Document:

Purchase Contract and Pledge Agreement

 Exhibit 4.1 
 EXECUTION COPY 
 BANKUNITED FINANCIAL CORPORATION 
 and 
 THE BANK OF NEW YORK  

as Purchase Contract Agent 
 and

 THE BANK OF NEW YORK 
 as Collateral Agent, Custodial Agent and Securities Intermediary 
 PURCHASE CONTRACT AND PLEDGE AGREEMENT 
 HiMEDSSM Units 
 Dated as of April 25, 2007 
 “HiMEDS” is a service mark of J.P. Morgan Securities Inc. 
  

 TABLE OF CONTENTS 
  

							
	 ARTICLE 1 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
	  	1
		 	Section 1.01.	  	Definitions	  	1
		 	Section 1.02.	  	Compliance Certificates and Opinions	  	14
		 	Section 1.03.	  	Form of Documents Delivered to Purchase Contract Agent	  	15
		 	Section 1.04.	  	Acts of Holders; Record Dates	  	15
		 	Section 1.05.	  	Notices	  	17
		 	Section 1.06.	  	Notice to Holders; Waiver.	  	17
		 	Section 1.07.	  	Effect of Headings and Table of Contents	  	17
		 	Section 1.08.	  	Successors and Assigns	  	17
		 	Section 1.09.	  	Separability Clause	  	18
		 	Section 1.10.	  	Benefits of Agreement	  	18
		 	Section 1.11.	  	Governing Law	  	18
		 	Section 1.12.	  	Legal Holidays	  	18
		 	Section 1.13.	  	Counterparts	  	19
		 	Section 1.14.	  	Inspection of Agreement	  	19
		 	Section 1.15.	  	Appointment of Financial Institution as Agent for the Company	  	19
		 	Section 1.16.	  	No Waiver	  	19
		 	Section 1.17.	  	Tax Treatment	  	19
		
	 ARTICLE 2 CERTIFICATE FORMS
	  	19
		 	Section 2.01.	  	Forms of Certificates Generally	  	19
		 	Section 2.02.	  	Form of Purchase Contract Agent’s Certificate of Authentication	  	20
		
	 ARTICLE 3 THE HiMEDS UnitS
	  	20
		 	Section 3.01.	  	Amount; Form and Denominations	  	20
		 	Section 3.02.	  	Rights and Obligations Evidenced by the Certificates	  	21
		 	Section 3.03.	  	Execution, Authentication, Delivery and Dating	  	21
		 	Section 3.04.	  	Temporary Certificates	  	22
		 	Section 3.05.	  	Registration; Registration of Transfer and Exchange	  	23
		 	Section 3.06.	  	Book-Entry Interests	  	24
		 	Section 3.07.	  	Notices to Holders	  	25
		 	Section 3.08.	  	Appointment of Successor Depositary	  	25
		 	Section 3.09.	  	Definitive Certificates.	  	25
		 	Section 3.10.	  	Mutilated, Destroyed, Lost and Stolen Certificates	  	26
		 	Section 3.11.	  	Persons Deemed Owners	  	27
		 	Section 3.12.	  	Cancellation	  	27
		 	Section 3.13.	  	Creation of Treasury HiMEDS Units by Substitution of Treasury Securities	  	28
		 	Section 3.14.	  	Recreation of Corporate HiMEDS Units	  	30
		 	Section 3.15.	  	Transfer of Collateral upon Occurrence of Termination Event	  	31
		 	Section 3.16.	  	No Consent to Assumption	  	33
		 	Section 3.17.	  	Substitutions	  	33
		
	 ARTICLE 4 THE SENIOR NOTES
	  	33
		 	Section 4.01.	  	Interest Payments; Rights to Interest Payments Preserved	  	33

  

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		 	Section 4.02.	  	Notice and Voting	  	34
		 	Section 4.03.	  	Payments to Purchase Contract Agent	  	35
		 	Section 4.04.	  	Payments Held in Trust	  	35
		
	ARTICLE 5 THE PURCHASE CONTRACTS	  	35
		 	Section 5.01.	  	Purchase of Shares of Common Stock	  	35
		 	Section 5.02.	  	Payment of Purchase Price; Remarketing	  	39
		 	Section 5.03.	  	Issuance of Shares of Common Stock	  	43
		 	Section 5.04.	  	Adjustment of Settlement Rate	  	44
		 	Section 5.05.	  	Notice of Adjustments and Certain Other Events	  	53
		 	Section 5.06.	  	Termination Event; Notice	  	54
		 	Section 5.07.	  	Early Settlement	  	54
		 	Section 5.08.	  	No Fractional Shares	  	57
		 	Section 5.09.	  	Charges and Taxes	  	57
		 	Section 5.10.	  	Contract Adjustment Payments	  	57
		 	Section 5.11.	  	Deferral of Contract Adjustment Payments	  	62
		
	ARTICLE 6 RIGHTS AND REMEDIES OF HOLDERS	  	64
		 	Section 6.01.	  	Unconditional Right of Holders to Receive Contract Adjustment Payments and] to Purchase Shares of Common Stock	  	64
		 	Section 6.02.	  	Restoration of Rights and Remedies	  	64
		 	Section 6.03.	  	Rights and Remedies Cumulative	  	65
		 	Section 6.04.	  	Delay or Omission Not Waiver	  	65
		 	Section 6.05.	  	Undertaking for Costs	  	65
		 	Section 6.06.	  	Waiver of Stay or Extension Laws	  	65
		
	ARTICLE 7 THE PURCHASE CONTRACT AGENT	  	65
		 	Section 7.01.	  	Certain Duties and Responsibilities	  	65
		 	Section 7.02.	  	Notice of Default	  	66
		 	Section 7.03.	  	Certain Rights of Purchase Contract Agent	  	67
		 	Section 7.04.	  	Not Responsible for Recitals or Issuance of HiMEDS Units	  	68
		 	Section 7.05.	  	May Hold HiMEDS Units	  	68
		 	Section 7.06.	  	Money Held In Custody	  	69
		 	Section 7.07.	  	Compensation and Reimbursement	  	69
		 	Section 7.08.	  	Corporate Purchase Contract Agent Required, Eligibility	  	69
		 	Section 7.09.	  	Resignation and Removal; Appointment of Successor	  	70
		 	Section 7.10.	  	Acceptance of Appointment by Successor	  	71
		 	Section 7.11.	  	Merger, Conversion, Consolidation or Succession to Business	  	72
		 	Section 7.12.	  	Preservation of Information; Communications to Holders	  	72
		 	Section 7.13.	  	No Obligations of Purchase Contract Agent	  	72
		 	Section 7.14.	  	Tax Compliance	  	73
		
	ARTICLE 8 SUPPLEMENTAL AGREEMENTS	  	73
		 	Section 8.01.	  	Supplemental Agreements without Consent of Holders	  	73
		 	Section 8.02.	  	Supplemental Agreements with Consent of Holders	  	74
		 	Section 8.03.	  	Execution of Supplemental Agreements	  	75
		 	Section 8.04.	  	Effect of Supplemental Agreements	  	75

  

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		 	Section 8.05.	  	Reference to Supplemental Agreements	  	75
		
	ARTICLE 9 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE	  	76
		 	Section 9.01.	  	Covenant Not to Consolidate, Merge, Convey, Transfer or Lease Property Except under Certain Conditions	  	76
		 	Section 9.02.	  	Rights and Duties of Successor Corporation	  	76
		 	Section 9.03.	  	Officers’ Certificate and Opinion of Counsel Given to Purchase Contract Agent	  	77
		
	ARTICLE 10 COVENANTS	  	77
		 	Section 10.01.	  	Performance under Purchase Contracts	  	77
		 	Section 10.02.	  	Maintenance of Office or Agency	  	77
		 	Section 10.03.	  	Company to Reserve Common Stock	  	78
		 	Section 10.04.	  	Covenants as to Common Stock; Listing	  	78
		 	Section 10.05.	  	Statements of Officers of the Company as to Default	  	78
		 	Section 10.06.	  	ERISA	  	78
		 	Section 10.08.	  	Tax Treatment	  	79
		
	ARTICLE 11 PLEDGE	  	79
		 	Section 11.01.	  	Pledge	  	79
		 	Section 11.02.	  	Termination	  	79
		
	ARTICLE 12 ADMINISTRATION OF COLLATERAL	  	79
		 	Section 12.01.	  	Initial Deposit of Senior Notes	  	79
		 	Section 12.02.	  	Establishment of Collateral Account	  	79
		 	Section 12.03.	  	Treatment as Financial Assets	  	80
		 	Section 12.04.	  	Sole Control by Collateral Agent	  	80
		 	Section 12.05.	  	Jurisdiction	  	80
		 	Section 12.06.	  	No Other Claims	  	80
		 	Section 12.07.	  	Investment and Release	  	81
		 	Section 12.08.	  	Statements and Confirmations	  	81
		 	Section 12.09.	  	Tax Allocations	  	81
		 	Section 12.10.	  	No Other Agreements	  	81
		 	Section 12.11.	  	Powers Coupled with an Interest	  	81
		 	Section 12.12.	  	Waiver of Lien; Waiver of Set-off	  	81
		
	ARTICLE 13 RIGHTS AND REMEDIES OF THE COLLATERAL AGENT	  	81
		 	Section 13.01.	  	Rights and Remedies of the Collateral Agent	  	81
		
	ARTICLE 14 REPRESENTATIONS AND WARRANTIES TO COLLATERAL AGENT; HOLDER COVENANTS	  	82
		 	Section 14.01.	  	Representations and Warranties	  	82
		 	Section 14.02.	  	Covenants	  	83
		
	ARTICLE 15 THE COLLATERAL AGENT, THE CUSTODIAL AGENT AND THE SECURITIES INTERMEDIARY	  	83
		 	Section 15.01.	  	Appointment, Powers and Immunities	  	83

  

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		 	Section 15.02.	  	Instructions of the Company	  	84
		 	Section 15.03.	  	Reliance by Collateral Agent, Custodial Agent and Securities Intermediary	  	85
		 	Section 15.04.	  	Certain Rights	  	85
		 	Section 15.05.	  	Merger, Conversion, Consolidation or Succession to Business	  	85
		 	Section 15.06.	  	Rights in Other Capacities	  	86
		 	Section 15.07.	  	Non-reliance on Collateral Agent, the Custodial Agent and Securities Intermediary	  	86
		 	Section 15.08.	  	Compensation and Indemnity	  	86
		 	Section 15.09.	  	Failure to Act	  	87
		 	Section 15.10.	  	Resignation and Removal of Collateral Agent, the Custodial Agent and the Securities Intermediary	  	88
		 	Section 15.11.	  	Right to Appoint Agent or Advisor	  	89
		 	Section 15.12.	  	Survival	  	89
		 	Section 15.13.	  	Exculpation	  	89
		 	Section 15.14.	  	Expenses, Etc.	  	89
		
	 ARTICLE 16 MISCELLANEOUS
	  	90
		 	Section 16.01.	  	Security Interest Absolute	  	90
		 	Section 16.02.	  	Notice of Termination Event	  	90

  

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 PURCHASE CONTRACT AND PLEDGE AGREEMENT, dated as of April 25, 2007, among BANKUNITED FINANCIAL
CORPORATION, a Florida corporation (the “Company”), THE BANK OF NEW YORK, a New York banking corporation, acting as purchase contract agent for, and for purposes of the Pledge created hereby as attorney-in-fact of, the Holders from
time to time of the Units (in such capacities, together with its successors and assigns in such capacities, the “Purchase Contract Agent”), The Bank of New York, as collateral agent hereunder for the benefit of the Company (in such
capacity, together with its successors in such capacity, the “Collateral Agent”), as custodial agent (in such capacity, together with its successors in such capacity, the “Custodial Agent”), and as securities
intermediary (as defined in Section 8-102(a)(14) of the UCC) with respect to the Collateral Account (in such capacity, together with its successors in such capacity, the “Securities Intermediary”). 
 RECITALS 
 WHEREAS, the Company has
duly authorized the execution and delivery of this Agreement and the Certificates evidencing the Units; 
 WHEREAS, all things necessary to
make the Purchase Contracts, when the Certificates are executed by the Company and authenticated, executed on behalf of the Holders and delivered by the Purchase Contract Agent, as provided in this Agreement, the valid obligations of the Company,
and to constitute these presents a valid agreement of the Company, in accordance with its terms, have been done; 
 WHEREAS, pursuant to the
terms of this Agreement and the Purchase Contracts, the Holders of the Units have irrevocably authorized the Purchase Contract Agent, as attorney-in-fact of such Holders, among other things, to execute and deliver this Agreement on behalf of such
Holders and to grant the Pledge provided herein of the Collateral to secure the Obligations. 
 NOW, THEREFORE, the parties hereto agree as
follows: 
 ARTICLE 1 
 DEFINITIONS
AND OTHER PROVISIONS OF GENERAL APPLICATION 
 Section 1.01. Definitions. For all purposes of this Agreement, except as otherwise
expressly provided or unless the context otherwise requires: 
 (a) the terms defined in this Article have the meanings assigned to them in
this Article and include the plural as well as the singular, and nouns and pronouns of the masculine gender include the feminine and neuter genders; 
 (b) all accounting terms not otherwise defined herein have the meanings assigned to them in accordance with generally accepted accounting principles in the United States; 
 (c) the words “herein,” “hereof” and “hereunder” and other words of similar import refer to this Agreement as a whole and
not to any particular Article, Section, Exhibit or other subdivision; 

 (d) the following terms which are defined in the UCC shall have the meanings set forth therein:
“certificated security,” “control,” “financial asset,” “entitlement order,” “securities account” and “security entitlement”; and 
 (e) the following terms have the meanings given to them in this Section 1.01(e): 
 “Act” has the meaning, with respect to any Holder, set forth in Section 1.04. 
 “Adjusted Applicable Market Value” has the meaning set forth in Section 5.01(a). 
 “Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under direct or
indirect common control with such specified Person. For the purposes of this definition, “control” when used with respect to any specified Person means the power to direct the management and policies of such Person, directly or
indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 
 “Agreement” means this instrument as originally executed or as it may from time to time be supplemented or amended by one or more
agreements supplemental hereto entered into pursuant to the applicable provisions hereof. 
 “Applicable Market Value” has
the meaning set forth in Section 5.01(a). 
 “Applicants” has the meaning set forth in Section 7.12(b).

 “Anti-Dilution Factor” has the meaning set forth in Section 5.01(a). 
 “Bankruptcy Code” means Title 11 of the United States Code, or any other law of the United States that from time to time provides a
uniform system of bankruptcy laws. 
 “Beneficial Owner” means, with respect to a Book-Entry Interest, a Person who is the
beneficial owner of such Book-Entry Interest as reflected on the books of the Depositary or on the books of a Person maintaining an account with such Depositary (directly as a Depositary Participant or as an indirect participant, in each case in
accordance with the rules of such Depositary). 
 “Board of Directors” means the board of directors of the Company or a duly
authorized committee of that board. 
 “Board Resolution” means one or more resolutions of the Board of Directors, a copy of
which has been certified by the Secretary or an Assistant Secretary of the Company, to have been duly adopted by the Board of Directors and to be in full force and effect on the date of such certification and delivered to the Purchase Contract
Agent. 
 “Book-Entry Interest” means a beneficial interest in a Global Certificate, registered in the name of a Depositary
or a nominee thereof, ownership and transfers of which shall be maintained and made through book entries by such Depositary as described in Section 3.06. 
  

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 “Business Day” or “business day” means any day other than a Saturday or
Sunday or any other day on which banking institutions and trust companies in The City of New York, New York are permitted or required by applicable law to remain closed or a day on which the Indenture Trustee or the Collateral Agent is closed for
business; provided that for purposes of the second paragraph of Section 1.12 only, the term “Business Day” shall also be deemed to exclude any day on which DTC is closed. 
 “Cash” means any coin or currency of the United States as at the time shall be legal tender for payment of public and private debts.

 “Cash Consideration” has the meaning set forth in Section 5.02(iv). 
 “Cash Merger” has the meaning set forth in Section 5.04(b)(ii). 
 “Cash Settlement” has the meaning set forth in Section 5.02(b)(i). 
 “Certificate” means a Corporate HiMEDS Units Certificate or a Treasury HiMEDS Units Certificate. 
 “Closing Price” has the meaning set forth in Section 5.01(a). 
 “Code” means the Internal Revenue Code of 1986, as amended. 
 “Collateral” means the collective reference to: 
 (i) the Collateral Account and all investment property and other financial assets from time to time credited to the Collateral Account and all security entitlements with respect thereto, including, without limitation,
(A) the Senior Notes and security entitlements relating thereto that are a component of the Corporate HiMEDS Units from time to time, (B) any Treasury Securities and security entitlements relating thereto Transferred to the Securities
Intermediary from time to time in connection with the creation of Treasury HiMEDS Units in accordance with Section 3.13 hereof and (C) payments made by Holders pursuant to Section 5.02 hereof; 
 (ii) all Proceeds of any of the foregoing (whether such Proceeds arise before or after the commencement of any proceeding under any applicable
bankruptcy, insolvency or other similar law, by or against the pledgor or with respect to the pledgor); and 
 (iii) all powers and rights
now owned or hereafter acquired under or with respect to the Collateral. 
 “Collateral Account” means the securities
account of The Bank of New York, as Collateral Agent, maintained on the books of the Securities Intermediary and designated “The Bank of New York, as Collateral Agent of BankUnited Financial Corporation, as pledgee of The Bank of New York, as
the Purchase Contract Agent on behalf of and as attorney-in-fact for the Holders.” 
 “Collateral Agent” means the
Person named as “Collateral Agent” in the first paragraph of this Agreement until a successor Collateral Agent shall have become such pursuant to this Agreement, and thereafter “Collateral Agent” shall mean the Person who is then
the Collateral Agent hereunder. 
  

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 “Collateral Substitution” means (i) with respect to a Corporate HiMEDS Unit, the
substitution of the Pledged Senior Note included in such Corporate HiMEDS Unit with Treasury Securities in an aggregate principal amount at maturity equal to the aggregate principal amount of such Pledged Senior Note, or (ii) with respect to a
Treasury HiMEDS Unit, the substitution of the Pledged Treasury Securities included in such Treasury HiMEDS Unit with Senior Notes in an aggregate principal amount equal to the aggregate principal amount at stated maturity of the Pledged Treasury
Securities. 
 “Common Stock” means the class A common stock, par value $0.01 per share, of the Company or, subject to
Section 5.04, shares of any class or classes resulting from any reclassification or reclassifications thereof and which have no preference in respect of dividends or of amounts payable in the event of any voluntary or involuntary liquidation,
dissolution or winding up of the Company and which are not subject to redemption by the Company; provided that if at any time there shall be more than one such resulting class, the shares of each such class then so issuable on exchange shall be
substantially in the proportion which the total number of shares of such class resulting from all such reclassifications bears to the total number of shares of all such classes resulting from all such reclassifications. 
 “Company” means the Person named as the “Company” in the first paragraph of this instrument until a successor shall have
become such pursuant to the applicable provision of this Agreement, and thereafter “Company” shall mean such successor. 
 “Constituent Person” has the meaning set forth in Section 5.04(b). 
 “Contract Adjustment
Payments” means the payments payable by the Company on the Payment Dates in respect of each Purchase Contract, at a rate per year of 0.38% of the Stated Amount per Purchase Contract. 
 “Corporate Trust Office” means the office of the Purchase Contract Agent at which, at any particular time, its corporate trust business
shall be principally administered, which office at the date hereof is located at 101 Barclay Street—8W, New York, NY 10286, Attention: Corporate Trust Administration. 
 “Corporate HiMEDS Unit” means a HiMEDS Unit, initially issued in substantially the form set forth as Exhibit A hereto in the Stated
Amount of $50, which represents (i) beneficial ownership by the Holder of a 1/20, or 5.00%, undivided beneficial ownership interest in a Senior Note with a principal amount of $1,000, and (ii) the rights and obligations of the Company and
the Holder under one Purchase Contract. 
 “Corporate HiMEDS Units Certificate” means a certificate evidencing the rights
and obligations of a Holder in respect of the number of Corporate HiMEDS Units specified on such certificate. 
 “Current Market
Price” per share of the Common Stock or any other security means (a) on any day the average of the Closing Prices of the Common Stock or such other security for the 20 consecutive Trading Days preceding the earlier of the day preceding

  

 4 

 
the day in question and the day before the “ex date” with respect to the issuance or distribution requiring computation, (b) in the case of
any Spin-Off that is effected simultaneously with an Initial Public Offering of the securities being distributed in the Spin-Off, the Closing Price of the Common Stock or such other security on the Trading Day on which the initial public offering
price of the securities being distributed in the Spin-Off is determined, and (c) in the case of any other Spin-Off, the average of the Closing Prices of the Common Stock or such other security over the first 10 Trading Days after the effective
date of such Spin-Off. For purposes of this paragraph, the term “ex date,” when used with respect to any issuance or distribution, shall mean the first date on which the Common Stock or such other security trades in a regular way on the
NYSE or other principal U.S. national or regional securities exchange or quotation system on which the Common Stock or such other security is listed or quoted at such time, without the right to receive such issuance or distribution. 
 “Custodial Agent” means the Person named as Custodial Agent in the first Paragraph of this Agreement until a successor Custodial Agent
shall have become such pursuant to the applicable provisions of this Agreement, and thereafter “Custodial Agent” shall mean the Person who is then the Custodial Agent hereunder. 
 “Deferred Contract Adjustment Payments” has the meaning set forth in Section 5.11. 
 “Depositary” means a clearing agency registered under Section 17A of the Exchange Act that is designated to act as Depositary for
the HiMEDS Units as contemplated by Sections 3.06 and 3.08. 
 “Depositary Participant” means a broker, dealer, bank, other
financial institution or other Person for whom from time to time the Depositary effects book entry transfers and pledges of securities deposited with the Depositary. 
 “DTC” means The Depository Trust Company. 
 “Early Settlement” has the
meaning set forth in Section 5.07(a). 
 “Early Settlement Amount” has the meaning set forth in Section 5.07(b).

 “Early Settlement Date” has the meaning set forth in Section 5.07(b). 
 “Effective Date” has the meaning set forth in Section 5.04(b)(iii). 
 “ERISA” means the Employee Retirement Income Security Act of 1974, as amended. 
 “Exchange Act” means the Securities Exchange Act of 1934 and any statute successor thereto, in each case as amended from time to time,
and the rules and regulations promulgated thereunder. 
 “Exchange Property Unit” has the meaning set forth in
Section 5.04(b). 
 “Expiration Date” has the meaning set forth in Section 1.04(e). 
  

 5 

 “Expiration Time” has the meaning set forth in Section 5.04(a)(vi). 
 “Fair Market Value” means (a) in the case of any Spin-Off that is effected simultaneously with an Initial Public Offering of the
securities being distributed in the Spin-Off, the initial public offering price of those securities, and (b) in the case of any other Spin-Off, the average of the Closing Prices of the securities being distributed in the Spin-Off over the first
10 Trading Days after the effective date of such Spin-Off. 
 “Global Certificate” means a Certificate that evidences all or
part of the HiMEDS Units and is registered in the name of the Depositary or a nominee thereof. 
 “High Settlement Rate” has
the meaning set forth in Section 5.01(a). 
 “Holder” means, with respect to a HiMEDS Unit, the Person in whose name
the HiMEDS Unit evidenced by a Certificate is registered in the Security Register; provided, however, that solely for the purpose of determining whether the Holders of the requisite number of HiMEDS Units have voted on any matter (and not for
any other purpose hereunder), if the HiMEDS Unit remains in the form of one or more Global Certificates and if the Depositary that is the registered holder of such Global Certificate has sent an omnibus proxy assigning voting rights to the
Depositary Participants to whose accounts the HiMEDS Units are credited on the record date, the term “Holder” shall mean such Depositary Participant acting at the direction of the Beneficial Owners. 
 “Indemnitees” has the meaning set forth in Section 7.07(c). 
 “Indemnified Parties” has the meaning set forth in Section 15.08(b). 
 “Indenture” means the Indenture, dated as of April 18, 2007, between the Company and the Indenture Trustee (including any
provisions of the TIA that are deemed incorporated therein), as heretofore amended and supplemented and as amended and supplemented by the First Supplemental Indenture pursuant to which the Senior Notes will be issued. 
 “Indenture Trustee” means The Bank of New York, as trustee under the Indenture, or any successor thereto. 
 “Initial Public Offering” means the first time securities of the same class or type as the securities being distributed in the Spin-Off
are offered to the public for cash. 
 “Issuer Order” or “Issuer Request” means a written order or request
signed in the name of the Company by (i) either its Chief Executive Officer, its President or one of its Vice Presidents, and (ii) either its Corporate Secretary or one of its Assistant Corporate Secretaries or its Treasurer or one of its
Assistant Treasurers, and delivered to the Purchase Contract Agent. 
 “Last Failed Marketing” has the meaning set forth in
Section 5.02. 
 “Low Settlement Rate” has the meaning set forth in Section 5.01(a). 
 “Make-Whole Share Amount” has the meaning set forth in Section 5.04(b)(ii). 
  

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 “Merger Early Settlement” has the meaning set forth in Section 5.04(b)(ii).

 “Merger Early Settlement Date” has the meaning set forth in Section 5.04(b)(ii). 
 “Minimum Settlement Rate” means1.5263, subject to adjustment as contemplated by Section 5.04(a). 
 “NASDAQ” means the NASDAQ Stock Market. 
 “NYSE” has the meaning set forth in Section 5.01(a). 
 “Obligations”
means, with respect to each Holder, all obligations and liabilities of such Holder under such Holder’s Purchase Contract and this Agreement or any other document made, delivered or given in connection herewith or therewith, in each case whether
on account of principal, interest (including, without limitation, interest accruing before and after the filing of any petition in bankruptcy, or the commencement of any insolvency, reorganization or like proceeding, relating to such Holder, whether
or not a claim for post-filing or post-petition interest is allowed in such proceeding), fees, indemnities, costs, expenses or otherwise (including, without limitation, all fees and disbursements of counsel to the Company or the Collateral Agent or
the Securities Intermediary that are required to be paid by the Holder pursuant to the terms of any of the foregoing agreements). 
 “Observation Period” means the 20 consecutive Trading Days ending on the third Trading Day immediately preceding the Purchase Contract Settlement Date. 
 “Officers’ Certificate” means a certificate signed by (i) either the Company’s Chief Executive Officer, its
President or one of its Vice Presidents, and (ii) either the Company’s Corporate Secretary or one of its Assistant Corporate Secretaries or its Treasurer or one of its Assistant Treasurers, and delivered to the Purchase Contract Agent. Any
Officers’ Certificate delivered with respect to compliance with a condition or covenant provided for in this Agreement (other than the Officers’ Certificate provided for in Section 10.05) shall include: 
 (i) a statement that each officer signing the Officers’ Certificate has read the covenant or condition and the definitions relating thereto;

 (ii) a brief statement of the nature and scope of the examination or investigation undertaken by each officer in rendering the
Officers’ Certificate; 
 (iii) a statement that, in the opinion of each such officer, each such officer has made such examination or
investigation as is necessary to enable such officer to express an informed opinion as to whether or not such covenant or condition has been complied with; and 
 (iv) a statement as to whether, in the opinion of each such officer, such condition or covenant has been complied with. 
 “Opinion of Counsel” means a written opinion of counsel, who may be counsel to the Company (and who may be an employee of the Company), and who shall be reasonably acceptable to the Purchase Contract
Agent. An opinion of counsel may rely on certificates as to matters of fact. 
  

 7 

 “Outstanding HiMEDS Units” means, with respect to any HiMEDS Unit and as of the date of
determination, all HiMEDS Units evidenced by Certificates theretofore authenticated, executed and delivered under this Agreement, except: 
 (i) if a Termination Event has occurred, (x) Corporate HiMEDS Units for which the underlying Senior Notes have been theretofore deposited with the Purchase Contract Agent in trust for the Holders of such Corporate HiMEDS Units and
(y) Treasury HiMEDS Units for which Treasury Securities have been deposited with the Purchase Contract Agent in trust for the Holders of such Treasury HiMEDS Units; 
 (ii) HiMEDS Units evidenced by Certificates theretofore cancelled by the Purchase Contract Agent or delivered to the Purchase Contract Agent for cancellation or deemed cancelled pursuant to the provisions of this
Agreement; and 
 (iii) HiMEDS Units evidenced by Certificates in exchange for or in lieu of which other Certificates have been
authenticated, executed on behalf of the Holder and delivered pursuant to this Agreement, other than any such Certificate in respect of which there shall have been presented to the Purchase Contract Agent proof satisfactory to it that such
Certificate is held by a protected purchaser in whose hands the HiMEDS Units evidenced by such Certificate are valid obligations of the Company; 
 provided, however, that in determining whether the Holders of the requisite number of the HiMEDS Units have given any request, demand, authorization, direction, notice, consent or waiver hereunder, HiMEDS Units owned by the
Company or any Affiliate of the Company shall be disregarded and deemed not to be Outstanding HiMEDS Units, except that, in determining whether the Purchase Contract Agent shall be authorized and protected in relying upon any such request, demand,
authorization, direction, notice, consent or waiver, only HiMEDS Units that a Responsible Officer of the Purchase Contract Agent actually knows to be so owned shall be so disregarded. HiMEDS Units so owned that have been pledged in good faith may be
regarded as Outstanding HiMEDS Units if the pledgee establishes to the satisfaction of the Purchase Contract Agent the pledgee’s right so to act with respect to such HiMEDS Units and that the pledgee is not the Company or any Affiliate of the
Company. 
 “Payment Date” means each February 17, May 17, August 17 and November 17 of each
year, commencing August 17, 2007. 
 “Person” means a legal person, including any individual, corporation, estate,
partnership, joint venture, association, joint-stock company, limited liability company, trust, unincorporated organization or government or any agency or political subdivision thereof or any other entity of whatever nature. 
 “Plan” means an “employee benefit plan” within the meaning of Section 3(3) of ERISA that is subject to Title I of ERISA,
a plan, individual retirement account or other arrangement that is subject to Section 4975 of the Code or provisions under any Similar Laws, and entities whose underlying assets are considered to include “plan assets” of any such
plan, account or arrangement. 
  

 8 

 “Pledge” means the lien and security interest in the Collateral created by this
Agreement. 
 “Pledged Securities” means the Pledged Senior Notes, the Pledged Treasury Securities, collectively.

 “Pledged Senior Notes” means Senior Notes and security entitlements with respect thereto from time to time credited to
the Collateral Account and not then released from the Pledge. 
 “Pledged Treasury Securities” means Treasury Securities and
security entitlements with respect thereto from time to time credited to the Collateral Account and not then released from the Pledge. 
 “Predecessor Certificate” means a Predecessor Corporate HiMEDS Units Certificate or a Predecessor Treasury HiMEDS Units Certificate. 
 “Predecessor Corporate HiMEDS Units Certificate” of any particular Corporate HiMEDS Units Certificate means every previous Corporate HiMEDS Units Certificate evidencing all or a portion of the rights
and obligations of the Company and the Holder under the Corporate HiMEDS Units evidenced thereby; and, for the purposes of this definition, any Corporate HiMEDS Units Certificate authenticated and delivered under Section 3.10 in exchange for or
in lieu of a mutilated, destroyed, lost or stolen Corporate HiMEDS Units Certificate shall be deemed to evidence the same rights and obligations of the Company and the Holder as the mutilated, destroyed, lost or stolen Corporate HiMEDS Units
Certificate. 
 “Predecessor Treasury HiMEDS Units Certificate” of any particular Treasury HiMEDS Units Certificate means
every previous Treasury HiMEDS Units Certificate evidencing all or a portion of the rights and obligations of the Company and the Holder under the Treasury HiMEDS Units evidenced thereby; and, for the purposes of this definition, any Treasury HiMEDS
Units Certificate authenticated and delivered under Section 3.10 in exchange for or in lieu of a mutilated, destroyed, lost or stolen Treasury HiMEDS Units Certificate shall be deemed to evidence the same rights and obligations of the Company
and the Holder as the mutilated, destroyed, lost or stolen Treasury HiMEDS Units Certificate. 
 “Pro Rata” shall mean pro
rata to each Holder according to the aggregate Stated Amount of the HiMEDS Units held by such Holder in relation to the aggregate Stated Amount of all HiMEDS Units outstanding. 
 “Proceeds” has the meaning ascribed thereto in the UCC and includes, without limitation, all interest, dividends, cash, instruments,
securities, financial assets and other property received, receivable or otherwise distributed upon the sale (including, without limitation, the Remarketing), exchange, collection or disposition of any financial assets from time to time credited to
the Collateral Account. 
  

 9 

 “Prospectus” means the prospectus relating to the delivery of shares or any securities
in connection with an Early Settlement pursuant to Section 5.07 or a Merger Early Settlement of Purchase Contracts pursuant to Section 5.04(b)(ii), in the form in which first filed, or transmitted for filing, with the Securities and
Exchange Commission after the effective date of the Registration Statement pursuant to Rule 424(b) under the Securities Act, including the documents incorporated by reference therein as of the date of such Prospectus. 
 “Purchase Contract” means, with respect to any HiMEDS Unit, the contract forming a part of such HiMEDS Unit and obligating the Company
to (i) sell, and the Holder of such HiMEDS Unit to purchase, not later than the Purchase Contract Settlement Date, for $50 in cash, a number of shares of Common Stock equal to the applicable Settlement Rate, and (ii) pay the Holder thereof
Contract Adjustment Payments, in each case on the terms and subject to the conditions set forth in Article 5 hereof. 
 “Purchase
Contract Agent” means the Person named as the “Purchase Contract Agent” in the first paragraph of this Agreement until a successor Purchase Contract Agent shall have become such pursuant to the applicable provisions of this
Agreement, and thereafter “Purchase Contract Agent” shall mean such Person or any subsequent successor who is appointed pursuant to this Agreement. 
 “Purchase Contract Settlement Date” means May 17, 2010. 
 “Purchase Contract
Settlement Fund” has the meaning set forth in Section 5.03. 
 “Purchased Shares” has the meaning set forth in
Section 5.04(a)(vi). 
 “Purchase Price” has the meaning set forth in Section 5.01(a). 
 “Put Right” has the meaning set forth in Section 5.03 of the Supplemental Indenture. 
 “Record Date” for any distribution and any Contract Adjustment Payment and any Deferred Contract Adjustment Payment payable on any
Payment Date means, as to any Global Certificate or any other Certificate, the first business day of the calendar month in which the relevant Payment Date falls; provided that the Company may, at its option, select any other day as the Record
Date for any Payment Date so long as (i) such Record Date selected is more than one Business Day but less than sixty Business Days prior to such Payment Date and (ii) at least ten Business Days prior to the old Record Date and the new
Record Date for such Payment Date, the Company notifies the Purchase Contract Agent in writing of the new Record Date and instructs the Purchase Contract Agent to notify the Holders of such Record Date. 
 “Reference Dividend” has the meaning set forth in Section 5.04(a)(v). 
 “Reference Price” has the meaning set forth in Section 5.01(a). 
 “Registration Statement” means a registration statement under the Securities Act prepared by the Company covering, inter alia,
the delivery by the Company of any securities in connection with an Early Settlement on the Early Settlement Date or a Merger Early Settlement of Purchase Contracts on the Merger Early Settlement Date under Section 5.04(b)(ii), including all
exhibits thereto and the documents incorporated by reference in the prospectus contained in such registration statement, and any post-effective amendments thereto. 
  

 10 

 “Remarketing Agent” has the meaning set forth in Section 5.02(c). 
 “Remarketing Agreement” means the Remarketing Agreement to be entered into by and among the Company, the Remarketing Agent and the
Purchase Contract Agent. 
 “Remarketing Date” means the ninth Business Day before the Purchase Contract Settlement Date,
which is expected to be May 4, 2010. 
 “Remarketing Fee” has the meaning set forth in Section 5.02(c).

 “Remarketing Notice” has the meaning set forth in Section 5.02(c). 
 “Remarketing Period” means the seven Business Day period beginning on the Remarketing Date and ending on the third Business Day
preceding the Purchase Contract Settlement Date. 
 “Remarketing Rate” means the annual percentage rate at which each Note
will bear interest on and following the Reset Date. 
 “Remarketing Value” means, with respect to any Senior Note, the
principal amount of such Senior Note. 
 “Reorganization Event” means (i) any consolidation or merger of the Company
with or into another Person or of another Person with or into the Company; or (ii) any sale, transfer, lease or conveyance to another Person of the property of the Company as an entirety or substantially as an entirety; (iii) any
statutory share exchange of the Company with another Person (other than in connection with a merger or acquisition); or (iv) any liquidation, dissolution or termination of the Company (other than as a result of or after the occurrence of a
Termination Event). 
 “Reset Date” means the date following the Remarketing Date or a Subsequent Remarketing Date, as
applicable, on which the trades in a successful remarketing of the Senior Notes, pursuant to the provisions of Section 5.4, settle. Notwithstanding whether a successful remarketing occurs on the Remarketing Date or on a Subsequent Remarketing
Date, the settlement date for such remarketing, if successful, shall be on the Purchase Contract Settlement Date. 
 “Reset
Rate” has the meaning set forth in Section 1.02 of the Supplemental Indenture. 
 “Responsible Officer” means,
when used with respect to the Purchase Contract Agent, any officer of the Purchase Contract Agent within the Corporate Trust Administration (or any successor unit, department or division of the Purchase Contract Agent) located at the Corporate Trust
Office of the Purchase Contract Agent who has direct responsibility for the administration of the Agreement and, for the purposes of Section 7.01(b)(ii), also means, with respect to a particular corporate trust matter, any other officer, trust
officer or person performing similar functions to whom such matter is referred because of his or her knowledge of and familiarity of the particular subject. 
  

 11 

 “Rights” has the meaning set forth in Section 5.04(a)(xi). 
 “Securities Act” means the Securities Act of 1933 and any statute successor thereto, in each case as amended from time to time, and the
rules and regulations promulgated thereunder. 
 “Securities Intermediary” means the Person named as Securities Intermediary
in the first Paragraph of this Agreement until a successor Securities Intermediary shall have become such pursuant to the applicable provisions of this Agreement, and thereafter “Securities Intermediary” shall mean such successor or any
subsequent successor. 
 “Security Register” and “Security Registrar” have the respective meanings set
forth in Section 3.05. 
 “Senior Indebtedness” means indebtedness of any kind of the Company unless the instrument
under which such indebtedness is incurred expressly provides that it is on a parity in right of payment with or subordinate in right of payment to the Contract Adjustment Payments. 
 “Senior Notes” means the series of notes designated the Senior Notes initially due May 17, 2012 to be issued by the Company under
the Indenture. 
 “Separate Senior Notes” means Senior Notes that are not components of Corporate HiMEDS Units. 

“Settlement Date” means, as applicable, the Purchase Contract Settlement Date, the Early Settlement Date or the Merger Early
Settlement Date. 
 “Settlement Rate” has the meaning set forth in Section 5.01(a). 
 “Similar Law” means provisions under any federal, state, local, non-U.S. or other laws or regulations that are similar to the fiduciary
responsibility provisions of Title I of ERISA or the prohibited transaction provisions of Title I of ERISA or Section 4975 of the Code. 
 “Spin-Off” means payment of a dividend or distribution on the Common Stock of shares of capital stock of any class or series, or similar equity interests, of or relating to a subsidiary or other business unit of the
Company. 
 “Stated Amount” means $50. 
 “Stock Price” has the meaning set forth in Section 5.04(b)(iii). 
 “Subsequent
Remarketing Date” has the meaning set forth in Section 5.02(c)(i). 
 “Supplemental Indenture” means the
Supplemental Indenture, dated as of the date hereof, between the Company and the Indenture Trustee, pursuant to which the Senior Notes are issued. 
  

 12 

 “Termination Date” means the date, if any, on which a Termination Event occurs.

 “Termination Event” means the occurrence of any of the following events: 
 (i) at any time on or prior to the Purchase Contract Settlement Date, a judgment, decree or court order shall have been entered granting relief under the
Bankruptcy Code, adjudicating the Company to be insolvent, or approving as properly filed a petition seeking reorganization or liquidation of the Company or any other similar applicable Federal or state law and if such judgment, decree or order
shall have been entered more than 60 days prior to the Purchase Contract Settlement Date, such decree or order shall have continued undischarged and unstayed for a period of 60 days; 
 (ii) at any time on or prior to the Purchase Contract Settlement Date, a judgment, decree or court order for the appointment of a receiver or liquidator
or trustee or assignee in bankruptcy or insolvency of the Company or of its property, or for the termination or liquidation of its affairs, shall have been entered and if such judgment, decree or order shall have been entered more than 60 days prior
to the Purchase Contract Settlement Date, such judgment, decree or order shall have continued undischarged and unstayed for a period of 60 days; or 
 (iii) at any time on or prior to the Purchase Contract Settlement Date, the Company shall file a petition for relief under the Bankruptcy Code, or shall consent to the filing of a bankruptcy proceeding against it, or shall file a petition
or answer or consent seeking reorganization or liquidation under the Bankruptcy Code or any other similar applicable Federal or State law, or shall consent to the filing of any such petition, or shall consent to the appointment of a receiver or
liquidator or trustee or assignee in bankruptcy or insolvency of it or of its property, or shall make an assignment for the benefit of creditors, or shall admit in writing its inability to pay its debts generally as they become due. 
 “Threshold Appreciation Price” has the meaning set forth in Section 5.01(a). 
 “TIA” means the Trust Indenture Act of 1939, as amended from time to time, or any successor legislation. 
 “TRADES” means the Treasury/Reserve Automated Debt Entry System maintained by the Federal Reserve Bank of New York pursuant to the
TRADES Regulations. 
 “TRADES Regulations” means the regulations of the United States Department of the Treasury, published
at 31 C.F.R. Part 357, as amended from time to time. Unless otherwise defined herein, all terms defined in the TRADES Regulations are used herein as therein defined. 
 “Trading Day” has the meaning set forth in Section 5.01(a). 
 “Transfer” means (i) in the case of certificated securities in registered form, delivery as provided in Section 8-301(a) of the UCC, indorsed to the transferee or in blank by an effective endorsement; (ii) in
the case of Treasury Securities, registration of the transferee as the owner of such Treasury Securities on TRADES; and (iii) in the case of security entitlements, including, without limitation, security entitlements with respect to Treasury
Securities, a securities intermediary indicating by book entry that such security entitlement has been credited to the transferee’s securities account. 
  

 13 

 “Treasury Securities” means zero-coupon U.S. treasury securities that mature on
May 15, 2010 (CUSIP No. 912820LR6). 
 “Treasury HiMEDS Unit” means a HiMEDS Unit, initially issued in
substantially the form set forth as Exhibit B hereto in a Stated Amount of $50, which represents (i) a 1/20, or 5.00%, undivided beneficial ownership interest in a Treasury Security having a principal amount at maturity equal to $1,000, and
(ii) the rights and obligations of the Company and the Holder under one Purchase Contract. 
 “Treasury HiMEDS Units
Certificate” means a certificate evidencing the rights and obligations of a Holder in respect of the number of Treasury HiMEDS Units specified on such certificate. 
 “UCC” means the Uniform Commercial Code as in effect in the State of New York from time to time. 
 “Underwriters” means the underwriters identified in Schedule 1 to the Underwriting Agreement. 
 “Underwriting Agreement” means the Underwriting Agreement, dated as of April 19, 2007, among the Company and the Underwriters,
relating to the offer and sale by the Company of Corporate HiMEDS Units. 
 “HiMEDS Unit” means a Corporate HiMEDS Unit or a
Treasury HiMEDS Unit, as the case may be. 
 “Value” means, with respect to any item of Collateral on any date, as to
(1) Cash, the amount thereof and (2) Treasury Securities or Senior Notes, the aggregate principal amount thereof at maturity. 
 “Vice President” means any vice president, whether or not designated by a number or a word or words added before or after the title “vice president.” 
 Section 1.02. Compliance Certificates and Opinions. Except as otherwise expressly provided by this Agreement, upon any application or
request by the Company to the Purchase Contract Agent to take any action in accordance with any provision of this Agreement, the Company shall furnish to the Purchase Contract Agent an Officers’ Certificate stating that all conditions
precedent, if any, provided for in this Agreement relating to the proposed action have been complied with and, if requested by the Purchase Contract Agent, an Opinion of Counsel stating that, in the opinion of such counsel, all such conditions
precedent, if any, have been complied with, except that in the case of any such application or request as to which the furnishing of such documents is specifically required by any provision of this Agreement relating to such particular application
or request, no additional certificate or opinion need be furnished. 
  

 14 

 Every certificate or opinion with respect to compliance with a condition or covenant provided for in this
Agreement (other than the Officers’ Certificate provided for in Section 10.05) shall include: 
 (i) a statement that each
individual signing such certificate or opinion has read such covenant or condition and the definitions herein relating thereto; 
 (ii) a
brief statement as to the nature and scope of the examination or investigation upon which the statements or opinions contained in such certificate or opinion are based; 
 (iii) a statement that, in the opinion of each such individual, he or she has made such examination or investigation as is necessary to enable such individual to express an informed opinion as to whether or not such
covenant or condition has been complied with; and 
 (iv) a statement as to whether, in the opinion of each such individual, such condition
or covenant has been complied with. 
 Section 1.03. Form of Documents Delivered to Purchase Contract Agent. In any case
where several matters are required to be certified by, or covered by an opinion of, any specified Person, it is not necessary that all such matters be certified by, or covered by the opinion of, only one such Person, or that they be so certified or
covered by only one document, but one such Person may certify or give an opinion with respect to some matters and one or more other such Persons as to other matters, and any such Person may certify or give an opinion as to such matters in one or
several documents. Any certificate or opinion of an officer of the Company may be based, insofar as it relates to legal matters, upon a certificate or opinion of, or representations by, counsel, unless such officer knows, or in the exercise of
reasonable care should know, that the certificate or opinion or representations with respect to the matters upon which its certificate or opinion is based are erroneous. Any such certificate or Opinion of Counsel may be based, insofar as it
relates to factual matters, upon a certificate or opinion of, or representations by, an officer or officers of the Company unless such counsel knows, or in the exercise of reasonable care should know, that the certificate or opinion or
representations with respect to such matters are erroneous. 
 Where any Person is required to make, give or execute two or more
applications, requests, consents, certificates, statements, opinions or other instruments under this Agreement, they may, but need not, be consolidated and form one instrument. 
 Section 1.04. Acts of Holders; Record Dates. (a) Any request, demand, authorization, direction, notice, consent, waiver or other
action provided by this Agreement to be given or taken by Holders may be embodied in and evidenced by one or more instruments of substantially similar tenor signed by such Holders in person or by an agent duly appointed in writing; and, except as
herein otherwise expressly provided, such action shall become effective when such instrument or instruments are delivered to the Purchase Contract Agent and, where it is hereby expressly required, to the Company. Such instrument or instruments
(and the action embodied therein and evidenced thereby) are herein sometimes referred to as the “Act” of the Holders signing such instrument or instruments. Reasonable proof of execution of any such instrument or of a writing
appointing any such agent shall be sufficient for any purpose of this Agreement and (subject to Section 7.01) conclusive in favor of the Purchase Contract Agent and the Company, if made in the manner provided in this Section. 
  

 15 

 (b) The fact and date of the execution by any Person of any such instrument or writing may be proved in
any manner which the Purchase Contract Agent deems sufficient. 
 (c) The ownership of HiMEDS Units shall be proved by the Security Register.

 (d) Any request, demand, authorization, direction, notice, consent, waiver or other Act of the Holder of any HiMEDS Unit shall bind every
future Holder of the same HiMEDS Unit and the Holder of every Certificate evidencing such HiMEDS Unit issued upon the registration of transfer thereof or in exchange therefor or in lieu thereof in respect of anything done, omitted or suffered to be
done by the Purchase Contract Agent or the Company in reliance thereon, whether or not notation of such action is made upon such Certificate. 
 (e) The Company may set any date as a record date for the purpose of determining the Holders of Outstanding HiMEDS Units entitled to give, make or take any request, demand, authorization, direction, notice, consent, waiver or other action
provided or permitted by this Agreement to be given, made or taken by Holders of HiMEDS Units. If any record date is set pursuant to this paragraph, the Holders of the Outstanding Corporate HiMEDS Units and the Outstanding Treasury HiMEDS
Units, as the case may be, on such record date, and no other Holders, shall be entitled to take the relevant action with respect to the Corporate HiMEDS Units or the Treasury HiMEDS Units, as the case may be, whether or not such Holders remain
Holders after such record date; provided that no such action shall be effective hereunder unless taken prior to or on the applicable Expiration Date by Holders of the requisite number of Outstanding HiMEDS Units on such record
date. Nothing contained in this paragraph shall be construed to prevent the Company from setting a new record date for any action for which a record date has previously been set pursuant to this paragraph (whereupon the record date previously
set shall automatically and with no action by any Person be cancelled and be of no effect), and nothing contained in this paragraph shall be construed to render ineffective any action taken by Holders of the requisite number of Outstanding HiMEDS
Units on the date such action is taken. Promptly after any record date is set pursuant to this paragraph, the Company, at its own expense, shall cause notice of such record date, the proposed action by Holders and the applicable Expiration Date
to be given to the Purchase Contract Agent in writing and to each Holder of HiMEDS Units in the manner set forth in Section 1.06. 
 With respect to any record date set pursuant to this Section 1.04(e), the Company may designate any date as the “Expiration Date” and from time to time may change the Expiration Date to any earlier or later day;
provided that no such change shall be effective unless notice of the proposed new Expiration Date is given to the Purchase Contract Agent in writing, and to each Holder of HiMEDS Units in the manner set forth in Section 1.06, prior to or
on the existing Expiration Date. If an Expiration Date is not designated with respect to any record date set pursuant to this Section, the Company shall be deemed to have initially designated the 180th day after such record date as the Expiration
Date with respect thereto, subject to its right to change the Expiration Date as provided in this paragraph. Notwithstanding the foregoing, no Expiration Date shall be later than the 180th day after the applicable record date. 
  

 16 

 Section 1.05. Notices. All notices, requests, consents and other communications
provided for herein (including, without limitation, any modifications of, or waivers or consents under, this Agreement) shall be given or made in writing (including, without limitation, by telecopy) delivered to the intended recipient at the
“Address for Notices” specified below its name on the signature pages hereof or, as to any party, at such other address as shall be designated by such party in a notice to the other parties. Except as otherwise provided in this
Agreement, all such communications shall be deemed to have been duly given when transmitted by telecopier or personally delivered or, in the case of a mailed notice, upon receipt, in each case given or addressed as aforesaid. 
 The Purchase Contract Agent shall send to the Indenture Trustee at the following address a copy of any notices in the form of Exhibits C, D, E or F it
sends or receives: 
 The Bank of New York 
 101 Barclay Street - 8W New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust Administration 
 Section 1.06. Notice to Holders; Waiver. 
 Where this Agreement provides for notice to Holders of any event, such notice
shall be sufficiently given (unless otherwise herein expressly provided) if in writing and mailed, first-class postage prepaid, to each Holder affected by such event, at its address as it appears in the Security Register, not later than the latest
date, and not earlier than the earliest date, prescribed for the giving of such notice. In any case where notice to Holders is given by mail, neither the failure to mail such notice, nor any defect in any notice so mailed to any particular
Holder shall affect the sufficiency of such notice with respect to other Holders. Where this Agreement provides for notice in any manner, such notice may be waived in writing by the Person entitled to receive such notice, either before or after
the event, and such waiver shall be the equivalent of such notice. Waivers of notice by Holders shall be filed with the Purchase Contract Agent, but such filing shall not be a condition precedent to the validity of any action taken in reliance
upon such waiver. 
 In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to
give such notice by mail, then such notification as shall be made with the approval of the Purchase Contract Agent shall constitute a sufficient notification for every purpose hereunder. 
 Section 1.07. Effect of Headings and Table of Contents. The Article and Section headings herein and the Table of Contents are for
convenience only and shall not affect the construction hereof. 
 Section 1.08. Successors and Assigns. This Agreement
shall be binding upon and inure to the benefit of the respective successors and assigns of the Company, the Purchase Contract Agent, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, and the
Holders from time to time of the HiMEDS Units, by their acceptance of the same, shall be deemed to have agreed to be bound by the provisions hereof and to have ratified the agreements of, and the grant of the Pledge hereunder by, the Purchase
Contract Agent. 
  

 17 

 Section 1.09. Separability Clause. In case any provision in this Agreement or in the
HiMEDS Units shall be invalid, illegal or unenforceable, the validity, legality and enforceability of the remaining provisions hereof and thereof shall not in any way be affected or impaired thereby. 
 Section 1.10. Benefits of Agreement. Nothing contained in this Agreement or in the HiMEDS Units, express or implied, shall give
to any Person, other than the parties hereto and their successors hereunder and, to the extent provided hereby, the Holders, any benefits or any legal or equitable right, remedy or claim under this Agreement. The Holders from time to time shall be
beneficiaries of this Agreement and shall be bound by all of the terms and conditions hereof and of the HiMEDS Units evidenced by their Certificates by their acceptance of delivery of such Certificates. 
 Section 1.11. Governing Law. THIS AGREEMENT AND THE UNITS SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE
STATE OF NEW YORK. The Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Holders from time to time of the HiMEDS Units, acting through the Purchase Contract Agent as their attorney-in-fact, hereby submit to
the nonexclusive jurisdiction of the United States District Court for the Southern District of New York and of any New York state court sitting in New York City for the purposes of all legal proceedings arising out of or relating to this Agreement
or the transactions contemplated hereby. The Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Holders from time to time of the HiMEDS Units, acting through the Purchase Contract Agent as their attorney-in-fact,
irrevocably waive, to the fullest extent permitted by applicable law, any objection which they may now or hereafter have to the laying of the venue of any such proceeding brought in such a court and any claim that any such proceeding brought in such
a court has been brought in an inconvenient forum. 
 Section 1.12. Legal Holidays. In any case where any Payment Date
shall not be a Business Day (notwithstanding any other provision of this Agreement or the HiMEDS Units), Contract Adjustment Payments or other distributions shall not be paid on such date, but Contract Adjustment Payments and Deferred Contract
Adjustment Payments or such other distributions shall be paid on the next succeeding Business Day, unless such Business Day is in the next succeeding calendar year, in which case such Contract Adjustment Payments or other distributions shall be paid
on the immediately preceding Business Day, in each case with the same force and effect as if made on such scheduled Payment Date; provided that no interest shall accrue or be payable by the Company or to any Holder in respect of such payment
or distribution for the period from and after any such scheduled Payment Date. 
 In any case where the Purchase Contract Settlement Date or
any Early Settlement Date or Merger Early Settlement Date shall not be a Business Day (notwithstanding any other provision of this Agreement or the HiMEDS Units), Purchase Contracts shall not be performed and Early Settlement and Merger Early
Settlement shall not be effected on such date, but Purchase Contracts shall be 

  

 18 

 
performed or Early Settlement or Merger Early Settlement shall be effected, as applicable, on the next succeeding Business Day with the same force and effect
as if made on such Purchase Contract Settlement Date, Early Settlement Date or Merger Early Settlement Date, as applicable. 
 Section 1.13. Counterparts. This Agreement may be executed in any number of counterparts by the parties hereto on separate counterparts, each of which, when so executed and delivered, shall be deemed an original, but
all such counterparts shall together constitute one and the same instrument. 
 Section 1.14. Inspection of
Agreement. A copy of this Agreement shall be available at all reasonable times during normal business hours at the Corporate Trust Office for inspection by any Holder or Beneficial Owner. 
 Section 1.15. Appointment of Financial Institution as Agent for the Company. The Company may appoint a financial institution
(which may be the Collateral Agent) to act as its agent in performing its obligations and in accepting and enforcing performance of the obligations of the Purchase Contract Agent and the Holders, under this Agreement and the Purchase Contracts, by
giving notice of such appointment in the manner provided in Section 1.05 hereof. Any such appointment shall not relieve the Company in any way from its obligations hereunder. 
 Section 1.16. No Waiver. No failure on the part of the Company, the Purchase Contract Agent, the Collateral Agent, the Securities
Intermediary or any of their respective agents to exercise, and no course of dealing with respect to, and no delay in exercising, any right, power or remedy hereunder shall operate as a waiver thereof; nor shall any single or partial exercise by the
Company, the Collateral Agent, the Securities Intermediary or any of their respective agents of any right, power or remedy hereunder preclude any other or further exercise thereof or the exercise of any other right, power or remedy. The
remedies herein are cumulative and are not exclusive of any remedies provided by law. 
 Section 1.17. Tax
Treatment. The Company intends to treat and each Holder, by acceptance of a beneficial interest in a Corporate HiMEDS Unit, agrees to treat (1) each Corporate HiMEDS Unit as an investment unit consisting of an interest in a Senior
Note and a Purchase Contract, (2) the initial fair market value of each Senior Note as $50 and the initial fair market value of each Purchase Contract as $0 and to allocate the purchase price for each Corporate HiMEDS Unit accordingly, (3) each
Treasury HiMEDS Unit as an investment unit consisting of Treasury securities and a Purchase Contract, and (4) the Senior Notes as indebtedness for tax purposes. The Holders will be treated for all purposes as the owner of the applicable interests in
the Collateral Account, including the Senior Notes or the Treasury Securities. 
 ARTICLE 2 
 CERTIFICATE FORMS 
 Section 2.01.
Forms of Certificates Generally. The Certificates (including the form of Purchase Contract forming part of each Unit evidenced thereby) shall be in substantially the form set forth in Exhibit A hereto (in the case of Corporate
HiMEDS Units Certificates) or Exhibit B hereto (in the case of Treasury HiMEDS Units Certificates), with such letters, numbers or other marks of identification or designation and such legends or endorsements printed, lithographed or engraved thereon
as may be required by the rules of any securities exchange on which the HiMEDS Units are listed or any depositary therefor, or as may, consistently herewith, be determined by the officers of the Company executing such Certificates, as evidenced by
their execution of the Certificates. 
  

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 The definitive Certificates shall be produced in any manner as determined by the officers of the Company
executing the HiMEDS Units evidenced by such Certificates, consistent with the provisions of this Agreement, as evidenced by their execution thereof. 
 Every Global Certificate authenticated, executed on behalf of the Holders and delivered hereunder shall bear a legend in substantially the following form: 
 “THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME
OF CEDE & CO., AS NOMINEE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION (THE “DEPOSITARY”), THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY. THIS CERTIFICATE IS EXCHANGEABLE FOR CERTIFICATES REGISTERED IN THE
NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AGREEMENT AND NO TRANSFER OF THIS CERTIFICATE (OTHER THAN A TRANSFER OF THIS CERTIFICATE AS A WHOLE BY THE DEPOSITARY TO A
NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES. 
 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REQUESTED IN THE NAME OF CEDE & CO. OR
SUCH OTHER NAME AS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), ANY TRANSFER, PLEDGE OR
OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.” 
 Section 2.02. Form of Purchase Contract Agent’s Certificate of Authentication. The form of the Purchase Contract Agent’s certificate of authentication of the HiMEDS Units shall be in
substantially the form set forth on the form of the applicable Certificates. 
 ARTICLE 3 
 THE HIMEDS UNITS 
 Section 3.01. Amount;
Form and Denominations. The aggregate number of HiMEDS Units evidenced by Certificates authenticated, executed on behalf of the Holders and delivered hereunder is limited to 3,200,000 (up to 3,680,000 if the Underwriters exercise
their over-allotment option under the Underwriting Agreement), except for Certificates authenticated, executed and delivered upon registration of transfer of, in exchange for, or in lieu of, other Certificates pursuant to Section 3.04,
Section 3.05, Section 3.10, Section 3.13, Section 3.14 or Section 8.05. 
  

 20 

 The Certificates shall be issuable only in registered form and only in denominations of a single
Corporate HiMEDS Unit or Treasury HiMEDS Unit and any integral multiple thereof. 
 Section 3.02. Rights and Obligations Evidenced by the
Certificates. Each Corporate HiMEDS Units Certificate shall evidence the number of Corporate HiMEDS Units specified therein, with each such Corporate HiMEDS Unit representing (i) the ownership by the Holder thereof of a 1/20, or
5.00%, undivided beneficial interest in $1,000 aggregate principal amount of a Senior Note, and (ii) the rights and obligations of the Holder thereof and the Company under one Purchase Contract. The Purchase Contract Agent is hereby
authorized, as attorney-in-fact for, and on behalf of, the Holder of each Corporate HiMEDS Unit, to pledge, pursuant to Article 11 hereof, the Senior Note, forming a part of such Corporate HiMEDS Unit, to the Collateral Agent for the benefit of the
Company, and to grant to the Collateral Agent, for the benefit of the Company, a security interest in the right, title and interest of such Holder in such Senior Note to secure the obligation of the Holder under each Purchase Contract to purchase
shares of Common Stock.
 Upon the formation of a Treasury HiMEDS Unit pursuant to Section 3.13, each Treasury HiMEDS Unit Certificate
shall evidence the number of Treasury HiMEDS Units specified therein, with each such Treasury HiMEDS Unit representing (i) the ownership by the Holder thereof of a 1/20, or 5.00%, undivided beneficial interest in a Treasury Security with a
principal amount equal to $1,000, subject to the Pledge of such interest by such Holder pursuant to this Agreement, and (ii) the rights and obligations of the Holder thereof and the Company under one Purchase Contract. The Purchase
Contract Agent is hereby authorized, as attorney-in-fact for, and on behalf of, the Holder of each Treasury HiMEDS Unit, to pledge, pursuant to Article 11 hereof, such Holder’s interest in the Treasury Security forming a part of such Treasury
HiMEDS Unit to the Collateral Agent, for the benefit of the Company, and to grant to the Collateral Agent, for the benefit of the Company, a security interest in the right, title and interest of such Holder in such Treasury Security to secure the
obligation of the Holder under each Purchase Contract to purchase shares of Common Stock.
 Prior to the purchase of shares of Common Stock
under each Purchase Contract, such Purchase Contracts shall not entitle the Holder of a HiMEDS Unit to any of the rights of a holder of shares of Common Stock, including, without limitation, the right to vote or receive any dividends or other
payments or to consent or to receive notice as a shareholder in respect of the meetings of shareholders or for the election of directors of the Company or for any other matter, or any other rights whatsoever as a shareholder of the Company.

 Section 3.03. Execution, Authentication, Delivery and Dating. Subject to the provisions of Section 3.13 and
Section 3.14 hereof, upon the execution and delivery of this Agreement, and at any time and from time to time thereafter, the Company may deliver Certificates executed by the Company to the Purchase Contract Agent for authentication, execution
on behalf of the Holders and delivery, together with its Issuer Order for authentication of such Certificates, and the Purchase Contract Agent in accordance with such Issuer Order shall authenticate, execute on behalf of the Holders and deliver such
Certificates. 
  

 21 

 The Certificates shall be executed on behalf of the Company by any one of its Chairman of the Board of
Directors, its Chief Executive Officer, its President, its Treasurer or one of its Vice Presidents. The signature of any of these officers on the Certificates may be manual or facsimile. 
 Certificates bearing the manual or facsimile signatures of individuals who were at any time the proper officers of the Company shall bind the Company,
notwithstanding that such individuals or any of them have ceased to hold such offices prior to the authentication and delivery of such Certificates or did not hold such offices at the date of such Certificates. 
 No Purchase Contract evidenced by a Certificate shall be valid until such Certificate has been executed on behalf of the Holder by the manual signature
of an authorized officer of the Purchase Contract Agent, as such Holder’s attorney-in-fact. Such signature by an authorized officer of the Purchase Contract Agent shall be conclusive evidence that the Holder of such Certificate has entered
into the Purchase Contract or Purchase Contracts evidenced by such Certificate. 
 Each Certificate shall be dated the date of its
authentication. 
 No Certificate shall be entitled to any benefit under this Agreement or be valid or obligatory for any purpose unless
there appears on such Certificate a certificate of authentication substantially in the form provided for herein executed by an authorized officer of the Purchase Contract Agent by manual signature, and such certificate upon any Certificate shall be
conclusive evidence, and the only evidence, that such Certificate has been duly authenticated and delivered hereunder. 
 Section 3.04.
Temporary Certificates. Pending the preparation of definitive Certificates, the Company shall execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent shall authenticate, execute on behalf of the
Holders, and deliver, in lieu of such definitive Certificates, temporary Certificates which are in substantially the form set forth in Exhibit A or Exhibit B hereto, as the case may be, with such letters, numbers or other marks of identification or
designation and such legends or endorsements printed, lithographed or engraved thereon as may be required by the rules of any securities exchange on which the Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, are listed, or as
may, consistently herewith, be determined by the officers of the Company executing such Certificates, as evidenced by their execution of the Certificates. 
 If temporary Certificates are issued, the Company will cause definitive Certificates to be prepared without unreasonable delay. After the preparation of definitive Certificates, the temporary Certificates shall
be exchangeable for definitive Certificates upon surrender of the temporary Certificates at the Corporate Trust Office, at the expense of the Company and without charge to the Holder. Upon surrender for cancellation of any one or more temporary
Certificates, the Company shall execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent shall authenticate, execute on behalf of the Holder, and deliver in 

  

 22 

 
exchange therefor, one or more definitive Certificates of like tenor and denominations and evidencing a like number of HiMEDS Units as the temporary
Certificate or Certificates so surrendered. Until so exchanged, the temporary Certificates shall in all respects evidence the same benefits and the same obligations with respect to the HiMEDS Units evidenced thereby as definitive Certificates.

 Section 3.05. Registration; Registration of Transfer and Exchange. The Purchase Contract Agent shall keep at the
Corporate Trust Office a register (the “Security Register”) in which, subject to such reasonable regulations as it may prescribe, the Purchase Contract Agent shall provide for the registration of Certificates and of transfers of
Certificates (the Purchase Contract Agent, in such capacity, the “Security Registrar”). The Security Registrar shall record separately the registration and transfer of the Certificates evidencing Corporate HiMEDS Units and
Treasury HiMEDS Units. 
 Upon surrender for registration of transfer of any Certificate at the Corporate Trust Office, the Company shall
execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent shall authenticate, execute on behalf of the designated transferee or transferees, and deliver, in the name of the designated transferee or transferees, one or more
new Certificates of any authorized denominations, like tenor, and evidencing a like number of Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be. 
 At the option of the Holder, Certificates may be exchanged for other Certificates, of any authorized denominations and evidencing a like number of Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be,
upon surrender of the Certificates to be exchanged at the Corporate Trust Office. Whenever any Certificates are so surrendered for exchange, the Company shall execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent
shall authenticate, execute on behalf of the Holder, and deliver the Certificates which the Holder making the exchange is entitled to receive. 
 All Certificates issued upon any registration of transfer or exchange of a Certificate shall evidence the ownership of the same number of Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, and be entitled to the same
benefits and subject to the same obligations under this Agreement as the Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, evidenced by the Certificate surrendered upon such registration of transfer or exchange. 
 Every Certificate presented or surrendered for registration of transfer or exchange shall (if so required by the Purchase Contract Agent) be duly
endorsed, or be accompanied by a written instrument of transfer in form satisfactory to the Company and the Purchase Contract Agent duly executed, by the Holder thereof or its attorney duly authorized in writing. 
 No service charge shall be made for any registration of transfer or exchange of a Certificate, but the Company and the Purchase Contract Agent may
require payment from the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Certificates, other than any exchanges pursuant to
Section 3.04, Section 3.06 and Section 8.05 not involving any transfer. 
  

 23 

 Notwithstanding the foregoing, the Company shall not be obligated to execute and deliver to the Purchase
Contract Agent, and the Purchase Contract Agent shall not be obligated to authenticate, execute on behalf of the Holder and deliver any Certificate in exchange for any other Certificate presented or surrendered for registration of transfer or for
exchange on or after the Business Day immediately preceding the earliest to occur of any Early Settlement Date with respect to such Certificate, any Merger Early Settlement Date with respect to such Certificate, the Purchase Contract Settlement Date
or the Termination Date. In lieu of delivery of a new Certificate, upon satisfaction of the applicable conditions specified above in this Section and receipt of appropriate registration or transfer instructions from such Holder, the Purchase
Contract Agent shall: 
 (i) if the Purchase Contract Settlement Date or an Early Settlement Date or a Merger Early Settlement
Date with respect to such other Certificate has occurred, deliver the shares of Common Stock issuable in respect of the Purchase Contracts forming a part of the HiMEDS Units evidenced by such other Certificate; or 
 (ii) if a Termination Event, Early Settlement, or Merger Early Settlement shall have occurred prior to the Purchase Contract Settlement
Date, or a Cash Settlement shall have occurred, transfer the Senior Notes, or the Treasury Securities, as the case may be, evidenced thereby, in each case subject to the applicable conditions and in accordance with the applicable provisions of
Section 3.15 and Article 5 hereof. 
 Section 3.06. Book-Entry Interests. The Certificates, on original
issuance, will be issued in the form of one or more fully registered Global Certificates, to be delivered to the Depositary or its custodian by, or on behalf of, the Company. The Company hereby designates DTC as the initial
Depositary. Such Global Certificates shall initially be registered on the Security Register in the name of Cede & Co., the nominee of the Depositary, and no Beneficial Owner will receive a definitive Certificate representing such
Beneficial Owner’s interest in such Global Certificate, except as provided in Section 3.09. The Purchase Contract Agent shall enter into an agreement with the Depositary if so requested by the Company. Unless and until
definitive, fully registered Certificates have been issued to Beneficial Owners pursuant to Section 3.09: 
 (i) the
provisions of this Section 3.06 shall be in full force and effect; 
 (ii) the Company shall be entitled to deal with the
Depositary for all purposes of this Agreement (including, without limitation, making Contract Adjustment Payments and receiving approvals, votes or consents hereunder) as the Holder of the HiMEDS Units and the sole holder of the Global Certificates
and shall have no obligation to the Beneficial Owners; provided that a Beneficial Owner may directly enforce against the Company, without any consent, proxy, waiver or involvement of the Depositary of any kind, such Beneficial Owner’s
right to receive a definitive Certificate representing the HiMEDS Units beneficially owned by such Beneficial Owner, as set forth in Section 3.09; 
 (iii) to the extent that the provisions of this Section 3.06 conflict with any other provisions of this Agreement, the provisions of this Section 3.06 shall control; and 
  

 24 

 (iv) except as set forth in the proviso of clause (ii) of this Section 3.06,
the rights of the Beneficial Owners shall be exercised only through the Depositary and shall be limited to those established by law and agreements between such Beneficial Owners and the Depositary or the Depositary Participants. The Depositary
will make book entry transfers among Depositary Participants and receive and transmit payments of Contract Adjustment Payments to such Depositary Participants. 
 Transfers of securities evidenced by Global Certificates shall be made through the facilities of the Depositary, and any cancellation of, or increase or decrease in the number of, such securities (including the creation of Treasury HiMEDS
Units and the recreation of Corporate HiMEDS Units pursuant to Section 3.13 and Section 3.14 respectively) shall be accomplished by making appropriate annotations on the Schedule of Increases and Decreases for such Global Certificate.

 Section 3.07. Notices to Holders. Whenever a notice or other communication to the Holders is required to be given
under this Agreement, the Company or the Company’s agent shall give such notices and communications to the Holders and, with respect to any HiMEDS Units registered in the name of the Depositary or the nominee of the Depositary, the Company or
the Company’s agent shall, except as set forth herein, have no obligations to the Beneficial Owners. 
 Section 3.08.
Appointment of Successor Depositary. If the Depositary elects to discontinue its services as securities depositary with respect to the HiMEDS Units, the Company may, in its sole discretion, appoint a successor Depositary with respect
to the HiMEDS Units. 
 Section 3.09. Definitive Certificates. 
 If: 
 (i) the Depositary
notifies the Company that it is unwilling or unable to continue its services as securities depositary with respect to the HiMEDS Units and no successor Depositary has been appointed pursuant to Section 3.08 within 90 days after such notice; or

 (ii) the Depositary ceases to be a “clearing agency” registered under Section 17A of the Exchange Act when
the Depositary is required to be so registered to act as the Depositary and so notifies the Company, and no successor Depositary has been appointed pursuant to Section 3.08 within 90 days after such notice; 
 (iii) to the extent permitted by the Depositary, the Company determines at any time that the HiMEDS Units shall no longer be represented
by Global Certificates and shall inform such Depositary of such determination and participants in such Depositary elect to withdraw their beneficial interests in the HiMEDS Units from such Depositary, following notification by the Depositary of
their right to do so; or 
 (iv) a Beneficial Owner requests to exchange such Beneficial Owner’s interest in the Global
Certificates for definitive Certificates in order to exercise or enforce such Beneficial Owner’s rights under the HiMEDS Units represented by such Global Certificates, 
  

 25 

 then (x) definitive Certificates shall be prepared by the Company with respect to such HiMEDS Units and delivered to
the Purchase Contract Agent and (y) upon surrender of the Global Certificates representing the HiMEDS Units by the Depositary, accompanied by registration instructions (other than in the case of clause (iv) above), the Company shall cause
definitive Certificates to be delivered to Beneficial Owners in accordance with instructions provided by the Depositary. The Company and the Purchase Contract Agent shall not be liable for any delay in delivery of such instructions and may
conclusively rely on and shall be authorized and protected in relying on, such instructions. Each definitive Certificate so delivered shall evidence HiMEDS Units of the same kind and tenor as the Global Certificate so surrendered in respect
thereof. 
 Section 3.10. Mutilated, Destroyed, Lost and Stolen Certificates. If any mutilated Certificate is
surrendered to the Purchase Contract Agent, the Company shall execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent shall authenticate, execute on behalf of the Holder, and deliver in exchange therefor, a new
Certificate, evidencing the same number of Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, and bearing a Certificate number not contemporaneously outstanding. 
 If there shall be delivered to the Company and the Purchase Contract Agent (i) evidence to their satisfaction of the destruction, loss or theft of
any Certificate, and (ii) such security or indemnity as may be required by them to hold each of them and any agent of any of them harmless, then, in the absence of notice to the Company or the Purchase Contract Agent that such Certificate has
been acquired by a protected purchaser, the Company shall execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent shall authenticate, execute on behalf of the Holder, and deliver to the Holder, in lieu of any such
destroyed, lost or stolen Certificate, a new Certificate, evidencing the same number of Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, and bearing a Certificate number not contemporaneously outstanding. 
 Notwithstanding the foregoing, the Company shall not be obligated to execute and deliver to the Purchase Contract Agent, and the Purchase Contract Agent
shall not be obligated to authenticate, execute on behalf of the Holder, and deliver to the Holder, a Certificate on or after the Business Day immediately preceding the earliest of any Early Settlement Date with respect to such lost or mutilated
Certificate, any Merger Early Settlement Date with respect to such lost or mutilated Certificate, the Purchase Contract Settlement Date or the Termination Date. In lieu of delivery of a new Certificate, upon satisfaction of the applicable
conditions specified above in this Section and receipt of appropriate registration or transfer instructions from such Holder, the Purchase Contract Agent shall: 
 (i) if the Purchase Contract Settlement Date (including upon any Cash Settlement) or an Early Settlement Date or a Merger Early Settlement
Date with respect to such lost, stolen, destroyed or mutilated Certificate has occurred, deliver the shares of Common Stock issuable in respect of the Purchase Contracts forming a part of the HiMEDS Units evidenced by such Certificate; or

 (ii) if a Merger Early Settlement or an Early Settlement with respect to such lost or mutilated Certificate or if a
Termination Event shall have occurred prior to the Purchase Contract Settlement Date or a Cash Settlement shall have occurred, transfer the 

  

 26 

 
Senior Notes or the Treasury Securities, evidenced thereby, in each case subject to the applicable conditions and in accordance with the applicable
provisions of Section 3.15 and Article 5 hereof. 
 Upon the issuance of any new Certificate under this Section, the Company and the
Purchase Contract Agent may require the payment by the Holder of a sum sufficient to cover any tax or other governmental charge that may be imposed in relation thereto and any other fees and expenses (including, without limitation, the fees and
expenses of the Purchase Contract Agent) connected therewith. 
 Every new Certificate issued pursuant to this Section in lieu of any
destroyed, lost or stolen Certificate shall constitute an original additional contractual obligation of the Company and of the Holder in respect of the HiMEDS Units evidenced thereby, whether or not the destroyed, lost or stolen Certificate (and the
HiMEDS Units evidenced thereby) shall be at any time enforceable by anyone, and shall be entitled to all the benefits and be subject to all the obligations of this Agreement equally and proportionately with any and all other Certificates delivered
hereunder. 
 The provisions of this Section are exclusive and shall preclude, to the extent lawful, all other rights and remedies with
respect to the replacement or payment of mutilated, destroyed, lost or stolen Certificates.
 Section 3.11. Persons Deemed
Owners. Prior to due presentment of a Certificate for registration of transfer, the Company and the Purchase Contract Agent, and any agent of the Company or the Purchase Contract Agent, may treat the Person in whose name such
Certificate is registered as the owner of the HiMEDS Units evidenced thereby for purposes of (subject to any applicable record date) any payment or distribution with respect to the Senior Notes, payment of Contract Adjustment Payments and
performance of the Purchase Contracts and for all other purposes whatsoever in connection with such HiMEDS Units, whether or not such payment, distribution, or performance shall be overdue and notwithstanding any notice to the contrary, and neither
the Company nor the Purchase Contract Agent, nor any agent of the Company or the Purchase Contract Agent, shall be affected by notice to the contrary. 
 Notwithstanding the foregoing, with respect to any Global Certificate, nothing contained herein shall prevent the Company, the Purchase Contract Agent or any agent of the Company or the Purchase Contract Agent, from
giving effect to any written certification, proxy or other authorization furnished by the Depositary (or its nominee), as a Holder, with respect to such Global Certificate, or impair, as between such Depositary and the related Beneficial Owner, the
operation of customary practices governing the exercise of rights of the Depositary (or its nominee) as Holder of such Global Certificate. None of the Company, the Purchase Contract Agent or any agent of the Company or the Purchase Contract
Agent will have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Certificate or maintaining, supervising or reviewing any records relating to such
beneficial ownership interests. 
 Section 3.12. Cancellation. All Certificates surrendered for delivery of shares of
Common Stock on or after the Purchase Contract Settlement Date or in connection with an Early Settlement or a Merger Early Settlement or for delivery of the Senior 

  

 27 

 
Notes underlying the appropriate ownership interests in the Senior Notes or Treasury Securities, as the case may be, after the occurrence of a Termination
Event or pursuant to a Cash Settlement, an Early Settlement or a Merger Early Settlement, or upon the registration of transfer or exchange of a HiMEDS Unit, or a Collateral Substitution or the recreation of Corporate HiMEDS Units shall, if
surrendered to any Person other than the Purchase Contract Agent, be delivered to the Purchase Contract Agent along with appropriate written instructions regarding the cancellation thereof and, if not already cancelled, shall be promptly cancelled
by it. The Company may at any time deliver to the Purchase Contract Agent for cancellation any Certificates previously authenticated, executed and delivered hereunder which the Company may have acquired in any manner whatsoever, and all Certificates
so delivered shall, upon an Issuer Order, be promptly cancelled by the Purchase Contract Agent. No Certificates shall be authenticated, executed on behalf of the Holder and delivered in lieu of or in exchange for any Certificates cancelled as
provided in this Section, except as expressly permitted by this Agreement. All cancelled Certificates held by the Purchase Contract Agent shall be disposed of in accordance with its customary practices. 
 If the Company or any Affiliate of the Company shall acquire any Certificate, such acquisition shall not operate as a cancellation of such Certificate
unless and until such Certificate is delivered to the Purchase Contract Agent cancelled or for cancellation. 
 Section 3.13.
Creation of Treasury HiMEDS Units by Substitution of Treasury Securities. (a) Subject to the conditions set forth in this Agreement, a Holder of Corporate HiMEDS Units may, at any time from and after the date of this Agreement and
on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, effect a Collateral Substitution and separate the Senior Notes from the related Purchase Contracts in respect of such Holder’s
Corporate HiMEDS Units by substituting for such Senior Notes, Treasury Securities in an aggregate principal amount at maturity equal to the aggregate principal amount of such Senior Notes; provided that Holders may make Collateral
Substitutions only in integral multiples of 20 Corporate HiMEDS Units. To effect such substitution, the Holder must: 
  

	 	(1)	Transfer to the Securities Intermediary, for credit to the Collateral Account, Treasury Securities or security entitlements with respect thereto having a Value equal to the
aggregate principal amount of the Pledged Senior Notes to be released; and 

  

	 	(2)	Transfer the related Corporate HiMEDS Units to the Purchase Contract Agent accompanied by a notice to the Purchase Contract Agent, substantially in the form of Exhibit C hereto,
(i) stating that the Holder has Transferred the relevant amount of Treasury Securities to the Securities Intermediary for credit to the Collateral Account and (ii) requesting that the Purchase Contract Agent instruct the Collateral Agent
to release the Pledged Senior Notes underlying such Corporate HiMEDS Units, whereupon the Purchase Contract Agent shall promptly provide an instruction to such effect to the Collateral Agent, substantially in the form of Exhibit G hereto
(A) stating that such Holder has notified the Purchase Contract Agent that such Holder has Transferred Treasury Securities or security entitlements with respect thereto to the Securities Intermediary for credit to the Collateral Account,
(B) stating the Value of the Treasury Securities or security entitlements with respect thereto Transferred by such Holder and (C) requesting that the Collateral Agent release from the Pledge the Pledged Senior Notes that are a component of
such Corporate HiMEDS Units. 

  

 28 

 Upon confirmation that the Treasury Securities described in clause (1) above or security
entitlements with respect thereto have been credited to the Collateral Account and receipt of the instruction to the Collateral Agent described in clause (2) above, the Collateral Agent shall release such Pledged Senior Notes from the Pledge
and instruct the Securities Intermediary by a notice, substantially in the form of Exhibit H hereto, to Transfer such Pledged Senior Notes to the Purchase Contract Agent for distribution to such Holder, free and clear of the Pledge created hereby.

 Upon credit to the Collateral Account of Treasury Securities or security entitlements with respect thereto delivered by a Holder of
Corporate HiMEDS Units and receipt of the related instruction from the Collateral Agent, the Securities Intermediary shall promptly Transfer the appropriate Pledged Senior Notes to the Purchase Contract Agent for distribution to such Holder, free
and clear of the Pledge created hereby. 
 Upon receipt of such Senior Notes, the Purchase Contract Agent shall promptly: 
 (i) cancel the related Corporate HiMEDS Units; 
 (ii) Transfer the Pledged Senior Notes to the Holder (such Senior Notes shall be tradeable as a separate security, independent of the
resulting Treasury HiMEDS Units); and 
 (iii) authenticate, execute on behalf of such Holder and deliver Treasury HiMEDS
Units in book-entry form, or if applicable, in the form of a Treasury HiMEDS Units Certificate executed by the Company in accordance with Section 3.03 evidencing the same number of Purchase Contracts as were evidenced by the cancelled Corporate
HiMEDS Units. 
 Holders who elect to separate the Senior Notes from the related Purchase Contracts and to substitute Treasury Securities for
such Senior Notes shall be responsible for any fees or expenses, (including, without limitation, fees and expenses payable to the Collateral Agent), in respect of the substitution, and neither the Company nor the Purchase Contract Agent shall be
responsible for any such fees or expenses. 
 (b) In the event a Holder making a Collateral Substitution pursuant to this Section 3.13
fails to effect a book-entry transfer of the Corporate HiMEDS Units or fails to deliver Corporate HiMEDS Units Certificates to the Purchase Contract Agent after depositing Treasury Securities with the Securities Intermediary, any distributions on
the Senior Notes constituting a part of such Corporate HiMEDS Units shall be held in the name of the Purchase Contract Agent or its nominee in trust for the benefit of such Holder, until such Corporate HiMEDS Units are so transferred or the
Corporate HiMEDS Units Certificate is so delivered, as the case may be, or such Holder provides evidence satisfactory to the Company and the Purchase Contract Agent that such Corporate HiMEDS Units Certificate has been destroyed, lost or stolen,
together with any indemnity that may be required by the Purchase Contract Agent and the Company. 
  

 29 

 (c) Except as described in Section 5.02 or in this Section 3.13 or in connection with a Cash
Settlement, an Early Settlement, a Merger Early Settlement or a Termination Event, for so long as the Purchase Contract underlying a Corporate HiMEDS Unit remains in effect, such Corporate HiMEDS Units shall not be separable into its constituent
parts, and the rights and obligations of the Holder in respect of the Senior Notes and the Purchase Contract comprising such Corporate HiMEDS Units may be acquired, and may be transferred and exchanged, only as a Corporate HiMEDS Unit. 

Section 3.14. Recreation of Corporate HiMEDS Units. (a) Subject to the conditions set forth in this Agreement, a Holder of
Treasury HiMEDS Units may recreate Corporate HiMEDS Units at any time on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date; provided that Holders of Treasury HiMEDS Units may only
recreate Corporate HiMEDS Units in integral multiples of 20 Treasury HiMEDS Units. To recreate Corporate HiMEDS Units, the Holder must: 
  

	 	(1)	Transfer to the Securities Intermediary for credit to the Collateral Account Senior Notes or security entitlements with respect thereto having an aggregate principal amount equal to
the Value of the Pledged Treasury Securities to be released; and 

  

	 	(2)	Transfer the related Treasury HiMEDS Units to the Purchase Contract Agent accompanied by a notice to the Purchase Contract Agent, substantially in the form of Exhibit C hereto,
(i) stating that the Holder has transferred the relevant amount of Senior Notes to the Collateral Agent and (ii) requesting that the Purchase Contract Agent instruct the Collateral Agent to release the Pledged Treasury Securities
underlying such Treasury HiMEDS Units, whereupon the Purchase Contract Agent shall promptly provide an instruction to such effect to the Collateral Agent, substantially in the form of Exhibit I hereto stating that such Holder has Transferred the
Pledged Senior Notes or security entitlements with respect thereto to the Securities Intermediary for credit to the Collateral Account and requesting that the Collateral Agent release from the Pledge the Pledged Treasury Securities related to such
Treasury HiMEDS Units. 

 Upon confirmation that the Senior Notes described in clause (1) above or security entitlements
with respect thereto has been credited to the Collateral Account and receipt of the instruction to the Collateral Agent to the Collateral Agent described in clause (2) above, the Collateral Agent shall release such Pledged Treasury Securities
from the Pledge and shall instruct the Securities Intermediary by a notice substantially in the form of Exhibit J hereto to Transfer such Pledged Treasury Securities to the Purchase Contract Agent for distribution to such Holder, free and clear of
the Pledge created hereby. 
 Upon credit to the Collateral Account of Senior Notes or security entitlements with respect thereto delivered
by a Holder of Treasury HiMEDS Units and receipt of the related instruction from the Collateral Agent, the Securities Intermediary shall promptly Transfer the appropriate Pledged Treasury Securities to the Purchase Contract Agent for distribution to
such Holder, free and clear of the Pledge created hereby. 
  

 30 

 Upon receipt of such Treasury Securities, the Purchase Contract Agent shall promptly: 
 (i) cancel the related Treasury HiMEDS Units; 
 (ii) Transfer the Treasury Securities to the Holder; and
 (iii) authenticate, execute on behalf of such Holder and deliver Corporate HiMEDS Units in book-entry form or, if applicable, in the form
of a Corporate HiMEDS Units Certificate executed by the Company in accordance with Section 3.03 evidencing the same number of Purchase Contracts as were evidenced by the cancelled Treasury HiMEDS Units. 
 Holders who elect to recreate Corporate HiMEDS Units shall be responsible for any fees or expenses, (including, without limitation, fees and expenses
payable to the Collateral Agent), in respect of the recreation, and neither the Company nor the Purchase Contract Agent shall be responsible for any such fees or expenses. 
 (b) Except as provided in Section 5.02 or in this Section 3.14 or in connection with a Cash Settlement, an Early Settlement, a Merger Early
Settlement or a Termination Event, for so long as the Purchase Contract underlying a Treasury HiMEDS Unit remains in effect, such Treasury HiMEDS Unit shall not be separable into its constituent parts and the rights and obligations of the Holder of
such Treasury HiMEDS Unit in respect of the 1/20, or 5.00%, of a Treasury Security and the Purchase Contract comprising such Treasury HiMEDS Unit may be acquired, and may be transferred and exchanged, only as a Treasury HiMEDS Unit. 
 Section 3.15. Transfer of Collateral upon Occurrence of Termination Event. (a) Upon receipt by the Collateral Agent of written notice
pursuant to Section 5.06 hereof from the Company that a Termination Event has occurred, the Collateral Agent shall release all Collateral from the Pledge and shall promptly instruct the Securities Intermediary to Transfer: 
 (i) any Pledged Senior Notes or security entitlements with respect thereto; 
 (ii) any Pledged Treasury Securities, 
 (iii) any payments by Holders pursuant to Section 5.02 hereof; and 
 (iv) any Proceeds
and all principal payments the Collateral Agent receives in respect of the foregoing, 
 to the Purchase Contract Agent for the benefit of the Holders for
distribution to such Holders, in accordance with their respective interests, free and clear of the Pledge created hereby; provided, however, if any Holder shall be entitled to receive Senior Notes in an aggregate principal amount of
less than $1,000, or greater than $1,000 but not in an integral multiple of $1,000, the Purchase Contract Agent shall request, on behalf of such Holder, pursuant to Section 2.03 of the Supplemental Indenture that the Company issue Senior Notes
in denominations of $50, or integral multiples thereof, in exchange for Senior Notes in denominations of $1,000 or integral 

  

 31 

 
multiples thereof; provided further, if any Holder shall be entitled to receive less than $1,000 with respect to its Pledged Treasury Securities, the
Purchase Contract Agent shall have the right (but not the obligation) to dispose of such Pledged Treasury Securities for cash and deliver to such Holder cash in lieu of delivering the Pledged Treasury Securities. 
 (b) If such Termination Event shall result from the Company’s becoming a debtor under the Bankruptcy Code, and if the Collateral Agent shall for any
reason fail or be unable promptly to effectuate the release and Transfer of all Pledged Senior Notes, Pledged Treasury Securities and payments by Holders pursuant to Section 5.02 and Proceeds of any of the foregoing, as the case may be, as
provided by this Section 3.15, the Purchase Contract Agent shall use its commercially reasonable efforts to obtain an opinion of a nationally recognized law firm to the effect that, notwithstanding the Company’s being the debtor in such a
bankruptcy case, the Collateral Agent will not be prohibited from releasing or Transferring the Collateral as provided in this Section 3.15, and shall deliver or cause to be delivered such opinion to the Collateral Agent within ten days after
the occurrence of such Termination Event, and if (A) the Purchase Contract Agent shall be unable to obtain such opinion within ten days after the occurrence of such Termination Event or (B) the Collateral Agent shall continue, after
delivery of such opinion, to refuse to effectuate the release and Transfer of all Pledged Senior Notes, Pledged Treasury Securities and the payments by Holders pursuant to Section 5.02 hereof and Proceeds of any of the foregoing, as the case
may be, as provided in this Section 3.15, then the Purchase Contract Agent shall within fifteen days after the occurrence of such Termination Event commence an action or proceeding in the court having jurisdiction of the Company’s case
under the Bankruptcy Code seeking an order requiring the Collateral Agent to effectuate the release and transfer of all Pledged Senior Notes, Pledged Treasury Securities and the payments by Holders pursuant to Section 5.02 hereof and Proceeds
of any of the foregoing, or as the case may be, as provided by this Section 3.15. 
 (c) Upon the occurrence of a Termination Event and
the Transfer to the Purchase Contract Agent of the Pledged Senior Notes or the Pledged Treasury Securities, as the case may be, pursuant to Section 3.15(a), the Purchase Contract Agent shall request transfer instructions with respect to such
Pledged Senior Notes or Pledged Treasury Securities, as the case may be, from each Holder by written request, substantially in the form of Exhibit D hereto, mailed to such Holder at its address as it appears in the Security Register. 
 (d) Upon book-entry transfer of the Corporate HiMEDS Units or the Treasury HiMEDS Units or delivery of a Corporate HiMEDS Units Certificate or Treasury
HiMEDS Units Certificate to the Purchase Contract Agent with such transfer instructions, the Purchase Contract Agent shall transfer the Pledged Senior Notes or Pledged Treasury Securities, as the case may be, and Proceeds of any of the foregoing,
underlying such Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be, to such Holder by book-entry transfer, or other appropriate procedures, in accordance with such instructions and, in the case of the Pledged Senior Notes, in
accordance with the terms of the Supplemental Indenture. In the event a Holder of Corporate HiMEDS Units or Treasury HiMEDS Units fails to effect such transfer or delivery, the Pledged Senior Notes or Pledged Treasury Securities, as the case
may be, and Proceeds of any of the foregoing and any distributions thereon, shall be held in the name of the Purchase Contract Agent or its nominee in trust for the benefit of such Holder, until the earlier to occur of: 
  

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 (i) the transfer of such Corporate HiMEDS Units or Treasury HiMEDS Units or surrender of
the Corporate HiMEDS Units Certificate or Treasury HiMEDS Units Certificate or the receipt by the Company and the Purchase Contract Agent from such Holder of satisfactory evidence that such Corporate HiMEDS Units Certificate or Treasury HiMEDS Units
Certificate has been destroyed, lost or stolen, together with any indemnity that may be required by the Purchase Contract Agent and the Company; and 
 (ii) the expiration of the time period specified in the abandoned property laws of the state in which the Purchase Contract Agent holds such property. 
 Section 3.16. No Consent to Assumption. Each Holder of a Unit, by acceptance thereof, shall be deemed expressly to have withheld
any consent to the assumption under Section 365 of the Bankruptcy Code or otherwise, of the Purchase Contract by the Company or its trustee, receiver, liquidator or a person or entity performing similar functions in the event that the Company
becomes the debtor under the Bankruptcy Code or subject to other similar state or Federal law providing for reorganization or liquidation. 
 Section 3.17. Substitutions. Whenever a Holder has the right to substitute Treasury Securities, Senior Notes or security entitlements for any of them, as the case may be, for financial assets held in the Collateral
Account, such substitution shall not constitute a novation of the security interest created hereby. 
 ARTICLE 4 
 THE SENIOR NOTES 
 Section 4.01.
Interest Payments; Rights to Interest Payments Preserved. (a) The Collateral Agent shall transfer all income and distributions received by it on account of the Pledged Senior Notes from time to time held in the Collateral Account
(The Bank of New York ABA#                 , A/C#                  A/C:
                , Ref.: BankUnited HiMEDS Units Collateral Account, Attn: Stacey Poindexter) to the Purchase Contract Agent for distribution to the applicable Holders as
provided in this Agreement and the Purchase Contracts. 
 (b) Any payment on any Pledged Senior Note which is paid on any Payment Date shall,
subject to receipt thereof by the Purchase Contract Agent from the Company or from the Collateral Agent as provided in Section 4.01 above, be paid by the Purchase Contract Agent to the Person in whose name the Corporate HiMEDS Units Certificate
(or one or more Predecessor Corporate HiMEDS Units Certificates) of which such Pledged Senior Note forms a part is registered at the close of business on the Record Date for such Payment Date or to the Holder of Corporate HiMEDS Units transforming
Corporate HiMEDS Units into Treasury HiMEDS Units or exercising an Early Settlement in accordance with Section 5.07.
 (c) Each
Corporate HiMEDS Units Certificate evidencing Senior Notes delivered under this Agreement upon registration of transfer of or in exchange for or in lieu of any other Corporate HiMEDS Units Certificate shall carry the right to accrued and unpaid
interest, and to accrue interest, which were carried by the Senior Notes underlying such other Corporate HiMEDS Units Certificate. 
  

 33 

 (d) In the case of any Corporate HiMEDS Unit with respect to which (i) Cash Settlement of the
underlying Purchase Contract is properly effected pursuant to Section 5.02(b) hereof, (ii) Early Settlement of the underlying Purchase Contract is properly effected pursuant to Section 5.07 hereof, (iii) Merger Early Settlement
of the underlying Purchase Contract is properly effected pursuant to Section 5.04(b)(ii) hereof, or (iv) a Collateral Substitution is properly effected pursuant to Section 3.13, in each case on a date that is after any Record Date and
prior to or on the next succeeding Payment Date, interest on the Senior Notes underlying such Corporate HiMEDS Unit otherwise payable on such Payment Date shall be payable on such Payment Date notwithstanding such Cash Settlement, Early Settlement,
Merger Early Settlement or Collateral Substitution, and such payment or distributions shall, subject to receipt thereof by the Purchase Contract Agent, be payable to the Person in whose name the Corporate HiMEDS Units Certificate (or one or more
Predecessor Corporate HiMEDS Units Certificates) was registered at the close of business on the Record Date. 
 (e) Except as otherwise
expressly provided in Section 4.01(d) hereof, in the case of any Corporate HiMEDS Units with respect to which Cash Settlement, Early Settlement or Merger Early Settlement of the underlying Purchase Contract is properly effected, or with respect
to which a Collateral Substitution has been effected, payments on the related Senior Notes that would otherwise be payable or made after the Purchase Contract Settlement Date, Early Settlement Date, Merger Early Settlement Date or the date of the
Collateral Substitution, as the case may be, shall not be payable hereunder to the Holder of such Corporate HiMEDS Units; provided, however, that to the extent that such Holder continues to hold Separate Senior Notes that formerly
comprised a part of such Holder’s Corporate HiMEDS Units, such Holder shall be entitled to receive payments on such Separate Senior Notes. 
 Section 4.02. Notice and Voting. (a) Upon receipt of any notices and other communications in respect of any Pledged Senior Notes, including notice of any meeting at which holders of the Senior Notes are entitled
to vote or solicitation of consents, waivers or proxies of holders of the Senior Notes, the Collateral Agent shall use reasonable efforts to send promptly to the Purchase Contract Agent such notice or communication, and as soon as reasonably
practicable after receipt of a written request therefor from the Purchase Contract Agent, execute and deliver to the Purchase Contract Agent such proxies and other instruments in respect of such Pledged Senior Notes (in form and substance
satisfactory to the Collateral Agent) as are prepared by the Company and delivered to the Purchase Contract Agent with respect to the Pledged Senior Notes. 
 (b) Upon receipt of notice of any meeting at which holders of Senior Notes are entitled to vote or upon any solicitation of consents, waivers or proxies of holders of Senior Notes, the Purchase Contract Agent shall,
as soon as practicable thereafter, mail, first class, postage pre-paid, to the Holders of Corporate HiMEDS Units a notice: 
 (i) containing such information as is contained in the notice or solicitation; 
 (ii) stating that each Holder on
the record date set by the Purchase Contract Agent therefor (which, to the extent possible, shall be the same date as the record date for determining the holders of Senior Notes, as the case may be, entitled to vote) shall be entitled to instruct
the Purchase Contract Agent as to the exercise of the voting rights pertaining to such Senior Notes underlying their Corporate HiMEDS Units; and 
  

 34 

 (iii) stating the manner in which such instructions may be given. 
 Upon the written request of the Holders of Corporate HiMEDS Units on such record date received by the Purchase Contract Agent at least six days prior to such meeting,
the Purchase Contract Agent shall endeavor insofar as practicable to vote or cause to be voted, in accordance with the instructions set forth in such requests, the maximum number of Senior Notes, as the case may be, as to which any particular voting
instructions are received. In the absence of specific instructions from the Holder of a Corporate HiMEDS Unit, the Purchase Contract Agent shall abstain from voting the Senior Notes underlying such Corporate HiMEDS Unit. The Company hereby
agrees, if applicable, to solicit Holders of Corporate HiMEDS Units to timely instruct the Purchase Contract Agent in order to enable the Purchase Contract Agent to vote such Senior Notes. 
 (c) The Holders of Corporate HiMEDS Units and Treasury HiMEDS Units shall have no voting or other rights in respect of Common Stock. 
 Section 4.03. Payments to Purchase Contract Agent. The Securities Intermediary shall use commercially reasonable efforts to
deliver any payments required to be made by it to the Purchase Contract Agent hereunder to the account designated by the Purchase Contract Agent for such purpose not later than 12:00 p.m., New York City time, on the Business Day such payment is
received by the Securities Intermediary; provided, however, that if such payment is received on a day that is not a Business Day or after 11:00 a.m., New York City time, on a Business Day, then the Securities Intermediary shall use
commercially reasonable efforts to deliver such payment to the Purchase Contract Agent no later than 10:30 a.m., New York City time, on the next succeeding Business Day. 
 Section 4.04. Payments Held in Trust. If the Purchase Contract Agent or any Holder shall receive any principal payments on account of financial assets credited to the Collateral Account and not
released therefrom in accordance with this Agreement, the Purchase Contract Agent or such Holder shall hold the same as trustee of an express trust for the benefit of the Company and, upon receipt of an Officers’ Certificate of the Company so
directing, promptly deliver the same to the Securities Intermediary for credit to the Collateral Account or to the Company for application to the Obligations of the Holders, and the Purchase Contract Agent and Holders shall acquire no right, title
or interest in any such payments of principal amounts so received. The Purchase Contract Agent shall have no liability under this Section 4.04 unless and until it has been notified in writing that such payment was delivered to it
erroneously and shall have no liability for any action taken, suffered or omitted to be taken prior to its receipt of such notice. 
 ARTICLE
5 
 THE PURCHASE CONTRACTS 
 Section 5.01. Purchase of Shares of Common Stock. (a) Each Purchase Contract shall obligate the Holder of the related HiMEDS Units to purchase, and the Company to sell, on the Purchase Contract Settlement Date
at a price equal to the Stated Amount 
  

 35 

 
(the “Purchase Price”), a number of newly issued shares of Common Stock (subject to Section 5.08) equal to the Settlement Rate unless
an Early Settlement, a Merger Early Settlement or a Termination Event with respect to the HiMEDS Units of which such Purchase Contract is a part shall have occurred. The “Settlement Rate” is equal to: 
 (i) If the Adjusted Applicable Market Value (as defined below) is greater than or equal to $32.76 (the “Threshold Appreciation
Price”), the Settlement Rate will equal a number of shares of Common Stock determined by the following formula (such Settlement Rate being referred to as the “High Settlement Rate”): 
 

 
 where: 
 “SA” refers to the Stated Amount ($50.00); 
 “RP” refers to the Reference Price ($23.40);

 “AAMV” refers to the Adjusted Applicable Market Value; 
 “TAP” refers to the Threshold Appreciation Price ($32.76); and 
 “AF” refers to the Anti-Dilution Factor. 
 (ii) if the Adjusted Applicable Market
Value is less than the Threshold Appreciation Price but greater than $23.40 (the “Reference Price”), the number of shares of Common Stock per Purchase Contact having a value equal to the Stated Amount divided by the Applicable
Market Value; 
 (iii) if the Adjusted Applicable Market Value is less than or equal to the Reference Price, 2.1368 shares of
Common Stock per Purchase Contract (such Settlement Rate being referred to as the “Low Settlement Rate”); 
 and in each case rounded
upward or downward to the nearest 1/10,000th of a share. 
 “Adjusted Applicable Market Value” means the product of
(x) the Applicable Market Value multiplied by (y) the Anti-Dilution Factor in effect on the relevant Settlement Date; provided, however, that if an adjustment to the Anti-Dilution Factor is required to be made pursuant to Section 5.04
during the period taken into consideration for determining the Applicable Market Value, appropriate and customary adjustments shall be made to the Anti-Dilution Factor. 
  

 36 

 “Applicable Market Value” means the average of the Closing Price per share of Common
Stock (or any securities distributed in a Spin-Off or any common stock constituting part of an Exchange Property Unit) on each Trading Day in the Observation Period; provided, however, that if the Company enters into a Reorganization Event,
Applicable Market Value shall mean the Exchange Property Unit value. Following the occurrence of any such event, references herein to the purchase or issuance of shares of our class A common stock should be construed to be references to settlement
into Exchange Property Units. For purposes of calculating the Exchange Property Unit value, (x) the value of any common stock shall be determined using the average of the Closing Price per unit of such common stock on each of the 20 consecutive
Trading Days ending on the third Trading Day immediately preceding the applicable Settlement Date and (y) the value of any other property, including securities other than common stock, shall be the value of such property determined at the
effective time of the applicable Reorganization Event. 
 The “Closing Price” per share of Common Stock (or any securities
distributed in a Spin-Off or any common stock constituting part of an Exchange Property Unit, as the case may be), on any date of determination means the closing sale price (or, if no closing sale price is reported, the last reported sale price) per
share on the NYSE on such date or, if such security is not listed for trading on the NYSE on any such date, as reported in the composite transactions for the principal U.S. national or regional securities exchange on which such security is so listed
or quoted, or if such security is not so listed or quoted on a U.S. national or regional securities exchange, as reported by the NASDAQ stock market, or, if such security is not so reported, the last quoted bid price for the such security in the
over-the-counter market as reported by the Pink Sheets LLC or similar organization, or, if such bid price is not available, the market value of such security on such date as determined by a nationally recognized independent investment banking firm
retained for this purpose by the Company. 
 A “Trading Day” means a day during which trading in securities generally occurs
on the principal U.S. national or regional securities exchange on which the Common Stock, any security distributed in a Spin-Off or such other common stock, as the case may be, is then listed or, if the Common Stock, any security distributed in a
Spin-Off or such other common stock, as the case may be, is not listed on a U.S. national or regional securities exchange, as reported by any recognized automated inter-dealer quotation system or, if the Common Stock, any security distributed in a
Spin-Off or such other common stock, as the case may be, is not so reported, on the principal over-the-counter market on which the Common Stock, any security distributed in a Spin-Off or such other common stock, as the case may be, is then traded.
No day on which the Common Stock, any security distributed in a Spin-Off or such other common stock, as the case may be, experiences any of the following, however, will count as a Trading Day: 
  

	 	(1)	any suspension of or limitation imposed on trading of the Common Stock, any security distributed in a Spin-Off or such other common stock, as the case may be, on the principal U.S.
national or regional securities exchange or automated inter-dealer quotation system or over-the-counter market on which it is listed or traded; 

  

	 	(2)	 any event (other than an event listed clause (3) below) that disrupts or impairs the ability of market participants in general to effect transactions in or
obtain market values for the Common Stock, any security distributed in a Spin-Off or such other 

  

 37 

	 	 
common stock, as the case may be, on the principal U.S. national or regional securities exchange or automated inter-dealer quotation system or
over-the-counter market on which it is listed or traded; or 

  

	 	(3)	the principal U.S. national or regional securities exchange or automated inter-dealer quotation system or over-the-counter market on which the Common Stock, any security distributed
in a Spin-Off or such other common stock, as the case may be, is listed or trades closes on any exchange business day prior to its scheduled closing time unless, in the case of an exchange or automated inter-dealer quotation system, such earlier
closing time is announced by the exchange or system at least one hour prior to the earlier of (i) the actual closing time for the regular trading session on that exchange and (ii) the submission deadline for orders to be entered into the
exchange for execution on that Business Day. 

 The “Anti-Dilution Factor” shall initially be equal to one and
shall be subject to adjustment as set forth in Section 5.04. 
 (b) Each Holder of a Corporate HiMEDS Unit or a Treasury HiMEDS Unit, by
its acceptance of such HiMEDS Unit: 
 (i) irrevocably authorizes the Purchase Contract Agent to enter into and perform the
related Purchase Contract on its behalf as its attorney-in-fact (including, without limitation, the execution of Certificates on behalf of such Holder);
 (ii) agrees to be bound by the terms and provisions thereof;
 (iii) covenants and agrees to
perform its obligations under such Purchase Contract for so long as such Holder remains a Holder of a Corporate HiMEDS Unit or a Treasury HiMEDS Unit; 
 (iv) consents to the provisions hereof; 
 (v) irrevocably authorizes the Purchase Contract
Agent to enter into and perform this Agreement on its behalf and in its name as its attorney-in-fact; 
 (vi) consents to, and
agrees to be bound by, the Pledge of such Holder’s right, title and interest in and to the Collateral Account, including the Senior Notes or the Treasury Securities pursuant to this Agreement; and 
 (vii) for tax purposes, agrees to (i) treat its acquisition of the Corporate HiMEDS Units as an acquisition of the Senior Note and
Purchase Contract constituting the Corporate HiMEDS Units, (ii) treat the Senior Notes as indebtedness of the Company and (iii) treat itself as the owner of the applicable interests in the Collateral Account, including the Senior Notes or
the Treasury Securities, 
 provided that upon a Termination Event, the rights of the Holder of such HiMEDS Units under the Purchase Contract may be
enforced without regard to any other rights or obligations.
  

 38 

 (c) Each Holder of a Corporate HiMEDS Unit or a Treasury HiMEDS Unit, by its acceptance thereof, further
covenants and agrees that to the extent and in the manner provided in Section 5.02 hereof, but subject to the terms thereof, Proceeds of the Pledged Senior Notes or the Pledged Treasury Securities on the Purchase Contract Settlement Date, shall
be paid by the Collateral Agent to the Company in satisfaction of such Holder’s obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such Proceeds. 
 (d) Upon registration of transfer of a Certificate, the transferee shall be bound (without the necessity of any other action on the part of such
transferee) by the terms of this Agreement and the Purchase Contracts underlying such Certificate and the transferor shall be released from the obligations under this Agreement and the Purchase Contracts underlying the Certificate so
transferred. The Company covenants and agrees, and each Holder of a Certificate, by its acceptance thereof, likewise covenants and agrees, to be bound by the provisions of this paragraph. 
 Section 5.02. Payment of Purchase Price; Remarketing. (a) (i) Unless a Termination Event has occurred, or a Holder of a
Corporate HiMEDS Unit has settled the underlying Purchase Contract through an Early Settlement pursuant to Section 5.07 or a Merger Early Settlement pursuant to Section 5.04(b)(ii), each Holder of a Corporate HiMEDS Unit may pay in cash
(“Cash Settlement”) the Purchase Price for the Common Stock to be purchased pursuant to a Purchase Contract if such Holder notifies the Purchase Contract Agent by surrender of the Corporate HiMEDS Unit Certificate, if in
certificated form, and delivery of a notice in substantially the form of Exhibit E hereto of its intention to make a Cash Settlement. Such notice shall be made on or prior to 4:00 p.m., New York City time, on the second Business Day immediately
preceding the Remarketing Date. The Purchase Contract Agent shall promptly notify the Collateral Agent of the receipt of such a notice from a Holder intending to make a Cash Settlement. 
 (ii) After the Company or the Purchase Contract Agent has issued the Remarketing Notice, a Holder of a Corporate HiMEDS Unit who has so notified the
Purchase Contract Agent of its intention to make a Cash Settlement is required to pay the requisite amount of cash in lawful money of the United States by certified or cashier’s check or wire transfer, in each case, in immediately available
funds, equal to the Purchase Price per Purchase Contract (the “Cash Consideration”) to the Collateral Agent not later than 4:00 p.m. New York City time on the second Business Day immediately preceding the Remarketing Date as set
forth in the Remarketing Notice and following the procedures to exchange its Corporate HiMEDS Units for Treasury HiMEDS Units (substituting references to Treasury Securities with references to Cash Consideration) as described in Section 3.13.
In such event, all references to the Treasury Securities or Pledged Treasury Securities herein, including for purposes of Sections 3.15 and 5.06, shall be deemed to include such Cash Consideration in addition to the Treasury Securities. The
Collateral Agent will hold the Cash Consideration for the benefit of the Company and apply such Cash Consideration to secure such Holder’s obligations under the Purchase Contracts. On the Business Day immediately preceding the first day of the
Remarketing Period, the Collateral Agent will deliver the Pledged Senior Notes of such Holder to the Purchase Contract Agent and within three Business Days thereof, the Purchase Contract Agent shall distribute such Senior Notes to the Holders
entitled thereto. Any Cash Consideration received by the Collateral Agent will be paid to the Company on the Purchase Contract Settlement Date in settlement of the Purchase Contract in accordance 

  

 39 

 
with the terms of this Agreement, and any funds received by the Collateral Agent in excess of the Purchase Price for the Common Stock to be purchased by such
Holder shall be distributed to the Purchase Contract Agent when received for payment to the Holder. 
 (iii) If a Holder of a Corporate
HiMEDS Unit fails to notify the Purchase Contract Agent of its intention to make a Cash Settlement in accordance with paragraph (a)(i) above, the Holder shall be deemed to have consented to the disposition of the Pledged Notes pursuant to the
remarketing as described in paragraph (c) below. If a Holder of a Corporate HiMEDS Unit does notify the Purchase Contract Agent as provided in paragraph (a)(i) above of its intention to pay the Purchase Price in cash, but fails to make such
payment as required by paragraph (a)(ii) above, the Holder shall be deemed to have consented to the disposition of the Pledged Notes pursuant to the remarketing as described in paragraph (c) below. By 6:00 p.m., New York City time, on the
second Business Day immediately preceding the Remarketing Date, the Collateral Agent shall notify the Purchase Contract Agent and the Remarketing Agent of the aggregate principal amount of the Pledged Senior Notes to be remarketed by delivering a
notice in the form of Exhibit K hereto and by noon, New York City time, on the Business Day immediately preceding the Remarketing Date, shall deliver to the Remarketing Agent for remarketing all Pledged Senior Notes. 
 (b) On or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date but no earlier than 35 Business
Days prior to the Remarketing Date, holders of Separate Senior Notes may elect to have their Separate Senior Notes remarketed under the Remarketing Agreement by delivering their Separate Senior Notes, along with a notice of such election,
substantially in the form of Exhibit L hereto, to the Custodial Agent. The Custodial Agent shall hold the Separate Senior Notes in an account separate from the Collateral Account in which the Pledged Senior Notes shall be held. Holders of
Separate Senior Notes electing to have their Separate Senior Notes remarketed will also have the right to withdraw that election by written notice to the Custodial Agent, substantially in the form of Exhibit M hereto, on or prior to 4:00 p.m., New
York City time, on the second Business Day immediately preceding the Remarketing Date, upon which notice the Custodial Agent shall return such Separate Senior Notes to such holder. After such time, such election to remarket shall become an
irrevocable election to have such Separate Senior Notes remarketed in such remarketing. By 6:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, the Custodial Agent shall notify the Purchase
Contract Agent and the Remarketing Agent of the aggregate principal amount of the Separate Senior Notes to be remarketed by delivering a notice in the form of Exhibit K hereto and by noon, New York City time, on the Business Day immediately
preceding the Remarketing Date, shall deliver to the Remarketing Agent for remarketing all Separate Senior Notes delivered to the Custodial Agent pursuant to this Section 5.02(b) and not withdrawn pursuant to the terms hereof prior to such
date. 
 (c) (i) The Company shall engage, no later than 35 days prior to the Remarketing Date, a nationally recognized investment bank
(the “Remarketing Agent”) pursuant to a Remarketing Agreement to be entered into among the Company and the Remarketing Agent and the Purchase Contract Agent, providing for remarketing procedures substantially as set forth below to sell the
Senior Notes of Holders of Corporate HiMEDS Units, other than Holders that have elected not to participate in the remarketing pursuant to the 

  

 40 

 
procedures set forth in paragraph (a) above, and to sell the Senior Notes of holders of Separate Senior Notes that have elected to participate in the
remarketing pursuant to the procedures set forth herein and Section 5.02 of the Supplemental Indenture. The Company or the Purchase Contract Agent, at the Company’s request, shall notify (the “Remarketing Notice”), not
later than 10:00 a.m., New York City time, on the twenty-third Business Day immediately preceding the Purchase Contract Settlement Date, Holders of Corporate HiMEDS Units, and holders of Separate Senior Notes, of the remarketing to take place on the
Remarketing Date, and if necessary, on the eighth Business Day immediately preceding the Purchase Contract Settlement Date, and if necessary, on the seventh Business Day immediately preceding the Purchase Contract Settlement Date, and if necessary,
on the sixth Business Day immediately preceding the Purchase Contract Settlement Date, and if necessary, on the fifth Business Day immediately preceding the Purchase Contract Settlement Date, and if necessary, on the fourth Business Day immediately
preceding the Purchase Contract Settlement Date, and if necessary, on the third Business Day immediately preceding the Purchase Contract Settlement Date (each such date other than the Remarketing Date, a “Subsequent Remarketing
Date”) (and if such Corporate HiMEDS Units or Separate Senior Notes are held in global form, the Company, or the Purchase Contract Agent, at the Company’s request, will cause the Depositary to notify the Depositary Participants of such
remarketing by no later than the twenty-third Business Day preceding the Purchase Contract Settlement Date). The Remarketing Notice will include the amount of cash that must be delivered by the Holders of Corporate HiMEDS Units that elect not to
participate in the remarketing and the deadline for such delivery, as well as information with respect to the exercise of the Put Right (as defined in the Supplemental Indenture). The Purchase Contract Agent shall notify, by 6:00 p.m., New York City
time, on the second Business Day immediately preceding the Remarketing Date, the Remarketing Agent and the Collateral Agent of the aggregate principal amount of Senior Notes of Corporate HiMEDS Unit Holders to be remarketed. On the second Business
Day immediately preceding the Remarketing Date, no later than by 6:00 p.m., New York City time, pursuant to the terms of this Agreement, the Custodial Agent will notify the Remarketing Agent of the aggregate principal amount of Separate Senior Notes
to be remarketed. No later than noon, New York City time, on the Business Day immediately preceding the Remarketing Date, the Collateral Agent and the Custodial Agent, pursuant to the terms of this Agreement, will deliver for remarketing to the
Remarketing Agent all Senior Notes to be remarketed. Upon receipt of such notice from the Purchase Contract Agent and the Custodial Agent and such Senior Notes from the Collateral Agent and the Custodial Agent, the Remarketing Agent will, on the
Remarketing Date, and if necessary, on each Subsequent Remarketing Date, use its reasonable best efforts to sell such Senior Notes on such dates at an aggregate price equal to 100.25% of the Remarketing Value of such Senior Notes. In the event of a
successful remarketing pursuant to this Section 5.02, the Remarketing Agent will deduct as a remarketing fee an amount not exceeding 25 basis points (0.25%) of the Remarketing Value of such Notes (the “Remarketing Fee”). The
Remarketing Agent will then remit (1) to the Custodial Agent, for the benefit of the holders of Separate Senior Notes that were remarketed, proceeds from the remarketing equal to the principal amount of the Separate Senior Notes included in the
remarketing, (2) to the Collateral Agent, for the benefit of the Company, proceeds from the remarketing equal to the principal amount of the Senior Notes included in the remarketing that were not Separate Senior Notes, such proceeds to be used
to pay the Company in direct settlement of the Holders’ obligations under the Purchase Contracts, and (3) any excess amount to the Custodial Agent and the Purchase Contract Agent for distribution on a pro rata 

  

 41 

 
basis to holders of the Separate Senior Notes and Holders of Corporate HiMEDS Units, in each case, on or prior to the Purchase Contract Settlement Date.
Holders whose Senior Notes are so remarketed will not otherwise be responsible for the payment of any Remarketing Fee in connection therewith. On the Purchase Contract Settlement Date, the Collateral Agent will release the proceeds from the
remarketing of the Senior Notes that were not Separate Senior Notes to the Purchase Contract Agent which shall pay the Company in full satisfaction of the obligations of the Holders of Corporate HiMEDS Units under their related Purchase Contracts.

 (ii) If, in spite of using its reasonable best efforts, the Remarketing Agent cannot remarket the Senior Notes included in the remarketing
at a price equal to 100.25% of the Remarketing Value of the Senior Notes included in the remarketing on the Remarketing Date, the Remarketing Agent will attempt to establish a Reset Rate meeting these requirements on each of the Subsequent
Remarketing Dates. If, in spite of using its reasonable best efforts, the Remarketing Agent fails to remarket the Senior Notes included in the remarketing at a price equal to 100.25% of the Remarketing Value of the Senior Notes included in the
remarketing on or before 4:00 p.m., New York City time on the third Business Day immediately preceding the Purchase Contract Settlement Date, the remarketing will be deemed to have failed (the “Last Failed Remarketing”), and in this
case, the Remarketing Agent will agree to advise the Collateral Agent in writing that it cannot remarket the Senior Notes. Within three Business Days following the date of the Last Failed Remarketing, the Remarketing Agent shall return any Senior
Notes delivered to it to the Collateral Agent and the Custodial Agent, as applicable. The Collateral Agent, for the benefit of the Company will exercise its rights as a secured party with respect to such Senior Notes, including those actions
specified in (b) (iii) below; provided that if upon the Last Failed Remarketing, the Collateral Agent exercises such rights for the benefit of the Company with respect to such Senior Notes, any accumulated and unpaid interest on such
Senior Notes will become payable by the Company to the Purchase Contract Agent for payment to the Holders of the Corporate HiMEDS Units to which such Senior Notes relate; in the event a successful remarketing, interest on the Senior Notes will be
paid to the record Holders entitled thereto. Such payment will be made by the Company on or prior to 2:00 p.m., New York City time, on the Purchase Contract Settlement Date in lawful money of the United States by certified or cashier’s check or
wire transfer in immediately available funds payable to or upon the order of the Purchase Contract Agent. The Company will cause a notice of any failed remarketing and of the Last Failed Remarketing to be published before 9:00 a.m., New York City
time, on the Business Day following each failed remarketing and the Last Failed Remarketing, as the case may be. The Company will also release this information by means of Bloomberg and Reuters newswire (or any successor or equivalent of such
newswires). 
 (iii) With respect to any Senior Notes which constitute part of Corporate HiMEDS Units which are subject to the Last Failed
Remarketing, the Collateral Agent for the benefit of the Company reserves all of its rights as a secured party with respect thereto and, subject to applicable law and Section 5.04 (e) below, upon instructions from the Company, shall
(A) retain and cancel such Senior Notes or (B) cause the Senior Notes to be sold, in either case, in full satisfaction of the Holders’ obligations under the Purchase Contracts. 
 (c) Following the maturity of the Pledged Treasury Securities underlying the Treasury HiMEDS Units, on the Purchase Contract Settlement Date the
Collateral Agent shall remit to the Company an amount equal to the aggregate Purchase Price applicable to such 

  

 42 

 
Treasury HiMEDS Units, as payment for the Common Stock issuable upon settlement thereof without needing to receive any instructions from the Holders of such
Treasury HiMEDS Units. In the event the payments in respect of the Pledged Treasury Securities underlying a Treasury HiMEDS Unit are in excess of the Purchase Price of the Purchase Contract being settled thereby, the Collateral Agent will distribute
such excess to the Purchase Contract Agent for the benefit of the Holder of such Treasury HiMEDS Unit when received. 
 (d) Any distribution
to Holders of excess funds and interest described in Section 5.02 (b) and (c) above shall be payable at the office of the Purchase Contract Agent in the Borough of Manhattan, New York City, or, if the HiMEDS Units do not remain in
book-entry only form, at the option of the Company, by check mailed to the address of the Person entitled thereto at such Person’s address as it appears on the Register or by wire transfer to the account maintained in the United States
designated by written notice given ten Business Days prior to the applicable payment date by such Person. 
 (e) Notwithstanding anything to
the contrary herein, the obligations of each Holder to pay the Purchase Price are non-recourse obligations and are payable solely out of the proceeds of any Collateral pledged to secure the obligations of the Holders (except to the extent paid by
Cash Settlement, Early Settlement or Merger Early Settlement) and in no event will Holders be liable for any deficiency between such payments and the Purchase Price. 
 (f) Notwithstanding anything to the contrary herein, the Company shall not be obligated to issue any Common Stock in respect of a Purchase Contract or deliver any certificates therefor to the Holder of the related
HiMEDS Unit unless the Company shall have (i) received payment in full of the aggregate Purchase Price for the Common Stock to be purchased thereunder by such Holder in the manner herein set forth or (ii) become entitled to exercise its
rights as a secured party under Section 5.02(b)(iii). 
 (g) The Company agrees to use its commercially reasonable efforts to ensure
that, if required by applicable law, a registration statement with regard to the full amount of the Senior Notes to be remarketed shall be effective with the Securities and Exchange Commission in a form that will enable the Remarketing Agent to rely
on it in connection with such remarketing. 
 Section 5.03. Issuance of Shares of Common Stock. (a) Unless a
Termination Event, an Early Settlement or a Merger Early Settlement shall have occurred, subject to Section 5.04(b), on the Purchase Contract Settlement Date upon receipt of the aggregate Purchase Price payable on all Outstanding HiMEDS Units
or, following the Last Failed Remarketing, upon the Collateral Agent retaining and cancelling the Pledged Senior Notes or selling them as directed by the Company, the Company shall issue and deposit with the Purchase Contract Agent, for the benefit
of the Holders of the Outstanding HiMEDS Units, one or more certificates representing newly issued shares of Common Stock registered in the name of the Purchase Contract Agent (or its nominee) as custodian for the Holders (such certificates for
shares of Common Stock, together with any dividends or distributions for which a record date and payment date for such dividend or distribution has occurred after the Purchase Contract Settlement Date, being hereinafter referred to as the
“Purchase Contract Settlement Fund”) to which the Holders are entitled hereunder. 
  

 43 

 (b) Subject to the foregoing, upon surrender of a Certificate to the Purchase Contract Agent on or after
the Purchase Contract Settlement Date, together with settlement instructions thereon duly completed and executed, the Holder of such Certificate shall be entitled to receive forthwith in exchange therefor a certificate representing that number of
newly issued whole shares of Common Stock which such Holder is entitled to receive pursuant to the provisions of this Article 5 (after taking into account all HiMEDS Units then held by such Holder), together with cash in lieu of fractional shares as
provided in Section 5.08 and any dividends or distributions with respect to such shares constituting part of the Purchase Contract Settlement Fund, but without any interest thereon, and the Certificate so surrendered shall forthwith be
cancelled. Such shares shall be registered in the name of the Holder or the Holder’s designee as specified in the settlement instructions provided by the Holder to the Purchase Contract Agent. If any shares of Common Stock issued in
respect of a Purchase Contract are to be registered to a Person other than the Person in whose name the Certificate evidencing such Purchase Contract is registered (but excluding any Depositary or nominee thereof), no such registration shall be made
unless the Person requesting such registration has paid any transfer and other taxes required by reason of such registration in a name other than that of the registered Holder of the Certificate evidencing such Purchase Contract or has established
to the satisfaction of the Company that such tax either has been paid or is not payable. 
 Section 5.04. Adjustment of Settlement
Rate. (a) The Settlement Rate and the number of shares of Common Stock to be delivered on settlement shall be subject to the following adjustments: 
 (i) Stock Dividends. In case the Company shall pay or make a dividend or other distribution on the Common Stock in Common Stock, each of
the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor, as in effect at the opening of business on the day following the date fixed for the determination of stockholders of the Company entitled to receive such dividend or
other distribution shall be increased by dividing each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor by a fraction of which the numerator shall be the number of shares of Common Stock outstanding at the close
of business on the date fixed for such determination and the denominator shall be the sum of such number of shares and the total number of shares constituting such dividend or other distribution, each such increase to become effective immediately
after the opening of business on the day following the date fixed for such determination. 
 (ii) Stock Purchase Rights. In
case the Company shall issue to all holders of its Common Stock (such issuance not being available on an equivalent basis to Holders of the HiMEDS Units upon settlement of the Purchase Contracts) rights, options, warrants or other securities,
entitling them to subscribe for or purchase shares of Common Stock for a period expiring within 45 days from the date of issuance of such rights, options, warrants or other securities at a price per share of Common Stock less than the Current Market
Price on the date fixed for the determination of stockholders of the Company entitled to receive such rights, options, warrants or securities (other than pursuant to a dividend reinvestment, share purchase or similar plan), each of the Low
Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor in effect at the opening of business on the day following the date fixed for such determination shall be increased by dividing each of the Low Settlement Rate, the 

  

 44 

 
Minimum Settlement Rate and the Anti-dilution Factor by a fraction, the numerator of which shall be the number of shares of Common Stock outstanding at the
close of business on the date fixed for such determination plus the number of shares of Common Stock which the aggregate consideration expected to be received by the Company upon the exercise, conversion or exchange of such rights, options, warrants
or securities (as determined in good faith by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution) would purchase at such Current Market Price and the denominator of which shall be the number of shares
of Common Stock outstanding at the close of business on the date fixed for such determination plus the number of shares of Common Stock so offered for subscription or purchase, either directly or indirectly, each such increase to become effective
immediately after the opening of business on the day following the date fixed for such determination. 
 (iii) Stock Splits;
Reverse Splits; and Combinations. In case outstanding shares of Common Stock shall be subdivided, split or reclassified into a greater number of shares of Common Stock, each of the Low Settlement Rate, the Minimum Settlement Rate and the
Anti-Dilution Factor in effect at the opening of business on the day following the day upon which such subdivision, split or reclassification becomes effective shall be proportionately increased, and, conversely, in case outstanding shares of Common
Stock shall each be combined or reclassified into a smaller number of shares of Common Stock, each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor in effect at the opening of business on the day following the day
upon which such combination or reclassification becomes effective shall be proportionately reduced, such increase or reduction, as the case may be, to become effective immediately after the opening of business on the day following the day upon which
such subdivision, split, reclassification or combination becomes effective. 
 (iv) Debt, Asset or Security Distributions.
(1) In case the Company shall, by dividend or otherwise, distribute to all holders of its Common Stock evidences of its indebtedness, assets or securities (but excluding any rights, options, warrants or other securities referred to in paragraph
(a)(ii) of this Section 5.04, any dividend or distribution paid exclusively in cash referred to in paragraph (a)(v) of this Section 5.04, any dividend, shares of capital stock of any class or series, or similar equity interests, of or
relating to a subsidiary or other business unit in the case of a Spin-Off referred to in the next subparagraph, and any dividend or distribution referred to in paragraph (a)(i) of this Section 5.04), each of the Low Settlement Rate, the Minimum
Settlement Rate and the Anti-Dilution Factor shall be increased by dividing each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor in effect immediately prior to the close of business on the date fixed for the
determination of stockholders of the Company entitled to receive such distribution by a fraction, the numerator of which shall be the Current Market Price on the date fixed for such determination less the then fair market value (as determined in
good faith by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution) of the portion of the assets or evidences of indebtedness so distributed applicable to one share of Common Stock and the denominator
of which shall be such Current Market Price, such adjustment to become effective immediately prior to the opening of business on the day following 

  

 45 

 
the date fixed for the determination of stockholders of the Company entitled to receive such distribution. In any case in which this paragraph (a)(iv)(1) is
applicable, paragraph (a)(iv)(2) of this Section 5.04 shall not be applicable. 
 (2) In the case of a Spin-Off, each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor in effect immediately before the close of business on the record date fixed for determination of
stockholders of the Company entitled to receive that distribution will be increased by dividing each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor by a fraction, the numerator of which is the Current Market
Price and the denominator of which is the Current Market Price plus the Fair Market Value of the portion of those shares of capital stock or similar equity interests so distributed applicable to one share of Common Stock. Any adjustment to the Low
Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor under this paragraph (a)(iv)(2) will occur on the date that is the earlier of (A) the 10th Trading Day from, and including, the effective date of the Spin-Off and (B) the date of the securities being offered in the Initial Public Offering of
the Spin-Off, if that Initial Public Offering is effected simultaneously with the Spin-Off. 
 (v) Cash Distributions. In case
the Company shall, by dividend or otherwise, make distributions to all holders of the Common Stock exclusively in cash during any quarterly period (excluding any cash that is distributed in a Reorganization Event to which Section 5.04(b)
applies or as part of a distribution referred to in paragraph (a)(iv) of this Section 5.04) in an amount in excess of $0.005 per share of Common Stock (the “Reference Dividend”), immediately after the close of business on such
date for determination, the Settlement Rate shall be increased by dividing each of the Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor in effect immediately prior to the close of business on the date fixed for
determination of the stockholders of the Company entitled to receive such distribution by a fraction, the numerator of which shall be equal to the Current Market Price on the date fixed for such determination less the per share amount of the
distribution and the denominator of which shall be equal to the Current Market Price on the date fixed for such determination minus the Reference Dividend. 
 (vi) Tender Offers and Exchange Offers. In the case that a tender or exchange offer made by the Company or any subsidiary of the Company for all or any portion of the Common Stock shall expire and such tender or
exchange offer (as amended through the expiration thereof) shall require the payment to stockholders of the Company (based on the acceptance (up to any maximum specified in the terms of the tender or exchange offer) of Purchased Shares) of an
aggregate consideration having a fair market value (as determined in good faith by the Board of Directors, whose determination shall be conclusive and described in a Board Resolution) per share of the Common Stock that exceeds the closing price of
the Common Stock on the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer, then, immediately prior to the opening of business on the day after the date of the last time (the
“Expiration Time”) tenders could have been made pursuant to such tender or exchange offer (as amended through the expiration thereof), each of the 

  

 46 

 
Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor shall be increased by dividing each of the Low Settlement Rate, the Minimum
Settlement Rate and the Anti-Dilution Factor immediately prior to the close of business on the date of the Expiration Time by a fraction (A) the numerator of which shall be equal to (x) the product of (I) the Current Market Price on
the date of the Expiration Time and (II) the number of shares of Common Stock outstanding (including any tendered shares) on the date of the Expiration Time less (y) the amount of cash plus the fair market value (determined as aforesaid) of the
aggregate consideration payable to stockholders of the Company pursuant to the tender or exchange offer (assuming the acceptance, up to any maximum specified in the terms of the tender or exchange offer, of Purchased Shares), and (B) the
denominator of which shall be equal to the product of (x) the Current Market Price on the date of the Expiration Time and (y) the result of (I) the number of shares of Common Stock outstanding (including any tendered shares) on the
date of the Expiration Time less (II) the number of all shares validly tendered, not withdrawn and accepted for payment on the date of the Expiration Time (such validly tendered shares, up to any such maximum, being referred to as the
“Purchased Shares”). 
 (vii) Calculation of Adjustments. All adjustments to the Low Settlement Rate and the
Minimum Settlement Rate shall be calculated to the nearest 1/10,000th of a share of Common Stock (or if there is not a nearest 1/10,000th of a share to the next lower 1/10,000th of a share). No adjustment in the Low Settlement Rate or the Minimum
Settlement Rate shall be required unless such adjustment would require an increase or decrease of at least one percent therein; provided, that any adjustments which by reason of this subparagraph are not required to be made shall be carried forward
and taken into account in any subsequent adjustment; and provided further that effect shall be given to all anti-dilution adjustments not later than the applicable Settlement Date for a HiMEDS Unit. 
 (viii) Increase of Settlement Rate. The Company may make such increases in the Settlement Rate, in addition to those required by this
Section 5.04(a), as the Board of Directors considers advisable in order to avoid or diminish any income tax to any holders of shares of Common Stock resulting from any dividend or distribution of stock or issuance of rights or warrants to
purchase or subscribe for stock or from any event treated as such for income tax purposes or for any other reasons. 
 (ix) If
the Company hereafter adopts any stockholder rights plan involving the issuance of preference share purchase rights or other similar rights (the “Rights”) to all holders of the Common Stock, a Holder shall be entitled to receive
upon settlement of any Purchase Contract, in addition to the shares of Common Stock issuable upon settlement of such Purchase Contract, the related Rights for the Common Stock, unless such Rights under the future stockholder rights plan have
separated from the Common Stock at the time of conversion, in which case each Settlement Rate shall be adjusted as provided in Section 5.04(a)(iv) on the date such Rights separate from the Common Stock. 
 (b) Adjustment for Consolidation, Merger or Other Reorganization Event. (i) Upon a Reorganization Event, each HiMEDS Unit shall thereafter, in lieu
of a variable number of shares of Common Stock, be converted into Exchange Property Units. An “Exchange 

  

 47 

 
Property Unit” represents the right to receive the kind and amount of securities, cash and other property receivable in such Reorganization Event
(without any interest thereon, and without any right to dividends or distributions thereon which have a record date that is prior to the applicable Settlement Date) per share of Common Stock by a holder of Common Stock that (1) is not a Person
with which the Company consolidated or into which the Company merged or which merged into the Company or to which such sale or transfer was made, as the case may be (any such Person, a “Constituent Person”), or an Affiliate of a
Constituent Person to the extent such Reorganization Event provides for different treatment of Common Stock held by Affiliates of the Company and non-Affiliates. In the event holders of Common Stock have the opportunity to elect the form of
consideration to be received in such transaction, the Exchange Property Unit that Holders of the Corporate HiMEDS Units or Treasury HiMEDS Units would have been entitled to receive will be deemed to be the weighted average of the types and amounts
of consideration received by the holders of Common Stock that affirmatively make an election. If an Exchange Property Unit includes property other than common stock, upon conversion, the Company may elect to deliver additional shares of Common Stock
in lieu of such other property; the number of such additional shares of Common Stock will be equal to the Applicable Market Value of such other property divided by the Applicable Market Value per share of such Common Stock. The Company may only
deliver additional shares of Common Stock in lieu of such other property if the Company provides notice to the Holders of the Company’s election to do so at least three Business Days prior to the first Trading Day that will be included in the
calculation of Applicable Market Value used for purposes of determining the Settlement Rate applicable to such conversion. The Company hereby covenants and agrees to use its reasonable best efforts to cause any such shares of Common Stock delivered
in lieu of such other property on the applicable Settlement Date to be freely transferable under the U.S. Federal securities laws by the recipients thereof upon delivery thereto, including, if necessary, causing one or more registration statements
in respect of such shares of Common Stock to be filed with and declared effective by the Securities and Exchange Commission. 
 In the event
of such a Reorganization Event, the Person formed by such consolidation, or merger or the Person which acquires the assets of the Company shall execute and deliver to the Transfer Agent an agreement supplemental hereto providing that the Holder of
each HiMEDS Unit that remains outstanding after the Reorganization Event (if any) shall have the rights provided by this Section 5.04(b). Such supplemental agreement shall provide for adjustments to the amount of any securities constituting all
or a portion of an Exchange Property Unit which, for events subsequent to the effective date of such Reorganization Event, shall be as nearly equivalent as may be practicable to the adjustments provided for in this Section 5.04. The above
provisions of this Section 5.04(b) shall similarly apply to successive Reorganization Events. 
 (ii) Prior to the Purchase Contract
Settlement Date, if the Company enters into a consolidation, acquisition or merger in which 10% or more of the total consideration paid for the Common Stock consists of cash or cash equivalents (a “Cash Merger”), then following such
Cash Merger a Holder of a HiMEDS Unit will have the right to accelerate and settle (“Merger Early Settlement”) its Purchase Contract, upon the conditions set forth below, at the Settlement Rate in effect immediately prior to the
closing of the Cash Merger, plus an additional make-whole amount of shares (such additional make-whole amount being referred to as the “Make-Whole Share Amount”); provided that no Merger Early Settlement will be permitted
pursuant to this Section 

  

 48 

 
5.04(b)(ii) unless, at the time such Merger Early Settlement is effected, there is an effective Registration Statement with respect to any securities to be
issued and delivered in connection with such Merger Early Settlement, if such a Registration Statement is required (in the view of counsel, which need not be in the form of a written opinion, for the Company) under the Securities Act. If such a
Registration Statement is so required, the Company covenants and agrees to use its commercially reasonable efforts to (x) have in effect a Registration Statement covering any securities to be delivered in respect of the Purchase Contracts being
settled and (y) provide a Prospectus in connection therewith, in each case in a form that may be used in connection with such Merger Early Settlement. In the event that a Holder seeks to exercise its Merger Early Settlement right and a
Registration Statement is required to be effective in connection with the exercise of such right but no such Registration Statement is then effective, the Holder’s exercise of such right shall be void unless and until such a Registration
Statement shall be effective and the Company shall have no further obligation with respect to any such Registration Statement if, notwithstanding using its commercially reasonable efforts, no Registration Statement is then effective. 
 If a Holder elects a Merger Early Settlement of some or all of its Purchase Contracts, such Holder shall be entitled to receive, on the Merger Early
Settlement Date, the aggregate amount of any accrued and unpaid Contract Adjustment Payments including and any Deferred Contract Adjustment Payments, with respect to such Purchase Contracts. The Company shall pay such amount as a credit against
the amount otherwise payable by such Holder to effect such Merger Early Settlement. 
 Within five Business Days of the completion of a Cash
Merger, the Company shall provide written notice to Holders of HiMEDS Units of such completion of a Cash Merger, which shall specify (1) the deadline for submitting the notice to settle early in cash pursuant to this Section 5.04(b)(ii)
and how and where such notice to settle early should be delivered, (2) the date on which such Merger Early Settlement shall occur (which date shall be the earlier of 21 Business Days after the date of such notice or two Business Days prior to
the Remarketing Date) (the “Merger Early Settlement Date”), (3) the amount of cash payable in respect of the exercise of such Merger Early Settlement (giving effect to the credit for any accrued and unpaid Contract Adjustment
Payments including and any Deferred Contract Adjustment Payments as provided in the preceding paragraph), (4) the applicable Settlement Rate, (5) the Make-Whole Share Amount and (6) the amount (per share of Common Stock) of cash,
securities and other consideration receivable by the Holder, including any amount of Contract Adjustment Payments and Deferred Contract Adjustment Payments receivable, upon settlement. 
 Corporate HiMEDS Units Holders and Treasury HiMEDS Units Holders may only effect Merger Early Settlement pursuant to this Section 5.04(b)(ii) in
integral multiples of 20 Corporate HiMEDS Units or Treasury HiMEDS Units, as the case may be. Other than the provisions relating to timing of notice and settlement, which shall be as set forth above, the provisions of Section 5.01 shall
apply with respect to a Merger Early Settlement pursuant to this Section 5.04(b)(ii).
 In order to exercise the right to effect Merger
Early Settlement with respect to any Purchase Contracts, the Holder of the Certificate evidencing HiMEDS Units shall deliver, no later than 4:00 p.m., New York City time, on the Business Day immediately 

  

 49 

 
preceding the Merger Early Settlement Date, such Certificate to the Purchase Contract Agent at the Corporate Trust Office duly endorsed for transfer to the
Company or in blank with the form of Election to Settle Early on the reverse thereof duly completed and accompanied by payment (payable to the Company in immediately available funds) in an amount equal to the sum of: 
 (i) product of (A) the Stated Amount times (B) the number of Purchase Contracts with respect to which the Holder has elected to
effect Merger Early Settlement, less  
 (ii) the amount of any accrued and unpaid Contract Adjustment Payments and any
Deferred Contract Adjustment Payments (excluding, if the Merger Early Settlement occurs after the Record Date for such Contract Adjustment Payments or Deferred Contract Adjustment Payments, the amount of such payments to be made on the Payment Date
immediately succeeding such Record Date).
 In the event that HiMEDS Units are held by or through DTC or another Depositary, the exercise of the right to
effect Merger Early Settlement shall occur in conformity with the procedures established by DTC or such Depositary. 
 Upon receipt of any
such Certificate and payment of such funds, the Purchase Contract Agent shall pay the Company from such funds the related Purchase Price pursuant to the terms of the related Purchase Contracts, and notify the Collateral Agent that all the conditions
necessary for a Merger Early Settlement by a Holder of HiMEDS Units have been satisfied pursuant to which the Purchase Contract Agent has received from such Holder, and paid to the Company as confirmed in writing by the Company, the related Purchase
Price. 
 Upon receipt by the Collateral Agent of the notice from the Purchase Contract Agent set forth in the preceding paragraph, the
Collateral Agent shall release from the Pledge, (1) the Pledged Senior Notes, in the case of a Holder of Corporate HiMEDS Units or (2) Pledged Treasury Securities, in the case of a Holder of Treasury HiMEDS Units, in each case with a Value
equal to the product of (x) the Stated Amount times (y) the number of Purchase Contracts as to which such Holder has elected to effect Merger Early Settlement, and shall instruct the Securities Intermediary to Transfer all such Pledged
Senior Notes or Pledged Treasury Securities, as the case may be, to the Purchase Contract Agent for distribution to such Holder, in each case free and clear of the Pledge created hereby. 
 If a Holder properly effects an effective Merger Early Settlement in accordance with the provisions of this Section 5.04(b)(ii), the Company will
deliver (or will cause the Collateral Agent to deliver) to the Holder on the Merger Early Settlement Date: 
 (A) the kind and
amount of securities, cash and other property receivable upon such Cash Merger by a Holder of the number of shares of Common Stock issuable on account of each Purchase Contract if the Purchase Contract Settlement Date had occurred immediately prior
to such Cash Merger (based on the Settlement Rate in effect at such time plus the Make-Whole Share Amount), assuming such Holder of Common Stock is not a Constituent Person or an Affiliate of a 

  

 50 

 
Constituent Person to the extent such Cash Merger provides for different treatment of Common Stock held by Affiliates of the Company and non-affiliates. In
the event holders of Common Stock have the opportunity to elect the form of consideration to be received in the Cash Merger, the kind and amount of securities, cash and other property receivable by Holders of the Corporate HiMEDS Units or Treasury
HiMEDS Units exercising their Merger Early Settlement right will be deemed to be the weighted average of the types and amounts of consideration received by the holders of Common Stock that affirmatively make an election. For the avoidance of doubt,
for the purposes of determining the Applicable Market Value (in connection with determining the appropriate Settlement Rate to be applied in the foregoing sentence), the date of the closing of the Cash Merger shall be deemed to be the Purchase
Contract Settlement Date; 
 (B) the Senior Notes or Treasury Securities, as the case may be, related to the Purchase
Contracts with respect to which the Holder is effecting a Merger Early Settlement; 
 (C) any accrued and unpaid Contract
Adjustment Payments (to the extent such payments are not offset to settle the Purchase Contracts); and 
 (D) if so required
under the Securities Act, a Prospectus as contemplated by this Section 5.04(b)(ii). 
 The Corporate HiMEDS Units or the Treasury HiMEDS
Units of the Holders who do not elect Merger Early Settlement in accordance Section 5.04(b)(ii) will continue to remain outstanding and be subject to settlement on the Purchase Contract Settlement Date in accordance with the terms hereof.

 (iii) The number of make-whole shares applicable to a Merger Early Settlement will be determined by reference to the table below, based on
the date on which the Cash Merger becomes effective (the “Effective Date”) and the price (the “Stock Price”) paid per share for Common Stock in such Cash Merger. If holders of Common Stock receive only cash in such
transaction, the Stock Price paid per share will be the cash amount paid per share. Otherwise, the Stock Price paid per share will be the average of the Closing Sale Prices of the Common Stock on the five Trading Days prior to, but not including,
the Effective Date of such Cash Merger. 
  

 51 

																															
	 	  	Stock Price on Effective Date
		  	$	23.40	  	$	25.74	  	$	28.08	  	$	30.42	  	$	32.76	  	$	35.10	  	$	46.80	  	$	70.20	  	$	93.60	  	$	117.00
		  	 	 	  	 	 	  	 	 	  	 	 	  	 	 	  	 	 	  	 	 	  	 	 	  	 	 	  	 	 
											
	 Effective Date
	  	 	  	 	  	 	  	 	  	 	  	 	  	 	  	 	  	 	  	 
	 April 25, 2007......
	  	 	0.0000	  	 	0.2220	  	 	0.3424	  	 	0.4471	  	 	0.5399	  	 	0.4806	  	 	0.2997	  	 	0.1696	  	 	0.1217	  	 	0.0962
											
	 May 17, 2008......
	  	 	0.0000	  	 	0.1216	  	 	0.2400	  	 	0.3439	  	 	0.4371	  	 	0.3793	  	 	0.2155	  	 	0.1173	  	 	0.0850	  	 	0.0676
											
	 May 17, 2009......
	  	 	0.0000	  	 	0.0110	  	 	0.1142	  	 	0.2067	  	 	0.2930	  	 	0.2329	  	 	0.0926	  	 	0.0447	  	 	0.0330	  	 	0.0263
											
	 May 17, 2010......
	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000	  	 	0.0000

 The Stock Prices set forth in the first row of the table (i.e., the column headers) will be
adjusted upon the occurrence of certain events requiring anti-dilution adjustments to the Low Settlement Rate, Minimum Settlement Rate and Anti-Dilution Factor pursuant to Section 5.04(a). The adjusted Stock Prices will equal the Stock Prices
divided by the Anti-Dilution Factor. In no circumstances will the total shares deliverable (i.e., the sum of the applicable Settlement Rate in effect immediately prior to the Effective Date plus the Make-Whole Share Amount) exceed the Low Settlement
Rate, as adjusted, then in effect. 
 Each of the Make-Whole Share Amounts set forth in the table will be subject to adjustment in the same
manner as the Minimum Settlement Rate as set forth in Section 5.04(a). 
 In the event that the Stock Price and Effective Date
applicable to a Cash Merger is not expressly set forth on the table, then the Make-Whole Share Amount will be determined as follows: 
 (1) if the Stock Price is between two Stock Price amounts on the table or the Effective Date is between two dates on the table, the Make-Whole Share Amount will be determined by straight-line interpolation between the Make-Whole Share
Amounts set forth for the higher and lower Stock Price amounts and the two dates, as applicable, based on a 365-day year; 
 (2) if the Stock Price is in excess of $117.00 per share (subject to adjustment as described above), then the Make-Whole Share Amount will be zero; and 
 (3) if the Stock Price is less than of $23.40 per share (subject to adjustment as described above), then the Make-Whole Share Amount will
be zero. 
 (c) No adjustment to the Settlement Rate need be made if Holders may participate in the transaction that would otherwise give
rise to an adjustment, so long as the distributed assets or securities the Holders would receive upon settlement of HiMEDS Units, if convertible, exchangeable, or exercisable, are convertible, exchangeable or exercisable, as applicable, without any
loss of rights or privileges for a period of at least 45 days following settlement of the HiMEDS Units. 
  

 52 

 (d) The Low Settlement Rate, the Minimum Settlement Rate and the Anti-Dilution Factor shall not be
adjusted: 
  

	 	(2)	upon the issuance of any shares of Common Stock pursuant to any present or future plan providing for the reinvestment of dividends or interest payable on the Company’s
securities and the investment of additional optional amounts in shares of Common Stock under any plan; 

  

	 	(3)	upon the issuance of any shares of Common Stock or options or rights to purchase those shares pursuant to any present or future employee, director or consultant benefit plan or
program of or assumed by the Company or any of its subsidiaries; 

  

	 	(4)	upon the issuance of any shares of Common Stock pursuant to any option, warrant, right or exercisable, exchangeable or convertible security outstanding as of the date the HiMEDS
Units were first issued; 

  

	 	(5)	for a change in the par value or no par value of the Common Stock; or 

  

	 	(6)	for accumulated and unpaid dividends, other than to the extent contemplated by Section 5.04(a) hereof. 

 (e) Promptly after the calculation of the Settlement Rate, the Company shall give the Purchase Contract Agent notice thereof accompanied by an
Officers’ Certificate setting forth the bases for the calculation in reasonable detail. All calculations and determinations of the Settlement Rate shall be made by the Company or its agent based on their good faith calculations and the Purchase
Contract Agent shall bear no responsibility with respect thereto. 
 Section 5.05. Notice of Adjustments and Certain Other
Events. (a) Whenever the Low Settlement Rate, the Minimum Settlement Rate or the Anti-Dilution Factor are adjusted as herein provided, the Company shall within 10 Business Days following the occurrence of an event that requires
such adjustment pursuant to Section 5.04 (or if the Company is not aware of such occurrence, as soon as practicable after becoming so aware): 
 (i) compute each adjusted Low Settlement Rate, the Minimum Settlement Rate or the Anti-Dilution Factor in accordance with Section 5.04 and prepare and transmit to the Purchase Contract Agent an Officers’
Certificate setting forth such adjusted Low Settlement Rate, the Minimum Settlement Rate or the Anti-Dilution Factor, the method of calculation thereof in reasonable detail, and the facts requiring such adjustment and upon which such adjustment is
based; and
 (ii) provide a written notice to the Holders of the HiMEDS Units of the occurrence of such event and a statement
in reasonable detail setting forth the method by which the adjustment to the Low Settlement Rate, the Minimum Settlement Rate or the Anti-Dilution Factor was determined and setting forth each adjusted Low Settlement Rate, the Minimum Settlement Rate
or the Anti-Dilution Factor. 
 (b) The Purchase Contract Agent shall not at any time be under any duty or responsibility to any Holder of
HiMEDS Units to determine whether any facts exist which may require any adjustment of the Low Settlement Rate, the Minimum Settlement Rate or 

  

 53 

 
the Anti-Dilution Factor, or with respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed in
making the same. The Purchase Contract Agent shall be fully authorized and protected in relying on any Officers’ Certificate delivered pursuant to Section 5.05(a)(i) and any adjustment contained therein and the Purchase Contract Agent
shall not be deemed to have knowledge of any adjustment unless and until it has received such certificate. The Purchase Contract Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common
Stock, or of any securities or property, which may at the time be issued or delivered with respect to any Purchase Contract; and the Purchase Contract Agent makes no representation with respect thereto. The Purchase Contract Agent shall not be
responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock pursuant to a Purchase Contract or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article.

 Section 5.06. Termination Event; Notice. The Purchase Contracts and all obligations and rights of the Company and
the Holders thereunder, including, without limitation, the rights of the Holders to receive and the obligation of the Company to pay any Contract Adjustment Payments (including any accrued and unpaid Contract Adjustment Payments and any Deferred
Contract Adjustment Payments), and the rights and obligations of Holders to purchase Common Stock, shall immediately and automatically terminate, without the necessity of any notice or action by any Holder, the Purchase Contract Agent or the
Company, if, prior to or on the Purchase Contract Settlement Date, a Termination Event shall have occurred. 
 Upon and after the occurrence
of a Termination Event, the HiMEDS Units shall thereafter represent the right to receive the Senior Notes or the Treasury Securities, as the case may be, forming part of such Units, in accordance with the provisions of Section 3.15
hereof. Upon the occurrence of a Termination Event, the Company shall promptly but in no event later than two Business Days thereafter give written notice to the Purchase Contract Agent, the Collateral Agent and the Holders, at their addresses
as they appear in the Security Register. 
 Section 5.07. Early Settlement. (a) Subject to and upon compliance with the
provisions of this Section 5.07 and the last sentence of this Section 5.07(a), at the option of the Holder thereof, Purchase Contracts underlying HiMEDS Units may be settled early (“Early Settlement”) at any time prior to
4:00 p.m., New York City time, on the Business Day immediately preceding the first scheduled Trading Day of the Observation Period; provided that no Early Settlement will be permitted pursuant to this Section 5.07 unless, at the time such Early
Settlement is effected, there is an effective Registration Statement with respect to any securities to be issued and delivered in connection with such Early Settlement, if such a Registration Statement is required (in the view of counsel, which need
not be in the form of a written opinion, for the Company) under the Securities Act. In the event that a Holder seeks to exercise its rights to early settle Purchase Contracts and a Registration Statement is required to be effective in
connection with the exercise of such right but no such Registration Statement is then effective, the Holder’s exercise of such right shall be void unless and until such a Registration Statement shall be effective. If such a Registration
Statement is so required, the Company covenants and agrees to use commercially reasonable efforts to (i) have in effect a Registration Statement covering any securities to be delivered in respect of the Purchase Contracts being settled and
(ii) provide a Prospectus in connection therewith, in each case in a form that may be used in connection with such Early Settlement. The Company shall have no further obligation with respect to any such Registration Statement if,
notwithstanding using its commercially reasonable efforts, no Registration Statement is then effective. 
  

 54 

 (b) In order to exercise the right to effect Early Settlement with respect to any Purchase Contracts, the
Holder of the Certificate evidencing HiMEDS Units shall deliver, at any time prior to 4:00 p.m., New York City time, on the Business Day immediately preceding the first scheduled Trading Day of the Observation Period, such Certificate to the
Purchase Contract Agent at the Corporate Trust Office duly endorsed for transfer to the Company or in blank with the form of Election to Settle Early on the reverse thereof duly completed and accompanied by payment (payable to the Company in
immediately available funds) in an amount (the “Early Settlement Amount”) equal to the sum of: 
 (i) the
product of (A) the Stated Amount times (B) the number of Purchase Contracts with respect to which the Holder has elected to effect Early Settlement, plus 
 (ii) if such delivery is made with respect to any Purchase Contracts during the period from the close of business on any Record Date next
preceding any Payment Date to the opening of business on such Payment Date, an amount equal to the Contract Adjustment Payments payable on such Payment Date with respect to such Purchase Contracts, minus 
 (iii) the amount of any Deferred Contract Adjustment Payments. 
 Except as provided in the immediately preceding sentence, no payment shall be made upon Early Settlement of any Purchase Contract on account of any
Contract Adjustment Payments accrued on such Purchase Contract or on account of any dividends on the Common Stock issued upon such Early Settlement. If the foregoing requirements are first satisfied with respect to Purchase Contracts underlying
any HiMEDS Units at or prior to 4:00 p.m., New York City time, on a Business Day, such day shall be the “Early Settlement Date” with respect to such HiMEDS Units and if such requirements are first satisfied after 4:00 p.m., New York
City time, on a Business Day or on a day that is not a Business Day, the “Early Settlement Date” with respect to such HiMEDS Units shall be the next succeeding Business Day. 
 Upon the receipt of such Certificate and Early Settlement Amount from the Holder, the Purchase Contract Agent shall pay to the Company such Early
Settlement Amount, the receipt of which payment the Company shall confirm in writing. The Purchase Contract Agent shall then notify the Collateral Agent that (A) such Holder has elected to effect an Early Settlement, which notice shall set
forth the number of such Purchase Contracts as to which such Holder has elected to effect Early Settlement, (B) the Purchase Contract Agent has received from such Holder, and paid to the Company as confirmed in writing by the Company, the
related Early Settlement Amount and (C) all conditions to such Early Settlement have been satisfied. 
 Upon receipt by the Collateral
Agent of the notice from the Purchase Contract Agent set forth in the preceding paragraph, the Collateral Agent shall release from the Pledge, (1) the Pledged Senior Notes, in the case of a Holder of Corporate HiMEDS Units or (2) Pledged
Treasury Securities, in the case of a Holder of Treasury HiMEDS Units, in each case with a Value equal to the product of 

  

 55 

 
(x) the Stated Amount times (y) the number of Purchase Contracts as to which such Holder has elected to effect Early Settlement, and shall instruct
the Securities Intermediary to Transfer all such Pledged Senior Notes or Pledged Treasury Securities, as the case may be, to the Purchase Contract Agent for distribution to such Holder, in each case free and clear of the Pledge created hereby.

 Holders of HiMEDS Units may only effect Early Settlement pursuant to this Section 5.07 in integral multiples of 20 HiMEDS
Units.
 Upon Early Settlement of the Purchase Contracts, the rights of the Holders to receive and the obligation of the Company to pay any
Contract Adjustment Payments (including any accrued and unpaid Contract Adjustment Payments) with respect to such Purchase Contracts shall immediately and automatically terminate. 
 (c) Upon Early Settlement of Purchase Contracts by a Holder of the related HiMEDS Units, the Company shall issue, and the Holder shall be entitled to
receive, a number of shares of Common Stock (or in the case of an Early Settlement following a Reorganization Event, a number of units of Exchange Property) equal to the Minimum Settlement Rate for each Purchase Contract as to which Early Settlement
is effected.
 (d) No later than the third Business Day after the applicable Early Settlement Date, the Company shall cause the shares of
Common Stock issuable upon Early Settlement of Purchase Contracts to be issued and delivered, together with payment in lieu of any fraction of a share, as provided in Section 5.08. 
 (e) Upon Early Settlement of any Purchase Contracts, and subject to receipt of shares of Common Stock from the Company and the Senior Notes or Treasury
Securities, as the case may be, from the Securities Intermediary, as applicable, the Purchase Contract Agent shall, in accordance with the instructions provided by the Holder thereof on the applicable form of Election to Settle Early on the reverse
of the Certificate evidencing the related HiMEDS Units: 
 (i) transfer to the Holder the Senior Notes or Treasury Securities,
as the case may be, forming a part of such HiMEDS Units, and 
 (ii) deliver to the Holder a certificate or certificates for
the full number of shares of Common Stock issuable upon such Early Settlement, together with payment in lieu of any fraction of a share, as provided in Section 5.08, and 
 (f) The Company shall, if so required under the Securities Act, deliver a Prospectus for the shares of Common Stock issuable upon such Early Settlement
as contemplated by Section 5.07(a). 
 (g) In the event that Early Settlement is effected with respect to Purchase Contracts underlying
less than all the HiMEDS Units evidenced by a Certificate, upon such Early Settlement the Company shall execute and the Purchase Contract Agent shall execute on behalf of the Holder, authenticate and deliver to the Holder thereof, at the expense of
the Company, a Certificate evidencing the HiMEDS Units as to which Early Settlement was not effected. 
  

 56 

 (h) A Holder of a HiMEDS Unit who effects Early Settlement may elect to have the Senior Notes no longer a
part of a Corporate HiMEDS Unit remarketed in accordance with the provisions of Section 5.02. 
 Section 5.08. No Fractional
Shares. No fractional shares or scrip representing fractional shares of Common Stock shall be issued or delivered upon settlement on the Purchase Contract Settlement Date, or upon Early Settlement or Merger Early Settlement of any
Purchase Contracts. If Certificates evidencing more than one Purchase Contract shall be surrendered for settlement at one time by the same Holder, the number of full shares of Common Stock which shall be delivered upon settlement shall be
computed on the basis of the aggregate number of Purchase Contracts evidenced by the Certificates so surrendered. Instead of any fractional share of Common Stock which would otherwise be deliverable upon settlement of any Purchase Contracts on
the Purchase Contract Settlement Date, or upon Early Settlement or Merger Early Settlement, the Company, through the Purchase Contract Agent, shall make a cash payment in respect of such fractional interest in an amount equal to the percentage of
such fractional share times the Applicable Market Value calculated as if the date of such settlement were the Purchase Contract Settlement Date. The Company shall provide the Purchase Contract Agent from time to time with sufficient funds to
permit the Purchase Contract Agent to make all cash payments required by this Section 5.08 in a timely manner. 
 Section 5.09.
Charges and Taxes. The Company will pay all stock transfer and similar taxes attributable to the initial issuance and delivery of the shares of Common Stock pursuant to the Purchase Contracts; provided, however, that the Company
shall not be required to pay any such tax or taxes which may be payable in respect of any exchange of or substitution for a Certificate evidencing a HiMEDS Unit or any issuance of a share of Common Stock in a name other than that of the registered
Holder of a Certificate surrendered in respect of the HiMEDS Units evidenced thereby, other than in the name of the Purchase Contract Agent, as custodian for such Holder, and the Company shall not be required to issue or deliver such share
certificates or Certificates unless or until the Person or Persons requesting the transfer or issuance thereof shall have paid to the Company the amount of such tax or shall have established to the satisfaction of the Company that such tax has been
paid. 
 Section 5.10. Contract Adjustment Payments. (a) Subject to Section 5.10(d) and 5.11, the Company shall
pay, on each Payment Date, the Contract Adjustment Payments payable in respect of each Purchase Contract to the Person in whose name a Certificate is registered at the close of business on the Record Date relating to such Payment Date. The
Contract Adjustment Payments will be payable at the office of the Purchase Contract Agent in the Borough of Manhattan, New York City maintained for that purpose. If the book-entry system for the HiMEDS Units has been terminated, the Contract
Adjustment Payments will be payable, at the option of the Company, by check mailed to the address of the Person entitled thereto at such Person’s address as it appears on the Security Register, or by wire transfer to the account designated by
such Person by a prior written notice to the Purchase Contract Agent. If any date on which Contract Adjustment Payments are to be made is not a Business Day, then payment of the Contract Adjustment Payments payable on such date will be made on
the next succeeding day that is a Business Day (and without any interest in respect of any such delay); provided that if such Business Day is in the next succeeding calendar year, then payment of the Contract Adjustment Payments will be made on the
Business Day immediately preceding such Business Day, in each case, with the same force and effect as if made on such scheduled Payment Date. Contract Adjustment Payments payable for any period will be computed on the basis of a 360-day year of
twelve 30-day months. The Contract Adjustment Payments will accrue from April 25, 2007. 
  

 57 

 (b) Upon the occurrence of a Termination Event, the Company’s obligation to pay future Contract
Adjustment Payments (including any accrued Contract Adjustment Payments) and any Deferred Contract Adjustment Payments shall cease. 
 (c)
Each Certificate delivered under this Agreement upon registration of transfer of or in exchange for or in lieu of (including as a result of a Collateral Substitution or the recreation of Corporate HiMEDS Units) any other Certificate shall carry the
right to accrued and unpaid Contract Adjustment Payments and Deferred Contract Adjustment Payments, which right was carried by the Purchase Contracts underlying such other Certificates. 
 (d) In the case of any HiMEDS Unit with respect to which Early Settlement or Merger Early Settlement of the underlying Purchase Contract is effected on a
date that is after any Record Date and prior to or on the next succeeding Payment Date, Contract Adjustment Payments and Deferred Contract Adjustment Payments otherwise payable on such Payment Date shall be payable on such Payment Date
notwithstanding such Early Settlement or Merger Early Settlement, and such Contract Adjustment Payments and Deferred Contract Adjustment Payments shall be paid to the Person in whose name the Certificate evidencing such HiMEDS Unit is registered at
the close of business on such Record Date. Except as otherwise expressly provided in the immediately preceding sentence, and the right to receive accrued and unpaid Contract Adjustment Payments as set forth in Section 5.04(b)(ii), in the
case of any HiMEDS Unit with respect to which Early Settlement or Merger Early Settlement of the underlying Purchase Contract is effected, Contract Adjustment Payments (but not, for the avoidance of doubt, Deferred Contract Adjustment Payments) that
would otherwise be payable after the Early Settlement or Merger Early Settlement Date with respect to such Purchase Contract shall not be payable. 
 (e) The Company’s obligations with respect to Contract Adjustment Payments and Deferred Contract Adjustment Payments, if any, will be subordinated and junior in right of payment to the Company’s obligations under any Senior
Indebtedness. 
 (f) In the event (x) of any payment by, or distribution of assets of, the Company of any kind or character, whether in
cash, property or securities, to creditors upon any dissolution, winding-up, liquidation or reorganization of the Company, whether voluntary or involuntary or in bankruptcy, insolvency, receivership or other proceedings, or (y) subject to the
provisions of Section 5.10(h) below, that (i) a default shall have occurred and be continuing with respect to the payment of principal, interest or any other monetary amounts due and payable on any Senior Indebtedness and such default
shall have continued beyond the period of grace, if any, specified in the instrument evidencing such Senior Indebtedness (and the Purchase Contract Agent shall have received written notice thereof from the Company or one or more holders of Senior
Indebtedness or their representative or representatives or the trustee or trustees under any indenture pursuant to which any such Senior Indebtedness may have been issued), or (ii) the maturity of any Senior Indebtedness shall have been
accelerated because of a default in respect of such Senior Indebtedness (and the Purchase Contract 

  

 58 

 
Agent shall have received written notice thereof from the Company or one or more holders of Senior Indebtedness or their representative or representatives or
the trustee or trustees under any indenture pursuant to which any such Senior Indebtedness may have been issued), then: 
 (i)
the holders of all Senior Indebtedness shall first be entitled to receive, in the case of clause (x) above, payment of all amounts due or to become due upon all Senior Indebtedness and, in the case of subclauses (i) and (ii) of clause
(y) above, payment of all amounts due thereon, or provision shall be made for such payment in money or money’s worth, before the Holders of any of the HiMEDS Units are entitled to receive any Contract Adjustment Payments or Deferred
Contract Adjustment Payments on the Purchase Contracts underlying the HiMEDS Units; 
 (ii) any payment by, or distribution of
assets of, the Company of any kind or character, whether in cash, property or securities, to which the Holders of any of the HiMEDS Units would be entitled except for the provisions of Section 5.10(e) through (q), including any such payment or
distribution which may be payable or deliverable by reason of the payment of any other indebtedness of the Company being subordinated to the payment of such Contract Adjustment Payments or Deferred Contract Adjustment Payments on the Purchase
Contracts underlying the HiMEDS Units, shall be paid or delivered by the Person making such payment or distribution, whether a trustee in bankruptcy, a receiver or liquidating trustee or otherwise, directly to the representative or representatives
of the holders of Senior Indebtedness or to the trustee or trustees under any indenture under which any instruments evidencing any of such Senior Indebtedness may have been issued, ratably according to the aggregate amounts remaining unpaid on
account of such Senior Indebtedness held or represented by each, to the extent necessary to make payment in full of all Senior Indebtedness remaining unpaid after giving effect to any concurrent payment or distribution (or provision therefor) to the
holders of such Senior Indebtedness, before any payment or distribution is made of such Contract Adjustment Payments or Deferred Contract Adjustment Payments to the Holders of such HiMEDS Units; and 
 (iii) in the event that, notwithstanding the foregoing, any payment by, or distribution of assets of, the Company of any kind or
character, whether in cash, property or securities, including any such payment or distribution which may be payable or deliverable by reason of the payment of any other indebtedness of the Company being subordinated to the payment of Contract
Adjustment Payments or Deferred Contract Adjustment Payments on the Purchase Contracts underlying the HiMEDS Units, shall be received by the Purchase Contract Agent or the Holders of any of the HiMEDS Units when such payment or distribution is
prohibited pursuant to Section 5.10(e) through (q), such payment or distribution shall be paid over to the representative or representatives of the holders of Senior Indebtedness or to the trustee or trustees under any indenture pursuant to
which any instruments evidencing any such Senior Indebtedness may have been issued, ratably as aforesaid, for application to the payment of all Senior Indebtedness remaining unpaid until all such Senior Indebtedness shall have been paid in full,
after giving effect to any concurrent payment or distribution (or provision therefor) to the holders of such Senior Indebtedness. 
  

 59 

 (g) For purposes of Section 5.10(e) through (q), the words “cash, property or securities”
shall not be deemed to include shares of stock of the Company as reorganized or readjusted, or securities of the Company or any other Person provided for by a plan of reorganization or readjustment, the payment of which is subordinated at least to
the extent provided in Section 5.10(e) through (q) with respect to such Contract Adjustment Payments or Deferred Contract Adjustment Payments on the HiMEDS Units to the payment of all Senior Indebtedness which may at the time be
outstanding; provided that (i) the indebtedness or guarantee of indebtedness, as the case may be, that constitutes Senior Indebtedness is assumed by the Person, if any, resulting from any such reorganization or readjustment, and
(ii) the rights of the holders of the Senior Indebtedness are not, without the consent of each such holder adversely affected thereby, altered by such reorganization or readjustment; 
 (h) Any failure by the Company to make any payment on or perform any other obligation under Senior Indebtedness, other than any indebtedness incurred by
the Company or assumed or guaranteed, directly or indirectly, by the Company for money borrowed (or any deferral, renewal, extension or refunding thereof) or any indebtedness or obligation as to which the provisions of Section 5.10(e) through
(q) shall have been waived by the Company in the instrument or instruments by which the Company incurred, assumed, guaranteed or otherwise created such indebtedness or obligation, shall not be deemed a default or event of default if
(i) the Company shall be disputing its obligation to make such payment or perform such obligation and (ii) either (A) no final judgment relating to such dispute shall have been issued against the Company which is in full force and
effect and is not subject to further review, including a judgment that has become final by reason of the expiration of the time within which a party may seek further appeal or review, and (B) in the event a judgment that is subject to further
review or appeal has been issued, the Company shall in good faith be prosecuting an appeal or other proceeding for review and a stay of execution shall have been obtained pending such appeal or review. 
 (i) Subject to the irrevocable payment in full of all Senior Indebtedness, the Holders of the HiMEDS Units shall be subrogated (equally and ratably with
the holders of all obligations of the Company which by their express terms are subordinated to Senior Indebtedness of the Company to the same extent as payment of the Contract Adjustment Payments and Deferred Contract Adjustment Payments in respect
of the Purchase Contracts underlying the HiMEDS Units is subordinated and which are entitled to like rights of subrogation) to the rights of the holders of Senior Indebtedness to receive payments or distributions of cash, property or securities of
the Company applicable to the Senior Indebtedness until all such Contract Adjustment Payments and Deferred Contract Adjustment Payments owing on the HiMEDS Units shall be paid in full, and as between the Company, its creditors other than holders of
such Senior Indebtedness and the Holders, no such payment or distribution made to the holders of Senior Indebtedness by virtue of Section 5.10(e) through (q) that otherwise would have been made to the Holders shall be deemed to be a
payment by the Company on account of such Senior Indebtedness, it being understood that the provisions of Section 5.10(e) through (q) are and are intended solely for the purpose of defining the relative rights of the Holders, on the one
hand, and the holders of Senior Indebtedness, on the other hand. 
 (j) Nothing contained in Section 5.10(e) through (q) or
elsewhere in this Agreement or in the HiMEDS Units is intended to or shall impair, as among the Company, its creditors other than the holders of Senior Indebtedness and the Holders, the obligation of the 

  

 60 

 
Company, which is absolute and unconditional, to pay to the Holders such Contract Adjustment Payments and Deferred Contract Adjustment Payments on the HiMEDS
Units as and when the same shall become due and payable in accordance with their terms, or is intended to or shall affect the relative rights of the Holders and creditors of the Company other than the holders of Senior Indebtedness, nor shall
anything herein or therein prevent the Purchase Contract Agent or any Holder from exercising all remedies otherwise permitted by applicable law upon default under this Agreement, subject to the rights, if any, under Section 5.10(e) through (q),
of the holders of Senior Indebtedness in respect of cash, property or securities of the Company received upon the exercise of any such remedy. 
 (k) Upon payment or distribution of assets of the Company referred to in Section 5.10(e) through (q), the Purchase Contract Agent and the Holders shall be entitled to rely upon any order or decree made by any court of competent
jurisdiction in which any such dissolution, winding up, liquidation or reorganization proceeding affecting the affairs of the Company is pending or upon a certificate of the trustee in bankruptcy, receiver, assignee for the benefit of creditors,
liquidating trustee or Purchase Contract Agent or other person making any payment or distribution, delivered to the Purchase Contract Agent or to the Holders, for the purpose of ascertaining the Persons entitled to participate in such payment or
distribution, the holders of the Senior Indebtedness and other indebtedness of the Company, the amount thereof or payable thereon, the amount or amounts paid or distributed thereon and all other facts pertinent thereto or to these
Section 5.10(e) through (q). 
 (l) The Purchase Contract Agent shall be entitled to rely on the delivery to it of a written notice by a
Person representing himself to be a holder of Senior Indebtedness (or a trustee or representative on behalf of such holder) to establish that such notice has been given by a holder of Senior Indebtedness or a trustee or representative on behalf of
any such holder or holders. In the event that the Purchase Contract Agent determines in good faith that further evidence is required with respect to the right of any Person as a holder of Senior Indebtedness to participate in any payment or
distribution pursuant to Section 5.10(e) through (q), the Purchase Contract Agent may request such Person to furnish evidence to the reasonable satisfaction of the Purchase Contract Agent as to the amount of Senior Indebtedness held by such
Person, the extent to which such Person is entitled to participate in such payment or distribution and any other facts pertinent to the rights of such Person under Section 5.10(e) through (q), and, if such evidence is not furnished, the
Purchase Contract Agent may defer payment to such Person pending judicial determination as to the right of such Person to receive such payment. 
 (m) Nothing contained in Section 5.10(e) through (q) shall affect the obligations of the Company to make, or prevent the Company from making, payment of the Contract Adjustment Payments and Deferred Contract Adjustment Payments,
except as otherwise provided in these Section 5.10(e) through (q). 
 (n) Each Holder of HiMEDS Units, by its acceptance thereof,
authorizes and directs the Purchase Contract Agent on its behalf to take such action as may be necessary or appropriate to effectuate the subordination provided in Section 5.10(e) through (q) and appoints the Purchase Contract Agent its
attorney-in-fact, as the case may be, for any and all such purposes. 
  

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 (o) The Company shall give prompt written notice to the Purchase Contract Agent of any fact known to the
Company that would prohibit the making of any payment of moneys to or by the Purchase Contract Agent in respect of the HiMEDS Units pursuant to the provisions of this Section. Notwithstanding the provisions of Section 5.10(e) through
(q) or any other provisions of this Agreement, the Purchase Contract Agent shall not be charged with knowledge of the existence of any facts that would prohibit the making of any payment of moneys to or by the Purchase Contract Agent, or the
taking of any other action by the Purchase Contract Agent, unless and until the Purchase Contract Agent shall have received written notice thereof mailed or delivered to the Purchase Contract Agent at its Institutional Trust Services department from
the Company, any Holder, or the holder or representative of any Senior Indebtedness; provided that if at least two Business Days prior to the date upon which by the terms hereof any such moneys may become payable for any purpose, the Purchase
Contract Agent shall not have received with respect to such moneys the notice provided for in this Section, then, anything herein contained to the contrary notwithstanding, the Purchase Contract Agent shall have full power and authority to receive
such moneys and to apply the same to the purpose for which they were received and shall not be affected by any notice to the contrary that may be received by it within two Business Days prior to or on or after such date. 
 (p) The Purchase Contract Agent in its individual capacity shall be entitled to all the rights set forth in this Section with respect to any Senior
Indebtedness at the time held by it, to the same extent as any other holder of Senior Indebtedness and nothing in this Agreement shall deprive the Purchase Contract Agent of any of its rights as such holder. 
 (q) No right of any present or future holder of any Senior Indebtedness to enforce the subordination herein shall at any time or in any way be prejudiced
or impaired by any act or failure to act on the part of the Company or by any noncompliance by the Company with the terms, provisions and covenants of this Agreement, regardless of any knowledge thereof which any such holder may have or be otherwise
charged with. 
 (r) Nothing in this Section 5.10 shall apply to claims of, or payments to, the Purchase Contract Agent under or
pursuant to Section 7.07. 
 (s) With respect to the holders of Senior Indebtedness, (i) the duties and obligations of the Purchase
Contract Agent shall be determined solely by the express provisions of this Agreement; (ii) the Purchase Contract Agent shall not be liable to any such holders if it shall, acting in good faith, mistakenly pay over or distribute to the Holders
or to the Company or any other Person cash, property or securities to which any holders of Senior Indebtedness shall be entitled by virtue of this Section 5.10 or otherwise; (iii) no implied covenants or obligations shall be read into this
Agreement against the Purchase Contract Agent; and (iv) the Purchase Contract Agent shall not be deemed to be a fiduciary as to such holders. 
 Section 5.11. Deferral of Contract Adjustment Payments. (a) The Company has the right at any time, and from time to time, to defer payment of all or part of the Contract Adjustment Payments in respect of each Purchase
Contract by extending the period for payment of Contract Adjustment Payments to any subsequent Payment Date (an “Extension Period”), but not beyond the Purchase Contract Settlement Date (or, with respect to Purchase Contracts for which an
effective Early Settlement or Merger Early Settlement has occurred, the Early Settlement Date or Merger Early Settlement Date, as the case may be). Prior to the expiration of any 

  

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Extension Period, the Company may further extend such Extension Period to any subsequent Payment Date, but not beyond the Purchase Contract Settlement Date
(or any applicable Early Settlement Date or Merger Early Settlement Date). 
 If the Company so elects to defer Contract Adjustment Payments,
the Company shall pay additional Contract Adjustment Payments on such deferred installments of Contract Adjustment Payments at a rate equal to 7.0% per annum, compounding on each succeeding Payment Date, until such deferred installments are
paid in full (such deferred installments of Contract Adjustment Payments together with the accrued additional Contract Adjustment Payments thereon, being referred to herein as the “Deferred Contract Adjustment Payments”).

At the end of each Extension Period, including as the same may be extended as provided above, or, in the event of an effective Early Settlement or
Merger Early Settlement, on the Early Settlement Date or Merger Early Settlement Date, as the case may be, the Company shall pay all Deferred Contract Adjustment Payments then due in the manner set forth in Section 5.10(a) (in the case of the
end of an Extension Period), in the manner set forth in Section 5.07(b) (in the case of an Early Settlement) or in the manner set forth in Section 5.04(b)(ii) (in the case of a Merger Early Settlement) to the extent such amounts are not
deducted from the amount otherwise payable by the Holder in the case of a Cash Settlement, any Early Settlement or any Merger Early Settlement. In the event of an Early Settlement, the Company shall pay all Deferred Contract Adjustment Payments
due on the Purchase Contracts being settled early through the Payment Date immediately preceding the applicable Early Settlement Date. In the event of a Merger Early Settlement, the Company shall pay all Deferred Contract Adjustment Payments
due on the Purchase Contracts being settled on the Merger Early Settlement Date to but excluding such Merger Early Settlement Date. 
 Upon
termination of any Extension Period and the payment of all Deferred Contract Adjustment Payments and all accrued and unpaid Contract Adjustment Payments then due, the Company may commence a new Extension Period, provided that such Extension
Period, together with all extensions thereof, may not extend beyond the Purchase Contract Settlement Date (or any applicable Early Settlement Date or Merger Early Settlement Date). Except in the case of an Early Settlement or Merger Early
Settlement, no Contract Adjustment Payments shall be due and payable during an Extension Period except at the end thereof, except that prior to the end of such Extension Period, the Company, at its option, may prepay on any Payment Date all or any
portion of the Deferred Contract Adjustment Payments accrued during the then elapsed portion of such Extension Period. 
 (b) The Company
shall give written notice to the Purchase Contract Agent (and the Purchase Contract Agent shall give notice thereof to Holders of Purchase Contracts) of its election to extend any period for the payment of Contract Adjustment Payments, the expected
length of any such Extension Period and any extension of any Extension Period, at least five Business Days before the earlier of (i) the Record Date for the Payment Date on which Contract Adjustment Payments would have been payable except for
the election to begin or extend the Extension Period or (ii) the date the Purchase Contract Agent is required to give notice to any securities exchange or to Holders of Purchase Contracts of such Record Date or such Payment Date. 
  

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 (c) The Company shall give written notice to the Purchase Contract Agent (and the Purchase Contract Agent
shall give notice thereof to Holders of Purchase Contracts) of the end of an Extension Period or its election to pay any portion of the Deferred Contract Adjustment Payments on a payment date prior to the end of an Extension Period, at least five
Business Days before the earlier of (i) the Record Date for the Payment Date on which such Extension Period shall end or such payment of Deferred Contract Adjustment Payments shall be made or (ii) the date the Purchase Contract Agent is
required to give notice to any securities exchange or to Holders of Purchase Contracts of such Record Date or such Payment Date. 
 In the
event the Company exercises its option to defer the payment of Contract Adjustment Payments, then, until all Deferred Contract Adjustment Payments have been paid, the Company shall not, and shall not permit any of its subsidiaries to, declare or pay
dividends on, make distributions with respect to, or redeem, purchase or acquire, or make a liquidation payment with respect to, any of its capital stock or their capital stock or make guarantee payments with respect to the foregoing;
provided that, (i) the Company will not be restricted from paying or distributing shares of Common Stock on the outstanding shares of Common Stock in per share amounts and at such times as is consistent with the Company’s past
practice and (ii) the Company’s subsidiaries will not be restricted from declaring or paying any dividends, or making any distributions, to the Company or any of the Company’s other subsidiaries as a result of the foregoing.

 Section 5.12. No Net Cash Settlement. In the event the Company does not have an effective Registration Statement,
there is no circumstance that would require the Company to “net cash” settle the HiMEDS units. 
 ARTICLE 6 
 RIGHTS AND REMEDIES OF HOLDERS 
 Section 6.01. Unconditional Right of Holders to Receive Contract Adjustment Payments and to Purchase Shares of Common Stock. Each Holder of a HiMEDS Unit shall have the right, which is absolute and unconditional,
(i) subject to Article 5, to receive each Contract Adjustment Payment and Deferred Contract Adjustment Payment with respect to the Purchase Contract comprising part of such HiMEDS Unit on the respective Payment Date for such HiMEDS Unit and
(ii) except upon and following a Termination Event, to purchase shares of Common Stock pursuant to such Purchase Contract and, in each such case, to institute suit for the enforcement of any such right to receive Contract Adjustment Payments
and the right to purchase shares of Common Stock, and such rights shall not be impaired without the consent of such Holder. 
 Section 6.02. Restoration of Rights and Remedies. If any Holder has instituted any proceeding to enforce any right or remedy under this Agreement and such proceeding has been discontinued or abandoned for any reason,
or has been determined adversely to such Holder, then and in every such case, subject to any determination in such proceeding, the Company and such Holder shall be restored severally and respectively to their former positions hereunder, and
thereafter all rights and remedies of such Holder shall continue as though no such proceeding had been instituted. 
  

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 Section 6.03. Rights and Remedies Cumulative. Except as otherwise provided with respect
to the replacement or payment of mutilated, destroyed, lost or stolen Certificates in the last paragraph of Section 3.10, no right or remedy herein conferred upon or reserved to the Holders is intended to be exclusive of any other right or
remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise. The assertion or employment of any
right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy. 
 Section 6.04. Delay or Omission Not Waiver. No delay or omission of any Holder to exercise any right upon a default or remedy upon a default shall impair any such right or remedy or constitute a waiver of any such
right. Every right and remedy given by this Article or by law to the Holders may be exercised from time to time, and as often as may be deemed expedient, by such Holders. 
 Section 6.05. Undertaking for Costs. All parties to this Agreement agree, and each Holder of a HiMEDS Unit, by its acceptance of such
HiMEDS Unit shall be deemed to have agreed, that any court may in its discretion require, in any suit for the enforcement of any right or remedy under this Agreement, or in any suit against the Purchase Contract Agent for any action taken, suffered
or omitted by it as Purchase Contract Agent, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit, and that such court may in its discretion assess reasonable costs, including reasonable attorneys’ fees
and costs against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided that the provisions of this Section shall not apply to any suit instituted by
the Purchase Contract Agent, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% of the Outstanding HiMEDS Units, or to any suit instituted by any Holder for the enforcement of interest on any Senior
Notes or Contract Adjustment Payments on or after the respective Payment Date therefor in respect of any HiMEDS Unit held by such Holder, or for enforcement of the right to purchase shares of Common Stock under the Purchase Contracts constituting
part of any HiMEDS Unit held by such Holder. 
 Section 6.06. Waiver of Stay or Extension Laws. The Company covenants (to
the extent that it may lawfully do so) that it will not at any time insist upon, or plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay or extension law wherever enacted, now or at any time hereafter in force,
which may affect the covenants or the performance of this Agreement; and the Company (to the extent that it may lawfully do so) hereby expressly waives all benefit or advantage of any such law and covenants that it will not hinder, delay or impede
the execution of any power herein granted to the Purchase Contract Agent or the Holders, but will suffer and permit the execution of every such power as though no such law had been enacted. 
 ARTICLE 7 
 THE PURCHASE CONTRACT AGENT 
 Section 7.01. Certain Duties and Responsibilities. (a) The Purchase Contract Agent: 
 (i) undertakes to perform, with respect to the HiMEDS Units, such duties and only such duties as are specifically set forth in this
Agreement and the Remarketing Agreement and no implied covenants or obligations shall be read into this Agreement or the Remarketing Agreement against the Purchase Contract Agent; and 
  

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 (ii) in the absence of bad faith or gross negligence on its part, may, with respect to
the HiMEDS Units, conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Purchase Contract Agent and conforming on their face to the requirements of
this Agreement or the Remarketing Agreement, as applicable, but in the case of any certificates or opinions which by any provision hereof are specifically required to be furnished to the Purchase Contract Agent, the Purchase Contract Agent shall be
under a duty to examine the same to determine whether or not they conform on their face to the requirements of this Agreement or the Remarketing Agreement, as applicable (but need not confirm or investigate the accuracy of the mathematical
calculations, facts stated therein or the substance or sufficiency thereof). 
 (b) No provision of this Agreement or the Remarketing
Agreement shall be construed to relieve the Purchase Contract Agent from liability for its own grossly negligent action, its own grossly negligent failure to act, or its own willful misconduct, except that: 
 (i) this paragraph shall not be construed to limit the effect of paragraph (a) of this Section 7.01; 
 (ii) the Purchase Contract Agent shall not be liable for any error of judgment made in good faith by a Responsible Officer, unless it
shall be conclusively determined by a court of competent jurisdiction that the Purchase Contract Agent was grossly negligent in ascertaining the pertinent facts; and 
 (iii) no provision of this Agreement or the Remarketing Agreement shall require the Purchase Contract Agent to expend or risk its own
funds or otherwise incur any financial liability in the performance of any of its duties hereunder, or in the exercise of any of its rights or powers. 
 (c) Whether or not therein expressly so provided, every provision of this Agreement and the Remarketing Agreement relating to the conduct or affecting the liability of or affording protection to the Purchase Contract
Agent shall be subject to the provisions of this Section. 
 (d) The Purchase Contract Agent is authorized to execute and deliver the
Remarketing Agreement in its capacity as Purchase Contract Agent.
 Section 7.02. Notice of Default. Within 30 days after the
occurrence of any default by the Company hereunder of which a Responsible Officer of the Purchase Contract Agent has actual knowledge, the Purchase Contract Agent shall transmit by mail to the Company and the Holders of HiMEDS Units, as their names
and addresses appear in the Security Register, notice of such default hereunder, unless such default shall have been cured or waived. 
  

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 Section 7.03. Certain Rights of Purchase Contract Agent. Subject to the
provisions of Section 7.01: 
 (a) the Purchase Contract Agent may, in the absence of bad faith, conclusively rely and shall be fully
protected in acting or refraining from acting upon any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document
believed by it to be genuine and to have been signed or presented by the party or parties specified therein; 
 (b) any request or direction
of the Company mentioned herein shall be sufficiently evidenced by an Officers’ Certificate, Issuer Order or Issuer Request, and any resolution of the Board of Directors of the Company may be sufficiently evidenced by a Board Resolution;

 (c) whenever in the administration of this Agreement or the Remarketing Agreement the Purchase Contract Agent shall deem it desirable that
a matter be proved or established prior to taking, suffering or omitting to take any action hereunder, the Purchase Contract Agent (unless other evidence be herein specifically prescribed in this Agreement) may, in the absence of bad faith on its
part, conclusively rely upon an Officers’ Certificate of the Company and any Opinion of Counsel delivered therewith; 
 (d) the Purchase
Contract Agent may consult with counsel of its selection and the advice of such counsel or any Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken, suffered or omitted by it hereunder in good
faith and in reliance thereon;
 (e) the Purchase Contract Agent shall not be bound to make any investigation into the facts or matters
stated in any resolution, certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture, note, other evidence of indebtedness or other paper or document, but the Purchase Contract Agent, in its
discretion, may make reasonable further inquiry or investigation into such facts or matters related to the execution, delivery and performance of the Purchase Contracts as it may see fit, and, if the Purchase Contract Agent shall determine to make
such further inquiry or investigation, it shall be entitled to examine the relevant books, records and premises of the Company, personally or by agent or attorney; 
 (f) the Purchase Contract Agent may execute any of the powers hereunder or perform any duties hereunder either directly or by or through agents, attorneys, custodians or nominees or an Affiliate and the Purchase
Contract Agent shall not be responsible for any misconduct or negligence on the part of any agent, attorney, custodian or nominee or an Affiliate appointed with due care by it hereunder; 
 (g) the Purchase Contract Agent shall be under no obligation to exercise any of the rights or powers vested in it by this Agreement at the request or
direction of any of the Holders pursuant to this Agreement, unless such Holders shall have offered to the Purchase Contract Agent security or indemnity satisfactory to the Purchase Contract Agent against the costs, expenses and liabilities which
might be incurred by it in compliance with such request or direction; 
  

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 (h) the Purchase Contract Agent shall not be liable for any action taken, suffered, or omitted to be
taken by it in the absence of bad faith or gross negligence by it; 
 (i) the Purchase Contract Agent shall not be deemed to have notice of
adjustment to the Settlement Rate, the occurrence of a Termination Event or any default hereunder unless a Responsible Officer of the Purchase Contract Agent has actual knowledge thereof or unless written notice of any such adjustment, occurrence or
event which is in fact such a default is received by a Responsible Offer at the Corporate Trust Office of the Purchase Contract Agent, and such notice references the HiMEDS Units and this Agreement; 
 (j) the Purchase Contract Agent may request that the Company deliver an Officers’ Certificate setting forth the names of individuals and/or titles
of officers authorized at such time to take specified actions pursuant to this Agreement, which Officers’ Certificate may be signed by any person authorized to sign an Officers’ Certificate, including any person specified as so authorized
in any such certificate previously delivered and not superseded; 
 (k) the rights, privileges, protections, immunities and benefits given to
the Purchase Contract Agent, including, without limitation, its right to be indemnified, are extended to, and shall be enforceable by, the Purchase Contract Agent in each of its capacities hereunder, and to each agent, custodian and other Person
employed to act hereunder; 
 (l) the Purchase Contract Agent shall not be required to initiate or conduct any litigation or collection
proceedings hereunder and shall have no responsibilities with respect to any default hereunder except as expressly set forth herein; and 
 (m) the Purchase Contract Agent shall not be responsible or liable for any failure or delay in the performance of its obligations under this Agreement arising out of or caused directly or indirectly, by acts of God; earthquake; fires;
floods; wars; civil or military disturbances; terrorist acts; sabotage; epidemics; riots; interruptions, loss or malfunctions of utilities; accidents; labor disputes; and acts of civil or military authority or governmental actions; it being
understood that the Purchase Contract Agent shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances. 
 Section 7.04. Not Responsible for Recitals or Issuance of HiMEDS Units. The recitals contained herein, in the Remarketing
Agreement and in the Certificates shall be taken as the statements of the Company, and the Purchase Contract Agent assumes no responsibility for their accuracy or validity. The Purchase Contract Agent makes no representations as to the validity
or sufficiency of either this Agreement, the Remarketing Agreement or of the HiMEDS Units or the Pledge or the Collateral and shall have no responsibility for perfecting or maintaining the perfection of any security interest in the Collateral. The
Purchase Contract Agent shall not be accountable for the use or application by the Company of the proceeds in respect of the HiMEDS Units or the Purchase Contracts. 
 Section 7.05. May Hold HiMEDS Units. Any Security Registrar or any other agent of the Company, or the Purchase Contract Agent and its Affiliates, in their individual or any other capacity, may become
the owner or pledgee of HiMEDS Units and may otherwise deal with the Company, the Collateral Agent or any other Person with the same rights it would have if it were not Security Registrar or such other agent, or the Purchase Contract Agent. The
Company may become the owner or pledgee of HiMEDS Units. 
  

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 Section 7.06. Money Held In Custody. Money held by the Purchase Contract Agent in
custody hereunder need not be segregated from the Purchase Contract Agent’s other funds except to the extent required by law or provided herein. The Purchase Contract Agent shall be under no obligation to invest or pay interest on any
money received by it hereunder except as otherwise provided hereunder or agreed in writing with the Company. 
 Section 7.07.
Compensation and Reimbursement. The Company agrees: (a) to pay to the Purchase Contract Agent compensation for all services rendered by it hereunder and under the Remarketing Agreement as the Company and the Purchase Contract Agent
shall from time to time agree in writing; 
 (b) except as otherwise expressly provided for herein, to reimburse the Purchase Contract Agent
upon its request for all expenses, disbursements and advances incurred or made by the Purchase Contract Agent in accordance with any provision of this Agreement and the Remarketing Agreement (including the compensation and the expenses and
disbursements of its agents and counsel) in connection with the negotiation, preparation, execution and delivery and performance of this Agreement and the Remarketing Agreement and any modification, supplement or waiver of any of the terms thereof,
except any such expense, disbursement or advance as may be attributable to its gross negligence, willful misconduct or bad faith; and 
 (c)
to indemnify the Purchase Contract Agent and any predecessor Purchase Contract Agent (and each of its directors, officers, agents and employees (collectively, the “Indemnitees”) for, and to hold each Indemnitee harmless against, any
loss, claim, damage, fine, penalty, liability or expense (including fees and expenses of counsel) incurred without gross negligence, willful misconduct or bad faith on its part, arising out of or in connection with the acceptance or administration
of its duties hereunder and the Remarketing Agreement, including the Indemnitees’ reasonable costs and expenses of defending themselves against any claim (whether asserted by the Company, a Holder or any other person) or liability in connection
with the exercise or performance of any of the Purchase Contract Agent’s powers or duties hereunder or thereunder. 
 In addition, and
without prejudice to the rights provided to the Purchase Contract Agent hereunder, when the Purchase Contract Agent incurs expenses or renders services after a Termination Event occurs, the expenses and the compensation for the services (including
the fees and expenses of its counsel) are intended to constitute expenses of administration under any applicable federal or state bankruptcy law. 
 The provisions of this Section shall survive the resignation and removal of the Purchase Contract Agent, the satisfaction and discharge of the HiMEDS Units and the termination of this Agreement. 
 Section 7.08. Corporate Purchase Contract Agent Required; Eligibility. There shall at all times be a Purchase Contract Agent hereunder
which shall be a Person organized and doing business under the laws of the United States of America, any State thereof or 

  

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the District of Columbia, authorized under such laws to exercise corporate trust powers, having (or being a member of a bank holding company having) a
combined capital and surplus of at least $50,000,000, subject to supervision or examination by Federal or State authority and having a corporate trust office in the Borough of Manhattan, New York City, if there be such a Person in the Borough of
Manhattan, New York City, qualified and eligible under this Article and willing to act on reasonable terms. If such Person publishes or files reports of condition at least annually, pursuant to law or to the requirements of said supervising or
examining authority, then for the purposes of this Section, the combined capital and surplus of such Person shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published or filed. If at
any time the Purchase Contract Agent shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article. 
 Section 7.09. Resignation and Removal; Appointment of Successor. (a) No resignation or removal of the Purchase Contract Agent and
no appointment of a successor Purchase Contract Agent pursuant to this Article shall become effective until the acceptance of appointment by the successor Purchase Contract Agent in accordance with the applicable requirements of Section 7.10.

 (b) The Purchase Contract Agent may resign at any time by giving written notice thereof to the Company 60 days prior to the effective date
of such resignation. If the instrument of acceptance by a successor Purchase Contract Agent required by Section 7.10 shall not have been delivered to the Purchase Contract Agent within 30 days after the giving of such notice of
resignation, the resigning Purchase Contract Agent may petition, at the expense of the Company, any court of competent jurisdiction for the appointment of a successor Purchase Contract Agent. 
 (c) The Purchase Contract Agent may be removed at any time by Act of the Holders of a majority in number of the Outstanding HiMEDS Units delivered to the
Purchase Contract Agent and the Company. If the instrument of acceptance by a successor Purchase Contract Agent required by Section 7.10 shall not have been delivered to the Purchase Contract Agent within 30 days after such Act, the
Purchase Contract Agent being removed may petition any court of competent jurisdiction for the appointment of a successor Purchase Contract Agent. 
 (d) If at any time: 
 (i) the Purchase Contract Agent fails to comply with Section 310(b) of the TIA, as if the
Purchase Contract Agent were an indenture trustee under an indenture qualified under the TIA, and shall fail to resign after written request therefor by the Company or by any Holder who has been a bona fide Holder of a HiMEDS Unit for at least six
months; 
 (ii) the Purchase Contract Agent shall cease to be eligible under Section 7.08 and shall fail to resign after
written request therefor by the Company or by any such Holder; or 
  

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 (iii) the Purchase Contract Agent shall become incapable of acting or shall be adjudged a
bankrupt or insolvent or a receiver of the Purchase Contract Agent or of its property shall be appointed or any public officer shall take charge or control of the Purchase Contract Agent or of its property or affairs for the purpose of
rehabilitation, conservation or liquidation, 
 then, in any such case, (i) the Company by a Board Resolution may remove the Purchase
Contract Agent, or (ii) any Holder who has been a bona fide Holder of a HiMEDS Unit for at least six months may, on behalf of himself and all others similarly situated, petition any court of competent jurisdiction for the removal of the
Purchase Contract Agent and the appointment of a successor Purchase Contract Agent. 
 (e) If the Purchase Contract Agent shall resign, be
removed or become incapable of acting, or if a vacancy shall occur in the office of Purchase Contract Agent for any cause, the Company, by a Board Resolution, shall promptly appoint a successor Purchase Contract Agent and shall comply with the
applicable requirements of Section 7.10. If no successor Purchase Contract Agent shall have been so appointed by the Company and accepted appointment in the manner required by Section 7.10, any Holder who has been a bona fide Holder
of a HiMEDS Unit for at least six months, on behalf of itself and all others similarly situated, or the Purchase Contract Agent may petition at the expense of the Company, any court of competent jurisdiction for the appointment of a successor
Purchase Contract Agent. 
 (f) The Company shall give, or shall cause such successor Purchase Contract Agent to give, notice of each
resignation and each removal of the Purchase Contract Agent and each appointment of a successor Purchase Contract Agent by mailing written notice of such event by first-class mail, postage prepaid, to all Holders as their names and addresses appear
in the Security Register. Each notice shall include the name of the successor Purchase Contract Agent and the address of its Corporate Trust Office. 
 Section 7.10. Acceptance of Appointment by Successor. (a) In case of the appointment hereunder of a successor Purchase Contract Agent, every such successor Purchase Contract Agent so appointed shall
execute, acknowledge and deliver to the Company and to the retiring Purchase Contract Agent an instrument accepting such appointment, and thereupon the resignation or removal of the retiring Purchase Contract Agent shall become effective and such
successor Purchase Contract Agent, without any further act, deed or conveyance, shall become vested with all the rights, powers, agencies and duties of the retiring Purchase Contract Agent; but, on the request of the Company or the successor
Purchase Contract Agent, such retiring Purchase Contract Agent shall, upon payment of amounts owed to it pursuant to Section 7.07, execute and deliver an instrument transferring to such successor Purchase Contract Agent all the rights, powers
and trusts of the retiring Purchase Contract Agent and duly assign, transfer and deliver to such successor Purchase Contract Agent all property and money held by such retiring Purchase Contract Agent hereunder. 
 (b) Upon request of any such successor Purchase Contract Agent, the Company shall execute any and all instruments for more fully and certainly vesting in
and confirming to such successor Purchase Contract Agent all such rights, powers and agencies referred to in paragraph (a) of this Section 7.10. 
  

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 (c) No successor Purchase Contract Agent shall accept its appointment unless at the time of such
acceptance such successor Purchase Contract Agent shall be qualified and eligible under this Article. 
 Section 7.11. Merger,
Conversion, Consolidation or Succession to Business. Any Person into which the Purchase Contract Agent may be merged or converted or with which it may be consolidated, or any Person resulting from any merger, conversion or consolidation
to which the Purchase Contract Agent shall be a party, or any Person succeeding to all or substantially all the corporate trust business of the Purchase Contract Agent, shall be the successor of the Purchase Contract Agent hereunder, provided
that such Person shall be otherwise qualified and eligible under this Article, without the execution or filing of any paper or any further act on the part of any of the parties hereto. In case any Certificates shall have been authenticated and
executed on behalf of the Holders, but not delivered, by the Purchase Contract Agent then in office, any successor by merger, conversion or consolidation to such Purchase Contract Agent may adopt such authentication and execution and deliver the
Certificates so authenticated and executed with the same effect as if such successor Purchase Contract Agent had itself authenticated and executed such HiMEDS Units. 
 Section 7.12. Preservation of Information; Communications to Holders. (a) The Purchase Contract Agent shall preserve, in as current a form as is reasonably practicable, the names and addresses of
Holders received by the Purchase Contract Agent in its capacity as Security Registrar. 
 (b) If three or more Holders (herein referred to as
“Applicants”) apply in writing to the Purchase Contract Agent, and furnish to the Purchase Contract Agent reasonable proof that each such Applicant has owned a HiMEDS Unit for a period of at least six months preceding the date of
such application, and such application states that the Applicants desire to communicate with other Holders with respect to their rights under this Agreement or under the HiMEDS Units and is accompanied by a copy of the form of proxy or other
communication which such Applicants propose to transmit, then the Purchase Contract Agent shall mail to all the Holders copies of the form of proxy or other communication which is specified in such request, with reasonable promptness after a tender
to the Purchase Contract Agent of the materials to be mailed and of payment, or provision for the payment, of the reasonable expenses of such mailing. 
 Section 7.13. No Obligations of Purchase Contract Agent. Except to the extent otherwise expressly provided in this Agreement, the Purchase Contract Agent assumes no obligations and shall not be subject to
any liability under this Agreement, the Remarketing Agreement or any Purchase Contract in respect of the obligations of the Holder of any HiMEDS Unit thereunder. The Company agrees, and each Holder of a Certificate, by its acceptance thereof,
shall be deemed to have agreed, that the Purchase Contract Agent’s execution of the Certificates on behalf of the Holders shall be solely as agent and attorney-in-fact for the Holders, and that the Purchase Contract Agent shall have no
obligation to perform such Purchase Contracts on behalf of the Holders, except to the extent expressly provided in Article Five hereof. Anything contained in this Agreement to the contrary notwithstanding, in no event shall the Purchase
Contract Agent or its officers, directors, employees or agents be liable under this Agreement or the Remarketing Agreement for indirect, incidental, special, punitive, or consequential loss or damage of any kind whatsoever, including lost profits,
whether or not the likelihood of such loss or damage was known to the Purchase Contract Agent and regardless of the form of action. 
  

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 Section 7.14. Tax Compliance. (a) The Purchase Contract Agent, on its own
behalf and on behalf of the Company, will comply with all applicable certification, information reporting and withholding (including “backup” withholding) requirements imposed by applicable tax laws, regulations or administrative practice
with respect to (i) any payments made with respect to the HiMEDS Units or (ii) the issuance, delivery, holding, transfer, redemption or exercise of rights under the HiMEDS Units. Such compliance shall include, without limitation, the
preparation and timely filing of required returns and the timely payment of all amounts required to be withheld to the appropriate taxing authority or its designated agent. 
 (b) The Purchase Contract Agent shall comply in accordance with the terms hereof with any written direction received from the Company with respect to the
execution or certification of any required documentation and the application of such requirements to particular payments or Holders or in other particular circumstances, and may for purposes of this Agreement conclusively rely on any such direction
in accordance with the provisions of Section 7.01 hereof. 
 (c) The Purchase Contract Agent shall maintain all appropriate records
documenting compliance with such requirements, and shall make such records available, on written request, to the Company or its authorized representative within a reasonable period of time after receipt of such request. 
 ARTICLE 8 
 SUPPLEMENTAL AGREEMENTS 

Section 8.01. Supplemental Agreements without Consent of Holders. Without the consent of any Holders, the Company, when authorized
by a Board Resolution, the Purchase Contract Agent, the Collateral Agent, the Custodial Agent and the Securities Intermediary at any time and from time to time, may enter into one or more agreements supplemental hereto, in form satisfactory to the
Company and the Purchase Contract Agent, to: 
 (a) evidence the succession of another Person to the Company, and the assumption by any such
successor of the covenants of the Company herein and in the Certificates; 
 (b) evidence and provide for the acceptance of appointment
hereunder by a successor Purchase Contract Agent, Collateral Agent, Securities Intermediary or Custodial Agent; 
 (c) add to the covenants
of the Company for the benefit of the Holders, or surrender any right or power herein conferred upon the Company provided that such covenants or such surrender do not adversely affect the validity, perfection or priority of the Pledge created
hereunder; 
 (d) make provision with respect to the rights of Holders pursuant to and consistent with the requirements of
Section 5.04(b)(i); 
  

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 (e) cure any ambiguity (or formal defect), or correct or supplement any provisions herein that may be
inconsistent with any other provisions herein; or 
 (f) or make any other provisions with respect to such matters or questions arising under
this Agreement; provided that such action shall not adversely affect the interests of the Holders in any material respect; provided further that any amendment made solely to conform the provisions of this Agreement to the description
of the HiMEDS Units and the Purchase Contracts contained in the Prospectus will not be deemed to adversely affect the interests of the Holders. 
 Section 8.02. Supplemental Agreements with Consent of Holders. With the consent of the Holders of not less than a majority of the Outstanding HiMEDS Units voting together as one class, including without limitation
the consent of the Holders obtained in connection with a tender or an exchange offer, by Act of said Holders delivered to the Company, the Purchase Contract Agent, the Company, the Collateral Agent, the Securities Intermediary and the Custodial
Agent, as the case may be, when authorized by a Board Resolution, and the Purchase Contract Agent may enter into an agreement or agreements supplemental hereto for the purpose of modifying in any manner the terms of the Purchase Contracts, or the
provisions of this Agreement or the rights of the Holders in respect of the HiMEDS Units; provided, however, that, except as contemplated herein, no such supplemental agreement shall, without the unanimous consent of the Holders of each
outstanding Purchase Contract affected thereby, 
 (a) change any Payment Date; 
 (b) change the amount of Collateral required to be Pledged to secure a Holder’s obligations under the Purchase Contract (except for the rights of
holders of Corporate HiMEDS Units to substitute Treasury Securities for the Pledged Senior Notes or the rights of Holders of Treasury HiMEDS Units to substitute Senior Notes for the Pledged Treasury Securities), unless such change is not adverse to
the Holders, does not impair the right of the Holder of any Purchase Contract to receive distributions on the related Collateral or otherwise adversely affect the Holder’s rights in or to such Collateral or adversely alter the rights in or to
such Collateral; 
 (c) impair the Holders’ right to institute suit for the enforcement of any Purchase Contract or any Contract
Adjustment Payments or any Deferred Contract Adjustment Payments; 
 (d) reduce the number of shares of Common Stock or the amount of any
other property to be purchased pursuant to any Purchase Contract, increase the price to purchase shares of Common Stock or any other property upon settlement of any Purchase Contract except, in each case, to the extent expressly provided in
Section 5.04 hereof or change the Purchase Contract Settlement Date or the right to Early Settlement or Merger Early Settlement or otherwise adversely affect the Holder’s rights under the Purchase Contract; 
 (e) reduce any Contract Adjustment Payments or any Deferred Contract Adjustment Payments or change any place where, or the coin or currency in which, any
Contract Adjustment Payment is payable; 
  

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 (f) reduce the percentage of the outstanding Purchase Contracts the consent of whose Holders is required
for any modification or amendment to the provisions of this Agreement or the Purchase Contracts; or 
 (g) otherwise effect any action that
would require the consent of the Holder of each Outstanding HiMEDS Unit affected thereby if such action were effected by a modification or amendment of the provisions of this Agreement; 
 provided that if any amendment or proposal referred to above would adversely affect only the Corporate HiMEDS Units or the Treasury HiMEDS Units, then only the affected class of Holders as of the record date
for the Holders entitled to vote thereon will be entitled to vote on such amendment or proposal, and such amendment or proposal shall not be effective except with the consent of Holders of not less than a majority of such class; and provided,
further, that the unanimous consent of the Holders of each outstanding Purchase Contract of such class affected thereby shall be required to approve any amendment or proposal specified in clauses (a) through (g) above. 
 It shall not be necessary for any Act of Holders under this Section to approve the particular form of any proposed supplemental agreement, but it shall
be sufficient if such Act shall approve the substance thereof. 
 Section 8.03. Execution of Supplemental
Agreements. In executing, or accepting the additional agencies created by, any supplemental agreement permitted by this Article or the modifications thereby of the agencies created by this Agreement, the Purchase Contract Agent, the
Collateral Agent, the Securities Intermediary and the Custodial Agent shall be provided, and (subject to Section 7.01 with respect to the Purchase Contract Agent) shall be fully authorized and protected in relying upon, an Officers’
Certificate and an Opinion of Counsel stating that the execution of such supplemental agreement is authorized or permitted by this Agreement and that any and all conditions precedent to the execution and delivery of such supplemental agreement have
been satisfied. The Purchase Contract Agent, the Collateral Agent, the Securities Intermediary and the Custodial Agent may, but shall not be obligated to, enter into any such supplemental agreement which affects their own rights, duties or
immunities under this Agreement or otherwise. 
 Section 8.04. Effect of Supplemental Agreements. Upon the execution of any
supplemental agreement under this Article, this Agreement shall be modified in accordance therewith, and such supplemental agreement shall form a part of this Agreement for all purposes; and every Holder of Certificates theretofore or thereafter
authenticated, executed on behalf of the Holders and delivered hereunder, shall be bound thereby. 
 Section 8.05. Reference to
Supplemental Agreements. Certificates authenticated, executed on behalf of the Holders and delivered after the execution of any supplemental agreement pursuant to this Article may, and shall if required by the Purchase Contract Agent, bear
a notation in form approved by the Purchase Contract Agent as to any matter provided for in such supplemental agreement. If the Company shall so determine, new Certificates so modified as to conform, in the opinion of the Purchase Contract
Agent and the Company, to any such supplemental agreement may be prepared and executed by the Company and authenticated, executed on behalf of the Holders and delivered by the Purchase Contract Agent in exchange for outstanding Certificates.

  

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 ARTICLE 9 
 CONSOLIDATION, MERGER, CONVEYANCE, TRANSFER OR LEASE 
 Section 9.01. Covenant Not to Consolidate,
Merge, Convey, Transfer or Lease Property Except under Certain Conditions. The Company covenants that it will not consolidate with, convert into, or merge with and into, any other corporation or sell, assign, transfer, lease or convey all or
substantially all of its properties and assets to any Person, unless: 
 (a) either the Company shall be the surviving Person, or the
successor (if other than the Company) shall be a corporation organized and existing under the laws of the United States of America or a State thereof or the District of Columbia and such corporation shall expressly assume all the obligations of the
Company under the Purchase Contracts, this Agreement (including the Pledge provided for herein), the Indenture (including any supplement thereto) and the Remarketing Agreement by one or more supplemental agreements in form reasonably satisfactory to
the Purchase Contract Agent and the Collateral Agent, executed and delivered to the Purchase Contract Agent and the Collateral Agent by such corporation; and 
 (b) the Company or such successor corporation, as the case may be, shall not, immediately after such consolidation, conversion, merger, sale, assignment, transfer, lease or conveyance, be in default of payment
obligations under the Purchase Contracts, this Agreement, the Indenture (including any supplement thereto) or the Remarketing Agreement or in material default in the performance of any other covenants under any of the foregoing agreements.

 Section 9.02. Rights and Duties of Successor Corporation. In case of any such merger, consolidation, share exchange, sale,
assignment, transfer, lease or conveyance and upon any such assumption by a successor corporation in accordance with Section 9.01, such surviving Person shall succeed to and be substituted for the Company with the same effect as if it had been
named herein as the Company. Such surviving Person thereupon may cause to be signed, and may issue either in its own name or in the name of BankUnited Financial Corporation any or all of the Certificates evidencing HiMEDS Units issuable
hereunder which theretofore shall not have been signed by the Company and delivered to the Purchase Contract Agent; and, upon the order of such surviving Person, instead of the Company, and subject to all the terms, conditions and limitations in
this Agreement prescribed, the Purchase Contract Agent shall authenticate and execute on behalf of the Holders and deliver any Certificates which previously shall have been signed and delivered by the officers of the Company to the Purchase Contract
Agent for authentication and execution, and any Certificate evidencing HiMEDS Units which such surviving Person thereafter shall cause to be signed and delivered to the Purchase Contract Agent for that purpose. All the Certificates issued shall
in all respects have the same legal rank and benefit under this Agreement as the Certificates theretofore or thereafter issued in accordance with the terms of this Agreement as though all of such Certificates had been issued at the date of the
execution hereof. 
  

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 In case of any such merger, consolidation, share exchange, sale, assignment, transfer, lease or
conveyance such change in phraseology and form (but not in substance) may be made in the Certificates evidencing HiMEDS Units thereafter to be issued as may be appropriate. 
 Section 9.03. Officers’ Certificate and Opinion of Counsel Given to Purchase Contract Agent. The Purchase Contract Agent, subject
to Section 7.01 and Section 7.03, shall receive an Officers’ Certificate and an Opinion of Counsel as conclusive evidence that any such merger, consolidation, share exchange, sale, assignment, transfer, lease or conveyance, and any
such assumption, complies with the provisions of this Article and that all conditions precedent to the consummation of any such merger, consolidation, share exchange, sale, assignment, transfer, lease or conveyance have been met. 
 ARTICLE 10 
 COVENANTS 
 Section 10.01. Performance under Purchase Contracts. The Company covenants and agrees for the benefit of the Holders from time to time
of the HiMEDS Units that it will duly and punctually perform its obligations under the Purchase Contracts in accordance with the terms of the Purchase Contracts and this Agreement. 
 Section 10.02. Maintenance of Office or Agency. The Company will maintain in the Borough of Manhattan, New York City an office or
agency where Certificates may be presented or surrendered for acquisition of shares of Common Stock upon settlement of the Purchase Contracts on the Purchase Contract Settlement Date or upon Early Settlement or Merger Early Settlement and for
transfer of Collateral upon occurrence of a Termination Event, where Certificates may be surrendered for registration of transfer or exchange, for a Collateral Substitution or recreation of Corporate HiMEDS Units and where notices and demands to or
upon the Company in respect of the HiMEDS Units and this Agreement may be served. The Company will give prompt written notice to the Purchase Contract Agent of the location, and any change in the location, of such office or agency. The Company
initially designates the Corporate Trust Office of the Purchase Contract Agent as such office of the Company, and the Company hereby appoints the Purchase Contract Agent as its agent to receive all such presentations, surrenders, notices and
demands. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Purchase Contract Agent with the address thereof, such presentations, surrenders, notices and demands may be made or
served at the Corporate Trust Office, and the Company hereby appoints the Purchase Contract Agent as its agent to receive all such presentations, surrenders, notices and demands. 
 The Company may also from time to time designate one or more other offices or agencies where Certificates may be presented or surrendered for any or all
such purposes and may from time to time rescind such designations; provided, however, that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the Borough of
Manhattan, New York City for such purposes. The Company will give prompt written notice to the Purchase Contract Agent of any such designation or rescission and of any change in the location of any such other office or agency. The Company
hereby designates as the place of payment for the HiMEDS Units the Corporate Trust Office and appoints the Purchase Contract Agent at its Corporate Trust Office as paying agent in the city in which such Corporate Trust Office is located. 

 

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 Section 10.03. Company to Reserve Common Stock. The Company shall at all times prior to
the Purchase Contract Settlement Date reserve and keep available, free from preemptive rights, out of its authorized but unissued Common Stock the full number of shares of Common Stock issuable against tender of payment in respect of all Purchase
Contracts constituting a part of the HiMEDS Units evidenced by Outstanding Certificates. 
 Section 10.04. Covenants as to Common
Stock; Listing. (a) The Company covenants that all shares of Common Stock which may be issued against tender of payment in respect of any Purchase Contract constituting a part of the Outstanding HiMEDS Units will, upon issuance, be
duly authorized, validly issued, fully paid and nonassessable. 
 The Company further covenants that, if at any time the Common Stock shall
be listed on NASDAQ, the NYSE or any other national securities exchange or automated quotation system, the Company will, if permitted by the rules of such exchange or automated quotation system, list and keep listed, or obtain and maintain approval
for listing subject to notice of issuance (which notice the Company covenants to give concurrently with the issuance of Common Stock pursuant hereto), so long as the Common Stock shall be so listed on such exchange or automated quotation system, all
Common Stock issuable upon Settlement of Purchase Contracts; provided, however, that, if the rules of such exchange or automated quotation system permit the Company to defer the listing of such Common Stock until the date on which any
Purchase Contract first settles in accordance with the provisions of this Agreement, the Company covenants to list such Common stock issuable upon Settlement of the Purchase Contracts in accordance with the requirements of such exchange or automated
quotation system at such time. 
 Section 10.05. Statements of Officers of the Company as to Default. The Company
will deliver to the Purchase Contract Agent, within 120 days after the end of each fiscal year of the Company, commencing with the fiscal year ending December 31, 2007, an Officers’ Certificate, stating whether or not to the knowledge of
the signers thereof) the Company is in default in the performance and observance of any of the terms, provisions and conditions hereof, and if the Company shall be in default, specifying all such defaults and the nature and status thereof of which
they may have knowledge. 
 Section 10.06. ERISA. Each Holder from time to time of the HiMEDS Units that is a Plan or who used
assets of a Plan to purchase or hold HiMEDS Units (or any securities comprising or underlying such securities) hereby represents that from and including the date if its acquisition of the HiMEDS Units (or any security comprising or underlying such
securities) through and including the date of the satisfaction of the obligation under the purchase contract and/or the disposition of any such HiMEDS Units (the components comprising or underlying such securities) either (i) no portion of the
assets used by such Holder to acquire or hold the HiMEDS Units (or any securities comprising or underlying such securities) constitutes the assets of any Plan or (ii) the purchase or holding of the Corporate HiMEDS Units (or any securities
comprising or underlying such securities) by such Holder will not constitute or result in a non-exempt prohibited transaction under Section 406 of ERISA or Section 4975 of the Code or similar violation under any applicable Similar Laws.

  

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 Section 10.08. Tax Treatment. The Company covenants and agrees for tax purposes, to
(i) treat a Holder’s acquisition of the Corporate HiMEDS Units as the acquisition of the Senior Note and Purchase Contract constituting the Corporate HiMEDS Units and (ii) treat each Holder as the owner of the applicable interest in
the Collateral Account, including the Senior Notes or the Treasury Securities. 
 ARTICLE 11 
 PLEDGE 
 Section 11.01.
Pledge. Each Holder, acting through the Purchase Contract Agent as such Holder’s attorney-in-fact, and the Purchase Contract Agent, acting solely as such attorney-in-fact, hereby pledges and grants to the Collateral Agent, as agent
of and for the benefit of the Company, a continuing first priority security interest in and to, and a lien upon and right of set-off against, all of such Person’s right, title and interest in and to the Collateral to secure the prompt and
complete payment and performance when due (whether at stated maturity, by acceleration or otherwise) of the Obligations. The Collateral Agent shall have all of the rights, remedies and recourses with respect to the Collateral afforded a secured
party by the UCC, in addition to, and not in limitation of, the other rights, remedies and recourses afforded to the Collateral Agent by this Agreement. 
 Section 11.02. Termination. As to each Holder, the Pledge created hereby shall terminate upon the satisfaction of such Holder’s Obligations. Upon such termination, the Collateral Agent shall
instruct the Securities Intermediary to Transfer such portion of the Collateral attributable to such Holder to the Purchase Contract Agent for distribution to such Holder, free and clear of the Pledge created hereby. 
 ARTICLE 12 
 ADMINISTRATION OF COLLATERAL

 Section 12.01. Initial Deposit of Senior Notes. (a) Prior to or concurrently with the execution and delivery of this
Agreement, the Purchase Contract Agent, on behalf of the initial Holders of the Corporate HiMEDS Units, shall Transfer to the Securities Intermediary, for credit to the Collateral Account, the Senior Notes or security entitlements relating thereto
and, with respect to any such security entitlements, the Securities Intermediary shall indicate by book-entry that a securities entitlement with respect to such Senior Notes has been credited to the Collateral Account. 
 (b) The Collateral Agent may, at any time or from time to time, in its sole discretion, cause any or all securities or other property underlying any
financial assets credited to the Collateral Account to be registered in the name of the Securities Intermediary, the Collateral Agent or their respective nominees; provided, however, that unless any Event of Default (as defined in the
Indenture) shall have occurred and be continuing, the Collateral Agent agrees not to cause any Senior Notes to be so re-registered. 
 Section 12.02. Establishment of Collateral Account. The Securities Intermediary hereby confirms that: 
 (a) the
Securities Intermediary has established the Collateral Account; 
  

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 (b) the Collateral Account is a securities account; 
 (c) subject to the terms of this Agreement, the Securities Intermediary shall identify in its records the Collateral Agent as the entitlement holder
entitled to exercise the rights that comprise any financial asset credited to the Collateral Account; 
 (d) all property delivered to the
Securities Intermediary pursuant to this Agreement will be credited promptly to the Collateral Account; and 
 (e) all securities or other
property underlying any financial assets credited to the Collateral Account shall be (i) registered in the name of the Purchase Contract Agent and indorsed to the Securities Intermediary or in blank, (ii) registered in the name of the
Securities Intermediary or (iii) credited to another securities account maintained in the name of the Securities Intermediary. In no case will any financial asset credited to the Collateral Account be registered in the name of the Purchase
Contract Agent (in its capacity as such) or any Holder or specially indorsed to the Purchase Contract Agent (in its capacity as such) or any Holder, unless such financial asset has been further indorsed to the Securities Intermediary or in blank.

 Section 12.03. Treatment as Financial Assets. Each item of property (whether investment property, financial asset,
security, instrument or cash) credited to the Collateral Account shall be treated as a financial asset. 
 Section 12.04. Sole
Control by Collateral Agent. Except as provided in Section 15.01, at all times prior to the termination of the Pledge, the Collateral Agent shall have sole control of the Collateral Account, and the Securities Intermediary shall take
instructions and directions, and comply with entitlement orders, with respect to the Collateral Account or any financial asset credited thereto solely from the Collateral Agent. If at any time the Securities Intermediary shall receive an entitlement
order issued by the Collateral Agent and relating to the Collateral Account, the Securities Intermediary shall comply with such entitlement order without further consent by the Purchase Contract Agent or any Holder or any other Person. Except as
otherwise permitted under this Agreement, until termination of the Pledge, the Securities Intermediary will not comply with any entitlement orders issued by the Purchase Contract Agent or any Holder. 
 Section 12.05. Jurisdiction. The Collateral Account, and the rights and obligations of the Securities Intermediary, the Collateral
Agent, the Purchase Contract Agent and the Holders with respect thereto, shall be governed by the laws of the State of New York. Regardless of any provision in any other agreement, the Securities Intermediary’s jurisdiction is the State of New
York. 
 Section 12.06. No Other Claims. Except for the claims and interest of the Collateral Agent and of the Purchase
Contract Agent and the Holders in the Collateral Account, the Securities Intermediary (without having conducted any investigation) does not know of any claim to, or interest in, the Collateral Account or in any financial asset credited thereto. If
any Person asserts any lien, encumbrance or adverse claim (including any writ, garnishment, judgment, warrant of attachment, execution or similar process) against the Collateral Account or in any financial asset carried therein, the Securities
Intermediary will promptly notify the Collateral Agent and the Purchase Contract Agent. 
  

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 Section 12.07. Investment and Release. All proceeds of financial assets from time
to time credited to the Collateral Account shall be invested and reinvested as provided in this Agreement. At all times prior to termination of the Pledge, no property shall be released from the Collateral Account except in accordance with this
Agreement or upon written instructions of the Collateral Agent. 
 Section 12.08. Statements and Confirmations. The
Securities Intermediary will promptly send copies of all statements, confirmations and other correspondence concerning the Collateral Account and any financial assets credited thereto simultaneously to each of the Purchase Contract Agent and the
Collateral Agent at their addresses for notices under this Agreement. 
 Section 12.09. Tax Allocations. The Purchase
Contract Agent shall report all items of income, gain, expense and loss recognized in the Collateral Account, to the extent such reporting is required by law, to the Internal Revenue Service authorities in the manner required by law. Neither
the Securities Intermediary nor the Collateral Agent shall have any tax reporting duties hereunder. 
 Section 12.10. No Other
Agreements. The Securities Intermediary has not entered into, and prior to the termination of the Pledge will not enter into, any agreement with any other Person relating to the Collateral Account or any financial assets credited thereto,
including, without limitation, any agreement to comply with entitlement orders of any Person other than the Collateral Agent. 
 Section 12.11. Powers Coupled with an Interest. The rights and powers granted in this Agreement to the Collateral Agent have been granted in order to perfect its security interests in the Collateral Account, are powers
coupled with an interest and will be affected neither by the bankruptcy of the Purchase Contract Agent or any Holder nor by the lapse of time. The obligations of the Securities Intermediary under this Purchase Contract and Pledge Agreement shall
continue in effect until the termination of the Pledge. 
 Section 12.12. Waiver of Lien; Waiver of Set-off. The Securities
Intermediary waives any security interest, lien or right to make deductions or set-offs that it may now have or hereafter acquire in or with respect to the Collateral Account, any financial asset credited thereto or any security entitlement in
respect thereof. Neither the financial assets credited to the Collateral Account nor the security entitlements in respect thereof will be subject to deduction, set-off, banker’s lien, or any other right in favor of any person other than
the Company. 
 ARTICLE 13 
 RIGHTS
AND REMEDIES OF THE COLLATERAL AGENT 
 Section 13.01. Rights and Remedies of the Collateral Agent. (a) In addition to the rights
and remedies set forth herein or otherwise available at law or in equity, after an event of default (as specified in Section 13.01(b) below) hereunder, the Collateral Agent shall have all of the rights and remedies with respect to the
Collateral of a secured party under the UCC (whether or not the UCC is in effect in the jurisdiction where the rights and remedies are asserted) and the TRADES Regulations and such additional rights and remedies to which a secured party is entitled
under the laws in effect in any jurisdiction where any rights and remedies 

  

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hereunder may be asserted. Without limiting the generality of the foregoing, such remedies may include, to the extent permitted by applicable law,
(1) retention of the Pledged Senior Notes or Pledged Treasury Securities in full satisfaction of the Holders’ obligations under the Purchase Contracts and the Purchase Contract Agreement or (2) sale of the Pledged Senior Notes or
Pledged Treasury Securities in one or more public or private sales. 
 (b) Without limiting any rights or powers otherwise granted by this
Agreement to the Collateral Agent, in the event the Collateral Agent is unable to make payments to the Company, or on account of principal payments of any Pledged Treasury Securities as provided in this Agreement in satisfaction of the Obligations
of the Holder of the HiMEDS Units of which such Pledged Treasury Securities are a part under the related Purchase Contracts, the inability to make such payments shall constitute an “event of default” hereunder and the Collateral
Agent shall have and may exercise, with reference to such Pledged Treasury Securities any and all of the rights and remedies available to a secured party under the UCC and the TRADES Regulations after default by a debtor, and as otherwise granted
herein or under any other law. 
 (c) Without limiting any rights or powers otherwise granted by this Agreement to the Collateral Agent, the
Collateral Agent is hereby irrevocably authorized to receive, collect and apply to the satisfaction of the Obligations all payments of (i) the principal amount of the Pledged Senior Notes and (ii) the principal amount of the Pledged
Treasury Securities, subject, in each case, to the provisions of this Agreement, and as otherwise provided herein. 
 (d) The Purchase
Contract Agent and each Holder of HiMEDS Units agrees that, from time to time, upon the written request of the Collateral Agent or the Purchase Contract Agent, such Holder shall execute and deliver such further documents and do such other acts and
things as the Collateral Agent may reasonably request in order to maintain the Pledge, and the perfection and priority thereof, and to confirm the rights of the Collateral Agent hereunder. The Purchase Contract Agent shall have no liability to any
Holder for executing any documents or taking any such acts requested by the Collateral Agent hereunder, except for liability for its own grossly negligent acts, its own grossly negligent failure to act or its own willful misconduct. 
 ARTICLE 14 
 REPRESENTATIONS AND WARRANTIES TO

 COLLATERAL AGENT; HOLDER COVENANTS 
 Section 14.01. Representations and Warranties. Each Holder from time to time, acting through the Purchase Contract Agent as attorney-in-fact (it being understood that the Purchase Contract Agent shall not be liable for any
representation or warranty made by or on behalf of a Holder), hereby represents and warrants to the Collateral Agent (with respect to such Holder’s interest in the Collateral), which representations and warranties shall be deemed repeated on
each day a Holder Transfers Collateral, that: 
 (a) such Holder has the power to grant a security interest in and lien on the Collateral;

  

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 (b) such Holder is the sole beneficial owner of the Collateral and, in the case of Collateral delivered
in physical form, is the sole holder of such Collateral and is the sole beneficial owner of, or has the right to Transfer, the Collateral it Transfers to the Collateral Agent for credit to the Collateral Account, free and clear of any security
interest, lien, encumbrance, call, liability to pay money or other restriction other than the security interest and lien granted under Article 11 hereof; 
 (c) upon the Transfer of the Collateral to the Securities Intermediary for credit to the Collateral Account, the Collateral Agent, for the benefit of the Company, will have a valid and perfected first priority
security interest therein (assuming that any central clearing operation or any securities intermediary or other entity not within the control of the Holder involved in the Transfer of the Collateral, including the Collateral Agent and the Securities
Intermediary, gives the notices and takes the action required of it hereunder and under applicable law for perfection of that interest and assuming the establishment and exercise of control pursuant to Article 12 hereof); and 
 (d) the execution and performance by the Holder of its obligations under this Agreement will not result in the creation of any security interest, lien or
other encumbrance on the Collateral other than the security interest and lien granted under Article 11 hereof or violate any provision of any existing law or regulation applicable to it or of any mortgage, charge, pledge, indenture, contract or
undertaking to which it is a party or which is binding on it or any of its assets. 
 Section 14.02. Covenants. The Purchase
Contract Agent and the Holders from time to time, acting through the Purchase Contract Agent as their attorney-in-fact (it being understood that the Purchase Contract Agent shall not be liable for any covenant made by or on behalf of a Holder),
hereby covenant to the Collateral Agent that for so long as the Collateral remains subject to the Pledge: 
 (a) neither the Purchase Contract
Agent nor such Holders will create or purport to create or allow to subsist any mortgage, charge, lien, pledge or any other security interest whatsoever over the Collateral or any part of it other than pursuant to this Agreement; and 
 (b) neither the Purchase Contract Agent nor such Holders will sell or otherwise dispose (or attempt to dispose) of the Collateral or any part of it
except for the beneficial interest therein, subject to the Pledge hereunder, transferred in connection with a Transfer of the HiMEDS Units. 
 ARTICLE 15 
 THE COLLATERAL AGENT, THE CUSTODIAL AGENT AND THE SECURITIES 
 INTERMEDIARY 
 It is hereby agreed as follows: 
 Section 15.01. Appointment, Powers and Immunities. The Collateral Agent, the Custodial Agent and the Securities Intermediary shall act as
agent for the Company hereunder with such powers as are specifically vested in the Collateral Agent, the Custodial Agent and the Securities Intermediary, as the case may be, by the terms of this Agreement. The Collateral Agent, the Custodial Agent
and Securities Intermediary shall: 
 (a) have no duties or responsibilities except those expressly set forth in this Agreement and no implied
covenants or obligations shall be inferred from this Agreement against the Collateral Agent, the Custodial Agent or the Securities Intermediary, nor shall the Collateral Agent, the Custodial Agent or the Securities Intermediary be bound by the
provisions of any agreement by any party hereto beyond the specific terms hereof; 
  

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 (b) not be responsible for any recitals contained in this Agreement, or in any certificate or other
document referred to or provided for in, or received by it under, this Agreement, the HiMEDS Units or the Purchase Contract Agreement, or for the value, validity, effectiveness, genuineness, enforceability or sufficiency of this Agreement (other
than as against the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be), the HiMEDS Units, any Collateral or the Purchase Contract Agreement or any other document referred to or provided for herein or therein or
for any failure by the Company or any other Person (except the Collateral Agent, the Custodial Agent or Securities Intermediary, as the case may be) to perform any of its obligations hereunder or thereunder or for the perfection, priority or, except
as expressly required hereby, maintenance of any security interest created hereunder; 
 (c) not be required to initiate or conduct any
litigation or collection proceedings hereunder (except pursuant to directions furnished under Section 15.02 hereof, subject to Section 15.08 hereof); 
 (d) not be responsible for any action taken or omitted to be taken by it hereunder or under any other document or instrument referred to or provided for herein or in connection herewith or therewith, except for its
own gross negligence or willful misconduct; and 
 (e) not be required to advise any party as to selling or retaining, or taking or
refraining from taking any action with respect to, any securities or other property deposited hereunder. 
 Subject to the foregoing, during
the term of this Agreement, the Collateral Agent, the Custodial Agent and the Securities Intermediary shall take all reasonable action in connection with the safekeeping and preservation of the Collateral hereunder as determined by industry
standards. 
 No provision of this Agreement shall require the Collateral Agent, the Custodial Agent or the Securities Intermediary to expend
or risk its own funds or otherwise incur any financial liability in the performance of any of its duties hereunder. In no event shall the Collateral Agent, the Custodial Agent or the Securities Intermediary be liable for any amount in excess of the
Value of the Collateral. 
 Section 15.02. Instructions of the Company. The Company shall have the right, by one or more
written instruments executed and delivered to the Collateral Agent, to direct the time, method and place of conducting any proceeding for the realization of any right or remedy available to the Collateral Agent, or of exercising any power conferred
on the Collateral Agent, or to direct the taking or refraining from taking of any action authorized by this Agreement; provided, however, that (i) such direction shall not conflict with 

  

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the provisions of any law or of this Agreement or involve the Collateral Agent in personal liability and (ii) the Collateral Agent shall be indemnified
to its satisfaction as provided herein. Nothing contained in this Section 15.02 shall impair the right of the Collateral Agent in its discretion to take any action or omit to take any action which it deems proper and which is not inconsistent
with such direction. None of the Collateral Agent, the Custodial Agent or the Securities Intermediary has any obligation or responsibility to file UCC financing statements. 
 Section 15.03. Reliance by Collateral Agent, Custodial Agent and Securities Intermediary. Each of the Securities Intermediary, the
Custodial Agent and the Collateral Agent shall be entitled to rely conclusively upon any certification, order, judgment, opinion, notice or other written communication (including, without limitation, any thereof by telecopy) believed by it to be
genuine and correct and to have been signed or sent by or on behalf of the Person or Persons specified therein (without being required to determine the correctness of any fact stated therein, or the substance or sufficiency thereof) and consult with
and conclusively rely upon advice, opinions and statements of legal counsel and other experts selected by the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, as well as on any Officers’ Certificates and
any Opinions of Counsel delivered therewith. As to any matters not expressly provided for by this Agreement, the Collateral Agent, the Custodial Agent and the Securities Intermediary shall in all cases be fully protected in acting, or in refraining
from acting, hereunder in accordance with instructions given by the Company in accordance with this Agreement. 
 Section 15.04.
Certain Rights. (a) Whenever in the administration of the provisions of this Agreement the Collateral Agent, the Custodial Agent or the Securities Intermediary shall deem it necessary or desirable that a matter be proved or
established prior to taking or suffering any action to be taken hereunder, such matter (unless other evidence in respect thereof be herein specifically prescribed) may, in the absence of gross negligence or bad faith on the part of the Collateral
Agent, the Custodial Agent or the Securities Intermediary, be deemed to be conclusively proved and established by a certificate signed by one of the Company’s officers, and delivered to the Collateral Agent, the Custodial Agent or the
Securities Intermediary and such certificate, in the absence of gross negligence or bad faith on the part of the Collateral Agent, the Custodial Agent or the Securities Intermediary, shall be full warrant to the Collateral Agent, the Custodial Agent
or the Securities Intermediary for any action taken, suffered or omitted by it under the provisions of this Agreement upon the faith thereof. 
 (b) The Collateral Agent, the Custodial Agent or the Securities Intermediary shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement, instrument, opinion, report, notice,
request, consent, entitlement order, approval or other paper or document. 
 Section 15.05. Merger, Conversion, Consolidation or
Succession to Business. Any corporation into which the Collateral Agent, the Custodial Agent or the Securities Intermediary may be merged or converted or with which it may be consolidated, or any corporation resulting from any merger,
conversion or consolidation to which the Collateral Agent, the Custodial Agent or the Securities Intermediary shall be a party, or any corporation succeeding to all or substantially all of the corporate trust business of the Collateral Agent, the
Custodial Agent or the Securities Intermediary shall be the successor of the Collateral Agent, the Custodial 

  

 85 

 
Agent or the Securities Intermediary hereunder without the execution or filing of any paper with any party hereto or any further act on the part of any of
the parties hereto except where an instrument of transfer or assignment is required by law to effect such succession, anything herein to the contrary notwithstanding. 
 Section 15.06. Rights in Other Capacities. The Collateral Agent, the Custodial Agent and the Securities Intermediary and their affiliates may (without having to account therefor to the Company) accept
deposits from, lend money to, make their investments in and generally engage in any kind of banking, trust or other business with the Purchase Contract Agent, any other Person interested herein and any Holder of HiMEDS Units (and any of their
respective subsidiaries or affiliates) as if it were not acting as the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, and the Collateral Agent, the Custodial Agent, the Securities Intermediary and their
affiliates may accept fees and other consideration from the Purchase Contract Agent and any Holder of HiMEDS Units without having to account for the same to the Company; provided that each of the Securities Intermediary, the Custodial Agent
and the Collateral Agent covenants and agrees with the Company that it shall not accept, receive or permit there to be created in favor of itself and shall take no affirmative action to permit there to be created in favor of any other Person, any
security interest, lien or other encumbrance of any kind in or upon the Collateral other than the lien created by the Pledge. 
 Section 15.07. Non-reliance on Collateral Agent, the Custodial Agent and Securities Intermediary. None of the Securities Intermediary, the Custodial Agent or the Collateral Agent shall be required to keep itself informed as
to the performance or observance by the Purchase Contract Agent or any Holder of HiMEDS Units of this Agreement, the HiMEDS Units or any other document referred to or provided for herein or therein or to inspect the properties or books of the
Purchase Contract Agent or any Holder of HiMEDS Units. None of the Collateral Agent, the Custodial Agent or the Securities Intermediary shall have any duty or responsibility to provide the Company with any credit or other information concerning the
affairs, financial condition or business of the Purchase Contract Agent or any Holder of HiMEDS Units (or any of their respective affiliates) that may come into the possession of the Collateral Agent, the Custodial Agent or the Securities
Intermediary or any of their respective affiliates. 
 Section 15.08. Compensation and Indemnity. The Company agrees to:

 (a) pay the Collateral Agent, the Custodial Agent and the Securities Intermediary from time to time such compensation as shall be agreed in
writing between the Company and the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, for all services rendered by them hereunder; 
 (b) indemnify and hold harmless the Collateral Agent, the Custodial Agent, the Securities Intermediary and each of their respective directors, officers, agents and employees (collectively, the “Indemnified
Parties”), from and against any and all claims, liabilities, losses, damages, fines, penalties and expenses (including reasonable fees and expenses of counsel) (collectively, “Losses” and individually, a
“Loss”) that may be imposed on, incurred by, or asserted against, the Indemnified Parties or any of them for following any instructions or other directions upon which any of the Collateral Agent, the Custodial Agent or the
Securities 

  

 86 

 
Intermediary is entitled to rely pursuant to the terms of this Agreement, provided that the Collateral Agent, the Custodial Agent or the Securities
Intermediary has not acted with gross negligence or engaged in willful misconduct or bad faith with respect to the specific Loss against which indemnification is sought; and 
 (c) in addition to and not in limitation of paragraph (b) immediately above, indemnify and hold the Indemnified Parties and each of them harmless
from and against any and all Losses that may be imposed on, incurred by or asserted against, the Indemnified Parties or any of them in connection with or arising out of the Collateral Agent’s, the Custodial Agent’s or the Securities
Intermediary’s acceptance or performance of its powers and duties under this Agreement, provided the Collateral Agent, the Custodial Agent or the Securities Intermediary has not acted with gross negligence or engaged in willful
misconduct or bad faith with respect to the specific Loss against which indemnification is sought. 
 The provisions of this Section and
Section 15.14 shall survive the resignation or removal of the Collateral Agent, the Custodial Agent or the Securities Intermediary and the termination of this Agreement. 
 Section 15.09. Failure to Act. In the event of any ambiguity in the provisions of this Agreement or any dispute between or conflicting
claims by or among the parties hereto or any other Person with respect to any funds or property deposited hereunder, then at its sole option, each of the Collateral Agent, the Custodial Agent and the Securities Intermediary shall be entitled, after
prompt notice to the Company and the Purchase Contract Agent, to refuse to comply with any and all claims, demands or instructions with respect to such property or funds so long as such dispute or conflict shall continue, and the Collateral Agent,
the Custodial Agent and the Securities Intermediary shall not be or become liable in any way to any of the parties hereto for its failure or refusal to comply with such conflicting claims, demands or instructions. The Collateral Agent, the Custodial
Agent and the Securities Intermediary shall be entitled to refuse to act until either: 
 (a) such conflicting or adverse claims or demands
shall have been finally determined by a court of competent jurisdiction or settled by agreement between the conflicting parties as evidenced in a writing satisfactory to the Collateral Agent, the Custodial Agent or the Securities Intermediary; or

 (b) the Collateral Agent, the Custodial Agent or the Securities Intermediary shall have received security or an indemnity satisfactory to
it sufficient to save it harmless from and against any and all loss, liability or reasonable out-of-pocket expense which it may incur by reason of its acting. 
 The Collateral Agent, the Custodial Agent and the Securities Intermediary may in addition elect to commence an interpleader action or seek other judicial relief or orders as the Collateral Agent, the Custodial Agent
or the Securities Intermediary may deem necessary. Notwithstanding anything contained herein to the contrary, none of the Collateral Agent, the Custodial Agent or the Securities Intermediary shall be required to take any action that is in its
opinion contrary to law or to the terms of this Agreement, or which would in its opinion subject it or any of its officers, employees or directors to liability. 
  

 87 

 Section 15.10. Resignation and Removal of Collateral Agent, the Custodial Agent and the
Securities Intermediary. (a) Subject to the appointment and acceptance of a successor Collateral Agent, Custodial Agent or Securities Intermediary as provided below: 
 (i) the Collateral Agent, the Custodial Agent or the Securities Intermediary may resign at any time by giving notice thereof to the
Company and the Purchase Contract Agent as attorney-in-fact for the Holders of HiMEDS Units; 
 (ii) the Collateral Agent, the
Custodial Agent or the Securities Intermediary may be removed at any time by the Company; and 
 (iii) if the Collateral
Agent, the Custodial Agent or the Securities Intermediary fails to perform any of its material obligations hereunder in any material respect for a period of not less than 20 days after receiving written notice of such failure by the Purchase
Contract Agent and such failure shall be continuing, the Collateral Agent, the Custodial Agent and the Securities Intermediary may be removed by the Purchase Contract Agent, acting at the direction of the Holders of HiMEDS Units. 
 The Purchase Contract Agent shall promptly notify the Company of any removal of the Collateral Agent, the Custodial Agent or the Securities Intermediary
pursuant to clause (iii) of this Section 15.10. Upon any such resignation or removal, the Company shall have the right to appoint a successor Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, which shall not
be an Affiliate of the Purchase Contract Agent. If no successor Collateral Agent, Custodial Agent or Securities Intermediary shall have been so appointed and shall have accepted such appointment within 30 days after the retiring Collateral
Agent’s, Custodial Agent’s or Securities Intermediary’s giving of notice of resignation or the Company’s or the Purchase Contract Agent’s giving notice of such removal, then the retiring or removed Collateral Agent,
Custodial Agent or Securities Intermediary may petition any court of competent jurisdiction, at the expense of the Company, for the appointment of a successor Collateral Agent, Custodial Agent or Securities Intermediary. The Collateral Agent, the
Custodial Agent and the Securities Intermediary shall each be a bank or a national banking association which has an office (or an agency office) in New York City with a combined capital and surplus of at least $50,000,000. Upon the acceptance
of any appointment as Collateral Agent, Custodial Agent or Securities Intermediary hereunder by a successor Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, such successor Collateral Agent, Custodial Agent or
Securities Intermediary, as the case may be, shall thereupon succeed to and become vested with all the rights, powers, privileges and duties of the retiring Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, and the
retiring Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, shall take all appropriate action, subject to payment of any amounts then due and payable to it hereunder, to transfer any money and property held by it
hereunder (including the Collateral) to such successor. The retiring Collateral Agent, Custodial Agent or Securities Intermediary shall, upon such succession, be discharged from its duties and obligations as Collateral Agent, Custodial Agent or
Securities Intermediary hereunder. After any retiring Collateral Agent’s, Custodial Agent’s or Securities Intermediary’s resignation hereunder as Collateral Agent, Custodial Agent or Securities Intermediary, the provisions of this
Article 15 shall continue in effect for its benefit in respect of any actions taken or omitted to be taken by it while it was acting as the Collateral Agent, the Custodial Agent or the Securities Intermediary. Any 

  

 88 

 
resignation or removal of the Collateral Agent, the Custodial Agent or the Securities Intermediary hereunder, at a time when such Person is acting as the
Collateral Agent, the Custodial Agent or the Securities Intermediary, shall be deemed for all purposes of this Agreement as the simultaneous resignation or removal of the Collateral Agent, the Securities Intermediary or the Custodial Agent, as the
case may be. 
 (b) Because The Bank of New York is serving as the Collateral Agent hereunder and as the Purchase Contract Agent hereunder,
if an event of default occurs hereunder The Bank of New York will resign as the Collateral Agent, Custodial Agent and the Securities Intermediary, but continue to act as the Purchase Contract Agent. A successor Collateral Agent, Custodial Agent
and Securities Intermediary will be appointed in accordance with the terms hereof. 
 Section 15.11. Right to Appoint Agent or
Advisor. The Collateral Agent shall have the right to appoint agents or advisors in connection with any of its duties hereunder, and the Collateral Agent shall not be liable for any action taken or omitted by, or in reliance upon the advice
of, such agents or advisors selected in good faith. The appointment of agents pursuant to this Section 15.11 shall be subject to prior written consent of the Company, which consent shall not be unreasonably withheld. 
 Section 15.12. Survival. The provisions of this Article 15 shall survive termination of this Agreement and the resignation or
removal of the Collateral Agent, the Custodial Agent or the Securities Intermediary. 
 Section 15.13. Exculpation. Anything
contained in this Agreement to the contrary notwithstanding, in no event shall the Collateral Agent, the Custodial Agent or the Securities Intermediary or their officers, directors, employees or agents be liable under this Agreement for indirect,
special, punitive, or consequential loss or damage of any kind whatsoever, including, but not limited to, lost profits, whether or not the likelihood of such loss or damage was known to the Collateral Agent, the Custodial Agent or the Securities
Intermediary, or any of them and regardless of the form of action. Section 7.03(m) hereof is hereby made applicable to the Collateral Agent, the Custodial Agent and the Securities Intermediary as if they and each of them were named therein
in place of the Purchase Contract Agent. 
 Section 15.14. Expenses, Etc. The Company agrees to reimburse the Collateral Agent,
the Custodial Agent and the Securities Intermediary for: 
 (a) all reasonable costs and expenses of the Collateral Agent, the Custodial Agent
and the Securities Intermediary (including, without limitation, the reasonable fees and expenses of counsel to the Collateral Agent, the Custodial Agent and the Securities Intermediary), in connection with (i) the negotiation, preparation,
execution and delivery or performance of this Agreement and (ii) any modification, supplement or waiver of any of the terms of this Agreement; 
 (b) all reasonable costs and expenses of the Collateral Agent, the Custodial Agent and the Securities Intermediary (including, without limitation, reasonable fees and expenses of counsel) in connection with (i) any enforcement or
proceedings resulting or incurred in connection with causing any Holder of HiMEDS Units to satisfy its obligations under the Purchase Contracts forming a part of the HiMEDS Units and (ii) the enforcement of this Section 15.14; 

 

 89 

 (c) all transfer, stamp, documentary or other similar taxes, assessments or charges levied by any
governmental or revenue authority in respect of this Agreement or any other document referred to herein and all costs, expenses, taxes, assessments and other charges incurred in connection with any filing, registration, recording or perfection of
any security interest contemplated hereby; 
 (d) all reasonable fees and expenses of any agent or advisor appointed by the Collateral Agent
and consented to by the Company under Section 15.11 of this Agreement; and 
 (e) any other out-of-pocket costs and expenses reasonably
incurred by the Collateral Agent, the Custodial Agent and the Securities Intermediary in connection with the performance of their duties hereunder. 
 ARTICLE 16 
 MISCELLANEOUS 
 Section 16.01. Security Interest Absolute. All rights of the Collateral Agent and security interests hereunder, and all obligations of the Holders from time to time hereunder, shall be absolute and unconditional
irrespective of: 
 (a) any lack of validity or enforceability of any provision of the Purchase Contracts or the HiMEDS Units or any other
agreement or instrument relating thereto; 
 (b) any change in the time, manner or place of payment of, or any other term of, or any increase
in the amount of, all or any of the obligations of Holders of the HiMEDS Units under the related Purchase Contracts, or any other amendment or waiver of any term of, or any consent to any departure from any requirement of, the Purchase Contract
Agreement or any Purchase Contract or any other agreement or instrument relating thereto; or 
 (c) any other circumstance which might
otherwise constitute a defense available to, or discharge of, a borrower, a guarantor or a pledgor. 
 Section 16.02. Notice of
Termination Event. Upon the occurrence of a Termination Event, the Company shall deliver written notice to the Purchase Contract Agent, the Collateral Agent and the Securities Intermediary. Upon the written request of the Collateral
Agent or the Securities Intermediary, the Company shall inform such party whether or not a Termination Event has occurred. 
 [SIGNATURES ON
THE FOLLOWING PAGE] 
  

 90 

 IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be duly executed as of the day and
year first above written. 
  

									
	BANKUNITED FINANCIAL CORPORATION	 		 	THE BANK OF NEW YORK, as Purchase Contract Agent and as attorney-in-fact of the Holders from time to time of the HiMEDS Units
					
		 		 		 	By:	 	 /s/ Stacey B. Poindexter

	By:	 	 /s/ Humberto Lopez
	 		 	Name:	 	Stacey B. Poindexter
	Name:	 	Humberto Lopez	 		 	Title:	 	Assistant Vice President
	Title:	 	 Senior Executive Vice President and
 Chief Financial
Officer
	 		 		 	
				
	Address for Notices:	 		 		 	Address for Notices:
				
	 BankUnited Corporation
 255 Alhambra
Circle
 Coral Gables, FL 33134
 Telecopier No.:
(305) 231-6630
 Attention: Humberto Lopez
	 		 		 	 The Bank of New York
 101 Barclay Street - 8W

New York, NY 10286
 Telecopier No.: (212) 815-3272/5707
 Attention: Corporate Trust Administration

				
	 THE BANK OF NEW YORK
 as Collateral Agent,
Custodial Agent and
 Securities Intermediary
	 		 		 	
					
	By:	 	 /s/ Stacey B. Poindexter
	 		 		 	
	Name:	 	Stacey B. Poindexter	 		 		 	
	Title:	 	Assistant Vice President	 		 		 	
				
	Address for Notices:	 		 		 	
				
	 The Bank of New York
 101 Barclay Street -
8W
 New York, NY 10286
 Telecopier No.:
(212) 815-3272/5707
 Attention: Corporate Trust Administration
	 		 		 	

  

 91 

 EXHIBIT A 
 (FORM OF FACE OF CORPORATE HiMEDS UNIT CERTIFICATE) 
 [For inclusion in Global Certificates only -
THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AND PLEDGE AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF CEDE & CO., AS THE NOMINEE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK
CORPORATION (THE “DEPOSITARY”), THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY. THIS CERTIFICATE IS EXCHANGEABLE FOR CERTIFICATES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE
LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AND PLEDGE AGREEMENT AND NO TRANSFER OF THIS CERTIFICATE (OTHER THAN A TRANSFER OF THIS CERTIFICATE AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES. 
 UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] 
  

			
	No.	  	CUSIP No. 06652B 806
	Number of Corporate HiMEDS Units:	  	

 BANKUNITED FINANCIAL CORPORATION 
 Corporate HiMEDS Units 
 This Corporate HiMEDS Units Certificate certifies that
                     is the registered Holder of the number of Corporate HiMEDS Units set forth above [For inclusion in Global Certificates
only – or such other number of Corporate HiMEDS Units reflected in the Schedule of Increases or Decreases in Global Certificate attached hereto]. Each Corporate HiMEDS Unit consists of (i) beneficial ownership by the Holder of a 1/20,
or 5.00%, undivided beneficial ownership interest in $1,000 principal amount of Senior Note, subject to the Pledge of such Senior Note by the Holder pursuant to the Purchase Contract and Pledge Agreement and (ii) the rights and obligations of
the Company and the Holder under one Purchase Contract. All capitalized terms used herein which are defined in the Purchase Contract and Pledge Agreement (as defined on the reverse hereof) have the meaning set forth therein. 
  

 A-1 

 Pursuant to the Purchase Contract and Pledge Agreement, the Senior Note constituting part of each
Corporate HiMEDS Unit evidenced hereby have been pledged to the Collateral Agent, for the benefit of the Company, to secure the obligations of the Holder under the Purchase Contract comprising part of such Corporate HiMEDS Unit. 
 The Purchase Contract and Pledge Agreement provides that all payments of the principal amount with respect to any of the Pledged Senior Notes (as defined
in the Purchase Contract and Pledge Agreement) or interest or distributions on any Pledged Senior Notes constituting part of the Corporate HiMEDS Units received by the Securities Intermediary shall be paid by wire transfer in same day funds
(i) in the case of (A) interest on Pledged Senior Notes, and (B) any payments of the principal amount of any Senior Notes that have been released from the Pledge pursuant to the Purchase Contract and Pledge Agreement, to the Purchase
Contract Agent to the account designated by the Purchase Contract Agent, on the Business Day such payment is received by the Securities Intermediary (provided that in the event such payment is received by the Securities Intermediary on a day that is
not a Business Day or after 11:00 a.m., New York City time, on a Business Day, then such payment shall be made no later than 10:30 a.m., New York City time, on the next succeeding Business Day) and (ii) in the case of payments received in
connection with a remarketing, the principal amount of the Pledged Senior Notes following a successful remarketing to the Company on the Purchase Contract Settlement Date (as described herein) in accordance with the terms of the Purchase Contract
and Pledge Agreement, in full satisfaction of the respective obligations of the Holders of the Corporate HiMEDS Units of which such Pledged Senior Notes are a part under the Purchase Contracts forming a part of such Corporate HiMEDS
Units. Interest on the Senior Notes forming part of a Corporate HiMEDS Units evidenced hereby, which are payable quarterly in arrears on February 17, May 17, August 17, and November 17 of each year, commencing
August 17, 2007 (each, a “Payment Date”), shall, subject to receipt thereof by the Purchase Contract Agent from the Securities Intermediary, be paid to the Person in whose name this Corporate HiMEDS Units Certificate (or a
Predecessor Corporate HiMEDS Units Certificate) is registered at the close of business on the Record Date for such Payment Date.
 Each
Purchase Contract evidenced hereby obligates the Holder of this Corporate HiMEDS Units Certificate to purchase, and the Company to sell, on May 17, 2010 (the “Purchase Contract Settlement Date”), at a price equal to $50.00 (the
“Stated Amount”), a number of newly issued shares of common stock, par value $0.01 per share (“Common Stock”), of the Company, equal to the Settlement Rate, unless on or prior to the Purchase Contract Settlement
Date there shall have occurred a Termination Event or an Early Settlement or Merger Early Settlement with respect to such Purchase Contract, all as provided in the Purchase Contract and Pledge Agreement and more fully described on the reverse
hereof. The Purchase Price for the shares of Common Stock purchased pursuant to each Purchase Contract evidenced hereby, if not paid earlier, shall be paid on the Purchase Contract Settlement Date by application of payment received in respect
of the principal amount with respect to any Pledged Senior Notes pursuant to the Remarketing pledged to secure the obligations under such Purchase Contract of the Holder of the Corporate HiMEDS Units of which such Purchase Contract is a part or by
the Company exercising its rights as a secured party with respect to such Pledged Senior Notes. 
  

 A-2 

 Each Purchase Contract evidenced hereby obligates the holder to agree, for tax purposes, to treat (1)
each Corporate HiMEDS Unit as an investment unit consisting of an interest in a Senior Note and a Purchase Contract, (2) the initial fair market value of each Senior Note as $50 and the initial fair market value of each Purchase Contract as $0 and
to allocate the purchase price for each Corporate HiMEDS Unit accordingly, (3) the Senior Notes as indebtedness for tax purposes, and (4) the Holder as the owner of the applicable interests in the Collateral Account, including the Senior Notes.

 The Company shall pay, on each Payment Date, in respect of each Purchase Contract forming part of a Corporate HiMEDS Unit evidenced
hereby, an amount (the “Contract Adjustment Payments”) equal to 0.38% per year of the Stated Amount, computed on the basis of a 360-day year consisting of twelve 30-day months. Such Contract Adjustment Payments shall be
payable to the Person in whose name this Corporate HiMEDS Units Certificate is registered at the close of business on the Record Date for such Payment Date. The Company may, at its option, defer such Contract Adjustment Payments as described in
the Purchase Contract and Pledge Agreement. 
 The Company shall pay, on each Payment Date, the Contract Adjustment Payments payable in
respect of each Purchase Contract to the Person in whose name the Corporate HiMEDS Units Certificate evidencing such Purchase Contract is registered at the close of business on the Record Date for such Payment Date. Contract Adjustment Payments
will be payable at the office of the Purchase Contract Agent in New York City. If the book-entry system for the Corporate HiMEDS Units has been terminated, the Contract Adjustment Payments will be payable, at the option of the Company, by check
mailed to the address of the Person entitled thereto at such Person’s address as it appears on the Security Register, or by wire transfer to the account designated by such Person by a prior written notice to the Purchase Contract Agent.

 Reference is hereby made to the further provisions 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 Purchase Contract
Agent by manual signature, this Corporate HiMEDS Units Certificate shall not be entitled to any benefit under the Purchase Contract and Pledge Agreement or be valid or obligatory for any purpose. 
  

 A-3 

 IN WITNESS WHEREOF, the Company and the Holder specified above have caused this instrument to be duly
executed. 
  

					
	BANKUNITED FINANCIAL CORPORATION
		
	By:	 	  

	Name:	 	
	Title:	 	
	
	HOLDER SPECIFIED ABOVE (as to obligations of such Holder under the Purchase Contracts)
		
	By:	 	 THE BANK OF NEW YORK,
 not individually but
solely as Attorney in-Fact of such Holder

			
		 	By:	 	  

		 	Name:	 	
		 	Title:	 	

  

 A-4 

 CERTIFICATE OF AUTHENTICATION 
 OF PURCHASE CONTRACT AGENT 
 This is one of the Corporate HiMEDS Units Certificates referred to in the
within mentioned Purchase Contract and Pledge Agreement. 
  

			
	 THE BANK OF NEW YORK,
 as Purchase Contract
Agent

		
	By:	 	  

		 	Authorized Officer

 Dated: 
  

 A-5 

 (FORM OF REVERSE OF CORPORATE HiMEDS UNIT CERTIFICATE) 
 Each Purchase Contract evidenced hereby is governed by a Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (as may be supplemented
from time to time, the “Purchase Contract and Pledge Agreement”), among the Company, The Bank of New York, as Purchase Contract Agent (including its successors hereunder, the “Purchase Contract Agent”) and The Bank
of New York, as Collateral Agent, Custodial Agent and Securities Intermediary, to which Purchase Contract and Pledge Agreement and supplemental agreements thereto reference is hereby made for a description of the respective rights, limitations of
rights, obligations, duties and immunities thereunder of the Purchase Contract Agent, the Company, and the Holders and of the terms upon which the Corporate HiMEDS Units Certificates are, and are to be, executed and delivered. 
 Each Purchase Contract evidenced hereby obligates the Holder of this Corporate HiMEDS Units Certificate to purchase, and the Company to sell, on the
Purchase Contract Settlement Date at a price equal to the Stated Amount (the “Purchase Price”), a number of shares of Common Stock equal to the Settlement Rate (as defined in the Purchase Contract and Pledge Agreement), unless an
Early Settlement, a Merger Early Settlement or a Termination Event with respect to the HiMEDS Units of which such Purchase Contract is a part shall have occurred. 
 In accordance with the terms of the Purchase Contract and Pledge Agreement, the Holder of this Corporate HiMEDS Units Certificate may pay the Purchase Price for the shares of Common Stock purchased pursuant to each
Purchase Contract evidenced hereby by effecting a Cash Settlement, an Early Settlement or, if applicable, a Merger Early Settlement or from the proceeds of a Remarketing of the related Pledged Senior Notes. A Holder of Corporate HiMEDS Units who has
not effected an Early Settlement or, if applicable, a Merger Early Settlement and who (1) does not, on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, notify the Purchase
Contract Agent of its intention to effect a Cash Settlement, or who does so notify the Purchase Contract Agent but fails to make an effective Cash Settlement prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding
the Remarketing Date, or (2) on or prior to 4:00 p.m., New York City time, on the second Business Day prior to the Remarketing Date, does not make an effective Early Settlement, shall pay the Purchase Price, less the amount of any Deferred
Contract Adjustment Payments payable to such Holder, for the shares of Common Stock to be delivered under the related Purchase Contract from the proceeds of the sale of the related Pledged Senior Notes held by the Collateral Agent in the
Remarketing. In the event of a Last Failed Remarketing, the Purchase Price shall be satisfied by (A) the Pledged Senior Notes being retained and cancelled or (B) the Pledged Senior Notes being sold, in either case, in full satisfaction of
the Holders’ obligations under the Purchase Contracts.
 As provided in the Purchase Contract and Pledge Agreement, upon the occurrence
of a Last Failed Remarketing, the Collateral Agent, for the benefit of the Company, shall exercise its rights as secured creditor in full satisfaction of a Holder’s Obligation under the Purchase Agreement to pay the Purchase Price. 

 

 A-6 

 The Company shall not be obligated to issue any shares of Common Stock in respect of a Purchase Contract
or deliver any certificates therefor to the Holder unless it shall have received payment of the aggregate Purchase Price, less any Deferred Contract Adjustment Payments, for the shares of Common Stock to be purchased thereunder in the manner set
forth in the Purchase Contract and Pledge Agreement or become entitled to exercise its rights as a secured party in the manner set forth in the Purchase Contract Agreement. If, as provided in the Purchase Contract Agreement, upon the occurrence of a
Last Failed Remarketing the Collateral Agent, for the benefit of the Company, exercises its rights as a secured creditor with respect to the Pledged Notes related to this Corporate HiMEDS Units Certificate, any accrued and unpaid interest on such
Pledged Notes will become payable by the Company to the Holder of this Corporate HiMEDS Units Certificate in the manner provided for in the Purchase Contract Agreement. 
 Each Purchase Contract evidenced hereby and all obligations and rights of the Company and the Holder thereunder shall terminate if a Termination Event shall occur. Upon the occurrence of a Termination Event, the
Company shall give written notice to the Purchase Contract Agent and to the Holders, at their addresses as they appear in the Security Register. Upon and after the occurrence of a Termination Event, the Collateral Agent shall release the
Pledged Senior Notes forming a part of each Corporate HiMEDS Unit from the Pledge. A Corporate HiMEDS Unit shall thereafter represent the right to receive the Senior Note forming a part of such Corporate HiMEDS Units in accordance with the
terms of the Purchase Contract and Pledge Agreement. 
 Under the terms of the Purchase Contract and Pledge Agreement, the Purchase Contract
Agent will be entitled to exercise the voting and any other consensual rights pertaining to the Pledged Senior Notes, but only to the extent instructed in writing by the Holders. Upon receipt of notice of any meeting at which holders of Senior
Notes are entitled to vote or upon any solicitation of consents, waivers or proxies of holders of Senior Notes, the Purchase Contract Agent shall, as soon as practicable thereafter, mail, first class, postage pre-paid, to the Corporate HiMEDS Units
Holders the notice required by the Purchase Contract and Pledge Agreement: 
 (1) containing such information as is contained
in the notice or solicitation; 
 (2) stating that each Holder on the record date set by the Purchase Contract Agent therefor
(which, to the extent possible, shall be the same date as the record date for determining the holders of Senior Notes, as the case may be, entitled to vote) shall be entitled to instruct the Purchase Contract Agent as to the exercise of the voting
rights pertaining to the Senior Notes underlying such Holder’s Corporate HiMEDS Units; and 
 (3) stating the manner in
which such instructions may be given. 
 The Corporate HiMEDS Units Certificates are issuable only in registered form and only in
denominations of a single Corporate HiMEDS Unit and any integral multiple thereof. The transfer of any Corporate HiMEDS Units Certificate will be registered and Corporate HiMEDS Units Certificates may be exchanged as provided in the Purchase
Contract and Pledge Agreement. A Holder who elects to substitute a Treasury Security for a Senior Note, thereby creating Treasury HiMEDS Units, shall be responsible for any fees or expenses payable in connection therewith. 
  

 A-7 

 Subject to the conditions set forth in the Purchase Contract and Pledge Agreement, the Holder of
Corporate HiMEDS Units may substitute, at any time prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, for the Pledged Senior Notes securing such Holder’s obligations under the related
Purchase Contracts, Treasury Securities in an aggregate principal amount at maturity equal to the aggregate principal amount of the Pledged Senior Notes in accordance with the terms of the Purchase Contract and Pledge Agreement. From and after
such Collateral Substitution, each HiMEDS Unit for which such Pledged Treasury Securities secures the Holder’s obligation under the Purchase Contract shall be referred to as a “Treasury HiMEDS Unit”. A Holder may make such
Collateral Substitution only in integral multiples of 20 Corporate HiMEDS Units. 
 The Purchase Contracts and all obligations and rights of
the Company and the Holders thereunder, including, without limitation, the rights of the Holders to receive and the obligation of the Company to pay any Contract Adjustment Payments, shall immediately and automatically terminate, without the
necessity of any notice or action by any Holder, the Purchase Contract Agent or the Company, if, on or prior to the Purchase Contract Settlement Date, a Termination Event shall have occurred. Upon the occurrence of a Termination Event, the
Company shall promptly but in no event later than two Business Days thereafter give written notice to the Purchase Contract Agent, the Collateral Agent and the Holders, at their addresses as they appear in the Security Register. Upon and after
the occurrence of a Termination Event, the Collateral Agent shall release the Senior Notes from the Pledge in accordance with the provisions of the Purchase Contract and Pledge Agreement. A Corporate HiMEDS Unit shall thereafter represent the
right to receive the Senior Note forming a part of such Corporate HiMEDS Units in accordance with the terms of the Purchase Contract and Pledge Agreement. 
 Subject to and upon compliance with the provisions of the Purchase Contract and Pledge Agreement, at the option of the Holder thereof, Purchase Contracts underlying HiMEDS Units may be settled early at any time prior
to 4:00 p.m., New York City time, on the Business Day immediately preceding the first Trading Day of the Observation Period (“Early Settlement”) as provided in the Purchase Contract and Pledge Agreement. 
 Upon Early Settlement of Purchase Contracts by a Holder of the related HiMEDS Units, the Pledged Senior Notes underlying such HiMEDS Units shall be
released from the Pledge as provided in the Purchase Contract and Pledge Agreement and the Holder shall be entitled to receive a number of shares of Common Stock on account of each Purchase Contract forming part of a Corporate HiMEDS Unit as to
which Early Settlement is effected equal to the Minimum Settlement Rate. 
 Upon the occurrence of a Cash Merger, a Holder of Corporate
HiMEDS Units may effect Merger Early Settlement of the Purchase Contract underlying such Corporate HiMEDS Units pursuant to the terms of Section 5.04(b)(ii) of the Purchase Contract and Pledge Agreement. Upon Merger Early Settlement of
Purchase Contracts by a Holder of the related Corporate HiMEDS Units, the Pledged Senior Notes underlying such Corporate HiMEDS Units shall be released from the Pledge as provided in the Purchase Contract and Pledge Agreement. 
 Upon registration of transfer of this Corporate HiMEDS Units Certificate, the transferee shall be bound (without the necessity of any other action on the
part of such transferee, except as may be required by the Purchase Contract Agent pursuant to the Purchase 

  

 A-8 

 
Contract and Pledge Agreement), under the terms of the Purchase Contract and Pledge Agreement and the Purchase Contracts evidenced hereby and the transferor
shall be released from the obligations under the Purchase Contracts evidenced by this Corporate HiMEDS Units Certificate. The Company covenants and agrees, and the Holder, by its acceptance hereof, likewise covenants and agrees, to be bound by
the provisions of this paragraph. 
 The Holder of this Corporate HiMEDS Units Certificate, by its acceptance hereof, authorizes the Purchase
Contract Agent to enter into and perform the related Purchase Contracts forming part of the Corporate HiMEDS Units evidenced hereby on its behalf as its attorney-in-fact, expressly withholds any consent to the assumption (i.e., affirmance) of the
Purchase Contracts by the Company or its trustee in the event that the Company becomes the subject of a case under the Bankruptcy Code, agrees to be bound by the terms and provisions thereof, covenants and agrees to perform its obligations under
such Purchase Contracts, consents to the provisions of the Purchase Contract and Pledge Agreement, authorizes the Purchase Contract Agent to enter into and perform the Purchase Contract and Pledge Agreement on its behalf as its attorney-in-fact, and
consents to the Pledge of the Senior Notes underlying this Corporate HiMEDS Units Certificate pursuant to the Purchase Contract and Pledge Agreement. The Holder further covenants and agrees that, to the extent and in the manner provided in the
Purchase Contract and Pledge Agreement, but subject to the terms thereof, payments with respect to the aggregate principal amount of the Pledged Senior Notes on the Purchase Contract Settlement Date less any Deferred Contract Adjustment Payments
shall be paid by the Collateral Agent to the Company in satisfaction of such Holder’s obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such payments. 
 Subject to certain exceptions, the provisions of the Purchase Contract and Pledge Agreement may be amended with the consent of the Holders of a majority
of the Purchase Contracts. 
 The Purchase Contracts shall be governed by, and construed in accordance with, the laws of the State of New
York. 
 Prior to due presentment of this Certificate for registration of transfer, the Company, the Purchase Contract Agent and its
Affiliates and any agent of the Company or the Purchase Contract Agent may treat the Person in whose name this Corporate HiMEDS Units Certificate is registered as the owner of the Corporate HiMEDS Units evidenced hereby for the purpose of receiving
payments of interest payable on the Senior Notes, receiving payments of Contract Adjustment Payments (subject to any applicable record date), performance of the Purchase Contracts and for all other purposes whatsoever, whether or not any payments in
respect thereof be overdue and notwithstanding any notice to the contrary, and neither the Company, the Purchase Contract Agent nor any such agent shall be affected by notice to the contrary. 
 The Purchase Contracts shall not, prior to the settlement thereof, entitle the Holder to any of the rights of a holder of shares of Common Stock.

 A copy of the Purchase Contract and Pledge Agreement is available for inspection at the offices of the Purchase Contract Agent.

  

 A-9 

 ABBREVIATIONS 
 The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations: 
  

									
	TEN COM	  	as tenants in common	 		  	
					
	UNIF GIFT MIN ACT:	  	  	 	Custodian	 	  	  	
		  	(cust)	 		 	(minor)	  	
		  	Under Uniform Gifts to Minors Act of	  	
		  	  	  	
			
	TENANT:	  	as tenants by the entireties	  	
		
	JT TEN:	  	as joint tenants with right of survivorship and not as tenants in common

 Additional abbreviations may also be used though not in the above list. 
  

							
	 FOR VALUE RECEIVED, the undersigned hereby sell(s),
 assign(s) and transfer(s) unto
	 	  	 		 	
			
	  	 		 	
	(Please insert Social Security or Taxpayer I.D. or other Identifying Number of Assignee)	 		 	
			
	  	 		 	
	(Please Print or Type Name and Address Including Postal Zip Code of Assignee)	 		 	

 the within Corporate HiMEDS Units Certificates and all rights thereunder, hereby irrevocably constituting and
appointing attorney                             , to transfer said Corporate HiMEDS Units Certificates
on the books of BankUnited Financial Corporation, with full power of substitution in the premises. 
  

											
	Dated:	 	  
	 		 	Signature	  	  
	  	
				
		 		 		 	NOTICE: The signature to this assignment must correspond with the name as it appears upon the face of the within Corporate HiMEDS Units Certificates in every particular, without
alteration or enlargement or any change whatsoever.
				
		 	Signature Guarantee:	 	  
	  	

  

 A-10 

 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 Securities Exchange Act of 1934, as amended. 
  

 A-11 

 SETTLEMENT INSTRUCTIONS 
 The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon settlement of the Purchase Contracts underlying the number of Corporate HiMEDS Units evidenced by this Corporate HiMEDS
Units Certificate be registered in the name of, and delivered, together with a check in payment for any fractional share, to the undersigned at the address indicated below unless a different name and address have been indicated below. If shares
are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto. 
  

									
	Dated:	 	  
	 		 	Signature	 	
		 		 		 	Signature Guarantee:	 	  

		 		 		 	 (if assigned to another person)

 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 Securities Exchange Act of 1934, as amended. 
  

			
	If shares are to be registered in the name of and delivered to a Person other than the Holder, please (i) print such Person’s name and address and (ii) provide a guarantee of your
signature:	  	  

  

	
	  

	Name
	
	  

	Address
	
	  

	
	  

	
	  

	Social Security or other Taxpayer Identification Number, if any

  

 A-12 

 REGISTERED HOLDER 
 Please
print name and address of Registered Holder: 
  

	
	  

	 Name

	
	  

	 Address

	
	  

	
	  

	
	  

			
		
	 DTC Participant #:
	 	  

  

 A-13 

 ELECTION TO SETTLE EARLY/ MERGER EARLY SETTLEMENT 
 The undersigned Holder of this Corporate HiMEDS Units Certificate hereby irrevocably exercises the option to effect [Early Settlement] [Merger Early
Settlement] in accordance with the terms of the Purchase Contract and Pledge Agreement with respect to the Purchase Contracts underlying the number of Corporate HiMEDS Units evidenced by this Corporate HiMEDS Units Certificate specified
below. The option to effect [Early Settlement] [Merger Early Settlement] may be exercised only with respect to Purchase Contracts underlying Corporate HiMEDS Units in multiples of 20 Corporate HiMEDS Units or an integral multiple
thereof. The undersigned Holder directs that a certificate for shares of Common Stock or other securities deliverable upon such [Early Settlement] [Merger Early Settlement] be registered in the name of, and delivered, together with a check in
payment for any fractional share and any Corporate HiMEDS Units Certificate representing any Corporate HiMEDS Units evidenced hereby as to which [Early Settlement] [Merger Early Settlement] of the related Purchase Contracts is not effected, to the
undersigned at the address indicated below unless a different name and address have been indicated below. Pledged Senior Notes deliverable upon such [Early Settlement] [Merger Early Settlement] will be transferred in accordance with the
transfer instructions set forth below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto. 
  

											
	Dated:	 		 	  
	 		 	  

		 		 		 		 	Signature:	 	
		 		 		 		 	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 Securities Exchange Act of 1934, as amended. 
  

			
	 DTC
	 	
	 Participant No.:
	 	  

  

 A-14 

 Number of HiMEDS Units evidenced hereby as to which [Early Settlement] [Merger Early Settlement] of the
related Purchase Contracts is being elected: 
  

							
	If shares of Common Stock or Corporate HiMEDS Units Certificates are to be registered in the name of and delivered to and Pledged Senior Notes are to be transferred to a Person other than the
Holder, please print such Person’s name and address:	 		  	 REGISTERED HOLDER
  
  
 Please print name and address of Registered Holder:
  
  

			
	  
	 		  	  

	Name	 		  	Name
			
	  
	 		  	  

	Address	 		  	Address
			
	  
	 		  	  

			
	  
	 		  	  

			
	  
	 		  	  

				
	Social Security or other Taxpayer Identification Number, if any	 		  	DTC Participant #:	  	  

				
	  
	 		  		  	

 Transfer Instructions for Pledged Senior Notes transferable upon [Early Settlement] [Merger Early Settlement]:

  

 A-15 

 [TO BE ATTACHED TO GLOBAL CERTIFICATES] 
 SCHEDULE OF INCREASES OR DECREASES IN GLOBAL CERTIFICATE 
 The initial number of Corporate HiMEDS
Units evidenced by this Global Certificate is [3,200,000]. The following increases or decreases in this Global Certificate have been made: 
  

									
	 Date
	  	 Amount of increase
 in
 Number of
 Corporate
 Units evidenced by
 the
 Global Certificate
	  	 Amount of
 decrease in
 Number of
 Corporate
 Unites evidenced
 by the
 Global Certificate
	  	 Number of
 Corporate HiMEDS
 Units
 evidenced by this
 Global
 Certificate following
 such
 decrease or increase
	  	 Signature of
 authorized
 signatory of
 Purchase
 Contract Agent

  

 A-16 

 EXHIBIT B 
 (FORM OF FACE OF TREASURY HiMEDS UNIT CERTIFICATE) 
 [For inclusion in Global Certificate
only—THIS CERTIFICATE IS A GLOBAL CERTIFICATE WITHIN THE MEANING OF THE PURCHASE CONTRACT AND PLEDGE AGREEMENT HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF CEDE & CO., AS NOMINEE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK
CORPORATION (THE “DEPOSITARY”), THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY. THIS CERTIFICATE IS EXCHANGEABLE FOR CERTIFICATES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE DEPOSITARY OR ITS NOMINEE ONLY IN THE
LIMITED CIRCUMSTANCES DESCRIBED IN THE PURCHASE CONTRACT AND PLEDGE AGREEMENT AND NO TRANSFER OF THIS CERTIFICATE (OTHER THAN A TRANSFER OF THIS CERTIFICATE AS A WHOLE BY THE DEPOSITARY TO A NOMINEE OF THE DEPOSITARY OR BY A NOMINEE OF THE
DEPOSITARY TO THE DEPOSITARY OR ANOTHER NOMINEE OF THE DEPOSITARY) MAY BE REGISTERED EXCEPT IN LIMITED CIRCUMSTANCES. 
 UNLESS THIS
CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR SUCH OTHER NAME AS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY (AND ANY PAYMENT HEREON IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITARY), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR
OTHERWISE BY OR TO ANY PERSON IS WRONGFUL SINCE THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] 
  

					
	No.	 		 	CUSIP No. 06652B 889
	Number of Treasury HiMEDS Units:	 		 	

 BANKUNITED FINANCIAL CORPORATION 
 Treasury HiMEDS Units 
 This Treasury HiMEDS Units Certificate certifies that
                     is the registered Holder of the number of Treasury HiMEDS Units set forth above [For inclusion in Global Certificates
only—or such other number of Treasury HiMEDS Units reflected in the Schedule of Increases or Decreases in Global Certificate attached hereto]. Each Treasury HiMEDS Unit consists of (i) a 1/20, or 5.00%, undivided beneficial
ownership interest of a Treasury Security having a principal amount at maturity equal to $1,000, subject to the Pledge of such Treasury Security by such Holder pursuant to the Purchase Contract and Pledge Agreement, and (ii) the rights and
obligations of the Holder under one Purchase Contract with BankUnited Financial Corporation, a Florida corporation (the “Company”). All capitalized terms used herein which are defined in the Purchase Contract and Pledge
Agreement (as defined on the reverse hereof) have the meaning set forth therein. 
  

 B-1 

 Pursuant to the Purchase Contract and Pledge Agreement, the Treasury Securities constituting part of each
Treasury HiMEDS Unit evidenced hereby have been pledged to the Collateral Agent, for the benefit of the Company, to secure the obligations of the Holder under the Purchase Contract comprising part of such Treasury HiMEDS Unit. 
 Each Purchase Contract evidenced hereby obligates the Holder of this Treasury HiMEDS Units Certificate to purchase, and the Company, to sell, on
May 17, 2010 (the “Purchase Contract Settlement Date”), at a price equal to $50 (the “Stated Amount”), a number of newly issued shares of common stock, par value $0.01 per share (“Common
Stock”), of the Company, equal to the Settlement Rate, unless prior to or on the Purchase Contract Settlement Date there shall have occurred a Termination Event, an Early Settlement or a Merger Early Settlement with respect to such Purchase
Contract, all as provided in the Purchase Contract and Pledge Agreement and more fully described on the reverse hereof. The Purchase Price for the shares of Common Stock purchased pursuant to each Purchase Contract evidenced hereby, if not paid
earlier, shall be paid on the Purchase Contract Settlement Date by application of the proceeds from the Treasury Securities at maturity pledged to secure the obligations of the Holder under such Purchase Contract of the Treasury HiMEDS Units of
which such Purchase Contract is a part. 
 Each Purchase Contract evidenced hereby obligates the holder to agree, for tax purposes, to treat
(1) each Treasury HiMEDS Unit as an investment unit consisting of Treasury Securities and a Purchase Contract, (2) the Senior Notes as indebtedness for tax purposes, and (3) the Holder as the owner of the applicable interests in the Collateral
Account, including the Treasury Securities. 
 The Company shall pay, on each Payment Date, in respect of each Purchase Contract forming part
of a Treasury HiMEDS Unit evidenced hereby, an amount (the “Contract Adjustment Payments”) equal to 0.38% per year of the Stated Amount, computed on the basis of a 360-day year of twelve 30-day months. Such Contract
Adjustment Payments shall be payable to the Person in whose name this Treasury HiMEDS Units Certificate is registered at the close of business on the Record Date for such Payment Date. The Company may, at its option, defer such Contract
Adjustment Payments, as described in the Purchase Contract and Pledge Agreement. 
 Contract Adjustment Payments will be payable at the
office of the Purchase Contract Agent in New York City. If the book-entry system for the Corporate HiMEDS Units has been terminated, the Contract Adjustment Payments will be payable, at the option of the Company, by check mailed to the address of
the Person entitled thereto at such Person’s address as it appears on the Security Register, or by wire transfer to the account designated by such Person by a prior written notice to the Purchase Contract Agent. 
 Reference is hereby made to the further provisions set forth on the reverse hereof, which further provisions shall for all purposes have the same effect
as if set forth at this place. 
  

 B-2 

 Unless the certificate of authentication hereon has been executed by the Purchase Contract Agent by
manual signature, this Treasury HiMEDS Units Certificate shall not be entitled to any benefit under the Purchase Contract and Pledge Agreement or be valid or obligatory for any purpose. 
 IN WITNESS WHEREOF, the Company and the Holder specified above have caused this instrument to be duly executed. 
  

					
	BANKUNITED FINANCIAL CORPORATION
		
	By:	 	  

	Name:	 		 	
	Title:	 		 	
	
	HOLDER SPECIFIED ABOVE (as to obligations of such Holder under the Purchase Contracts)
		
	By:	 	THE BANK OF NEW YORK, not individually but solely as Attorney in-Fact of such Holder

					
			
		 	By:	 	  

		 	Name:	 	
		 	Title:	 	

  

 B-3 

 CERTIFICATE OF AUTHENTICATION OF 
 PURCHASE CONTRACT AGENT 
 This is one of the Treasury HiMEDS Units referred to in the
within-mentioned Purchase Contract and Pledge Agreement. 
  

									
		 		 		 	 THE BANK OF NEW YORK,
 as Purchase
Contract Agent

					
		 		 		 	By:	 	  

		 		 		 		 	Authorized Officer
	Dated:	 	  
	 		 		 	

  

 B-4 

 (REVERSE OF TREASURY HiMEDS UNIT CERTIFICATE) 
 Each Purchase Contract evidenced hereby is governed by a Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (as may be supplemented
from time to time, the “Purchase Contract and Pledge Agreement”), among the Company, The Bank of New York, as Purchase Contract Agent (including its successors hereunder, the “Purchase Contract Agent”) and The Bank
of New York, as Collateral Agent, Custodial Agent and Securities Intermediary, to which Purchase Contract and Pledge Agreement and supplemental agreements thereto reference is hereby made for a description of the respective rights, limitations of
rights, obligations, duties and immunities thereunder of the Purchase Contract Agent, the Company, and the Holders and of the terms upon which the Treasury HiMEDS Units Certificates are, and are to be, executed and delivered. 
 Each Purchase Contract evidenced hereby obligates the Holder of this Treasury HiMEDS Units Certificate to purchase, and the Company to sell, on the
Purchase Contract Settlement Date at a price equal to the Stated Amount (the “Purchase Price”) a number of newly issued shares of Common Stock equal to the Settlement Rate, unless an Early Settlement, a Merger Early Settlement or a
Termination Event with respect to the Units of which such Purchase Contract is a part shall have occurred. 
 In accordance with the terms of
the Purchase Contract and Pledge Agreement, the Holder of this Treasury HiMEDS Unit Certificate shall pay the Purchase Price for the shares of the Common Stock purchased pursuant to each Purchase Contract evidenced hereby either by effecting an
Early Settlement or, if applicable, a Merger Early Settlement of each such Purchase Contract or by applying the principal amount of the Pledged Treasury Securities underlying such Holder’s Treasury HiMEDS Unit equal to the Stated Amount of such
Purchase Contract to the purchase of the Common Stock. A Holder of Treasury HiMEDS Units who has not effected an Early Settlement or, if applicable, a Merger Early Settlement and who (1) on or prior to 4:00 p.m., New York City time, on the
second Business Day prior to the Remarketing Date, does not make an effective Early Settlement, or (2) on or prior to 4:00 p.m., New York City time, on the second Business Day prior to the Remarketing Date, does not make an effective Cash
Settlement, shall pay the Purchase Price, less the amount of any Deferred Contract Adjustment Payments payable to such Holder, for the shares of Common Stock to be issued under the related Purchase Contract from the proceeds of the Pledged Treasury
Securities. 
 The Company shall not be obligated to issue any shares of Common Stock in respect of a Purchase Contract or deliver any
certificates therefor to the Holder unless it shall have received payment of the aggregate Purchase Price, less any Deferred Contract Payments for the shares of Common Stock to be purchased thereunder in the manner set forth in the Purchase Contract
and Pledge Agreement. 
 Each Purchase Contract evidenced hereby and all obligations and rights of the Company and the Holder thereunder,
shall terminate if a Termination Event shall occur. Upon the occurrence of a Termination Event, the Company shall promptly but in no event later than two Business Days thereafter give written notice to the Purchase Contract Agent and the
Holders, at their addresses as they appear in the Security Register. Upon and after the occurrence of a Termination Event, the Collateral Agent shall release the Pledged Treasury Securities (as defined in the Purchase Contract and Pledge
Agreement) forming a part of each Treasury HiMEDS 

  

 B-5 

 
Unit. A Treasury HiMEDS Unit shall thereafter represent the right to receive the Proceeds of the Treasury Security forming a part of such Treasury
HiMEDS Unit, in accordance with the terms of the Purchase Contract and Pledge Agreement. 
 The Treasury HiMEDS Units Certificates are
issuable only in registered form and only in denominations of a single Treasury HiMEDS Unit and any integral multiple thereof. The transfer of any Treasury HiMEDS Units Certificate will be registered and Treasury HiMEDS Units Certificates may
be exchanged as provided in the Purchase Contract and Pledge Agreement. A Holder who elects to substitute a Senior Note, for Treasury Securities, thereby recreating Corporate HiMEDS Units, shall be responsible for any fees or expenses
associated therewith. 
 Subject to the conditions set forth in the Purchase Contract and Pledge Agreement, a Holder of Treasury HiMEDS Units
may recreate, at any time prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, Corporate HiMEDS Units by delivering to the Securities Intermediary Senior Notes with an aggregate principal
amount, equal to the aggregate principal amount at maturity of the Pledged Treasury Securities in exchange for the release of such Pledged Treasury Securities in accordance with the terms of the Purchase Contract and Pledge Agreement. From and
after such substitution, the Holder’s HiMEDS Units shall be referred to as a “Corporate HiMEDS Unit”. Any such creation of Corporate HiMEDS Units may be effected only in multiples of 20 Treasury HiMEDS Units.
 Subject to and upon compliance with the provisions of the Purchase Contract and Pledge Agreement, at the option of the Holder thereof, Purchase Contracts
underlying HiMEDS Units may be settled early at any time prior to 4:00 p.m., New York City time, on the Business Day immediately preceding the first Trading Day of the Observation Period (“Early Settlement”) as provided in the
Purchase Contract and Pledge Agreement. 
 Upon Early Settlement of Purchase Contracts by a Holder of the related HiMEDS Units, the Pledged
Treasury Securities underlying such HiMEDS Units shall be released from the Pledge as provided in the Purchase Contract and Pledge Agreement and the Holder shall be entitled to receive a number of shares of Common Stock on account of each Purchase
Contract forming part of a Treasury HiMEDS Unit as to which Early Settlement is effected equal to the Minimum Settlement Rate. 
 Upon the
occurrence of a Cash Merger, a Holder of Treasury HiMEDS Units may effect Merger Early Settlement of the Purchase Contract underlying such Treasury HiMEDS Units pursuant to the terms of Section 5.04(b)(ii) of the Purchase Contract and Pledge
Agreement. Upon Merger Early Settlement of Purchase Contracts by a Holder of the related Treasury HiMEDS Units, the Pledged Treasury Securities underlying such Treasury HiMEDS Units shall be released from the Pledge as provided in the Purchase
Contract and Pledge Agreement. 
 Upon registration of transfer of this Treasury HiMEDS Units Certificate, the transferee shall be bound
(without the necessity of any other action on the part of such transferee, except as may be required by the Purchase Contract Agent pursuant to the Purchase Contract and Pledge Agreement), under the terms of the Purchase Contract and Pledge
Agreement and the Purchase Contracts 

  

 B-6 

 
evidenced hereby and the transferor shall be released from the obligations under the Purchase Contracts evidenced by this Treasury HiMEDS Units
Certificate. The Company covenants and agrees, and the Holder, by its acceptance hereof, likewise covenants and agrees, to be bound by the provisions of this paragraph. 
 The Holder of this Treasury HiMEDS Units Certificate, by its acceptance hereof, authorizes the Purchase Contract Agent to enter into and perform the
related Purchase Contracts forming part of the Treasury HiMEDS Units evidenced hereby on its behalf as its attorney-in-fact, expressly withholds any consent to the assumption (i.e., affirmance) of the Purchase Contracts by the Company or its trustee
in the event that the Company becomes the subject of a case under the Bankruptcy Code, agrees to be bound by the terms and provisions thereof, covenants and agrees to perform its obligations under such Purchase Contracts, consents to the provisions
of the Purchase Contract and Pledge Agreement, authorizes the Purchase Contract Agent to enter into and perform the Purchase Contract and Pledge Agreement on its behalf as its attorney-in-fact, and consents to the Pledge of the Treasury Securities
underlying this Treasury HiMEDS Units Certificate pursuant to the Purchase Contract and Pledge Agreement. The Holder further covenants and agrees, that, to the extent and in the manner provided in the Purchase Contract and Pledge Agreement, but
subject to the terms thereof, payments in respect to the aggregate principal amount of the Pledged Treasury Securities on the Purchase Contract Settlement Date less any Deferred Contract Adjustment Payments shall be paid by the Collateral Agent to
the Company in satisfaction of such Holder’s obligations under such Purchase Contract and such Holder shall acquire no right, title or interest in such payments. 
 Subject to certain exceptions, the provisions of the Purchase Contract and Pledge Agreement may be amended with the consent of the Holders of a majority of the Purchase Contracts. 
 The Purchase Contracts shall for all purposes be governed by, and construed in accordance with, the laws of the State of New York. 
 Prior to due presentment of this Certificate for registration or transfer, the Company, the Purchase Contract Agent and its Affiliates and any agent of
the Company or the Purchase Contract Agent may treat the Person in whose name this Treasury HiMEDS Units Certificate is registered as the owner of the Treasury HiMEDS Units evidenced hereby for the purpose of receiving payments of Contract
Adjustment Payments (subject to any applicable record date), performance of the Purchase Contracts and for all other purposes whatsoever, whether or not any payments in respect thereof be overdue and notwithstanding any notice to the contrary, and
neither the Company, the Purchase Contract Agent nor any such agent shall be affected by notice to the contrary. 
 The Purchase Contracts
shall not, prior to the settlement thereof, entitle the Holder to any of the rights of a holder of shares of Common Stock. 
 A copy of the
Purchase Contract and Pledge Agreement is available for inspection at the offices of the Purchase Contract Agent. 
  

 B-7 

 ABBREVIATIONS 
 The following abbreviations, when used in the inscription on the face of this instrument, shall be construed as though they were written out in full according to applicable laws or regulations: 
  

									
	TEN COM:	  	as tenants in common	 		  	
					
	UNIF GIFT MIN ACT:	  	  	 	Custodian	 	  	  	
		  	(cust)	 		 	(minor)	  	
		  	Under Uniform Gifts to Minors Act of	  	
		  	  	  	
			
	TENANT:	  	as tenants by the entireties	  	
		
	JT TEN:	  	as joint tenants with right of survivorship and not as tenants in common

 Additional abbreviations may also be used though not in the above list. 
  

							
	 FOR VALUE RECEIVED, the undersigned hereby sell(s),
 assign(s) and transfer(s) unto
	 	  	 		 	
			
	  	 		 	
	(Please insert Social Security or Taxpayer I.D. or other Identifying Number of Assignee)	 		 	
			
	  	 		 	
	(Please Print or Type Name and Address Including Postal Zip Code of Assignee)	 		 	

 the within Treasury HiMEDS Units Certificates and all rights thereunder, hereby irrevocably constituting and
appointing attorney                             , to transfer said Treasury HiMEDS Units Certificates
on the books of BankUnited Financial Corporation, with full power of substitution in the premises. 
  

											
	Dated:	 	  
	 		 	Signature	 	  
	  	
				
		 		 		 	NOTICE: The signature to this assignment must correspond with the name as it appears upon the face of the within Treasury HiMEDS Units Certificates in every particular, without
alteration or enlargement or any change whatsoever.
				
		 	Signature Guarantee:	 	  
	  	

  

 B-8 

 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 Securities Exchange Act of 1934, as amended. 
  

 B-9 

 SETTLEMENT INSTRUCTIONS 
 The undersigned Holder directs that a certificate for shares of Common Stock deliverable upon settlement of the Purchase Contracts underlying the number of Treasury HiMEDS Units evidenced by this Treasury HiMEDS Units
Certificate be registered in the name of, and delivered, together with a check in payment for any fractional share, to the undersigned at the address indicated below unless a different name and address have been indicated below. If shares are
to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto. 
  

									
	Dated:	 	  
	 		 	Signature	 	
		 		 		 	Signature Guarantee:	 	  

		 		 		 	 (if assigned to another person)

 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 Securities Exchange Act of 1934, as amended. 
  

			
	If shares are to be registered in the name of and delivered to a Person other than the Holder, please (i) print such Person’s name and address and (ii) provide a guarantee of your
signature	  	  

  

	
	  

	Name
	
	  

	Address
	
	  

	
	  

	
	  

	Social Security or other Taxpayer Identification Number, if any

  

 B-10 

 REGISTERED HOLDER 
 Please
print name and address of Registered Holder: 
  

	
	  

	 Name

	
	  

	 Address

	
	  

	
	  

	
	  

			
		
	 DTC Participant #:
	 	  

  

 B-11 

 ELECTION TO SETTLE EARLY/ MERGER EARLY SETTLEMENT 
 The undersigned Holder of this Treasury HiMEDS Units Certificate hereby irrevocably exercises the option to effect [Early Settlement] [Merger Early
Settlement] in accordance with the terms of the Purchase Contract and Pledge Agreement with respect to the Purchase Contracts underlying the number of Treasury HiMEDS Units evidenced by this Treasury HiMEDS Units Certificate specified
below. The option to effect [Early Settlement] [Merger Early Settlement] may be exercised only with respect to Purchase Contracts underlying Treasury HiMEDS Units in multiples of 20 Treasury HiMEDS Units or an integral multiple
thereof. The undersigned Holder directs that a certificate for shares of Common Stock or other securities deliverable upon such [Early Settlement] [Merger Early Settlement] be registered in the name of, and delivered, together with a check in
payment for any fractional share and any Treasury HiMEDS Units Certificate representing any Treasury HiMEDS Units evidenced hereby as to which [Early Settlement] [Merger Early Settlement] of the related Purchase Contracts is not effected, to the
undersigned at the address indicated below unless a different name and address have been indicated below. Pledged Treasury Securities deliverable upon such [Early Settlement] [Merger Early Settlement] will be transferred in accordance with the
transfer instructions set forth below. If shares are to be registered in the name of a Person other than the undersigned, the undersigned will pay any transfer tax payable incident thereto. 
  

									
	Date:	 	  
	 		 	  

		 		 		 	Signature:
					
		 		 		 	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 Securities Exchange Act of 1934, as amended. 
  

			
	 DTC
	 	
	 Participant #:
	 	  

  

 B-12 

 Number of Treasury HiMEDS Units evidenced hereby as to which [Early Settlement] [Merger Early Settlement]
of the related Purchase Contracts is being elected: 
  

							
	If shares of Common Stock or Treasury Units Certificates are to be registered in the name of and delivered to and Treasury Securities, as the case may be, are to be transferred to a Person other
than the Holder, please print such Person’s name and address:	 		  	 REGISTERED HOLDER
  
  
 Please print name and address of Registered Holder:
  
  

			
	  
	 		  	  

	Name	 		  	Name
			
	  
	 		  	  

	Address	 		  	Address
			
	  
	 		  	  

			
	  
	 		  	  

			
	  
	 		  	  

				
	Social Security or other Taxpayer Identification Number, if any	 		  	DTC Participant #:	  	  

				
	  
	 		  		  	

 Transfer Instructions for Pledged Treasury Securities Transferable upon [Early Settlement] [Merger
Early Settlement] or a Termination Event: 
  

 B-13 

 [TO BE ATTACHED TO GLOBAL CERTIFICATES] 
 SCHEDULE OF INCREASES OR DECREASES IN GLOBAL CERTIFICATE 
 The following increases
or decreases in this Global Certificate have been made: 
  

									
	 Date
	  	 Amount of
 increase in
 Number of
 Treasury HiMEDS
 Units evidenced by
 the Global
 Certificate
	  	 Amount of
 decrease in
 Number of
 Treasury HiMEDS
 Unites evidenced
 by the Global
 Certificate
	  	 Number of
 Treasury HiMEDS
 Units evidenced by
 this Global
 Certificate
 following such
 decrease or
 increase
	  	 Signature of
 authorized
 signatory of
 Purchase Contract
 Agent

  

 B-14 

 EXHIBIT C 
 INSTRUCTION TO PURCHASE CONTRACT AGENT FROM HOLDER 
 (To Create Treasury HiMEDS Units or Corporate
HiMEDS Units) 
 The Bank of New York, 
 as Purchase Contract
Agent 
 101 Barclay Street—8W 
 New York, NY 10286

 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate
Trust Administration 
 Re:
[                    Corporate HiMEDS Units]
[                    Treasury HiMEDS Units] of BankUnited Financial Corporation, a Florida corporation (the “Company”). 

The undersigned Holder hereby notifies you that it has delivered to             ,
as Securities Intermediary, for credit to the Collateral Account, $             aggregate principal amount of [Senior Notes] [Treasury Securities] in exchange for the [Pledged Senior
Notes] [Pledged Treasury Securities] held in the Collateral Account, in accordance with the Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (the “Agreement”; unless otherwise defined herein, terms defined in
the Agreement are used herein as defined therein), between you, the Company, the Collateral Agent, the Custodial Agent and the Securities Intermediary. The undersigned Holder has paid all applicable fees and expenses relating to such
exchange. The undersigned Holder hereby instructs you to instruct the Collateral Agent to release to you on behalf of the undersigned Holder the [Pledged Senior Notes] [Pledged Treasury Securities] related to such [Corporate HiMEDS Units]
[Treasury HiMEDS Units]. 
  

									
	Date:	 	  
	 		 	  

		 		 		 	Signature:
					
		 		 		 	Signature Guarantee:	 	  

  

			
	 DTC Participant No.
	 	  

  

 C-1 

 Please print name and address of Registered Holder: 
  

					
	  
	 		 	  

	Name	 		 	Social Security or other Taxpayer Identification Number, if any
			
	Address	 		 	
	  
	 		 	
			
	  
	 		 	
			
	  
	 		 	
			
	  
	 		 	

  

 C-2 

 EXHIBIT D 
 NOTICE FROM PURCHASE CONTRACT AGENT 
 TO HOLDERS UPON TERMINATION EVENT 
 (Transfer of Collateral upon Occurrence of a Termination Event) 
  

			
	[HOLDER]	 	
	  
	 	
	  
	 	

 Attention: 
 Telecopy:

 Re: [                    Corporate
HiMEDS Units] [                    Treasury HiMEDS Units] of BankUnited Financial Corporation, a Florida corporation (the “Company”)

 Please refer to the Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (the “Purchase Contract and Pledge
Agreement”; unless otherwise defined herein, terms defined in the Purchase Contract and Pledge Agreement are used herein as defined therein), between the Company and the undersigned, as Purchase Contract Agent and as attorney-in-fact for
the holders of Corporate HiMEDS Units and Treasury HiMEDS Units from time to time. 
 We hereby notify you that a Termination Event has
occurred and that [the Senior Notes] [the Treasury Securities] compromising a portion of your ownership interest in                     
[Corporate HiMEDS Units] [Treasury HiMEDS Units] have been released and are being held by us for your account pending receipt of transfer instructions with respect to such [Pledged Senior Notes] [Pledged Treasury Securities] (the “Released
Securities”). 
 Pursuant to Section 3.15 of the Purchase Contract and Pledge Agreement, we hereby request written transfer
instructions with respect to the Released Securities. Upon receipt of your instructions and upon transfer to us of your [Corporate HiMEDS Units][Treasury HiMEDS Units] effected through book-entry or by delivery to us of your [Corporate HiMEDS Units
Certificate][Treasury HiMEDS Units Certificate], we shall transfer the Released Securities by book-entry transfer or other appropriate procedures, in accordance with your instructions. In the event you fail to effect such transfer or delivery,
the Released Securities and any distributions thereon, shall be held in our name, or a nominee in trust for your benefit, until such time as such [Corporate HiMEDS Units][Treasury HiMEDS Units] are transferred or your [Corporate HiMEDS Units
Certificate] [Treasury HiMEDS Units Certificate] is surrendered or satisfactory evidence is provided that such [Corporate HiMEDS Units Certificate][Treasury HiMEDS Units Certificate] has been destroyed, lost or stolen, together with any
indemnification that we or the Company may require. 
  

 D-1 

							
	Date:	 		 	By:	 	 THE BANK OF NEW YORK,
 as the Purchase Contract
Agent

				
		 		 	Name:	 	  

		 		 	Title:	 	Authorized Signatory

  

 D-2 

 EXHIBIT E 
 NOTICE TO SETTLE BY SEPARATE CASH 
 The Bank of New York, 
 as Purchase Contract Agent 
 101 Barclay Street—8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust Administration 
 Re: Corporate HiMEDS Units of
BankUnited Financial Corporation, a Florida corporation (the “Company”) 
 The undersigned Holder hereby irrevocably
notifies you in accordance with Section 5.02 of the Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (the “Purchase Contract and Pledge Agreement”; unless otherwise defined herein, terms defined in
the Purchase Contract and Pledge Agreement are used herein as defined therein), between the Company and you, as Purchase Contract Agent and as Attorney-in-Fact for the Holders of the Purchase Contracts, that such Holder has elected to pay to the
Securities Intermediary for deposit in the Collateral Account, prior to or on 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date (in lawful money of the United States by certified or cashiers’
check or wire transfer, in immediately available funds), $             as the Purchase Price for the shares of Common Stock issuable to such Holder by the Company with respect to
                     Purchase Contracts on the Purchase Contract Settlement Date. The undersigned Holder hereby instructs you to notify
promptly the Collateral Agent of the undersigned Holders’ election to make such Cash Settlement with respect to the Purchase Contracts related to such Holder’s Corporate HiMEDS Units. 
  

									
	Date:	 	  
	 		 	  

		 		 		 	Signature:
					
		 		 		 	Signature Guarantee:	 	  

  

			
	Please print name and address of Registered Holder:
	
	  

	
	  

			
		
	 DTC Participant No.
	 	  

  

 E-1 

 EXHIBIT F 
 RESERVED 
  

 F-1 

 EXHIBIT G 
 INSTRUCTION 
 FROM PURCHASE CONTRACT AGENT 
 TO COLLATERAL AGENT 
 (Creation of
Treasury HiMEDS Units) 
 The Bank of New York, 
 as Purchase
Contract Agent 
 101 Barclay Street—8W 
 New York, NY 10286

 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate
Trust Administration 
 Re: Corporate HiMEDS Units of BankUnited Financial Corporation (the “Company”) 
 The securities account of The Bank of New York, as Collateral Agent, maintained by the Securities Intermediary and designated
“[                    ], as Collateral Agent of BankUnited Financial Corporation, as pledgee of The Bank of New York, as the Purchase Contract
Agent on behalf of and as attorney-in-fact for the Holders” (the “Collateral Account”) 
 Please refer to the Purchase
Contract and Pledge Agreement, dated as of April •, 2007 (the “Agreement”), among the Company, you, as Collateral Agent, as Securities Intermediary and as Custodial Agent and the undersigned, as Purchase Contract Agent and as
attorney-in-fact for the holders of Corporate HiMEDS Units from time to time. Capitalized terms used herein but not defined shall have the meaning set forth in the Agreement. 
 We hereby notify you in accordance with Section 3.13 of the Agreement that the holder of securities named below (the “Holder”) has
elected to substitute $             Value of Treasury Securities or security entitlements with respect thereto in exchange for an equal Value of [Pledged Senior Notes] relating to
                     Corporate HiMEDS Units and has delivered to the undersigned a notice stating that the Holder has Transferred such
Treasury Securities or security entitlements with respect thereto to the Securities Intermediary, for credit to the Collateral Account. 
  

 G-1 

 We hereby request that you instruct the Securities Intermediary, upon confirmation that such Treasury
Securities or security entitlements thereto have been credited to the Collateral Account, to release to the undersigned an equal Value of [Pledged Senior Notes] in accordance with Section 3.13 of the Agreement. 
 Date: 
  

			
	THE BANK OF NEW YORK, as Purchase Contract Agent and as attorney-in-fact of the Holders from time to time of the HiMEDS Units
		
	By:	 	  

	Name:	 	
	Title:	 	Authorized Signatory

 Please print name and address of Holder electing to substitute Treasury Securities or
security entitlements with respect thereto for the [Pledged Senior Notes]: 
  

					
	  
	 		 	  

	Name:	 		 	Social Security or other Taxpayer Identification Number, if any
			
	  
	 		 	
	Address	 		 	
			
	  
	 		 	
			
	  
	 		 	

  

 G-2 

 EXHIBIT H 
 INSTRUCTION 
 FROM COLLATERAL AGENT 
 TO SECURITIES INTERMEDIARY 
 (Creation of Treasury HiMEDS Units)

 The Bank of New York, 
 as Securities Intermediary

 101 Barclay Street—8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust
Administration 
 Re: Corporate HiMEDS Units of BankUnited Financial Corporation (the “Company”) 
 The securities account of The Bank of New York, as Collateral Agent, maintained by the Securities Intermediary and designated
“[                    ], as Collateral Agent of BankUnited Financial Corporation, as pledgee of The Bank of New York, as the Purchase Contract
Agent on behalf of and as attorney-in-fact for the Holders” (the “Collateral Account”) 
 Please refer to the Purchase
Contract and Pledge Agreement, dated as of April 25, 2007 (the “Agreement”), among the Company, you, as Collateral Agent, as Securities Intermediary and as Custodial Agent and the undersigned, as Purchase Contract Agent and as
attorney-in-fact for the holders of Corporate HiMEDS Units from time to time. Capitalized terms used herein but not defined shall have the meaning set forth in the Purchase Contract and Pledge Agreement. 
 When you have confirmed that $             Value of Treasury Securities or security
entitlements thereto has been credited to the Collateral Account by or for the benefit of                     , as Holder of Corporate HiMEDS
Units (the “Holder”), you are hereby instructed to release from the Collateral Account an equal Value of Pledged Senior Notes or security entitlements with respect thereto relating to
                     Corporate HiMEDS Units of the Holder by Transfer to the Purchase Contract Agent. 
 Dated: 
  

			
	 THE BANK OF NEW YORK,
 as Collateral
Agent

		
	By:	 	  

	Name:	 	
	Title:	 	Authorized Signatory

  

 H-1 

 EXHIBIT I 
 INSTRUCTION 
 FROM PURCHASE CONTRACT AGENT 
 TO COLLATERAL AGENT 
 (Recreation of
Corporate HiMEDS Units ) 
 The Bank of New York, 
 as
Collateral Agent 
 101 Barclay Street - 8W 
 New York, NY 10286

 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate
Trust Administration 
  

	 	Re:	Treasury HiMEDS Units of BankUnited Financial Corporation (the “Company”) 

 Please refer to the Purchase Contract and Pledge Agreement dated as of April25, 2007 (the “Agreement”), among the Company, you, as
Collateral Agent, as Securities Intermediary, as Custodial Agent and the undersigned, as Purchase Contract Agent and as attorney-in-fact for the holders of Treasury HiMEDS Units from time to time. Capitalized terms used herein but not defined
shall have the meaning set forth in the Agreement. 
 We hereby notify you in accordance with Section 3.13 of the Agreement that the
holder of securities named below (the “Holder”) has elected to substitute $             Value of Senior Notes or security entitlements with respect thereto in
exchange for $             Value of Pledged Treasury Securities and has delivered to the undersigned a notice stating that the holder has Transferred such Senior Notes or security
entitlements with respect thereto to the Securities Intermediary, for credit to the Collateral Account. 
 We hereby request that you
instruct the Securities Intermediary, upon confirmation that such Senior Notes or security entitlements with respect thereto have been credited to the Collateral Account, to release to the undersigned
$             Value of Treasury Securities or security entitlements with respect thereto related to
                     Treasury HiMEDS Units of such Holder in accordance with Section 3.13 of the Agreement. 
  

									
		 		  		 	THE BANK OF NEW YORK, as
Purchase Contract Agent
					
	 Dated:
	 	  
	  		 	By:	 	  

		 		  		 	Name:	 	
		 		  		 	Title:	 	Authorized Signatory

  

 I-1 

 Please print name and address of Holder electing to substitute Senior Notes or security entitlements with respect thereto
for Pledged Treasury Securities: 
  

							
	  
	 		 	  

	 Name:
	 		 	Social Security or other Taxpayer
Identification Number, if any
			
	  
	 		 	
	 Address
	 		 	
			
	  
	 		 	
	  
	 		 	
				
	 DTC Participant No.
	 	  
	 		 	

  

 I-2 

 EXHIBIT J 
 INSTRUCTION 
 FROM COLLATERAL AGENT 
 TO SECURITIES INTERMEDIARY 
 (Recreation of Corporate HiMEDS Units)

 The Bank of New York, 
 as Securities Intermediary

 101 Barclay Street - 8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust
Administration 
  

	 	Re:	Treasury HiMEDS Units of BankUnited Financial Corporation (the “Company”) 

 The securities account of The Bank of New York, as Collateral Agent, maintained by the Securities Intermediary and designated
“[                    ], as Collateral Agent of BankUnited Financial Corporation, as pledgee of The Bank of New York, as the Purchase
Contract Agent on behalf of and as attorney-in-fact for the Holders” (the “Collateral Account”) 
 Please refer to the
Purchase Contract and Pledge Agreement dated as of April 25, 2007 (the “Agreement”), among the Company, you, as Securities Intermediary, Custodial Agent and Collateral Agent and The Bank of New York, as Purchase Contract Agent
and as attorney-in-fact for the holders of Corporate HiMEDS Units from time to time, and the undersigned, as Collateral Agent. Capitalized terms used herein but no defined shall have the meaning set forth in the Agreement. 
 When you have confirmed that $             Value of Senior Notes or security
entitlements with respect thereto has been credited to the Collateral Account by or for the benefit of                     , as Holder of
Treasury HiMEDS Units (the “Holder”), you are hereby instructed to release from the Collateral Account $             Value of Treasury Securities or security
entitlements thereto by Transfer to the Purchase Contract Agent. 
  

									
		 		  		 	THE BANK OF NEW YORK, as
Collateral Agent
					
	 Dated:
	 	  
	  		 	By:	 	  

		 		  		 	Name:	 	
		 		  		 	Title:	 	Authorized Signatory

  

 J-1 

 EXHIBIT K 
 NOTICE OF SENIOR NOTES TO BE REMARKETED 
 AGENT TO PURCHASE CONTRACT AGENT 
 The Bank of New York, 
 as Purchase Contract Agent 
 101 Barclay Street - 8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust
Administration 
 [Remarketing Agent] 
  

	 	Re:	Corporate HiMEDS Units of BankUnited Financial Corporation (the “Company”) 

 Please refer to the Purchase Contract and Pledge Agreement dated as of April 25, 2007 (the “Agreement”), by and among you, the
Company, and The Bank of New York, as Collateral Agent, Custodial Agent and Securities Intermediary. Unless otherwise defined herein, terms defined in the Purchase Contract and Pledge Agreement are used herein as defined therein. 
 In accordance with Section 5.02(a)(iii) of the Agreement, we hereby notify you that as of 4:00 p.m., New York City time, on the second Business Day
immediately preceding the Remarketing Date, we have received (i) $             in immediately available funds paid in an aggregate amount equal to the Purchase Price due to the
Company on the Purchase Contract Settlement Date with respect to                      Corporate HiMEDS Units and (ii) based on the funds
received set forth in clause (i) above, an aggregate principal amount of $             of Pledged Senior Notes are to be tendered for purchase in the Remarketing.] [In
accordance with Section 5.02(b) of the Agreement, we hereby notify you that as of 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, we have received an aggregate principal amount of
$             of Separate Senior Notes tendered for resale in the Remarketing.] 
  

									
		 		  		 	THE BANK OF NEW YORK, as
[Collateral Agent][Custodial Agent]
					
	 Dated:
	 	  
	  		 	By:	 	  

		 		  		 	Name:	 	
		 		  		 	Title:	 	Authorized Signatory

  

 K-1 

 EXHIBIT L 
 INSTRUCTION TO CUSTODIAL AGENT REGARDING REMARKETING 
 The Bank of New York, 
 as Custodial Agent 
 101 Barclay Street - 8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust Administration 
  

	 	Re:	Senior Notes Due 2012 of BankUnited Financial Corporation (the “Company”) 

 The undersigned hereby notifies you in accordance with of the Purchase Contract and Pledge Agreement, dated as of April 25, 2007 (the
“Agreement”), among the Company, you, as Collateral Agent, Custodial Agent and Securities Intermediary and The Bank of New York, as the Purchase Contract Agent and as attorney-in-fact for the holders of Corporate HiMEDS Units from
time to time, that the undersigned elects to deliver $             aggregate principal amount of Separate Senior Notes for delivery to the Remarketing Agent prior to 4:00 p.m., New
York City time, on the second Business Day immediately preceding the Remarketing Date for Remarketing pursuant to Section 5.02(b) of the Agreement. The undersigned will, upon request of the Remarketing Agent, execute and deliver any
additional documents deemed by the Remarketing Agent or by the Company to be necessary or desirable to complete the sale, assignment and transfer of the Separate Senior Notes tendered hereby. Capitalized terms used herein but not defined shall
have the meaning set forth in the Agreement. 
 The undersigned hereby instructs you, upon receipt of the Proceeds of such remarketing from
the Remarketing Agent, to deliver such Proceeds to the undersigned in accordance with the instructions indicated herein under “A. Payment Instructions.” The undersigned hereby instructs you, in the event of a Last Failed
Remarketing, upon receipt of the Separate Senior Notes tendered herewith from the Remarketing Agent, to deliver such Separate Senior Notes to the person(s) and the address(es) indicated herein under “B. Delivery Instructions.”

 With this notice, the undersigned hereby (i) represents and warrants that the undersigned has full power and authority to tender,
sell, assign and transfer the Separate Senior Notes tendered hereby and that the undersigned is the record owner of any Senior Notes tendered herewith in physical form or a participant in The Depositary Trust Company (“DTC”) and the
beneficial owner of any Senior Notes tendered herewith by book-entry transfer to your account at DTC, (ii) agrees to be bound by the terms and conditions of Section 5.02(a)(ii) of the Agreement and (iii) acknowledges and agrees that
after 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, such election shall become an irrevocable election to have such Separate Senior Notes remarketed in the Remarketing, and that the Separate
Senior Notes tendered herewith will only be returned in the event of a Last Failed Remarketing.
  

			
	 Date:
	 	  

  

 L-1 

							
		 		 	By:	 	  

		 		 	Name:	 	  

		 		 	Title:	 	  

		 		 	Signature Guarantee:	 	  

	  
	 		 		 	
	 Name
	 		 		 	  

		 		 		 	Social Security or other Taxpayer Identification Number, if any
	  
	 		 		 	
	 Address
	 		 		 	
				
	  
	 		 		 	
	 DTC Participant No.
	 		 		 	

  

	A.	PAYMENT INSTRUCTIONS 

 Proceeds of the remarketing should be paid by check
in the name of the person(s) set forth below and mailed to the address set forth below. 
  

			
	Name(s)	 	  

	 (Please Print)

		
	 Address
	 	  

	 (Please Print)

	
	  

	 (Zip Code)

	
	  

	 (Tax Identification or Social Security Number)

  

 L-2 

	B.	DELIVERY INSTRUCTIONS 

 In the event of a Last Failed Remarketing, Senior
Notes which are in physical form should be delivered to the person(s) set forth below and mailed to the address set forth below. 
  

			
	 Name(s)
	 	  

	 (Please Print)

		
	 Address
	 	  

	 (Please Print)

	
	  

	 (Zip Code)

	
	  

	 (Tax Identification or Social Security Number)

 In the event of a Last Failed Remarketing, Senior Notes which are in book-entry form should be credited to the
account at The Depository Trust Company set forth below. 
  

			
	  
	 	
	 DTC Account Number
	 	
		
	 Name of Account Party:
	 	  

  

 L-3 

 EXHIBIT M 
 INSTRUCTION TO CUSTODIAL AGENT REGARDING 
 WITHDRAWAL FROM REMARKETING 
 The Bank of New York, 
 as Custodial Agent 
 101 Barclay Street - 8W 
 New York, NY 10286 
 Telecopier No.: (212) 815-3272/5707 
 Attention: Corporate Trust
Administration 
  

	 	Re:	Senior Notes Due 2012 of BankUnited Financial Corporation (the “Company”) 

 The undersigned hereby notifies you in accordance with Section 5.02(a)(ii) of the Purchase Contract and Pledge Agreement, dated as of April 25,
2007 (the “Agreement”), among the Company and you, as Collateral Agent, Custodial Agent and Securities Intermediary, and The Bank of New York, as Purchase Contract Agent and as attorney-in-fact for the holders of Corporate HiMEDS
Units from time to time, that the undersigned elects to withdraw the $             aggregate principal amount of Separate Senior Notes delivered to the Collateral Agent for
Remarketing pursuant to Section 5.02(a)(ii) of the Agreement. The undersigned hereby instructs you to return such Separate Senior Notes to the undersigned in accordance with the undersigned’s instructions. With this notice, the
Undersigned hereby agrees to be bound by the terms and conditions of Section 5.02(a)(ii) of the Agreement. Capitalized terms used herein but not defined shall have the meaning set forth in the Agreement. 
  

									
	 Date:
	 	  
	  		 		 	
		  		 	By:	 	  

		  		 	Name:	 	  

		  		 	Title:	 	  

		  		 	Signature Guarantee:	 	  

	  
	  		 		 	
	 Name
	  		 	  

		  		 	 Social Security or other Taxpayer
 Identification Number, if any

	  
	  		 		 	
	 Address
	  		 		 	

											
						
	 DTC Participant No.
	 	  
	  		  		 		 	

  

 M-1Supplemental Indenture No. 1 bet. BankUnited and The Bank of New York

 Exhibit 4.2 
 Execution Copy 
 FIRST SUPPLEMENTAL INDENTURE 
 between 
 BANKUNITED FINANCIAL
CORPORATION 
 and 
 THE BANK OF NEW YORK 
 Dated as of April 25, 2007 

 TABLE OF CONTENTS 
  

					
	 	 	 	  	Page
	 ARTICLE 1  Definitions
	  	1
		
	            Section 1.01.  Relation to Base Indenture.	  	1
	            Section 1.02.  Definition of Terms	  	1
		
	 ARTICLE 2  General Terms and Conditions of the Senior Notes
	  	4
		
	            Section 2.01.  Designation and Principal Amount	  	4
	            Section 2.02.  Maturity	  	4
	            Section 2.03.  Form, Payment and Appointment	  	4
	            Section 2.04.  Global Senior Notes	  	5
	            Section 2.05.  Interest	  	5
	            Section 2.06.  No Defeasance	  	6
	            Section 2.07.  No Sinking Fund	  	6
	            Section 2.08.  Voting Rights	  	6
		
	 ARTICLE 3  Form of Senior Note
	  	6
		
	            Section 3.01.  Form of Senior Note	  	6
		
	 ARTICLE 4  Original Issue of Senior Notes
	  	6
		
	            Section 4.01.  Original Issue of Senior Notes	  	6
		
	 ARTICLE 5  Remarketing
	  	6
		
	            Section 5.01.  Remarketing Procedures	  	6
	            Section 5.02.  Optional Participation in Remarketing	  	11
	            Section 5.03.  Put Right	  	11
	            Section 5.04.  Additional Event of Default	  	12
		
	 ARTICLE 6  Tax Treatment
	  	12
		
	            Section 6.01.  Tax Treatment	  	12
		
	 ARTICLE 7  Miscellaneous
	  	12
		
	            Section 7.01.  Ratification of Indenture	  	12
	            Section 7.02.  Responsibility for Recitals, Etc.	  	12
	            Section 7.03.  Separability	  	12
	            Section 7.04.  Successors and Assigns	  	12
	            Section 7.05.  Governing Law	  	12
	            Section 7.06.  Counterparts	  	13

  

 i 

 THIS FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of
April 25, 2007, is between BANKUNITED FINANCIAL CORPORATION, a Florida corporation (the “Company”), and THE BANK OF NEW YORK, a New York banking corporation, as Trustee (the “Trustee”). 
 RECITALS 
 WHEREAS, the Company has
heretofore executed and delivered to the Trustee an Indenture, dated as of April 18, 2007 (the “Base Indenture” and, as further supplemented by this Supplemental Indenture, the “Indenture”), providing for the
issuance from time to time of series of the Company’s Securities (as defined in the Base Indenture); 
 WHEREAS, Section 901(6) of
the Base Indenture provides for the Company and the Trustee to enter into an indenture supplemental to the Base Indenture to establish the form or terms of Securities of any series as permitted by Sections 201 or 301 of the Base Indenture;

 WHEREAS, pursuant to Section 301 of the Base Indenture, the Company wishes to provide for the issuance of a new series of Securities
to be known as its 6.37% Senior Notes due May 17, 2012 (the “Senior Notes”), the form and terms of such Senior Notes and the terms, provisions and conditions thereof to be set forth as provided in this Supplemental Indenture;

 WHEREAS, the Company has requested that the Trustee execute and deliver this Supplemental Indenture and all requirements necessary to make
this Supplemental Indenture a valid, binding and enforceable instrument in accordance with its terms, and to make the Senior Notes, when executed by the Company and authenticated and delivered by the Trustee, the valid, binding and enforceable
obligations of the Company, have been done and performed, and the execution and delivery of this Supplemental Indenture has been duly authorized in all respects. 
 NOW, THEREFORE, in consideration of the covenants and agreements set forth herein and for other good and valuable consideration, the receipt and sufficiency of which are hereby acknowledged, the parties hereto hereby
agree as follows: 
 ARTICLE 1 
 DEFINITIONS 
 Section 1.01. Relation to Base Indenture. This Supplemental Indenture constitutes an integral part
of the Base Indenture. 
 Section 1.02. Definition of Terms. For all purposes of this Supplemental Indenture: 
 (a) Capitalized terms used herein without definition shall have the meanings specified in the Base Indenture, or, if not defined in the
Base Indenture, in the Purchase Contract and Pledge Agreement or the Remarketing Agreement; 
 (b) a term defined anywhere in
this Supplemental Indenture has the same meaning throughout; 
 (c) the singular includes the plural and vice versa;

 (d) headings are for convenience of reference only and do not affect interpretation;

 (e) the following terms have the meanings given to them in this Article 1: 
 “Applicable Ownership Interest” means the $50 principal amount of the Senior Notes that is a component of each Corporate HiMEDS Unit.

 “Business Day” means any day other than a Saturday or Sunday or any other day on which banking institutions and trust
companies in The City of New York, New York are permitted or required by applicable law to remain closed or a day on which the Indenture Trustee or the Collateral Agent is closed for business. 
 “Collateral Agent” shall have the meaning specified in the Purchase Contract and Pledge Agreement. 
 “Contract Settlement Price” shall have the meaning set forth in Section 7.01(c)(iv)(B). 
 “Corporate HiMEDS Unit” shall have the meaning specified in the Purchase Contract and Pledge Agreement. 
 “Depositary” means a clearing agency registered under Section 17A of the Securities Exchange Act of 1934, as amended, that is
designated to act as Depositary for the Corporate HiMEDS Units pursuant to the Purchase Contract and Pledge Agreement. 
 “Depositary
Participant” means a broker, dealer, bank, other financial institution or other Person for whom from time to time the Depositary effects book entry transfers and pledges of securities deposited with the Depositary. 
 “Global Senior Notes” shall have the meaning set forth in Section 2.04. 
 “Interest Payment Dates” shall have the meaning set forth in Section 2.05(b). 
 “Interest Rate” shall have the meaning set forth in Section 2.05(a). 
 “Last Failed Remarketing” shall have the meaning specified in the Purchase Contract and Pledge Agreement. 
 “Minimum Price” shall have the meaning set forth in Section 7.01(h). 
 “Purchase Contract and Pledge Agreement” means the Purchase Contract and Pledge Agreement, dated as of April 25, 2007, between the
Company and The Bank of New York, as Purchase Contract Agent, Collateral Agent, Custodial Agent and Securities Intermediary, as amended from time to time. 
 “Purchase Contracts” and “Purchase Contract” shall have their respective meanings specified in the Purchase Contract and Pledge Agreement. 
  

 2 

 “Purchase Contract Settlement Date” means May 17, 2010. 
 “Put Price” shall have the meaning set forth in Section 5.03. 
 “Put Right” shall have the meaning set forth in Section 5.03. 
 “Quarterly Interest Payment Date” shall have the meaning set forth in Section 2.05(b). 
 “Record Date” means, with respect to any Interest Payment Date for the Senior Notes, the first day of the calendar month in which such
Interest Payment Date falls; provided that the Company may, at its option, select any other day as the Record Date for any Interest Payment Date so long as (i) such Record Date selected is more than one Business Day but less than sixty
Business Days prior to such Interest Payment Date and (ii) at least ten Business Days prior to the old Record Date and the new Record Date for such Interest Payment Date, the Company notifies the Trustee in writing of the new Record Date and
instructs the Trustee to notify the Holders of such Record Date. 
 “Remarketed Senior Notes” shall have the meaning set
forth in Section 5.01(i). 
 “Remarketing Agent” shall have the meaning set forth in Section 5.01(a). 

“Remarketing Agreement” means the Remarketing Agreement to be entered into among the Company, the Remarketing Agent, and The Bank of
New York, as Purchase Contract Agent, as amended from time to time. 
 “Remarketing Announcement” shall have the meaning set
forth in Section 5.01(c). 
 “Remarketing Announcement Date” means the date not later than 10:00 a.m., New York City
time, on the twenty-third Business Day immediately preceding the Purchase Contract Settlement Date when the Remarketing Announcement is issued. 
 “Reset Date” means May 17, 2010. 
 “Reset Rate” means the interest rate per annum,
calculated in accordance with Section 5.01 below, on the Senior Notes to be in effect on and after the Reset Date. 
 “Separate
Senior Notes” means Senior Notes that are no longer a component of Corporate HiMEDS Units. 
 “Stated Maturity”
shall have the meaning specified in Section 2.02. 
 “Subsequent Interest Payment Date” means, following the Reset
Date, each semi-annual interest payment date established by the Remarketing Agent in connection with the successful remarketing of the Senior Notes. 
 “Treasury HiMEDS Unit” shall have the meaning specified in the Purchase Contract and Pledge Agreement. 
  

 3 

 The terms “Company,” “Trustee,” “Indenture,”
“Base Indenture” and “Senior Notes” shall have the respective meanings set forth in the recitals to this Supplemental Indenture and the paragraph preceding such recitals. 
 ARTICLE 2 
 GENERAL TERMS AND CONDITIONS OF THE
SENIOR NOTES 
 Section 2.01. Designation and Principal Amount. There is hereby authorized a series of Securities designated
as 6.37% Senior Notes due May 17, 2012 initially limited in aggregate principal amount to $160,000,000 (up to $184,000,000 if the Underwriters exercise their over-allotment option in full). The Senior Notes may be issued from time to time
upon written order of the Company for the authentication and delivery of Senior Notes pursuant to Section 303 of the Base Indenture. 
 Section 2.02. Maturity. The Senior Notes will mature and the principal amount thereof shall be due and payable together with all accrued and unpaid interest thereon, on the Stated Maturity. The “Stated
Maturity” shall mean May 17, 2012. 
 Section 2.03. Form, Payment and Appointment. Except as provided in
Section 2.04, the Senior Notes shall be issued in fully registered, certificated form, bearing identical terms. Principal of and interest on the Senior Notes will be payable, the transfer of such Senior Notes will be registrable, and such
Senior Notes will be exchangeable for Senior Notes of a like aggregate principal amount in denominations of $1,000 (unless Senior Notes have previously been issued in denominations of $50 and integral multiples thereof, in which case Senior Notes
will be exchangeable for a like aggregate principal amount in denominations of $50 and integral multiples of $50) and integral multiples of $1,000 bearing identical terms and provisions, at the office or agency of the Company maintained for such
purpose in the Borough of Manhattan, The City of New York, which shall initially be the Corporate Trust Office of the Trustee; provided, however, that payment of interest may be made at the option of the Company by check mailed to the
Holder at such address as shall appear in the Security Register or by wire transfer to an account appropriately designated by the Holder entitled to payment. 
 No service charge shall be made for any registration of transfer or exchange of the Senior Notes, but the Company may require payment from the Holder of a sum sufficient to cover any tax or other governmental charge
that may be imposed in connection therewith. 
 The Security Registrar and Paying Agent for the Senior Notes shall initially be the Trustee.

 The Senior Notes shall be issuable in denominations of $1,000 and integral multiples of $1,000 in excess thereof; provided,
however, that upon the release by the Collateral Agent of the Pledged Senior Notes (other than any release of Pledged Senior Notes in connection with (i) the creation of Treasury HiMEDS Units by Collateral Substitution, (ii) a
successful remarketing, (iii) Merger Early Settlement or (iv) Early Settlement in accordance with Sections 3.13, 5.02, 5.04(b) and 5.07 of the Purchase Contract and Pledge Agreement, respectively), the Senior Notes shall be issuable in
denominations of $50 and integral multiples of $50. Each Applicable Ownership Interest in a Senior Note held as a component of a Corporate HiMEDS Unit represents an undivided ownership interest of 1/20, or 5%, of $1,000 principal amount of
Senior Notes. 
  

 4 

 Section 2.04. Global Senior Notes. Senior Notes that are no longer a component of
the Corporate HiMEDS Units and released from the Collateral Account (as defined in the Purchase Contract and Pledge Agreement) will be issued in permanent global form (a “Global Senior Note”), and if issued as one or more Global
Senior Notes, the Depositary shall be The Depository Trust Company or such other depositary as any officer of the Company may from time to time designate. Upon the creation of Treasury HiMEDS Units or the recreation of Corporate HiMEDS Units,
an appropriate annotation shall be made on the Schedule of Increases and Decreases on the Global Senior Notes held by the Depositary. Unless and until such Global Senior Note is exchanged for Senior Notes in certificated form, Global Senior
Notes may be transferred, in whole but not in part, and any payments on the Senior Notes shall be made, only to the Depositary or a nominee of the Depositary, or to a successor Depositary selected or approved by the Company or to a nominee of such
successor Depositary. 
 Section 2.05. Interest. (a) The Senior Notes will bear interest initially at the rate of
6.37% per year (the “Interest Rate”) from the date of original issuance to, but excluding, the Reset Date. If the Senior Notes are not successfully remarketed, the Interest Rate will remain 6.37% per year to, to excluding,
the Stated Maturity. In the event of a successful Remarketing of the Senior Notes, the Interest Rate will be reset by the Remarketing Agent at the appropriate Reset Rate with effect from the Reset Date, as set forth under
Section 5.02. If the Interest Rate is so reset, the Senior Notes will bear interest at the Reset Rate from the related Reset Date until the principal thereof and interest thereon is paid or duly made available for payment and shall bear
interest, to the extent permitted by law, compounded semi-annually, on any overdue principal and payment of interest at the Interest Rate through and including the day immediately preceding the Reset Date and at the Reset Rate thereafter. Interest
on the Senior Notes shall be payable initially quarterly in arrears on February 17, May 17, August 17 and November 17 of each year (each, a “Quarterly Interest Payment Date”), commencing August 17,
2007, to the Person in whose name such Senior Note, or any predecessor Senior Note, is registered at the close of business on the Record Date for such Interest Payment Date. Following a successful Remarketing of the Senior Notes, interest on
the Senior Notes shall be payable semi-annually in arrears on the Subsequent Interest Payment Dates (together with Quarterly Interest Payment Dates, the “Interest Payment Dates”). Interest payments will include interest accrued
from and including the immediately preceding Interest Payment Date or, in the case of the first Interest Payment Date, from and including April 25, 2007, to but excluding such Interest Payment Date.
 (c) The amount of interest payable for any full quarterly period, or, following a successful remarketing, for any full semi-annual period, will be
computed on the basis of a 360-day year consisting of twelve 30-day months. The amount of interest payable for any period shorter than a full quarterly or semi-annual period, as the case may be, for which interest is computed will be computed
on the basis of a 30-day month and, for any period less than a month, on the basis of the actual number of days elapsed per 30-day month. In the event that any scheduled Interest Payment Date falls on a day that is not a Business Day, then
payment of interest payable on such Interest Payment Date will be made on the next succeeding day which is a Business Day (and without any interest or other payment in respect of any such delay), except that, if such Business Day is in the next
calendar year, then such payment will be made on the preceding Business Day, in each case, with the same force and effect as if made on such scheduled Interest Payment Date. 
  

 5 

 Section 2.06. No Defeasance. The provisions of Article 14 of the Base Indenture
shall not apply to the Senior Notes. 
 Section 2.07. No Sinking Fund. The Senior Notes are not entitled to the benefit
of any sinking fund. 
 Section 2.08. Voting Rights. The provisions of Section 1505(c) of the Base Indenture shall
not apply to the Senior Notes. 
 ARTICLE 3 
 FORM OF SENIOR NOTE 
 Section 3.01. Form of Senior Note. The Senior Notes and the
Trustee’s Certificate of Authentication to be endorsed thereon are to be substantially in the forms attached as Exhibit A hereto, with such changes therein as the officers of the Company executing the Senior Notes (by manual or facsimile
signature) may approve, such approval to be conclusively evidenced by their execution thereof. 
 ARTICLE 4 
 ORIGINAL ISSUE OF SENIOR NOTES 
 Section 4.01. Original Issue of Senior Notes. Senior Notes in the aggregate principal amount of $160,000,000 (up to $184,000,000 if the Underwriters exercise their over-allotment option in full) may from time to time,
upon execution of this Supplemental Indenture, be executed by the Company and delivered to the Trustee for authentication, and the Trustee shall thereupon authenticate and deliver said Senior Notes to or upon the written order of the Company
pursuant to Section 303 of the Base Indenture without any further action by the Company (other than as required by the Base Indenture). 
 ARTICLE 5 
 REMARKETING 
 Section 5.01. Remarketing Procedures. (a) The Company shall engage, no later than 35 days prior to the Remarketing Date, a nationally recognized investment bank (the “Remarketing Agent”) pursuant
to a Remarketing Agreement to be entered into among the Company, the Remarketing Agent and the Purchase Contract Agent, but providing for remarketing procedures substantially as set forth below, to sell the Senior Notes of Holders of Corporate
HiMEDS Units, other than Holders that have elected not to participate in the remarketing pursuant to the procedures set forth in paragraph (b) below, and Holders of Separate Senior Notes that have elected to participate in the remarketing
pursuant to the procedures set forth in Section 5.02 below and in Section 5.02(b) of the Purchase Contract and Pledge Agreement. 
 (b) The Pledged Senior Notes comprising part of Corporate HiMEDS Units and the Separate Senior Notes of Holders of Separate Senior Notes that have elected to participate in the Remarketing shall be remarketed by the Remarketing Agent on the
Remarketing Date, and, if necessary, on each Subsequent Remarketing Date. A Holder of Corporate HiMEDS Units may elect not to 

  

 6 

 
participate in the remarketing and retain the Senior Notes underlying such Corporate HiMEDS Units by notifying the Purchase Contract Agent of such election
and delivering the Purchase Price to the Collateral Agent on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date but no earlier than 35 Business Days prior to the Remarketing Date. Any
such payment will be paid to the Company on the Purchase Contract Settlement Date in settlement of such Holder’s obligations under the Purchase Contracts. A Holder of Corporate HiMEDS Units that has not settled the related Purchase Contract
through a Cash Settlement, an Early Settlement or Merger Early Settlement pursuant to Sections 5.02(b)(i), 5.07(a) and 5.04(b)(ii) of the Purchase Contract and Pledge Agreement or by electing not to participate in the Remarketing pursuant to this
paragraph (b) and Section 5.02(a)(ii) of the Purchase Contract and Pledge Agreement shall be deemed to have elected to participate in the Remarketing. 
 (c) No later than 10:00 a.m., New York City time, on the twenty-third Business Day preceding the Purchase Contract Settlement Date, the Company, or the Purchase Contract Agent, at the Company’s request, shall
deliver the Remarketing Notice to Holders of Corporate HiMEDS Units and Holders of Separate Senior Notes, of the Remarketing to take place on the Remarketing Date, and, if necessary, on each Subsequent Remarketing Date. The Remarketing Notice will
include the amount of cash that must be delivered by Holders of Corporate HiMEDS Units that elect not to participate in the remarketing and the deadline for such delivery and disclosure of related procedures whereby a Holder can retain the Senior
Notes pledged in respect of its Corporate HiMEDS Units, as well as information with respect to the exercise of the Put Right, including disclosure of the procedures for exercising such right. If such Corporate HiMEDS Units or Separate Senior Notes
are held in global form, the Company, or the Purchase Contract Agent, at the Company’s request, will cause the Depositary to notify the Depositary Participants of the Remarketing by no later than the twenty-third Business Day preceding the
Purchase Contract Settlement Date. 
 (d) On the second Business Day immediately preceding the Remarketing Date, no later than by 6:00 p.m.
New York City time, pursuant to the terms of the Pledge Agreement, the Custodial Agent will notify the Remarketing Agent of the aggregate principal amount of Separate Senior Notes to be remarketed. The Purchase Contract Agent shall notify, by 6:00
p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, the Remarketing Agent and the Collateral Agent of the aggregate principal amount of Senior Notes of Corporate HiMEDS Units Holders to be remarketed. No
later than noon, New York City time, on the Business Day immediately preceding the Remarketing Date, the Collateral Agent and the Custodial Agent, pursuant to the terms of the Pledge Agreement, will deliver for Remarketing to the Remarketing Agent
all Senior Notes to be remarketed. 
 (e) The right of each Holder of Senior Notes to have its Senior Notes tendered for purchase will be
limited to the extent that (i) the Remarketing Agent conducts a Remarketing pursuant to the terms of the Remarketing Agreement, (ii) the Remarketing Agent is able to find a purchaser or purchasers for the remarketed Senior Notes at a Reset
Rate such that the aggregate value of such remarketed Senior Notes is equal to 100.25% of the Remarketing Value; and (iii) such purchaser or purchasers deliver the purchase price therefor to the Remarketing Agent. 
  

 7 

 (f) Upon receipt of the notice provided above in paragraph (d) from the Purchase Contract Agent and
the Custodial Agent and such Senior Notes from the Collateral Agent and the Custodial Agent, the Remarketing Agent will, on the Remarketing Date, and, if necessary, on each Subsequent Remarketing Date, use its reasonable best efforts to
(i) establish a rate of interest that, in the opinion of the Remarketing Agent, will, when applied to the outstanding Senior Notes, enable the then current aggregate market value of the Senior Notes to have a value equal to 100.25% of the
Remarketing Value as of the Remarketing Date or as of any Subsequent Remarketing Date, as the case may be (the “Reset Rate”) and (ii) sell such Senior Notes on such date at a price equal to 100.25% of the Remarketing Value.

 (g) If, in spite of using its reasonable best efforts, the Remarketing Agent cannot establish the Reset Rate and remarket the Senior Notes
included in the remarketing at a price equal to 100.25% of the Remarketing Value on the Remarketing Date, the Remarketing Agent will attempt to establish the Reset Rate and remarket the Senior Notes included in the remarketing at a price equal to
100.25% of the Remarketing Value on each Subsequent Remarketing Date, if necessary. If, in spite of using its reasonable best efforts, the Remarketing Agent fails to remarket the Senior Notes included in the remarketing at a price equal to 100.25%
of the Remarketing Value on or before 4:00 p.m., New York City time, on the third Business Day immediately preceding the Purchase Contract Settlement Date, the remarketing will be deemed to have failed (the “Last Failed
Remarketing”). 
 (h) On the Remarketing Date and any Subsequent Remarketing Date, the Remarketing Agent shall advise the Company,
by telephone, of any successful or unsuccessful Remarketing as soon as practicable after such determination as provided in the Remarketing Agreement. 
 (i) If a successful Remarketing shall have occurred, the Remarketing Agent will, on or prior to the third Business Day following the date on which the Senior Notes were successfully remarketed, in accordance with the
Purchase Contract Agreement and the Remarketing Agreement: 
 (i) deduct and retain for itself the Remarketing Fee;

 (ii) if any Separate Senior Notes were remarketed, remit to the Custodial Agent for payment to the Holders of such Separate
Senior Notes sold in the Remarketing the remaining proceeds from such successful Remarketing attributable to the Separate Senior Notes; 
 (iii) pay the proceeds from such successful Remarketing related to the Senior Notes of Holders of Corporate HiMEDS Units that were remarketed to the Collateral Agent, which, for the benefit of the Company, will
thereupon apply such proceeds, in accordance with the Pledge Agreement in direct settlement of the Holders’ obligations under the Purchase Contracts; 
 (iv) if there remain any proceeds from such successful Remarketing, after the application of such proceeds as set forth in clauses (i) through (iii) of this sentence, then remit such remaining proceeds to
the Purchase Contract Agent and the Custodial Agent for the benefit of the Holders of the Corporate HiMEDS Units and the Separate Senior Notes that were remarketed, all determined on a pro rata basis. 
  

 8 

 (j) If a successful Remarketing occurs, the Remarketing Agent shall, as soon as practicable on the
Remarketing Date or on the Subsequent Remarketing Date, as the case may be, in the case of the Company, and by approximately 4:30 p.m., New York City time, on the Trading Day following the Remarketing Date, or the Subsequent Remarketing Date, as the
case may be, advise, by telephone: 
 (i) the Depositary and the Company of the Reset Rate determined in the Remarketing and
the aggregate principal amount of Senior Notes sold in the Remarketing; 
 (ii) each purchaser (or the Depository Participant
thereof) of the Reset Rate and the aggregate principal amount of remarketed Senior Notes such purchaser is to purchase; and 
 (iii) each purchaser to give instructions to its Depository Participant to pay the purchase price on the date of settlement for such Remarketing in same day funds against delivery of the remarketed Senior Notes purchased through the
facilities of DTC. 
 (k) Any distribution to Holders of excess funds and interest described in this Section 5.01 shall be payable at
the office of the Purchase Contract Agent or the Custodial Agent, as the case may be, in the Borough of Manhattan, New York City, or, if the Corporate HiMEDS Units or Separate Senior Notes do not remain in book-entry only form, at the option of the
Company, by check mailed to the address of the Person entitled thereto at such Person’s address as it appears on the appropriate register or by wire transfer to the account maintained in the United States designated by written notice given ten
Business Days prior to the applicable payment date by such Person. 
 (l) If a failed remarketing occurs, the Remarketing Agent and the
Company, as applicable, shall take the following actions: 
 (i) the Remarketing Agent shall notify by telephone the Company
and the Depositary that a failed remarketing has occurred; 
 (ii) the Company will cause a notice of failed remarketing to be
published by 9:00 a.m., New York City time, on the Business Day following such failed remarketing; and 
 (iii) the Company
will release this information by means of Bloomberg and Reuters (or any successor or equivalent newswires) newswires. 
 (m) The Remarketing
Agent shall remit, within three Business Days following the Last Failed Remarketing, the Pledged Senior Notes that were to be remarketed to the Collateral Agent and the Separate Senior Notes that were to be remarketed to the Custodial Agent. The
Collateral Agent, for the benefit of the Company, may exercise its rights as a secured party with respect to such Senior 

  

 9 

 
Notes, including those actions specified in Section 5.01(n) below; provided that, if upon the Last Failed Remarketing the Collateral Agent exercises
such rights for the benefit of the Company with respect to such Senior Notes, any accumulated and unpaid interest on such Senior Notes will become payable by the Company to the Purchase Contract Agent for payment to the Holders of the Corporate
HiMEDS Units to which such Senior Notes relate. Such payment will be made by the Company on or prior to 2:00 p.m., New York City time, on the Purchase Contract Settlement Date in lawful money of the United States by certified or cashier’s
check or wire transfer in immediately available funds payable to or upon the order of the Purchase Contract Agent. 
 (n) With respect to any
Senior Notes which constitute part of Corporate HiMEDS Units which are subject to the Last Failed Remarketing, the Collateral Agent for the benefit of the Company reserves all of its rights as a secured party with respect thereto and, subject to
applicable law and Section 5.02(e) of the Purchase Contract and Pledge Agreement, may, among other things permit the Company to, (A) retain and cancel such Senior Notes or (B) cause the Senior Notes to be sold, in either case, in full
satisfaction of the Holders’ obligations under the Purchase Contracts. 
 (o) In the event of a Last Failed Remarketing, the Interest
Rate payable on the Senior Notes will not be reset and interest will continue to be paid on the Quarterly Interest Payment Dates. 
 (p) In
accordance with DTC’s normal procedures, on the date of settlement of such Remarketing, the transactions described above with respect to each Senior Note remarketed in the Remarketing shall be executed through DTC, and the accounts of the
respective Depository Participants shall be debited and credited and such remarketed Senior Notes delivered by book-entry as necessary to effect purchases and sales of such remarketed Senior Notes. DTC shall make payment in accordance with its
normal procedures. 
 (q) The Remarketing Agent is not obligated to purchase any Senior Notes that otherwise would remain unsold in the
Remarketing. Neither the Company nor the Remarketing Agent shall be obligated in any case to provide funds to make payment upon tender of the Senior Notes for Remarketing. 
 (r) Under the Remarketing Agreement, the Company, in its capacity as issuer of the Senior Notes, shall be liable for, and shall pay, any and all costs
and expenses incurred in connection with the Remarketing, other than the Remarketing Fee. 
 (s) The settlement procedures set forth herein,
including provisions for payment by purchasers of the remarketed Senior Notes in the Remarketing, shall be subject to modification to the extent required by DTC or if the book-entry system is no longer available for the remarketed Senior Notes at
the time of the Remarketing, to facilitate the Remarketing of the remarketed Senior Notes in certificated form, and shall provide for the authentication and delivery of Senior Notes in a principal amount equal to the unremarketed portion of such
Senior Notes. In addition, the Remarketing Agent may modify the settlement procedures set forth herein in order to facilitate the settlement process. 
  

 10 

 Section 5.02. Optional Participation in Remarketing. (a) On or prior to 4:00 p.m.,
New York City time, on the second Business Day immediately preceding the Remarketing Date but no earlier than 35 Business Days prior to the Remarketing Date, Holders of Separate Senior Notes may elect to have their Separate Senior Notes remarketed
by delivering their Separate Senior Notes, together with a notice of such election, substantially in the form of Exhibit L to the Purchase Contract and Pledge Agreement, to the Custodial Agent. On the second Business Day immediately prior to the
Remarketing Date, by 6:00 p.m., New York City time, the Custodial Agent shall notify the Remarketing Agent of the aggregate principal amount of such Separate Senior Notes to be remarketed. The Custodial Agent will hold such Separate Senior Notes in
an account separate from the Collateral Account. A Holder of Separate Senior Notes electing to have its Separate Senior Notes remarketed will also have the right to withdraw such election by written notice to the Custodial Agent, substantially in
the form of Exhibit M to the Purchase Contract and Pledge Agreement, on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the Remarketing Date, upon which notice the Custodial Agent will return such Separate
Senior Notes to such Holder. 
 (b) On the Business Day immediately preceding the Remarketing Date, the Custodial Agent at the written
direction of the Remarketing Agent will deliver to the Remarketing Agent for remarketing all Separate Senior Notes delivered to the Custodial Agent pursuant to Section 5.02(b) of the Purchase Contract and Pledge Agreement and not withdrawn
pursuant to the terms thereof prior to such date. If the Holder of the Separate Senior Notes delivers only such notice but not the Separate Senior Notes subject to such notice, then none of such Holder’s Separate Senior Notes shall be included
in the remarketing. Once the Holder of Separate Senior Notes elects to participate in the remarketing, such Separate Senior Notes will be remarketed in the remarketing, unless such notice is properly withdrawn. In accordance with
Section 5.02(c)(ii) of the Purchase Contract and Pledge Agreement, upon the occurrence of a Last Failed Remarketing, the Remarketing Agent will promptly return such Separate Senior Notes to the Custodial Agent for redelivery to such Holders of
such Separate Senior Notes. 
 Section 5.03. Put Right. (a) If there has not been a successful remarketing prior
to the Purchase Contract Settlement Date, Holders of Separate Senior Notes will, subject to this Section 5.03, have the right (the “Put Right”) to require the Company to purchase their Senior Notes, on the Purchase Contract
Settlement Date, at a price per Senior Note equal to $1,000 ($50 per Applicable Ownership Interest) plus accrued and unpaid interest to but excluding the Purchase Contract Settlement Date (the “Put Price”). 
 (b) The Put Right of a Holder of a Separate Senior Note shall only be exercisable upon delivery of a notice to the Trustee by such Holder on or prior to
the second Business Day prior to the Purchase Contract Settlement Date. On or prior to the Purchase Contract Settlement Date, the Company shall deposit with the Trustee immediately available funds in an amount sufficient to pay, on the Purchase
Contract Settlement Date, the aggregate Put Price of all Separate Senior Notes with respect to which a Holder has exercised a Put Right. In exchange for any Separate Senior Notes surrendered pursuant to the Put Right, the Trustee shall then
distribute such amount to the Holders of such Separate Senior Notes. 
 (c) Upon the payment by the Company of the amounts due in respect of
Separate Senior Notes as to which Put Rights are exercised, the Trustee (or its agent) will reduce the principal amount of any global certificate theretofore representing such Separate Senior Notes, such reduction to equal the aggregate principal
amount of such Separate Senior Notes repaid. 
  

 11 

 Section 5.04. Additional Event of Default. In addition to the events listed as
Events of Default in Section 501 of the Base Indenture, it shall be an additional Event of Default with respect to the Senior Notes, if the Company shall not have satisfied its obligation to pay the Put Price when due with respect to any
Separate Senior Note following exercise of the Put Right in accordance with Section 5.03. 
 ARTICLE 6 
 TAX TREATMENT 
 Section 6.01. Tax
Treatment. The Company intends, and by acceptance of an interest in a Senior Note, each Holder of a Senior Note will be deemed to have agreed to treat the Senior Note as indebtedness for tax purposes.
 ARTICLE 7 
 MISCELLANEOUS 
 Section 7.01. Ratification of Indenture. The Base Indenture, as supplemented by this Supplemental Indenture, is in all respects
ratified and confirmed, and this Supplemental Indenture shall be deemed part of the Indenture in the manner and to the extent herein and therein provided. 
 Section 7.02. Responsibility for Recitals, Etc. The recitals herein and in the Senior Notes (except in the Trustee’s certificate of authentication) shall be taken as the statements of the
Company, and the Trustee assumes no responsibility for the correctness thereof. The Trustee makes no representations as to the validity or sufficiency of this Supplemental Indenture or of the Senior Notes. The Trustee shall not be
accountable for the use or application by the Company of the Senior Notes or of the proceeds thereof. 
 Section 7.03. Separability. In case any one or more of the provisions contained in this Supplemental Indenture or in the Senior Notes shall for any reason be held to be invalid, illegal or unenforceable in any respect,
then, to the extent permitted by law, such invalidity, illegality or unenforceability shall not affect any other provisions of this Supplemental Indenture or of the Senior Notes, but this Supplemental Indenture and the Senior Notes shall be
construed as if such invalid or illegal or unenforceable provision had never been contained herein or therein. 
 Section 7.04. Successors and Assigns. This Agreement shall be binding upon and inure to the benefit of the respective successors and assigns of the Company and the Trustee. 
 Section 7.05. Governing Law. THIS SUPPLEMENTAL INDENTURE AND THE SENIOR NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE
WITH, THE LAWS OF THE STATE OF NEW YORK. The Company and the Trustee hereby submit to the nonexclusive jurisdiction of the United States District Court for the Southern District of New York and of any New York state court sitting in New York
City for the purposes of all legal proceedings arising out of or relating to this Supplemental Indenture or the Senior Notes. The Company and the Trustee irrevocably waive to the fullest extent permitted by applicable law, any objection which
they may now or hereafter have to the laying of the venue of any such proceeding brought in such a court and any claim that any such proceeding brought in such a court has been brought in an inconvenient forum. 
  

 12 

 Section 7.06. Counterparts. This Supplemental Indenture may be executed in any
number of counterparts by the parties hereto on separate counterparts, each of which, when so executed and delivered, shall be deemed an original, but all such counterparts shall together constitute one and the same instrument. 
  

 13 

 IN WITNESS WHEREOF, the parties hereto have caused this Supplemental Indenture to be duly executed, as of
the day and year first written above. 
  

					
	BANKUNITED FINANCIAL CORPORATION	 	
			
	By:	 	 /s/ Humberto Lopez
	 	
	Name:	 	Humberto Lopez	 	
	Title:	 	Senior Executive Vice President and Chief Financial Officer	 	
		
	THE BANK OF NEW YORK, as Trustee	 	
			
	By:	 	 /s/ Stacey B. Poindexter
	 	
	Name:	 	Stacey B. Poindexter	 	
	Title:	 	Assistant Vice President	 	

  

 14 

 EXHIBIT A 
 [IF THIS SENIOR NOTE IS TO BE A GLOBAL SECURITY, INSERT: 
 THIS SENIOR NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE
INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY TRUST COMPANY OR A NOMINEE OF THE DEPOSITORY TRUST COMPANY. THIS SENIOR NOTE IS EXCHANGEABLE FOR SECURITIES REGISTERED IN THE NAME OF A PERSON OTHER THAN THE
DEPOSITORY TRUST COMPANY OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE AND MAY NOT BE TRANSFERRED EXCEPT AS A WHOLE BY THE DEPOSITORY TRUST COMPANY TO A NOMINEE OF THE DEPOSITORY TRUST COMPANY OR BY A NOMINEE OF THE
DEPOSITORY TRUST COMPANY TO THE DEPOSITORY TRUST COMPANY OR ANOTHER NOMINEE OF THE DEPOSITORY TRUST COMPANY. 
 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.] 
 BANKUNITED FINANCIAL CORPORATION 
 6.37% Senior Notes due May 17, 2012 
 $            
  

			
	 No. [    ]
	  	CUSIP No. 06652 BAF0

 BANKUNITED FINANCIAL CORPORATION, a corporation organized and existing under the laws of Florida
(hereinafter called the “Company,” which term includes any successor corporation under the Indenture hereinafter referred to), for value received, hereby promises to pay to
                                        ,
or its registered assigns, the principal sum of                      dollars
($            ), [if this Senior Note is a Global Security insert: or such revised amount as shall be set forth in the Schedule of Increases or Decreases in the Senior Note attached
hereto], on the Stated Maturity, and to pay interest thereon from April 25, 2007 or from the most recent Interest Payment Date to which interest has been paid or duly provided for, quarterly in arrears on February 17, May 17,
August 17 and November 17 (each a “Quarterly Interest Payment Date”) of each year, commencing August 17, 2007, at the rate of 6.37% per annum to, but excluding, the Reset Date. If the Senior Notes are not
successfully remarketed, the Interest Rate will remain 6.37% per year to, to excluding, the Stated Maturity. In the event of a successful Remarketing of the Senior Notes, the Interest Rate will be reset by the Remarketing Agent at the
appropriate Reset Rate with effect from the Reset Date. If the Interest Rate is so reset, 

  

 15 

 
the Senior Notes will bear interest at the Reset Rate from the related Reset Date until the principal thereof and interest thereon is paid or duly made
available for payment and shall bear interest, to the extent permitted by law, compounded semi-annually, on any overdue principal and payment of interest at the Interest Rate through and including the day immediately preceding the Reset Date and at
the Reset Rate thereafter. Interest on the Senior Notes shall be payable initially quarterly in arrears on February 17, May 17, August 17 and November 17 of each year (each, a “Quarterly Interest Payment Date”),
commencing August 17, 2007, to the Person in whose name such Senior Note, or any predecessor Senior Note, is registered at the close of business on the Record Date for such Interest Payment Date. Following a successful Remarketing of the
Senior Notes, interest on the Senior Notes shall be payable semi-annually in arrears on the Subsequent Interest Payment Dates (together with Quarterly Interest Payment Dates, the “Interest Payment Dates”).
 Payment of the principal of and interest on this Senior Note will be made at the office or agency of the Company maintained for that purpose in the
Borough of Manhattan, The City of New York, which shall initially be the Corporate Trust Office of the Trustee, 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 Holder at such address as shall appear in the Security Register or by wire transfer to an account appropriately designated by
the Holder entitled to payment. 
 Reference is hereby made to the further provisions of this Senior 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 signature, this Senior Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 
  

 16 

 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed under its corporate seal.

 Dated:
                             
  

					
	BANKUNITED FINANCIAL CORPORATION
			
	By:	 	  
	 	
	Name:	 		 	
	Title:	 		 	

  

 17 

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 
 This is one of the Senior Notes referred to in the within mentioned Indenture. 
 Dated:                              
  

					
	THE BANK OF NEW YORK, as Trustee
			
	By:	 	  
	 	
		 	Authorized Officer	 	

  

 18 

 FORM OF REVERSE OF SENIOR NOTE 
 This Senior Note is one of a duly authorized issue of securities of the Company (herein called the “Senior Notes”), issued and to be
issued in one or more series under an Indenture dated as of April 18, 2007 between the Company and The Bank of New York (the “Base Indenture,” and as further supplemented by the First Supplemental Indenture dated as of
April 25, 2007 between the Company and The Bank of New York, the “Indenture”), , 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 Senior Notes and of the terms upon which the Senior Notes are, and are to be, authenticated and delivered. This Senior Note is one of the series designated on the face hereof, initially limited in
aggregate principal amount to $160,000,000 (up to $184,000,000 if the Underwriters exercise their over-allotment option in full). 
 This
Senior Note shall mature and the principal amount thereof shall be due and payable together with all accrued and unpaid interest thereon on the Stated Maturity. The “Stated Maturity” shall mean May 17, 2012. 
 “Subsequent Interest Payment Date” means, following the Reset Date, each semi-annual interest payment date established by the
Remarketing Agent in connection with the successful remarketing of the Senior Notes. 
 If this Senior Note is not a component of a Corporate
HiMEDS Unit, the Holder of this Senior Note may, on or prior to 4:00 p.m., New York City time, on the second Business Day immediately preceding the first Remarketing Date, elect to have this Senior Note remarketed in the same manner as Pledged
Senior Notes, by delivering this Senior Note, along with a notice of such election to The Bank of New York, as Custodial Agent, for Remarketing in accordance with the Purchase and Pledge Agreement. 
 If there has not been a successful remarketing prior to the Purchase Contract Settlement Date and this Senior Note is not a component of a Corporate
HiMEDS Unit, the holder of this Senior Note will have the right to require the Company to purchase this Senior Note, all as more fully described in the Indenture. 
 The Senior Notes are not entitled to the benefit of any sinking fund and will not be subject to defeasance. 
 If an Event of Default with respect to Senior Notes of this series shall occur and be continuing, the principal of the Senior Notes of this series may be declared 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 Senior Notes at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Senior Notes at the time Outstanding. The Indenture
also contains provisions permitting the Holders of specified percentages in principal amount of the Senior Notes at the time Outstanding, on behalf of the Holders of all Senior Notes, to waive compliance by the Company with certain provisions of the
Indenture and certain past 

  

 19 

 
defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Senior Note shall be conclusive and binding upon
such Holder and upon all future Holders of this Senior Note and of any Senior 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 Senior
Note. 
 No reference herein to the Indenture and no provision of this Senior Note or of the Indenture shall alter or impair the obligation
of the Company, which is absolute and unconditional, to pay the principal of and interest on this Senior Note at the times, place and rate, and in the coin or currency, herein prescribed. 
 As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Senior Note is registrable in the Securities
Register, upon surrender of this Senior Note for registration of transfer at the office or agency of the Company in any place where the principal of and interest on this Senior Note are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Securities Registrar duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or more new Senior Notes of this series, of authorized
denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 
 The Senior Notes of
this series are issuable only in registered form without coupons in denominations of $1,000 and any integral multiple thereof except as provided for in Section 2.03 of First Supplemental Indenture. As provided in the Indenture and subject
to certain limitations therein set forth, Senior Notes of this series are exchangeable for a like aggregate principal amount of Senior Notes of this series of a different authorized denomination, as requested by the Holder surrendering the same.

 No service charge shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient
to cover any tax or other governmental charge payable in connection therewith. 
 Prior to due presentment of this Senior Note for
registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name this Senior Note is registered as the owner hereof for all purposes, whether or not this Senior Note be overdue, and
neither the Company, the Trustee nor any such agent shall be affected by notice to the contrary. 
 All terms used in this Senior Note which
are defined in the Indenture shall have the meanings assigned to them in the Indenture. 
 The Company intends to treat and each Holder, by
acceptance of a beneficial interest in a Corporate HiMEDS Unit, agrees to treat (1) each Corporate HiMEDS Unit as an investment unit consisting of an interest in a Senior Note and a Purchase Contract, (2) the initial fair market value of
each Senior Note as $50 and the initial fair market value of each Purchase Contract as $0 and to allocate the purchase price for each Corporate HiMEDS Unit accordingly, (3) each Treasury HiMEDS Unit as an investment unit consisting of Treasury
securities and a Purchase Contract, (4) the Senior Notes as indebtedness for tax purposes and (5) the Holder as the owner of the applicable interests in the Collateral Account, including the Senior Notes or the Treasury Securities.

  

 20 

 ASSIGNMENT 
 FOR VALUE RECEIVED, the undersigned assigns and transfers this Senior Note to: 

	
	  

	  

 (Insert assignee’s social security or tax identification number) 

	
	  

	  

	  

 (Insert address and zip code of assignee) 
 and irrevocably appoints 

	
	  

	  

	  

 agent to transfer this Senior Note on the books of the Company. The agent may substitute another to act for him or
her. 
 Date:
                             
  

			
	 Signature:

	  

		
	 Signature
 Guarantee:
	 	  

 (Sign exactly as your name appears on the other side of this Senior Note) 
  

	
	 DTC
 Participant #:
                    

  

 21 

 SIGNATURE GUARANTEE 
 Signatures must be guaranteed by an “eligible guarantor institution” meeting the requirements of the 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 Registrar in addition to, or in substitution for, STAMP, all in accordance with the Securities Exchange Act of 1934, as amended. 

 

 22 

 OPTION TO ELECT REPAYMENT 
 Put Right Exercise 
 6.37% Senior Notes due 2012 
  

	To:	BankUnited Financial Corporation 

 The Bank of New York, as
Trustee 
 The undersigned Holder of Senior Notes due 2012 issued by BankUnited Financial Corporation (the “Company”) hereby
exercises the Put Right (as defined in the Indenture dated as of April 18, 2007, as amended and supplemented by the First Supplemental Indenture dated as of April 25, 2007 (as amended and supplemented, the “Indenture”), between
the Company and The Bank of New York, as trustee requests and instructs the Company to repurchase this Security, or the portion hereof (which is $1,000 principal amount or a integral multiple thereof) designated below, in accordance with the terms
of the Indenture and directs that the check in payment for this Security or the portion thereof and any Securities representing any unrepurchased principal amount hereof, be issued and delivered to the Holder hereof unless a different name has been
indicated below. If any portion of this Security not repurchased is to be issued in the name of a Person other than the undersigned, the undersigned shall pay all transfer taxes payable with respect thereto. 
  

							
	 Dated:
	 		  	  
	  	
		 		  	Signature(s)	  	

 The signature(s) should be guaranteed by an eligible guarantor institution (banks, stockbrokers, savings and loan
associations and credit unions with membership in an approved signature guarantee medallion program), pursuant to S.E.C. Rule 17Ad-15. 
  

	
	   
	Signature Guarantee

 Fill in if a check is to be issued, or Securities are to be issued, other than to and in the name of registered
holder: 
  

			
	  
	    	
	 (Name)
	    	Principal amount to be purchased
		    	(if less than all): $            ,000
		
	  
	    	
	 (Street Address)
	    	
	  
	    	  

	(City, state and zip code)	    	Social Security or Other Taxpayer Number
	Please print name and address	    	

  

 23 

 SCHEDULE OF INCREASES OR DECREASES IN SENIOR NOTE 
 The following increases or decreases in a part of this Senior Note have been made: 
  

									
	 Date
	  	 Amount of
decrease
in principal
amount

of this Senior Note
	  	 Amount of increase
in
 principal amount of
this Senior Note
	  	 Principal amount
of
 this Senior Note
following such
decrease (or
increase)
	  	Signature of
authorized
officer of
Trustee

  

 24

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