Exhibit 4.3

GLOBAL NOTE

THIS SECURITY IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE REFERRED TO IN THIS SECURITY AND IS REGISTERED IN THE NAME OF A DEPOSITARY OR ITS NOMINEE.  THIS SECURITY MAY NOT BE TRANSFERRED TO, OR REGISTERED OR EXCHANGED FOR SECURITIES REGISTERED IN THE NAME OF, ANY PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE OR A SUCCESSOR OF SUCH DEPOSITARY OR A NOMINEE OF SUCH SUCCESSOR AND NO SUCH TRANSFER MAY BE REGISTERED, EXCEPT IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE.  EVERY SECURITY AUTHENTICATED AND DELIVERED UPON REGISTRATION OF TRANSFER OF, OR IN EXCHANGE FOR OR IN LIEU OF, THIS SECURITY SHALL BE A GLOBAL SECURITY SUBJECT TO THE FOREGOING, EXCEPT IN SUCH LIMITED CIRCUMSTANCES.

UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.

THIS SECURITY IS NOT A DEPOSIT AND IS NOT INSURED BY THE FEDERAL DEPOSIT INSURANCE CORPORATION OR ANY FEDERAL OR OTHER GOVERNMENTAL AGENCY.

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LEGACYTEXAS FINANCIAL GROUP, INC.

5.50% Fixed-to-Floating Rate Notes due December 1, 2025

LegacyTexas Financial Group, Inc., a corporation duly organized and existing under the laws of the State of Maryland (hereinafter called the “Company”, which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to CEDE & Co., or registered assigns the principal sum as set forth in the Schedule of Increases or Decreases in Note attached hereto on December 1, 2025 (such date is hereinafter referred to as the “Maturity Date”), and to pay interest thereon, as hereinafter set forth.

The Notes will bear interest at a fixed rate of 5.50% per annum from and including June 1, 2016 to but excluding December 1, 2020 (the “Fixed Rate Period”). Interest accrued on the Notes during the Fixed Rate Period will be payable semi-annually in arrears on June 1 and December 1 of each year, commencing on December 1, 2016 (each such date a “Fixed Rate Interest Payment Date”). The interest accrued during the Fixed Rate Period will be paid to each holder in whose name a Note is registered at the close of business on May 15 and November 15 (whether or not a Business Day) immediately preceding the applicable Fixed Rate Interest Payment Date.

The Notes will bear a floating interest rate from and including December 1, 2020 to but excluding the Maturity Date or earlier redemption (the “Floating Rate Period”).  The floating interest rate will be equal to the then-current three-month LIBOR on the determination date of the applicable interest period plus 389 basis points.  Interest accrued on the Notes during the Floating Rate Period will be payable quarterly in arrears on March 1, June 1, September 1, and December 1 of each year (each such date, a “Floating Rate Interest Payment Date”, together with a “Fixed Rate Interest Payment Date”, an “Interest Payment Date”).  The interest accrued during the Floating Rate Period will be paid to each holder in whose name a Note is registered at the close of business on the February 15, May 15, August 15, and November 15 (whether or not a Business Day) immediately preceding the applicable Floating Rate Interest Payment Date.

‘‘LIBOR’’ means the rate as published by Bloomberg (or another commercially available source providing quotations of such rate as selected by the Company from time to time) at approximately 11:00 a.m., London time, two Business Days prior to the commencement of the relevant quarterly interest period, as the rate for dollar deposits in the London interbank market with a three-month maturity. If such rate is not available at such time for any reason, then the rate for that interest period will be determined by such alternate method as reasonably selected by the Company.

Interest will be computed on the basis of a 360-day year consisting of twelve 30-day months from and including June 1, 2016 to but excluding December 1, 2020, and, thereafter, a 360-day year and the number of days actually elapsed.

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In the event that any scheduled Interest Payment Date for the Notes falls on a day that is not a Business Day, then payment of interest payable on such Interest Payment Date will be postponed to the next succeeding day which is a Business Day (and no interest on such payment will accrue for the period from and after such scheduled Interest Payment Date).

In the event that the Maturity Date for any Note falls on a day that is not a Business Day, then the related payments of principal, premium, if any, and interest may be made on the next succeeding day that is a Business Day (and no additional interest will accumulate on the amount payable for the period from and after the Maturity Date).  Interest due on the Maturity Date (whether or not an Interest Payment Date) of any Notes will be paid to the Person to whom principal of such Notes is payable.

Payment of the principal of and interest on this Note will be made at the office or agency of the Company maintained for that purpose in Dallas, Texas, which shall initially be the principal office of the Trustee located therein, in such coin or currency of the United States of America as at the time of payment is legal tender for payment of public and private debts; provided, however, that payment of interest may be made at the option of the Company by check mailed to the Person entitled thereto at such address as shall appear in the Security register (subject to surrender of the relevant Note in the case of a payment of interest on the Maturity Date).

Reference is hereby made to the further provisions of this Note set forth on the reverse hereof, which further provisions shall for all purposes have the same effect as if set forth at this place.

Unless the certificate of authentication hereon has been executed by the Trustee referred to on the reverse hereof by manual or facsimile signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose.

[Signature Pages Follow]

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IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed.

Dated: September 20, 2016

LEGACYTEXAS FINANCIAL GROUP, INC.

[Signature Page to Global Note]

TRUSTEE’S CERTIFICATE OF AUTHENTICATION

This is one of the Securities of the series designated therein referred to in the within-mentioned Indenture.

Dated: September 20, 2016

U.S. BANK NATIONAL ASSOCIATION,

As Trustee

REVERSE OF NOTE

LEGACYTEXAS FINANCIAL GROUP, INC.

This Note is one of a duly authorized issue of securities of the Company (herein called the “Note”), issued and to be issued in one or more series under an Indenture (the “Base Indenture”), dated as of November 23, 2015, between the Company and U.S. Bank National Association, as Trustee (herein called the “Trustee,” which term includes any successor trustee), as amended and supplemented by the First Supplemental Indenture between the Company and the Trustee (the “Supplemental Indenture” and together with the Base Indenture, the “Indenture”) dated as of November 23, 2015, to which Indenture reference is hereby made for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Notes and of the terms upon which the Notes are, and are to be, authenticated and delivered. This Note is one of the series designated on the face hereof, initially limited in aggregate principal amount to $75,000,000 and subsequently increased to $125,000,000. The terms of this Note include those stated in the Indenture and those made part of the Indenture by reference to the Trust Indenture Act. This Note is subject to all such terms, and Holders are referred to the Indenture and the Trust Indenture Act for a statement of such terms. To the extent any provision of this Note conflicts with the express provisions of the Indenture, the provisions of the Indenture shall govern and be controlling (to the extent permitted by law).

All terms used in this Note that are defined in the Indenture shall have the meaning assigned to them in the Indenture.

The Company may, at its option, beginning with the Interest Payment Date of December 1, 2020, but not prior thereto, and on any Interest Payment Date thereafter, redeem the Notes, in whole or in part, subject to obtaining the prior approval of the FRB to the extent such approval is then required under the rules of the FRB, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest to, but excluding, the date of redemption.

The Notes may not otherwise be redeemed prior to the Maturity Date, except that the Company may also, at its option, redeem the Notes before the Maturity Date in whole, at any time, or in part from time to time, upon the occurrence of (i) a Tax Event, (ii) a Tier 2 Capital Event, or (iii) the Company becoming required to register as an investment company pursuant to the Investment Company Act of 1940, as amended, in each case, at a redemption price equal to 100% of the principal amount of the Notes to be redeemed plus accrued and unpaid interest to, but excluding, the date of redemption.

The Notes will not be redeemable at the option of the Company except as set forth in Article 3 of the Supplemental Indenture.  Notice of redemption shall be given in accordance with Article XI of the Base Indenture.  Any partial redemption of the Notes will be made pro rata among all of the Holders of the Notes. Notice of redemption of the Notes to be redeemed at the election of the Company shall be given by the Company or, at the Company’s request, by the Trustee in the name and at the expense of the Company; provided, however, that the Company shall have delivered to the Trustee, at least five Business Days prior to the giving of notice of redemption, an Officers’ Certificate requesting that the Trustee give such notice and setting forth the

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information to be stated in the notice as provided in Article XI of the Base Indenture.  Any notice of redemption may be conditional at the Company’s discretion on one or more conditions precedent, and the redemption date may be delayed until such time as any or all of such conditions have been satisfied.

The Notes are not subject to repayment at the option of the Holders of the Notes. The Notes are not entitled to the benefit of any sinking fund.

If an Event of Default with respect to Notes shall occur and be continuing, the principal of the Notes shall become immediately due and payable in the manner and with the effect provided in the Indenture.

The Indenture permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Notes at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Notes affected thereby and at the time Outstanding.  The Indenture also contains provisions permitting the Holders of a majority in principal amount of the Notes at the time Outstanding, on behalf of the Holders of all Notes, to waive certain past defaults under the Indenture and their consequences.  Any such consent or waiver by the Holder of this Note shall be conclusive and binding upon such Holder and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note.

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Note is registrable in the Security Register, upon surrender of this Note for registration of transfer at the office or agency of the Company in any place where the principal of and interest on this Note are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Notes, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees.

The Notes are issuable only in registered form without coupons in denominations of $2,000 and any integral multiple of $1,000 in excess thereof.

The Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Note is registered as the owner hereof for all purposes, whether or not this Note is overdue, and neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary.

THIS NOTE SHALL BE DEEMED TO BE A CONTRACT MADE UNDER THE LAWS OF THE STATE OF NEW YORK, AND FOR ALL PURPOSES SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS OF SAID STATE.

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ASSIGNMENT FORM

To assign this Security, fill in the form below:

I or we assign and transfer this Security to:

and irrevocably appoint ________________________ as agent to transfer this Security on the books of the Company.  The agent may substitute another to act for him.

* NOTICE: The Signature must be guaranteed by an Institution which is a member of one of the following recognized signature Guarantee Programs: (i) The Securities Transfer Agent Medallion Program (STAMP); (ii) The New York Stock Exchange Medallion Program (MNSP); (iii) The Stock Exchange Medallion Program (SEMP); or (iv) such other guarantee program acceptable to the Trustee.

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SIGNATURE GUARANTEE

Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the Security registrar, which requirements include membership or participation in the Security Transfer Agent Medallion Program (“STAMP”) or such other “signature guarantee program” as may be determined by the Security registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended.

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SCHEDULE OF INCREASES OR DECREASES IN NOTE

The initial principal amount of this Note is $50,000,000.  The following increases or decreases in the principal amount of this Note have been made:

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