EX-4.1



 Exhibit 4.1 

PRA GROUP, INC. 

(Issuer) 
 and 

REGIONS BANK, 
 as
Trustee 
 INDENTURE 

Dated as of May 26, 2017 

3.50% Convertible Senior Notes due 2023 







 TABLE OF CONTENTS 

 

							
	 	  	 	  	Page	 
	 ARTICLE I DEFINITIONS
	  	 	1	 
			
	 Section 1.01
	  	Definitions	  	 	1	 
	 Section 1.02
	  	References to Interest	  	 	12	 
		
	 ARTICLE II ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES
	  	 	12	 
			
	 Section 2.01
	  	Designation and Amount	  	 	12	 
	 Section 2.02
	  	Form of Notes	  	 	12	 
	 Section 2.03
	  	Date and Denomination of Notes; Payments of Interest and Defaulted Amounts	  	 	13	 
	 Section 2.04
	  	Execution, Authentication and Delivery of Notes	  	 	14	 
	 Section 2.05
	  	Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary	  	 	15	 
	 Section 2.06
	  	Mutilated, Destroyed, Lost or Stolen Notes	  	 	21	 
	 Section 2.07
	  	Temporary Notes	  	 	22	 
	 Section 2.08
	  	Cancellation of Notes Paid, Converted, Etc.	  	 	22	 
	 Section 2.09
	  	CUSIP Numbers	  	 	23	 
	 Section 2.10
	  	Additional Notes; Repurchases	  	 	23	 
		
	 ARTICLE III SATISFACTION AND DISCHARGE
	  	 	23	 
			
	 Section 3.01
	  	Satisfaction and Discharge	  	 	23	 
		
	 ARTICLE IV PARTICULAR COVENANTS OF THE COMPANY
	  	 	24	 
			
	 Section 4.01
	  	Payment of Principal and Interest	  	 	24	 
	 Section 4.02
	  	Maintenance of Office or Agency	  	 	24	 
	 Section 4.03
	  	Appointments to Fill Vacancies in Trustee’s Office	  	 	25	 
	 Section 4.04
	  	Provisions as to Paying Agent	  	 	25	 
	 Section 4.05
	  	Existence	  	 	26	 
	 Section 4.06
	  	Rule 144A Information Requirement and Annual Reports	  	 	26	 
	 Section 4.07
	  	Stay, Extension and Usury Laws	  	 	28	 
	 Section 4.08
	  	Compliance Certificate; Statements as to Defaults	  	 	28	 
		
	 ARTICLE V LISTS OF HOLDERS AND REPORTS BY THE COMPANY AND THE TRUSTEE
	  	 	29	 
			
	 Section 5.01
	  	Lists of Holders	  	 	29	 
	 Section 5.02
	  	Preservation and Disclosure of Lists	  	 	29	 


  
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	 ARTICLE VI DEFAULTS AND REMEDIES
	  	 	29	 
			
	 Section 6.01
	  	Events of Default	  	 	29	 
	 Section 6.02
	  	Acceleration; Rescission and Annulment	  	 	30	 
	 Section 6.03
	  	Additional Interest in Lieu of Reporting Default	  	 	31	 
	 Section 6.04
	  	Payments of Notes on Default; Suit Therefor	  	 	32	 
	 Section 6.05
	  	Application of Monies Collected by Trustee	  	 	34	 
	 Section 6.06
	  	Proceedings by Holders	  	 	34	 
	 Section 6.07
	  	Proceedings by Trustee	  	 	35	 
	 Section 6.08
	  	Remedies Cumulative and Continuing	  	 	35	 
	 Section 6.09
	  	Direction of Proceedings and Waiver of Defaults by Majority of Holders	  	 	36	 
	 Section 6.10
	  	Notice of Defaults	  	 	36	 
	 Section 6.11
	  	Undertaking to Pay Costs	  	 	37	 
		
	 ARTICLE VII CONCERNING THE TRUSTEE
	  	 	37	 
			
	 Section 7.01
	  	Duties and Responsibilities of Trustee	  	 	37	 
	 Section 7.02
	  	Reliance on Documents, Opinions, Etc.	  	 	39	 
	 Section 7.03
	  	No Responsibility for Recitals, Etc.	  	 	40	 
	 Section 7.04
	  	Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or Note Registrar May Own Notes	  	 	41	 
	 Section 7.05
	  	Monies and Shares of Common Stock to Be Held in Trust	  	 	41	 
	 Section 7.06
	  	Compensation and Expenses of Trustee	  	 	41	 
	 Section 7.07
	  	Eligibility of Trustee	  	 	42	 
	 Section 7.08
	  	Resignation or Removal of Trustee	  	 	42	 
	 Section 7.09
	  	Acceptance by Successor Trustee	  	 	43	 
	 Section 7.10
	  	Succession by Merger, Etc.	  	 	44	 
	 Section 7.11
	  	Trustee’s Application for Instructions from the Company	  	 	44	 
		
	 ARTICLE VIII CONCERNING THE HOLDERS
	  	 	45	 
			
	 Section 8.01
	  	Action by Holders	  	 	45	 
	 Section 8.02
	  	Proof of Execution by Holders	  	 	45	 
	 Section 8.03
	  	Who Are Deemed Absolute Owners	  	 	45	 
	 Section 8.04
	  	Company-Owned Notes Disregarded	  	 	45	 
	 Section 8.05
	  	Revocation of Consents; Future Holders Bound	  	 	46	 
		
	 ARTICLE IX HOLDERS’ MEETINGS
	  	 	46	 
			
	 Section 9.01
	  	Purpose of Meetings	  	 	46	 
	 Section 9.02
	  	Call of Meetings by Trustee	  	 	47	 
	 Section 9.03
	  	Call of Meetings by Company or Holders	  	 	47	 
	 Section 9.04
	  	Qualifications for Voting	  	 	47	 
	 Section 9.05
	  	Regulations	  	 	47	 
	 Section 9.06
	  	Voting	  	 	48	 
	 Section 9.07
	  	No Delay of Rights by Meeting	  	 	48	 


  
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	 ARTICLE X SUPPLEMENTAL INDENTURES
	  	 	49	 
			
	 Section 10.01
	  	Supplemental Indentures Without Consent of Holders	  	 	49	 
	 Section 10.02
	  	Supplemental Indentures With Consent of Holders	  	 	50	 
	 Section 10.03
	  	Effect of Supplemental Indentures	  	 	51	 
	 Section 10.04
	  	Notation on Notes	  	 	51	 
	 Section 10.05
	  	Evidence of Compliance of Supplemental Indenture to Be Furnished Trustee	  	 	51	 
		
	 ARTICLE XI CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE
	  	 	51	 
			
	 Section 11.01
	  	Company May Consolidate, Etc. on Certain Terms	  	 	51	 
	 Section 11.02
	  	[Reserved]	  	 	52	 
	 Section 11.03
	  	Successor Corporation to Be Substituted	  	 	52	 
	 Section 11.04
	  	Evidence to Be Given to Trustee	  	 	53	 
		
	 ARTICLE XII NO PERSONAL LIABILITY OF DIRECTORS, OFFICERS, EMPLOYEES OR
STOCKHOLDERS
	  	 	53	 
			
	 Section 12.01
	  	Indenture and Notes Solely Corporate Obligations	  	 	53	 
		
	 ARTICLE XIII CONVERSION OF NOTES
	  	 	53	 
			
	 Section 13.01
	  	Conversion Privilege	  	 	53	 
	 Section 13.02
	  	Conversion Procedure; Settlement Upon Conversion	  	 	56	 
	 Section 13.03
	  	Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection with Make-Whole Fundamental Changes	  	 	60	 
	 Section 13.04
	  	Adjustment of Conversion Rate	  	 	62	 
	 Section 13.05
	  	Adjustments of Prices	  	 	71	 
	 Section 13.06
	  	Shares to Be Fully Paid	  	 	71	 
	 Section 13.07
	  	Effect of Recapitalizations, Reclassifications and Changes of the Common Stock	  	 	71	 
	 Section 13.08
	  	Certain Covenants	  	 	73	 
	 Section 13.09
	  	Responsibility of Trustee	  	 	73	 
	 Section 13.10
	  	Stockholder Rights Plans	  	 	74	 
	 Section 13.11
	  	Withholding Taxes for Adjustments in Conversation Rate	  	 	74	 
		
	 ARTICLE XIV REPURCHASE OF NOTES AT OPTION OF HOLDERS
	  	 	74	 
			
	 Section 14.01
	  	Repurchase at Option of Holders Upon a Fundamental Change	  	 	74	 
	 Section 14.02
	  	Withdrawal of Fundamental Change Repurchase Notice	  	 	77	 
	 Section 14.03
	  	Deposit of Fundamental Change Repurchase Price	  	 	77	 
	 Section 14.04
	  	Covenant to Comply with Applicable Laws Upon Repurchase of Notes	  	 	78	 


  
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	 ARTICLE XV OPTIONAL REDEMPTION
	  	 	78	 
			
	 Section 15.01
	  	Optional Redemption	  	 	78	 
		
	 ARTICLE XVI MISCELLANEOUS PROVISIONS
	  	 	80	 
			
	 Section 16.01
	  	Provisions Binding on Company’s Successors	  	 	80	 
	 Section 16.02
	  	Official Acts by Successor Corporation	  	 	80	 
	 Section 16.03
	  	Addresses for Notices, Etc.	  	 	81	 
	 Section 16.04
	  	Governing Law; Jury Trial Waiver	  	 	81	 
	 Section 16.05
	  	Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee	  	 	82	 
	 Section 16.06
	  	Legal Holidays	  	 	82	 
	 Section 16.07
	  	No Security Interest Created	  	 	82	 
	 Section 16.08
	  	Benefits of Indenture	  	 	82	 
	 Section 16.09
	  	Table of Contents, Headings, Etc.	  	 	83	 
	 Section 16.10
	  	Authenticating Agent	  	 	83	 
	 Section 16.11
	  	Execution in Counterparts	  	 	84	 
	 Section 16.12
	  	Severability	  	 	84	 
	 Section 16.13
	  	Force Majeure	  	 	84	 
	 Section 16.14
	  	Calculations	  	 	84	 
	 Section 16.15
	  	USA PATRIOT Act	  	 	84	 
	 Section 16.16
	  	No Adverse Interpretation of Other Agreements	  	 	85	 
			
		  	EXHIBIT	  			
		
	 Exhibit A Form of Note
	  	 	A-1	 


  
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 INDENTURE, dated as of May 26, 2017, between PRA GROUP, INC., a Delaware corporation, as
issuer (the “Company,” as more fully set forth in Section 1.01) and REGIONS BANK, an Alabama bank, as trustee (the “Trustee,” as more fully set forth in Section 1.01). 

W I T N E S S E T H: 

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issuance of the Company’s 3.50% Convertible Senior Notes
due 2023 (the “Notes”), initially in an aggregate principal amount not to exceed $345,000,000, and the Company has duly authorized the execution and delivery of this Indenture. 

NOW, THEREFORE, THIS INDENTURE WITNESSETH: 

That in order to declare the terms and conditions upon which the Notes are, and are to be, authenticated, issued and delivered, and in
consideration of the premises and of the purchase and acceptance of the Notes by the Holders thereof, the Company covenants and agrees with the Trustee for the equal and proportionate benefit of the respective Holders from time to time of the Notes
(except as otherwise provided below), as follows: 
 ARTICLE I 

DEFINITIONS 

Section 1.01    Definitions. The terms defined in this Section 1.01 (except as herein otherwise expressly
provided or unless the context otherwise requires) for all purposes of this Indenture and of any indenture supplemental hereto shall have the respective meanings specified in this Section 1.01. The words “herein,” “hereof,”
“hereunder,” and words of similar import refer to this Indenture as a whole and not to any particular Article, Section or other subdivision. The terms defined in this Article include the plural as well as the singular. 

“Additional Interest” means all amounts, if any, payable pursuant to Section 4.06(d), Section 4.06(e) and Section 6.03,
as applicable. 
 “Additional Shares” shall have the meaning specified in Section 13.03. 

“Affiliate” of any specified Person means any other Person directly or indirectly controlling or controlled by or under
direct or indirect common control with such specified Person. For the purposes of this definition, “control,” when used with respect to any specified Person means the power to direct or cause the direction of the management and policies of
such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 

“Bid Solicitation Agent” means the Company or the Person appointed by the Company to solicit bids for the Trading Price of
the Notes in accordance with Section 13.01(b)(i). The Company shall initially act as the Bid Solicitation Agent. 
 “Board of
Directors” means the board of directors of the Company or a committee of such board duly authorized to act for it hereunder. 







 “Board Resolution” means a copy of a resolution certified by the Secretary or an
Assistant Secretary of the Company to have been duly adopted by the Board of Directors, and to be in full force and effect on the date of such certification, and delivered to the Trustee. 

“Business Day” means, with respect to any Note, any day other than a Saturday, a Sunday or a day on which the Federal Reserve
Bank of New York is authorized or required by law or executive order to close or be closed. 
 “Capital Stock” means, for
any entity, any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) stock issued by that entity. 

“Cash Settlement” shall have the meaning specified in Section 13.02(a). 

“close of business” means 5:00 p.m. (New York City time). 

“Combination Settlement” shall have the meaning specified in Section 13.02(a). 

“Commission” means the U.S. Securities and Exchange Commission. 

“Common Equity” of any Person means Capital Stock of such Person that is generally entitled (a) to vote in the election
of directors of such Person or (b) if such Person is not a corporation, to vote or otherwise participate in the selection of the governing body, partners, managers or others that will control the management or policies of such Person. 

“Common Stock” means the common stock of the Company, par value $0.01 per share, at the date of this Indenture. 

“Common Stock Change Event” shall have the meaning specified in Section 13.07(a). 

“Company” shall have the meaning specified in the first paragraph of this Indenture, and subject to the provisions of Article
XI, shall include its successors and assigns. 
 “Company Order” means a written order of the Company, signed by
(a) the Company’s Chief Executive Officer, Chief Financial Officer, President, Executive or Senior Vice President, or any Vice President (whether or not designated by a number or numbers or word or words added before or after the title
“Vice President”) and (b) any such other Officer designated in clause (a) of this definition or the Company’s Treasurer or any Assistant Treasurer or Secretary or any Assistant Secretary, and delivered to the Trustee. 

“Conversion Agent” shall have the meaning specified in Section 4.02. 

“Conversion Date” shall have the meaning specified in Section 13.02(c). 

“Conversion Obligation” shall have the meaning specified in Section 13.01(a). 

“Conversion Price” means as of any date, $1,000 divided by the Conversion Rate as of such date. 

  
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 “Conversion Rate” shall have the meaning specified in Section 13.01(a). 

“Corporate Trust Office” means the designated office of the Trustee at which at any time its corporate trust business shall
be administered, which office at the date hereof is located at 1180 West Peachtree Street, Suite 1200, Atlanta, GA 30309, Attention: Corporate Trust Services - PRA Group, Inc., or such other address as the Trustee may designate from time to time by
notice to the Holders and the Company, or the designated corporate trust office of any successor trustee (or such other address as such successor trustee may designate from time to time by notice to the Holders and the Company). 

“Custodian” means the Trustee, as custodian for DTC, with respect to the Global Notes, or any successor entity thereto. 

“Daily Conversion Value” means, for each of the 40 consecutive VWAP Trading Days during the Observation Period, one-40th of the product of (a) the Conversion Rate on such VWAP Trading Day and (b) the Daily VWAP on such VWAP Trading Day. 

“Daily Measurement Value” means, the Specified Dollar Amount divided by 40. 

“Daily Settlement Amount” for each of the 40 consecutive VWAP Trading Days during the Observation Period, shall consist of:

 (a)    cash equal to the lesser of (i) the Daily Measurement Value and (ii) the Daily Conversion Value for
such VWAP Trading Day; and 
 (b)    if such Daily Conversion Value exceeds such Daily Measurement Value, a number of
shares of Common Stock equal to (1) the difference between such Daily Conversion Value and such Daily Measurement Value, divided by (2) the Daily VWAP for such VWAP Trading Day. 

“Daily VWAP” means, for each of the 40 consecutive VWAP Trading Days during the applicable Observation Period, the per share
volume-weighted average price as displayed under the heading “Bloomberg VWAP” on Bloomberg page “PRAA <equity> AQR” (or its equivalent successor, if such page is not available) in respect of the period from the scheduled
open of trading until the scheduled close of trading of the primary trading session on such VWAP Trading Day (or if such volume-weighted average price is unavailable, the market value of one share of the Common Stock on such VWAP Trading Day
determined, using a volume-weighted average method, by a nationally recognized independent investment banking firm retained for this purpose by the Company). The “Daily VWAP” shall be determined without regard to after-hours trading
or any other trading outside of the regular trading session trading hours. 
 “Default” means any event that is, or after
notice or passage of time, or both, would be, an Event of Default. 
 “Default Settlement Method” means initially
Combination Settlement with a Specified Dollar Amount of $1,000 per $1,000 principal amount of Notes. The Company may, from time to time, change the Default Settlement Method by sending notice of the new Default Settlement Method to the holders.


  
 3 








 “Defaulted Amounts” means any amounts on any Note (including, without
limitation, the Redemption Price or Fundamental Change Repurchase Price, principal and interest) that are payable but are not punctually paid or duly provided for. 

“Depositary” means, with respect to each Global Note, the Person specified in Section 2.05(c) as the Depositary with respect
to such Notes, until a successor shall have been appointed and become such pursuant to the applicable provisions of this Indenture, and thereafter, “Depositary” shall mean or include such successor. 

“Distributed Property” shall have the meaning specified in Section 13.04(c). 

“DTC” means The Depository Trust Company. 

“Effective Date” shall have the meaning specified in Section 13.03(c); provided that, solely for purposes of
Section 13.04, “Effective Date” means the first date on which shares of Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as
applicable. 
 “Event of Default” shall have the meaning specified in Section 6.01. 

“Ex-Dividend Date” means the first date on which shares of the Common Stock trade on
the applicable exchange or in the applicable market, regular way, without the right to receive the issuance, dividend or distribution in question, from the Company or, if applicable, from the seller of Common Stock on such exchange or market (in the
form of due bills or otherwise) as determined by such exchange or market. 
 “Exchange Act” means the Securities Exchange
Act of 1934, as amended, and the rules and regulations promulgated thereunder. 
 “Expiration Date” shall have the meaning
specified in Section 13.04(e). 
 “Form of Assignment and Transfer” means the “Form of Assignment and Transfer”
in substantially the form attached as Attachment 3 to the Form of Note attached hereto as Exhibit A. 
 “Form of Fundamental Change
Repurchase Notice” means the “Form of Fundamental Change Repurchase Notice” in substantially the form attached as Attachment 2 to the form of Note attached hereto as Exhibit A. 

“Form of Notice of Conversion” means the “Form of Notice of Conversion” in substantially the form attached as
Attachment 1 to the form of Note attached hereto as Exhibit A. 
 “Fundamental Change” shall be deemed to have occurred at
the time after the Notes are originally issued if any of the following occurs: 
 (a)    a “person” or
“group” within the meaning of Section 13(d) of the Exchange Act, other than the Company, its Subsidiaries and the employee benefit plans of the Company and its Subsidiaries, files a Schedule TO or any other schedule, form or report under
the Exchange Act 

  
 4 








 
disclosing that such person or group has become the “beneficial owner,” as defined in Rule 13d-3 under the Exchange Act, of the Company’s
Common Equity representing more than 50% of the voting power of the Company’s Common Equity; 
 (b)    the
consummation of (A) any recapitalization, reclassification or change of the Common Stock (other than changes resulting from a subdivision or combination) as a result of which the Common Stock would be converted into, or exchanged for, stock,
other securities, other property or assets; (B) any share exchange, consolidation or merger of the Company pursuant to which the Common Stock will be converted into cash, securities or other property, other than a merger of the Company solely
for the purpose of changing the Company’s jurisdiction of incorporation in the United States, that results in a reclassification, conversion or exchange of outstanding shares of the Common Stock solely into shares of common stock of the
surviving entity; or (C) any sale, lease or other transfer in one transaction or a series of transactions of all or substantially all of the properties and assets of the Company and its Subsidiaries, taken as a whole, to any Person other than
one or more of the Company’s wholly-owned Subsidiaries; provided, however, that a transaction described in clause (B) in which the holders of all classes of the Company’s Common Equity immediately prior to such transaction own,
directly or indirectly, more than 50% of all classes of Common Equity representing more than 50% of the total voting power of the continuing or surviving corporation or transferee or the parent thereof immediately after such transaction in
substantially the same proportions as such ownership immediately prior to such transaction shall not be a fundamental change pursuant to this clause (b) (this proviso, the “Majority Ownership Exception”); 

(c)    the Company’s stockholders approve any plan or proposal for the liquidation or dissolution of the Company
(whether or not otherwise in compliance with the provisions of this Indenture); or 
 (d)    the Common Stock ceases to
be listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors); 

provided, however, that a transaction or transactions described in clause (b) above shall not constitute a Fundamental Change if at least 90% of
the consideration received or to be received by the common stockholders of the Company, excluding cash payments for fractional shares and cash payments made in respect of dissenters’ appraisal rights, in connection with such transaction or
transactions consists of shares of common stock or ordinary shares that are listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors) or will be so
listed or quoted when issued or exchanged in connection with such transaction or transactions, and such transaction or transactions constitute a Common Stock Change Event for which the Reference Property is such consideration. For the purposes of
this definition, any event, transaction or series of related transactions that constitute a Fundamental Change under both clause (a) and clause (b) above will be deemed to constitute a Fundamental Change solely under clause (b) of
this definition. 
 “Fundamental Change Company Notice” shall have the meaning specified in Section 14.01(c). 

  
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 “Fundamental Change Repurchase Date” shall have the meaning specified in
Section 14.01. 
 “Fundamental Change Repurchase Notice” shall have the meaning specified in Section 14.01(b)(i). 

“Fundamental Change Repurchase Price” shall have the meaning specified in Section 14.01. 

“Global Note” shall have the meaning specified in Section 2.05(b). 

“Holder,” as applied to any Note, or other similar terms (but excluding the term “beneficial holder,”
“beneficial owner” or “owner of a beneficial interest” or terms of similar import), means any Person in whose name at the time a particular Note is registered on the Note Register. 

“Indenture” means this instrument as originally executed or, if amended or supplemented as herein provided, as so amended or
supplemented. 
 “Interest Payment Date” means each June 1 and December 1 of each year, beginning on
December 1, 2017. 
 “Last Reported Sale Price” of the Common Stock on any date means the closing sale price (or if no
closing sale price is reported, the average of the bid and ask prices or, if more than one in either case, the average of the average bid and the average ask prices) per share on that date as reported in composite transactions for the principal U.S.
national or regional securities exchange on which the Common Stock is traded. If the Common Stock is not listed for trading on a U.S. national or regional securities exchange on the relevant date, the “Last Reported Sale Price”
shall be the last quoted bid price per share for the Common Stock in the over-the-counter market on the relevant date as reported by OTC Markets Group Inc. or a similar
organization. If the Common Stock is not so quoted, the “Last Reported Sale Price” shall be the average of the mid-point of the last bid and ask prices per share for the Common Stock on the
relevant date from each of at least three nationally recognized independent investment banking firms selected by the Company for this purpose. 

“Majority Ownership Exception” shall have the meaning specified in the definition of Fundamental Change in this
Section 1.01. 
 “Make-Whole Fundamental Change” means any transaction or event that constitutes a Fundamental Change
(as defined above and determined after giving effect to any exceptions to or exclusions from such definition, but without regard to the Majority Ownership Exception). 

“Market Disruption Event” means the occurrence or existence during the one-half hour
period ending on the scheduled close of trading on the principal U.S. national or regional securities exchange on which the Common Stock is listed for trading of any material suspension or limitation imposed on trading (by reason of movements in
price exceeding limits permitted by the stock exchange or otherwise) in the Common Stock or in any options contracts or futures contracts relating to the Common Stock. 

  
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 “Maturity Date” means June 1, 2023. 

“Measurement Period” shall have the meaning specified in Section 13.01(b)(i). 

“Note” or “Notes” shall have the meaning specified in the first paragraph of the recitals of this Indenture.

 “Note Register” shall have the meaning specified in Section 2.05(a). 

“Note Registrar” shall have the meaning specified in Section 2.05(a). 

“Notice of Conversion” shall have the meaning specified in Section 13.02(b). 

“Observation Period,” with respect to any Note surrendered for conversion, means: (i) subject to the immediately
following clause (ii), if the relevant Conversion Date occurs prior to March 1, 2023, the 40 consecutive VWAP Trading Days beginning on, and including, the second VWAP Trading Day after such Conversion Date; (ii) if such Conversion Date
occurs on or after a Redemption Notice Date and before the related Redemption Date, the 40 consecutive VWAP Trading Days beginning on, and including, the 42nd (or, if the T+2 Effective Date has occurred by the 42nd Scheduled Trading Day immediately
before such Redemption Date, or, by such 42nd Scheduled Trading Day, the Relevant Exchange or other relevant authority has announced that the T+2 Effective Date will occur within the next 39 Scheduled Trading Days, the 41st) Scheduled Trading Day
immediately before such Redemption Date and (iii) subject to the immediately preceding clause (ii), if the relevant Conversion Date occurs on or after March 1, 2023, the 40 consecutive VWAP Trading Days beginning on, and including, the
42nd (or, if the T+2 Effective Date has occurred by the 42nd Scheduled Trading Day immediately preceding the Maturity Date, or, by such 42nd Scheduled Trading Day, the Relevant Exchange or other relevant authority has announced that the T+2
Effective Date will occur within the next 39 Scheduled Trading Days, the 41st) Scheduled Trading Day immediately preceding the Maturity Date. 

“Offering Memorandum” means (a) with respect to the Original Notes, the Original Offering Memorandum and (b) with
respect to any additional Notes issued pursuant to Section 2.10, the offering memorandum, prospectus or similar offering document, including any related pricing term sheet, relating to the offering and sale of such additional Notes. 

“Officer” means, with respect to the Company, the Chief Executive Officer, the Chief Financial Officer, the President, the
Treasurer, any Assistant Treasurer, the Secretary, any Assistant Secretary, any Executive or Senior Vice President or any Vice President (whether or not designated by a number or numbers or word or words added before or after the title “Vice
President”). 
 “Officer’s Certificate,” when used with respect to the Company, means a certificate
that is delivered to the Trustee and that is signed by an Officer of the Company. Each such certificate shall include the statements provided for in Section 16.05 if and to the extent required by the provisions of such Section. The Officer
giving an Officer’s Certificate pursuant to Section 4.08 shall be the principal executive, financial or accounting officer of the Company. 

  
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 “open of business” means 9:00 a.m. (New York City time). 

“Opinion of Counsel” means an opinion in writing signed by legal counsel, who may be an employee of or counsel to the Company
that is delivered to the Trustee, which opinion may contain customary exceptions and qualifications as to the matters set forth therein. Each such opinion shall include the statements provided for in Section 16.05 if and to the extent required
by the provisions of such Section 16.05. 
 “Original Notes” means the $345,000,000 aggregate principal amount of
Notes, covered by the Original Offering Memorandum. 
 “Original Offering Memorandum” means the preliminary offering
memorandum dated May 22, 2017, as supplemented by the pricing term sheet dated May 22, 2017, relating to the offering and sale of the Notes. 

“outstanding,” when used with reference to Notes, shall, subject to the provisions of Section 8.04, mean, as of any
particular time, all Notes authenticated and delivered by the Trustee under this Indenture, except: 
 (a)    Notes
theretofore canceled by the Trustee or accepted by the Trustee for cancellation; 
 (b)    Notes, or portions thereof,
that have become due and payable and in respect of which monies in the necessary amount shall have been deposited in trust with the Trustee or with any Paying Agent (other than the Company) or shall have been set aside and segregated in trust by the
Company (if the Company shall act as its own Paying Agent); 
 (c)    Notes that have been paid pursuant to
Section 2.06 or Notes in lieu of which, or in substitution for which, other Notes shall have been authenticated and delivered pursuant to the terms of Section 2.06 unless proof satisfactory to the Trustee is presented that any such Notes
are held by protected purchasers in due course; 
 (d)    Notes converted pursuant to Article XIII and required to be
cancelled pursuant to Section 2.08; and 
 (e)    Notes repurchased pursuant to the penultimate sentence of
Section 2.10. 
 “Paying Agent” shall have the meaning specified in Section 4.02. 

“Person” means an individual, a corporation, a limited liability company, an association, a partnership, a joint venture, a
joint stock company, a trust, an unincorporated organization or a government or an agency or a political subdivision thereof. 

“Physical Notes” means permanent certificated Notes in registered form issued in denominations of $1,000 principal amount and
multiples thereof. 
 “Physical Settlement” shall have the meaning specified in Section 13.02(a). 

  
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 “Predecessor Note” of any particular Note means every previous Note evidencing
all or a portion of the same debt as that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 2.06 in lieu of or in exchange for a mutilated, lost, destroyed or stolen
Note shall be deemed to evidence the same debt as the mutilated, lost, destroyed or stolen Note that it replaces. 
 “Redemption
Date” means the date fixed for the repurchase of any Notes by the Company pursuant to Section 15.01. 
 “Redemption
Notice Date” means, with respect to a Redemption, the date on which the Company sends the Redemption Notice for such Redemption pursuant to Section 15.01. 

“Redemption Price” means the cash price payable by the Company to redeem any Note upon its Redemption, calculated pursuant to
Section 15.01. 
 “Reference Property” shall have the meaning specified in Section 13.07(a). 

“Regular Record Date,” with respect to any Interest Payment Date, means the May 15 or November 15 (whether or not
such day is a Business Day) immediately preceding the applicable June 1 or December 1 Interest Payment Date, respectively. 

“Relevant Exchange” means The NASDAQ Global Select Market or, if the Common Stock is not then listed on The NASDAQ Global
Select Market, the principal U.S. national or regional securities exchange on which the Common Stock is listed for trading. 

“Resale Restriction Termination Date,” (i) with respect to the Notes, shall have the meaning specified in the legend set
forth in Section 2.05(c), and (ii) with respect to the Common Stock issued upon conversion of the Notes, shall have the meaning specified in the legend set forth in Section 2.05(d). 

“Responsible Officer” means, when used with respect to the Trustee, any officer within the Corporate Trust Office of the
Trustee, including any vice president, any assistant vice president, any trust officer or assistant trust officer or any other officer of the Trustee who customarily performs functions similar to those performed by the persons who at the time shall
be such officers, respectively, or to whom any corporate trust matter is referred because of such person’s knowledge of and familiarity with the particular subject and, in each case, who shall have direct responsibility for the administration
of this Indenture. 
 “Restricted Securities” shall have the meaning specified in Section 2.05(c). 

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

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

“Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the principal U.S. national or regional
securities exchange or market on which the Common Stock is listed or admitted for trading. If the Common Stock is not so listed or admitted for trading, “Scheduled Trading Day” means a Business Day. 

  
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 “Securities Act” means the Securities Act of 1933, as amended, and the rules and
regulations promulgated thereunder. 
 “Settlement Amount” has the meaning specified in Section 13.02(a)(ii). 

“Settlement Method” means, with respect to any conversion of Notes, Physical Settlement, Cash Settlement or Combination
Settlement, as elected (or deemed to have been elected) by the Company. 
 “Settlement Notice” has the meaning specified in
Section 13.02(a)(i). 
 “Shelf Registration Statement” means a registration statement of the Company filed with the
Commission on either (i) Form S-3 (or any successor form or other appropriate form under the Securities Act) or (ii) if the Company is not permitted to file a registration statement on Form S-3, an evergreen registration statement on Form S-1 (or any successor form or other appropriate form under the Securities Act), in each case for an offering to be made on a
continuous or delayed basis pursuant to Rule 415 under the Securities Act covering Notes and any Common Stock issuable upon conversion thereof. 

“Significant Subsidiary” means a Subsidiary of the Company that meets the definition of “significant subsidiary” in
Article 1, Rule 1-02(w) of Regulation S-X under the Exchange Act; provided that, for purposes of Section 6.01(i) and Section 6.01(j), in the case of a Subsidiary
of the Company that meets the criteria of clause (3) of the definition thereof but not clause (1) or (2) thereof, such Subsidiary shall not be deemed to be a Significant Subsidiary unless the Subsidiary’s income from continuing
operations before income taxes, extraordinary items and cumulative effect of a change in accounting principle, exclusive of amounts attributable to any non-controlling interests, for the last completed fiscal
year prior to the date of such determination exceeds $25,000,000. 
 “Specified Dollar Amount” means the maximum cash
amount per $1,000 principal amount of Notes being converted to be received upon conversion (excluding cash in lieu of any fractional share of Common Stock). 

“Spin-Off” shall have the meaning specified in Section 13.04(c). 

“Spin-Off Valuation Period” shall have the meaning specified in Section 13.04(c).

 “Stock Price” shall have the meaning specified in Section 13.03(c). 

“Subsidiary” means, with respect to any Person, any corporation, association, partnership or other business entity of which
more than 50% of the total voting power of shares of Capital Stock or other interests (including partnership interests) entitled (without regard to the occurrence of any contingency) to vote in the election of directors, managers, general partners
or trustees thereof is at the time owned or controlled, directly or indirectly, by (i) such Person; (ii) such Person and one or more Subsidiaries of such Person; or (iii) one or more Subsidiaries of such Person. 

“Successor Company” shall have the meaning specified in Section 11.01(a). 

  
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 “T+2 Effective Date” means the date, if at all, the Relevant Exchange has
adopted a normal settlement cycle of two Business Days for trading in the Common Stock, and the T+2 Effective Date will be the first date for which trades executed on that date are subject to such new cycle. 

“Tender/Exchange Offer Valuation Period” shall have the meaning specified in Section 13.04(e). 

“Trading Day” means a day on which (i) trading in the Common Stock (or other security for which a closing sale price
must be determined) generally occurs on The NASDAQ Global Select Market or, if the Common Stock is not then listed on The NASDAQ Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common Stock (or
such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional securities exchange, on the principal other market on which the Common Stock (or such other security) is then
listed or admitted for trading, (ii) there is no Market Disruption Event and (iii) a Last Reported Sale Price for the Common Stock (or closing price for such other security) is available on such securities exchange or market; provided
that if the Common Stock (or such other security) is not so listed or traded, “Trading Day” means a Business Day. 

“Trading Price” of the Notes on any date of determination means the average of the secondary market bid quotations obtained
by the Bid Solicitation Agent for $5,000,000 principal amount of Notes at approximately 3:30 p.m., New York City time, on such determination date from three independent nationally recognized securities dealers the Company selects for this purpose;
provided that if three such bids cannot reasonably be obtained by the Bid Solicitation Agent but two such bids are obtained, then the average of such two bids shall be used, and if only one such bid can reasonably be obtained by the Bid
Solicitation Agent, that one bid shall be used. If the Bid Solicitation Agent cannot reasonably obtain at least one bid for $5,000,000 principal amount of Notes from a nationally recognized securities dealer on any determination date, then the
Trading Price per $1,000 principal amount of Notes on such determination date shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the applicable Conversion Rate. 

“transfer” shall have the meaning specified in Section 2.05(c). 

“Trust Indenture Act” means the Trust Indenture Act of 1939, as amended, as it was in force at the date of execution of this
Indenture; provided, however, that in the event the Trust Indenture Act of 1939 is amended after the date hereof, the term “Trust Indenture Act” shall mean, to the extent required by such amendment, the Trust Indenture Act of 1939,
as so amended. 
 “Trustee” means the Person named as the “Trustee” in the first paragraph of this
Indenture until a successor trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter, “Trustee” shall mean or include each Person who is then a Trustee hereunder. 

“unit of Reference Property” shall have the meaning specified in Section 13.07(a). 

  
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 “VWAP Market Disruption Event” means (i) a failure by the primary U.S.
national or regional securities exchange or market on which the Common Stock is listed or admitted for trading to open for trading during its regular trading session or (ii) the occurrence or existence prior to 1:00 p.m., New York City time, on
any Scheduled Trading Day for the Common Stock for more than one half-hour period in the aggregate during regular trading hours of any suspension or limitation imposed on trading (by reason of movements in price exceeding limits permitted by the
relevant stock exchange or otherwise) in the Common Stock or in any options, contracts or futures contracts relating to the Common Stock. 

“VWAP Trading Day” means a day on which (i) there is no VWAP Market Disruption Event and (ii) trading in the Common
Stock generally occurs on The NASDAQ Global Select Market or, if the Common Stock is not then listed on The NASDAQ Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common Stock is then listed
or, if the Common Stock is not then listed on a U.S. national or regional securities exchange, on the principal other market on which the Common Stock is then listed or admitted for trading, except that if the Common Stock is not so listed or
admitted for trading, “VWAP Trading Day” means a Business Day 
 Section 1.02    References to
Interest. Unless the context otherwise requires, any reference to interest on, or in respect of, any Note in this Indenture shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable
pursuant to any of Section 4.06(d), Section 4.06(e) and Section 6.03. Unless the context otherwise requires, any express mention of Additional Interest in any provision hereof shall not be construed as excluding Additional Interest in those
provisions hereof where such express mention is not made. 
 ARTICLE II 

ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES 

Section 2.01    Designation and Amount. The Notes shall be designated as the “3.50% Convertible Senior
Notes due 2023.” The aggregate principal amount of Notes that may be authenticated and delivered under this Indenture is initially limited to $345,000,000, subject to Section 2.10 and except for Notes authenticated and delivered upon
registration or transfer of, or in exchange for, or in lieu of other Notes pursuant to Section 2.05, Section 2.06, Section 2.07, Section 10.04, Section 13.02 and Section 14.03. 

Section 2.02    Form of Notes. The Notes and the Trustee’s certificate of authentication to be borne by
such Notes shall be substantially in the respective forms set forth in Exhibit A, the terms and provisions of which shall constitute, and are hereby expressly incorporated in and made a part of this Indenture. To the extent applicable, the Company
and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. 

Any Global Note may be endorsed with or have incorporated in the text thereof such legends or recitals or changes not inconsistent with the
provisions of this Indenture as may be required by the Custodian or the Depositary, or as may be required to comply with any applicable law or any regulation thereunder or with the rules and regulations of any securities


  
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exchange or automated quotation system upon which the Notes may be listed or traded or designated for issuance or to conform with any usage with respect thereto, or to indicate any special
limitations or restrictions to which any particular Notes are subject. 
 Any of the Notes may have such letters, numbers or other marks of
identification and such notations, legends or endorsements as the Officers executing the same may approve (execution thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions of this Indenture, or as may be
required to comply with any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, or to conform
to usage or to indicate any special limitations or restrictions to which any particular Notes are subject. 
 Each Global Note shall
represent such principal amount of the outstanding Notes as shall be specified therein and shall provide that it shall represent the aggregate principal amount of outstanding Notes from time to time endorsed thereon and that the aggregate principal
amount of outstanding Notes represented thereby may from time to time be increased or reduced to reflect redemptions, repurchases, cancellations, conversions, transfers or exchanges permitted hereby. Any endorsement of a Global Note to reflect the
amount of any increase or decrease in the amount of outstanding Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in such manner and upon written instructions given by the Holder of such Notes
in accordance with this Indenture. Payment of principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the Holder of such Note on the date
of payment, unless a record date or other means of determining Holders eligible to receive payment is provided for herein. 

Section 2.03    Date and Denomination of Notes; Payments of Interest and Defaulted Amounts. (a) The Notes
shall be issuable in registered form without coupons in minimum denominations of $1,000 principal amount and in integral multiples thereof. Each Note shall be dated the date of its authentication and shall bear interest from the date specified on
the face of the form of Note attached as Exhibit A hereto. Accrued interest on the Notes shall be computed on the basis of a 360-day year composed of twelve 30-day
months and, for partial months, on the basis of actual days elapsed over a 30-day month. 

(b)    The Person in whose name any Note (or its Predecessor Note) is registered on the Note Register at the close of
business on any Regular Record Date with respect to any Interest Payment Date shall be entitled to receive the interest payable on such Interest Payment Date. Interest shall be payable at the office or agency of the Company maintained by the Company
for such purposes, which shall initially be the Corporate Trust Office, or any other office so designated by the Trustee. The Company shall pay, or cause the Paying Agent to pay, interest (i) on any Physical Notes (A) to Holders holding
Physical Notes having an aggregate principal amount of $5,000,000 or less, by check mailed to the Holders of these Notes at their address as it appears in the Note Register and (B) to Holders holding Physical Notes having an aggregate principal
amount of more than $5,000,000, either by check mailed to such Holders or, upon application by such a Holder to the Note Registrar not later than the relevant Regular Record Date, by wire transfer in immediately available funds to that Holder’s
account within the United 

  
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States, which application shall remain in effect until the Holder notifies, in writing, the Note Registrar to the contrary or (ii) on any Global Note by wire transfer of immediately
available funds to the account of the Depositary or its nominee. 
 (c)    Any Defaulted Amounts shall forthwith cease
to be payable to the Holder on the relevant payment date but shall accrue interest per annum at the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, such relevant payment date to, but
excluding, the date on which such Defaulted Amounts together with such interest thereon shall be paid by the Company, at its election in each case, as provided in clause (i) or (ii) below: 

(i)    The Company may elect to make payment of any Defaulted Amounts to the Persons in whose names the Notes (or their
respective Predecessor Notes) are registered at the close of business on a special record date for the payment of such Defaulted Amounts, which shall be fixed in the following manner. The Company shall notify the Trustee in writing of the amount of
the Defaulted Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not less than 25 days after the receipt by the Trustee of such notice, unless the Trustee shall consent in writing to an earlier date), and
at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or shall make arrangements satisfactory to the Trustee for such deposit on or prior to the
date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Amounts as in this clause provided. Thereupon the Company shall fix a special record date for the payment of such
Defaulted Amounts which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of the proposed payment. The Company shall promptly
notify the Trustee in writing of such special record date and the Trustee, in the name and at the expense of the Company, shall cause notice of the proposed payment of such Defaulted Amounts and the special record date therefor to be mailed,
first-class postage prepaid, to each Holder at its address as it appears in the Note Register, not less than 10 days prior to such special record date. Notice of the proposed payment of such Defaulted Amounts and the special record date therefor
having been so mailed, such Defaulted Amounts shall be paid to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on such special record date and shall no longer be payable pursuant
to the following clause (ii) of this Section 2.03(c). 
 (ii)    The Company may make payment of any Defaulted
Amounts in any other lawful manner not inconsistent with the requirements of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, and upon such notice as may be required by such exchange
or automated quotation system, if, after written notice given by the Company to the Trustee of the proposed payment pursuant to this clause, such manner of payment shall be deemed practicable by the Trustee. 

Section 2.04    Execution, Authentication and Delivery of Notes. The Notes shall be signed in the name and on
behalf of the Company by the manual or facsimile signature of its Chief Executive Officer, President, Chief Financial Officer, Treasurer, Secretary or any of its Executive or Senior Vice Presidents. 

  
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 At any time and from time to time after the execution and delivery of this Indenture, the Company
may deliver Notes executed by the Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Notes, and the Trustee in accordance with such Company Order shall authenticate and deliver such
Notes, without any further action by the Company hereunder. 
 Only such Notes as shall bear thereon a certificate of authentication
substantially in the form set forth on the form of Note attached as Exhibit A hereto, executed manually by an authorized signatory of the Trustee (or an authenticating agent appointed by the Trustee as provided by Section 16.10), shall be
entitled to the benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the Trustee (or such an authenticating agent) upon any Note executed by the Company shall be conclusive evidence that the Note so authenticated
has been duly authenticated and delivered hereunder and that the Holder is entitled to the benefits of this Indenture. 
 In case any
Officer of the Company who shall have signed any of the Notes shall cease to be such Officer before the Notes so signed shall have been authenticated and delivered by the Trustee, or disposed of by the Company, such Notes nevertheless may be
authenticated and delivered or disposed of as though the Person who signed such Notes had not ceased to be such Officer of the Company; and any Note may be signed on behalf of the Company by such Persons as, at the actual date of the execution of
such Note, shall be the Officers of the Company, although at the date of the execution of this Indenture any such Person was not such an Officer. 

Section 2.05    Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary.
(a) The Company shall cause to be kept at the Corporate Trust Office a register (the register maintained in such office or in any other office or agency of the Company designated pursuant to Section 4.02, the “Note
Register”) in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration of Notes and of transfers of Notes. Such register shall be in written form or in any form capable of being
converted into written form within a reasonable period of time. The Trustee is hereby initially appointed the “Note Registrar” for the purpose of registering Notes and transfers of Notes as herein provided. The Company may appoint
one or more co-Note Registrars in accordance with Section 4.02. 
 Upon surrender for
registration of transfer of any Note to the Note Registrar or any co-Note Registrar, and satisfaction of the requirements for such transfer set forth in this Section 2.05, the Company shall execute, and
the Trustee shall authenticate and deliver, in the name of the designated transferee or transferees, one or more new Notes of any authorized denominations and of a like aggregate principal amount and bearing such restrictive legends as may be
required by this Indenture. 
 Notes may be exchanged for other Notes of any authorized denominations and of a like aggregate principal
amount, upon surrender of the Notes to be exchanged at any such office or agency maintained by the Company pursuant to Section 4.02. Whenever any Notes are so surrendered for exchange, the Company shall execute, and the Trustee shall
authenticate and deliver, the Notes that the Holder making the exchange is entitled to receive, bearing registration numbers not contemporaneously outstanding. 

  
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 All Notes presented or surrendered for registration of transfer or for exchange, redemption,
repurchase or conversion shall (if so required by the Company, the Trustee, the Note Registrar or any co-Note Registrar) be duly endorsed, or be accompanied by a written instrument or instruments of transfer
in form satisfactory to the Company and duly executed, by the Holder thereof or its attorney-in-fact duly authorized in writing. 

No service charge shall be imposed by the Company, the Trustee, the Note Registrar, any co-Note
Registrar or any Paying Agent for any exchange or registration of transfer of Notes, but the Company or the Trustee may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or transfer tax or other similar
governmental charge required by law or permitted pursuant to Section 13.02(d) or Section 13.02(e). 
 None of the Company, the Trustee, the
Note Registrar or any co-Note Registrar shall be required to exchange or register a transfer of (i) any Notes surrendered for conversion or, if a portion of any Note is surrendered for conversion, such
portion thereof surrendered for conversion or (ii) any Notes, or a portion of any Note, surrendered for repurchase (and not withdrawn) in accordance with Article XIV or called for redemption pursuant to Article XV. 

All Notes issued upon any registration of transfer or exchange of Notes in accordance with this Indenture shall be the valid and binding
obligations of the Company, evidencing the same debt, and entitled to the same benefits under this Indenture as the Notes surrendered upon such registration of transfer or exchange. 

(b)    So long as the Notes are eligible for book-entry settlement with the Depositary, unless otherwise required by law,
subject to the seventh paragraph from the end of Section 2.05(c) all Notes shall be represented by one or more Notes in global form (each, a “Global Note”) registered in the name of the Depositary or a nominee of the Depositary. The
transfer and exchange of beneficial interests in a Global Note that does not involve the issuance of a Physical Note shall be effected through the Depositary (but not the Trustee or the Custodian) in accordance with this Indenture (including the
restrictions on transfer set forth herein) and the procedures of the Depositary therefor. 
 (c)    Every Note that
bears or is required under this Section 2.05(c) to bear the legend set forth in this Section 2.05(c) (together with any Common Stock issued upon conversion of the Notes and required to bear the legend set forth in Section 2.05(d), collectively, the
“Restricted Securities”) shall be subject to the restrictions on transfer set forth in this Section 2.05(c) (including those contained in the legend set forth below), unless such restrictions on transfer shall be eliminated or
otherwise waived by written consent of the Company with written notice to the Trustee as provided below. The Holder of each such Restricted Security, by such Holder’s acceptance thereof, agrees to be bound by all such restrictions on transfer.
As used in this Section 2.05(c) and Section 2.05(d), the term “transfer” encompasses any sale, pledge, transfer or other disposition whatsoever of any Restricted Security. 

Until the Resale Restriction Termination Date, any certificate evidencing a Note (and all securities issued in exchange therefor or
substitution thereof, other than Common Stock, if any, issued upon conversion thereof which shall bear the legend set forth in Section 2.05(d), if applicable) shall bear a legend in substantially the following form (unless such Notes have been


  
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transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such transfer, or sold
pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, or unless otherwise agreed by the Company in writing, with notice thereof to the Trustee): 

THE SALE OF THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND,
ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION DATE (AS DEFINED BELOW), THIS NOTE AND ANY SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE (AND ANY BENEFICIAL INTEREST HEREIN OR THEREIN) MAY NOT BE OFFERED, RESOLD OR OTHERWISE
TRANSFERRED, EXCEPT: 
  

	 	(A)	TO THE COMPANY OR ANY OF ITS SUBSIDIARIES; 

  

	 	(B)	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT; 

  

	 	(C)	TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT; OR 


 

	 	(D)	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT). 


THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR AFTER THE LAST ORIGINAL ISSUANCE DATE
OF THE NOTES; AND (B) ON WHICH THE COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY IN ACCORDANCE WITH THE PROCEDURES DESCRIBED IN THE INDENTURE. 

PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSES (C) AND (D), THE COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE
DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS (WITH RESPECT TO CLAUSE (D) ONLY) OR OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A TRANSACTION
NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 DURING THE PERIOD ENDING ONE YEAR AFTER THE LAST DATE OF ORIGINAL
ISSUANCE OF THE NOTES, NO “AFFILIATE” (AS DEFINED IN RULE 144) WILL BE PERMITTED TO RESELL ANY OF THE NOTES THAT CONSTITUTE “RESTRICTED SECURITIES” UNDER RULE 144 THAT HAVE BEEN REACQUIRED BY ANY OF THEM. 

  
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 No transfer of any Note prior to the Resale Restriction Termination Date will be registered by
the Note Registrar unless the applicable box on the Form of Assignment and Transfer has been checked. 
 Any Note (or security issued in
exchange or substitution therefor) as to which such restrictions on transfer shall have expired in accordance with their terms may, upon surrender of such Note for exchange to the Note Registrar in accordance with the provisions of this
Section 2.05, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall not bear the restrictive legend required by this Section 2.05(c) and shall be assigned an unrestricted CUSIP number. The Company shall
be entitled to instruct the Custodian in writing to so surrender any Global Note as to which such restrictions on transfer shall have expired in accordance with their terms for exchange, and, upon such instruction, the Custodian shall so surrender
such Global Note for exchange; and any new Global Note so exchanged therefor shall not bear the restrictive legend specified in this Section 2.05(c) and shall be assigned an unrestricted CUSIP number. The Company shall promptly notify the Trustee in
writing upon the occurrence of the Resale Restriction Termination Date. Upon such notice, the legend set forth above shall be deemed removed from the Note, with no further action required by the Company, the Trustee, or, if applicable, the
Depositary, it being understood that the Depositary may require a mandatory exchange or other process to cause such Global Note to be identified by an unrestricted CUSIP number in the facilities of such Depositary (in which case, for purposes of
Section 4.06(e), such Global Note will not be deemed to be assigned an unrestricted CUSIP number un such time as such mandatory exchange or other process is effected). The Company shall promptly notify the Trustee and the Holders in writing after a
registration statement, if any, with respect to the Notes or any Common Stock issued upon conversion of the Notes has been declared effective under the Securities Act. 

Notwithstanding any other provisions of this Indenture (other than the provisions set forth in this Section 2.05(c)), a Global Note may not be
transferred as a whole or in part except (i) by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another nominee of the Depositary or by the Depositary or any such nominee to a successor
Depositary or a nominee of such successor Depositary and (ii) for transfers of portions of a Global Note in certificated form made upon request of a member of, or a participant in, the Depositary (for itself or on behalf of a beneficial owner)
by written notice given to the Trustee by or on behalf of the Depositary in accordance with customary procedures of the Depositary and in compliance with this Section 2.05(c). 

The Depositary shall be a clearing agency registered under the Exchange Act. The Company initially appoints DTC to act as Depositary with
respect to each Global Note. Initially, each Global Note shall be issued to the Depositary, registered in the name of Cede & Co., as the nominee of the Depositary, and deposited with the Trustee as Custodian for Cede & Co. 

Without limiting the foregoing, the Trustee will be entitled to receive an instruction letter from the Company before taking any action with
respect to effecting any such mandatory exchange or other process. 
 If (i) the Depositary notifies the Company at any time that the
Depositary is unwilling or unable to continue as depositary for the Global Notes and a successor depositary is not appointed 

  
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within 90 days, (ii) the Depositary ceases to be registered as a clearing agency under the Exchange Act and a successor depositary is not appointed within 90 days, (iii) an Event of
Default with respect to the Notes has occurred and is continuing and a beneficial owner of any Note requests that its beneficial interest therein be issued as a Physical Note or (iv) the Company and a beneficial owner of any Note so agree, the
Company shall execute, and the Trustee, upon receipt of an Officer’s Certificate and a Company Order for the authentication and delivery of Notes, shall authenticate and deliver (x) in the case of clause (iii) or (iv), a Physical Note
to such beneficial owner in a principal amount equal to the principal amount of such Note corresponding such beneficial owner’s beneficial interest and (y) in the case of clause (i) or (ii), Physical Notes to each beneficial owner of
the related Global Notes (or a portion thereof) in an aggregate principal amount equal to the aggregate principal amount of such Global Notes in exchange for such Global Notes, and upon delivery of the Global Notes to the Trustee such Global Notes
shall be canceled. 
 Physical Notes issued in exchange for all or a part of the Global Note pursuant to this Section 2.05(c) shall be
registered in such names and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the Trustee. Upon execution and authentication, the Trustee shall deliver
such Physical Notes to the Persons in whose names such Physical Notes are so registered. 
 At such time as all interests in a Global Note
have been converted, canceled, redeemed, repurchased or transferred, such Global Note shall be, upon receipt thereof, canceled by the Trustee in accordance with its customary procedures. At any time prior to such cancellation, if any interest in a
Global Note is exchanged for Physical Notes, converted, canceled, redeemed, repurchased or transferred to a transferee who receives Physical Notes therefor or any Physical Note is exchanged or transferred for part of such Global Note, the principal
amount of such Global Note shall, in accordance with the Trustee’s customary procedures, be appropriately reduced or increased, as the case may be, and an endorsement shall be made on the Schedule of Exchanges of such Global Note, by the
Trustee or the Custodian, at the direction of the Trustee, to reflect such reduction or increase. 
 The Trustee shall have no obligation or
duty to monitor, determine or inquire as to compliance with any restrictions on transfer imposed under this Indenture or under applicable law with respect to any transfer of any interest in any Note (including any transfers between or among
Depositary participants or beneficial owners of interests in any Global Note) other than to require delivery of such certificates as are expressly required by, and to do so if and when expressly required by the terms of, this Indenture, and to
examine the same to determine substantial compliance as to form with the express requirements hereof. 
 Neither the Trustee nor any agent
of the Trustee shall have any responsibility or liability for any actions taken or not taken by the Depositary. 
 Neither the Company, the
Trustee nor any agent of the Company or the Trustee shall have any responsibility or liability for any aspect of the records relating to or payments made on account of beneficial ownership interests of a Global Note or maintaining, supervising or
reviewing any records relating to such beneficial ownership interests. 

  
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 The Trustee shall have the right to decline to authenticate and deliver any Notes under this
Section if the Trustee, being advised by counsel, determines that such action may not lawfully be taken or if the Trustee in good faith shall determine that such action would expose the Trustee to personal liability to existing Holders. 

(d)    Until the Resale Restriction Termination Date, any stock certificate representing Common Stock issued upon
conversion of such Note shall bear a legend in substantially the following form (unless the Note or such Common Stock has been transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and
that continues to be effective at the time of such transfer, or pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, or such Common Stock has been issued upon conversion of
Notes that have been transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such transfer, or pursuant to the exemption from registration
provided by Rule 144 or any similar provision then in force under the Securities Act, or unless otherwise agreed by the Company with written notice thereof to the Trustee and any transfer agent for the Common Stock): 

THE SALE OF THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND
ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION DATE (AS DEFINED BELOW), THIS SECURITY (AND ANY BENEFICIAL INTEREST HEREIN) MAY NOT BE OFFERED, RESOLD, OR OTHERWISE TRANSFERRED, EXCEPT: 

 

	 	(A)	TO THE COMPANY OR ANY OF THEIR RESPECTIVE SUBSIDIARIES; 

  

	 	(B)	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT; OR 

  

	 	(C)	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT). 


THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR AFTER THE LAST ORIGINAL ISSUANCE DATE
OF THE COMPANY’S 3.50% CONVERTIBLE SENIOR NOTES DUE 2023; AND (B) ON WHICH THE COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY, IN ACCORDANCE WITH THE PROCEDURES DESCRIBED IN THE INDENTURE FOR THE NOTES. 

PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSE (C), THE COMPANY AND THE TRANSFER AGENT RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF
SUCH CERTIFICATIONS, LEGAL OPINIONS OR OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO AN EXEMPTION FROM, OR IN A 

  
 20 








 
TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

DURING THE PERIOD ENDING ONE YEAR AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE NOTES, NO “AFFILIATE” (AS DEFINED IN RULE 144)
WILL BE PERMITTED TO RESELL ANY SHARES OF COMMON STOCK ISSUED UPON CONVERSION OF THE NOTES THAT CONSTITUTE “RESTRICTED SECURITIES” UNDER RULE 144 THAT HAVE BEEN REACQUIRED BY ANY OF THEM. 

Any such Common Stock as to which such restrictions on transfer shall have expired in accordance with their terms may, upon surrender of the certificates
representing such shares of Common Stock for exchange in accordance with the procedures of the transfer agent for the Common Stock, be exchanged for a new certificate or certificates for a like aggregate number of shares of Common Stock, which shall
not bear the restrictive legend required by this Section 2.05(d). 
 (e)    The Company shall not, and shall not permit
any of its controlled “affiliates” (as defined in Rule 144) to, resell any of the Notes or any shares of Common Stock issued upon conversion of any Note that constitute “restricted securities” under Rule 144 that have been
reacquired by the Company or any of them, unless such Note is registered under the Securities Act or resold pursuant to an exemption from the registration requirements of the Securities Act in a transaction that results in such Note no longer being
“restricted securities” under Rule 144. 
 Section 2.06    Mutilated, Destroyed, Lost or Stolen
Notes. In case any Note shall become mutilated or be destroyed, lost or stolen, the Company in its discretion may execute, and upon its written request in a Company Order, the Trustee or an authenticating agent appointed by the Trustee shall
authenticate and deliver a new Note, bearing a registration number not contemporaneously outstanding, in exchange and substitution for the mutilated Note, or in lieu of and in substitution for the Note so destroyed, lost or stolen. In every case the
applicant for a substituted Note shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them harmless from any loss, liability, cost or
expense caused by or connected with such substitution, and, in every case of destruction, loss or theft, the applicant shall also furnish to the Company, to the Trustee and, if applicable, to such authenticating agent evidence to their satisfaction
of the destruction, loss or theft of such Note and of the ownership thereof. 
 The Trustee or such authenticating agent may authenticate
any such substituted Note and deliver the same upon the receipt of such security or indemnity as the Trustee, the Company and, if applicable, such authenticating agent may require. No service charge shall be imposed by the Company, the Trustee, the
Note Registrar or any co-Note Registrar for any exchange or registration of transfer of any substitute Note, but, upon the issuance of any substitute Note, the Company or the Trustee may require the payment by
the Holder of a sum sufficient to cover any tax, assessment or other governmental charge that may be imposed in relation thereto and any other expenses connected therewith. In case any Note that has matured or is about to mature or has been
surrendered for redemption or required repurchase or is about to be converted in accordance with Article XIII shall become mutilated or be destroyed, lost or stolen, the Company may, in its sole discretion, instead of issuing a substitute Note, pay
or authorize the payment of 

  
 21 








 
or convert or authorize the conversion of the same (without surrender thereof except in the case of a mutilated Note), as the case may be, if the applicant for such payment or conversion shall
furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them harmless for any loss, liability, cost or expense caused by or connected with such
substitution, and, in every case of destruction, loss or theft, evidence satisfactory to the Company, the Trustee and, if applicable, any Paying Agent or Conversion Agent of the destruction, loss or theft of such Note and of the ownership thereof.

 Every substitute Note issued pursuant to the provisions of this Section 2.06 by virtue of the fact that any Note is destroyed, lost
or stolen shall constitute an additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Note shall be found at any time, and shall be entitled to all the benefits of (but shall be subject to all the limitations
set forth in) this Indenture equally and proportionately with any and all other Notes duly issued hereunder. To the extent permitted by law, all Notes shall be held and owned upon the express condition that the foregoing provisions are exclusive
with respect to the replacement or payment or conversion, redemption or repurchase of mutilated, destroyed, lost or stolen Notes and shall preclude any and all other rights or remedies notwithstanding any law or statute existing or hereafter enacted
to the contrary with respect to the replacement or payment or conversion of negotiable instruments or other securities without their surrender. 

Section 2.07    Temporary Notes. Pending the preparation of Physical Notes, the Company may execute and the
Trustee or an authenticating agent appointed by the Trustee shall, upon written request of the Company in a Company Order, authenticate and deliver temporary Notes (printed or lithographed). Temporary Notes shall be issuable in any authorized
denomination, and substantially in the form of the Physical Notes but with such omissions, insertions and variations as may be appropriate for temporary Notes, all as may be determined by the Company. Every such temporary Note shall be executed by
the Company and authenticated by the Trustee or such authenticating agent upon the same conditions and in substantially the same manner, and with the same effect, as the Physical Notes. Without unreasonable delay, the Company shall execute and
deliver to the Trustee or such authenticating agent Physical Notes (other than any Global Note) and thereupon any or all temporary Notes (other than any Global Note) may be surrendered in exchange therefor, at each office or agency maintained by the
Company pursuant to Section 4.02 and the Trustee or such authenticating agent shall authenticate and deliver in exchange for such temporary Notes an equal aggregate principal amount of Physical Notes. Such exchange shall be made by the Company
at its own expense and without any charge therefor. Until so exchanged, the temporary Notes shall in all respects be entitled to the same benefits and subject to the same limitations under this Indenture as Physical Notes authenticated and delivered
hereunder. 
 Section 2.08    Cancellation of Notes Paid, Converted, Etc. The Company shall cause all
Notes surrendered for the purpose of payment, redemption, repurchase, registration of transfer or exchange or conversion, if surrendered to the Company or the Company’s agents, Subsidiaries or Affiliates, to be surrendered to the Trustee for
cancellation. All Notes delivered to the Trustee shall be canceled promptly by it, and no Notes shall be authenticated in exchange thereof except as expressly permitted by any of the provisions of this Indenture. The Trustee shall dispose of
canceled Notes in accordance with its customary procedures and, after such disposition, shall 

  
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deliver a certificate of such disposition to the Company upon the written request of the Company. If the Company shall acquire any of the Notes, such acquisition shall not operate as a
redemption, repurchase or satisfaction of the indebtedness represented by such Notes unless and until the same are delivered to the Trustee for cancellation. 

Section 2.09    CUSIP Numbers. The Company in issuing the Notes may use “CUSIP” numbers (if then
generally in use), and, if so, the Trustee shall use “CUSIP” numbers in all notices issued to Holders as a convenience to such Holders; provided that any such notice may state that no representation is made as to the correctness of such
numbers either as printed on the Notes or on such notice and that reliance may be placed only on the other identification numbers printed on the Notes, and any such redemption shall not be affected by any defect in or omission of such numbers. The
Company shall promptly notify the Trustee in writing of any change in the “CUSIP” numbers. 

Section 2.10    Additional Notes; Repurchases. The Company may, without the consent of the Holders and
notwithstanding Section 2.01, reopen this Indenture and issue additional Notes hereunder with the same terms (except, to the extent applicable, with respect to the date as of which interest begins to accrue on such additional Notes and the
first Interest Payment Date and the “last date of original issuance” such additional Notes for purposes of Section 4.06(d), Section 4.06(e) or otherwise) and with the same CUSIP number as the Notes initially issued hereunder in an
unlimited aggregate principal amount; provided that if any such additional Notes are not fungible with the Notes initially issued hereunder for U.S. federal income tax or federal securities laws purposes, such additional Notes shall have a separate
CUSIP number. Prior to the issuance of any such additional Notes, the Company shall deliver to the Trustee a Company Order, an Officer’s Certificate and an Opinion of Counsel, such Officer’s Certificate and Opinion of Counsel to cover such
matters required by Section 16.05, and such Opinion of Counsel to include a customary legal opinion as to the enforceability under New York law of such additional Notes, which opinion may contain customary exceptions and qualifications. In
addition, the Company may, to the extent permitted by law, and directly or indirectly (regardless of whether such Notes are surrendered to the Company), repurchase Notes in the open market or otherwise, whether by the Company or its Subsidiaries or
through a private or public tender or exchange offer or through counterparties to private agreements, including by cash-settled swaps or other derivatives. The Company shall cause any Notes so repurchased (other than Notes repurchased pursuant to
cash-settled swaps or other derivatives) to be surrendered to the Trustee for cancellation in accordance with Section 2.08. 
 ARTICLE
III 
 SATISFACTION AND DISCHARGE 

Section 3.01    Satisfaction and Discharge. This Indenture shall, upon request of the Company contained in an
Officer’s Certificate cease to be of further effect, and the Trustee, at the expense and written request of the Company, shall execute proper instruments acknowledging satisfaction and discharge of this Indenture, when (a) (i) all Notes
theretofore authenticated and delivered (other than (x) Notes which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 2.06 and (y) Notes for whose payment money has theretofore been
deposited in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 

  
 23 








 
4.04(d)) have been delivered to the Trustee for cancellation; or (ii) after the Notes have become due and payable, whether at the Maturity Date, any Redemption Date or Fundamental Change
Repurchase Date, upon conversion or otherwise, the Company has deposited with the Trustee cash (or other consideration due upon conversion to satisfy the Company’s Conversion Obligation, if applicable) sufficient to pay all of the outstanding
Notes and all other sums due and payable under this Indenture by the Company; and (b) the Company has delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided
for relating to the satisfaction and discharge of this Indenture have been complied with. Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.06 shall survive. 

ARTICLE IV 
 PARTICULAR COVENANTS
OF THE COMPANY 
 Section 4.01    Payment of Principal and Interest. The Company covenants and agrees that
it will cause to be paid the principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, each of the Notes at the places, at the respective times and in the manner provided
herein and in the Notes. 
 Notwithstanding anything to the contrary contained in this Indenture, the Company may, to the extent it is
required to do so by law, deduct or withhold income or other similar taxes imposed by the United States of America from principal, premium or interest (including any Additional Interest) payments hereunder. 

Section 4.02    Maintenance of Office or Agency. An office will be maintained on behalf of the Company in
Atlanta, GA, or any other office located in the United States of America so designated by the Trustee, where the Notes may be surrendered for registration of transfer or exchange or for presentation for payment, redemption or repurchase
(“Paying Agent”) or for conversion (“Conversion Agent”) and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be made. The Company will give prompt written notice to the
Trustee of the location, and any change in the location, of such office or agency. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such
presentations, surrenders, notices and demands may be made at the Corporate Trust Office or any other office located in the United States of America so designated by the Trustee as a place where Notes may be presented for payment or for registration
of transfer. 
 The Company may also from time to time designate as co-Note Registrars one or more
other offices or agencies located in the United States of America where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations; provided that no such designation or
rescission shall in any manner relieve the Trustee of its obligation to maintain an office in the United States of America as a place for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission
and of any change in the location of any such other office or agency. The terms “Paying Agent” and “Conversion Agent” include any such additional or other offices or agencies, as applicable. 

  
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 The Company hereby initially designates the Trustee as the Paying Agent, Note Registrar,
Custodian and Conversion Agent and the Corporate Trust Office as one such office or agency of the Company for each of the aforesaid purposes. 

Section 4.03    Appointments to Fill Vacancies in Trustee’s Office. The Company, whenever
necessary to avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 7.08, a Trustee, so that there shall at all times be a Trustee hereunder. 

Section 4.04    Provisions as to Paying Agent. (a) If the Company shall appoint a Paying Agent other than
the Trustee, the Company will cause such Paying Agent to execute and deliver to the Trustee an instrument in which such agent shall agree with the Trustee, subject to the provisions of this Section 4.04: 

(i)    that it will hold all sums held by it as such agent for the payment of the principal (including the Redemption
Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes in trust for the benefit of the Holders of the Notes; 

(ii)    that it will give the Trustee prompt written notice of any failure by the Company to make any payment of the
principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes when the same shall be due and payable; and 

(iii)    that at any time during the continuance of an Event of Default, upon request of the Trustee, it will forthwith
pay to the Trustee all sums so held in trust. 
 The Company shall, on or before each due date of the principal (including the Redemption
Price or Fundamental Change Repurchase Price, if applicable) of, or accrued and unpaid interest on, the Notes, deposit with the Paying Agent a sum sufficient to pay such principal (including the Redemption Price or Fundamental Change Repurchase
Price, if applicable) or accrued and unpaid interest, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee in writing of any failure to take such action; provided that if such deposit is made on the due
date, such deposit must be received by the Paying Agent by 11:00 a.m., New York City time, on such date. 
 (b)    If
the Company shall act as its own Paying Agent, it will, on or before each due date of the principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on, the Notes, set aside,
segregate and hold in trust for the benefit of the Holders of the Notes a sum sufficient to pay such principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) and accrued and unpaid interest so becoming due and
will promptly notify the Trustee in writing of any failure to take such action and of any failure by the Company to make any payment of the principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, or
accrued and unpaid interest on, the Notes when the same shall become due and payable. 
 (c)    Anything in this
Section 4.04 to the contrary notwithstanding, the Company may, at any time, for the purpose of obtaining a satisfaction and discharge of this Indenture, or for any other reason, pay, cause to be paid or deliver to the Trustee all sums or
amounts held in trust by 

  
 25 








 
the Company or any Paying Agent hereunder as required by this Section 4.04, such sums or amounts to be held by the Trustee upon the trusts herein contained and upon such payment or delivery
by the Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from all further liability but only with respect to such sums or amounts. 

(d)    Subject to applicable law, any money and shares of Common Stock deposited with the Trustee or any Paying Agent, or
then held by the Company, in trust for the payment of the principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, and accrued and unpaid interest on and the consideration due upon conversion of, any Note
and remaining unclaimed for two years after such principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable), interest or consideration due upon conversion has become due and payable shall be paid to the Company
on request of the Company contained in an Officer’s Certificate, or (if then held by the Company) shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Company for
payment thereof, and all liability of the Trustee or such Paying Agent with respect to such trust money and shares of Common Stock, and all liability of the Company as trustee thereof, shall thereupon cease. 

Section 4.05    Existence. Subject to Article XI, the Company shall do or cause to be done all things
necessary to preserve and keep in full force and effect its corporate existence. 
 Section 4.06    Rule 144A
Information Requirement and Annual Reports. (a) At any time the Company is not subject to Sections 13 or 15(d) of the Exchange Act, the Company shall, so long as any of the Notes (or any shares of Common Stock issuable upon conversion
thereof) shall, at such time, constitute “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act, upon written request, provide to the Trustee, any Holder, beneficial owner or prospective purchaser of such
Notes or shares of Common Stock, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of such Notes pursuant to Rule 144A under the Securities Act. 

(b)    The Company shall file with the Trustee within 15 days after the same are required to be filed with the Commission
(taking into account any applicable grace periods provided thereunder), copies of any documents or reports that the Company is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act (excluding any such
information, documents or reports, or portions thereof, subject to confidential treatment and any correspondence with the Commission). Any such document or report that the Company files with the Commission via the Commission’s EDGAR system
shall be deemed to be filed with the Trustee for purposes of this Section 4.06(b) at the time such documents are filed via the EDGAR system, it being understood that the Trustee shall not be responsible for determining whether such filings have been
made. 
 (c)    Delivery of the reports and documents described in subsection (b) above to the Trustee is for
informational purposes only, and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of
its covenants hereunder (as to which the Trustee is entitled to conclusively rely on an Officer’s Certificate). 

  
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 (d)    If, at any time during the
six-month period beginning on, and including, the date that is six months after the last date of original issuance of the Notes offered pursuant to the applicable Offering Memorandum, the Company fails to
timely file any document or report that it is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after giving effect to all applicable grace periods thereunder and other than reports on Form
8-K), or such Notes are not otherwise freely tradable by Holders other than Persons that are, or were at any time during the preceding three months, the Company’s Affiliates (as a result of restrictions
pursuant to U.S. securities law or the terms of this Indenture or such Notes), the Company shall pay Additional Interest on such Notes. Such Additional Interest shall accrue on such Notes at the rate of 0.50% per annum of the principal amount of
such Notes outstanding for each day during such period for which the Company’s failure to file has occurred and is continuing or such Notes are not freely tradable as described above. As used in this Section 4.06(d), documents or reports that
the Company is required to “file” with the Commission pursuant to Section 13 or 15(d) of the Exchange Act do not include documents or reports that the Company furnishes to the Commission pursuant to Section 13 or 15(d) of the
Exchange Act. 
 (e)    If, and for so long as, the restrictive legend on the Notes offered pursuant to the applicable
Offering Memorandum specified in Section 2.05(c) has not been removed (or deemed removed pursuant to this Indenture), such Notes are assigned a restricted CUSIP number or such Notes are not otherwise freely tradable by Holders other than Persons
that are, or were at any time during the preceding three months, the Company’s Affiliates (without restrictions pursuant to U.S. securities law or the terms of this Indenture or the Notes) as of the 380th day after the last date of original
issuance of such Notes, the Company shall pay Additional Interest on such Notes at a rate equal to 0.50% per annum on the principal amount of such Notes outstanding until the restrictive legend on such Notes has been removed in accordance with
Section 2.05(c), such Notes are assigned an unrestricted CUSIP number and such Notes are freely tradable as provided above. 

(f)    Notwithstanding the foregoing, no Additional Interest will accrue on any Note or be payable under Section 4.06(e)
on any date on which (i) (w) the Company has filed a Shelf Registration Statement for the resale of the Notes and any shares of Common Stock issuable upon conversion of such Notes, (x) such Shelf Registration Statement is effective and
usable by Holders identified therein as selling security Holders for the resale of such Notes and any shares of Common Stock issued upon exchange of such Notes, (y) the Holders may register the resale of such Notes held by them under such Shelf
Registration Statement on terms customary for the resale of convertible or exchangeable securities offered in reliance on Rule 144A, and (z) such Notes and/or shares of Common Stock sold pursuant to such Shelf Registration Statement become
freely tradable as a result of such sale; or (ii) after the Company has complied with the requirements set forth in clause (i) above for a period of two years, no further Additional Interest shall be payable under Section 4.06(e). The
restrictive legend on the notes shall be deemed removed pursuant to the terms of this Indenture as provided in Section 2.05(c), and, at such time, the Notes will, pursuant to and subject to the provisions of, such Section 2.05(c), be deemed assigned
an unrestricted CUSIP number. However, for the avoidance of doubt, Global Notes will continue to bear Additional Interest pursuant to this paragraph until such time as they are identified by an unrestricted CUSIP in the facilities of the Depositary
therefor, whether as a result of completion of such Depositary’s mandatory exchange process or otherwise. 

  
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 (g)    Additional Interest will be payable in arrears on each Interest
Payment Date following accrual in the same manner as regular interest on the Notes. 
 (h)    The Additional Interest
that is payable in accordance with Section 4.06(d) or Section 4.06(e) shall be in addition to, and not in lieu of, any Additional Interest that may be payable as a result of the Company’s election pursuant to Section 6.03. Notwithstanding
the foregoing, in no event shall Additional Interest accrue under the terms of this Indenture (aggregating any Additional Interest payable pursuant to Section 4.06(d) or Section 4.06(e) with any Additional Interest payable pursuant to
Section 6.03) at a rate in excess of 0.50% per annum, regardless of the number of events or circumstances giving rise to the requirement to pay such Additional Interest. 

(i)    If Additional Interest is payable by the Company pursuant to Section 4.06(d) or Section 4.06(e), the Company shall
deliver to the Trustee an Officer’s Certificate to that effect stating (i) the amount of such Additional Interest that is payable and (ii) the date on which such Additional Interest is payable. Unless and until a Responsible Officer
of the Trustee receives at the Corporate Trust Office such a certificate, the Trustee may assume without inquiry that no such Additional Interest is payable. If the Company has paid Additional Interest directly to the Persons entitled to it, the
Company shall deliver to the Trustee an Officer’s Certificate setting forth the particulars of such payment. 

(j)    For the avoidance of doubt, in the event additional Notes are issued under this Indenture pursuant to
Section 2.10, for purposes of determining whether Additional Interest shall be payable pursuant to Section 4.06(d) or Section 4.06(e) with respect to any Notes issued under this Indenture, all Notes that do not have the same CUSIP number or
were not offered by the same Offering Memorandum shall be considered separately. 
 Section 4.07    Stay,
Extension and Usury Laws. The Company covenants (to the extent that it may lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law
or other law that would prohibit or forgive the Company from paying all or any portion of the principal of or interest on the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or that may affect the covenants or
the performance of this Indenture; and the Company (to the extent it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the
execution of any power herein granted to the Trustee, but will suffer and permit the execution of every such power as though no such law had been enacted. 

Section 4.08    Compliance Certificate; Statements as to Defaults. The Company shall deliver to the Trustee
within 120 days after the end of each fiscal year of the Company (beginning with the fiscal year ending on December 31, 2017) an Officer’s Certificate stating whether or not the signers thereof have knowledge of any failure by the Company
to comply with all conditions and covenants then required to be performed under this Indenture and, if so, specifying each such failure and the nature thereof. 

In addition, the Company shall deliver to the Trustee, within 30 days after the Company becomes aware of the occurrence of any Event of
Default or Default, an Officer’s Certificate 

  
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setting forth the details of such Event of Default or Default, its status and the action that the Company is taking or proposing to take in respect thereof. 

ARTICLE V 
 LISTS OF HOLDERS AND
REPORTS BY THE COMPANY AND THE TRUSTEE 
 Section 5.01    Lists of Holders. For so long as there are any
Physical Notes, the Company covenants and agrees that it will furnish or cause to be furnished to the Trustee, semi-annually, not more than 15 days after each May 15 and November 15 in each year beginning with November 15, 2017, and
at such other times as the Trustee may request in writing, within 30 days after receipt by the Company of any such request (or such lesser time as the Trustee may reasonably request in order to enable it to timely provide any notice to be provided
by it hereunder), a list in such form as the Trustee may reasonably require of the names and addresses of the Holders as of a date not more than 15 days (or such other date as the Trustee may reasonably request in order to so provide any such
notices) prior to the time such information is furnished, except that no such list need be furnished so long as the Trustee is acting as Note Registrar. 

Section 5.02    Preservation and Disclosure of Lists. The Trustee shall preserve, in as current a form as is
reasonably practicable, all information as to the names and addresses of the Holders contained in the most recent list furnished to it as provided in Section 5.01 or maintained by the Trustee in its capacity as Note Registrar, if so acting. The
Trustee may destroy any list furnished to it as provided in Section 5.01 upon receipt of a new list so furnished. 
 ARTICLE VI 

DEFAULTS AND REMEDIES 

Section 6.01    Events of Default. The following events shall be “Events of Default” with
respect to the Notes: 
 (a)    a default in any payment of interest on any Note when due and payable, and the default
continues for a period of 30 days; 
 (b)    a default in the payment of principal (including the Redemption Price or
Fundamental Change Repurchase Price, if applicable) of any Note when due and payable on the Maturity Date, upon any redemption or required repurchase, upon declaration of acceleration or otherwise; 

(c)    failure by the Company to comply with its obligation to convert the Notes in accordance with this Indenture upon
exercise of a Holder’s conversion right; 
 (d)    failure by the Company to issue a Fundamental Change Company
Notice in accordance with Section 14.01(c) or notice in accordance with Section 13.01(b)(ii) or Section 13.01(b)(iii), in each case when due; 

(e)    failure by the Company to comply with its obligations under Article XI; 

  
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 (f)    failure by the Company for 60 days after written notice to the Company
by the Trustee, or to the Company and the Trustee by the Holders of at least 25% in aggregate principal amount of Notes then outstanding, to comply with any of its other agreements contained in the Notes or this Indenture; 

(g)    default (x) by the Company or any Significant Subsidiary of the Company in the payment when due, after the
expiration of any applicable grace period, of principal of, or premium, if any, or interest on, any indebtedness for money borrowed in the aggregate principal amount then outstanding of $25,000,000 or more, or (y) resulting in the acceleration
of the Company’s or the Company’s Subsidiaries’ indebtedness for money borrowed having an aggregate principal amount of $25,000,000 or more so that it becomes due and payable before the date on which it would otherwise have become due
and payable, if such default is not cured or waived, or such acceleration is not rescinded, as the case may be, within 30 days after written notice to the Company from the Trustee, or to the Company and the Trustee from the Holders of at least 25%
in principal amount of Notes then outstanding in accordance with this Indenture; 
 (h)    a final judgment for the
payment of $25,000,000 or more (excluding any amounts covered by insurance) rendered against the Company or any Significant Subsidiary of the Company, which judgment is not discharged or stayed within 60 days after (i) the date on which the
right to appeal thereof has expired if no such appeal has commenced, or (ii) the date on which all rights to appeal have been extinguished; 

(i)    the Company or any Significant Subsidiary shall commence a voluntary case or other proceeding seeking liquidation,
reorganization or other relief with respect to the Company or any such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver,
liquidator, custodian or other similar official of the Company or any such Significant Subsidiary or any substantial part of its property, or shall consent to any such relief or to the appointment of or taking possession by any such official in an
involuntary case or other proceeding commenced against it, or shall make a general assignment for the benefit of creditors, or shall fail generally to pay its debts as they become due; or 

(j)    an involuntary case or other proceeding shall be commenced against the Company or any Significant Subsidiary
seeking liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee,
receiver, liquidator, custodian or other similar official of the Company or such Significant Subsidiary or any substantial part of its property, and such involuntary case or other proceeding shall remain undismissed and unstayed for a period of 60
consecutive days. 
 Section 6.02    Acceleration; Rescission and Annulment. In case one or more Events of
Default shall have occurred and be continuing (whatever the reason for such Event of Default and whether it shall be voluntary or involuntary or be effected by operation of law or pursuant to any judgment, decree or order of any court or any order,
rule or regulation of any administrative or governmental body), then, and in each and every such case (other than an Event of Default specified in Section 6.01(i) or Section 6.01(j) with respect to the Company and not solely with respect to one or
more Significant Subsidiaries), unless the principal of all of the Notes shall 

  
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have already become due and payable, either the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then outstanding determined in accordance with Section 8.04,
by notice in writing to the Company (and to the Trustee if given by Holders), may declare 100% of the principal of, and accrued and unpaid interest, if any, on, all the Notes to be due and payable immediately, and upon any such declaration the same
shall become and shall automatically be immediately due and payable, anything contained in this Indenture or in the Notes to the contrary notwithstanding. If an Event of Default specified in Section 6.01(i) or Section 6.01(j) with respect to the
Company (and not solely with respect to one or more Significant Subsidiaries) occurs and is continuing, 100% of the principal of, and accrued and unpaid interest, if any, on, all Notes shall become and shall automatically be immediately due and
payable. 
 The immediately preceding paragraph, however, is subject to the conditions that if, at any time after the principal of the Notes
shall have been so declared due and payable, and before any judgment or decree for the payment of the monies due shall have been obtained or entered as hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to
pay installments of accrued and unpaid interest upon all Notes and the principal of any and all Notes that shall have become due otherwise than by acceleration (with interest on overdue installments of accrued and unpaid interest to the extent that
payment of such interest is enforceable under applicable law, and on such principal at the rate borne by the Notes) and amounts due to the Trustee pursuant to Section 7.06, and if (1) rescission would not conflict with any judgment or
decree of a court of competent jurisdiction and (2) any and all existing Events of Default under this Indenture, other than the nonpayment of the principal of and accrued and unpaid interest, if any, on Notes that shall have become due solely
by such acceleration, shall have been cured or waived pursuant to Section 6.09, then and in every such case (except as provided in the immediately succeeding sentence) the Holders of a majority in aggregate principal amount of the Notes then
outstanding, by written notice to the Company and to the Trustee, may waive all Defaults or Events of Default with respect to the Notes and rescind and annul such declaration and its consequences and such Default shall cease to exist, and any Event
of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver or rescission and annulment shall extend to or shall affect any subsequent Default or Event of Default, or shall impair any right
consequent thereon. Notwithstanding anything to the contrary herein, no such waiver or rescission and annulment shall extend to or shall affect any Default or Event of Default resulting from (i) the nonpayment of the principal of, or accrued
and unpaid interest on, any Notes or (ii) a failure to pay or deliver, as the case may be, the consideration due upon conversion of the Notes. 

Section 6.03    Additional Interest in Lieu of Reporting Default. Notwithstanding anything in this Indenture
or in the Notes to the contrary, to the extent the Company elects, the sole remedy for Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.06(b) shall after the occurrence of such an Event
of Default consist exclusively of the right to receive Additional Interest on the Notes at a rate equal to 0.25% per annum of the principal amount of the Notes outstanding for each day during the 365-day
period on which such Event of Default is continuing beginning on, and including, the calendar day on which such an Event of Default first occurs to, but excluding, the 365th day following such Event of Default (or, if earlier, the date on which such
Event of Default is cured or waived as provided for in this Indenture). Additional Interest payable pursuant to this Section 6.03 shall be 

  
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in addition to, not in lieu of, any Additional Interest payable pursuant to Section 4.06(d) or Section 4.06(e). If the Company so elects, such Additional Interest shall be payable in the same
manner and on the same dates as regular interest on the Notes. On the 366th day after such Event of Default (if the Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.06(b) is not cured
or waived prior to such 366th day), the Notes will be subject to acceleration as provided in Section 6.02. In the event the Company does not elect to pay Additional Interest following an Event of Default in accordance with this
Section 6.03, or the Company elects to pay such Additional Interest but the Company, if applicable, does not pay such Additional Interest when due, the Notes shall be immediately subject to acceleration as provided in Section 6.02. 

In order to elect to pay Additional Interest as the sole remedy during the first 365 days after the occurrence of any Event of Default
described in the immediately preceding paragraph, the Company must notify in writing all Holders of the Notes, the Trustee and the Paying Agent of such election prior to the beginning of such 365-day period.
Upon the failure to timely give such notice, the Notes shall be immediately subject to acceleration as provided in Section 6.02. 
 In
no event shall Additional Interest accrue under the terms of this Indenture (aggregating any Additional Interest payable pursuant to this Section 6.03 with any Additional Interest payable pursuant to Section 4.06(d) or Section 4.06(e)) at a
rate in excess of 0.50% per annum, regardless of the number of events or circumstances giving rise to the requirement to pay such Additional Interest. 

The Trustee shall not at any time be under any duty or responsibility to any Holder to determine Additional Interest, or with respect to the
nature, extent or calculation of the amount of Additional Interest owed, or with respect to the method employed in such calculation of Additional Interest. 

Section 6.04    Payments of Notes on Default; Suit Therefor. If an Event of Default described in clause
(a) or (b) of Section 6.01 shall have occurred, the Company shall, upon demand of the Trustee, pay to the Trustee, for the benefit of the Holders of the Notes, the whole amount then due and payable on the Notes for principal and interest,
if any, with interest on any overdue principal and interest, if any, at the rate borne by the Notes at such time, and, in addition thereto, such further amount as shall be sufficient to cover any amounts due to the Trustee under Section 7.06.
If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such
proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon the Notes and collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any
other obligor upon the Notes, wherever situated. 
 In the event there shall be pending proceedings for the bankruptcy or for the
reorganization of the Company or any other obligor on the Notes under Title 11 of the United States Code, or any other applicable law, or in case a receiver, assignee or trustee in bankruptcy or reorganization, liquidator, sequestrator or similar
official shall have been appointed for or taken possession of the Company or such other obligor, the property of the Company or such other obligor, or in the event of any other judicial proceedings relative to the Company or such


  
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other obligor upon the Notes, or to the creditors or property of the Company or such other obligor, the Trustee, irrespective of whether the principal of the Notes shall then be due and payable
as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand pursuant to the provisions of this Section 6.04, shall be entitled and empowered, by intervention in such proceedings or
otherwise, to file and prove a claim or claims for the whole amount of principal and accrued and unpaid interest, if any, in respect of the Notes, and, in case of any judicial proceedings, to file such proofs of claim and other papers or documents
and to take such other actions as it may deem necessary or advisable in order to have the claims of the Trustee (including any claim for the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel) and of
the Holders allowed in such judicial proceedings relative to the Company or any other obligor on the Notes, its or their creditors, or its or their property, and to collect and receive any monies or other property payable or deliverable on any such
claims, and to distribute the same after the deduction of any amounts due to the Trustee under Section 7.06; and any receiver, assignee or trustee in bankruptcy or reorganization, liquidator, custodian or similar official is hereby authorized
by each of the Holders to make such payments to the Trustee, as administrative expenses, and, in the event that the Trustee shall consent to the making of such payments directly to the Holders, to pay to the Trustee any amount due it for reasonable
compensation, expenses, advances and disbursements, including agents and counsel fees, and including any other amounts due to the Trustee under Section 7.06, incurred by it up to the date of such distribution. To the extent that such payment of
reasonable compensation, expenses, advances and disbursements out of the estate in any such proceedings shall be denied for any reason, payment of the same shall be secured by a lien on, and shall be paid out of, any and all distributions,
dividends, monies, securities and other property that the Holders of the Notes may be entitled to receive in such proceedings, whether in liquidation or under any plan of reorganization or arrangement or otherwise. 

Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt on behalf of any Holder any
plan of reorganization, arrangement, adjustment or composition affecting such Holder or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding. 

All rights of action and of asserting claims under this Indenture, or under any of the Notes, may be enforced by the Trustee without the
possession of any of the Notes, or the production thereof at any trial or other proceeding relative thereto, and any such suit or proceeding instituted by the Trustee shall be brought in its own name as trustee of an express trust, and any recovery
of judgment shall, after provision for the payment of the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, be for the ratable benefit of the Holders of the Notes. 

In any proceedings brought by the Trustee (and in any proceedings involving the interpretation of any provision of this Indenture to which the
Trustee shall be a party), the Trustee shall be held to represent all the Holders of the Notes, and it shall not be necessary to make any Holders of the Notes parties to any such proceedings. 

In case the Trustee shall have proceeded to enforce any right under this Indenture and such proceedings shall have been discontinued or
abandoned because of any waiver pursuant to 

  
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Section 6.09 or any rescission and annulment pursuant to Section 6.02 or for any other reason or shall have been determined adversely to the Trustee, then and in every such case the
Company, the Holders, and the Trustee shall, subject to any determination in such proceeding, be restored respectively to their several positions and rights hereunder, and all rights, remedies and powers of the Company, the Holders, and the Trustee
shall continue as though no such proceeding had been instituted. 
 Section 6.05    Application of Monies
Collected by Trustee. Any monies collected by the Trustee pursuant to this Article VI with respect to the Notes shall be applied in the following order, at the date or dates fixed by the Trustee for the distribution of such monies, upon
presentation of the several Notes, and stamping thereon the payment, if only partially paid, and upon surrender thereof, if fully paid: 

First, to the payment of all amounts due the Trustee under Section 7.06; 

Second, in case the principal of the outstanding Notes shall not have become due and be unpaid, to the payment of interest on, and any cash
due upon conversion of, the Notes in default in the order of the due date of the payments of such interest and cash due upon conversion, as the case may be, with interest (to the extent that such interest has been collected by the Trustee) upon such
overdue payments at the rate borne by the Notes at such time, such payments to be made ratably to the Persons entitled thereto; 
 Third, in
case the principal of the outstanding Notes shall have become due, by declaration or otherwise, and be unpaid to the payment of the whole amount (including, if applicable, the payment of the Redemption Price or Fundamental Change Repurchase Price
and any cash due upon conversion) then owing and unpaid upon the Notes for principal and interest, if any, with interest on the overdue principal and, to the extent that such interest has been collected by the Trustee, upon overdue installments of
interest at the rate borne by the Notes at such time, and in case such monies shall be insufficient to pay in full the whole amounts so due and unpaid upon the Notes, then to the payment of such principal (including, if applicable, the Redemption
Price or Fundamental Change Repurchase Price and the cash due upon conversion) and interest without preference or priority of principal over interest, or of interest over principal or of any installment of interest over any other installment of
interest, or of any Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the Redemption Price or Fundamental Change Repurchase Price and any cash due upon conversion) and accrued and unpaid interest; and

 Fourth, to the payment of the remainder, if any, to the Company. 

Section 6.06    Proceedings by Holders. Except to enforce the right to receive payment of principal
(including, if applicable, the Redemption Price or Fundamental Change Repurchase Price) or interest when due, or the right to receive payment or delivery of the consideration due upon conversion, no Holder of any Note shall have any right by virtue
of or by availing of any provision of this Indenture to institute any suit, action or proceeding in equity or at law upon or under or with respect to this Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other
similar official, or for any other remedy hereunder, unless: 

  
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 (a)    such Holder previously shall have given to the Trustee written notice
of an Event of Default and of the continuance thereof, as herein provided; 
 (b)    Holders of at least 25% in
aggregate principal amount of the Notes then outstanding shall have made written request upon the Trustee to pursue such remedy hereunder; 

(c)    such Holders shall have offered to the Trustee such security or indemnity satisfactory to it against any loss,
liability or expense to be incurred therein or thereby; 
 (d)    the Trustee for 60 days after its receipt of the
request and offer of security or indemnity, had not complied with such request; and 
 (e)    no direction that, in the
opinion of the Trustee, is inconsistent with such written request shall have been given to the Trustee by the Holders of a majority of the aggregate principal amount of the Notes then outstanding within such
60-day period pursuant to Section 6.09, 
 it being understood and intended, and being expressly covenanted by
the taker and Holder of every Note with every other taker and Holder and the Trustee that no one or more Holders shall have any right in any manner whatever by virtue of or by availing of any provision of this Indenture to affect, disturb or
prejudice the rights of any other Holder, or to obtain or seek to obtain priority over or preference to any other such Holder, or to enforce any right under this Indenture, except in the manner herein provided and for the equal, ratable and common
benefit of all Holders (except as otherwise provided herein) (it being understood that the Trustee does not have an affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders). For the protection
and enforcement of this Section 6.06, each and every Holder and the Trustee shall be entitled to such relief as can be given either at law or in equity. 

Notwithstanding any other provision of this Indenture and any provision of any Note, the right of any Holder to bring suit for the enforcement
of payment or delivery, as the case may be, of (x) the principal (including the Redemption Price or Fundamental Change Repurchase Price, if applicable) of, (y) accrued and unpaid interest, if any, on, and (z) the consideration due
upon conversion of, such Note, on or after the respective due dates expressed or provided for in such Note or in this Indenture, shall not be impaired or affected without the consent of such Holder. 

Section 6.07    Proceedings by Trustee. In case of an Event of Default the Trustee may in its discretion
(subject to the provisions of Section 7.01) proceed to protect and enforce the rights vested in it by this Indenture by such appropriate judicial proceedings as are necessary to protect and enforce any of such rights, either by suit in equity
or by action at law or by proceeding in bankruptcy or otherwise, whether for the specific enforcement of any covenant or agreement contained in this Indenture or in aid of the exercise of any power granted in this Indenture, or to enforce any other
legal or equitable right vested in the Trustee by this Indenture or by law. 
 Section 6.08    Remedies
Cumulative and Continuing. Except as provided in the last paragraph of Section 2.06, all powers and remedies given by this Article VI to the Trustee or to the Holders shall, to the extent permitted by law, be deemed cumulative and not
exclusive of any thereof or of any other powers and remedies available to the Trustee or the Holders of the Notes, 

  
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by judicial proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in this Indenture, and no delay or omission of the Trustee or of any
Holder of any of the Notes to exercise any right or power accruing upon any Default or Event of Default shall impair any such right or power, or shall be construed to be a waiver of any such Default or Event of Default or any acquiescence therein;
and, subject to the provisions of Section 6.06, every power and remedy given by this Article VI or by law to the Trustee or to the Holders may be exercised from time to time, and as often as shall be deemed expedient, by the Trustee or by the
Holders. 
 Section 6.09    Direction of Proceedings and Waiver of Defaults by Majority of Holders. The
Holders of a majority of the aggregate principal amount of the Notes at the time outstanding determined in accordance with Section 8.04 shall have the right to direct the time, method and place of conducting any proceeding for any remedy
available to the Trustee or exercising any trust or power conferred on the Trustee with respect to Notes; provided, however, that such direction shall not be in conflict with any rule of law or with this Indenture, and the Trustee may take
any other action deemed proper by the Trustee that is not inconsistent with such direction. The Trustee may refuse to follow any direction that it determines is unduly prejudicial to the rights of any other Holder or that would involve the Trustee
in personal liability. The Holders of a majority in aggregate principal amount of the Notes at the time outstanding determined in accordance with Section 8.04 may on behalf of the Holders of all of the Notes waive any past Default or Event of
Default hereunder and its consequences except (i) a default in the payment of accrued and unpaid interest, if any, on, or the principal (including any Redemption Price or Fundamental Change Repurchase Price) of, the Notes when due that has not
been cured pursuant to the provisions of Section 6.01, (ii) a failure by the Company to pay or deliver, as the case may be, the consideration due upon conversion of the Notes or (iii) a default in respect of a covenant or provision hereof
which under Article X cannot be modified or amended without the consent of each Holder of an outstanding Note affected. Upon any such waiver the Company, the Trustee and the Holders of the Notes shall be restored to their former positions and rights
hereunder, but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon. Whenever any Default or Event of Default hereunder shall have been waived as permitted by this
Section 6.09, said Default or Event of Default shall for all purposes of the Notes and this Indenture be deemed to have been cured and to be not continuing; but no such waiver shall extend to any subsequent or other Default or Event of Default
or impair any right consequent thereon. 
 Section 6.10    Notice of Defaults. The Trustee shall, within 90
days after a Responsible Officer of the Trustee receives written notice of the occurrence and continuance of a Default, send to all Holders as the names and addresses of such Holders appear upon the Note Register, notice of all such Defaults, unless
such Defaults shall have been cured or waived before the giving of such notice; provided that, except in the case of a Default in the payment of the principal of (including the Redemption Price or Fundamental Change Repurchase Price, if
applicable), or accrued and unpaid interest on, any of the Notes or a Default in the payment or delivery of the consideration due upon conversion, the Trustee shall be protected in withholding such notice if and so long as it in good faith
determines that the withholding of such notice is in the interests of the Holders. 

  
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 Section 6.11    Undertaking to Pay Costs. All parties to this
Indenture agree, and each Holder of any Note by its acceptance thereof shall be deemed to have agreed, that any court may, in its discretion, require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit
against the Trustee for any action taken or omitted by it as Trustee, the filing by any party litigant in such suit of an undertaking to pay the costs of such suit and that such court may in its discretion assess reasonable costs, including
reasonable attorneys’ fees and expenses, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided that the provisions of this
Section 6.11 (to the extent permitted by law) shall not apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Notes at the time
outstanding determined in accordance with Section 8.04, or to any suit instituted by any Holder for the enforcement of the payment of the principal of or accrued and unpaid interest, if any, on any Note (including, but not limited to, the
Redemption Price or Fundamental Change Repurchase Price with respect to the Notes being redeemed or repurchased as provided in this Indenture) on or after the due date expressed or provided for in such Note or to any suit for the enforcement of the
right to convert any Note in accordance with the provisions of Article XIII. 
 ARTICLE VII 

CONCERNING THE TRUSTEE 

Section 7.01    Duties and Responsibilities of Trustee. The Trustee, prior to the occurrence of an Event of
Default and after the curing or waiver of all Events of Default that may have occurred, undertakes to perform such duties and only such duties as are specifically set forth in this Indenture. In case an Event of Default has occurred that has not
been cured or waived the Trustee shall exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in their exercise, as a prudent person would exercise or use under the circumstances in the
conduct of such person’s own affairs; provided that if an Event of Default occurs and is continuing, the Trustee will be under no obligation to exercise any of the rights or powers under this Indenture at the request or direction of any
of the Holders unless such Holders have offered to the Trustee indemnity or security satisfactory to the Trustee against the costs, expenses and liabilities that might be incurred by it in compliance with such request or direction. 

No provision of this Indenture shall be construed to relieve the Trustee from liability for its own grossly negligent action, its own grossly
negligent failure to act, its own willful misconduct or its own bad faith, except that: 
 (a)    prior to the
occurrence of an Event of Default and after the curing or waiving of all Events of Default that may have occurred: 

(i)    the duties and obligations of the Trustee shall be determined solely by the express provisions of this Indenture,
and the Trustee shall not be liable except for the performance of such duties and obligations as are specifically set forth in this Indenture and no implied covenants or obligations shall be read into this Indenture against the Trustee; and 

  
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 (ii)    in the absence of bad faith on the part of the Trustee, the Trustee
may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture; but, in the case of any
such certificates or opinions that by any provisions hereof are specifically required to be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform to the requirements of this
Indenture (but need not confirm or investigate the accuracy of any mathematical calculations or other facts stated therein); 

(b)    the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer or Officers
of the Trustee, unless it shall be proved that the Trustee was grossly negligent in ascertaining the pertinent facts; 

(c)    the Trustee shall not be responsible or liable for any action it takes, suffers or omits to take in good faith that
it believes to be authorized or within the rights or powers conferred upon it by this Indenture; 
 (d)    the Trustee
shall not be liable with respect to any action taken or omitted to be taken by it in good faith in accordance with the direction of the Holders of not less than a majority of the aggregate principal amount of the Notes at the time outstanding
determined as provided in Section 8.04 relating to the time, method and place of conducting any proceeding for any remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture; 

(e)    whether or not therein provided, every provision of this Indenture relating to the conduct or affecting the
liability of, or affording protection to, the Trustee shall be subject to the provisions of this Section; 
 (f)    the
Trustee shall not be liable in respect of any payment (as to the correctness of amount, entitlement to receive or any other matters relating to payment) or notice effected by the Company or any Paying Agent or any records maintained by any co-Note Registrar with respect to the Notes; 
 (g)    if any party fails to deliver a
notice relating to an event the fact of which, pursuant to this Indenture, requires notice to be sent to the Trustee, the Trustee may conclusively rely on its failure to receive such notice as reason to act as if no such event occurred, unless a
Responsible Officer of the Trustee had actual knowledge of such event; 
 (h)    in the absence of written investment
direction from the Company, all cash received by the Trustee shall be placed in a non-interest bearing trust account, and in no event shall the Trustee be liable for the selection of investments or for
investment losses, fees, taxes or other costs incurred with respect thereto or for losses incurred as a result of the liquidation of any such investment prior to its maturity date or the failure of the party directing such investments prior to its
maturity date or the failure of the party directing such investment to provide timely written investment direction, and the Trustee shall have no obligation to invest or reinvest any amounts held hereunder in the absence of such written investment
direction from the Company; and 

  
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 (i)    in the event that the Trustee is also acting as Custodian, Note
Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or transfer agent hereunder, the rights and protections afforded to the Trustee pursuant to this Article VII, including, without limitation, the right to be indemnified, shall also be
afforded to such Custodian, Note Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or transfer agent. 
 None of the
provisions contained in this Indenture shall require the Trustee to expend or risk its own funds or otherwise incur personal financial liability in the performance of any of its duties or in the exercise of any of its rights or powers. 

Section 7.02    Reliance on Documents, Opinions, Etc. Except as otherwise provided in Section 7.01: 

(a)    the Trustee may conclusively rely and shall be fully protected in acting or refraining from acting upon any
resolution, certificate, statement, instrument, opinion, report, notice, request, consent, order, bond, note, coupon or other paper or document believed by it in good faith to be genuine and to have been signed or presented by the proper party or
parties; 
 (b)    before the Trustee acts or refrains from acting, it may require an Officer’s Certificate or an
Opinion of Counsel or both. The Trustee will not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion of Counsel; 

(c)    any request, direction, order or demand of the Company mentioned herein shall be sufficiently evidenced by an
Officer’s Certificate (unless other evidence in respect thereof be herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy thereof certified by the Secretary or an Assistant Secretary of the Company;

 (d)    the Trustee may consult with counsel of its selection and require an Opinion of Counsel and any advice of such
counsel or Opinion of Counsel shall be full and complete authorization and protection or reliance on in respect of any action taken, suffered or omitted by it hereunder in good faith and in reliance on such advice or Opinion of Counsel; 

(e)    the Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution,
certificate, statement, instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or
matters as it may see fit, and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled to examine the books, records and premises of the Company, personally or by agent or attorney at the expense of the
Company and shall incur no liability of any kind by reason of such inquiry or investigation; 
 (f)    the Trustee shall
not be required to give any bond or surety in respect of the performance of its powers and duties hereunder; 

(g)    the rights, privileges, protections, immunities and benefits given to the Trustee, including, without limitation,
its right to be indemnified, are extended to, and shall be 

  
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enforceable by, the Trustee in each of its capacities hereunder, and each agent, custodian and other Person employed to act hereunder; 

(h)    the Trustee may request that the Company deliver a certificate setting forth the names of individuals and/or titles
of officers authorized at such time to take specified actions pursuant to this Indenture (i.e., an incumbency certificate); 

(i)    the Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by
or through agents, custodians, nominees or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the part of any agent, custodian, nominee or attorney appointed by it with due care hereunder; 

(j)    the permissive rights of the Trustee enumerated herein shall not be construed as duties; and 

(k)    the Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at
the request or direction of any of the Holders pursuant to this Indenture, unless such Holders shall have offered to the Trustee security or indemnity satisfactory to it against the costs, expenses and liabilities which might be incurred by it in
compliance with such request or direction. 
 (l)    Neither the Trustee nor any of its directors, officers, employees,
agents or affiliates shall be responsible for or have any duty to monitor the performance or any action of the Company or any of its directors, members, officers, agents, affiliates or employees, nor shall the Trustee have any liability in
connection with the malfeasance or non feasance by the Company or any of its directors, members, officers, agents, affiliates or employees. The Trustee shall not be responsible for any inaccuracy in the information obtained from the Company or for
any inaccuracy or omission in the records that may result from such information or any failure by the Trustee to perform its duties as set forth in this Indenture as a result of any inaccuracy or incompleteness therein. 

In no event shall the Trustee be responsible or liable for any special, indirect, punitive or consequential loss or damage of any kind
whatsoever (including, but not limited to, lost profits), even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action. The Trustee shall not be charged with knowledge of any Default or Event of
Default with respect to the Notes, unless either (1) a Responsible Officer shall have actual knowledge of such Default or Event of Default or (2) written notice of such Default or Event of Default is received by the Trustee at the
Corporate Trust Office of the Trustee, and such notice references the Notes and this Indenture and indicates it is a notice of default. 

Section 7.03    No Responsibility for Recitals, Etc. The recitals contained herein and in the Notes (except in
the Trustee’s certificate of authentication) shall be taken as the statements of the Company, and the Trustee assumes no responsibility for the correctness of the same. The Trustee makes no representations as to the validity or sufficiency of
this Indenture or of the Notes. The Trustee shall not be accountable for the use or application by the Company of any Notes or the proceeds of any Notes authenticated and delivered by the Trustee in conformity with the provisions of this Indenture.


  
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 Section 7.04    Trustee, Paying Agents, Conversion Agents, Bid
Solicitation Agent or Note Registrar May Own Notes. The Trustee, any Paying Agent (if other than the Company), any Conversion Agent, Bid Solicitation Agent (if other than the Company) or Note Registrar, in its individual or any other capacity,
may become the owner or pledgee of Notes with the same rights it would have if it were not the Trustee, Paying Agent, Conversion Agent, Bid Solicitation Agent or Note Registrar. 

Section 7.05    Monies and Shares of Common Stock to Be Held in Trust. All monies and any shares of Common
Stock received by the Trustee shall, until used or applied as herein provided, be held in trust for the purposes for which they were received. Money and any shares of Common Stock held by the Trustee in trust hereunder need not be segregated from
other funds or property except to the extent required by law. The Trustee shall be under no liability for interest on any money or shares of any Common Stock received by it hereunder except as may be agreed from time to time in writing by the
Company and the Trustee. 
 Section 7.06    Compensation and Expenses of Trustee. The Company covenants and
agrees to pay to the Trustee from time to time, and the Trustee shall be entitled to, such compensation for all services rendered by it hereunder in any capacity (which shall not be limited by any provision of law in regard to the compensation of a
trustee of an express trust) as mutually agreed to in writing between the Trustee and the Company, and the Company will pay or reimburse the Trustee upon its request for all reasonable expenses, disbursements and advances reasonably incurred or made
by the Trustee in accordance with any of the provisions of this Indenture in any capacity thereunder (including the reasonable compensation and the expenses and disbursements of its agents and counsel and of all Persons not regularly in its employ)
except any such expense, disbursement or advance as shall have been caused by its gross negligence, willful misconduct or bad faith. The Company also covenants to indemnify the Trustee or any predecessor Trustee in any capacity under this Indenture
and any other document or transaction entered into in connection herewith and their agents and any authenticating agent for, and to hold them harmless against, any loss, claim (whether asserted by the Company, any Holder or any other Person),
damage, liability or expense incurred without gross negligence, willful misconduct or bad faith on the part of the Trustee, its officers, directors, agents or employees, or such agent or authenticating agent, as the case may be, and arising out of
or in connection with the acceptance or administration of this trust or in any other capacity hereunder, including the costs and expenses of defending themselves against any claim of liability in the premises or enforcing the Company’s
obligations hereunder. The obligations of the Company under this Section 7.06 to compensate or indemnify the Trustee and to pay or reimburse the Trustee for expenses, disbursements and advances shall be secured by a senior claim to which the
Notes are hereby made subordinate on all money or property held or collected by the Trustee, except, subject to the effect of Section 6.05, funds held in trust herewith for the benefit of the Holders of particular Notes. The Trustee’s
right to receive payment of any amounts due under this Section 7.06 shall not be subordinate to any other liability or indebtedness of the Company. The obligations of the Company under this Section 7.06 shall survive the satisfaction and
discharge of this Indenture and the earlier resignation or removal of the Trustee. The Company need not pay for any settlement made without its consent, which consent shall not be unreasonably withheld. The indemnification provided in this
Section 7.06 shall extend to the officers, directors, agents and employees of the Trustee. 

  
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 Without prejudice to any other rights available to the Trustee under applicable law, when the
Trustee and its agents and any authenticating agent incur expenses or render services after an Event of Default specified in Section 6.01(i) or Section 6.01(j) occurs, the expenses (including the reasonable charges and expenses of its counsel) and
the compensation for the services are intended to constitute expenses of administration under any bankruptcy, insolvency or similar laws. 

Section 7.07    Eligibility of Trustee. There shall at all times be a Trustee hereunder which shall be a
Person that is eligible pursuant to the Trust Indenture Act to act as such and has a combined capital and surplus of at least $50,000,000. If such Person publishes reports of condition at least annually, pursuant to law or to the requirements of any
supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Person shall be deemed to be its combined capital and surplus as set forth in its most recent report of condition so published. If at
any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article. 

Section 7.08    Resignation or Removal of Trustee. (a) The Trustee may at any time resign by giving
written notice of such resignation to the Company and by mailing notice thereof to the Holders at their addresses as they shall appear on the Note Register. Upon receiving such notice of resignation, the Company shall promptly appoint a successor
trustee by written instrument, in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the resigning Trustee and one copy to the successor trustee. If no successor trustee shall have been so
appointed and have accepted appointment within 30 days after the mailing of such notice of resignation to the Holders, the resigning Trustee may, at the expense of the Company, petition any court of competent jurisdiction for the appointment of a
successor trustee, or any Holder who has been a bona fide holder of a Note or Notes for at least six months may, subject to the provisions of Section 6.11, on behalf of himself or herself and all others similarly situated, petition any such
court for the appointment of a successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, appoint a successor trustee. 

(b)    In case at any time any of the following shall occur: 

(i)    the Trustee shall cease to be eligible in accordance with the provisions of Section 7.07 and shall fail to
resign after written request therefor by the Company or by any such Holder, or 
 (ii)    the Trustee shall become
incapable of acting, or shall be adjudged a bankrupt or insolvent, or a receiver of the Trustee or of its property shall be appointed, or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of
rehabilitation, conservation or liquidation, 
 then, in either case, the Company may by a Board Resolution remove the Trustee and appoint a successor
trustee by written instrument, in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the Trustee so removed and one copy to the successor trustee, or, subject to the provisions of
Section 6.11, any Holder who has 

  
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been a bona fide holder of a Note or Notes for at least six months may, on behalf of himself or herself and all others similarly situated, at the expense of the Company, petition any court of
competent jurisdiction for the removal of the Trustee and the appointment of a successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, remove the Trustee and appoint a successor trustee. If no
successor trustee shall have been so appointed and have accepted appointment within 30 days after the mailing of such notice of removal to the Holders, the Trustee being removed may, at the expense of the Company, petition any court of competent
jurisdiction for the appointment of a successor trustee with respect to the Notes. 
 (c)    The Holders of a majority
in aggregate principal amount of the Notes at the time outstanding, as determined in accordance with Section 8.04, may at any time remove the Trustee and nominate a successor trustee by so notifying the Trustee and the Company in writing not
less than 30 days prior to the effective date of such removal. If within ten days after notice to the Company of such nomination the Company objects thereto, the Trustee so removed or any Holder, upon the terms and conditions and otherwise as in
Section 7.08 provided, may petition any court of competent jurisdiction for an appointment of a successor trustee. 

(d)    Any resignation or removal of the Trustee and appointment of a successor trustee pursuant to any of the provisions
of this Section 7.08 shall become effective upon acceptance of appointment by the successor trustee as provided in Section 7.09. 

Section 7.09    Acceptance by Successor Trustee. Any successor trustee appointed as provided in
Section 7.08 shall execute, acknowledge and deliver to the Company and to its predecessor trustee an instrument accepting such appointment hereunder, and thereupon the resignation or removal of the predecessor trustee shall become effective and
such successor trustee, without any further act, deed or conveyance, shall become vested with all the rights, powers, duties and obligations of its predecessor hereunder, with like effect as if originally named as Trustee herein; but, nevertheless,
on the written request of the Company or of the successor trustee, the trustee ceasing to act shall, upon payment of any amounts then due it pursuant to the provisions of Section 7.06, execute and deliver an instrument transferring to such
successor trustee all the rights and powers of the trustee so ceasing to act. Upon request of any such successor trustee, the Company shall execute any and all instruments in writing for more fully and certainly vesting in and confirming to such
successor trustee all such rights and powers. Any trustee ceasing to act shall, nevertheless, retain a senior claim to which the Notes are hereby made subordinate on all money or property held or collected by such trustee as such, except for funds
held in trust for the benefit of Holders of particular Notes, to secure any amounts then due it pursuant to the provisions of Section 7.06. 

No successor trustee shall accept appointment as provided in this Section 7.09 unless at the time of such acceptance such successor
trustee shall be eligible under the provisions of Section 7.07. 
 Upon acceptance of appointment by a successor trustee as provided in
this Section 7.09, each of the Company and the successor trustee, at the written direction and at the expense of the Company shall mail or cause to be mailed notice of the succession of such trustee hereunder to the Holders at their addresses
as they shall appear on the Note Register. If the Company fails to 

  
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mail such notice within ten days after acceptance of appointment by the successor trustee, the successor trustee shall cause such notice to be mailed at the expense of the Company. 

The Trustee shall have no responsibility or liability for the action or inaction of a successor trustee. 

Section 7.10    Succession by Merger, Etc. Any corporation or other entity into which the Trustee may be
merged or converted or with which it may be consolidated, or any corporation or other entity resulting from any merger, conversion or consolidation to which the Trustee shall be a party, or any corporation or other entity succeeding to all or
substantially all of the corporate trust business of the Trustee (including the administration of this Indenture), shall be the successor to the Trustee hereunder without the execution or filing of any paper or any further act on the part of any of
the parties hereto; provided that in the case of any corporation or other entity succeeding to all or substantially all of the corporate trust business of the Trustee such corporation or other entity shall be eligible under the provisions of
Section 7.07. 
 In case at the time such successor to the Trustee shall succeed to the trusts created by this Indenture, any of the
Notes shall have been authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee or authenticating agent appointed by such predecessor trustee, and deliver such Notes so
authenticated; and in case at that time any of the Notes shall not have been authenticated, any successor to the Trustee or an authenticating agent appointed by such successor trustee may authenticate such Notes either in the name of any predecessor
trustee hereunder or in the name of the successor trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall have; provided,
however, that the right to adopt the certificate of authentication of any predecessor trustee or to authenticate Notes in the name of any predecessor trustee shall apply only to its successor or successors by merger, conversion or consolidation.

 Section 7.11    Trustee’s Application for Instructions from the Company. Any
application by the Trustee for written instructions from the Company (other than with regard to any action proposed to be taken or omitted to be taken by the Trustee that affects the rights of the Holders of the Notes under this Indenture) may, at
the option of the Trustee, set forth in writing any action proposed to be taken or omitted by the Trustee under this Indenture and the date on and/or after which such action shall be taken or such omission shall be effective. The Trustee shall not
be liable for any action taken by, or omission of, the Trustee in accordance with a proposal included in such application on or after the date specified in such application (which date shall not be less than three Business Days after the date any
officer that the Company has indicated to the Trustee should receive such application actually receives such application, unless any such officer shall have consented in writing to any earlier date), unless, prior to taking any such action (or the
effective date in the case of any omission), the Trustee shall have received written instructions in accordance with this Indenture in response to such application specifying the action to be taken or omitted. 

  
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 ARTICLE VIII 

CONCERNING THE HOLDERS 

Section 8.01    Action by Holders. Whenever in this Indenture it is provided that the Holders of a specified
percentage of the aggregate principal amount of the Notes may take any action (including the making of any demand or request, the giving of any notice, consent or waiver or the taking of any other action), the fact that at the time of taking any
such action, the Holders of such specified percentage have joined therein may be evidenced by (a) any instrument or any number of instruments of similar tenor executed by Holders in person or by agent or proxy appointed in writing, or
(b) the record of the Holders voting in favor thereof at any meeting of Holders duly called and held in accordance with the provisions of Article IX, or (c) a combination of such instrument or instruments and any such record of such a
meeting of Holders. Whenever the Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company or the Trustee may, but shall not be required to, fix in advance of such solicitation, a date as the record date for
determining Holders entitled to take such action. The record date if one is selected shall be not more than fifteen days prior to the date of commencement of solicitation of such action. 

Section 8.02    Proof of Execution by Holders. Subject to the provisions of Section 7.01,
Section 7.02 and Section 9.05, proof of the execution of any instrument by a Holder or its agent or proxy shall be sufficient if made in accordance with such reasonable rules and regulations as may be prescribed by the Trustee or in such
manner as shall be satisfactory to the Trustee. The holding of Notes shall be proved by the Note Register or by a certificate of the Note Registrar. The record of any Holders’ meeting shall be proved in the manner provided in Section 9.06.

 Section 8.03    Who Are Deemed Absolute Owners. The Company, the Trustee, any authenticating agent, any
Paying Agent, any Conversion Agent and any Note Registrar may deem the Person in whose name a Note shall be registered upon the Note Register to be, and may treat it as, the absolute owner of such Note (whether or not such Note shall be overdue and
notwithstanding any notation of ownership or other writing thereon made by any Person other than the Company or any Note Registrar) for the purpose of receiving payment of or on account of the principal of and (subject to Section 2.03) accrued
and unpaid interest on such Note, for conversion of such Note and for all other purposes under this Indenture; and neither the Company nor the Trustee nor any Paying Agent nor any Conversion Agent nor any Note Registrar shall be affected by any
notice to the contrary. The sole registered holder of a Global Note shall be the Depositary or its nominee. All such payments or deliveries so made to any Holder for the time being, or upon its order, shall be valid, and, to the extent of the sums
or shares of Common Stock so paid or delivered, effectual to satisfy and discharge the liability for monies payable or shares deliverable upon any such Note. Notwithstanding anything to the contrary in this Indenture or the Notes following an Event
of Default, any owner of a beneficial interest in a Global Note may directly enforce against the Company, without the consent, solicitation, proxy, authorization or any other action of the Depositary or any other Person, such owner’s right to
exchange such beneficial interest for a Note in certificated form in accordance with the provisions of this Indenture. 

Section 8.04    Company-Owned Notes Disregarded. In determining whether the Holders of the requisite aggregate
principal amount of Notes have concurred in any direction, consent, 

  
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waiver or other action under this Indenture, Notes that are owned by the Company, by any Subsidiary thereof or by any Person directly or indirectly controlling or controlled by or under direct or
indirect common control with the Company or any Subsidiary thereof shall be disregarded and deemed not to be outstanding for the purpose of any such determination; provided that for the purposes of determining whether the Trustee shall be
protected in conclusively relying on any such direction, consent, waiver or other action only Notes that a Responsible Officer actually knows are so owned shall be so disregarded. Notes so owned that have been pledged in good faith may be regarded
as outstanding for the purposes of this Section 8.04 if the pledgee shall establish to the satisfaction of the Trustee the pledgee’s right to so act with respect to such Notes and that the pledgee is not the Company, a Subsidiary thereof
or a Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company or a Subsidiary thereof. In the case of a dispute as to such right, any decision or indecision by the Trustee taken upon the
advice of counsel shall be full protection to the Trustee. The Company shall furnish to the Trustee promptly an Officer’s Certificate listing and identifying all Notes, if any, known by the Company to be owned or held by or for the account of
any of the above described Persons; and, subject to Section 7.01, the Trustee shall be entitled to accept such Officer’s Certificate as conclusive evidence of the facts therein set forth and of the fact that all Notes not listed therein
are outstanding for the purpose of any such determination. 
 Section 8.05    Revocation of Consents; Future
Holders Bound. At any time prior to (but not after) the evidencing to the Trustee, as provided in Section 8.01, of the taking of any action by the Holders of the percentage of the aggregate principal amount of the Notes specified in this
Indenture in connection with such action, any Holder of a Note that is shown by the evidence to be included in the Notes the Holders of which have consented to such action may, by filing written notice with the Trustee at its Corporate Trust Office
and upon proof of holding as provided in Section 8.02, revoke such action so far as concerns such Note. Except as aforesaid, any such action taken by the Holder of any Note shall be conclusive and binding upon such Holder and upon all future
Holders and owners of such Note and of any Notes issued in exchange or substitution therefor or upon registration of transfer thereof, irrespective of whether any notation in regard thereto is made upon such Note or any Note issued in exchange or
substitution therefor or upon registration of transfer thereof. 
 ARTICLE IX 

HOLDERS’ MEETINGS 

Section 9.01    Purpose of Meetings. A meeting of Holders may be called at any time and from time to time
pursuant to the provisions of this Article IX for any of the following purposes: 
 (a)    to give any notice to the
Company or to the Trustee or to give any directions to the Trustee permitted under this Indenture, or to consent to the waiving of any Default or Event of Default hereunder (in each case, as permitted under this Indenture) and its consequences, or
to take any other action authorized to be taken by Holders pursuant to any of the provisions of Article VI; 
 (b)    to
remove the Trustee and nominate a successor trustee pursuant to the provisions of Article VII; 

  
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 (c)    to consent to the execution of an indenture or indentures supplemental
hereto pursuant to the provisions of Section 10.02; or 
 (d)    to take any other action authorized to be taken by
or on behalf of the Holders of any specified aggregate principal amount of the Notes under any other provision of this Indenture or under applicable law. 

Section 9.02    Call of Meetings by Trustee. The Trustee may at any time call a meeting of Holders to take any
action specified in Section 9.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of the Holders, setting forth the time and the place of such meeting and in general terms the action proposed to
be taken at such meeting and the establishment of any record date pursuant to Section 8.01, shall be mailed to Holders of such Notes at their addresses as they shall appear on the Note Register. Such notice shall also be mailed to the Company.
Such notices shall be mailed not less than 20 nor more than 90 days prior to the date fixed for the meeting. 
 Any meeting of Holders shall
be valid without notice if the Holders of all Notes then outstanding are present in person or by proxy or if notice is waived before or after the meeting by the Holders of all Notes then outstanding, and if the Company and the Trustee are either
present by duly authorized representatives or have, before or after the meeting, waived notice. 

Section 9.03    Call of Meetings by Company or Holders. In case at any time the Company, pursuant to a Board
Resolution, or the Holders of at least 10% of the aggregate principal amount of the Notes then outstanding, shall have requested the Trustee to call a meeting of Holders, by written request setting forth in reasonable detail the action proposed to
be taken at the meeting, and the Trustee shall not have mailed the notice of such meeting within 20 days after receipt of such request, then the Company or such Holders may determine the time and the place for such meeting and may call such meeting
to take any action authorized in Section 9.01, by mailing notice thereof as provided in Section 9.02. 

Section 9.04    Qualifications for Voting. To be entitled to vote at any meeting of Holders a Person shall
(a) be a Holder of one or more Notes on the record date pertaining to such meeting or (b) be a Person appointed by an instrument in writing as proxy by a Holder of one or more Notes on the record date pertaining to such meeting. The only
Persons who shall be entitled to be present or to speak at any meeting of Holders shall be the Persons entitled to vote at such meeting and their counsel and any representatives of the Trustee and its counsel and any representatives of the Company
and its counsel. 
 Section 9.05    Regulations. Notwithstanding any other provisions of this Indenture, the
Trustee may make such reasonable regulations as it may deem advisable for any meeting of Holders, in regard to proof of the holding of Notes and of the appointment of proxies, and in regard to the appointment and duties of inspectors of votes, the
submission and examination of proxies, certificates and other evidence of the right to vote, and such other matters concerning the conduct of the meeting as it shall think fit. 

The Trustee shall, by an instrument in writing, appoint a temporary chairman of the meeting, unless the meeting shall have been called by the
Company or by Holders as provided in 

  
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Section 9.03, in which case the Company or the Holders calling the meeting, as the case may be, shall in like manner appoint a temporary chairman. A permanent chairman and a permanent
secretary of the meeting shall be elected by vote of the Holders of a majority in aggregate principal amount of the Notes represented at the meeting and entitled to vote at the meeting. 

Subject to the provisions of Section 8.04, at any meeting of Holders each Holder or proxyholder shall be entitled to one vote for each
$1,000 principal amount of Notes held or represented by him or her; provided, however, that no vote shall be cast or counted at any meeting in respect of any Note challenged as not outstanding and ruled by the chairman of the meeting to be
not outstanding. 
 The chairman of the meeting shall have no right to vote other than by virtue of Notes held by it or instruments in
writing as aforesaid duly designating it as the proxy to vote on behalf of other Holders. Any meeting of Holders duly called pursuant to the provisions of Section 9.02 or Section 9.03 may be adjourned from time to time by the Holders of a
majority of the aggregate principal amount of Notes represented at the meeting, whether or not constituting a quorum, and the meeting may be held as so adjourned without further notice. 

Section 9.06    Voting. The vote upon any resolution submitted to any meeting of Holders shall be by written
ballot on which shall be subscribed the signatures of the Holders or of their representatives by proxy and the outstanding aggregate principal amount of the Notes held or represented by them. The permanent chairman of the meeting shall appoint two
inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their verified written reports in duplicate of all votes cast at the meeting. A record in
duplicate of the proceedings of each meeting of Holders shall be prepared by the secretary of the meeting and there shall be attached to said record the original reports of the inspectors of votes on any vote by ballot taken thereat and affidavits
by one or more Persons having knowledge of the facts setting forth a copy of the notice of the meeting and showing that said notice was mailed as provided in Section 9.02. The record shall show the aggregate principal amount of the Notes voting
in favor of or against any resolution. The record shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one of the duplicates shall be delivered to the Company and the other to the Trustee to be
preserved by the Trustee, the latter to have attached thereto the ballots voted at the meeting. 
 Any record so signed and verified shall
be conclusive evidence of the matters therein stated. 
 Section 9.07    No Delay of Rights by Meeting.
Nothing contained in this Article IX shall be deemed or construed to authorize or permit, by reason of any call of a meeting of Holders or any rights expressly or impliedly conferred hereunder to make such call, any hindrance or delay in the
exercise of any right or rights conferred upon or reserved to the Trustee or to the Holders under any of the provisions of this Indenture or of the Notes. Nothing contained in this Article IX shall be deemed or construed to limit any Holder’s
actions pursuant to the applicable procedures of the Depositary so long as the Notes are issued in global form. 

  
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 ARTICLE X 

SUPPLEMENTAL INDENTURES 

Section 10.01    Supplemental Indentures Without Consent of Holders. The Company, when
authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time enter into an indenture or indentures supplemental hereto for one or more of the following purposes: 

(a)    to cure any ambiguity, omission, defect or inconsistency in this Indenture as evidenced by an Officer’s
Certificate; 
 (b)    to provide for the assumption by a Successor Company of the obligations of the Company under this
Indenture pursuant to Article XI; 
 (c)    to enter into supplemental indentures pursuant to, and in accordance with,
the provisions described in Section 13.07 in connection with a Common Stock Change Event; 
 (d)    to add
guarantees with respect to the Notes; 
 (e)    to secure the Notes; 

(f)    to add to the covenants for the benefit of the Holders or surrender any right or power conferred upon the Company;

 (g)    to make any change that does not adversely affect the rights of any Holder; 

(h)    to increase the Conversion Rate as provided in this Indenture; 

(i)    to irrevocably elect or eliminate a Settlement Method or a Specified Dollar Amount; 

(j)    to conform this Indenture to the requirements of the Trust Indenture Act as then in effect; 

(k)    to provide for the acceptance of appointment by a successor trustee pursuant to Section 7.09 or to facilitate
the administration of the trusts by more than one trustee; or 
 (l)    to conform the provisions of this Indenture, or
the Notes, to the “Description of Notes” in the Original Offering Memorandum, to the extent such provision in the “Description of Notes” was intended to be a verbatim recitation of a provision of this Indenture, as evidenced by
an Officer’s Certificate. 
 Upon the written request of the Company, the Trustee is hereby authorized to join with the Company in the
execution of any such supplemental indenture, to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee shall not be obligated to, but may in its discretion, enter into any supplemental indenture that
affects the Trustee’s own rights, duties or immunities under this Indenture or otherwise. 

  
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 Any supplemental indenture authorized by the provisions of this Section 10.01 may be
executed by the Company and the Trustee without the consent of the Holders of any of the Notes at the time outstanding, notwithstanding any of the provisions of Section 10.02. 

Section 10.02    Supplemental Indentures With Consent of Holders. With the consent (evidenced as
provided in Article VIII) of the Holders of at least a majority of the aggregate principal amount of Notes then outstanding (determined in accordance with Article VIII and including, without limitation, consents obtained in connection with a
repurchase of, or tender or exchange offer for, Notes), the Company, when authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time enter into an indenture or
indentures supplemental hereto for the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or any supplemental indenture or of modifying in any manner the rights of the Holders;
provided, however, that, without the consent of each Holder of an outstanding Note affected, no such supplemental indenture shall: 

(a)    reduce the amount of Notes whose Holders must consent to an amendment or modification of this Indenture or the
Notes or to waive any past Default or acceleration; 
 (b)    reduce the rate of or extend the stated time for payment
of interest on any Note; 
 (c)    reduce the principal of or extend the Maturity Date of any Note; 

(d)    make any change that adversely affects the conversion rights of any Notes; 

(e)    reduce the Redemption Price or Fundamental Change Repurchase Price of any Note or amend or modify in any manner
adverse to the Holders the Company’s obligation to make such payments (including by changing the time at which or circumstances under which the Notes may or shall be redeemed or repurchased), whether through an amendment or waiver of provisions
in the covenants or definitions or otherwise; 
 (f)    make any Note payable in money other than that stated in the
Note; 
 (g)    change the ranking of the Notes; 

(h)    impair the right of any Holder to bring suit for the enforcement of its right to receive payment of principal of
(including the Redemption Price or Fundamental Change Repurchase Price, if applicable), interest on, or the consideration due upon conversion of, such Holder’s Notes on or after the due dates therefor; 

(i)    make any change in this Article X that requires each Holder’s consent or in the waiver provisions in
Section 6.01 or Section 6.09; or 
 Upon the written request of the Company, and upon the filing with the Trustee of evidence of
the consent of Holders as aforesaid and subject to Section 10.05, the Trustee shall join with the Company in the execution of such supplemental indenture unless such supplemental indenture affects the Trustee’s own rights, duties or
immunities under this 

  
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Indenture or otherwise, in which case the Trustee may in its discretion, but shall not be obligated to, enter into such supplemental indenture. 

Holders do not need, under this Section 10.02, to approve the particular form of any proposed supplemental indenture. It shall be
sufficient if such Holders approve the substance thereof. After any such supplemental indenture becomes effective, the Company shall mail to the Holders a notice briefly describing such supplemental indenture. However, the failure to give such
notice to all the Holders, or any defect in the notice, will not impair or affect the validity of the supplemental indenture. 

Section 10.03    Effect of Supplemental Indentures. Upon the execution of any supplemental indenture pursuant
to the provisions of this Article X, this Indenture shall be and be deemed to be modified and amended in accordance therewith and the respective rights, limitation of rights, obligations, duties and immunities under this Indenture of the Trustee,
the Company and the Holders shall thereafter be determined, exercised and enforced hereunder subject in all respects to such modifications and amendments and all the terms and conditions of any such supplemental indenture shall be and be deemed to
be part of the terms and conditions of this Indenture for any and all purposes. 
 Section 10.04    Notation on
Notes. Notes authenticated and delivered after the execution of any supplemental indenture pursuant to the provisions of this Article X may, at the Company’s expense, bear a notation in form approved by the Trustee as to any matter provided
for in such supplemental indenture. If the Company or the Trustee shall so determine, new Notes so modified as to conform, in the opinion of the Trustee and the Board of Directors, to any modification of this Indenture contained in any such
supplemental indenture may, at the Company’s expense, be prepared and executed by the Company, authenticated by the Trustee (or an authenticating agent duly appointed by the Trustee pursuant to Section 16.10) and delivered in exchange for
the Notes then outstanding, upon surrender of such Notes then outstanding. 
 Section 10.05    Evidence of
Compliance of Supplemental Indenture to Be Furnished Trustee. In addition to the documents required by Section 16.05, the Trustee shall receive and shall be fully protected in conclusively relying upon an Officer’s Certificate and an
Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the requirements of this Article X, is permitted or authorized by this Indenture, such Opinion of Counsel to include a customary legal
opinion as to the enforceability under New York law of such supplemental indenture, which opinion may contain customary exceptions and qualifications. 

ARTICLE XI 
 CONSOLIDATION, MERGER,
SALE, CONVEYANCE AND LEASE 
 Section 11.01    Company May Consolidate, Etc. on Certain Terms. Subject to
the provisions of Section 11.03, the Company shall not consolidate with, merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets and the properties and assets of its Subsidiaries, taken as a
whole, to another Person, unless: 

  
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 (a)    the resulting, surviving or transferee Person (the “Successor
Company”), if not the Company, shall be a corporation organized and existing under the laws of the United States of America, any State thereof or the District of Columbia, and the Successor Company (if not the Company) shall expressly
assume all of the obligations of the Company under the Notes and this Indenture; and 
 (b)    immediately after giving
effect to such transaction, no Default or Event of Default shall have occurred and be continuing under this Indenture; and 

(c)    the Company has delivered to the Trustee the Officer’s Certificate and Opinion of Counsel pursuant to
Section 11.04. 
 For purposes of this Section 11.01, the sale, conveyance, transfer or lease of the properties and assets of one
or more Subsidiaries of the Company substantially as an entirety to another Person, which properties and assets, if held by the Company instead of such Subsidiaries, would constitute the properties and assets of the Company substantially as an
entirety on a consolidated basis, shall be deemed to be the sale, conveyance, transfer or lease of the properties and assets of the Company substantially as an entirety to another Person. 

Section 11.02    [Reserved] 

Section 11.03    Successor Corporation to Be Substituted. In case of any such consolidation, merger, sale,
conveyance, transfer or lease and upon the assumption by the Successor Company of the due and punctual payment of the principal of and accrued and unpaid interest on all of the Notes, the due and punctual delivery or payment, as applicable, of any
consideration due upon conversion of the Notes and the due and punctual performance of all of the covenants and conditions of this Indenture to be performed by the Company, such Successor Company (if not the Company) shall succeed to, and may
exercise every right and power of, the Company under this Indenture, and the Company will be discharged from the obligations of the Company under the Notes and this Indenture, except in the case of any such lease. 

Such Successor Company thereupon may cause to be signed, and may issue either in its own name or in the name of the Company any or all of the
Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon the order of such Successor Company instead of the Company and subject to all the terms, conditions and limitations in this
Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be authenticated and delivered, any Notes that previously shall have been signed and delivered by the Officers of the Company to the Trustee for authentication, and
any Notes that such Successor Company thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Notes so issued shall in all respects have the same legal rank and benefit under this Indenture as the Notes theretofore
or thereafter issued in accordance with the terms of this Indenture as though all of such Notes had been issued at the date of the execution hereof. In the event of any such consolidation, merger, sale, conveyance or transfer (but not in the case of
a lease), upon compliance with this Article XI the Person named as the “Company” in the first paragraph of this Indenture (or any successor that shall thereafter have become such in the manner prescribed in this Article XI) may be
dissolved, wound up and liquidated at any time thereafter and, except in the case of a lease, such Person shall be released 

  
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from its liabilities as obligor and maker of the Notes and from its obligations under this Indenture and the Notes. 

In case of any such consolidation, merger, sale, conveyance, transfer or lease, such changes in phraseology and form (but not in substance)
may be made in the Notes thereafter to be issued as may be appropriate. 
 Section 11.04    Evidence to Be Given
to Trustee. No consolidation, merger, sale, conveyance, transfer or lease pursuant to this Article XI shall be effective unless the Trustee shall receive an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any
such consolidation, merger, sale, conveyance, transfer or lease and any such assumption and, if a supplemental indenture is required in connection with such transaction, such supplemental indenture, complies with the provisions of this Article XI
and such Opinion of Counsel will state such supplemental indenture, if any, constitutes the legal, valid and binding obligation of the resulting, surviving or transferring Person, as applicable. 

ARTICLE XII 
 NO PERSONAL LIABILITY
OF DIRECTORS, OFFICERS, EMPLOYEES OR 
 STOCKHOLDERS 

Section 12.01    Indenture and Notes Solely Corporate Obligations. None of the Company’s past, present or
future directors, officers, employees or stockholders, as such, will have any liability for any of the obligations under the Notes or this Indenture or for any claim based on, or in respect or by reason of, such obligations or their creation. By
accepting a Note, each Holder waives and releases all such liability. This waiver and release is part of the consideration for the issue of the Notes. 

ARTICLE XIII 
 CONVERSION OF NOTES

 Section 13.01    Conversion Privilege. (a) Subject to and upon compliance with the provisions of
this Article XIII, each Holder of a Note shall have the right, at such Holder’s option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or an integral multiple thereof) of such Note (i) subject to
satisfaction of the conditions described in Section 13.01(b), at any time prior to the close of business on the Business Day immediately preceding March 1, 2023, under the circumstances and during the periods set forth in Section 13.01(b), and
(ii) irrespective of the conditions described in Section 13.01(b), on or after March 1, 2023, and prior to the close of business on the Scheduled Trading Day immediately preceding the Maturity Date, in each case, at an initial conversion
rate of 21.6275 shares of Common Stock (subject to adjustment as provided in Section 13.04, the “Conversion Rate”) per $1,000 principal amount of Notes (subject to the settlement provisions of Section 13.02, the
“Conversion Obligation”). 
 (b) (i) Prior to the close of business on the Business Day immediately preceding
March 1, 2023, the Notes may be surrendered for conversion during the five Business-Day period immediately after any 10 consecutive Trading-Day period (the
“Measurement Period”) in which the Trading Price per $1,000 principal amount of Notes, as determined following a request 

  
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by a Holder of Notes in accordance with this subsection (b)(i), for each Trading Day of the Measurement Period was less than 98% of the product of the Last Reported Sale Price of the Common Stock
and the Conversion Rate on such Trading Day. The Trading Prices shall be determined by the Bid Solicitation Agent pursuant to this subsection (b)(i) and the definition of Trading Price set forth in this Indenture. The Company shall provide written
notice to the Bid Solicitation Agent (if other than the Company) of the three independent nationally recognized securities dealers selected by the Company pursuant to the definition of Trading Price, along with appropriate contact information for
each. The Bid Solicitation Agent (if other than the Company) shall have no obligation to determine the Trading Price per $1,000 principal amount of Notes unless the Company has requested such determination, and the Company shall have no obligation
to make such request (or, if the Company is acting as Bid Solicitation Agent, the Company shall have no obligation to determine the Trading Price per $1,000 principal amount of Notes) unless a Holder of at least $5,000,000 aggregate principal amount
of Notes provides the Company with reasonable evidence that the Trading Price per $1,000 principal amount of Notes would be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate, at which time the
Company shall instruct the Bid Solicitation Agent (if other than the Company) to determine, or if the Company is acting as Bid Solicitation Agent, the Company shall determine, the Trading Price per $1,000 principal amount of Notes beginning on the
next Trading Day and on each successive Trading Day until the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate. If
(x) the Company is not acting as Bid Solicitation Agent, and the Company does not instruct the Bid Solicitation Agent to determine the Trading Price per $1,000 principal amount of Notes when obligated as provided in the preceding sentence, or
if the Company instructs the Bid Solicitation Agent to obtain bids and the Bid Solicitation Agent fails to make such determination, or (y) the Company is acting as Bid Solicitation Agent and the Company fails to make such determination when
obligated as provided in the preceding sentence, then, in either case, the Trading Price per $1,000 principal amount of Notes shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion
Rate on each Trading Day of such failure. If the Trading Price condition set forth above has been met, the Company shall so notify the Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing. If, at any time after the
Trading Price condition set forth above has been met, the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the applicable Conversion Rate, the
Company shall so notify the Holders of the Notes, the Trustee and the Conversion Agent (if other than the Trustee) in writing. 

(ii)    If, prior to the close of business on the Business Day immediately preceding March 1, 2023, the Company
elects to: 
 (A)    issue to all or substantially all holders of its Common Stock any rights, options or warrants
entitling them, for a period of not more than 45 calendar days after the announcement date of such issuance, to subscribe for or purchase shares of its Common Stock at a price per share that is less than the average of the Last Reported Sale Prices
of the Common Stock for the 10 consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the date of announcement of such issuance; or 

  
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 (B)    distribute to all or substantially all holders of its Common Stock
the Company’s assets, debt securities or rights to purchase securities of the Company, which distribution has a per share value, as reasonably determined by the Board of Directors, exceeding 10% of the Last Reported Sale Price of the Common
Stock on the Trading Day preceding the date of announcement for such distribution, 
 then, in either case, the Company shall notify all Holders of the
Notes, the Trustee and the Conversion Agent (if other than the Trustee) at least 45 Scheduled Trading Days prior to the Ex-Dividend Date for such issuance or distribution. Once the Company has given such
notice, the Notes may be surrendered for conversion at any time until the earlier of (1) the close of business on the Business Day immediately preceding the Ex-Dividend Date for such issuance or
distribution and (2) the Company’s announcement that such issuance or distribution will not take place, even if the Notes are not otherwise convertible at such time. For purposes of this Section 13.01(b)(ii)(A) and Section 13.04(b), in
determining whether any rights, options or warrants entitle the holders to subscribe for or purchase shares of the Common Stock at less than such average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there
shall be taken into account any consideration received by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board
of Directors. 
 (iii)    If (x) a transaction or event occurs that constitutes a Fundamental Change or Make-Whole
Fundamental Change or (y) the Company is a party to a consolidation, merger, binding share exchange, or transfer or lease of all or substantially all of the Company’s assets, pursuant to which the Common Stock would be converted into cash,
securities or other assets, in each case prior to the close of business on the Business Day immediately preceding March 1, 2023, regardless of whether a Holder has the right to require the Company to repurchase the Notes pursuant to
Section 14.01, then the Notes may be surrendered for conversion at any time from or after the effective date of the transaction or event until the earlier of (A) 35 Trading Days after the actual effective date of such transaction or event (or,
if later, the date on which the Company provides notice of such transaction or event) or, if such transaction or event also constitutes a Fundamental Change, until the related Fundamental Change Repurchase Date, and (B) the Scheduled Trading
Day immediately preceding the Maturity Date. The Company shall notify Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing of such transaction or event and the related conversion right as promptly as practicable
following the date the Company publicly announces such transaction or event and in no event later than the actual effective date of such transaction or event. 

(iv)    Prior to the close of business on the Business Day immediately preceding March 1, 2023, the Notes may be
surrendered for conversion during any calendar quarter commencing after the calendar quarter ending on September 30, 2017 (and only during such calendar quarter), if the Last Reported Sale Price of the Common Stock for at least 20 Trading Days
(whether or not consecutive) during the period of 30 consecutive Trading Days ending on, and including, the last Trading Day of the immediately preceding calendar quarter is greater than 130% of the Conversion Price on each applicable Trading Day.
Neither the Trustee nor the Conversion Agent shall have any duty to monitor such sale price. 

  
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 (v)    If the Company calls any Note for redemption, then the Holder of such
Note may convert such Note at any time prior to the close of business on the Business Day immediately before the related Redemption Date (or, if the Company fails to pay the Redemption Price due on such Redemption Date in full, at any time until
such time as the Company pays such Redemption Price in full). 
 Section 13.02    Conversion Procedure;
Settlement Upon Conversion. 
 (a)    Except as provided in Section 13.03(b) and Section 13.07(a), upon
conversion of any Note, the Company shall pay or deliver, as applicable, cash (“Cash Settlement”), shares of Common Stock, together with cash, if applicable, in lieu of delivering any fractional share of Common Stock in accordance
with subsection (j) of this Section 13.02 (“Physical Settlement”) or a combination of cash and shares of Common Stock, together with cash, if applicable, in lieu of delivering any fractional share of Common Stock in
accordance with subsection (j) of this Section 13.02 (“Combination Settlement”), at the Company’s election, as described below. 

(i)    All conversions with a Conversion Date occurring on or after March 1, 2023, shall be settled using the same
Settlement Method. For all conversions with a Conversion Date occurring prior to March 1, 2023, the Company shall use the same Settlement Method for all conversions occurring on the same Conversion Date, but the Company shall not have any
obligation to use the same Settlement Method with respect to conversions that occur on different Conversion Dates. However, notwithstanding anything to the contrary in this clause (i), if the Company calls any Notes for redemption, then (x) the
Company will specify in the related Redemption Notice the Settlement Method that will apply to all conversions of Notes with a Conversion Date that occurs on or after the Redemption Notice Date and before the related Redemption Date; and (y) if
the related Redemption Date is on or after March 1, 2023, then such Settlement Method must be the same Settlement Method that applies to all conversions with a Conversion Date that occurs on or after March 1, 2023. If the Company elects a
Settlement Method, the Company shall notify converting Holders, the Trustee and the Conversion Agent (if other than the Trustee), in writing, of the Settlement Method it has selected (the “Settlement Notice”) no later than the close
of business on the Trading Day immediately following the related Conversion Date (or, in the case of any conversions with a Conversion Date occurring on or after March 1, 2023, no later than the open of business on March 1, 2023). If the
Company does not timely elect a Settlement Method as provided in this clause (i), then the Company shall be deemed to have elected the Default Settlement Method. If the Company timely elects Combination Settlement with respect to a conversion but
does not timely elect the applicable Specified Dollar Amount, then the Specified Dollar Amount for such conversion will be deemed to be $1,000 per $1,000 principal amount of Notes. For the avoidance of doubt, the Company’s failure to timely
elect a Settlement Method or specify the applicable Specified Dollar amount will not constitute a Default. 

(ii)    The cash, shares of Common Stock or combination of cash and shares of Common Stock in respect of any conversion of
each $1,000 principal amount of Notes (the “Settlement Amount”) shall be computed as follows: 

(A)    If Physical Settlement applies, a number of shares of the Company’s Common Stock equal to the Conversion Rate
in effect on the Conversion Date (and 

  
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cash in lieu of any fractional share of Common Stock in accordance with subsection (j) of this Section 13.02); 

(B)    If Cash Settlement applies, cash in an amount equal to the sum of the Daily Conversion Values for each of the 40
consecutive VWAP Trading Days in the relevant Observation Period; and 
 (C)    If Combination Settlement applies, a
Settlement Amount equal to the sum of the Daily Settlement Amounts for each of the 40 consecutive VWAP Trading Days in the relevant Observation Period. 

(iii)    The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if applicable) shall be determined
by the Company promptly following the last day of the applicable Observation Period. Promptly after such determination of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and the amount of cash payable in lieu of any
fractional share, the Company shall notify the Trustee and the Conversion Agent (if other than the Trustee) in writing of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and the amount of cash payable in lieu of
fractional shares of Common Stock. The Trustee and the Conversion Agent (if other than the Trustee) shall have no responsibility for any such determination. 

(b)    Subject to Section 13.02(e), to convert a Note as set forth above, the Holder thereof shall (i) in the case of
a Global Note, comply with the procedures of the Depositary in effect at that time and, if required, pay funds equal to interest payable on the next Interest Payment as set forth in Section 13.02(h) and, if required, pay all transfer and similar
taxes, if any as provided in Sections 13.02(d) or (e), and (ii) in the case of a Physical Note (1) complete, manually sign and deliver an irrevocable notice to the Conversion Agent as set forth in the Form of Notice of Conversion (or a
facsimile thereof) (a “Notice of Conversion”) at the office of the Conversion Agent and state in writing therein the principal amount of Notes to be converted and the name or names (with addresses) in which such Holder wishes the
certificate or certificates for any shares of Common Stock to be delivered upon settlement of the Conversion Obligation to be registered, (2) surrender such Notes, duly endorsed to the Company or in blank (and accompanied by appropriate
endorsement and transfer documents), at the office of the Conversion Agent, (3) if required, furnish appropriate endorsements and transfer documents, (4) if required, pay all transfer or similar taxes and (5) if required, pay funds
equal to interest payable on the next Interest Payment Date as set forth in Section 13.02(h). The Trustee (and, if different, the Conversion Agent) shall notify the Company of any conversion pursuant to this Article XIII on the Conversion Date for
such conversion. No Notice of Conversion with respect to any Notes may be surrendered by a Holder thereof if such Holder has also delivered a Fundamental Change Repurchase Notice to the Company in respect of such Notes and not validly withdrawn such
Fundamental Change Repurchase Notice in accordance with Section 14.02. Nothing herein shall preclude any withholding of tax required by law. 

If more than one Note shall be surrendered for conversion at one time by the same Holder, the Conversion Obligation with respect to such Notes
shall be computed on the basis of the aggregate principal amount of the Notes (or specified portions thereof to the extent permitted thereby) so surrendered. 

  
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 (c)    A Note shall be deemed to have been converted immediately prior to the
close of business on the date (the “Conversion Date”) that the Holder has complied with the requirements set forth in subsection (b) above. Except as described in Sections 13.03, 13.04, and 13.07, the Company shall pay or
deliver, as applicable, the consideration due in respect of the Conversion Obligation as follows: (i) if Cash Settlement or Combination Settlement applies, on or before the third (or, if the T+2 Effective Date has occurred by the last VWAP
Trading Day of the Observation Period for such conversion, the second) Business Day immediately after the last VWAP Trading Day of such Observation Period; and (ii) if Physical Settlement applies, on or before the third (or, if the T+2
Effective Date has occurred by the Conversion Date for such conversion, the second) Business Day immediately after such Conversion Date. If any shares of Common Stock are due to converting Holders, the Company shall issue or cause to be issued, and
deliver to the Conversion Agent or to such Holder, or such Holder’s nominee or nominees, certificates or a book-entry transfer through the Depositary for the full number of shares of Common Stock to which such Holder shall be entitled in
satisfaction of the Company’s Conversion Obligation. 
 (d)    In case any Note shall be surrendered for partial
conversion, the Company shall execute and the Trustee shall authenticate and deliver to or upon the written order of the Holder of the Note so surrendered a new Note or Notes in authorized denominations in an aggregate principal amount equal to the
unconverted portion of the surrendered Note, without payment of any service charge by the converting Holder but with payment of a sum sufficient to cover any transfer tax or similar governmental charge required by law or that may be imposed in
connection therewith as a result of the name of the Holder of the new Notes issued upon such conversion being different from the name of the Holder of the old Notes surrendered for such conversion. 

(e)    If a Holder submits a Note for conversion, the Company shall pay any documentary, stamp or similar issue or
transfer tax due on the issue of any shares of Common Stock upon conversion, unless the tax is due because the Holder requests such shares to be issued in a name other than the Holder’s name, in which case the Holder shall pay that tax. The
Conversion Agent may refuse to deliver the certificates representing the shares of Common Stock being issued in a name other than the Holder’s name until the Trustee receives a sum sufficient to pay any tax that is due by such Holder in
accordance with the immediately preceding sentence. 
 (f)    Except as provided in Section 13.04, no adjustment
shall be made for dividends on any shares issued upon the conversion of any Note as provided in this Article XIII. 

(g)    Upon the conversion of an interest in a Global Note, the Trustee, or the Custodian at the direction of the Trustee,
shall make a notation on such Global Note as to the reduction in the principal amount represented thereby. The Company shall notify the Trustee in writing of any conversion of Notes effected through any Conversion Agent other than the Trustee. 

(h)    Upon conversion, a Holder shall not receive any separate cash payment for accrued and unpaid interest, if any,
except as set forth below. The Company’s settlement of the Conversion Obligation shall be deemed to satisfy in full its obligation to pay the principal amount of the Note and accrued and unpaid interest, if any, to, but excluding, the relevant


  
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Conversion Date. As a result, accrued and unpaid interest, if any, to, but excluding, such Conversion Date shall be deemed to be paid in full rather than cancelled, extinguished or forfeited.
Upon a conversion of Notes into a combination of cash and shares of the Company’s Common Stock, such accrued and unpaid interest will be deemed to be paid first out of the cash paid upon such conversion. Notwithstanding the foregoing, if Notes
are converted after the close of business on a Regular Record Date, Holders of such Notes as of the close of business on such Regular Record Date will receive the full amount of interest payable on such Notes on the corresponding Interest Payment
Date notwithstanding the conversion. Notes surrendered for conversion during the period from the close of business on any Regular Record Date to the open of business on the immediately following Interest Payment Date must be accompanied by funds
equal to the amount of interest payable on the Notes so converted; provided that no such payment shall be required (1) for conversions following the Regular Record Date immediately preceding the Maturity Date; (2) if the Company has
specified a Redemption Date that is after such Regular Record Date and on or prior to the Business Day immediately following such Interest Payment Date; (3) if the Company has specified a Fundamental Change Repurchase Date that is after such
Regular Record Date and on or prior to the Business Day immediately following such Interest Payment Date; or (4) to the extent of any Defaulted Amounts, if any Defaulted Amounts exists at the time of conversion with respect to such Note.
Therefore, for the avoidance of doubt, all Holders of Notes at the close of business on the Regular Record Date immediately preceding the Maturity Date, the Redemption Date or the Fundamental Change Repurchase Date described in (1), (2) and
(3) of this paragraph will receive the full interest payment due (accrued to the next Interest Payment Date) on the next Interest Payment Date, regardless of whether their Notes have been converted, redeemed or repurchased following such
Regular Record Date. 
 (i)    The Person in whose name the certificate for any shares of Common Stock delivered upon
conversion is registered shall be treated as a stockholder of record as of the close of business on the relevant Conversion Date (if the Company elects to satisfy the related Conversion Obligation by Physical Settlement) or the last VWAP Trading Day
of the relevant Observation Period (if the Company elects (or is deemed to have elected) to satisfy the related Conversion Obligation by Combination Settlement), as the case may be, subject to Sections 13.04(c) and 13.04(e). Upon a conversion of
Notes, such Person shall no longer be a Holder of such Notes surrendered for conversion. 
 (j)    The Company shall not
issue any fractional share of Common Stock upon conversion of the Notes and shall instead pay cash in lieu of any fractional share of Common Stock issuable upon conversion based on, in the case of Combination Settlement, the Daily VWAP on the last
VWAP Trading Day of the applicable Observation Period, or, in the case of Physical Settlement, based on the daily VWAP on the relevant Conversion Date (or, if such Conversion Date is not a VWAP Trading Day, the immediately preceding VWAP Trading
Day). For each Note surrendered for conversion, if the Company has elected (or is deemed to have elected) Combination Settlement, the full number of shares that shall be issued upon conversion thereof, shall be computed on the basis of the aggregate
Daily Settlement Amounts for the applicable Observation Period, and any fractional shares remaining after such computation shall be paid in cash. 

  
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 Section 13.03    Increased Conversion Rate Applicable to Certain
Notes Surrendered in Connection with Make-Whole Fundamental Changes. (a) If a Make-Whole Fundamental Change occurs prior to the Maturity Date and a Holder elects to convert its Notes in connection with such Make-Whole Fundamental Change,
the Company shall, under the circumstances described below, increase the Conversion Rate for the Notes so surrendered for conversion by a number of additional shares of Common Stock (the “Additional Shares”), as described below. A
conversion of Notes shall be deemed for these purposes to be “in connection with” such Make-Whole Fundamental Change if the applicable Conversion Date occurs during the period from, and including, the Effective Date of the Make-Whole
Fundamental Change up to, and including, the Business Day immediately prior to the related Fundamental Change Repurchase Date (or, in the case of a Make-Whole Fundamental Change that would have been a Fundamental Change but for the Majority
Ownership Exception, the 35th Trading Day immediately following the Effective Date of such Make-Whole Fundamental Change). 

(b)    Upon the conversion of any Notes in connection with a Make-Whole Fundamental Change pursuant to Section
13.01(b)(iii), the Company shall pay or deliver, as applicable, the consideration due in respect of such conversion in accordance with Section 13.02 based on the Conversion Rate as increased to reflect the Additional Shares pursuant to the
table below; provided, however, that if, at the effective time of a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Reference Property following such Make-Whole Fundamental Change
is composed entirely of cash, for any conversion of Notes following the Effective Date of such Make-Whole Fundamental Change, the Conversion Obligation shall be calculated based solely on the Stock Price for the transaction and shall be deemed to be
an amount of cash per $1,000 principal amount of converted Notes equal to the Conversion Rate (including any adjustment for Additional Shares), multiplied by such Stock Price. In such event, the Conversion Obligation will be determined and
shall be paid to Holders in cash on the tenth Business Day following the Conversion Date. The Company shall notify the Holders, the Trustee and the Conversion Agent (if other than the Trustee) of the Effective Date of any Make-Whole Fundamental
Change no later than five Business Days after such Effective Date. 
 (c)    The number of Additional Shares, if any, by
which the Conversion Rate shall be increased shall be determined by reference to the table below, based on the date on which the Make-Whole Fundamental Change occurs or becomes effective (the “Effective Date”) and the price (the
“Stock Price”) paid (or deemed to be paid) per share of the Common Stock in the Make-Whole Fundamental Change. If the holders of the Common Stock receive in exchange for their Common Stock only cash in a Make-Whole Fundamental
Change described in clause (b) of the definition of Fundamental Change, the Stock Price shall be the cash amount paid per share. Otherwise, the Stock Price shall be the average of the Last Reported Sale Prices of the Common Stock over the five
consecutive Trading Days ending on, and including, the Trading Day immediately preceding the Effective Date of the Make-Whole Fundamental Change. The Board of Directors shall make appropriate adjustments to the Stock Price, in its good faith
determination, to account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date of the event occurs, during
such five consecutive Trading-Day period. 

  
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 (d)    The Stock Prices set forth in the column headings of the table below
shall be adjusted as of any date on which the Conversion Rate of the Notes is otherwise adjusted. The adjusted Stock Prices shall equal the Stock Prices applicable immediately prior to such adjustment, multiplied by a fraction, the numerator
of which is the Conversion Rate immediately prior to such adjustment giving rise to the Stock Price adjustment and the denominator of which is the Conversion Rate as so adjusted. The number of Additional Shares set forth in the table below shall be
adjusted in the same manner and at the same time as the Conversion Rate as set forth in Section 13.04. 

(e)    The following table sets forth the number of Additional Shares to be received per $1,000 principal amount of Notes
pursuant to this Section 13.03 for each Stock Price and Effective Date set forth below: 
  

																																													
	 	  	Stock Price	 
	 Effective Date
	  	$34.25	 	  	$40.00	 	  	$46.24	 	  	$60.11	 	  	$75.00	 	  	$90.00	 	  	$105.00	 	  	$120.00	 	  	$135.00	 	  	$150.00	 	  	$165.00	 
	 May 26, 2017
	  	 	7.5695	 	  	 	5.9044	 	  	 	4.3821	 	  	 	2.5842	 	  	 	1.7047	 	  	 	1.2559	 	  	 	0.9915	 	  	 	0.8200	 	  	 	0.6951	 	  	 	0.5993	 	  	 	0.5230	 
	 June 1, 2018
	  	 	7.5695	 	  	 	5.5668	 	  	 	3.9796	 	  	 	2.1585	 	  	 	1.3599	 	  	 	0.9781	 	  	 	0.7688	 	  	 	0.6359	 	  	 	0.5403	 	  	 	0.4672	 	  	 	0.4087	 
	 June 1, 2019
	  	 	7.5695	 	  	 	5.1972	 	  	 	3.5156	 	  	 	1.6913	 	  	 	0.9613	 	  	 	0.6684	 	  	 	0.5251	 	  	 	0.4362	 	  	 	0.3725	 	  	 	0.3235	 	  	 	0.2839	 
	 June 1, 2020
	  	 	7.5695	 	  	 	4.8174	 	  	 	2.9756	 	  	 	1.0590	 	  	 	0.4914	 	  	 	0.3310	 	  	 	0.2657	 	  	 	0.2242	 	  	 	0.1930	 	  	 	0.1683	 	  	 	0.1481	 
	 June 1, 2021
	  	 	7.5695	 	  	 	4.5228	 	  	 	2.5087	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 
	 June 1, 2022
	  	 	7.5695	 	  	 	4.0023	 	  	 	1.9960	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 
	 June 1, 2023
	  	 	7.5695	 	  	 	3.3725	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 	  	 	—  	 

 (f)    The exact Stock Prices and Effective Dates may not be set forth in the table above,
in which case: 
 (i)    if the Stock Price is between two Stock Prices in the table above or the Effective Date is
between two Effective Dates in the table above, the number of Additional Shares shall be determined by a straight-line interpolation between the number of Additional Shares set forth for the higher and lower Stock Prices and the earlier and later
Effective Dates, as applicable, based on a 365- or 366-day year, as applicable; 

(ii)    if the Stock Price is greater than $165.00 per share (subject to adjustment in the same manner as the Stock Prices
set forth in the column headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the Conversion Rate; and 

(iii)    if the Stock Price is less than $34.25 per share (subject to adjustment in the same manner as the Stock Prices
set forth in the column headings of the table above pursuant to subsection (d) above), no Additional Shares shall be added to the Conversion Rate. 

Notwithstanding the foregoing, in no event shall the Conversion Rate exceed 29.1970 per $1,000 principal amount of Notes, subject to
adjustment in the same manner as the Conversion Rate pursuant to Section 13.04. 
 (g)    Nothing in this
Section 13.03 shall prevent an adjustment to the Conversion Rate pursuant to Section 13.04 in respect of a Make-Whole Fundamental Change. 

  
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 Section 13.04    Adjustment of Conversion Rate. The Conversion
Rate shall be adjusted from time to time by the Company if any of the following events occurs, except that the Company shall not make any adjustments to the Conversion Rate if Holders of the Notes participate (other than in the case of a share split
or share combination), at the same time and upon the same terms as holders of the Common Stock and solely as a result of holding the Notes, in any of the transactions described in this Section 13.04, without having to convert their Notes, as if
they held a number of shares of Common Stock equal to the Conversion Rate, multiplied by the principal amount (expressed in thousands) of Notes held by such Holder. 

(a)    If the Company exclusively issues shares of Common Stock as a dividend or distribution on shares of its Common
Stock, or if the Company effects a share split or share combination, the Conversion Rate shall be adjusted based on the following formula: 
  





 
 where, 
 CR0 = the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date of such dividend or distribution, or immediately prior to
the open of business on the Effective Date of such share split or share combination, as applicable; 

CR1 = the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date or Effective Date; 
 OS0 = the number of shares
of Common Stock outstanding immediately prior to the open of business on such Ex-Dividend Date or Effective Date; and 

OS1 = the number of shares of Common Stock outstanding immediately after giving effect to such
dividend, distribution, share split or share combination. 
 Any adjustment made under this Section 13.04(a) shall become effective
immediately after the open of business on the Ex-Dividend Date for such dividend or distribution, or immediately after the open of business on the Effective Date for such share split or share combination, as
applicable. If any dividend or distribution of the type described in this Section 13.04(a) is declared but not so paid or made, the Conversion Rate shall be immediately readjusted, effective as of the date the Board of Directors determines not to
pay such dividend or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared. 

(b)    If the Company issues to all or substantially all holders of its Common Stock any rights, options or warrants
entitling them, for a period of not more than 45 calendar days after the announcement date of such issuance, to subscribe for or purchase shares of the Common Stock at a price per share that is less than the average of the Last Reported Sale Prices
of the Common Stock for the 10 consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the date of announcement of such issuance, the Conversion Rate shall be increased
based on the following formula: 

  
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 where, 
 CR0 = the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such issuance; 

CR1 = the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date; 
 OS0 = the number of shares of Common Stock
outstanding immediately prior to the open of business on such Ex-Dividend Date; 
 X = the total number of shares of
Common Stock issuable pursuant to such rights, options or warrants; and 
 Y = the number of shares of Common Stock equal to the aggregate price payable to
exercise such rights, options or warrants, divided by the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading-Day period ending on, and including, the Trading
Day immediately preceding the date of announcement of the issuance of such rights, options or warrants. 
 Any increase made under this
Section 13.04(b) shall be made successively whenever any such rights, options or warrants are issued and shall become effective immediately after the open of business on the Ex-Dividend Date for such issuance.
To the extent that shares of the Common Stock are not delivered after the expiration of such rights, options or warrants, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect had the increase with respect to the
issuance of such rights, options or warrants been made on the basis of delivery of only the number of shares of Common Stock actually delivered. If such rights, options or warrants are not so issued, the Conversion Rate shall be decreased to the
Conversion Rate that would then be in effect if such Ex-Dividend Date for such issuance had not occurred. 

For purposes of this Section 13.04(b) and Section 13.01(b)(ii)(A), in determining whether any rights, options or warrants entitle the holders
to subscribe for or purchase shares of the Common Stock at less than such average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading-Day period ending on, and including, the
Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into account any consideration received by the Company for such
rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors. 

(c)    If the Company distributes shares of its Capital Stock, evidences of its indebtedness, other assets or property or
rights, options or warrants to acquire its Capital Stock or other securities, to all or substantially all holders of the Common Stock, excluding (i) dividends, distributions or issuances described in Section 13.04(a) or Section 13.04(b), (ii)


  
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dividends or distributions paid exclusively in cash as described in Section 13.04(d), (iii) distributions of Reference Property in a Common Stock Change Event described in Section 13.07; and
(iv) Spin-Offs as to which the provisions set forth below in this Section 13.04(c) shall apply (any of such shares of Capital Stock, evidences of indebtedness, other assets or property or rights, options or warrants to acquire Capital Stock or
other securities of the Company, the “Distributed Property”), then the Conversion Rate shall be increased based on the following formula: 
  





 
 where, 
 CR0 = the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such distribution; 

CR1 = the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date; 
 SP0 = the average of the Last Reported Sale
Prices of the Common Stock over the 10 consecutive Trading-Day period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for such
distribution; and 
 FMV = the fair market value (as determined by the Board of Directors) of the Distributed Property with respect to each outstanding
share of the Common Stock on the Ex-Dividend Date for such distribution. 
 Any increase made under
the portion of this Section 13.04(c) above shall become effective immediately after the open of business on the Ex-Dividend Date for such distribution. 

Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same terms as
holders of the Common Stock receive the Distributed Property, the amount and kind of Distributed Property such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for the distribution. If the Board of Directors determines the “FMV” (as defined above) of any distribution for purposes of this Section 13.04(c) by reference to the actual or when-issued
trading market for any securities, it shall in doing so consider the prices in such market over the same period used in computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive
Trading-Day period ending on, and including, the Trading Day immediately preceding the record date for such distribution. 

With respect to an adjustment pursuant to this Section 13.04(c) where there has been a payment of a dividend or other distribution on the
Common Stock of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary or other business unit of the Company, that are, or, when issued, will be, listed or admitted for trading on a U.S.


  
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national securities exchange (a “Spin-Off”), the Conversion Rate shall be increased based on the following formula: 

 
 



 
 where, 
 CR0 = the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date of the Spin-Off;

 CR1 = the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date of the Spin-Off; 
 FMV0 = the average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to holders of the Common Stock applicable to one share of the Common Stock (determined by
reference to the definition of Last Reported Sale Price as set forth in Section 1.01 as if references therein to Common Stock were to such Capital Stock or similar equity interest) over the first 10 consecutive Trading Days beginning on, and
including, the Ex-Dividend Date of the Spin-Off (the “Spin-Off Valuation Period”); and 

MP0 = the average of the Last Reported Sale Prices of the Common Stock over the Spin-Off Valuation Period. 
 The adjustment to the Conversion Rate pursuant to the preceding paragraph will be calculated
as of the end of the Spin-Off Valuation Period, but shall be given effect immediately after the open of business on the Ex-Dividend Date of the Spin-Off, with retroactive effect. Notwithstanding anything to the contrary, (i) if the last VWAP Trading Day of an Observation Period for a Note whose conversion is to be settled pursuant to Cash Settlement or
Combination Settlement occurs within the Spin-Off Valuation Period for any Spin-Off, then, solely for purposes of determining the consideration due in respect of such
conversion, such Spin-Off Valuation Period will be deemed to be the period from, and including, the Ex-Dividend Date for such
Spin-Off to, and including, the last VWAP Trading Day in such Observation Period (or, if such VWAP Trading Day is not a Trading Day, the immediately preceding Trading Day); and (ii) if the Conversion Date
of a Note whose conversion is to be settled pursuant to Physical Settlement occurs within the Spin-Off Valuation Period for a Spin-Off, then, solely for purposes of
determining the consideration due in respect of such conversion, such Spin-Off Valuation Period will be deemed to be the period from, and including, the Ex-Dividend Date
for such Spin-Off to, and including, such Conversion Date (or, if such Conversion Date is not a Trading Day, the immediately preceding Trading Day). 

If any distribution of the type described in this Section 13.04(c) is declared but not so made, the Conversion Rate shall be immediately readjusted, effective
as of the date the Board of Directors or a committee thereof determines not to make such distribution, to the Conversion Rate that would then be in effect if such distribution had not been declared. 

  
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 (d)    If any cash dividend or distribution is made to all or substantially
all holders of the Common Stock (other than a distribution as to which an adjustment is effected pursuant to Section 13.04(e)), the Conversion Rate shall be adjusted based on the following formula: 

 
 



 
 where, 
 CR0 = the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such dividend or distribution; 

CR1 = the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date for such dividend or distribution; 
 SP0 = the
Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the Ex-Dividend Date for such dividend or distribution; and 

C = the amount in cash per share the Company distributes to all or substantially all holders of its Common Stock. 

Any increase pursuant to this Section 13.04(d) shall become effective immediately after the open of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the Board of Directors determines not to make or
pay such dividend or distribution, to be the Conversion Rate that would then be in effect if such dividend or distribution had not been declared. 

Notwithstanding the foregoing, if “C” (as defined above) is equal to or greater than “SP0” (as defined above), in lieu of the foregoing increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount of Notes, at the same time and upon the same terms as
holders of shares of the Common Stock, the amount of cash that such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate on the record date for such cash dividend or distribution. 

(e)    If the Company makes or any of its Subsidiaries makes a payment to holders of the Common Stock in respect of a
tender or exchange offer (other than an odd-lot offer) for the Common Stock, to the extent that the cash and value of any other consideration included in the payment per share of the Common Stock exceeds the
average of the Last Reported Sale Prices of the Common Stock over the period (the “Tender/Exchange Offer Valuation Period”) of 10 consecutive Trading Days commencing on, and including, the Trading Day immediately following the last
date (the “Expiration Date”) on which tenders or exchanges may be made pursuant to such tender or exchange offer, the Conversion Rate shall be increased based on the following formula: 

 
 



 

  
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 CR0 = the Conversion Rate in effect immediately prior to
the open of business on the Trading Day next succeeding the Expiration Date; 
 CR1 = the Conversion
Rate in effect immediately after the open of business on the Trading Day next succeeding the Expiration Date; 
 AC = the aggregate value of all cash and
any other consideration (determined as of the Expiration Date by the Board of Directors) paid or payable for shares of Common Stock purchased in such tender or exchange offer; 

OS0 = the number of shares of Common Stock outstanding immediately prior to the date such tender or
exchange offer expires (prior to giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or exchange offer); 

OS1 = the number of shares of Common Stock outstanding immediately after the date such tender or
exchange offer expires (after giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or exchange offer); and 

SP1 = the average of the Last Reported Sale Prices of the Common Stock over the Tender/Exchange Offer
Valuation Period. 
 The adjustment to the Conversion Rate pursuant to this Section 13.04(e) shall be calculated as of the end of the
Tender/Exchange Offer Valuation Period but will be given effect immediately after the open of business on the Trading Day next succeeding the Expiration Date. Notwithstanding anything to the contrary, (i) if the last VWAP Trading Day of the
Observation Period for a Note whose conversion is to be settled pursuant to Cash Settlement or Combination Settlement occurs within the Tender/Exchange Offer Valuation Period for such tender or exchange offer, then, solely for purposes of
determining the consideration due in respect of such conversion, such Tender/Exchange Offer Valuation Period will be deemed to be the period from, and including, the Trading Day immediately following the Expiration Date for such tender or exchange
offer to, and including, the last VWAP Trading Day in such Observation Period (or, if such VWAP Trading Day is not a Trading Day, the immediately preceding Trading Day); and (ii) if the Conversion Date of a Note whose conversion is to be
settled pursuant to Physical Settlement occurs within the Tender/Exchange Offer Valuation Period for such tender or exchange offer, then, solely for purposes of determining the consideration due in respect of such conversion, such Tender/Exchange
Offer Valuation Period will be deemed to be the period from, and including, the Trading Day immediately following the Expiration Date for such tender or exchange offer to, and including, such Conversion Date (or, if such Conversion Date is not a
Trading Day, the immediately preceding Trading Day). 
 To the extent such tender or exchange offer is announced but not consummated
(including as a result of being precluded from consummating such tender or exchange offer under applicable law), or any purchases or exchanges of shares of Common Stock in such tender or exchange offer are rescinded, the Conversion Rate will be
readjusted to the Conversion Rate that would then be in effect had the adjustment been made on the basis of only the purchases or exchanges of shares of Common Stock, if any, actually made, and not rescinded, in such tender or exchange offer. 

  
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 (f)    Notwithstanding anything to the contrary, if a Holder converts a Note
and: 
 (i)    Physical Settlement or Combination Settlement applies to such conversion; 

(ii)    the record date, Effective Date or Expiration Date for any event that requires an adjustment to the Conversion
Rate under any of clauses (a), (b), (c), (d) and (e) of this Section 13.04 has occurred on or before the Conversion Date for such conversion (in the case of Physical Settlement) or on or before any VWAP Trading Day in the Observation
Period for such conversion (in the case of Combination Settlement), but an adjustment to the Conversion Rate for such event has not yet become effective as of such Conversion Date or VWAP Trading Day, as applicable; 

(iii)    the consideration due upon such conversion (in the case of Physical Settlement) or due in respect of such VWAP
Trading Day (in the case of Combination Settlement) includes any whole shares of Common Stock; and 
 (iv)    such
shares of Common Stock are not entitled to participate in such event (because they were not held on the related record date or otherwise), 
 then, solely
for purposes of such conversion, the Company will, without duplication, give effect to such adjustment on such Conversion Date (in the case of Physical Settlement) or such VWAP Trading Day (in the case of Combination Settlement). In such case, if
the date the Company is otherwise required to deliver the consideration due upon such conversion is before the first date on which the amount of such adjustment can be determined, then the Company will delay delivering the consideration due upon
such consideration until the third (or, if the T+2 Effective Date has occurred by such first date, the second) Business Day immediately after such first date. 

(g)    Notwithstanding anything to the contrary, if: 

(i)    a Conversion Rate adjustment for any dividend or distribution becomes effective on any Ex-Dividend date pursuant to the provisions described in any of clauses (a), (b), (c), (d) and (e) of this Section 13.04; 

(ii)    a Note is to be converted pursuant to Physical Settlement or Combination Settlement; 

(iii)    the Conversion Date for such conversion (in the case of Physical Settlement) or any VWAP Trading Day in the
Observation Period for such conversion (in the case of Combination Settlement) occurs on or after such Ex-Dividend Date and on or before the related record date; 

(iv)    the consideration due upon such conversion (in the case of Physical Settlement) or due with respect to such VWAP
Trading Day (in the case of Combination Settlement) includes any whole shares of Common Stock based on a Conversion Rate that is adjusted for such dividend or distribution; and 

  
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 (v)    such shares would be entitled to participate in such dividend or
distribution, 
 then (x) such Conversion Rate adjustment will not be given effect for such conversion (in the case of Physical Settlement) or for such
VWAP Trading Day (in the case of Combination Settlement); and (y) the shares of Common Stock, if any, issuable upon such conversion (in the case of Physical Settlement) or issuable with respect to such VWAP Trading Day (in the case of
Combination Settlement) based on such unadjusted Conversion Rate will be entitled to participate in such dividend or distribution. 

(h)    Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance of shares of its Common
Stock or any securities convertible into or exchangeable for shares of its Common Stock or the right to purchase shares of its Common Stock or such convertible or exchangeable securities (including as consideration for a merger, purchase or similar
transaction). 
 (i)    In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this
Section 13.04, and to the extent permitted by applicable law and subject to the applicable rules of The NASDAQ Global Select Market, the Company from time to time may increase the Conversion Rate by any amount for a period of at least 20
Business Days if the Board of Directors determines that such increase would be in the Company’s best interest. In addition, to the extent permitted by applicable law and subject to the applicable rules of The NASDAQ Global Select Market, the
Company may (but is not required to) increase the Conversion Rate to avoid or diminish any income tax to holders of Common Stock or rights to purchase Common Stock in connection with a dividend or distribution of shares (or rights to acquire shares)
or similar event. Whenever the Conversion Rate is increased pursuant to either of the preceding two sentences, the Company shall mail to the Holder of each Note at its last address appearing on the Note Register a notice of the increase at least 15
days prior to the date the increased Conversion Rate takes effect, and such notice shall state the increased Conversion Rate and the period during which it will be in effect. 

(j)    Notwithstanding anything to the contrary in this Article XIII, the Conversion Rate shall not be adjusted: 

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

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

(iii)    upon the repurchase of any shares of Common Stock pursuant to an open-market share repurchase program or other buy-back transaction that is not a tender offer or exchange offer of the nature described under Section 13.04(e); 

  
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 (iv)    for a third-party tender offer (other than a tender offer by any
Subsidiary of the Company as described under Section 13.04(e)); 
 (v)    upon the issuance of any shares of the
Common Stock pursuant to any option, warrant, right or exercisable, exchangeable or convertible security not described in clause (ii) of this subsection and outstanding as of the date the Notes were first issued; 

(vi)    solely for a change in the par value of the Common Stock; or 

(vii)    for accrued and unpaid interest, if any. 

The Company shall not be required to make an adjustment pursuant to clauses (a), (b), (c), (d) or (e) of this Section 13.04 unless
such adjustment would result in a change of at least 1% of the then-effective Conversion Rate. However, the Company shall carry forward any adjustment that the Company would otherwise have to make and take that adjustment into account in any
subsequent adjustment. Notwithstanding the foregoing, all such carried-forward adjustments shall be made with respect to the Notes (i) in connection with any subsequent adjustment to the Conversion Rate that, together with all previously
carried-forward adjustments that have not been given effect, is at least 1% of the Conversion Rate (when such carried-forward adjustments are taken into account), (ii) on the occurrence of any Fundamental Change or Make-Whole Fundamental Change,
(iii) on any Redemption Notice Date and (iv) on any Conversion Date (in the case of Physical Settlement) or on each VWAP Trading Day of any Observation Period (in the case of Cash Settlement or Combination Settlement). All calculations and
other determinations under this Article XIII shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000) of a share. 

(k)    Whenever the Conversion Rate is adjusted as herein provided, the Company shall promptly file with the Trustee (and
the Conversion Agent if not the Trustee) an Officer’s Certificate setting forth the Conversion Rate after such adjustment and setting forth a brief statement of the facts requiring such adjustment. Unless and until a Responsible Officer of the
Trustee shall have received such Officer’s Certificate, the Trustee shall not be deemed to have knowledge of any adjustment of the Conversion Rate and may assume without inquiry that the last Conversion Rate of which it has knowledge is still
in effect. Promptly after delivery of such certificate, the Company shall prepare a notice of such adjustment of the Conversion Rate setting forth the adjusted Conversion Rate and the date on which each adjustment becomes effective and shall mail
such notice of such adjustment of the Conversion Rate to each Holder at its last address appearing on the Note Register of this Indenture. Failure to deliver such notice shall not affect the legality or validity of any such adjustment. 

(l)    For purposes of this Section 13.04, the number of shares of Common Stock at any time outstanding shall not
include shares held in the treasury of the Company so long as the Company does not pay any dividend or make any distribution on shares of Common Stock held in the treasury of the Company, but shall include shares issuable in respect of scrip
certificates issued in lieu of fractions of shares of Common Stock. 

  
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 (m)    For purposes of this Section 13.04, “Effective
Date” means the first date on which the shares of the Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as applicable. 

Section 13.05    Adjustments of Prices. Whenever any provision of this Indenture requires the Company to
calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values, the Daily Settlement Amounts over a span of multiple days (including an Observation Period and the period for determining the Stock Price for purposes of a
Make-Whole Fundamental Change), the Company shall make appropriate adjustments, if any, to each to account for any adjustment to the Conversion Rate that becomes effective, or any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date of the event occurs, at any time during the period when such Last Reported Sale Prices, Daily VWAPs, Daily Conversion Values or Daily Settlement Amounts are to be calculated. 

Section 13.06    Shares to Be Fully Paid. The Company shall provide, free from preemptive rights, out of its
authorized but unissued shares or shares held in treasury, sufficient shares of Common Stock to provide for conversion of the Notes from time to time as such Notes are presented for conversion (assuming that at the time of computation of such number
of shares, all such Notes would be converted by a single Holder) and that Physical Settlement is applicable. 

Section 13.07    Effect of Recapitalizations, Reclassifications and Changes of the Common Stock. 

(a)    In the case of: 

(i)    any recapitalization, reclassification or change of the Common Stock (other than changes in par value or from or to
no par value or resulting from a subdivision or combination), 
 (ii)    any consolidation, merger or combination
involving the Company, 
 (iii)    any sale, lease or other transfer to a third party of the consolidated assets of the
Company and the Company’s Subsidiaries substantially as an entirety or 
 (iv)    any statutory share exchange,

 in each case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or assets
(including cash or any combination thereof) (such an event, a “Common Stock Change Event” and such stock, other securities, other property or assets, the “Reference Property,” and the amount and kind of Reference
Property that a holder of one share of Common Stock would be entitled to receive on account of such Common Stock Change Event, a “unit of Reference Property”), then, at and after the effective time of the transaction, (w) the
consideration due upon conversion of any Note, and the conditions to any such conversion, will be determined in the same manner as if each reference to any number of shares of Common Stock in the provisions described under this Article XIII (or in
any related definitions) were instead a reference to the same number of Reference Property Units; (x) for purposes of the definition of “Fundamental Change” and “Make-Whole Fundamental Change,” the term “Common
Stock” will be deemed to mean the Common Equity, if any, forming part of 

  
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such Reference Property; (y) for purposes of Article XV, each reference to any number of shares of Common Stock in such Article XV (or in any related definitions) will instead be deemed to
be a reference to the same number of units of Reference Property and (z) the Daily VWAP will be calculated based on the value of a Reference Property Unit. 

If the Common Stock Change Event causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type
of consideration (determined based in part upon any form of stockholder election), then the unit of Reference Property shall be deemed to be (x) the weighted average of the types and amounts of consideration received by the holders of Common
Stock that affirmatively make such an election; or (y) if no holders of Common Stock affirmatively make such an election, the weighted average of the types and amounts of consideration actually received by the holders of Common Stock. If the
holders receive only cash in such Common Stock Change Event, then for all conversions with a Conversion Date that occurs on or after the effective date of such Common Stock Change Event (A) the consideration due upon conversion of each $1,000
principal amount of Notes will be solely cash in an amount equal to the Conversion Rate in effect on such Conversion Date (as may be increased by any Additional Shares pursuant to Section 13.03), multiplied by the price paid per share of
Common Stock in such Common Stock Change Event and (B) the Company shall satisfy the Conversion Obligation by paying cash to converting Holders on the third (or, if the T+2 Effective Date has occurred by such Conversion Date, the second)
Business Day immediately following such Conversion Date. The Company shall notify Holders, the Trustee and the Conversion Agent (if other than the Trustee) of such weighted average as soon as practicable after such determination is made. 

At or before the effective time of the Common Stock Change Event, the Company and the resulting, surviving or transferee Person (if not the
Company) of such Common Stock Change event will execute and deliver to the Trustee a supplemental indenture that gives effect to the provisions described in this Article XIII and that contains such other provisions as the Company reasonably
determines are appropriate to preserve the economic interests of the Holders. If such Reference Property includes, in whole or in part, any stock or other securities, then such supplemental indenture will, to the extent applicable, provide for
subsequent adjustments to the Conversion Rate in a manner consistent with the provisions described in this Article XIII. In addition, if the Reference Property includes, in whole or part, shares of stock or other securities or assets (other than
cash or cash equivalents) of a Person other than such resulting, surviving or transferee Person, then such other Person will also execute such supplemental indenture and such supplemental indenture will contain such additional provisions the Company
reasonably determines are appropriate to preserve the economic interests of the Holders. 
 (b)    In the event the
Company shall execute a supplemental indenture pursuant to subsection (a) of this Section 13.07, the Company shall promptly file with the Trustee an Officer’s Certificate briefly stating the reasons therefor, the kind or amount of
cash, securities or property or asset that will comprise a unit of Reference Property after any such Common Stock Change Event, any adjustment to be made with respect thereto and that all conditions precedent have been complied with, and shall
promptly mail notice thereof to all Holders. The Company shall cause notice of the execution of such supplemental indenture to be mailed to each Holder, at its address appearing on the Note Register provided for in this Indenture, within 20 days
after 

  
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execution thereof. Failure to deliver such notice shall not affect the legality or validity of such supplemental indenture. 

(c)    The above provisions of this Section shall similarly apply to successive Common Stock Change Event. 

Section 13.08    Certain Covenants. (a) The Company covenants that any shares of Common Stock issued upon
conversion of Notes will be validly issued, fully paid and non-assessable by the Company and free from all taxes, liens and charges with respect to the issue thereof. 

(b)    The Company further covenants that if at any time the Common Stock shall be listed on any national securities
exchange or automated quotation system, the Company will use commercially reasonable efforts to list and keep listed, so long as the Common Stock shall be so listed on such exchange or automated quotation system, any Common Stock issuable upon
conversion of the Notes. 
 Section 13.09    Responsibility of Trustee. The Trustee and any other Conversion
Agent shall not at any time be under any duty or responsibility to any Holder to determine the Conversion Rate (or any adjustment thereto) or whether any facts exist that may require any adjustment (including any increase) of the Conversion Rate, or
with respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed, or herein or in any supplemental indenture provided to be employed, in making the same. The Trustee and any other
Conversion Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common Stock, or of any securities, property or cash that may at any time be issued or delivered upon the conversion of any
Note; and the Trustee and any other Conversion Agent make no representations with respect thereto. Neither the Trustee nor any Conversion Agent shall be responsible for any failure of the Company to issue, transfer or deliver any shares of Common
Stock or stock certificates or other securities or property or cash upon the surrender of any Note for the purpose of conversion or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article. Without
limiting the generality of the foregoing, neither the Trustee nor any Conversion Agent shall be under any responsibility to determine the correctness of any provisions contained in any supplemental indenture entered into pursuant to
Section 13.07 relating either to the kind or amount of shares of stock or securities or property (including cash) receivable by Holders upon the conversion of their Notes after any event referred to in such Section 13.07 or to any
adjustment to be made with respect thereto, but, subject to the provisions of Section 7.01, may accept (without any independent investigation) as conclusive evidence of the correctness of any such provisions, and shall be protected in
conclusively relying upon, the Officer’s Certificate (which the Company shall be obligated to file with the Trustee prior to the execution of any such supplemental indenture) with respect thereto. Neither the Trustee nor the Conversion Agent
shall be responsible for determining whether any event contemplated by Section 13.01(b) has occurred that makes the Notes eligible for conversion or no longer eligible therefor until the Company has delivered to the Trustee and the Conversion Agent
the notices referred to in Section 13.01(b) with respect to the commencement or termination of such conversion rights, on which notices the Trustee and the Conversion Agent may conclusively rely, and the Company agrees to deliver such notices to the
Trustee and the Conversion Agent immediately after the 

  
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occurrence of any such event or at such other times as shall be provided for in Section 13.01(b). The Conversion Agent (if other than the Company or an Affiliate of the Company) shall have the
same protection under this Section 13.09 as the Trustee. 
 Section 13.10    Stockholder Rights Plans.
To the extent that the Company has a rights plan in effect upon conversion of the Notes, each share of Common Stock, if any, issued upon such conversion shall be entitled to receive the appropriate number of rights, if any, and the certificates
representing the Common Stock issued upon such conversion shall bear such legends, if any, in each case as may be provided by the terms of any such stockholder rights plan, as the same may be amended from time to time. If at the time of conversion,
however, the rights have separated from the shares of Common Stock in accordance with the provisions of the applicable stockholder rights plan so that the Holders would not be entitled to receive any rights in respect of Common Stock, if any,
issuable upon conversion of the Notes, the Conversion Rate shall be adjusted at the time of separation as if the Company distributed to all or substantially all holders of the Common Stock Distributed Property as provided in Section 13.04(c),
subject to readjustment in the event of the expiration, termination or redemption of such rights. 

Section 13.11    Withholding Taxes for Adjustments in Conversation Rate. If the Company pays withholding taxes
on behalf of a Holder or beneficial owner as a result of an adjustment to the Conversion Rate, the Company may, at its option, set off such payments against payments of cash and shares of Common Stock on the Notes. 

ARTICLE XIV 
 REPURCHASE OF NOTES
AT OPTION OF HOLDERS 
 Section 14.01    Repurchase at Option of Holders Upon a Fundamental
Change. (a) If a Fundamental Change occurs at any time, each Holder shall have the right, at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes, or any portion thereof that is equal to
$1,000 or an integral multiple of $1,000, on the date (the “Fundamental Change Repurchase Date”) specified by the Company that is not less than 20 Business Days or more than 30 Business Days following the date of the Fundamental
Change Company Notice at a repurchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to, but excluding, the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase
Price”), unless the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to the Interest Payment Date to which such Regular Record Date relates, in which case the Company shall instead pay, on or before such
Interest Payment Date, the full amount of accrued and unpaid interest (to such Interest Payment Date) to Holders of record as of such Regular Record Date, and the Fundamental Change Repurchase Price payable on such Fundamental Change Repurchase Date
shall be equal to 100% of the principal amount of Notes to be repurchased pursuant to this Article XIV. 

(b)    Repurchases of Notes under this Section 14.01 shall be made, at the option of the Holder thereof, upon: 

(i)    delivery to the Paying Agent by a Holder of a duly completed notice (the “Fundamental Change Repurchase
Notice”) substantially in the form set forth in Attachment 2 to the Form of Note attached hereto as Exhibit A, if the Notes are Physical Notes, or in 

  
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compliance with the Depositary’s procedures for surrendering interests in Global Notes, if the Notes are Global Notes, in each case on or before the close of business on the Business Day
immediately preceding the Fundamental Change Repurchase Date; and 
 (ii)    delivery of the Notes, if the Notes are
Physical Notes, to the Paying Agent at any time after delivery of the Fundamental Change Repurchase Notice (together with all necessary endorsements for transfer) at the office of the Paying Agent, or book-entry transfer of the Notes, if the Notes
are Global Notes, in compliance with the procedures of the Depositary, in each case such delivery being a condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor. 

The Fundamental Change Repurchase Notice in respect of any Notes to be repurchased shall state: 

(iii)    in the case of Physical Notes, the certificate numbers of the Notes to be delivered for repurchase; 

(iv)    the portion of the principal amount of Notes to be repurchased, which must be $1,000 or an integral multiple
thereof; and 
 (v)    that the Notes are to be repurchased by the Company pursuant to the applicable provisions of the
Notes and this Indenture; 
 provided, however, that if the Notes are Global Notes, the Fundamental Change Repurchase Notice must comply with
appropriate Depositary procedures. 
 Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the
Fundamental Change Repurchase Notice contemplated by this Section 14.01 shall have the right to withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any time prior to the close of business on the Business Day immediately
preceding the Fundamental Change Repurchase Date by delivery of a written notice of withdrawal to the Paying Agent in accordance with Section 14.02. 

The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental Change Repurchase Notice or written notice of
withdrawal thereof. 
 (c)    On or before the 20th calendar day after the occurrence of a Fundamental Change, the
Company shall provide to all Holders of Notes, the Conversion Agent (if other than the Trustee), the Trustee and the Paying Agent (in the case of a Paying Agent other than the Trustee) a written notice (the “Fundamental Change Company
Notice”) of the occurrence of the Fundamental Change and of the repurchase right at the option of the Holders arising as a result thereof. In the case of Physical Notes, such notice shall be by first class mail or, in the case of Global
Notes, such notice shall be delivered in accordance with the applicable procedures of the Depositary. Each Fundamental Change Company Notice shall specify: 

(i)    the events causing the Fundamental Change; 

(ii)    the date of the Fundamental Change; 

  
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 (iii)    the last date on which a Holder may exercise the repurchase right
pursuant to this Article XIV; 
 (iv)    the Fundamental Change Repurchase Price; 

(v)    the Fundamental Change Repurchase Date; 

(vi)    the name and address of the Paying Agent and the Conversion Agent, if applicable; 

(vii)    if applicable, the Conversion Rate and any adjustments to the Conversion Rate; 

(viii)    if applicable, that the Notes with respect to which a Fundamental Change Repurchase Notice has been delivered by
a Holder may be converted only if the Holder withdraws the Fundamental Change Repurchase Notice in accordance with the terms of this Indenture; 

(ix)    the procedures that Holders must follow to require the Company to repurchase their Notes. 

No failure of the Company to give the foregoing notices and no defect therein shall limit the Holders’ repurchase rights or affect the
validity of the proceedings for the repurchase of the Notes pursuant to this Section 14.01. 
 At the Company’s written request
and upon 15 days prior notice, the Paying Agent shall give such notice in the Company’s name and at the Company’s expense; provided, however, that, in all cases, the text of such Fundamental Change Company Notice shall be
prepared by the Company. 
 (d)    Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date
at the option of the Holders upon a Fundamental Change if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the case of an acceleration resulting from a Default
by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes). The Paying Agent will promptly return to the respective Holders thereof any Physical Notes held by it during the acceleration of the Notes (except
in the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in compliance with the procedures
of the Depositary shall be deemed to have been cancelled, and, upon such return or cancellation, as the case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn. 

(e)    For purposes of this Article XIV, the Paying Agent may be any agent, depositary, tender agent, paying agent or
other agent appointed by the Company to accomplish the purposes set forth in this Article XIV. 

  
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 Section 14.02    Withdrawal of Fundamental Change Repurchase
Notice. (a) A Fundamental Change Repurchase Notice may be withdrawn (in whole or in part) by means of a written notice of withdrawal delivered to the Paying Agent in accordance with this Section 14.02 at any time prior to the close of
business on the Business Day immediately preceding the Fundamental Change Repurchase Date, specifying: 
 (i)    the
principal amount of the Notes with respect to which such notice of withdrawal is being submitted, which must be $1,000 or an integral multiple thereof, 

(ii)    if Physical Notes have been issued, the certificate number of the Note in respect of which such notice of
withdrawal is being submitted, and 
 (iii)    the principal amount, if any, of such Note that remains subject to the
original Fundamental Change Repurchase Notice, which portion must be in principal amounts of $1,000 or an integral multiple of $1,000; 
 provided,
however, that if the Notes are Global Notes, the notice must comply with appropriate procedures of the Depositary. 

Section 14.03    Deposit of Fundamental Change Repurchase Price. (a) The Company will deposit with the
Trustee (or other Paying Agent appointed by the Company, or if the Company is acting as its own Paying Agent, set aside, segregate and hold in trust as provided in Section 4.04) on or prior to 11:00 a.m., New York City time, on the Fundamental
Change Repurchase Date an amount of money sufficient to repurchase all of the Notes to be repurchased at the appropriate Fundamental Change Repurchase Price. Subject to receipt of funds and/or Notes by the Trustee (or other Paying Agent appointed by
the Company), payment for Notes surrendered for repurchase (and not withdrawn prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date) will be made on the later of (i) the Fundamental
Change Repurchase Date with respect to such Note (provided the Holder has satisfied the conditions in Section 14.01) and (ii) the time of book-entry transfer or the delivery of such Note to the Trustee (or other Paying Agent
appointed by the Company) by the Holder thereof in the manner required by Section 14.01 by mailing checks for the amount payable to the Holders of such Notes entitled thereto as they shall appear in the Note Register; provided,
however, that payments to the Depositary shall be made by wire transfer of immediately available funds to the account of the Depositary or its nominee. The Paying Agent shall, promptly after such payment and upon written demand by the
Company, return to the Company any funds in excess of the Fundamental Change Repurchase Price. Nothing herein shall preclude any withholding tax required by law. 

(b)    If by 11:00 a.m. New York City time, on the Fundamental Change Repurchase Date, the Trustee (or other Paying Agent
appointed by the Company) holds money sufficient to pay the Fundamental Change Repurchase Price of all the Notes or portions thereof that are to be repurchased on such Fundamental Change Repurchase Date, then (i) such Notes will cease to be
outstanding (subject to the right of a Holder of any Notes on a Regular Record Date to receive the related interest payment), (ii) interest will cease to accrue on such Notes (whether or not book-entry transfer of the Notes has been made or the
Notes have been delivered to the Trustee or Paying Agent) and (iii) all other rights of the Holders of such Notes will terminate (other than 

  
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the right to receive the Fundamental Change Repurchase Price and, if applicable, interest as provided in Section 14.01(a)). 

(c)    Upon surrender of a Note that is to be repurchased in part pursuant to Section 14.01, the Company shall
execute and the Trustee shall authenticate and deliver to the Holder a new Note in an authorized denomination equal in principal amount to the unrepurchased portion of the Note surrendered. 

Section 14.04    Covenant to Comply with Applicable Laws Upon Repurchase of Notes. In connection
with any repurchase offer pursuant to a Fundamental Change Repurchase Notice, the Company will, if required: 

(a)    comply with the provisions of Rule 13e-4, Rule 14e-1 and any other tender offer rules under the Exchange Act that may then be applicable; 

(b)    file a Schedule TO or any other required schedule under the Exchange Act; and 

(c)    otherwise comply with all federal and state securities laws in connection with any offer by the Company to
repurchase the Notes; 
 in each case, so as to permit the rights and obligations under this Article XIV to be exercised in the time and in the manner
specified in this Article XIV. 
 ARTICLE XV 

OPTIONAL REDEMPTION 

Section 15.01    Optional Redemption. 

(a)    The Company may not redeem the Notes at its option at any time prior to June 1, 2021. Subject to the terms of
this Section 15.01, the Company has the right, at its election, to redeem all, or any portion in an authorized denomination, of the Notes, at any time and from time to time, on a Redemption Date on or after June 1, 2021, for a cash
purchase price equal to the Redemption Price, but only if the Last Reported Sale Price per share of Common Stock exceeds 130% of the Conversion Price on each of at least 20 Trading Days (whether or not consecutive) during the 30 consecutive Trading
Days ending on, and including, the Trading Day immediately before the Redemption Notice Date. 
 (b)    Notwithstanding
the foregoing, no Notes may be redeemed on any Redemption Date if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to such Redemption Date (except in the case of an acceleration
resulting from a Default by the Company in the payment of the Redemption Price with respect to such Notes). The Paying Agent will promptly return to the respective Holders thereof any Physical Notes held by it during the acceleration of the Notes
(except in the case of an acceleration resulting from a Default by the Company in the payment of the Redemption Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in compliance with the procedures of the
Depositary shall be deemed to have been cancelled. 

  
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 (c)    The Redemption Date will be a Business Day of the Company’s
choosing that is no more than 65, nor less than 45, Scheduled Trading Days after the Redemption Notice Date. 

(d)    The Redemption Price for any Note called for redemption will be an amount in cash equal to the principal amount of
such Note plus accrued and unpaid interest on such Note to, but excluding, the Redemption Date for such redemption; provided, however, if the Redemption Date is after a Regular Record Date and on or before the next Interest Payment
Date, then (i) the Holder of such Note at the close of business on such Regular Record Date will be entitled, notwithstanding such redemption, to receive, on or before such Interest Payment Date, the unpaid interest that would have accrued on
such Note to, but excluding, such Interest Payment Date (assuming, solely for these purposes, that such Note remained outstanding through such Interest Payment Date, if such Redemption Date is before such Interest Payment Date); and (ii) the
Redemption Price will not include accrued and unpaid interest on such Note to, but excluding, such Redemption Date. For the avoidance of doubt, if an Interest Payment Date is not a Business Day within the meaning of Section 16.06 and such
Redemption Date occurs on the Business Day immediately after such Interest Payment Date, then (x) accrued and unpaid interest on Notes to, but excluding, such Interest Payment Date will be paid, in accordance with Section 16.06, on the
next Business Day to Holders at of the close of business on the immediately preceding Regular Record Date; and (y) the Redemption Price will include interest on Notes to be redeemed from, and including, such Interest Payment Date. 

(e)    To call any Notes for redemption, the Company must send to each Holder (and to any beneficial owner of a Global
Note, if required by applicable law), the Trustee and the Paying Agent a written notice of such redemption (a “Redemption Notice”). 

Such Redemption Notice must state: 

(i)    that the Notes have been called for redemption, briefly describing the Company’s redemption right under this
Indenture; 
 (ii)    the Redemption Date for such redemption; 

(iii)    the Redemption Price per $1,000 principal amount of Notes for such redemption (and, if the Redemption Date is
after a Regular Record Date and on or before the next Interest Payment Date, the amount, manner and timing of the interest payment payable pursuant to the proviso to Section 15.01(d)); 

(iv)    the name and address of the Paying Agent and the Conversion Agent; 

(v)    that Notes called for redemption may be converted at any time before the close of business on the Business Day
immediately before the Redemption Date (or, if the Company fails to pay the Redemption Price due on such Redemption Date in full, at any time until such time as the Company pays such Redemption Price in full); 

(vi)    the Conversion Rate in effect on the Redemption Notice Date for such redemption; 

  
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 (vii)    the Settlement Method that will apply to all conversions of Notes
with a Conversion Date that occurs on or after such Redemption Notice Date and before such Redemption Date; 

(viii)    that Notes called for Redemption must be delivered to the Paying Agent (in the case of Physical Notes) or the
appropriate procedures of the Depositary must be complied with (in the case of Global Notes) for the Holder thereof to be entitled to receive the Redemption Price; and 

(ix)    the CUSIP and ISIN numbers, if any, of the Notes. 

On or before the Redemption Notice Date, the Company will send a copy of such Redemption Notice to the Trustee and the Paying Agent. 

(f)    If less than all Notes then outstanding are called for redemption, then: 

(i)    the Notes to be redeemed will be selected by the Paying Agent as follows: (1) in the case of Global Notes, in
accordance with the appropriate procedures of the Depositary; and (2) in the case of Physical Notes, pro rata, by lot or by such other method the Company considers fair and appropriate; and 

(ii)    if only a portion of a Note is subject to redemption and such Note is converted in part, then the converted
portion of such Note will be deemed to be from the portion of such Note that was subject to redemption. 

(g)    Without limiting the Company’s obligation to deposit the Redemption Price, the Company will cause the
Redemption Price for a Note (or portion thereof) subject to redemption to be paid to the Holder thereof on or before the later of (i) the applicable Redemption Date; and (ii) the date (x) such Note is delivered to the Paying Agent (in
the case of a Physical Note) or (y) the appropriate procedures of the Depositary relating to the Redemption, and the delivery to the Paying Agent, of such Holder’s beneficial interest in such Note to be redeemed are complied with (in the
case of a Global Note). For the avoidance of doubt, interest payable pursuant to the proviso to Section 15.01(d) on any Note (or portion thereof) subject to redemption must be paid pursuant to such proviso regardless of whether such Note is
delivered or such Depositary procedures are complied with pursuant to the first sentence of this Section 15.01(g). 
 ARTICLE XVI 

MISCELLANEOUS PROVISIONS 

Section 16.01    Provisions Binding on Company’s Successors. All the covenants,
stipulations, promises and agreements of the Company contained in this Indenture shall bind its successors and assigns whether so expressed or not. 

Section 16.02    Official Acts by Successor Corporation. Any act or proceeding by any provision of this
Indenture authorized or required to be done or performed by any board, committee or Officer of the Company shall and may be done and performed with like force and effect by the like board, committee or officer of any corporation or other entity that
shall at the time be the lawful sole successor of the Company. 

  
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 Section 16.03    Addresses for Notices, Etc. Any notice or demand
that by any provision of this Indenture is required or permitted to be given or served by the Trustee or by the Holders on the Company shall be deemed to have been sufficiently given or made, for all purposes if given or served by being deposited
postage prepaid by registered or certified mail in a post office letter box addressed (until another address is filed by the Company with the Trustee) to PRA Group, Inc., 120 Corporate Boulevard, Suite 100, Norfolk, Virginia, 23502, Attention:
General Counsel or sent electronically in PDF format. Any notice, direction, request or demand hereunder to or upon the Trustee shall be deemed to have been sufficiently given or made, for all purposes, if given or served by being deposited postage
prepaid by registered or certified mail in a post office letter box addressed to the Corporate Trust Office or sent electronically in PDF format. 

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

Any notice or communication mailed to a Holder shall be mailed to it by first class mail, postage prepaid, at its address as it appears on the
Note Register and shall be sufficiently given to it if so mailed within the time prescribed; provided that notices given to Holders holding Notes in book-entry form may be given through the facilities of the Depository, and notice given in
that manner will be deemed to satisfy any requirement in this Indenture to provide “written” or “mailed” notice to the applicable Holder(s). 

Failure to mail a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other Holders. If a
notice or communication is mailed in the manner provided above, it is duly given, whether or not the addressee receives it. 
 In case by
reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice to Holders by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient
notification for every purpose hereunder. 
 Section 16.04    Governing Law; Jury Trial Waiver. THIS
INDENTURE, THE NOTES, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING UNDER OR RELATED TO THIS INDENTURE OR THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. EACH OF THE COMPANY, THE HOLDERS AND THE
TRUSTEE HEREBY IRREVOCABLY WAIVES, TO THE FULLEST EXTENT PERMITTED BY APPLICABLE LAW, ANY AND ALL RIGHT TO TRIAL BY JURY IN ANY LEGAL PROCEEDING ARISING OUT OF OR RELATING TO THIS INDENTURE, THE NOTES OR THE TRANSACTION CONTEMPLATED HEREBY. 

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time of the Notes and the Trustee, that any legal
action, suit or proceeding against it with respect to obligations, liabilities or any other matter arising out of or in connection with this Indenture or the Notes may be brought in the courts of the State of New York or the courts of the United
States located in the Borough of Manhattan, New York City, New York and, until amounts due and to become due in respect of the Notes have been paid, hereby irrevocably 

  
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consents and submits to the non-exclusive jurisdiction of each such court in personam, generally and unconditionally with respect to any action, suit or
proceeding for itself in respect of its properties, assets and revenues. 
 The Company irrevocably and unconditionally waives, to the
fullest extent permitted by law, any objection which it may now or hereafter have to the laying of venue of any of the aforesaid actions, suits or proceedings arising out of or in connection with this Indenture or the Notes brought in the courts of
the State of New York or the courts of the United States located in the Borough of Manhattan, New York City, New York and hereby further irrevocably and unconditionally waives and agrees not to plead or claim in any such court that any such action,
suit or proceeding brought in any such court has been brought in an inconvenient forum. 

Section 16.05    Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to
Trustee. Upon any application or demand by the Company to the Trustee to take any action under any of the provisions of this Indenture other than an Opinion of Counsel with respect to an action to be taken on the date hereof in connection with
the initial issuance of the Notes, the Company shall furnish to the Trustee an Officer’s Certificate and an Opinion of Counsel stating that such action is permitted by the terms of this Indenture and all conditions precedent to such action have
been complied with. Such Opinion of Counsel shall be in form and substance reasonably satisfactory to the Trustee. 
 Each Officer’s
Certificate and Opinion of Counsel provided for, by or on behalf of the Company in this Indenture and delivered to the Trustee with respect to compliance with this Indenture (other than the Officer’s Certificates provided for in
Section 4.08) shall include (a) a statement that the Person making such certificate is familiar with the requested action and this Indenture; (b) a brief statement as to the nature and scope of the examination or investigation upon
which the statement contained in such certificate is based; (c) a statement that, in the judgment of such Person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed judgment as to
whether or not such action is permitted by this Indenture; and (d) a statement as to whether or not, in the judgment of such Person, such action is permitted by this Indenture. 

Section 16.06    Legal Holidays. In any case where any Interest Payment Date, Redemption Date, Fundamental
Change Repurchase Date, Conversion Date or Maturity Date is not a Business Day (which, for purposes of this Section 16.06, shall include a day on which the applicable place of payment is authorized or required by law or executive order to close
or be closed), then any action to be taken on such date need not be taken on such date, but may be taken on the next succeeding Business Day with the same force and effect as if taken on such date, and no interest shall accrue in respect of the
delay. 
 Section 16.07    No Security Interest Created. Nothing in this Indenture or in the Notes,
expressed or implied, shall be construed to constitute a security interest under the Uniform Commercial Code or similar legislation, as now or hereafter enacted and in effect, in any jurisdiction. 

Section 16.08    Benefits of Indenture. Nothing in this Indenture or in the Notes, expressed or implied, shall
give to any Person, other than the parties hereto, any Paying Agent, any 

  
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Conversion Agent, any authenticating agent, any Note Registrar and their successors hereunder or the Holders, any benefit or any legal or equitable right, remedy or claim under this Indenture.

 Section 16.09    Table of Contents, Headings, Etc. The table of contents and the titles and headings of
the articles and sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof. 

Section 16.10    Authenticating Agent. The Trustee may appoint an authenticating agent that shall be
authorized to act on its behalf and subject to its direction in the authentication and delivery of Notes in connection with the original issuance thereof and transfers and exchanges of Notes hereunder, including under Section 2.04,
Section 2.05, Section 2.06, Section 2.07, Section 10.04 and Section 14.03 as fully to all intents and purposes as though the authenticating agent had been expressly authorized by this Indenture and those Sections to
authenticate and deliver Notes. For all purposes of this Indenture, the authentication and delivery of Notes by the authenticating agent shall be deemed to be authentication and delivery of such Notes “by the Trustee” and a certificate of
authentication executed on behalf of the Trustee by an authenticating agent shall be deemed to satisfy any requirement hereunder or in the Notes for the Trustee’s certificate of authentication. Such authenticating agent shall at all times be a
Person eligible to serve as trustee hereunder pursuant to Section 7.07. 
 Any corporation or other entity into which any
authenticating agent may be merged or converted or with which it may be consolidated, or any corporation or other entity resulting from any merger, consolidation or conversion to which any authenticating agent shall be a party, or any corporation or
other entity succeeding to all or substantially all the corporate trust business of any authenticating agent, shall be the successor of the authenticating agent hereunder, if such successor corporation or other entity is otherwise eligible under
this Section, without the execution or filing of any paper or any further act on the part of the parties hereto or the authenticating agent or such successor corporation or other entity. 

Any authenticating agent may at any time resign by giving written notice of resignation to the Trustee and to the Company. The Trustee may at
any time terminate the agency of any authenticating agent by giving written notice of termination to such authenticating agent and to the Company. Upon receiving such a notice of resignation or upon such a termination, or in case at any time any
authenticating agent shall cease to be eligible under this Section, the Trustee may appoint a successor authenticating agent (which may be the Trustee), shall give written notice of such appointment to the Company and shall mail notice of such
appointment to all Holders as the names and addresses of such Holders appear on the Note Register. 
 The Company agrees to pay to the
authenticating agent from time to time such compensation for its services as agreed in writing although the Company may terminate the authenticating agent (if other than the Trustee), if it determines such authenticating agent’s fees to be
unreasonable. 
 The provisions of Section 7.02, Section 7.03, Section 7.04, Section 8.03 and this Section 16.10
shall be applicable to any authenticating agent. 

  
 83 








 If an authenticating agent is appointed pursuant to this Section, the Notes may have endorsed
thereon, in addition to the Trustee’s certificate of authentication, an alternative certificate of authentication in the following form: 
  

	
	 as Authenticating Agent, certifies that this is one of

the Notes described in the within-named Indenture.

 
 By:

Authorized Signatory


 Section 16.11    Execution in Counterparts. This Indenture may be executed in
any number of counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall
constitute effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their
original signatures for all purposes. 
 Section 16.12    Severability. In the event any provision of this
Indenture or in the Notes shall be invalid, illegal or unenforceable, then (to the extent permitted by law) the validity, legality or enforceability of the remaining provisions shall not in any way be affected or impaired. 

Section 16.13    Force Majeure. In no event shall the Trustee be responsible or liable for any failure or
delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or terrorism, civil or military
disturbances, nuclear or natural catastrophes or acts of God, and interruptions, loss or malfunctions of utilities, communications or computer (software and hardware) services; it being understood that the Trustee shall use reasonable efforts that
are consistent with accepted practices in the banking industry to resume performance as soon as practicable under the circumstances. 

Section 16.14    Calculations. The Company shall be responsible for making all calculations called for under
the Notes. These calculations include, but are not limited to, determinations of the Last Reported Sale Prices of the Common Stock, the Daily VWAPs, the Daily Settlement Amounts, the Daily Conversion Values, accrued interest payable on the Notes and
the Conversion Rate of the Notes. The Company shall make all these calculations in good faith and, absent manifest error, the Company’s calculations shall be final and binding on Holders. The Company shall provide a schedule of its calculations
to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely conclusively upon the accuracy of the Company’s calculations without independent verification. The Trustee will forward the
Company’s calculations to any Holder upon the written request of that Holder at the sole cost and expense of the Company. 

Section 16.15    USA PATRIOT Act. The parties hereto acknowledge that in accordance with Section 326 of
the USA PATRIOT Act, the Trustee, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify 

  
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and record information that identifies each person or legal entity that establishes a relationship or opens an account with the Trustee. The parties to this Indenture agree that they will provide
the Trustee with such information as it may request in order for the Trustee to satisfy the requirements of the USA PATRIOT Act. 

Section 16.16    No Adverse Interpretation of Other Agreements. Other than the Notes and any supplemental
indenture hereto, this Indenture may not be used to interpret any other indenture, loan or debt agreement of the Company or any of its Subsidiaries or of any other Person. Any such indenture, loan or debt agreement may not be used to interpret this
Indenture. 
 [Signature page follows.] 

  
 85 








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

			
	 PRA GROUP, INC.

		
	 By:
	 	 /s/ Peter M. Graham

	 Name:
	 	 Peter M. Graham

	 Title:
	 	 Executive Vice President and Chief

Financial Officer

	
	 REGIONS BANK, as Trustee

		
	 By:
	 	 /s/ Kristine Prall

	 Name:
	 	 Kristine Prall

	 Title:
	 	 Vice President




  
 86 








 EXHIBIT A 

[FORM OF FACE OF NOTE] 
 [INCLUDE
FOLLOWING LEGEND IF A GLOBAL NOTE] 
 [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY,
A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE, OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS
WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN.] 
 [INCLUDE FOLLOWING LEGEND IF A RESTRICTED
SECURITY] 
 [THE SALE OF THIS NOTE HAS NOT BEEN REGISTERED UNDER THE U.S. SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES
ACT”), AND, ACCORDINGLY, PRIOR TO THE RESALE RESTRICTION TERMINATION DATE (AS DEFINED BELOW), THIS NOTE AND ANY SHARES OF COMMON STOCK ISSUABLE UPON CONVERSION OF THIS NOTE (AND ANY BENEFICIAL INTEREST HEREIN OR THEREIN) MAY NOT BE OFFERED,
RESOLD OR OTHERWISE TRANSFERRED, EXCEPT: 
  

	 	(E)	TO THE COMPANY OR ANY OF THEIR RESPECTIVE SUBSIDIARIES; 

  

	 	(F)	PURSUANT TO A REGISTRATION STATEMENT THAT HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT; 

  

	 	(G)	TO A PERSON THAT YOU REASONABLY BELIEVE TO BE A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT; OR 


 

	 	(H)	UNDER ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT (INCLUDING, IF AVAILABLE, THE EXEMPTION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT). 


THE “RESALE RESTRICTION TERMINATION DATE” MEANS THE DATE: (A) THAT IS AT LEAST ONE YEAR AFTER THE LAST ORIGINAL ISSUANCE DATE
OF THE NOTES; AND (B) ON WHICH THE COMPANY HAS INSTRUCTED THE TRUSTEE THAT THIS LEGEND WILL NO LONGER APPLY IN ACCORDANCE WITH THE PROCEDURES DESCRIBED IN THE INDENTURE. 

  
 A-1 








 PRIOR TO ANY TRANSFER PURSUANT TO THE FOREGOING CLAUSES (C) AND (D), THE COMPANY AND THE
TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH CERTIFICATIONS, LEGAL OPINIONS (WITH RESPECT TO CLAUSE (D) ONLY) OR OTHER INFORMATION AS THEY MAY REASONABLY REQUIRE AND RELY UPON TO CONFIRM THAT SUCH TRANSFER IS BEING MADE PURSUANT TO
AN EXEMPTION FROM, OR IN A TRANSACTION NOT SUBJECT TO, THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 DURING THE PERIOD ENDING ONE
YEAR AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE NOTES, NO “AFFILIATE” (AS DEFINED IN RULE 144) WILL BE PERMITTED TO RESELL ANY OF THE NOTES THAT CONSTITUTE “RESTRICTED SECURITIES” UNDER RULE 144 THAT HAVE BEEN REACQUIRED BY
ANY OF THEM.]1 
  

	1 	This legend (other than the first paragraph hereof) shall be deemed removed from the face of this Security without further action of the Company, the Trustee, or the holders of this Security at such time as the Company
instructs the Trustee to remove such legend pursuant to Section 2.05(c) of the Indenture. 


  
 A-2 








 PRA Group, Inc. 

3.50% Convertible Senior Note due 2023 

No.     Initially $         

CUSIP No. [            ]2 

PRA GROUP, INC., a corporation duly organized and validly existing under the laws of the State of Delaware (the “Company,”
which term includes any successor corporation or other entity under the Indenture referred to on the reverse hereof), for value received hereby promises to pay to [CEDE & CO.]3
[    ]4, or registered assigns, the principal sum [as set forth in the “Schedule of Exchanges of Notes” attached
hereto]5[of $(DOLLARS)]6, which amount, taken together with the principal amounts of all other outstanding Notes, shall not, unless permitted
by the Indenture, exceed $345,000,000 in aggregate at any time, in accordance with the rules and procedures of the Depositary, on the Maturity Date, and interest thereon as set forth below. 

This Note shall accrue interest at the rate of 3.50% per year from May 26, 2017, or from, and including, the most recent date for which
interest has been paid or provided for to, but excluding, the next scheduled Interest Payment Date until the Maturity Date. Accrued interest on this Note shall be computed on the basis of a 360-day year
composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day month. Interest is payable semi-annually in arrears on each
June 1 and December 1, commencing on [        ], to Holders of record at the close of business on the preceding May 15 and November 15 (whether or not such day is a Business Day),
respectively. Additional Interest will be payable as set forth in Section 4.06(d), Section 4.06(e) and Section 6.03 of the within-mentioned Indenture, and any reference to interest on, or in respect of, any Note therein shall be deemed to
include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to any of such Section 4.06(d), Section 4.06(e) or Section 6.03 and any express mention of the payment of Additional Interest in any
provision therein shall not be construed as excluding Additional Interest in those provisions thereof where such express mention is not made. 

Any Defaulted Amounts shall accrue interest per annum at the rate borne by the Notes, subject to the enforceability thereof under applicable
law, from, and including, the relevant payment date to, but excluding, the date on which such Defaulted Amounts shall have been paid by the Company, at its election, in accordance with Section 2.03(c) of the Indenture. 

 

	2 	At such time as the Company notifies the Trustee to remove the legend (other than the first paragraph thereof) pursuant to, and subject to the other provisions of, Section 2.05(c) of the Indenture, the CUSIP number for
this Security shall be deemed to be CUSIP No. [            ]. 


	3 	Include for a Global Note. 


	4 	Include for a Physical Note. 


	5 	Include for a Global Note. 


	6 	Include for a Physical Note. 


  
 A-3 








 The Company shall pay the principal of and interest on this Note, if and so long as such Note is
a Global Note, in immediately available funds in lawful money of the United States at the time to the Depositary or its nominee, as the case may be, as the registered Holder of such Note. As provided in and subject to the provisions of the
Indenture, the Company shall pay the principal of any Notes (other than Notes that are Global Notes) at the office or agency designated by the Company for that purpose. The Company has initially designated the Trustee as its Paying Agent and Note
Registrar in respect of the Notes and its Corporate Trust Office as a place where Notes may be presented for payment or for registration of transfer and exchange. 

Reference is made to the further provisions of this Note set forth on the reverse hereof, including, without limitation, provisions giving the
Holder of this Note the right to convert this Note into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, on the terms and subject to the limitations set forth in the Indenture. Such further provisions
shall for all purposes have the same effect as though fully set forth at this place. 
 This Indenture, the Notes, and any claim,
controversy or dispute arising under or related to this Indenture or the Notes, shall be governed by, and construed in accordance with, the laws of the State of New York (without regard to the conflicts of laws provisions thereof other than Sections
5-1401 and 5-1402 of the General Obligations Law). 
 In
the case of any conflict between this Note and the Indenture, the provisions of the Indenture shall control and govern. 
 This Note shall
not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been manually signed by the Trustee or a duly authorized authenticating agent under the Indenture. 

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

  
 A-4 








 
			
	PRA GROUP, INC.
		
	By:	 	  

	Name:	 	
	Title:	 	



  
 A-5 









			
	TRUSTEE’S CERTIFICATE OF AUTHENTICATION
	
	REGIONS BANK,
	
	 as Trustee, certifies that this is one of the

Notes described in the within-named
 Indenture.

		
	By:	 	  

		 	 Authorized Signatory


 Dated: 

  
 A-6 








 [FORM OF REVERSE OF NOTE] 

PRA Group, Inc. 
 3.50% Convertible
Senior Note due 2023 
 This Note is one of a duly authorized issue of Notes of the Company, designated as its 3.50% Convertible Senior
Notes due 2023 (the “Notes”), initially limited to the aggregate principal amount of $345,000,000, all issued or to be issued under and pursuant to an Indenture dated as of May 26, 2017 (the “Indenture”),
between the Company and Regions Bank (the “Trustee”), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights, obligations, duties and immunities
thereunder of the Trustee, the Company and the Holders of the Notes. Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in the Indenture. Capitalized terms used in this Note and not
defined in this Note shall have the respective meanings set forth in the Indenture. 
 In the event of certain Events of Default (other than
an Event of Default specified in Section 6.01(i) or Section 6.01(j) of the Indenture with respect to the Company or any of its Significant Subsidiaries) shall have occurred and be continuing, the principal of, and interest on, all Notes may be
declared, by either the Trustee or Holders of at least 25% in aggregate principal amount of the Notes then outstanding, and upon said declaration shall become, due and payable, in the manner, with the effect and subject to the conditions and certain
exceptions set forth in the Indenture. 
 Subject to the terms and conditions of the Indenture, the Company will make all payments and
deliveries in respect of the Fundamental Change Repurchase Price on the applicable Fundamental Change Repurchase Date, the Redemption Price on the applicable Redemption Date and the principal amount on the Maturity Date, as the case may be, to the
Holder who surrenders a Note to a Paying Agent to collect such payments in respect of the Note. The Company will pay cash amounts in money of the United States that at the time of payment is legal tender for payment of public and private debts. 

The Indenture contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the Holders of the
Notes, and in certain other circumstances, with the consent of the Holders of not less than a majority in aggregate principal amount of the Notes at the time outstanding, evidenced as in the Indenture provided, to execute supplemental indentures
modifying the terms of the Indenture and the Notes as described therein. It is also provided in the Indenture that, subject to certain exceptions, the Holders of a majority in aggregate principal amount of the Notes at the time outstanding may on
behalf of the Holders of all of the Notes waive any past Default or Event of Default under the Indenture and its consequences. 
 No
reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay or deliver, as the case may be, the principal (including the
Redemption Price or Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest on, and the consideration due upon conversion of, this Note at the place, at the respective times, at the rate and in the lawful money herein
prescribed. 

  
 A-7 








 The Notes are issuable in registered form without coupons in denominations of $1,000 principal
amount and integral multiples thereof. At the office or agency of the Company referred to on the face hereof, and in the manner and subject to the limitations provided in the Indenture, Notes may be exchanged for a like aggregate principal amount of
Notes of other authorized denominations, without payment of any service charge but, if required by the Company or Trustee, with payment of a sum sufficient to cover any transfer or similar tax that may be imposed in connection therewith as a result
of the name of the Holder of the new Notes issued upon such exchange of Notes being different from the name of the Holder of the old Notes surrendered for such exchange. 

The Company will have the right to redeem the Notes for cash in the manner, and subject to the terms, set forth in Article XV of the
Indenture. 
 Upon the occurrence of a Fundamental Change, the Holder has the right, at such Holder’s option, to require the Company to
repurchase for cash all of such Holder’s Notes or any portion thereof (in principal amounts of $1,000 or integral multiples thereof) on the Fundamental Change Repurchase Date at a price equal to the Fundamental Change Repurchase Price. 

Subject to the provisions of the Indenture, the Holder hereof has the right, at its option, during certain periods and upon the occurrence of
certain conditions specified in the Indenture, prior to the close of business on the second Scheduled Trading Day immediately preceding the Maturity Date, to convert any Notes or portion thereof that is $1,000 or an integral multiple thereof, into
cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, at the Conversion Rate specified in the Indenture, as adjusted from time to time as provided in the Indenture. 

Terms used in this Note and defined in the Indenture are used herein as therein defined. 

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

TEN COM = as tenants in common 
 UNIF GIFT MIN ACT = Uniform
Gifts to Minors Act 
 CUST = Custodian 
 TEN ENT = as tenants
by the entireties 
 JT TEN = joint tenants with right of survivorship and not as tenants in common 

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

SCHEDULE A 

  
 A-8 








 SCHEDULE OF EXCHANGES OF NOTES 

PRA Group, Inc. 
 3.50% Convertible
Senior Notes due 2023 
 The initial principal amount of this Global Note is [    ] DOLLARS
($[    ]). The following increases or decreases in this Global Note have been made: 
  

									
	 Date of exchange
	  	 Amount of

decrease in
 principal amount

of this Global
 Note
	  	 Amount of

increase in
 principal amount

of this Global
 Note
	  	 Principal amount

of this Global
 Note following

such decrease or
 increase
	  	 Signature of

authorized
 signatory of

Trustee or

Custodian



  
 A-9 








 ATTACHMENT 1 

[FORM OF NOTICE OF CONVERSION] 

To:    PRA Group, Inc. 

To:    Regions Bank, 1180 West Peachtree Street, Suite 1200, Atlanta, GA 30309 

The undersigned registered owner of this Note hereby exercises the option to convert this Note, or the portion hereof (that is $1,000
principal amount or an integral multiple thereof) below designated, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, in accordance with the terms of the Indenture referred to in this Note, and
directs that any cash payable and any shares of Common Stock issuable and deliverable upon such conversion, together with any cash for any fractional share, and any Notes representing any unconverted principal amount hereof, be issued and delivered
to the registered Holder hereof unless a different name has been indicated below. If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person other than the undersigned, the undersigned will pay
all documentary, stamp or similar issue or transfer taxes, if any in accordance with Section 13.02(d) and Section 13.02(e) of the Indenture. Any amount required to be paid to the undersigned on account of interest accompanies this Note. 

 

			
	 Dated:

Signature(s)
  

Signature Guarantee
  

Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in
an approved signature guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15 if shares of Common Stock are to be issued, or Notes are to be delivered, other than to and in the
name of the registered holder.
  
 Fill in for registration of shares if to be issued,
and Notes if to be delivered, other than to and in the name of the registered holder:
  

(Name)
  

(Street Address)
	  	


  
 A-10 









					
	 (City, State and Zip Code)

Please print name and address
	  		  	
		  		  	  
 Principal amount to be converted (if less than all):

$            ,000
  

NOTICE: The above signature(s) of the
Holder(s) hereof must correspond with the name
as written upon the face of the Note in every
particular without
alteration or enlargement or
any change whatever.
  
 Social Security or Other
Taxpayer
 Identification Number



  
 A-11 








 ATTACHMENT 2 

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE] 

To:    PRA Group, Inc. 

To:    Regions Bank, 1180 West Peachtree Street, Suite 1200, Atlanta, GA 30309 

The undersigned registered owner of this Note hereby acknowledges receipt of a notice from PRA Group, Inc. (the “Company”) as
to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Repurchase Date and requests and instructs the Company to pay to the registered holder hereof in accordance with Section 14.01 of the
Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion thereof (that is $1,000 principal amount or an integral multiple thereof) below designated, and (2) if such Fundamental Change Repurchase Date
does not fall during the period after a Regular Record Date and on or prior to the Business Day immediately following the corresponding Interest Payment Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental Change
Repurchase Date. 
 In the case of Physical Notes, the certificate numbers of the Notes to be repurchased are as set forth below: 

Dated: 
  

					
		 		 	 Signature(s)
  

Social Security or Other Taxpayer
 Identification Number

 
 Principal amount to be repurchased by the
Company (if less than all):
$            ,000

		 		 	  
 NOTICE: The above signature(s) of the
Holder(s) hereof must
correspond with the name
as written upon the face of the Note in every
particular without alteration or enlargement or
any change whatever.



  
 A-12 








 ATTACHMENT 3 

[FORM OF ASSIGNMENT AND TRANSFER] 
 Regions Bank,

 as Trustee and Registrar 
 1180 West Peachtree Street, Suite
1200, Atlanta, GA 30309 
 For value received              hereby sell(s),
assign(s) and transfer(s) unto              (Please insert social security or Taxpayer Identification Number of assignee) the within Note, and hereby irrevocably constitutes and appoints
             attorney to transfer the said Note on the books of the Company, with full power of substitution in the premises. 

In connection with any transfer of the within Note occurring prior to the Resale Restriction Termination Date, as defined in the Indenture
governing such Note, the undersigned confirms that such Note is being transferred: 
  

	 	•	 	to PRA Group, Inc. or a subsidiary thereof; or 

  

	 	•	 	Pursuant to a registration statement that has become or been declared effective under the Securities Act of 1933, as amended; or 

  

	 	•	 	Pursuant to and in compliance with Rule 144A under the Securities Act of 1933, as amended; or 

  

	 	•	 	Under any other available exemption from the registration requirements of the Securities Act of 1933, as amended (including, if available, the exemption provided by Rule 144 under the Securities Act of 1933, as amended,
or any other available exemption from the registration requirements of the Securities Act of 1933, as amended. 

  

			
	 Dated:
  

Signature(s)
  

Signature Guarantee
  

Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in
an approved signature guarantee medallion program pursuant to Securities and Exchange Commission Rule 17Ad-15 if Notes are to be delivered, other than to and in the name of the registered holder.
	  	
	  
 NOTICE: The signature on the assignment
	  	


  
 A-13 









			
	must correspond with the name as written
upon the face of the Note in every particular
without alteration or enlargement or any
change whatever.	  	


  
 A-14