed to prevent pollution or contamination of the air, soil, surface and ground water. Landlord’s approval may be withheld in its

reasonable judgment. Without diminishing Tenant’s obligation to obtain Landlord’s consent to Tenant’s use of Hazardous Materials on the Premises where this Lease requires such consent, Tenant represents and warrants that it shall comply with all Governmental Regulations applicable to Hazardous Materials including doing the following: (i) adhere to all reporting and inspection requirements imposed by Federal, State, County or Municipal Laws and provide Landlord a copy of any such reports or agency inspections; (ii) obtain and provide Landlord copies of all necessary permits required for the use and handling of Hazardous Materials on the Premises; (iii) enforce Hazardous Materials handling and disposal practices consistent with industry standards; (iv) surrender the Premises and Project free from any and all Hazardous Materials generated, brought, used, stored, created, released, or disposed of (collectively and individually, “Released”) by Tenant or Tenant’s Agents or by anyone else (other than Landlord or Landlord’s agents, employees or contractors) coming onto the Premises; and (v) if required in connection with Hazardous Materials Released by Tenant or Tenant’s Agents, properly close the facility with regard to Hazardous Materials including the removal or decontamination of any process piping, mechanical ducting, storage tanks, containers, or trenches which have come into contact with Hazardous Materials and obtaining a closure certificate from the local administering agency prior to the Expiration Date or sooner termination of this Lease.

Tenant shall, at its sole cost and expense and with counsel reasonably acceptable to Landlord, indemnify, defend and hold harmless Landlord and the Landlord Related Parties from and against any and all claims, liabilities, obligations, penalties, fines, actions, losses, damages, costs or expenses (including without limitation reasonable attorneys fees) incurred or suffered arising from generating, bringing, using, storing, creating, releasing or disposing of Hazardous Materials in or about the Premises or Project by Tenant or Tenant’s Agents, or by anyone else coming onto the Premises (other than Landlord or Landlord’s agents, employees and contractors), or the

violation of any Governmental Regulation or Environmental Laws by Tenant or Tenant’s Agents or by anyone else coming onto the Premises (other than Landlord or Landlord’s agents, employees or contractors). This indemnification, defense and hold harmless obligation applies whether or not the concentrations of any such Hazardous Materials exceed applicable maximum contaminant or action levels or any governmental agency has issued a cleanup order. Tenant’s indemnification, defense, and hold harmless obligations include, without limitation, the following: (i) claims, liabilities, costs or expenses resulting from or based upon administrative, judicial (civil or criminal) or other action, legal or equitable, brought by any private or public person under present or future Laws, including Environmental Laws; (ii) claims, liabilities, costs or expenses pertaining to the assessment and identification, monitoring, cleanup, containment, or removal of Hazardous Materials from soils, riverbeds or aquifers including the provision of an alternative public drinking water source; (iii) losses attributable to diminution in the value of the Premises, Building or Project as a result of any generation, bringing upon, use, storage, creation, release or disposal of (collectively and individually, a “Release”) Hazardous Materials in or about the Premises or Project by Tenant or Tenant’s Agents; (iv) loss or restriction of use of rentable space in the Building or Project as a result of any Release of Hazardous Materials in or about the Premises or Project by Tenant or Tenant’s Agents; (v) adverse effect on the marketing of any space in the Building or Project; and (vi) all other liabilities, obligations, penalties, fines, claims, actions (including remedial or enforcement actions of any kind and administrative or judicial proceedings, orders or judgments), damages (including consequential and punitive damages), and costs (including attorney, consultant, and expert fees and expenses) resulting from the release or violation. This Section 13.B shall survive the expiration or termination of this Lease.

If, during the Lease Term (including any extensions), Tenant becomes aware of (i) any actual or threatened release of any Hazardous

Materials on, under or about the Premises or Project or (ii) any inquiry, investigation, proceeding, claim, notice or order by any private or public person or entity regarding the presence of Hazardous Materials on, under or about the Premises or Project, including without limitation alleged violations of Environmental Laws by Tenant or Tenant’s Agents, Tenant shall give Landlord written notice of the release or investigation within five (5) days after learning of it and shall simultaneously and thereafter furnish Landlord with copies of any claims, notices of violation, reports, or other writings received by Tenant concerning the release or investigation. In the event of an actual release of Hazardous Materials, Tenant shall also give Landlord immediate verbal notice of such release. In the event of any release on or into the Premises or any portion of the Project or into the soil or ground water under the Premises, the Building or the Project of any Hazardous Materials used, treated, stored or disposed of by Tenant or Tenant’s Agents or by anyone else (other than Landlord or Landlord’s agents, employees or contractors) coming onto the Premises, Tenant agrees to comply, at its sole cost, with all laws, regulations, ordinances and orders of any federal, state or local agency relating to the monitoring or remediation of such Hazardous Materials. In the event of any such release of Hazardous Materials Tenant shall immediately give verbal and follow-up written notice of the release to Landlord, and Tenant agrees to meet and confer with Landlord and any lender designated by Landlord to attempt to eliminate and mitigate any financial exposure to such lender and resultant exposure to Landlord under California Code of Civil Procedure Section 736(b) as a result of such release, and promptly to take reasonable monitoring, cleanup and remedial steps given, inter alia, the historical uses to which the Project has and continues to be used, the risks to public health posed by the release, the then available technology and the costs of remediation, cleanup and monitoring, consistent with acceptable customary practices for the type and severity of such contamination and all applicable Laws. Nothing in the preceding sentence shall eliminate, modify or reduce the obligation of Tenant under Section 13.B of this Lease to indemnify, defend and hold Landlord and the Landlord Related Parties harmless. Tenant shall provide Landlord prompt written notice of

Tenant’s monitoring, cleanup and remedial steps. In the absence of an order of any federal, state or local governmental or quasi-governmental agency relating to the cleanup, remediation or other response action required by applicable law, any dispute arising between Landlord and Tenant concerning Tenant’s obligation to Landlord under this Section 13.C concerning the level, method, and manner of cleanup, remediation or response action required in connection with such a release of Hazardous Materials shall be resolved by mediation and/or arbitration pursuant to this Lease.

In the event of any release on, under or about the Premises or the Project of any Hazardous Materials generated, brought onto, used, stored, created or disposed of by Tenant or Tenant’s Agents or by anyone else (other than Landlord or Landlord’s agents, employees or contractors) coming onto the Premises, Tenant shall, at its sole cost, promptly take all necessary and appropriate actions, in compliance with applicable Environmental Laws, to remove or remediate such Hazardous Materials, whether or not any governmental agency has issued a cleanup order, so as to return the Premises and Project to the condition that existed before the introduction of such Hazardous Materials. Tenant shall obtain Landlord’s written consent prior to implementing any proposed removal or remedial action, provided, however, that Tenant shall be entitled to respond immediately to an emergency without first obtaining Landlord’s written consent. Nothing in the preceding sentence shall in any way eliminate, modify or reduce the obligation of Tenant under 13.B of this Lease to indemnify, defend and hold Landlord and the Landlord Related Parties harmless.

Landlord and its agents and consultants shall have the right to inspect, investigate, sample and monitor the Premises, including any air, soil, water, ground water, or to conduct any other sampling or testing, digging, drilling or analysis, to determine whether Tenant is complying with the terms of this Section 13. The costs incurred by Landlord in performing the work described in

the next sentence shall be at Landlord’s sole cost, unless Landlord discovers that Tenant is not in compliance with the terms of this Section 13. If Landlord discovers that Tenant is not in compliance with the terms of this Section 13, the costs incurred by Landlord in determining Tenant’s non compliance, including attorneys’, consultants’ and experts’ fees, shall be due and payable by Tenant to Landlord within five (5) days following Landlord’s written demand therefor.

To the actual knowledge of John M. Sobrato, except as disclosed by that certain Summary of Environmental Evaluation – 4301, 4401 and 4451 Great America Parkway – Santa Clara, California, dated December 7, 2007, and prepared by PES Environmental, Inc., (a) no Hazardous Material is present in, on or under the Building or the Project or the soil, surface water or groundwater thereof, (b) no underground storage tanks are present on the Project, and (c) no action, proceeding or claim is pending or threatened regarding the Building or the Project concerning any Hazardous Material or pursuant to any Environmental Law. Under no circumstance shall Tenant be liable to Landlord for, and Landlord shall not require Tenant to remove or remediate (or pay for the cost thereof), any Hazardous Material that are present as of the Delivery Date or that have migrated to or under the Building or the Project from off-site sources.

If, during the course of construction of the Tenant Improvements, Tenant discovers any Hazardous Materials which were present in the Building as of the Delivery Date, Tenant shall give written notice of the existence of such Hazardous Materials to Landlord promptly upon discovery, and Landlord shall promptly take all necessary and appropriate actions, in compliance with applicable Environmental Laws, to remove or remediate such Hazardous Materials, and shall use its best efforts to cause such removal or remediation actions to be completed with the least possible interference with, or delay in, Tenant’s construction of the Tenant Improvements.

The occurrence of any of the following shall constitute a material default and breach of this Lease by Tenant (each, an “Event of Default” or “event of default”): (i) Tenant’s failure to pay the Base Monthly Rent or any other payment due under this Lease (including additional rent) by the date such amount is due, excepting the first failure to pay in any twelve (12) month period provided such first failure is cured within three (3) business days after receipt of written notice; (ii) [intentionally deleted]; (iii) Tenant’s failure to observe and perform any other required provision of this Lease, where such failure continues for thirty (30) days after written notice from Landlord, provided, however, that if the nature of the default is such that it cannot reasonably be cured within such thirty (30) day period, Tenant shall not be deemed in default if it commences within such period to cure, and thereafter diligently prosecutes the same to completion not later than one hundred twenty (120) days after such written notice is delivered to Tenant, except however that if this Lease expressly provides that no notice or cure is required for a breach or default to exist then such thirty (30) day notice and cure periods described above shall not apply; (iv) Tenant’s making of any general assignment for the benefit of creditors; (v) the filing by or against Tenant of a petition to have Tenant adjudged a bankrupt or of a petition for reorganization or arrangement under any law relating to bankruptcy (unless, in the case of a petition filed against Tenant, the same is dismissed within thirty (30) days after the filing); (vi) the appointment of a trustee or receiver to take possession of substantially all of Tenant’s assets located at the Premises or of Tenant’s interest in this Lease, where possession is not restored to Tenant within thirty (30) days; (vii) the attachment, execution or other judicial seizure of substantially all of Tenant’s assets located at the Premises or of Tenant’s interest in this Lease, where such seizure is not discharged within thirty (30) days; (viii) an event of default of the tenant under the Building A Lease, or a default of the tenant under any lease of any portion of 4551 GAP entered into pursuant to Section 19.E below, without the necessity for additional notice or cure

under this Lease, or (viii) the occurrence (beyond any applicable notice and cure periods) of any other event described as a default elsewhere in this Lease or any amendment thereto regardless of whether such event is defined as a material default and breach of this Lease in this Section 14.

In the event of any default by Tenant beyond applicable notice and cure periods, then in addition to other remedies available to Landlord at law or in equity, Landlord shall have the immediate option to terminate this Lease and all rights of Tenant hereunder by giving written notice of such intention to terminate. In the event Landlord elects to so terminate this Lease, Landlord may recover from Tenant all the following: (i) the worth at time of award of any unpaid rent which had been earned at the time of such termination; (ii) the worth at time of award of the amount by which the unpaid rent which would have been earned after termination until the time of award exceeds the amount of such rental loss for the same period that Tenant proves could have been reasonably avoided; (iii) the worth at time of award of the amount by which the unpaid rent for the balance of the Lease Term after the time of award exceeds the amount of such rental loss that Tenant proves could be reasonably avoided; (iv) any other amount necessary to compensate Landlord for all detriment proximately caused by Tenant’s failure to perform its obligations under this Lease, or which in the ordinary course of things would be likely to result therefrom; including the following: (x) expenses for repairing, altering or remodeling the Premises for purposes of reletting, (y) broker’s fees, advertising costs or other expenses of reletting the Premises, and (z) costs of carrying the Premises such as taxes, insurance premiums, utilities and security precautions; and (v) at Landlord’s election, such other amounts in addition to or in lieu of the foregoing as may be permitted by applicable California law. The term “rent”, as used in this Lease, is defined as the minimum monthly installments of Base Monthly Rent and all other sums required to be paid by Tenant pursuant to this Lease, all such other sums being deemed as additional rent due hereunder. As used in (i) and (ii) above, “worth at the time of

award” shall be computed by allowing interest at a rate equal to the greater of the following (the “Agreed Interest Rate”) (i) the discount rate of the Federal Reserve Bank of San Francisco plus five (5%) percent per annum, as of the twenty-fifty (25th) day of the month immediately preceding Tenant’s default, on advances to member banks under Section 13 and 13(a) of the Federal Reserve Act, as now in effect or hereafter from time to time amended, or (ii) ten percent (10%) per annum. As used in (iii) above, “worth at the time of award” shall be computed by discounting such amount at the discount rate of the Federal Reserve Bank of San Francisco at the time of award plus one (1%) percent. Furthermore, in the event of a default as described in clause (iv), (v), (vi) or (vii) in Section 14.A above, Landlord reserves the right to compensation for all damages and costs incurred by Landlord as a result of Tenant’s default, including without limitation those based upon a tort claim or contractual claim, and without any cap other than that imposed by the United States Bankruptcy Code (as amended, and as interpreted by case law, the “Code”) with respect to rent, as defined in the Code. Tenant hereby waives the protection of any limitation in the Code imposed upon such damages to the extent such waiver is enforceable under the Code, and Tenant hereby agrees that the Security Deposit may be retained by Landlord for purposes of compensation for any and all tort or contractual or other claims by Landlord against Tenant. Any obligation Landlord may have to mitigate damages upon a termination due to Tenant’s default shall not include the obligation to relet the Premises if Landlord has other comparable available space within the Building or Project.

In the event of any such default by Tenant, Landlord shall have the right, after terminating this Lease, to re-enter the Premises and remove all persons and property in accordance with applicable law. Such property may be removed and stored in a public warehouse or elsewhere at the cost of and for the account of Tenant, and disposed of by Landlord, in any manner permitted by law.

If Landlord does not elect to terminate this Lease as provided in Section 14.B above, then the provisions of California Civil Code Section 1951.4, (Landlord may continue the Lease in effect after Tenant’s breach and abandonment and recover rent as it becomes due if Tenant has a right to sublet and assign, subject only to reasonable limitations) as amended from time to time, shall apply, this Lease shall continue in effect, and Landlord may enforce all of its rights and remedies under this Lease, including without limitation, the right to recover payment of rent as it becomes due.

Neither efforts by Landlord to mitigate damages caused by a breach or default of Tenant, nor acts of maintenance or preservation or efforts to relet the Premises shall constitute an election by Landlord to terminate the Lease or a termination of Tenant’s right to possession of the Premises.

Landlord may accept Tenant’s payments without waiving any rights under this Lease, including rights under a previously served notice of default, except with respect to the payment accepted. No payment by Tenant or receipt by Landlord of a lesser amount than any installment of rent due shall be deemed as other than payment on account of the amount due. If Landlord accepts payments after serving a notice of default, Landlord may nevertheless commence and pursue an action to enforce rights and remedies under the previously served notice of default as to payments not accepted or performance not completed without giving Tenant any further notice or demand. Furthermore, the Landlord’s acceptance of rent from the Tenant when the Tenant is holding over without express written consent does not convert Tenant’s tenancy from a tenancy at sufferance to a month to month tenancy. No waiver of any provision of this Lease shall be implied by any failure of Landlord to enforce any remedy for the violation of that provision, even if that violation continues or is repeated. Any waiver by Landlord of any provision of this Lease

must be in writing. Such waiver shall affect only the provision specified and only for the time and in the manner stated in the writing. No delay or omission in the exercise of any right or remedy by Landlord shall impair such right or remedy or be construed as a waiver thereof by Landlord. No act or conduct of Landlord, including, without limitation, the acceptance of keys to the Premises, shall constitute acceptance of the surrender of the Premises by Tenant before the Expiration Date. Only written notice from Landlord to Tenant of acceptance shall constitute such acceptance of surrender of the Premises. Landlord’s consent to or approval of any act by Tenant which requires Landlord’s consent or approvals shall not be deemed to waive or render unnecessary Landlord’s consent to or approval of any subsequent act by Tenant. The voluntary or other surrender of this Lease by Tenant, or a mutual cancellation thereof, shall not work a merger and shall, at the option of Landlord, terminate all or any existing subleases or subtenants, or may, at the option of Landlord, operate as an assignment to Landlord of any or all such subleases or subtenants

If Tenant fails to perform any obligation required under this Lease or by Laws beyond applicable notice and cure periods, Landlord in its sole and absolute discretion may, without notice, without waiving any rights or remedies and without releasing Tenant from its obligations hereunder, perform such obligation, in which event Tenant shall pay Landlord as additional rent all sums paid by Landlord in connection with such substitute performance, including interest at the Agreed Interest Rate within ten (10) days of Landlord’s written notice for such payment.

The provisions of Section 14 notwithstanding, the Parties agree that if Tenant shall have defaulted beyond applicable notice and cure periods in the payment of Base Monthly Rent or any scheduled payment of Reimbursable Operating Costs for three (3) or more times during any twelve (12) month period during the Lease Term, then such conduct shall, at the election of the Landlord, represent a separate

event of default which cannot be cured by Tenant. Tenant acknowledges that the purpose of this provision is to prevent repetitive defaults by Tenant, which work a hardship upon Landlord and deprive Landlord of Tenant’s timely performance under this Lease.

In the event of Landlord’s failure to perform any of its covenants or agreements under this Lease, Tenant shall give Landlord written notice of such failure and shall give Landlord thirty (30) days to cure or commence to cure such failure prior to any claim for breach or resultant damages, provided, however, that if the nature of the default is such that it cannot reasonably be cured within the 30-day period, Landlord shall not be deemed in default if it commences within such period to cure, and thereafter diligently prosecutes the same to completion. In addition, upon any such failure by Landlord, Tenant shall give notice by registered or certified mail to any person or entity with a security interest in the Premises (“Mortgagee”) that has provided Tenant with notice of its interest in the Premises, and shall provide Mortgagee a reasonable opportunity to cure such failure, including such time to obtain possession of the Premises by power of sale or judicial foreclosure, if such should prove necessary to effectuate a cure. Tenant agrees that each of the Mortgagees to whom this Lease has been assigned is an express third-party beneficiary hereof. Tenant waives any right under California Civil Code Section 1950.7 or any other present or future law to the collection of any payment or deposit from Mortgagee or any purchaser at a foreclosure sale of Mortgagee’s interest unless Mortgagee or such purchaser shall have actually received and not refunded the applicable payment or deposit. Tenant further waives any right to terminate this Lease and to vacate the Premises on Landlord’s default under this Lease. Tenant’s sole remedy on Landlord’s default is an action for damages or injunctive or declaratory relief; provided, however, Landlord and the Landlord Related Parties shall not be liable to Tenant for any consequential damages suffered or incurred by Tenant on account of Landlord’s default including, without limitation,

on account of lost profits or the interruption of Tenant’s business. Tenant hereby agrees that Landlord shall not be liable for injury to Tenant’s business or any loss of income therefrom or for damage to the goods, wares, merchandise, or other property of Tenant, Tenant’s employees, invitees, customers, or any other person in or about the Premises or the Project, nor shall Landlord be liable for injury to the person of Tenant, Tenant’s employees, agents, contractors, or any other person in or about the Premises or Project, whether such damage or injury is caused by or results from fire, steam, electricity, gas, water, or rain, or from the breakage, leakage, obstruction, or other defects of pipes, sprinklers, wires, appliances, plumbing, air conditioning, or lighting fixtures, or from any other cause, whether said damage or injury results from conditions arising upon the Premises or upon other portions of the Project or from other sources or places and regardless of whether the cause of such damage or injury or the means of repairing the same is inaccessible to Tenant. Landlord shall not be liable for any damages arising from any act or neglect of any other tenant, occupant, or user of the Project, nor from the failure of Landlord to enforce the provisions of any other lease of the Project.

If Landlord is a corporation, trust, partnership, joint venture, unincorporated association or other form of business entity, then the obligations of Landlord shall not constitute personal obligations of the Landlord Related Parties. Tenant shall have recourse only to the interest of Landlord in the Premises (including without limitation, the proceeds from the sale and rental thereof) for the satisfaction of the obligations of Landlord and shall not have recourse to any other assets of Landlord for the satisfaction of such obligations.

As a material part of the consideration rendered to Landlord, Tenant hereby waives all claims against Landlord for damages to goods, wares and merchandise, and all other personal property in, upon or about said Premises and for injuries to persons in or about said Premises or