Pedge Agreement



 EXHIBIT 4.6 
  

  
 UNUMPROVIDENT
CORPORATION, 
  
 BNY MIDWEST TRUST COMPANY, 

 
 as Collateral Agent, Custodial Agent 
  
 and Securities Intermediary 
  
 AND 
  
 JPMORGAN CHASE BANK, 
  
 as Purchase Contract Agent 
  
 PLEDGE AGREEMENT 
  
 Dated as of May 11, 2004 
  








 TABLE OF CONTENTS 
  

					
	 ARTICLE I
	  	 
	 DEFINITIONS
	  	 
			
	 SECTION 1.1
	  	 Definitions
	  	2
		
	 ARTICLE II
	  	 
	 PLEDGE; CONTROL AND PERFECTION
	  	 
			
	 SECTION 2.1
	  	 The Pledge
	  	4
	 SECTION 2.2
	  	 Control and Perfection
	  	6
		
	 ARTICLE III
	  	 
	 PAYMENTS ON COLLATERAL
	  	 
			
	 SECTION 3.1
	  	 Payments
	  	8
	 SECTION 3.2
	  	 Application of Payments
	  	9
		
	 ARTICLE IV
	  	 
	 SUBSTITUTION, RELEASE, REPLEDGE AND SETTLEMENT OF NOTES
	  	 
			
	 SECTION 4.1
	  	 Collateral Substitution and the Creation of Stripped Units
	  	10
	 SECTION 4.2
	  	 Collateral Substitution and the Re-Creation of Normal Units
	  	10
	 SECTION 4.3
	  	 Termination Event
	  	11
	 SECTION 4.4
	  	 Early Settlement; Merger Early Settlement; Cash Settlement
	  	12
	 SECTION 4.5
	  	 Remarketing; Application of Proceeds; Settlement
	  	13
		
	 ARTICLE V
	  	 
	 VOTING RIGHTS — NOTES
	  	 
			
	 SECTION 5.1
	  	 Exercise by Purchase Contract Agent
	  	15
		
	 ARTICLE VI
	  	 
	 RIGHTS AND REMEDIES; SPECIAL EVENT REDEMPTION
	  	 
			
	 SECTION 6.1
	  	 Rights and Remedies of the Collateral Agent
	  	16
	 SECTION 6.2
	  	 Substitutions
	  	17
	 SECTION 6.3
	  	 Special Event Redemption
	  	17
		
	 ARTICLE VII
	  	 
	 REPRESENTATIONS AND WARRANTIES; COVENANTS
	  	 
			
	 SECTION 7.1
	  	 Representations and Warranties of the Holders
	  	18
	 SECTION 7.2
	  	 Representations and Warranties of the Collateral Agent, Custodial Agent and Securities Intermediary
	  	18

  










					
	 SECTION 7.3
	  	 Covenants
	  	19
		
	 ARTICLE VIII
	  	 
	 THE COLLATERAL AGENT
	  	 
			
	 SECTION 8.1
	  	 Appointment, Powers and Immunities
	  	20
	 SECTION 8.2
	  	 Instructions of the Company
	  	21
	 SECTION 8.3
	  	 Reliance
	  	21
	 SECTION 8.4
	  	 Rights in Other Capacities
	  	22
	 SECTION 8.5
	  	 Non-Reliance on Collateral Agent
	  	22
	 SECTION 8.6
	  	 Compensation and Indemnity
	  	22
	 SECTION 8.7
	  	 Failure to Act
	  	23
	 SECTION 8.8
	  	 Resignation
	  	24
	 SECTION 8.9
	  	 Right to Appoint Agent or Advisor
	  	25
	 SECTION 8.10
	  	 Survival
	  	25
	 SECTION 8.11
	  	 Exculpation
	  	25
		
	 ARTICLE IX
	  	 
	 AMENDMENT
	  	 
			
	 SECTION 9.1
	  	 Amendment Without Consent of Holders
	  	26
	 SECTION 9.2
	  	 Amendment with Consent of Holders
	  	26
	 SECTION 9.3
	  	 Execution of Amendments
	  	27
	 SECTION 9.4
	  	 Effect of Amendments
	  	27
	 SECTION 9.5
	  	 Reference to Amendments
	  	28
		
	 ARTICLE X
	  	 
	 MISCELLANEOUS
	  	 
			
	 SECTION 10.1
	  	 No Waiver
	  	28
	 SECTION 10.2
	  	 Governing Law
	  	28
	 SECTION 10.3
	  	 Notices
	  	29
	 SECTION 10.4
	  	 Successors and Assigns
	  	29
	 SECTION 10.5
	  	 Counterparts
	  	29
	 SECTION 10.6
	  	 Severability
	  	29
	 SECTION 10.7
	  	 Expenses, Etc.
	  	29
	 SECTION 10.8
	  	 Security Interest Absolute
	  	30
		
	 EXHIBIT A     Instruction from Purchase Contract Agent to Collateral Agent
	  	 
	 EXHIBIT B     Instruction to Purchase Contract Agent
	  	 
	 EXHIBIT C     Instruction to Custodial Agent Regarding Remarketing
	  	 
	 EXHIBIT D     Instruction to Custodial Agent Regarding Withdrawal from Remarketing
	  	 

  









 PLEDGE AGREEMENT 
  
 PLEDGE AGREEMENT, dated as of May 11, 2004 (this “Agreement”), among UnumProvident Corporation, a Delaware
corporation (the “Company”), BNY Midwest Trust Company, an Illinois trust company, not individually but solely as collateral agent (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 Code (as defined herein) (in such capacity,
together with its successors in such capacity, the “Securities Intermediary”), and JPMorgan Chase Bank, a New York banking corporation, not individually but solely as purchase contract agent and as attorney-in-fact of the Holders from time
to time of the Units (in such capacity, together with its successors in such capacity, the “Purchase Contract Agent”) under the Purchase Contract Agreement (as defined herein). 
  
 RECITALS 
  
 WHEREAS, the Company and the Purchase Contract Agent are parties to the Purchase Contract Agreement, dated as of the date hereof (as modified and
supplemented and in effect from time to time, the “Purchase Contract Agreement”), pursuant to which there may be issued Units having a Stated Amount of $25 per Unit, all of which will initially be Normal Units. 
  
 WHEREAS, each Normal Unit will be comprised of (a) a Purchase Contract and
(b) either beneficial ownership of (i) a 1/40, or 2.5%, beneficial ownership interest in a Note having a $1,000 principal amount or (ii) following the remarketing of the Notes in accordance with the Purchase Contract Agreement and the Remarketing
Agreement or following a Special Event Redemption in accordance with the Purchase Contract Agreement and the terms of the Notes, beneficial ownership of the appropriate Treasury Consideration. 
  
 WHEREAS, in accordance with the terms of the Purchase Contract Agreement, a
Holder of Normal Units may separate the Notes or the appropriate Treasury Consideration, as applicable, from the related Purchase Contracts by substituting for such Notes or the appropriate Treasury Consideration, as the case may be, Treasury
Securities that will pay in the aggregate an amount equal to the aggregate Stated Amount of such Normal Units. Upon such separation, the Normal Units will become Stripped Units. Each Stripped Unit will be comprised of (a) a Purchase Contract and (b)
a 1/40 undivided beneficial interest in a Treasury Security. 
  
 WHEREAS, pursuant to the terms of the Purchase Contract Agreement and the Purchase Contracts, the Holders, from time to time, 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 hereby of the Notes, any Treasury Consideration and any Treasury 

  









 
Securities delivered in exchange therefor to secure each Holder’s obligations under the related Purchase Contract, as provided herein and subject to the
terms hereof. 
  
 NOW, THEREFORE, in consideration of the premises
and for other good and valuable consideration, the receipt and sufficiency of which is hereby acknowledged, the Company, the Collateral Agent, the Securities Intermediary, the Custodial Agent and the Purchase Contract Agent, on its own behalf and as
attorney-in-fact of the Holders from time to time of the Units, agree as follows: 
  
 ARTICLE I 
  
 DEFINITIONS

  
 SECTION 1.1 Definitions 
  
 For all purposes of this Agreement, except as otherwise expressly provided
or unless the context otherwise requires: 
  
 (a)
capitalized terms used but not defined herein are used as defined in the Purchase Contract Agreement; 
  
 (b) the defined terms in this Agreement have the meanings assigned to them in this Article and include the plural as well as the singular;
and 
  
 (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 or other subdivision. 
  
 “Agreement” means this agreement 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. 
  
 “Code” has the meaning specified in Section 6.1 hereof. 
  

“Collateral” has the meaning specified in Section 2.1 (a) hereof. 
  
 “Collateral Account” means the securities account (number
[            ]) maintained at BNY Midwest Trust Company, 2 North LaSalle Street, Suite 1020, Chicago, Illinois 60602, in the name “JPMorgan Chase Bank, as Purchase Contract Agent on
behalf of the holders of certain securities of UnumProvident Corporation, Collateral Account subject to the security interest of BNY Midwest Trust Company, as Collateral Agent, for the benefit of UnumProvident Corporation, as pledgee” and any
successor account. 
  
 “Collateral Agent” has the
meaning specified in the first paragraph of this Agreement. 
  

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 “Company” means the Person named as the “Company” in the first paragraph of this
Agreement until a successor shall have become such, and thereafter “Company” shall mean such successor. 
  
 “Custodial Agent” has the meaning specified in the first paragraph of this Agreement. 
  
 “Intermediary” means any entity that in the ordinary course of its
business maintains securities accounts for others and is acting in that capacity. 
  
 “Pledge” has the meaning specified in Section 2.1 hereof. 
  
 “Pledged Notes” has the meaning specified in Section 2.1 hereof. 
  
 “Pledged Treasury Consideration” has the meaning specified in Section 2.1 hereof. 
  
 “Pledged Treasury Securities” has the meaning specified in Section
2.1 hereof. 
  
 “Proceeds” means all interest,
dividends, cash, instruments, securities, financial assets (as defined in Section 8-102(a)(9) of the Code) and other property from time to time received, receivable or otherwise distributed upon the sale, exchange, collection or disposition of the
Collateral or any proceeds thereof. 
  
 “Purchase Contract
Agent” has the meaning specified in the first paragraph of this Agreement. 
  
 “Purchase Contract Agreement” has the meaning specified in the Recitals. 
  
 “Restricted Securities” means all or any portion of the Units and the securities constituting the Units (the “Underlying Securities”),
except any such Unit or Underlying Security that (i) has been effectively registered under the Securities Act and sold in a manner contemplated by the Shelf Registration Statement, (ii) has been transferred in compliance with Rule 144 under the
Securities Act (or any successor provision thereto) or is transferable pursuant to Rule 144(k) as if it was held by a non-affiliate of the Company (or any successor provision thereto), or (iii) such Unit or Underlying Security ceases to be
outstanding (whether as a result of redemption, repurchase, cancellation or conversion). 
  
 “Securities Act” means the Securities Act of 1933, as amended. 
  
 “Securities Intermediary” has the meaning specified in the first paragraph of this Agreement. 
  
 “Security Entitlement” has the meaning set forth in Section
8-102(a)(17) of the Code. 
  

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 “Separate Notes” means any Notes that are not Pledged Notes. 
  
 “Shelf Registration Statement” means a registration statement for
the registration and resale under Rule 415 under the Securities Act of the Company’s Units and Underlying Securities, in accordance with the Registration Rights Agreement, dated as of May 11, 2004, between the Company and the Subscribers named
therein. 
  
 “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. 
  
 “Transfer” means, with respect to the Collateral and in accordance
with the instructions of the Collateral Agent, the Purchase Contract Agent or the Holder, as applicable: 
  

	 	(i)	in the case of Collateral consisting of securities which cannot be delivered by book-entry or which the parties agree are to be delivered in physical form, delivery in appropriate
physical form to the recipient accompanied by any duly executed instruments of transfer, assignments in blank, transfer tax stamps and any other documents necessary to constitute a legally valid transfer to the recipient; 


 

	 	(ii)	in the case of Collateral consisting of securities maintained in book-entry form by causing a “securities intermediary” (as defined in Section 8-102(a)(14) of the Code) to
(a) credit a “security entitlement” (as defined in Section 8-102(a)(17) of the Code) with respect to such securities to a “securities account” (as defined in Section 8-501(a) of the Code) maintained by or on behalf of the
recipient and (b) to issue a confirmation to the recipient with respect to such credit. In the case of Collateral to be delivered to the Collateral Agent, the securities intermediary shall be the Securities Intermediary and the securities account
shall be the Collateral Account. In addition, any Transfer of Treasury Securities and Treasury Consideration hereunder shall be made in accordance with the TRADES Regulations and other applicable law. 

  
 ARTICLE II 
  
 PLEDGE; CONTROL AND PERFECTION 
  
 SECTION 2.1 The Pledge 
  
 (a) The Holders from time to time acting through the Purchase Contract Agent, as their attorney-in-fact, and the Purchase Contract Agent, as such
attorney-in-fact, hereby pledge and grant to the Collateral Agent, for the benefit of the Company, as 

  

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collateral security for the performance when due by such Holders of their respective obligations under the related Purchase Contracts, a security interest in
all of the right, title and interest of the Purchase Contract Agent and such Holders in: 
  

	 	(i)	(A) the Notes, Treasury Consideration or Treasury Securities constituting a part of the Units, (B) any Treasury Securities delivered in exchange for any Notes or Treasury
Consideration, as applicable, in accordance with Section 4.1 hereof, and (C) any Notes or Treasury Consideration, as applicable, delivered in exchange for any Treasury Securities in accordance with Section 4.2 hereof, in each case that have been
Transferred to or otherwise received by the Collateral Agent and not released by the Collateral Agent to such Holders under the provisions of this Agreement; 

  

	 	(ii)	the Collateral Account and all securities, financial assets, security entitlements, cash and other property credited thereto and all Security Entitlements related thereto;


  

	 	(iii)	all Proceeds of the foregoing; and 

  

	 	(iv)	all powers and rights now owned or hereafter acquired under or with respect to any of the foregoing (all of the foregoing, collectively, the “Collateral”).


  
 (b) Prior to or concurrently with the execution
and delivery of this Agreement, the Purchase Contract Agent, on behalf of the initial Holders of the Units, shall cause the Notes comprising a part of the Normal Units to be Transferred to the Collateral Agent for the benefit of the Company.

  
 (c) The pledge provided in this Section 2.1 is herein referred
to as the “Pledge” and the Notes (including any Notes that are delivered pursuant to Section 6.2 hereof), Treasury Consideration and Treasury Securities subject to the Pledge, excluding any Notes, Treasury Consideration or Treasury
Securities released from the Pledge as provided in Sections 4.1 and 4.2 hereof, respectively, are hereinafter referred to as “Pledged Notes,” “Pledged Treasury Consideration” and “Pledged Treasury Securities,”
respectively. Subject to the Pledge and the provisions of Section 2.2 hereof, the Holders from time to time shall have full beneficial ownership of the Collateral. For purposes of perfecting the Pledge under applicable law, including, to the extent
applicable, the TRADES Regulations or the Uniform Commercial Code as adopted and in effect in any applicable jurisdiction, the Collateral Agent shall be the agent of the Company as provided herein. Whenever directed by the Collateral Agent acting on
behalf of the Company, the Securities Intermediary shall have the right to reregister the Notes or any other securities held in physical form in its name. 
  
 (d) Except as may be required in order to release Notes or Treasury Consideration, as applicable, in connection with a Special Event Redemption or with a


  

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Holder’s election to convert its investment from a Normal Unit to a Stripped Unit, or except as otherwise required to release Notes as specified herein,
neither the Collateral Agent, the Custodial Agent nor the Securities Intermediary shall relinquish physical possession of any certificate evidencing Notes, Treasury Securities or Treasury Consideration, as applicable, prior to the termination of
this Agreement. If it becomes necessary for the Securities Intermediary to relinquish physical possession of a certificate in order to release a portion of the Notes evidenced thereby from the Pledge, the Securities Intermediary shall use its best
efforts to obtain physical possession of a replacement certificate evidencing any Notes remaining subject to the Pledge hereunder registered to it or endorsed in blank within fifteen days of the date it relinquished possession. The Securities
Intermediary shall promptly notify the Company and the Collateral Agent of its inability to obtain possession of any such replacement certificate as required hereby. 
  
 SECTION 2.2 Control and Perfection 
  

(a) In connection with the Pledge granted in Section 2.1, and subject to the other provisions of this Agreement, the Holders from time to time acting
through the Purchase Contract Agent, as their attorney-in-fact, hereby authorize and direct the Securities Intermediary (without the necessity of obtaining the further consent of the Purchase Contract Agent or any of the Holders), and the Securities
Intermediary agrees, to comply with and follow any instructions and entitlement orders (as defined in Section 8-102(a)(8) of the Code) that the Collateral Agent may deliver pursuant to the terms hereof or upon the written direction of the Company
with respect to the Collateral Account, the Collateral credited thereto and any Security Entitlements with respect to any thereof. In the event the Securities Intermediary receives from the Holders or the Purchase Contract Agent entitlement orders
which conflict with entitlement orders received from the Collateral Agent, the Securities Intermediary shall follow the entitlement orders received from the Collateral Agent. Such instructions and entitlement orders may, without limitation, direct
the Securities Intermediary to transfer, redeem, assign, or otherwise deliver the Notes, the Treasury Consideration and the Treasury Securities, and any Security Entitlements with respect thereto, or sell, liquidate or dispose of such assets through
a broker designated by the Company, and to pay and deliver any income, proceeds or other funds derived therefrom to the Company. The Holders from time to time acting through the Purchase Contract Agent hereby further authorize and direct the
Collateral Agent, as agent of the Company, to, pursuant to the terms hereof or upon written direction of the Company, itself issue instructions and entitlement orders, and to otherwise take action, with respect to the Collateral Account, the
Collateral credited thereto and any Security Entitlements with respect thereto, all without the necessity of obtaining the further consent of the Purchase Contract Agent or any of the Holders. The Collateral Agent shall be the agent of the Company
and shall act only in accordance with the terms hereof or as otherwise directed in writing by the Company. Without limiting the generality of the foregoing, the Collateral Agent shall issue entitlement orders to the Securities Intermediary when and
as required by the terms hereof or as otherwise directed in writing by the Company. 
  

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 (b) The Securities Intermediary hereby confirms and agrees that: 
  

	 	(i)	all securities or other property underlying any financial assets credited to the Collateral Account shall be registered in the name of the Securities Intermediary, or its nominee,
indorsed to the Securities Intermediary, or its nominee, or in blank or credited to another Collateral Account maintained in the name of the Securities Intermediary and in no case will any financial asset credited to the Collateral Account be
registered in the name of the Purchase Contract Agent, the Collateral Agent, the Company or any Holder, payable to the order of, or specially indorsed to, the Purchase Contract Agent, the Collateral Agent, the Company or any Holder except to the
extent the foregoing have been specially indorsed to the Securities Intermediary or in blank; 

  

	 	(ii)	all property delivered to the Securities Intermediary pursuant to this Agreement (including, without limitation, any Notes, Treasury Consideration or Treasury Securities) will be
promptly credited to the Collateral Account; 

  

	 	(iii)	the Collateral Account is an account to which financial assets are or may be credited, and the Securities Intermediary shall, subject to the terms of this Agreement, treat the
Purchase Contract Agent as entitled to exercise the rights of any financial asset credited to the Collateral Account; 

  

	 	(iv)	the Securities Intermediary has not entered into, and until the termination of this Agreement will not enter into, any agreement with any other Person relating to the Collateral
Account and/or any financial assets credited thereto pursuant to which it has agreed to comply with entitlement orders (as defined in Section 8-102(a)(8) of the Code) of such other Person; and 

  

	 	(v)	the Securities Intermediary has not entered into, and until the termination of this Agreement will not enter into, any agreement with the Company, the Collateral Agent or the
Purchase Contract Agent purporting to limit or condition the obligation of the Securities Intermediary to comply with entitlement orders as set forth in this Section 2.2 hereof. 

  
 (c) The Securities Intermediary hereby agrees that 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” within the meaning of Section 8-102(a)(9) of the Code. 
  
 (d) In the event of any conflict between this Agreement (or any portion
thereof) and any other agreement now existing or hereafter entered into, the terms of this Agreement shall prevail. 
  

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 (e) The Purchase Contract Agent hereby irrevocably constitutes and appoints the Collateral Agent and the
Company, with full power of substitution, as the Purchase Contract Agent’s attorney-in-fact to take on behalf of, and in the name, place and stead of the Purchase Contract Agent and the Holders, any action necessary or desirable to perfect and
to keep perfected the security interest in the Collateral referred to in Section 2.1. The grant of such power-of-attorney shall not be deemed to require of the Collateral Agent any specific duties or obligations not otherwise assumed by the
Collateral Agent hereunder. Notwithstanding the foregoing, in no event shall the Collateral Agent, the Custodial Agent or the Securities Intermediary be responsible for the preparation or filing of any financing or continuation statements in the
appropriate jurisdictions or responsible for maintenance or perfection of any security interest hereunder. 
  
 ARTICLE III 
  
 PAYMENTS ON COLLATERAL 
  
 SECTION 3.1 Payments

  
 So long as the Purchase Contract Agent is the registered owner
of the Pledged Notes, Pledged Treasury Consideration or Pledged Treasury Securities, it shall receive all payments thereon. If the Pledged Notes are reregistered such that the Collateral Agent becomes the registered holder, all payments of the
principal of, or interest on, the Pledged Notes and all payments of the principal of, or cash distributions on, any Pledged Treasury Consideration or Pledged Treasury Securities, that are received by the Collateral Agent and that are properly
payable hereunder shall be paid by the Collateral Agent by wire transfer in same day funds: 
  

	 	(i)	in the case of (A) quarterly cash distributions on Normal Units which include Pledged Notes or Pledged Treasury Consideration, as the case may be, and (B) any payments with respect
to any Notes or Treasury Consideration, as the case may be, that have been released from the Pledge pursuant to Section 4.3 hereof, to the Purchase Contract Agent, for the benefit of the relevant Holders of the Normal Units, to the account
designated by the Purchase Contract Agent for such purpose no later than 11:00 a.m., New York City time, on the Business Day such payment is received by the Collateral Agent (provided that in the event such payment or payment instructions are
received by the Collateral Agent on a day that is not a Business Day or after 9:00 a.m., New York City time, on a Business Day, then such payment shall be made no later than 9:30 a.m., New York City time, on the next succeeding Business Day);


  

	 	(ii)	 in the case of any payments with respect to any Treasury Securities that have been released from the Pledge pursuant to Section 4.3 hereof to the Holders of the
Stripped Units, to the accounts and in such amounts 



  

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designated by the Purchase Contract Agent in writing for such purpose no later than 2:00 p.m., New York City time, on the Business Day such payment is
received by the Collateral Agent (provided that in the event such payment or payment instructions are received by the Collateral Agent on a day that is not a Business Day or after 10:00 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); any payment to be made directly to the Holders of such Stripped Units shall be subject to applicable federal withholding law, including the
requirement that a Holder shall have provided to the Collateral Agent its certified taxpayer identification number by furnishing appropriate Forms W-9 (or such other forms as shall be applicable); and 


  

	 	(iii)	in the case of payments in respect of any Pledged Notes, Pledged Treasury Consideration or Pledged Treasury Securities, as the case may be, to be paid upon settlement of such
Holder’s obligations to purchase shares of Common Stock under the Purchase Contract, to the Company on the Stock Purchase Date in accordance with the procedure set forth in Section 4.5(a) or 4.5(b) hereof, in full satisfaction of the respective
obligations of the Holders under the related Purchase Contracts. 

  
 SECTION 3.2 Application of Payments 
  
 All payments received by the Purchase Contract Agent as provided herein shall be applied by the Purchase Contract Agent pursuant to the provisions of the Purchase Contract Agreement. If, notwithstanding the foregoing, the Purchase Contract
Agent shall receive any payments of principal on account of any Notes or Treasury Consideration, as applicable, that, at the time of such payment, are Pledged Notes or Pledged Treasury Consideration, as the case may be (other than payments to which
it is entitled pursuant to the terms of the Purchase Contract Agreement), or a Holder of a Stripped Unit shall receive any payments of principal on account of any Treasury Securities that, at the time of such payment, are Pledged Treasury Securities
(other than payments to which it is entitled pursuant to the terms of the Purchase Contract 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 promptly
deliver the same over to the Company) for application to the obligations of the Holders under the related Purchase Contracts, and the Holders shall acquire no right, title or interest in any such payments of principal so received. 
  

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 ARTICLE IV 
  
 SUBSTITUTION, RELEASE, REPLEDGE AND SETTLEMENT OF NOTES 
  
 SECTION 4.1 Collateral Substitution and the Creation of Stripped Units 
  
 At any time on or prior to the seventh Business Day immediately preceding the Stock Purchase Date, a Holder of Normal Units
shall have the right to substitute Treasury Securities for the Pledged Notes or Pledged Treasury Consideration, as the case may be, securing such Holder’s obligations under the Purchase Contracts comprising a part of such Normal Units, in
integral multiples of 40 Normal Units, or after a successful remarketing of the Notes pursuant to the Purchase Contract Agreement or a Special Event Redemption, in integral multiples of Normal Units so that Treasury Securities to be deposited and
the applicable Treasury Consideration, as the case may be, to be released are in integral multiples of $1,000, by (a) Transferring to the Collateral Agent Treasury Securities having an aggregate principal amount equal to the aggregate Stated Amount
of such Normal Units and (b) delivering such Normal Units to the Purchase Contract Agent, accompanied by a notice, substantially in the form of Exhibit B hereto, to the Purchase Contract Agent stating that such Holder has Transferred Treasury
Securities to the Collateral Agent pursuant to clause (a) above (stating the principal amount, the maturities and the CUSIP numbers of the Treasury Securities Transferred by such Holder) and requesting that the Purchase Contract Agent instruct the
Collateral Agent to release from the Pledge the Pledged Notes or Pledged Treasury Consideration related to such Normal Units, whereupon the Purchase Contract Agent shall promptly give such instruction to the Collateral Agent in the form provided in
Exhibit A; provided that such Holder may not substitute such Treasury Securities for such Pledged Notes or Pledged Treasury Consideration pursuant to this Section 4.1 during the period beginning on the fourth Business Day prior to the first
day of the first or second Remarketing Period and ending on the third Business Day after the end of such Remarketing Period. Upon receipt of Treasury Securities from a Holder of Normal Units and the related instruction from the Purchase Contract
Agent, the Collateral Agent shall release the Pledged Notes or Pledged Treasury Consideration and shall promptly Transfer such Pledged Notes or Pledged Treasury Consideration free and clear of any lien, pledge or security interest created hereby, to
the Purchase Contract Agent. All items Transferred and/or substituted by any Holder pursuant to this Section 4.1, Section 4.2 or any other Section of this Agreement shall be Transferred and/or substituted free and clear of all liens, claims and
encumbrances. 
  
 SECTION 4.2 Collateral Substitution and the
Re-Creation of Normal Units 
  
 At any time on or prior to the
seventh Business Day immediately preceding the Stock Purchase Date, a Holder of Stripped Units shall have the right to reestablish Normal Units (a) consisting of the Purchase Contracts and Notes in integral multiples of 40 Normal Units, or (b) after
a successful remarketing of the Notes pursuant to the Purchase Contract Agreement or a Special Event Redemption, consisting of the Purchase 

  

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Contracts and the appropriate Treasury Consideration (identified and calculated by reference to the Treasury Consideration then comprising Normal Units) or
the appropriate portion of the Treasury Portfolio in integral multiples of Stripped Units so that the Treasury Consideration to be deposited and the Treasury Securities to be released are in integral multiples of $1,000, by (x) Transferring to the
Collateral Agent Notes or the appropriate Treasury Consideration, as the case may be, then comprising such number of Normal Units as is equal to such Stripped Units and (y) delivering such Stripped Units to the Purchase Contract Agent, accompanied
by a notice, substantially in the form of Exhibit B hereto, to the Purchase Contract Agent stating that such Holder has transferred Notes or Treasury Consideration to the Collateral Agent pursuant to clause (a) above and requesting that the Purchase
Contract Agent instruct the Collateral Agent to release from the Pledge the Pledged Treasury Securities related to such Stripped Units, whereupon the Purchase Contract Agent shall give such instruction to the Collateral Agent in the form provided in
Exhibit A; provided that such Holder may not substitute such Notes or Treasury Consideration for such Pledged Treasury Securities pursuant to this Section 4.2 during the period beginning on the fourth Business Day prior to the first day of
the first or second Remarketing Period and ending on the third Business Day after the end of such Remarketing Period. Upon receipt of the Notes or the appropriate Treasury Consideration, as the case may be, from such Holder and the instruction from
the Purchase Contract Agent, the Collateral Agent shall release the Pledged Treasury Securities and shall promptly Transfer such Treasury Securities, free and clear of any lien, pledge or security interest created hereby, to the Purchase Contract
Agent. 
  
 SECTION 4.3 Termination Event 
  
 (a) Upon receipt by the Collateral Agent of written notice from the Company
or the Purchase Contract Agent that there has occurred a Termination Event and identifying the nature of the Termination Event, the Collateral Agent shall release all Collateral from the Pledge and shall promptly Transfer any Pledged Notes or
Pledged Treasury Consideration, as the case may be, and Pledged Treasury Securities to the Purchase Contract Agent for the benefit of the Holders of the Normal Units and the Stripped Units, respectively, free and clear of any lien, pledge or
security interest or other interest created in favor of the Collateral Agent hereby. 
  
 (b) If such Termination Event shall result from the Company’s becoming a debtor under the Bankruptcy Code, and if the Collateral Agent shall advise the Purchase Contract Agent in writing that the Collateral Agent
shall for any reason be prohibited from promptly effectuating the release and Transfer of all Pledged Notes, Pledged Treasury Consideration or Pledged Treasury Securities, as the case may be, as provided by this Section 4.3, the Purchase Contract
Agent shall: 
  

	 	(i)	 use its best efforts to obtain an opinion of a nationally recognized law firm reasonably acceptable to the Collateral Agent to the effect that, as a result of the
Company’s being the debtor in such a bankruptcy case, the Collateral Agent will not be prohibited from releasing or Transferring the 



  

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Collateral as provided in this Section 4.3, and shall deliver such opinion to the Collateral Agent within ten days after the receipt of such written notice
from the Collateral Agent, and if (y) the Purchase Contract Agent shall be unable to obtain such opinion within ten days after the occurrence of such Termination Event or (z) the Collateral Agent shall continue, after delivery of such opinion, to
refuse to effectuate the release and Transfer of all Pledged Notes, Pledged Treasury Consideration or Pledged Treasury Securities, as the case may be, as provided in this Section 4.3, then the Purchase Contract Agent shall within fifteen days after
the receipt of such written notice from the Collateral Agent commence an action or proceeding in the court with 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 Notes, Pledged Treasury Consideration or Pledged Treasury Securities, as the case may be, as provided by this Section 4.3 or 


  

	 	(ii)	commence an action or proceeding like that described in subsection (i) hereof within ten days after the receipt of such written notice from the Collateral Agent.


  
 SECTION 4.4 Early Settlement; Merger Early
Settlement; Cash Settlement 
  
 Upon written notice to the
Collateral Agent by the Purchase Contract Agent that one or more Holders of Units have elected to effect Early Settlement, Merger Early Settlement or Cash Settlement of their respective obligations under the Purchase Contracts forming a part of such
Units in accordance with the terms of the Purchase Contracts and the Purchase Contract Agreement (setting forth the number of such Purchase Contracts as to which such Holders have elected to effect Early Settlement, Merger Early Settlement or Cash
Settlement), and that the Purchase Contract Agent has received from such Holders, and paid to the Company as confirmed by written notice to the Collateral Agent by the Company, the related Early Settlement Amounts, Merger Early Settlement Amounts or
Cash Settlement Amounts, as the case may be, pursuant to the terms of the Purchase Contracts and the Purchase Contract Agreement and that all conditions to such Early Settlement, Merger Early Settlement or Cash Settlement, as the case may be, have
been satisfied, then the Collateral Agent shall release from the Pledge (a) Pledged Notes or Pledged Treasury Consideration, as the case may be, in the case of a Holder of Normal Units or (b) Pledged Treasury Securities, in the case of a Holder of
Stripped Units, identified by the Purchase Contract Agent as relating to such Purchase Contracts as to which such Holders have elected to effect Early Settlement, Merger Early Settlement or Cash Settlement, and shall Transfer all such Pledged Notes,
Pledged Treasury Consideration or Pledged Treasury Securities, as the case may be, free and clear of any lien, pledge or security interest created hereby, to the Purchase Contract Agent for the benefit of the Holders. 
  

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 SECTION 4.5 Remarketing; Application of Proceeds; Settlement 
  
 (a) Pursuant to the Purchase Contract Agreement, the Purchase Contract Agent
shall notify, by 10:00 a.m., New York City time, on the third Business Day preceding the first day of any Remarketing Period, the Remarketing Agent and the Collateral Agent of the aggregate principal amount of Notes comprising part of Normal Units
to be remarketed. The Collateral Agent shall, by 10:00 a.m., New York City time, on the Business Day immediately preceding the first day of any Remarketing Period, without any instruction from Holders of Normal Units, deliver (i) the Pledged Notes
to be remarketed to the Remarketing Agent for remarketing and (ii) the remaining Pledged Notes to the Purchase Contract Agent for distribution to the Holders that have elected not to participate in the remarketing in accordance with the Purchase
Contract Agreement. The Remarketing Agent will agree pursuant to the Remarketing Agreement to deliver the Agent-purchased Treasury Consideration purchased from the proceeds of a successful remarketing to the Purchase Contract Agent, which shall
thereupon deliver such Agent-purchased Treasury Consideration to the Collateral Agent. Upon receipt of the Agent-purchased Treasury Consideration from the Purchase Contract Agent following a successful remarketing, the Collateral Agent, for the
benefit of the Company, shall thereupon hold such Agent-purchased Treasury Consideration to secure such Holders’ obligations under the Purchase Contracts. On the Stock Purchase Date, the Collateral Agent shall apply that portion of the payments
received in respect of the Pledged Treasury Consideration equal to the aggregate Stated Amount of the related Normal Units to satisfy in full the obligations of such Holders of Normal Units to pay the Purchase Price under the related Purchase
Contracts. The remaining portion of such Proceeds, if any, shall be distributed by the Collateral Agent to the Purchase Contract Agent for payment to each Holder of a Normal Unit a cash payment in an amount equal to 1/40, or 2.5%, of a quarterly
interest payment on the $1,000 principal amount of a Senior Note at the initial annual rate of 5.085%. 
  
 (b) Promptly following a Failed Remarketing, the Notes delivered to the Remarketing Agent and the Purchase Contract Agent pursuant to Section 4.5(a) shall
be returned to the Collateral Agent, together with written notice from the Remarketing Agent of the Failed Remarketing. The Collateral Agent, for the benefit of the Company, shall thereupon hold such Notes to secure the obligations of Holders of
Normal Units under the Purchase Contracts. The Remarketing Agent shall agree to make one or more attempts to remarket the Notes in accordance with the procedures set forth in the Purchase Contract Agreement and the Remarketing Agreement between the
Remarketing Date and the Stock Purchase Date, provided that the requirements of Section 5.4(b)(ii) of the Purchase Contract Agreement have been met. If by 4:00 p.m., New York City time, on the third Business Day immediately preceding the
Stock Purchase Date the Remarketing Agent has failed to remarket the Notes at a price equal to at least 100.25% of the Remarketing Value (or, if the Remarketing Agent is unable to remarket the Notes at such a price, at a price below 100.25% in the
discretion of the Remarketing Agent, but in no event less than 100.00% of the Remarketing Value), the “Last Failed Remarketing” shall be deemed to have occurred. In this case, the Remarketing Agent will agree to 

  

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advise the Collateral Agent in writing that it cannot remarket the related Pledged Notes of such Holders of Normal Units and the Remarketing Agent will agree
pursuant to the Remarketing Agreement to promptly return to the Collateral Agent the Notes delivered to it pursuant to Section 4.5(a). The Collateral Agent, for the benefit of the Company will, at the written direction of the Company, deliver or
dispose of the Pledged Notes in accordance with the Company’s written instructions to satisfy in full, from any such disposition or retention, such Holders’ obligations to pay the Purchase Price for the Common Stock; provided that
if upon a Failed Remarketing or the Last Failed Remarketing, as the case may be, the Collateral Agent delivers or disposes of the Pledged Notes in accordance with the written instructions of the Company, any accrued and unpaid interest on such Notes
will become payable by the Company to the Purchase Contract Agent for payment to the Holder of the Normal Units to which such Notes relate in accordance with the Purchase Contract Agreement. 
  
 (c) In the event a Holder of Stripped Units has not made an Early Settlement
or Merger Early Settlement of the Purchase Contracts underlying its Stripped Units, such Holder shall be deemed to have elected to pay for the shares of Common Stock to be issued under such Purchase Contracts from the payments received in respect of
the related Pledged Treasury Securities. Without receiving any instruction from any such Holder of Stripped Units, the Collateral Agent shall apply such payments to the settlement of such Purchase Contracts on the Stock Purchase Date pursuant to
written instructions from the Purchase Contract Agent. In the event the payments received in respect of the related Pledged Treasury Securities are in excess of the aggregate Purchase Price of the Purchase Contracts being settled thereby, the
Collateral Agent shall distribute such excess, when received, to the Purchase Contract Agent for payment to such Holders of Stripped Units. 
  
 (d) Pursuant to the Remarketing Agreement and Purchase Contract Agreement, on or prior to the fourth Business Day preceding the first day of any
Remarketing Period, but no earlier than the Payment Date immediately preceding the first day of such Remarketing Period, holders of Separate Notes may elect to have their Separate Notes remarketed by delivering their Separate Notes, together with a
notice of such election, substantially in the form of Exhibit C hereto, to the Custodial Agent. On the third Business Day prior to the first day of any Remarketing Period, by 10:00 a.m., New York City time, the Custodial Agent shall notify the
Remarketing Agent of the principal amount of such Separate Notes to be remarketed. The Custodial Agent will hold such Separate Notes in an account separate from the Collateral Account. A holder of Separate Notes electing to have its Separate Notes
remarketed will also have the right to withdraw such election by written notice to the Custodial Agent, substantially in the form of Exhibit D hereto, on or prior to the fourth Business Day immediately preceding the first day of any Remarketing
Period, upon which notice the Custodial Agent will return such Separate Notes to such holder. On the Business Day immediately preceding the first day of any Remarketing Period, the Custodial Agent will deliver to the Remarketing Agent for
remarketing all Separate Notes delivered to the Custodial Agent pursuant to this Section 4.5(d) and not withdrawn pursuant to the terms hereof prior to 

  

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such date. The portion of the proceeds from such remarketing equal to the amount calculated in respect of such Separate Notes as set forth in Section 5.4(b)
of the Purchase Contract Agreement will automatically be remitted by the Remarketing Agent to the Custodial Agent for the benefit of the holders of such Separate Notes. In addition, after deducting as the remarketing fee an amount not exceeding 25
basis points (0.25%) of the Remarketing Value, the Remarketing Agent will remit to the Custodial Agent the remaining portion of the proceeds, if any, for payment to such holders. If, despite using commercially reasonable best efforts, the
Remarketing Agent advises the Custodial Agent in writing that there has been a Failed Remarketing, the Remarketing Agent will promptly return such Notes to the Custodial Agent for redelivery to the holders of such Separate Notes. For purposes of
this Section 4.5(d), a “holder” of Separate Notes shall mean the Person in whose name such Separate Notes is registered on the books of the registrar for the Notes. 
  
 (e) The Collateral Agent, Custodial Agent and Securities Intermediary each covenant and agree that any Collateral, if and
for so long as it is a Restricted Security, may not be sold or otherwise transferred in the absence of an effective registration statement under the Securities Act or an applicable exemption from the registration requirements under the Securities
Act. Each of the Collateral Agent, Custodial Agent and Securities Intermediary further covenant and agree that any such Pledged Note that is a Restricted Security may not be sold or otherwise transferred pursuant to Rule 144A under the Securities
Act. 
  
 ARTICLE V 
  
 VOTING RIGHTS — NOTES 
  
 SECTION 5.1 Exercise by Purchase Contract Agent 
  
 The Purchase Contract Agent may exercise, or refrain from exercising, any and
all voting and other consensual rights pertaining to the Pledged Notes or any part thereof for any purpose not inconsistent with the terms of this Agreement and in accordance with the terms of the Purchase Contract Agreement; provided that
the Purchase Contract Agent shall not exercise or, as the case may be, shall not refrain from exercising such right if, in the judgment of the Company, such action would impair or otherwise have a material adverse effect on the value of all or any
of the Pledged Notes; and provided, further, that the Purchase Contract Agent shall give the Company and the Collateral Agent at least five Business Days’ prior written notice of the manner in which it intends to exercise, or its
reasons for refraining from exercising, any such right. Upon receipt of any notices and other communications in respect of any Pledged Notes, including notice of any meeting at which holders of Notes are entitled to vote or solicitation of consents,
waivers or proxies of holders of 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 

  

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Contract Agent, execute and deliver to the Purchase Contract Agent such proxies and other instruments in respect of such Pledged Notes (in form and substance
satisfactory to the Collateral Agent) as are prepared by the Purchase Contract Agent with respect to the Pledged Notes. 
  
 ARTICLE VI 
  
 RIGHTS AND REMEDIES; SPECIAL EVENT REDEMPTION 
  
 SECTION 6.1 Rights and Remedies of the Collateral Agent 
  
 (a) In addition to the rights and remedies available at law or in equity, after an event of default under the Purchase Contracts, the Collateral Agent
shall have all of the rights and remedies with respect to the Collateral of a secured party under the Uniform Commercial Code (or any successor thereto) as in effect in the State of New York from time to time (the “Code”) (whether or not
the Code 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 hereunder may be asserted. Wherever reference is made in this Agreement to any section of the Code, such reference shall be deemed to include a reference to any provision of the Code which is a successor to, or amendment of, such
section. Without limiting the generality of the foregoing, such remedies may include, to the extent permitted by applicable law, (i) retention of the Pledged Notes or other Collateral in full satisfaction of the Holders’ obligations under the
Purchase Contracts or (ii) sale of the Pledged Notes or other Collateral in one or more public or private sales or otherwise at the written direction of the Company; provided, however, that in the event the Collateral is comprised of
securities that are restricted securities under Rule 144 under the Securities Act, any such transaction shall be either pursuant to an effective registration statement under the Securities Act or an exemption from such registration. 
  
 (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 on account of any Pledged Treasury Consideration or Pledged Treasury Securities as provided in Article III hereof in satisfaction of the obligations
of the Holder of the Units of which such Pledged Treasury Consideration or Pledged Treasury Securities, as applicable, is a part under the related Purchase Contracts, the inability to make such payments shall constitute an event of default under the
Purchase Contracts and the Collateral Agent shall have and may exercise, with reference to such Pledged Treasury Securities or such Pledged Treasury Consideration, as applicable, and such obligations of such Holder, any and all of the rights and
remedies available to a secured party under the Code and the TRADES Regulations after default by a debtor, and as otherwise granted herein or under any other law. 
  

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 (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 and collect all payments of (i) the principal amount of, or interest on, the Pledged Notes, or (ii) the principal amount of the Pledged Treasury Consideration or Pledged Treasury
Securities, subject, in each case, to the provisions of Article III, and as otherwise granted herein. 
  
 (d) The Purchase Contract Agent, individually and as attorney-in-fact for each Holder of Units, agrees that, from time to time, upon the written request
of the Company or the Collateral Agent (acting upon the written request of the Company), the Purchase Contract Agent or such Holder shall execute and deliver such further documents and do such other acts and things as may be necessary, including as
the Company or the Collateral Agent (acting upon the written request of the Company) 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 Company or the Collateral Agent (acting upon the written request of the Company) hereunder, except for liability for
its own negligent act, its own negligent failure to act, its own bad faith or its own willful misconduct. 
  
 SECTION 6.2 Substitutions 
  
 Whenever a Holder has the right to substitute Treasury Securities, Notes, or Treasury Consideration, as the case may be, for Collateral held by the
Collateral Agent, such substitution shall not constitute a novation of the security interest created hereby. 
  
 SECTION 6.3 Special Event Redemption 
  
 Upon the occurrence of a Special Event Redemption prior to the Stock Purchase Date or the earlier successful remarketing of the Notes pursuant to Section
5.4 of the Purchase Contract Agreement and the receipt of the Redemption Price of the Pledged Notes by the Collateral Agent, the Collateral Agent will, at the written direction of the Company, apply the Redemption Price to purchase on behalf of the
Holders of Normal Units the Special Event Redemption Treasury Consideration. The Collateral Agent shall transfer the Special Event Redemption Treasury Consideration to the Collateral Account to secure the obligation of all Holders of Normal Units to
purchase shares of Common Stock of the Company under the Purchase Contracts constituting a part of such Normal Units, in substitution for the Pledged Notes. Thereafter, the Collateral Agent shall have such security interests, rights and obligations
with respect to the Special Event Redemption Treasury Consideration as it had in respect of the Pledged Notes as provided in Articles II, III, IV, V and VI, and any reference herein to the Notes shall be deemed to be reference to such Special Event
Redemption Treasury Consideration, and any reference herein to interest on the Notes shall be deemed to be a reference to corresponding distributions on such Special Event Redemption Treasury Consideration. 

  

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Upon the occurrence of a Special Event Redemption, the Collateral Agent shall be authorized to surrender the Notes in accordance with the provisions of the
Indenture. 
  
 ARTICLE VII 
  
 REPRESENTATIONS AND WARRANTIES; COVENANTS 
  
 SECTION 7.1 Representations and Warranties of the Holders 
  
 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 representation or warranty made by or on behalf of a Holder), hereby represent and warrant to the Collateral Agent, 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; 
  
 (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, 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 Section 2.1; 
  
 (c) upon the Transfer of the Collateral 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 Intermediary or other entity not within the control of the Holder involved in the Transfer of the Collateral, including the Collateral Agent, 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 Section 2.2); 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 Section 2.1 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 7.2 Representations, Warranties and Covenants of the Collateral Agent, Custodial Agent and Securities Intermediary 
  
 The Collateral Agent, Custodial Agent and Securities Intermediary (each an “Agent”) hereby represents, warrants and covenants: 
  
 (a) The Collateral Agent, Custodial Agent and Securities Intermediary is a
trust company duly incorporated and validly existing under the laws of the State of Illinois; 
  

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 (b) The execution, delivery and performance by the Collateral Agent, the Custodial Agent and the
Securities Intermediary of this Agreement have each been duly authorized by all necessary corporate action on the part of each such Agent; this Agreement has been duly executed and delivered by the Collateral Agent, the Custodial Agent and the
Securities Intermediary and constitutes a valid and legally binding obligation of each of the Agents, enforceable against such Agents in accordance with its terms, subject, as to enforcement, to bankruptcy, insolvency, reorganization and other laws
of general applicability relating to or affecting creditors’ rights and to general equity principles; 
  
 (c) The execution, delivery and performance by the Collateral Agent, the Custodial Agent and the Securities Intermediary of this Agreement do not violate
or constitute a breach of the Articles of Incorporation or By-Laws of any of such Agents; 
  
 (d) No consent of any federal or state banking authority having regulatory authority over the Agents in their individual capacity is required for the execution and delivery of, or performance by the Agents of their
respective obligations under, this Agreement; and 
  
 (e) The
Collateral Agent, Custodial Agent and Securities Intermediary each covenant and agree that any Collateral, if and for so long as it is a Restricted Security, may not be sold or otherwise transferred in the absence of an effective registration
statement under the Securities Act or an applicable exemption from the registration requirements under the Securities Act. Each of the Collateral Agent, Custodial Agent and Securities Intermediary further covenant and agree that any Pledged Note
that is a Restricted Security may not be sold or otherwise transferred pursuant to Rule 144A under the Securities Act. 
  
 SECTION 7.3 Covenants 
  
 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 

  

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beneficial interest therein, subject to the pledge hereunder, transferred in connection with the Transfer of the Units. 
  
 ARTICLE VIII 
  
 THE COLLATERAL AGENT 
  
 SECTION 8.1 Appointment, Powers and Immunities 
  
 (a) The Collateral Agent shall act as agent for the Company hereunder with such powers as are specifically vested in the Collateral Agent by the terms of
this Agreement, together with such other powers as are reasonably incidental thereto. Each of the Collateral Agent, the Custodial Agent and the Securities Intermediary: 
  

	 	(i)	shall 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 any
of them, nor shall any of them be bound by the provisions of any agreement by any party hereto beyond the specific terms hereof; 

  

	 	(ii)	shall 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 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 Units 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 the Securities Intermediary, as the case may be) to perform any
of its obligations hereunder or thereunder or, except as expressly required hereby, for the existence, validity, perfection, priority or maintenance of any security interest created hereunder; 

  

	 	(iii)	shall not be required to initiate or conduct any litigation or collection proceedings hereunder (except in the case of the Collateral Agent, pursuant to directions furnished under
Section 8.2, subject to Section 8.6); 

  

	 	(iv)	shall 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 negligence, bad faith or willful misconduct; and 

  

	 	(v)	shall not be required to advise any party as to selling or retaining, or taking or refraining from taking any action with respect to, the Units or other property deposited
hereunder. 

  

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 Subject to the foregoing, during the term of this Agreement, each of the Collateral Agent, the Custodial Agent and the
Securities Intermediary, in connection with the safekeeping and preservation of the Collateral hereunder, shall use the same standard of care it applies for similar property held for its own account. 
  
 (b) 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. Notwithstanding the foregoing, the Collateral Agent, the Custodial Agent, the Purchase Contract Agent and Securities Intermediary, each in its individual
capacity, hereby waive any right of set-off, banker’s lien, liens or perfection rights as securities intermediary or any counterclaim with respect to any of the Collateral. 
  
 (c) The Collateral Agent, Custodial Agent and Securities Intermediary shall have no liability whatsoever for the action or
inaction of any Clearing Agency or any book-entry system thereof. In no event shall any Clearing Agency or any book-entry system thereof be deemed an agent or subcustodian of the Collateral Agent, Custodial Agent and Securities Intermediary.

  
 SECTION 8.2 Instructions of the Company 
  
 The Company shall have the right, by one or more instruments in writing
executed and delivered to the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, to direct the time, method and place of conducting any proceeding for the realization of any right or remedy available to the
Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, or of exercising any power conferred on the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, or to direct the taking
or refraining from taking of any action authorized by this Agreement; provided that (i) such direction shall not conflict with the provisions of any law or of this Agreement and (ii) the Collateral Agent, the Custodial Agent and the
Securities Intermediary shall each receive indemnity reasonably satisfactory to it as provided herein. Nothing in this Section 8.2 shall impair the right of each of the Collateral Agent, the Custodial Agent or the Securities Intermediary 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. 
  
 SECTION 8.3 Reliance 
  
 Each of the Securities Intermediary, the Custodial Agent and the Collateral Agent shall be entitled conclusively to rely upon any certification, order,
judgment, instructions, opinion, notice or other communication (including, without limitation, any thereof by telephone or facsimile) reasonably believed by it to be genuine and correct and to have been signed or sent by or on behalf of the proper
Person or Persons (without being 

  

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required to determine the correctness of any fact stated therein), and upon advice 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 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 8.4 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 Holder of Units and any holder of Separate Notes (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 and the Securities Intermediary and their affiliates
may accept fees and other consideration from the Purchase Contract Agent, any Holder of Units or any holder of Separate Notes 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 waives any right of set-off or banker’s lien with respect to) 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 and the Collateral shall not be commingled with any other assets of any such
Person. 
  
 SECTION 8.5 Non-Reliance on Collateral Agent

  
 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 Units of this Agreement, the Purchase Contract Agreement, the 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 Units. The Collateral Agent, the Custodial Agent and the Securities Intermediary shall not have any duty or responsibility to
provide the Company or the Remarketing Agent with any credit or other information concerning the affairs, financial condition or business of the Purchase Contract Agent, any Holder of Units or any holder of Separate Notes (or any of their respective
subsidiaries or 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 8.6 Compensation and Indemnity 
  
 The Company agrees: 
  
 (a) to pay each of 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, Custodial Agent or the Securities Intermediary, as the case may be, for all services rendered by each of them hereunder; and 
  

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 (b) to indemnify the Collateral Agent, the Custodial Agent and the Securities Intermediary for, and to
hold each of them harmless from and against, any loss, liability or reasonable out-of-pocket expense incurred without negligence, willful misconduct or bad faith on its part, arising out of or in connection with the acceptance or administration of
its powers and duties under this Agreement, including the reasonable out-of-pocket costs and expenses (including reasonable fees and expenses of counsel) of defending itself against any claim or liability in connection with the exercise or
performance of such powers and duties or collecting such amounts. The Collateral Agent, the Custodial Agent and the Securities Intermediary shall each promptly notify the Company of any third party claim which may give rise to the indemnity
hereunder and give the Company the opportunity to control the defense of such claim with counsel reasonably satisfactory to the indemnified party, provided no conflict of interest exists, and if the Company so elects to assume such defense, the
Company shall in good faith defend the Collateral Agent, the Custodial Agent or the Securities Intermediary (in which case all attorney’s fees and expenses shall be borne by the Company). No compromise or settlement of any claims may be
effected by any party without the other parties’ consent unless (i) there is no finding or omission of any violation of law and no effect on any other claims that may be made against any of such other parties and (ii) the sole relief provided
is monetary damages that are paid in full by the party seeking the compromise or settlement. 
  
 SECTION 8.7 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, the Collateral Agent, Custodial
Agent and the Securities Intermediary shall be entitled, after prompt notice to the Company and the Purchase Contract Agent, at its sole option, 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 neither the Collateral Agent, Custodial Agent nor the Securities Intermediary shall 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, Custodial Agent and the Securities Intermediary shall be entitled to refuse to act until either (i) 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, reasonably satisfactory to the Collateral Agent, Custodial Agent or the Securities Intermediary, as the case may be,
or (ii) the Collateral Agent, the Custodial Agent or the Securities Intermediary, as the case may be, shall have received security or an indemnity reasonably satisfactory to the Collateral Agent, Custodial Agent or the Securities Intermediary, as
the case may be, sufficient to save the Collateral Agent, Custodial Agent or the Securities 

  

 -23- 








 
Intermediary, as the case may be, harmless from and against any and all loss, liability or reasonable out-of-pocket expense which the Collateral Agent,
Custodial Agent or the Securities Intermediary, as the case may be, may incur by reason of its acting without bad faith, willful misconduct or negligence. The Collateral Agent, Custodial Agent or the Securities Intermediary may in addition elect to
commence an interpleader action or seek other judicial relief or orders as the Collateral Agent, Custodial Agent or the Securities Intermediary, as the case may be, may deem necessary. Notwithstanding anything contained herein to the contrary,
neither the Collateral Agent, Custodial Agent nor the Securities Intermediary shall be required to take any action that is in its reasonable opinion contrary to law or to the terms of this Agreement, or which would in its reasonable opinion subject
it or any of its officers, employees or directors to liability. 
  
 SECTION 8.8 Resignation 
  
 Subject to the appointment
and acceptance of a successor Collateral Agent, Custodial Agent or Securities Intermediary, as provided below, (a) the Collateral Agent, 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 Units, (b) the Collateral Agent, Custodial Agent or the Securities Intermediary may be removed at any time by the Company by notice to the Purchase Contract Agent and the
Collateral Agent, the Custodial Agent and the Securities Intermediary and (c) if the Collateral Agent, 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, Custodial Agent or the Securities Intermediary may be removed by the Purchase Contract
Agent. 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 (c) of the immediately preceding sentence. 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. If no successor Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be,
shall have been so appointed and shall have accepted such appointment within 30 days after any notice of such resignation or such removal, then the retiring Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, may at the
Company’s expense petition any court of competent jurisdiction for the appointment of a successor Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be. Upon removal of the Collateral Agent, Custodial Agent or
Securities Intermediary, no fees paid to the retiring Collateral Agent, Custodial Agent or Securities Intermediary pursuant to Section 8.6(a) of this Agreement shall be refunded. Each successor Collateral Agent, Custodial Agent and the Securities
Intermediary shall be a bank which has an office or agency in New York, New York 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, as
the case may be, hereunder by a successor Collateral Agent, Custodial Agent or Securities Intermediary, as the case may be, such successor shall thereupon succeed to and become 

  

 -24- 








 
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 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 Section 8.8 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, Custodial Agent or Securities Intermediary. Any resignation or removal of the Collateral Agent hereunder shall be deemed for all purposes of this Agreement
as the simultaneous resignation or removal of the Custodial Agent and the Securities Intermediary hereunder. 
  
 Any corporation into which the Collateral Agent, the Custodial Agent or the Securities Intermediary, in its individual capacity, 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 in its individual capacity shall be a party, or any corporation to which substantially all the
corporate trust business of the Collateral Agent in its individual capacity may be transferred, shall be the Collateral Agent, the Custodial Agent, or the Securities Intermediary, as the case may be, respectively, under this Agreement without
further act. 
  
 SECTION 8.9 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
(other than legal counsel) pursuant to this Section 8.9 shall be subject to prior consent of the Company. 
  
 SECTION 8.10 Survival 
  
 The provisions of this Article VIII shall survive termination of this Agreement and the resignation or removal of the Collateral Agent, the Custodial
Agent or the Securities Intermediary. 
  
 SECTION 8.11 Exculpation

  
 Anything in this Agreement to the contrary notwithstanding, in
no event shall any of the Collateral Agent, the Custodial Agent or the Securities Intermediary or their officers, employees or agents be liable under this Agreement to any third party for indirect, special, punitive or consequential loss or damage
of any kind whatsoever, including lost profits or loss of business, relating to, arising from or in connection with this Agreement, whether or not the likelihood of such loss or damage was known to the 

  

 -25- 








 
Collateral Agent, the Custodial Agent or the Securities Intermediary, or any of them, incurred without any act or deed that is found to be attributable to
negligence, bad faith or willful misconduct on the part of the Collateral Agent, the Custodial Agent or the Securities Intermediary. 
  
 ARTICLE IX 
  
 AMENDMENT 
  
 SECTION 9.1 Amendment Without Consent of Holders 
  
 Without the consent of any Holders or the holders of any Separate Notes, the Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, at any time and from time to time, may amend this
Agreement, in form satisfactory to the Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, for any of the following purposes: 
  

	 	(i)	to evidence the succession of another Person to the Company, and the assumption by any such successor of the covenants of the Company; or 

  

	 	(ii)	to add to the covenants of the Company for the benefit of the Holders, or to surrender any right or power herein conferred upon the Company so long as such covenants or such
surrender do not adversely affect the validity, perfection or priority of the security interests granted or created hereunder; or 

  

	 	(iii)	to evidence and provide for the acceptance of appointment hereunder by a successor Collateral Agent, Custodial Agent, Securities Intermediary or Purchase Contract Agent; or


  

	 	(iv)	to cure any ambiguity, to correct or supplement any provisions herein which may be inconsistent with any other such provisions herein, or to make any other provisions with respect
to such matters or questions arising under this Agreement, provided such action shall not adversely affect the interests of the Holders. 

  
 SECTION 9.2 Amendment with Consent of Holders 
  
 With the consent of the Holders of not less than a majority of the Purchase Contracts at the time outstanding, by Act of said Holders delivered to the
Company, the Purchase Contract Agent or the Collateral Agent, as the case may be, the Company, when duly authorized, the Purchase Contract Agent, the Collateral Agent, the Custodial Agent and the Securities Intermediary may amend this Agreement for
the purpose of modifying in any manner the provisions of this Agreement or the rights of the Holders in respect of 

  

 -26- 








 
the Units; provided that no such supplemental agreement shall, without the consent of the Holder of each Outstanding Unit adversely affected thereby,

  

	 	(i)	change the amount or type of Collateral underlying a Unit (except for the rights of holders of Normal Units to substitute the Treasury Securities for the Pledged Notes or the
Pledged Treasury Consideration, as the case may be, or the rights of Holders of Stripped Units to substitute Notes or the appropriate Treasury Consideration, as applicable, for the Pledged Treasury Securities), impair the right of the Holder of any
Unit to receive distributions on the underlying Collateral or otherwise adversely affect the Holder’s rights in or to such Collateral; or 

  

	 	(ii)	otherwise effect any action that would require the consent of the Holder of each Outstanding Unit affected thereby pursuant to the Purchase Contract Agreement if such action were
effected by an agreement supplemental thereto; or 

  

	 	(iii)	reduce the percentage of Purchase Contracts the consent of whose Holders is required for any such amendment. 

  
 It shall not be necessary for any Act of Holders under this Section to approve the particular
form of any proposed amendment, but it shall be sufficient if such Act shall approve the substance thereof. 
  
 SECTION 9.3 Execution of Amendments 
  
 In executing any amendment permitted by this Article IX, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract
Agent shall be entitled to receive and (subject to Section 8.1 hereof, with respect to the Collateral Agent, and Section 7.1 of the Purchase Contract Agreement, with respect to the Purchase Contract Agent) shall be fully protected in relying upon,
an Opinion of Counsel stating that the execution of such amendment is authorized or permitted by this Agreement and that all conditions precedent, if any, to the execution and delivery of such amendment have been satisfied and, in the case of an
amendment pursuant to Section 9.1, that such amendment does not adversely affect the validity, perfection or priority of the security interests granted or created hereunder. 
  
 SECTION 9.4 Effect of Amendments 
  
 Upon the execution of any amendment under this Article IX, this Agreement shall be modified in accordance therewith, and such amendment 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 under the Purchase Contract Agreement shall be bound thereby. 
  

 -27- 








 SECTION 9.5 Reference to Amendments 
  
 Certificates authenticated, executed on behalf of the Holders and delivered after the execution of any amendment pursuant to
this Article IX may, and shall if required by the Collateral Agent or the Purchase Contract Agent, bear a notation in form approved by the Purchase Contract Agent as to any matter provided for in such amendment. 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 amendment may be prepared and executed by the Company and authenticated, executed on behalf of the Holders and delivered by the
Purchase Contract Agent in accordance with the Purchase Contract Agreement in exchange for outstanding Certificates. 
  
 ARTICLE X 
  
 MISCELLANEOUS 
  
 SECTION 10.1 No Waiver 
  
 No failure on the part of any party hereto or any of its 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 any party hereto or any of its 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 10.2 Governing Law 
  
 THIS AGREEMENT SHALL BE GOVERNED BY AND CONSTRUED IN ACCORDANCE WITH THE LAWS
OF THE STATE OF NEW YORK. Without limiting the foregoing, the above choice of law is expressly agreed to by the Securities Intermediary, the Collateral Agent, the Custodial Agent and the Holders from time to time acting through the Purchase Contract
Agent, as their attorney-in-fact, in connection with the establishment and maintenance of the Collateral Account, which law, for purposes of the Code, shall be deemed to be the law governing all Security Entitlements related thereto. In addition,
such parties agree that, for purposes of the Code, New York shall be the Securities Intermediary’s jurisdiction. The Company, the Collateral Agent and the Holders from time to time of the 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 the Borough of Manhattan 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 and the Holders from time to time of the 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 

  

 -28- 








 
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 10.3 Notices 
  
 Unless otherwise stated herein, all notices, requests, instructions, 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 personally delivered or, in the case of a mailed notice or notice transmitted by telecopier, upon receipt, in each case given or addressed as aforesaid. 

 
 SECTION 10.4 Successors and Assigns 
  
 This Agreement shall be binding upon and inure to the benefit of the
respective successors and assigns of the Company, the Collateral Agent, the Custodial Agent, the Securities Intermediary and the Purchase Contract Agent, and the Holders from time to time of the 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. 
  
 SECTION 10.5 Counterparts 
  
 This Agreement may be executed in any number of counterparts, all of which taken together shall constitute one and the same instrument, and any of the
parties hereto may execute this Agreement by signing any such counterpart. 
  
 SECTION 10.6 Severability 
  
 If
any provision hereof is invalid and unenforceable in any jurisdiction, then, to the fullest extent permitted by law, (i) the other provisions hereof shall remain in full force and effect in such jurisdiction and shall be liberally construed in order
to carry out the intentions of the parties hereto as nearly as may be possible and (ii) the invalidity or unenforceability of any provision hereof in any jurisdiction shall not affect the validity or enforceability of such provision in any other
jurisdiction. 
  
 SECTION 10.7 Expenses, Etc. 
  
 The Company agrees to reimburse the Collateral Agent, the Securities
Intermediary and the Custodial Agent for: 
  
 (a) all reasonable
out-of-pocket costs and all reasonable 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; 
  

 -29- 








 (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 Units to satisfy its obligations under the
Purchase Contracts forming a part of the Units and (ii) the enforcement of this Section 10.7; and 
  
 (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, if any, incurred in connection with any filing, registration, recording or perfection of any security interest to the extent
contemplated hereby. 
  
 SECTION 10.8 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 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 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.

  

 -30- 








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

			
	 UNUMPROVIDENT CORPORATION

		
	By:	 	 /s/ Susan N. Roth

	 	 	

	 	 	Name: Susan N. Roth
	 	 	Title:   Vice President and Corporate Secretary
	 
	 Address for Notices:

	 
	 UnumProvident Corporation

	 1 Fountain Square

	 Chattanooga, Tennessee 37402




			
	 Attention:
	 	Susan N. Roth, Vice President and
	 	 	Corporate Secretary
	 Telecopy:
	 	(423) 755-2590
	 Telephone:
	 	(423) 755-8913
	 	 	 
	 JPMorgan Chase Bank,
 as Purchase Contract Agent and as attorney-in-fact of the Holders from time to time of the Units




			
		
	By:	 	 /s/ James D. Heaney

	 	 	

	 	 	Name: James D. Heaney
	 	 	Title: Vice President
	
	 Address for Notices:

	
	JPMorgan Chase Bank
	4 New York Plaza, 15th Floor
	New York. New York 10004
	Attention: Institutional Trust Services
	Telecopy: (212) 623-6167
	Telephone: (212) 623-6747


  










			
	 BNY Midwest Trust Company,

	 as Collateral Agent, Custodial Agent

	 and Securities Intermediary

		
	By:	 	 /s/ D.G. Donovan

	 	 	

	 	 	Name: D.G. Donovan
	 	 	Title: Vice President
	 	 	 
	 Address for Notices:

	 
	BNY Midwest Trust Company
	2 N. LaSalle Street
	Suite 1020
	Chicago, Illinois 60602
	Attention: Corporate Trust Administration
	Telecopy: (312) 827-8547
	Telephone: (312) 827-8542


  









 EXHIBIT A 
  

INSTRUCTION FROM PURCHASE CONTRACT 
 AGENT TO COLLATERAL AGENT 
  
 BNY Midwest Trust Company

 2 North LaSalle Street 
 Suite 1020 
 Chicago, Illinois 60602 
  
 Attention: Corporate Trust Administration 
  

			
	 Re:
	  	8.25% Adjustable Conversion-Rate Equity
	 	  	Security Units of UnumProvident Corporation (the “Company”)

  
 We hereby notify you
in accordance with Section [4.1][4.2] of the Pledge Agreement, dated as of May 11, 2004, among the Company, you, as Collateral Agent, Custodial Agent and Securities Intermediary, and us, as Purchase Contract Agent and as attorney-in-fact for the
holders of [Normal Units] [Stripped Units] from time to time, that the holder of securities listed below (the “Holder”) has elected to substitute [$              aggregate
principal amount of Treasury Securities (CUSIP No. [                    ])]
[$             principal amount of Notes or the appropriate Treasury Consideration, as the case may be,] in exchange for the related [Pledged Notes or Pledged Treasury Consideration]
[Pledged Treasury Securities (CUSIP No. [            ]),] held by you in accordance with the Pledge Agreement and has delivered to us a notice stating that the Holder has transferred
[Treasury Securities] [Notes or the appropriate Treasury Consideration] to you, as Collateral Agent. We hereby instruct you, upon receipt of such [Pledged Treasury Securities] [Pledged Notes or Pledged Treasury Consideration], and upon the payment
by such Holder of any applicable fees, to release the [Notes or Treasury Consideration, as the case may be,] [Treasury Securities] related to such [Normal Units] [Stripped Units] to us in accordance with the Holder’s instructions. Capitalized
terms used herein but not defined shall have the meaning set forth in the Purchase Contract Agreement. 
  
 Date:                                  

  

			
	 JPMorgan Chase Bank,

	 
	As Purchase Contract Agent under the Purchase
	Contract Agreement, dated as of May 11, 2004,
	 between the Company and the Purchase Contract
 Agent

		
	By:	 	 
	 	 	

	 	 	Name:
	 	 	Title:


  

 A-1 








 Please print name and address of Registered Holder electing to substitute [Treasury Securities] [Notes or Treasury
Consideration] for the [Pledged Notes or the Pledged Treasury Consideration] [Pledged Treasury Securities]: 
  

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

  

 A-2 








 EXHIBIT B 
  

INSTRUCTION TO PURCHASE CONTRACT AGENT 
  
 JPMorgan Chase Bank, 
     as Purchase Contract Agent

 4 New York Plaza 
 New York, New York 10004 
  
 Attention: Institutional Trust Services 
  

			
	 Re:
	  	8.25% Adjustable Conversion-Rate Equity
	 	  	Security Units of UnumProvident Corporation (the “Company”)

  
 The undersigned Holder
hereby notifies you, as Purchase Contract Agent under the Purchase Contract Agreement, dated as of May 11, 2004, between the Company and you, that it has delivered to BNY Midwest Trust Company, as Collateral Agent, Custodial Agent and Securities
Intermediary [$             aggregate principal amount of Treasury Securities] [$             principal amount of
Notes or the appropriate Treasury Consideration, as the case may be,] in exchange for the related [Pledged Notes or Pledged Treasury Consideration, as the case may be,] [Pledged Treasury Securities] held by the Collateral Agent, in accordance with
Section [4.1] [4.2] of the Pledge Agreement, dated as of May 11, 2004, among you, the Company and the Collateral Agent. The undersigned Holder has paid the Collateral Agent all applicable fees 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 Notes or Pledged Treasury Consideration, as the case may be,] [Pledged Treasury Securities] related to such [Normal Units] [Stripped
Units]. Capitalized terms used herein but not defined shall have the meaning set forth in the Pledge Agreement. 
  
 Date:                      

			
		
	By:	 	 
	 	 	




			
	 Signature Guarantee:
	 	 
	 	 	



  
 Dated: 
  

			
	 Please print name and address of
	 	 
	 Registered Holder:
	 	 
	 	 	 
	 Name:
	 	Social Security or other Taxpayer
	 	 	Identification Number, if any:
	 	 	 
	 Address:
	 	 

  

 B-1 








 EXHIBIT C 
  

INSTRUCTION TO CUSTODIAL AGENT REGARDING REMARKETING 
  
 BNY Midwest Trust Company 
 2 N. LaSalle Street 
 Suite 1020 
 Chicago, Illinois 60602 
  
 Attention: Corporate Trust Administration 
  

			
	 Re:
	  	Notes of UnumProvident Corporation

  
 The undersigned hereby
notifies you in accordance with Section 4.5(d) of the Pledge Agreement, dated as of May 11, 2004 (the “Pledge Agreement”), among UnumProvident Corporation, yourselves, as Collateral Agent, Securities Intermediary and Custodial Agent, and
JPMorgan Chase Bank, as Purchase Contract Agent and as attorney-in-fact for the Holders of Normal Units and Stripped Units from time to time, that the undersigned elects to deliver on the fourth Business Day immediately preceding the first day of
the Remarketing Period commencing on             , 2007 $             aggregate principal amount of Notes for
delivery to the Remarketing Agent for remarketing pursuant to Section 4.5(d) of the Pledge 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 Notes tendered hereby. 
  
 The undersigned hereby instructs you, upon receipt of the proceeds of such remarketing from the Remarketing Agent, net of amounts payable to the
Remarketing Agent in accordance with the Pledge Agreement, 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/the Last] Failed Remarketing upon receipt of the Notes tendered herewith from the Remarketing Agent, to deliver such 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 Notes tendered hereby and that the undersigned is the record owner of any Notes tendered herewith in physical form or a participant in The Depository Trust Company
(“DTC”) and the beneficial owner of any Notes tendered herewith by book-entry transfer to your account at DTC and (ii) agrees to be bound by the terms and conditions of Section 4.5(d) of the Pledge Agreement. Capitalized terms used herein
but not defined shall have the meaning set forth in the Pledge Agreement. 
  

 C-1 









			
	 Date:
	 	 
	 	 	


  

			
	 Signature:
	 	 
	 	 	

	
	 Signature Guarantee:



  

			
	 Name:
	 	 
	 	 	

	 	 	 (Please Print)

		
	 Address:
	 	 
	 	 	

	 	 	 (Please Print)


  
 Country: 
  
 Zip Code: 
  
 Telecopy (include country code if outside U.S.): 
  
 Telephone (include country code if outside U.S.): 
  
 (Tax Identification or Social Security Number): 
  
 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: 
  
 Country: 
  
 Telecopy (include country code if outside U.S.): 
  
 Telephone (include country code if outside U.S.): 
  
 (Tax Identification or Social Security Number): 
  

 C-2 








 B. DELIVERY INSTRUCTIONS 
  

In the event of [a/the Last] Failed Remarketing, 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: 
  
 Country: 
  
 Telecopy (include country code if outside U.S.): 
  
 Telephone (include country code if outside U.S.): 
  
 (Tax Identification or Social Security Number): 
  
 In the event of [a/the Last] Failed Remarketing, Notes which are in book-entry form should be credited to the account at The Depository Trust Company set forth below.

  

			
	 Name of Account Party:
	  	DTC Account Number:

  

 C-3 








 EXHIBIT D 
  

INSTRUCTION TO CUSTODIAL AGENT REGARDING 
 WITHDRAWAL FROM REMARKETING 
  
 BNY Midwest Trust Company

 2 N. LaSalle Street 
 Suite 1020 
 Chicago, Illinois 60602 
  
 Attention: Corporate Trust Administration 
  

	 	Re:	Notes of UnumProvident Corporation  

  
 The undersigned hereby notifies you in accordance with Section 4.5(d) of the Pledge Agreement, dated as of May 11, 2004 (the “Pledge
Agreement”), among UnumProvident Corporation, yourselves, as Collateral Agent, Securities Intermediary and Custodial Agent, and JPMorgan Chase Bank, as Purchase Contract Agent and as attorney-in-fact for the Holders of Normal Units and Stripped
Units from time to time, that the undersigned elects to withdraw the $             aggregate principal amount of Notes delivered to the Custodial Agent on
                    , 2007 for remarketing pursuant to Section 4.5(d) of the Pledge Agreement. The undersigned hereby instructs you to return
such 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 4.5(d) of the Pledge Agreement. Capitalized terms used herein
but not defined shall have the meaning set forth in the Pledge Agreement. 
  

									
	 Date:
                    
	 	 	 	 	 	 
					
	 	 	 	 	 	 	Signature:	 	 
	 	 	 	 	 	 	 	 	

	 	 	 	 	 	 	Signature Guarantee:	 	 
	 Name(s):
	 	 	 	 	 	 	 	 
	 	 	
	 	 	 	 	 	 
	 	 	 (Please Print)
	 	 	 	 	 	 
	 Address:
	 	 	 	 	 	 	 	 
	 	 	
	 	 	 	 	 	 
	 	 	 (Please Print)
	 	 	 	 	 	 

  
 Zip Code: 
  
 Country: 
  
 Telecopy (include country code if outside U.S.): 
  
 Telephone (include country code if outside U.S.): 
  
 (Tax Identification or Social Security Number): 
  

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 A. DELIVERY INSTRUCTIONS 
  

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: 
  
 Country: 
  
 Telecopy (include country code if outside U.S.): 
  
 Telephone (include country code if outside U.S.): 
  
 (Tax Identification or Social Security Number): 
  
 Notes which are in book-entry form should be credited to the account at The Depository Trust Company set forth below. 
  

									
	Name of Account Party:	 	 	 	 	 	DTC Account Number:	 	 

  

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