Document:

EX-4.2

 Exhibit 4.2 
  

 
  

MFA Financial, Inc. 

and 
 Wilmington Trust,
National Association 
 as Trustee 

First Supplemental Indenture 

Dated as of June 3, 2019 

to the Indenture 
 Dated
as of June 3, 2019 
 6.25% Convertible Senior Notes due 2024 

 
  

 

 TABLE OF CONTENTS 

 

							
	 	 	 	  	Page	 
	 Article 1 DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION
	  	 	2	 
			
	 Section 1.01
	 	Scope of Supplemental Indenture	  	 	2	 
	 Section 1.02
	 	Definitions	  	 	2	 
		
	 Article 2 THE SECURITIES
	  	 	9	 
			
	 Section 2.01
	 	Title and Terms; Payments	  	 	9	 
	 Section 2.02
	 	Forms	  	 	10	 
	 Section 2.03
	 	Transfer and Exchange	  	 	11	 
	 Section 2.04
	 	Payments on the Securities	  	 	14	 
		
	 Article 3 REDEMPTIONS AND PURCHASES
	  	 	15	 
			
	 Section 3.01
	 	Amendments to the Base Indenture	  	 	15	 
	 Section 3.02
	 	Purchase at Option of Holders upon a Fundamental Change	  	 	16	 
	 Section 3.03
	 	Effect of Fundamental Change Purchase Notice	  	 	19	 
	 Section 3.04
	 	Withdrawal of Fundamental Change Purchase Notice	  	 	19	 
	 Section 3.05
	 	Deposit of Fundamental Change Purchase Price	  	 	20	 
	 Section 3.06
	 	Securities Purchased in Whole or in Part	  	 	20	 
	 Section 3.07
	 	Covenant To Comply with Applicable Laws upon Purchase of Securities	  	 	20	 
	 Section 3.08
	 	Repayment to the Company	  	 	20	 
		
	 Article 4 CONVERSION
	  	 	20	 
			
	 Section 4.01
	 	Right To Convert	  	 	20	 
	 Section 4.02
	 	Conversion Procedures	  	 	21	 
	 Section 4.03
	 	Settlement Upon Conversion	  	 	23	 
	 Section 4.04
	 	Adjustment of Conversion Rate	  	 	24	 
	 Section 4.05
	 	Adjustments of Prices and Voluntary Adjustments	  	 	34	 
	 Section 4.06
	 	Increase in Conversion Rate Upon Conversion in Connection with a Make-Whole Fundamental Change	  	 	34	 
	 Section 4.07
	 	Effect of Recapitalization, Reclassification, Consolidation, Merger or Sale	  	 	36	 
	 Section 4.08
	 	Stock Issued Upon Conversion	  	 	37	 
	 Section 4.09
	 	Responsibility of Trustee	  	 	38	 
	 Section 4.10
	 	Notice to Holders	  	 	38	 
		
	 Article 5 PARTICULAR COVENANTS OF THE COMPANY
	  	 	39	 
			
	 Section 5.01
	 	Payment of Principal, Interest and Fundamental Change Purchase Price	  	 	39	 
	 Section 5.02
	 	Maintenance of Office or Agency	  	 	39	 
	 Section 5.03
	 	Appointments to Fill Vacancies in Trustee’s Office	  	 	40	 
	 Section 5.04
	 	Provisions as to Paying Agent	  	 	40	 
	 Section 5.05
	 	Reports	  	 	41	 
	 Section 5.06
	 	Statements as to Defaults	  	 	42	 
	 Section 5.07
	 	Supplementary Interest Notice	  	 	42	 
	 Section 5.08
	 	Covenant to Take Certain Actions	  	 	42	 
		
	 Article 6 REMEDIES
	  	 	42	 
			
	 Section 6.01
	 	Amendments to the Base Indenture	  	 	42	 

  
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	 	 	 	  	Page	 
	 Section 6.02
	 	Events of Default	  	 	43	 
	 Section 6.03
	 	Acceleration; Rescission and Annulment	  	 	44	 
	 Section 6.04
	 	Supplementary Interest	  	 	44	 
	 Section 6.05
	 	Waiver of Past Defaults	  	 	45	 
	 Section 6.06
	 	Control by Majority	  	 	45	 
	 Section 6.07
	 	Limitation on Suits	  	 	45	 
	 Section 6.08
	 	Rights of Holders to Receive Payment and to Convert	  	 	46	 
	 Section 6.09
	 	Collection of Indebtedness; Suit for Enforcement by Trustee	  	 	46	 
	 Section 6.10
	 	Trustee May Enforce Claims Without Possession of Securities	  	 	46	 
	 Section 6.11
	 	Trustee May File Proofs of Claim	  	 	46	 
	 Section 6.12
	 	Restoration of Rights and Remedies	  	 	47	 
	 Section 6.13
	 	Rights and Remedies Cumulative	  	 	47	 
	 Section 6.14
	 	Delay or Omission Not a Waiver	  	 	47	 
	 Section 6.15
	 	Priorities	  	 	47	 
	 Section 6.16
	 	Undertaking for Costs	  	 	48	 
	 Section 6.17
	 	Waiver of Stay, Extension and Usury Laws	  	 	48	 
	 Section 6.18
	 	Notices from the Trustee	  	 	48	 
		
	 Article 7 SATISFACTION AND DISCHARGE
	  	 	49	 
			
	 Section 7.01
	 	Inapplicability of Provisions of Base Indenture; Satisfaction and Discharge of the Indenture	  	 	49	 
	 Section 7.02
	 	Deposited Monies to Be Held in Trust by Trustee	  	 	50	 
	 Section 7.03
	 	Paying Agent to Repay Monies Held	  	 	50	 
	 Section 7.04
	 	Return of Unclaimed Monies	  	 	50	 
	 Section 7.05
	 	Reinstatement	  	 	50	 
		
	 Article 8 SUPPLEMENTAL INDENTURES
	  	 	50	 
			
	 Section 8.01
	 	Supplemental Indentures Without Consent of Holders	  	 	50	 
	 Section 8.02
	 	Supplemental Indentures With Consent of Holders	  	 	51	 
	 Section 8.03
	 	Notice of Amendment or Supplement	  	 	53	 
		
	 Article 9 SUCCESSOR COMPANY
	  	 	53	 
			
	 Section 9.01
	 	Consolidation, Merger and Sale of Assets	  	 	53	 
	 Section 9.02
	 	Company May Consolidate, Etc.	  	 	53	 
	 Section 9.03
	 	Successor Corporation to Be Substituted	  	 	53	 
	 Section 9.04
	 	Opinion of Counsel to Be Given to Trustee	  	 	54	 
		
	 Article 10 MEETING OF HOLDERS OF SECURITIES
	  	 	54	 
			
	 Section 10.01
	 	Purposes for Which Meetings May Be Called	  	 	54	 
	 Section 10.02
	 	Call, Notice and Place of Meetings	  	 	54	 
	 Section 10.03
	 	Persons Entitled to Vote at Meetings	  	 	55	 
	 Section 10.04
	 	Quorum; Action	  	 	55	 
	 Section 10.05
	 	Determination of Voting Rights; Conduct and Adjournment of Meetings	  	 	56	 
	 Section 10.06
	 	Counting Votes and Recording Action of Meetings	  	 	57	 
		
	 Article 11 MISCELLANEOUS
	  	 	57	 
			
	 Section 11.01
	 	Effect on Successors and Assigns	  	 	57	 
	 Section 11.02
	 	Governing Law; Jurisdiction; Waiver of Jury Trial	  	 	57	 
	 Section 11.03
	 	No Security Interest Created	  	 	58	 
	 Section 11.04
	 	Trust Indenture Act	  	 	58	 
	 Section 11.05
	 	Benefits of Supplemental Indenture	  	 	58	 
	 Section 11.06
	 	Calculations	  	 	58	 

  
 ii 

							
	 	 	 	  	Page	 
	 Section 11.07
	 	Execution in Counterparts	  	 	59	 
	 Section 11.08
	 	Notices	  	 	59	 
	 Section 11.09
	 	Ratification of Base Indenture	  	 	59	 
	 Section 11.10
	 	The Trustee	  	 	59	 
	 Section 11.11
	 	No Recourse Against Others	  	 	59	 
		
	 SCHEDULE
	  			
	 Schedule A Additional Shares
	  			
		
	 EXHIBIT
	  			
	 Exhibit A Form of Security
	  			

  
 iii 

 FIRST SUPPLEMENTAL INDENTURE (this “Supplemental Indenture”), dated as of
June 3, 2019, between MFA Financial, Inc., a Maryland corporation (the “Company”), and Wilmington Trust, National Association (the “Trustee”), a national banking association organized under the laws of the United
States, as trustee under the Indenture dated as of June 3, 2019, between the Company and the Trustee (as amended or supplemented from time to time in accordance with the terms thereof, the “Base Indenture”). 

RECITALS OF THE COMPANY 

WHEREAS, the Company executed and delivered the Base Indenture to the Trustee to provide, among other things, for the issuance, from time to
time, of the Company’s unsecured senior debt Securities, in an unlimited aggregate principal amount, in one or more series to be established by the Company under, and authenticated and delivered as provided in, the Base Indenture; 

WHEREAS, Section 901(4) of the Base Indenture provides for the Company and the Trustee to enter into supplemental indentures to the Base
Indenture to establish the form and terms of Securities of any series as contemplated by Articles Two and Three of the Base Indenture; 

WHEREAS, the Board of Directors has duly adopted resolutions authorizing the Company to execute and deliver this Supplemental Indenture; 

WHEREAS, pursuant to the terms of the Base Indenture, the Company has authorized the creation and issuance under this Supplemental Indenture
of its 6.25% Convertible Senior Notes due 2024 (the “Securities”), the form and substance of such Securities and the terms, provisions and conditions thereof to be set forth as provided in the Base Indenture and this Supplemental
Indenture; and 
 WHEREAS, all requirements necessary to make (i) this Supplemental Indenture a valid instrument in accordance with its
terms, and (ii) the Securities, when executed by the Company and authenticated and delivered by the Trustee, the valid obligations of the Company have been performed, and the execution and delivery of this Supplemental Indenture have been duly
authorized in all respects, and the Company has requested that the Trustee execute and deliver this Supplemental Indenture. 
 NOW,
THEREFORE, THIS SUPPLEMENTAL INDENTURE WITNESSETH, for and in consideration of the premises and the purchases of the Securities by the Holders thereof, it is mutually agreed, for the benefit of the Company and the equal and proportionate benefit of
all Holders, as follows: 

 ARTICLE 1 

DEFINITIONS AND OTHER PROVISIONS OF GENERAL APPLICATION 

Section 1.01    Scope of Supplemental Indenture. The changes, modifications and
supplements to the Base Indenture effected by this Supplemental Indenture shall be applicable only with respect to, and shall govern only the terms of (and only the rights of the Holders and the obligations of the Company with respect to), the
Securities, which may be issued from time to time, and shall not apply to any other securities that may be issued under the Base Indenture (or govern the rights of the Holders or the obligations of the Company with respect to any such other
securities) unless a supplemental indenture with respect to such other securities specifically incorporates such changes, modifications and supplements. The provisions of this Supplemental Indenture shall, with respect to the Securities, supersede
any corresponding provisions in the Base Indenture. Subject to the preceding sentence, and except as otherwise provided herein, the provisions of the Base Indenture shall apply to the Securities and govern the rights of the Holders of the Securities
and the obligations of the Company and the Trustee with respect thereto. 

Section 1.02    Definitions. For all purposes of the Indenture, except as
otherwise expressly provided or unless the context otherwise requires: 
 (i)    the terms defined in
this Article 1 shall have the meanings assigned to them in this Article 1 and include the plural as well as the singular; and 

(ii)    all words, terms and phrases defined in the Base Indenture (but not otherwise defined herein) shall
have the same meanings as in the Base Indenture. 
 “Additional Shares” has the meaning specified in Section 4.06(a)
hereof. 
 “Agent Members” has the meaning specified in Section 2.02(c) hereof. 

“Applicable Dividend or Distribution” has the meaning specified in Section 4.04(d) hereof. 

“Applicable Procedures” means, with respect to any matter at any time, the policies and procedures of the Depository, if any,
that are applicable to such matter at such time. 
 “Averaging Period” has the meaning specified in Section 4.04(e)
hereof. 
 “Base Indenture” has the meaning specified in the first paragraph of this Supplemental Indenture, as such
instrument may be supplemented from time to time by one or more indentures supplemental thereto, including this Supplemental Indenture, entered into pursuant to the applicable provisions of the Base Indenture, including, for all purposes of the Base
Indenture, this Supplemental Indenture and any such other supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of and govern the Base Indenture, this Supplemental Indenture and any other such supplemental
indentures, respectively. 
 “Business Day” means, notwithstanding anything to the contrary in Section 101 of the Base
Indenture, any day other than a Saturday, a Sunday or a day on which the Trustee or the 

  
 2 

 
Federal Reserve Bank of New York is authorized or required by law, regulation or executive order to close or to be closed and, when used with respect to payments, any day other than a Saturday, a
Sunday or a day on which trust companies or banking institutions in the place of payment are authorized or obligated by law, regulation or executive order to close or to be closed. 

“Capital Stock” means, for any Person, any and all shares, interests, rights to purchase, warrants, options, participations
or other equivalents of or interests in (however designated) the equity of such Person, but excluding any debt securities convertible into such equity. 

“Clause A Distribution” has the meaning specified in Section 4.04(c) hereof. 

“Clause B Distribution” has the meaning specified in Section 4.04(c) hereof. 

“Clause C Distribution” has the meaning specified in Section 4.04(c) hereof. 

“Close of Business” means 5:00 p.m., New York City time. 

“Common Equity” of any Person means the 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, subject to Section 4.07, the shares of common stock, par value $0.01 per share, of the
Company authorized at the date of this instrument as originally executed or shares of any class or classes of common stock resulting from any reclassification or reclassifications thereof; provided, however, that if at any time there
shall be more than one such resulting class, the shares so issuable on conversion of Securities shall include shares of all such classes, and the shares of each such class then so issuable shall be substantially in the proportion which the total
number of shares of such class resulting from all such reclassifications bears to the total number of shares of all such classes resulting from all such reclassifications. “Common Stock” includes any stock of any class of Capital Stock
which has no preference in respect of dividends or of amounts payable in the event of any voluntary or involuntary liquidation, dissolution or winding up of the issuer thereof and which is not subject to redemption by the issuer thereof. 

“Company” has the meaning specified in the first paragraph of this Supplemental Indenture, and subject to the provisions of
Section 9.02, shall include its successors and assigns. 
 “Continuing Director” means a director who either was a
member of the Company’s board of directors on the date of the Preliminary Prospectus Supplement or who becomes a member of the Company’s board of directors subsequent to that date and whose election, appointment or nomination for election
by the Company’s stockholders is duly approved by a majority of the “Continuing Directors” on the Company’s board of directors at the time of such approval, either by a specific vote or by approval of the proxy statement issued
by the Company on behalf of the Company’s entire board of directors in which such individual is named as nominee for director. 

  
 3 

 “Conversion Agent” means the office or agency designated by the Company
where Securities may be presented for conversion as specified in Section 5.02. 
 “Conversion Date” has the meaning
specified in Section 4.02(b) hereof. 
 “Conversion Notice” has the meaning specified in Section 4.02(b)(1)
hereof. 
 “Conversion Obligation” has the meaning specified in Section 4.03(a) hereof. 

“Conversion Price” means, in respect of each Security, as of any date, $1,000 divided by the Conversion Rate in effect
on such date. 
 “Conversion Rate” means initially 125.7387 shares of Common Stock per $1,000 principal amount of
Securities, subject to adjustment as set forth herein. 
 “Corporate Trust Office” means the office of the Trustee at
which, at any particular time, this Indenture shall be principally administered, which office as of the date of this instrument is located at Wilmington Trust, National Association, 50 South Sixth Street, Suite 1290, Minneapolis, Minnesota 55402,
Attn: MFA Financial, Inc. Administrator, or, such other address as the Trustee may designate from time to time by notice to the Company. 

“Custodian” means the Trustee, as custodian with respect to the Securities (so long as the Securities constitute Global
Securities), or any successor entity. 
 “Default” means any event that is, or with the passage of time or the giving of
notice or both would be, an Event of Default. 
 “Dividend Period” has the meaning specified in Section 4.04(d)
hereof. 
 “Dividend Threshold Amount” has the meaning specified in Section 4.04(d) hereof. 

“Effective Date” has the meaning specified in Section 4.06(b) hereof. 

“Event of Default” has the meaning, notwithstanding anything to the contrary in Section 101 of the Base Indenture,
specified in Section 6.02 hereof. 
 “Ex-Dividend 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, without the right to receive the issuance, dividend or distribution in question, from us or, if applicable, from the seller of the
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. 

“Form of Assignment and Transfer” means the “Form of Assignment and Transfer” attached as Attachment 3 to
the Form of Security attached hereto as Exhibit A. 

  
 4 

 “Form of Fundamental Change Purchase Notice” means the “Form of
Fundamental Change Purchase Notice” attached as Attachment 2 to the Form of Security attached hereto as Exhibit A. 

“Form of Notice of Conversion” means the “Form of Notice of Conversion” attached as Attachment 1 to the Form
of Security attached hereto as Exhibit A. 
 “Fundamental Change” shall be deemed to have occurred at the time after
the Securities are originally issued if any of the following occurs: 
 (1)    a “person” or “group”
within the meaning of Section 13(d) of the Exchange Act, other than the Company, its wholly owned Subsidiaries and the employee benefit plans of the Company and its wholly owned Subsidiaries, has become the direct or indirect “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; 

(2)    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 us
pursuant to which the Common Stock will be converted into cash, securities or other property or assets; or (C) any sale, lease or other transfer in one transaction or a series of transactions of all or substantially all of the consolidated
assets of the Company and its Subsidiaries, taken as a whole, to any person other than one of the Company’s wholly owned Subsidiaries; provided, however, that a transaction described in clause (B): 

(i) 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 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 or 
 (ii) effected solely to change the Company’s jurisdiction of incorporation or to form a holding company for us and
that results in a share exchange or reclassification or similar exchange of the outstanding Common Stock solely into common stock of the surviving entity 

shall not be a Fundamental Change pursuant to this clause (2); 

(3)    Continuing Directors cease to constitute at least a majority of the Board of Directors; 

(4)    the Company’s stockholders approve any plan or proposal for the liquidation or dissolution of the Company
(other than in a transaction described in clause (2) above); or 
 (5)    the Common Stock ceases to be listed on
the New York Stock Exchange, the Nasdaq Global Select Market or the Nasdaq Global Market (or any of their respective successors; 

  
 5 

 provided, however, that in the case of a transaction or transactions described in clause
(1) or (2) above, if at least 90% of the consideration received or to be received by holders of the Common Stock (excluding cash payments for fractional shares) in the transaction or transactions that would otherwise constitute a
“Fundamental Change” consists of shares of common stock or common equity interests that are traded on the New York Stock Exchange, the Nasdaq Global Select Market or the Nasdaq Global Market (or any of their respective successors) or that
will be so traded when issued or exchanged in connection with the transaction or transactions that would otherwise constitute a “Fundamental Change” under clause (1) or (2) above (“Publicly Traded Securities”), and as
a result of such transaction or transactions, the Securities become convertible into or by reference to such Publicly Traded Securities, excluding cash payments for fractional shares (subject to settlement in accordance with the provisions of
Sections 4.03, 4.04 and 4.06 hereof), such transaction or transactions will not be a “Fundamental Change.” 
 “Fundamental
Change Company Notice” has the meaning specified in Section 3.02(b) hereof. 
 “Fundamental Change Expiration
Time” has the meaning specified in Section 3.02(a)(1) hereof. 
 “Fundamental Change Purchase Date” has the
meaning specified in Section 3.02(a) hereof. 
 “Fundamental Change Purchase Notice” has the meaning specified in
Section 3.02(a)(1) hereof. 
 “Fundamental Change Purchase Price” has the meaning specified in Section 3.02(a)
hereof. 
 “Global Security” means a Security which is executed by the Company and authenticated and delivered to the
Depository or its nominee, all in accordance with the Indenture and pursuant to a Company Order, which shall be registered in the name of the Depository or its nominee and which shall represent the amount of uncertificated Securities as specified
therein. 
 “Holder” means, notwithstanding anything to the contrary in Section 101 of the Base Indenture, the Person
in whose name a Security is registered in the Security Register. 
 “Indenture” means, notwithstanding anything to the
contrary in Section 101 of the Base Indenture, the Base Indenture, as originally executed and as supplemented by this Supplemental Indenture, each as may be amended or supplemented from time to time. 

“Interest Payment Date” means, with respect to the payment of interest on the Securities and notwithstanding anything to the
contrary in Section 101 of the Base Indenture, each June 15 and December 15 of each year, beginning on December 15, 2019. 

“Issue Date” means, with respect to the Securities, June 3, 2019. 

  
 6 

 “Last Reported Sale Price” of the Common Stock for any date means the
closing sale price per share (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) 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” will be the last quoted bid price 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” will be the average of the mid-point of the bid and ask prices 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, which may include the underwriters. 

“Make-Whole Fundamental Change” means any event that (i) is a Fundamental Change or (ii) would be a Fundamental
Change, but for the exclusion in section (i) of clause (2) of the definition thereof. 
 “Maturity Date” means,
with respect to any Security and the payment of the principal amount thereof, June 15, 2024. 
 “Merger Event” has the
meaning specified in Section 4.07(a) hereof. 
 “Notice of Default” has the meaning, notwithstanding anything to the
contrary in the Base Indenture, specified in Section 6.02(f) hereof. 
 “Offer Expiration Date” has the meaning
specified in Section 4.04(e) hereof. 
 “Open of Business” means 9:00 a.m., New York City time. 

“Outstanding” means, with respect to the Securities, notwithstanding anything to the contrary in Section 101 of the Base
Indenture, any Securities authenticated by the Trustee except (i) Securities cancelled by it, (ii) Securities delivered to it for cancellation and (iii)(A) Securities replaced pursuant to Section 306 of the Base Indenture, on and
after the time such Security is replaced (unless the Trustee and the Company receive proof satisfactory to them that such Security is held by a bona fide purchaser), (B) Securities converted pursuant to Article 4 hereof, on and after their
Conversion Date, (C) any and all Securities, as of the Maturity Date, if the Paying Agent holds, in accordance with this Indenture, money sufficient to pay all of the Securities then payable, and (D) any and all Securities owned by the
Company or any other obligor upon the Securities or any Affiliate of the Company or of such other obligor, except that in determining whether the Trustee shall be protected in relying upon any request, demand, authorization, direction, notice,
consent or waiver or other action that is to be made by a requisite principal amount of Outstanding Securities, for purposes of clause (D) only those Securities identified to the Trustee pursuant to an Officer’s Certificate shall be
disregarded and deemed not to be Outstanding. 
 “Paying Agent” has the meaning set forth in the Base Indenture and shall
be the Person authorized by the Company to pay the principal amount of, interest on, or Fundamental Change Purchase Price of, any Securities on behalf of the Company. 

  
 7 

 “Physical Securities” means any
non-Global Security issued pursuant to Section 2.03 hereof that is in definitive, fully registered form, without interest coupons. 

“Preliminary Prospectus Supplement” means the Preliminary Prospectus Supplement of the Company, dated May 29, 2019 and
relating to the offering and sale of the Securities, to the Prospectus of the Company dated November 16, 2016. 
 “Publicly
Traded Securities” has the meaning specified in the definition of “Fundamental Change” in this Section 1.02. 

“Record Date” has the meaning specified in Section 4.04(i) hereof. 

“Redemption Date” has the meaning specified in Section 3.01(a) hereof, notwithstanding anything to the contrary in
Section 101 of the Base Indenture. 
 “Redemption Price” has the meaning specified in Section 3.01(a) hereof,
notwithstanding anything to the contrary in Section 101 of the Base Indenture. 
 “Reference Property” has the meaning
specified in Section 4.07(a) hereof. 
 “Regular Record Date” means, with respect to any Interest Payment Date,
June 1 (whether or not a Business Day) or December 1 (whether or not a Business Day), as the case may be, immediately preceding such Interest Payment Date. 

“Reporting Event of Default” has the meaning specified in Section 6.04(a) hereof. 

“Security” or “Securities” has the meaning specified in the fourth paragraph of the Recitals of this
Supplemental Indenture, notwithstanding anything to the contrary in Section 101 of the Base Indenture. 
 “Spin-Off” has the meaning specified in Section 4.04(c) hereof. 
 “Stock
Price” has the meaning specified in Section 4.06(b) hereof. 
 “Stock Transfer Agent” has the meaning
specified in Section 4.08(c) hereof. 
 “Successor Company” has the meaning specified in Section 9.02(a) hereof.

 “Supplemental Indenture” has the meaning specified in the first paragraph hereof, as such instrument may be supplemented
from time to time by one or more indentures supplemental hereto, entered into pursuant to the applicable provisions of the Base Indenture and this Supplemental Indenture, including, for all purposes of this Supplemental Indenture and any such other
supplemental indenture, the provisions of the Trust Indenture Act that are deemed to be a part of and govern the Base Indenture, this Supplemental Indenture and any other such supplemental indenture, respectively. 

“Supplementary Interest” has the meaning specified in Section 6.04(a) hereof. 

  
 8 

 “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 New York Stock Exchange or, if the Common Stock (or such other Security) is not then listed on the New York Stock Exchange, 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 traded, and (ii) a Last Reported Sale Price for the Common Stock (or closing sale price for such other Security) is available on such securities exchange or market. If the Common
Stock (or such other Security) is not so listed or traded, “Trading Day” means a Business Day. 
 “Trigger Event”
has the meaning specified in Section 4.04(c) hereof. 
 “Trustee” means the Person named as the “Trustee” in
the first paragraph of this Supplemental Indenture until a successor Trustee shall have become such pursuant to the applicable provisions of the Base Indenture and this Supplemental Indenture, and thereafter “Trustee” shall mean or include
each Person who is then a Trustee hereunder. 
 “Unit of Reference Property” has the meaning specified in
Section 4.07(a) hereof. 
 “U.S.” or “United States” means the United States of America. 

“Valuation Period” has the meaning specified in Section 4.04(c)(3) hereof. 

Section 1.03     References to Interest. Any reference to interest on, or in respect of, any Security
in the Indenture shall be deemed to include Supplementary Interest if, in such context, Supplementary Interest is, was or would be payable pursuant to Section 6.04. Any express mention of the payment of Supplementary Interest in any provision
hereof shall not be construed as excluding Supplementary Interest in those provisions hereof where such express mention is not made. 
 
ARTICLE 2 
 THE SECURITIES 

Section 2.01    Title and Terms; Payments. 

(a)    Establishment; Designation. Pursuant to Section 301 of the Base Indenture, there is hereby established
and authorized a new series of Securities under the Indenture, which series of Securities shall be designated the “6.25% Convertible Senior Notes due 2024.” 

(b)    Initial Issuance. Subject to Section 2.01(c) hereof, the aggregate principal amount of Securities to be
authenticated and delivered on the date hereof is limited to $230,000,000. In addition, the Company may execute, and the Trustee may authenticate and deliver, in each case, in accordance with Section 303 of the Base Indenture, an unlimited
aggregate principal amount of additional Securities upon the transfer, exchange, purchase or conversion of Securities pursuant to Sections 304, 305 and 306 of the Base Indenture and Sections 3.06 and 4.02 hereof. 

  
 9 

 (c)    Further Issues. The Company may, without the consent of
the Holders, issue additional Securities under the Indenture with the same terms and the same CUSIP number as the Securities initially issued under the Indenture in an unlimited aggregate principal amount; provided, that the Company may issue
such additional Securities only if they are part of the same issue (and part of the same series) as the Securities initially issued hereunder for U.S. federal income tax purposes. Any such additional Securities will, for all purposes of the
Indenture, including waivers, amendments and offers to purchase, be treated as part of the same series as the Securities initially issued under the Indenture. 

(d)    Purchases. The Company and its Subsidiaries may from time to time purchase Securities in open market
purchases in negotiated transactions or otherwise without giving prior notice to or obtaining any consent of the Holders. Any Securities purchased by the Company or any of its Subsidiaries pursuant to the foregoing sentence or otherwise will be
retired and will no longer be Outstanding under the Indenture 
 (e)    Denominations. Pursuant to Sections 301
and 302 of the Base Indenture, the Securities will be issued only in minimum denominations of $1,000 and integral multiples of $1,000 in excess thereof. 

Section 2.02    Forms. 

(a)    In General. Pursuant to Article Two of the Base Indenture, the Securities will be substantially in the forms
set forth in Exhibit A hereto, and may include such insertions, omissions, substitutions and other variations as are required or permitted by the Indenture, and may have such letters, numbers or other marks of identification and such legends or
endorsements placed thereon as may be required to comply with the rules of any securities exchange or as may, consistently herewith, be determined by the officers executing such Securities, as evidenced by their execution of the Securities. 

Notwithstanding Section 305 of the Base Indenture, each Security will bear a Trustee’s certificate of authentication substantially
in the form included in Exhibit A hereto. Each Security will also bear the Form of Notice of Conversion, the Form of Fundamental Change Purchase Notice and the Form of Assignment and Transfer. 

Any Security that is a Global Security will bear a legend substantially in the form of the legend set forth in Exhibit A hereto and
shall also bear the “Schedule of Increases and Decreases of Global Security” set forth in Annex A to Exhibit A hereto. 

The terms and provisions contained in the Securities will constitute, and are hereby expressly made, a part of this Indenture and, to the
extent applicable, the Company and the Trustee, by their execution and delivery of this Supplemental Indenture, expressly agree to such terms and provisions and to be bound thereby. However, to the extent that any provision of any Security conflicts
with the express provisions of the Indenture, the provisions of this Indenture will govern and control. 

  
 10 

 (b)    Initial and Subsequent Form of Securities. The Company
hereby initially appoints The Depository Trust Company as the Depository for the Securities, which initially shall be issued in the form of one or more Global Securities without interest coupons (i) registered in the name of Cede &
Co., as nominee of the Depository, and (ii) delivered to the Trustee as custodian for the Depository. 
 So long as the Securities are
eligible for book-entry settlement with the Depository, unless otherwise required by law, and except to the extent provided in Section 2.03(c)(1) through (3) hereof, all Securities will be represented by one or more Global Securities. 

(c)    Global Securities. Each Global Security will represent the aggregate principal amount of the then
Outstanding Securities endorsed thereon and provide that it represents such aggregate principal amount of the then Outstanding Securities, which aggregate principal amount may, from time to time, be reduced or increased to reflect transfers,
exchanges, conversions or purchases by the Company. 
 Only the Trustee, or the Custodian holding such Global Security for the Depository,
at the direction of the Trustee, may endorse a Global Security to reflect the amount of any increase or decrease in the aggregate principal amount of the then Outstanding Securities represented thereby, and whenever the Holder of a Global Security
delivers instructions to the Trustee to increase or decrease the aggregate principal amount of the then Outstanding Securities represented by a Global Security in accordance with the Indenture and the Applicable Procedures, the Trustee, or the
Custodian holding such Global Security for the Depository, at the direction of the Trustee, will endorse such Global Security to reflect such increase or decrease in the aggregate principal amount of the then Outstanding Securities represented
thereby. None of the Trustee, the Company or any agent of the Trustee or the Company will have any responsibility or bear any liability for any aspect of the records relating to or payments made on account of the ownership of any beneficial interest
in a Global Security or with respect to maintaining, supervising or reviewing any records relating to such beneficial interest. 
 Members
of, or participants in, the Depository (“Agent Members”) shall have no rights under the Indenture with respect to any Global Security held on their behalf by the Depository, or the Trustee as its custodian, or under the Global
Security, and Cede & Co., or such other Persons designated by the Depository as its nominee, may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner of the Global Security for all
purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the
Depository or impair, as between the Depository and its Agent Members, the operation of customary practices governing the exercise of the rights of any Holder. 

Section 2.03    Transfer and Exchange. 

(a)    In General. Notwithstanding anything to the contrary in Article Three of the Base Indenture, the Company is
not required to transfer or exchange any Securities or portions thereof that have been surrendered for purchase in accordance with Article 3 hereof (unless the related Fundamental Change Purchase Notice is withdrawn in accordance with the

  
 11 

 
provisions of Section 3.04) or for conversion in accordance with Article 4 hereof, and a written form of transfer substantially in the form of the Form of Assignment and Transfer will be
deemed to be a written instrument of transfer satisfactory to the Company and the Security Registrar. 
 At such time as all interests in a
Global Security have been purchased, converted, cancelled or exchanged for Securities in certificated form, such Global Security shall, upon receipt thereof, be canceled by the Trustee in accordance with standing procedures and instructions existing
between the Depository and the Custodian for the Global Security. At any time prior to such cancellation, if any interest in a Global Security is purchased, converted, cancelled or exchanged for Securities in certificated form, the principal amount
of such Global Security shall, in accordance with the standing procedures and instructions existing between the Depository and the Custodian for the Global Security, be appropriately reduced, and an endorsement shall be made on such Global Security,
by the Trustee or the Custodian for the Global Security, at the direction of the Trustee, to reflect such reduction. 

(b)    Global Securities. Notwithstanding anything to the contrary in Section 305 of the Base Indenture, every
transfer and exchange of a beneficial interest in a Global Security will be effected through the Depository in accordance with the Applicable Procedures and the provisions of the Indenture, and each Global Security may be transferred only as a whole
and only (A) by the Depository to a nominee of the Depository, (B) by a nominee of the Depository to the Depository or to another nominee of the Depository, or (C) by the Depository or any such nominee to a successor Depository or a
nominee of such successor Depository. 
 (c)    Holders Deemed Owners. Prior to due presentment of a Security for
registration of transfer, the Company, the Trustee and any agent of the Company or the Trustee may treat the Person in whose name such Security is registered as the owner of such Security for the purpose of receiving payment of principal of and any
interest (subject to Section 307 of the Base Indenture) on such Security at the Maturity Date, in connection with a Fundamental Change, upon any conversion and for all other purposes whatsoever, including delivery of shares of Common Stock on
conversion, for distribution of notices to such Holders or solicitations of their consent, whether or not such Security be overdue, and neither the Company, the Trustee nor any agent of the Company or the Trustee shall be affected by notice to the
contrary. 
 Notwithstanding anything to the contrary in Section 305 of the Base Indenture: 

(1)    Each Global Security will be exchanged for Physical Securities if the Depository delivers notice to
the Company that the Depository is unwilling, unable or no longer permitted under applicable law to continue to act as Depository, and, in each case, the Company promptly delivers a copy of such notice to the Trustee and the Company fails to appoint
a successor Depository within 90 days after receiving notice from the Depository. 
 (2)    If an Event
of Default has occurred and is continuing, any owner of a beneficial interest in a Global Security may exchange such beneficial interest for Physical Securities by delivering a written request to the Depository, who shall in turn notify the Security
Registrar. 

  
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 (3)    If the Company notifies the Depository and
Trustee that the Securities shall no longer be represented by a Global Security and the beneficial owners of the majority of the principal amount of such Global Security (or portion thereof) consent to an exchange of Global Securities for Physical
Securities, the Company may exchange all beneficial interests in such Global Security (or portion thereof) for Physical Securities. 
 In the
case of an exchange for Physical Securities under clause (1) above: 
 (A)    each Global Security
will be deemed surrendered to the Trustee for cancellation; 
 (B)    the Trustee will cause each Global
Security to be cancelled in accordance with the Applicable Procedures; and 
 (C)    the Company, in
accordance with Section 303 of the Base Indenture, will promptly execute, and, upon receipt of a Company Request, the Trustee, in accordance with Section 303 of the Base Indenture, will promptly authenticate and deliver, for each
beneficial interest in each Global Security so exchanged, an aggregate principal amount of Physical Securities equal to the aggregate principal amount of such beneficial interest, registered in such names and in such authorized denominations as the
Depository specifies, and bearing any legends that such Physical Securities are required to bear under this Indenture. 
 In the case of an
exchange for Physical Securities under clause (2) above: 
 (A)    the Security Registrar will
deliver notice of such request to the Company and the Trustee, which notice will identify the owner of the beneficial interest to be exchanged, the aggregate principal amount of such beneficial interest and the CUSIP of the relevant Global Security,
in each case if and as such information is provided to the Security Registrar by the Depository; 

(B)    the Company, in accordance with Section 303 of the Base Indenture, will promptly execute, and,
upon receipt of a Company Request, the Trustee, in accordance with Section 303 of the Base Indenture, will promptly authenticate and deliver to such owner, for the beneficial interest so exchanged by such owner, Physical Securities registered
in the name specified by the Depository having an aggregate principal amount equal to the aggregate principal amount of such beneficial interest and bearing any legends that such Physical Securities are required to bear under this Indenture; and

 (C)    the Security Registrar, in accordance with the Applicable Procedures, will cause the principal
amount of such Global Security to be decreased by the aggregate principal amount of the beneficial interest so exchanged. If all of the beneficial interests in a Global Security are so exchanged, such Global Security will be deemed surrendered to
the Trustee for cancellation, and the Trustee will cause such Global Security to be cancelled in accordance with the Applicable Procedures. 

  
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 In the case of an exchange for Physical Securities under clause (3) above: 

(A)    the Company shall deliver notice of such request to the Security Registrar and the Trustee, which
notice will identify each owner of a beneficial interest to be exchanged, the aggregate principal amount of each such beneficial interest and the CUSIP of the relevant Global Security; 

(B) the Company, in accordance with Section 303 of the Base Indenture, shall promptly execute, and, upon receipt of a
Company Request, the Trustee, in accordance with Section 303 of the Base Indenture, will promptly authenticate and deliver to each such beneficial owner, Physical Securities registered in such beneficial owner’s name having an aggregate
principal amount equal to the aggregate principal amount of its exchanged beneficial interest and bearing any legends that such Physical Securities are required to bear under this Indenture and any applicable law; and 

(C)    the Security Registrar, in accordance with the Applicable Procedures, will cause the principal
amount of each relevant Global Security to be decreased by the aggregate principal amount of the beneficial interests so exchanged. If all of the beneficial interests in a Global Security are so exchanged, such Global Security will be deemed
surrendered to the Trustee for cancellation, and the Trustee will cause such Global Security to be cancelled in accordance with the Applicable Procedures. 

In each of the cases described in clauses (1), (2) and (3) above, the Company, the Security Registrar and the Trustee may rely on the
Depository to provide all names of beneficial owners and their respective principal amounts beneficially owned and the Company may issue Physical Securities registered in the names and amounts so provided by the Depository. 

(d)    Physical Securities. Except to the extent otherwise provided in Section 2.03(a) hereof, Physical
Securities may be transferred or exchanged in accordance with Section 305 of the Base Indenture. 

Section 2.04    Payments on the Securities. 

(a)    In General. Each Security will accrue cash interest at a rate equal to 6.25% per annum from the most recent
date to which interest has been paid or duly provided for, or, if no interest has been paid or duly provided for, the Issue Date. Interest on a Security will cease to accrue upon the earliest of the Maturity Date, subject to the provisions of
Article 3 hereof, any Fundamental Change Purchase Date for such Security, and subject to the provisions of Article 4 hereof, any Conversion Date for such Security. Interest on any Security will be payable semi-annually in arrears on each Interest
Payment Date, beginning December 15, 2019, to the Holder of such Security as of the Close of Business on the Regular Record Date immediately preceding the applicable Interest Payment Date. As provided in Section 310 of the Base Indenture,
interest will be computed on the basis of a 360-day year comprised of twelve 30-day months and, for partial months, on the basis of the number of days actually elapsed in a
30-day month. 

  
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 The Securities will mature on the Maturity Date, and on the Maturity Date, each Holder of a
then Outstanding Security will be entitled on such date to receive $1,000 in cash for each $1,000 in principal amount of then Outstanding Securities held, together with accrued and unpaid interest to, but not including, the Maturity Date on such
then Outstanding Securities. 
 Notwithstanding anything to the contrary, if the Maturity Date or any Interest Payment Date or Fundamental
Change Purchase Date or any Conversion Date falls, or if any payment, delivery, notice or other action by the Company is otherwise due, on a day that is not a Business Day, then any action to be taken on such date need not be taken on such date, but
may be taken on the immediately following Business Day with the same force and effect as if taken on such date, and no additional interest will accrue and no Default shall occur on account of such delay. 

(b)    Method of Payment. The Company shall pay the principal of, the Fundamental Change Purchase Price for, and
any cash in lieu of delivering any fractional shares of Common Stock upon the conversion of, any Physical Security to the Holder of such Security in cash at the designated office of the Paying Agent in the United States, prior to 10:00 a.m. on the
relevant payment or settlement date, as the case may be. Interest on any Physical Security will be payable by the Company (i) to Holders having an aggregate principal amount of $2,000,000 or less, by check mailed to the Holders of such Security
and (ii) to Holders having an aggregate principal amount of more than $2,000,000, either by check mailed to each Holder or, upon application by such a Holder to the Security Registrar not later than the relevant Regular Record Date, by wire
transfer in immediately available funds to that Holder’s account within the United States, which application will remain in effect until the Holder notifies, in writing, the Security Registrar to the contrary. 

The Company shall pay the principal of, interest on, the Fundamental Change Purchase Price for, and any cash in lieu of delivering any
fractional shares of Common Stock upon the conversion of, any Global Security to the Depository by wire transfer of immediately available funds on the relevant payment date in accordance with Applicable Procedures. 

(c)    Defaulted Payments. The Company shall pay any interest on the Securities that is payable, but is not
punctually paid or duly provided for on the applicable Interest Payment Date, in accordance with Section 307 of the Base Indenture. 

ARTICLE 3 

REDEMPTIONS AND PURCHASES 

Section 3.01    Amendments to the Base Indenture. 

(a)    Redemption of Securities to Preserve REIT Status. Notwithstanding anything to the contrary in Article Eleven
of the Base Indenture, the Company may not redeem the Securities at its option prior to the Maturity Date, except to the extent, and only to the extent, necessary to preserve the Company’s status as a real estate investment trust for U.S.
federal income tax purposes. If the Company determines that redeeming the Securities is necessary to 

  
 15 

 
preserve such status, then the Company may redeem, on a Business Day (the “Redemption Date”) of the Company’s choosing that is no more than 60, nor less than 30, days after
the date the related redemption notice is sent pursuant to Section 3.01(b) hereof, all or part (in a principal amount that is an integral multiple of $1,000) of the Securities at a cash price (the “Redemption Price”) equal to
the principal amount of the Securities to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the Redemption Date; provided, however, that if the Redemption Date for a Security is after a Regular Record Date for
the payment of interest and on or prior to the corresponding Interest Payment Date, then (x) the Company shall pay, on or before such Interest Payment Date, the full amount of accrued and unpaid interest payable on such Security on such
Interest Payment Date to the Holder of such Security at the Close of Business on such Regular Record Date; and (y) the Redemption Price will not include such accrued and unpaid interest. Notwithstanding anything to the contrary in this
Section 3.01(a), no Securities may be redeemed on any date if the principal amount of the Securities 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 applicable Redemption Price with respect to such Securities). 

(b)    Notice of Redemption. With the exclusion of the first sentence of Section 1102 of the Base
Indenture, Section 1102 of the Base Indenture and the first and last two sentences of Section 1104 of the Base Indenture will not apply to the Securities. The Company shall send to the Trustee, the Paying Agent, if other than the Trustee,
and each applicable Holder notice of any Redemption Date pursuant to Section 3.01(a) containing the information set forth in clauses (1) through (6), inclusive, and clauses (8) through (9) of Section 1104 of the Base Indenture.

 (c)    Partial Redemptions. If only a portion of a Security is subject to redemption pursuant to
Section 3.01(a) and such Security is converted in part, then the converted portion of such Security will be deemed to be from the portion of such Security that was subject to redemption. 

(d)    No Sinking Fund. Article Twelve of the Base Indenture will not apply to the Securities. 

Section 3.02    Purchase at Option of Holders upon a Fundamental Change. 

(a)    If a Fundamental Change occurs, then each Holder shall have the right, at such Holder’s option, to require the
Company to purchase for cash all of such Holder’s Securities, or any portion thereof such that the remaining principal amount of each Security that is not purchased in full equals $1,000 or an integral multiple of $1,000 in excess thereof, on a
date (the “Fundamental Change Purchase Date”) specified by the Company that is not less than 20 calendar days or more than 35 calendar days following the date on which the Company delivers the Fundamental Change Company Notice, at a
purchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon, if any, to, but excluding, the Fundamental Change Purchase Date (the “Fundamental Change Purchase Price”); provided,
however, that if the Company purchases a Security on a Fundamental Change Purchase Date that is after a Regular Record Date and on or prior to the Interest Payment Date corresponding to such Regular Record Date, the Company shall instead pay
such accrued and unpaid interest on such Security on the Interest Payment Date to the Holder of record of such Security as of such Regular Record Date. 

  
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 Purchases of Securities under this Section 3.02 shall be made, at the option of the
Holder thereof, upon: 
 (1)    if the Securities to be purchased are Physical Securities, delivery to
the Paying Agent by the Holder of a duly completed notice (the “Fundamental Change Purchase Notice”) in the form set forth in Attachment 2 to the Form of Security attached hereto as Exhibit A and of the Securities,
duly endorsed for transfer, on or before the Close of Business on the Business Day immediately preceding the Fundamental Change Purchase Date, subject to extensions to comply with applicable law (the “Fundamental Change Expiration
Time”); and 
 (2)    if the Securities to be purchased are Global Securities, delivery of the
Securities, by book-entry transfer, in compliance with the Applicable Procedures of the Depository and the satisfaction of any other requirements of the Depository in connection with tendering beneficial interests in a Global Security for purchase,
by the Fundamental Change Expiration Time. 
 The Fundamental Change Purchase Notice in respect of any Securities to be purchased shall
state: 
 (1)    if certificated, the certificate numbers of such Securities; 

(2)    the portion of the principal amount of such Securities, which must be such that the principal amount
that is not to be purchased of each Security that is not to be purchased in full equals $1,000 or an integral multiple of $1,000 in excess thereof; and 

(3)    that such Securities are to be purchased by the Company pursuant to the applicable provisions of the
Securities and this Indenture. 
 Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the Fundamental
Change Purchase Notice contemplated by this Section 3.02 shall have the right to withdraw, in whole or in part, such Fundamental Change Purchase Notice at any time prior to the Fundamental Change Expiration Time by delivery of a notice of
withdrawal to the Paying Agent in accordance with Section 3.04. 
 The Paying Agent shall promptly notify the Company of the receipt by
it of any Fundamental Change Purchase Notice or notice of withdrawal given in accordance with Section 3.04. 

(b)    On or before the 20th calendar day after the occurrence of a Fundamental Change, the Company shall provide to all
Holders of the Securities, the Trustee, the Conversion Agent and the Paying Agent (in the case of any Paying Agent other than the Trustee) a notice (the “Fundamental Change Company Notice”) of the occurrence of such Fundamental
Change and of the purchase right at the option of the Holders arising as a result thereof. Such notice shall 

  
 17 

 
be sent by first class mail or, in the case of any Global Securities, in accordance with the procedures of the Depository for providing notices. Simultaneously with providing such Fundamental
Change Company Notice, the Company shall publish this information in a newspaper of general circulation in The City of New York or publish the information on the Company’s website or through such other public medium as the Company may use at
that time. 
 Each Fundamental Change Company Notice shall specify: 

(1)    the events causing the Fundamental Change; 

(2)    the date of the Fundamental Change; 

(3)    the last date on which a Holder of Securities may exercise the purchase right pursuant to this
Article 3; 
 (4)    the Fundamental Change Purchase Price; 

(5)    the Fundamental Change Purchase Date; 

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

(7)    the applicable Conversion Rate and any adjustments to the applicable Conversion Rate; 

(8)    that the Securities with respect to which a Fundamental Change Purchase Notice has been delivered by
a Holder may be converted only if the Holder withdraws the Fundamental Change Purchase Notice in accordance with this Indenture; 

(9)    that the Holder shall have the right to withdraw any Securities surrendered for purchase prior to
the Fundamental Change Expiration Time; and 
 (10)    the procedures that Holders must follow to require
the Company to purchase their Securities. 
 No failure of the Company to give the foregoing notices and no defect therein shall limit the
purchase rights of the Holders of Securities or affect the validity of the proceedings for the purchase of the Securities pursuant to this Section 3.02. 

(c)    Notwithstanding the foregoing, there shall be no purchase of any Securities pursuant to this Section 3.02 if
the principal amount of the Securities has been accelerated, and such acceleration has not been rescinded, on or prior to the Fundamental Change Purchase Date (except in the case of an acceleration resulting from a Default by the Company in the
payment of the Fundamental Change Purchase Price with respect to such Securities). The Paying Agent shall promptly return to the respective Holders thereof any Physical Securities held by it during the acceleration of the Securities (except in the
case of an acceleration resulting from 

  
 18 

 
a Default by the Company in the payment of the Fundamental Change Purchase Price with respect to such Securities) and shall deem to be cancelled any instructions for book-entry transfer of the
Securities in compliance with the procedures of the Depository, in which case, upon such return or cancellation, as the case may be, the Fundamental Change Purchase Notice with respect thereto shall be deemed to have been withdrawn. 

(d)    Notwithstanding the other provisions of this Article 3, the Company shall not be required to make an offer to
purchase the Securities upon a Fundamental Change if a third party makes such an offer in the manner, at the times and otherwise in compliance with the requirements in this Indenture and such third party purchases all Securities properly tendered
and not validly withdrawn under its offer. 
 Section 3.03    Effect of
Fundamental Change Purchase Notice. Upon receipt by the Paying Agent of a Fundamental Change Purchase Notice specified in Section 3.02, the Holder of the Security in respect of which such Fundamental Change Purchase Notice was given shall
(unless such Fundamental Change Purchase Notice is withdrawn in accordance with Section 3.04) thereafter be entitled to receive solely the Fundamental Change Purchase Price in cash with respect to such Security (and any previously accrued and
unpaid interest on such Security). Such Fundamental Change Purchase Price shall be paid to such Holder, subject to receipt of funds by the Paying Agent, on the later of (x) the applicable Fundamental Change Purchase Date (provided the
conditions in Section 3.02 have been satisfied) and (y) the time of delivery or book-entry transfer of such Security to the Paying Agent by the Holder thereof in the manner required by Section 3.02, subject in each case to extensions
to comply with applicable law, 
 Section 3.04    Withdrawal of Fundamental
Change Purchase Notice. A Fundamental Change Purchase 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 the Fundamental Change Company Notice at any time
prior to the Fundamental Change Expiration Time, specifying: 
 (1)    the principal amount of the
Securities with respect to which such notice of withdrawal is being submitted; 
 (2)    if Physical
Securities have been issued, the certificate numbers of the withdrawn Securities; and 
 (3)    the
principal amount, if any, of each Security that remains subject to the Fundamental Change Purchase Notice, which must be such that the principal amount not to be purchased equals $1,000 or an integral multiple of $1,000 in excess thereof; 

provided, however, that if the Securities are Global Securities, the notice must comply with Applicable Procedures of the Depository. 

The Paying Agent shall promptly return to the respective Holders thereof any Physical Securities with respect to which a Fundamental Change
Purchase Notice has been withdrawn in compliance with the provisions of this Section 3.04. 

  
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 Section 3.05    Deposit of
Fundamental Change Purchase Price. Prior to 10:00 a.m., New York City time, on the Fundamental Change Purchase Date, the Company shall deposit with the Paying Agent (or, if the Company or a Subsidiary or an Affiliate of either of them is acting
as the Paying Agent, shall segregate and hold in trust as provided herein) an amount of money (in immediately available funds if deposited on such Business Day) sufficient to pay the Fundamental Change Purchase Price of all the Securities or
portions thereof that are to be purchased as of the Fundamental Change Purchase Date. If the Paying Agent holds cash sufficient to pay the Fundamental Change Purchase Price of the Securities for which a Fundamental Change Purchase Notice has been
tendered and not withdrawn in accordance with this Indenture on the Fundamental Change Purchase Date, then as of such Fundamental Change Purchase Date, (a) such Securities will cease to be Outstanding and interest will cease to accrue thereon
(whether or not book-entry transfer of such Securities is made or such Securities have been delivered to the Paying Agent) and (b) all other rights of the Holders in respect thereof will terminate (other than the right to receive the
Fundamental Change Purchase Price upon delivery or book-entry transfer of such Securities). 

Section 3.06    Securities Purchased in Whole or in Part. Any Security that is
to be purchased, whether in whole or in part, shall be surrendered at the office of the Paying Agent (with, if the Company or the Trustee so requires in the case of Physical Securities, due endorsement by, or a written instrument of transfer in form
satisfactory to the Company and the Trustee duly executed by, the Holder thereof or such Holder’s attorney duly authorized in writing) and the Company shall execute and the Trustee shall authenticate and deliver to the Holder of such Security,
without service charge, a new Security or Securities, of any authorized denomination as requested by such Holder in aggregate principal amount equal to, and in exchange for, the portion of the principal amount of the Security so surrendered that is
not purchased. 
 Section 3.07    Covenant To Comply with Applicable Laws upon
Purchase of Securities. In connection with any offer to purchase Securities under Section 3.02, the Company shall, in each case if required by law, (i) comply with Rule 13e-4, Rule 14e-1 and any other tender offer rules under the Exchange Act that may then be applicable, (ii) file a Schedule TO or any other required schedule under the Exchange Act and (iii) otherwise comply with all
federal and state securities laws applicable to the Company in connection with such purchase offer, in each case, so as to permit the rights and obligations under Section 3.02 to be exercised in the time and in the manner specified in
Section 3.02. 
 Section 3.08    Repayment to the Company. To the
extent that the aggregate amount of cash deposited by the Company pursuant to Section 3.05 exceeds the aggregate Fundamental Change Purchase Price of the Securities or portions thereof that the Company is obligated to purchase as of the
Fundamental Change Purchase Date, then, following the Fundamental Change Purchase Date, the Paying Agent shall promptly return any such excess to the Company. 

ARTICLE 4 

CONVERSION 
 
Section 4.01    Right To Convert. 

  
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 (a) Upon compliance with the provisions of this Indenture, at any time prior to the Close of
Business on the Business Day immediately preceding the Maturity Date, the Holder of any Securities not previously repurchased shall have the right, at such Holder’s option, to convert its Securities, or any portion thereof which is a multiple
of $1,000, into Common Stock, as provided in Section 4.03, by surrender of such Securities so to be converted in whole or in part, together with any required funds, under the circumstances and in the manner described in this Article 4. 

(b) Notwithstanding any other provision of the Securities or this Indenture, no Holder of Securities will be entitled to receive Common Stock
following conversion of such Securities to the extent that receipt of such Common Stock would cause such Holder to exceed the ownership limits contained in the Company’s charter. If any delivery of shares of Common Stock owed to a Holder upon
conversion of Securities is not made, in whole or in part, as a result of the limitations described in this Section 4.01(b), the Company’s obligation to make such delivery will not be extinguished and the Company shall deliver such shares
as promptly as practicable after any such converting Holder gives notice to the Company that such delivery would not result in it being the beneficial or being deemed the constructive owner, by virtue of the applicable constructive ownership
provisions of the Internal Revenue Code of 1986, as amended, of more than 9.8% (in value or in number, whichever is more restrictive) of the outstanding shares of the Company’s Capital Stock. The Trustee shall have no obligation to monitor the
ownership limitation described in this Section 4.01(b). 
 (c) A Security in respect of which a Holder has delivered a Fundamental
Change Purchase Notice exercising such Holder’s right to require the Company to purchase such Security pursuant to Section 3.02 may be converted only if such Fundamental Change Purchase Notice is properly withdrawn in accordance with, and
within the time periods set forth in, Section 3.04. 

Section 4.02    Conversion Procedures. 

(a)    Each Security shall be convertible at the office of the Conversion Agent and, if applicable, in accordance with the
Applicable Procedures of the Depository. 
 (b) To exercise the conversion privilege with respect to a beneficial interest in a Global
Security, the Holder must complete the appropriate instruction form for conversion pursuant to the Depository’s book-entry conversion program, furnish appropriate endorsements and transfer documents if required by the Company or the Conversion
Agent, and pay the funds, if any, required by Section 4.02(f) and any taxes or duties if required pursuant to Section 4.02(g), and the Conversion Agent must be informed of the conversion in accordance with the customary practice of the
Depository. 
 To exercise the conversion privilege with respect to any Physical Securities, the Holder of such Physical Securities shall:

 (1)    complete and manually sign a conversion notice in the form set forth in the Form of Notice of
Conversion (the “Conversion Notice”) or a facsimile of the Conversion Notice; 

  
 21 

 (2)    deliver the Conversion Notice, which is
irrevocable, and the Security to the Conversion Agent; 
 (3)    if required, furnish appropriate
endorsements and transfer documents, 
 (4)    if required, make any payment required under
Section 4.02(f); and 
 (5)    if required, pay all transfer or similar taxes as set forth in
Section 4.02(g). 
 If, upon conversion of a Security, any shares of Common Stock are to be issued to a person other than the Holder of such Security,
the related Conversion Notice shall include such other person’s name and address. 
 If a Security is subject to a Fundamental Change
Purchase Notice, such Security may not be converted unless such Fundamental Change Purchase Notice is withdrawn in accordance with Section 3.04 hereof prior to the relevant Fundamental Change Expiration Time. 

For any Security, the first Business Day on which the Holder of such Security satisfies all of the applicable requirements set forth above
with respect to such Security and on which conversion of such Security is not otherwise prohibited under this Indenture (as determined by the Company) shall be the “Conversion Date” with respect to such Security. 

Each conversion shall be deemed to have been effected as to any such Securities (or portion thereof) surrendered for conversion at the Close
of Business on the applicable Conversion Date, and 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 such
Conversion Date. 
 (c)    Endorsement. Any Securities surrendered for conversion shall, unless shares of Common
Stock issuable on conversion are to be issued in the same name as the registration of such Securities, be duly endorsed by, or be accompanied by instruments of transfer in form satisfactory to the Company duly executed by, the Holder or its duly
authorized attorney. 
 (d)    Physical Securities. If any Securities in a denomination greater than $1,000 shall
be surrendered for partial conversion, the Company shall execute and the Trustee shall authenticate and deliver to the Holder of the Securities so surrendered, without charge, new Securities in authorized denominations in an aggregate principal
amount equal to the unconverted portion of the surrendered Securities. 
 (e)    Global Securities. Upon the
conversion of a beneficial interest in Global Securities, the Security Registrar shall make a notation in its records as to the reduction in the principal amount represented thereby. The Company shall notify the Trustee and the Security Registrar in
writing of any conversions of Securities effected through any Conversion Agent other than the Trustee. 

  
 22 

 (f)    Interest Due Upon Conversion. If a Holder converts a
Security after the Close of Business on a Regular Record Date but prior to the Open of Business on the Interest Payment Date corresponding to such Regular Record Date, such Holder must accompany such Security with an amount of cash equal to the
amount of interest that will payable on such Security on the corresponding Interest Payment Date; provided, however, that a Holder need not make such payment (1) if the Conversion Date follows the Regular Record Date immediately
preceding the Maturity Date; (2) if the Company has specified a Fundamental Change Purchase Date that is after a Regular Record Date and on or prior to the corresponding Interest Payment Date and the Holder converts its Security after the Close
of Business on such Regular Record Date and on or prior to the Open of Business on such Interest Payment Date; or (3) to the extent of any overdue interest, if any overdue interest exists at the time of conversion with respect to such Security.

 (g)    Taxes Due Upon Conversion. If a Holder converts a Security, the Company shall pay any documentary,
stamp or similar issue or transfer tax due on the issue of any shares of the Common Stock upon the conversion, unless the tax is due because the Holder requests that any shares be issued in a name other than the Holder’s name, in which case the
Holder shall pay that tax. 
 (h)    Cash Payments in Lieu of Fractional Shares. No fractional shares of Common
Stock or scrip certificates representing fractional shares shall be issued upon conversion of Securities. If more than one Security shall be surrendered for conversion at one time by the same Holder, the number of full shares that shall be issuable
upon conversion shall be computed on the basis of the aggregate principal amount of the Securities (or specified portions thereof to the extent permitted hereby) so surrendered. If any fractional share of Common Stock would be issuable upon the
conversion of any Security or Securities, the Company shall make a payment therefor in cash to the Holder of Securities equal to the product of (i) such fraction of a share and (ii) the Last Reported Sale Price of the Common Stock on the
relevant Conversion Date (or, if such Conversion Date is not a Trading Day, the immediately preceding Trading Day). 
 
Section 4.03    Settlement Upon Conversion. 
 (a)    Upon conversion of any
Securities, subject to Sections 4.01, 4.02 and this Section 4.03, the Company shall satisfy its obligation upon conversion (the “Conversion Obligation”) by delivery of the shares (and, if applicable, payment of the cash)
described under Section 4.03(b) below. 
 (b)    Upon conversion of Securities, the Company shall deliver, in
respect of each $1,000 principal amount of Securities tendered for conversion in accordance with their terms: 

(1)    a number of shares of Common Stock equal to the product of (a) (i) the aggregate principal
amount of Securities being converted divided by (ii) $1,000, multiplied by (b) the applicable Conversion Rate on the Conversion Date; and 

  
 23 

 (2)    an amount in cash in lieu of any fractional
shares of Common Stock as provided in Section 4.02(h). 
 (c) Delivery of the shares of Common Stock (and, if applicable, payment of
the cash) pursuant to Section 4.03(b) shall be made by the Company on or prior to the second Business Day immediately following the relevant Conversion Date, unless such Conversion Date occurs following the Regular Record Date immediately
preceding the Maturity Date, in which case the Company shall make such delivery (and payment, if applicable) on the Maturity Date, to the Holder of a Security surrendered for conversion, or such Holder’s nominee or nominees, and the Company
shall deliver to such Holder, or such Holder’s nominee or nominees, certificates or a book-entry transfer through the Depository for the number of full shares of Common Stock to which such Holder shall be entitled as part of such Conversion
Obligation. 
 (d)    Settlement of Accrued Interest and Deemed Payment of Principal. If a Holder converts a
Security, the Company will not adjust the Conversion Rate to account for any accrued and unpaid interest on such Security, and the Company’s delivery of shares of Common Stock (and cash in lieu of delivering any fractional shares, if any) into
which a Security is convertible will be deemed to satisfy and discharge in full the Company’s obligation to pay the principal of, and accrued and unpaid interest, if any, on, such Security to, but excluding, the Conversion Date;
provided, however, that if a Holder converts a Security after a Regular Record Date and prior to the Open of Business on the corresponding Interest Payment Date, the Company shall still be obligated to pay the interest due on such
Interest Payment Date to the Holder of such Security on such Regular Record Date (provided the Holder makes the interest payment upon conversion if so required by Section 4.02(f)). 

As a result, except as otherwise provided in the proviso to the immediately preceding sentence, any accrued and unpaid interest with respect
to a converted Security will be deemed to be paid in full rather than cancelled, extinguished or forfeited. In no event will a Holder be entitled to receive any dividend or other distribution with respect to any Common Stock issued on conversion of
such Holder’s Securities if the applicable Conversion Date is after the record date for such dividend or distribution. 

(e)    Notices. Whenever a Conversion Date occurs with respect to a Security, the Conversion Agent shall, as
promptly as possible, and in no event later than the Business Day immediately following such Conversion Date, deliver to the Company and the Trustee, if it is not then the Conversion Agent, notice that a Conversion Date has occurred, which notice
will state such Conversion Date, the principal amount of Securities converted on such Conversion Date and the names of the Holders that converted Securities on such Conversion Date. 

Section 4.04    Adjustment of Conversion Rate. The Conversion Rate will be
adjusted as described in this Section 4.04, except that the Company shall not make any adjustment to the Conversion Rate if Holders participate (other than in the case of (i) a share split or share combination or (ii) a tender or
exchange offer), at the same time and upon the same terms as holders of the Common Stock and solely as a result of holding the Securities, in any of the transactions described below without having to convert their Securities, as if they held a
number of shares of Common Stock equal to the applicable Conversion Rate, multiplied by the principal amount (expressed in thousands) of Securities held by such Holder. 

  
 24 

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

 

							
	                    	 	    CR1 = CR0 x 	 	 OS1
	 	
	 	OS0	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the Record Date (as defined below) 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;
			
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on such Record Date or immediately after the Open of Business on such effective date, as applicable;
			
	 OS0
	 	 	=	 	 	the number of shares of Common Stock outstanding immediately prior to the Close of Business on such Record Date or immediately prior to the Open of Business on such effective date, as applicable, before giving effect to such
dividend, distribution, share split or share combination; and
			
	 OS1
	 	 	=	 	 	the number of shares of Common Stock outstanding immediately after giving effect to such dividend, distribution, share split or share combination, as applicable.

 Any adjustment made pursuant to this Section 4.04(a) shall become effective immediately after the Close
of Business on the Record 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 4.04(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. For the purposes of this Section 4.04(a), “effective date” means the first date on which the 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. 
 (b)    If
the Company issues to all or substantially all holders of the Common Stock any rights, options or warrants entitling them, for a period of not more than forty-five (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 will be increased based on the following formula: 

  
 25 

							
		 	    CR1 = CR0 x 	 	 OS0 + X
	 	
	 	OS0+Y	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the Record Date for such issuance;
			
	 CR1
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on such Record Date;
			
	 OS0
	 	 	=	 	 	the number of shares of Common Stock outstanding immediately prior to the Close of Business on such Record 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 (i) the aggregate price payable to exercise such rights, options or warrants divided by (ii) 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 4.04(b) shall be made successively whenever any such rights, options
or warrants are issued and shall become effective immediately after the Close of Business on the Record Date for such issuance. To the extent that shares of Common Stock are not delivered after the expiration of such rights, options or warrants, the
Conversion Rate shall be readjusted 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 Record Date for such issuance had not occurred. 

For purposes of this Section 4.04(b), in determining whether any rights, options or warrants entitle the holders of the Common Stock to
subscribe for or purchase shares of the Common Stock at a price per share that is 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 of such issuance, and in determining the aggregate offering price of such shares of the 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 of
the Company or rights, options or warrants to acquire its Capital Stock or other securities, to all or substantially all holders of the Common Stock, excluding: 

  
 26 

 (1)    dividends or distributions or issuances as to
which an adjustment was effected pursuant to Section 4.04(a) hereof or Section 4.04(b) hereof; 

(2)    dividends or distributions paid exclusively in cash as to which an adjustment was effected pursuant
to Section 4.04(d) hereof; and 
 (3)    Spin-Offs as to which the provisions set forth in this
Section 4.04(c) will apply; 
 then the Conversion Rate shall be increased based on the following formula: 

 

							
	                    	 	    CR1 = CR0 x 	 	 SP0
	 	
	 	SP0 – FMV	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the Record Date for such distribution;
			
	 CR1
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on such Record 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 shares of the Company’s Capital Stock, evidences the Company’s indebtedness, other assets, or property of the Company or rights, options or warrants
to acquire the Company’s Capital Stock or other securities distributed with respect to each outstanding share of the Common Stock on the Record Date for such distribution.

 Any increase made under the foregoing portion of this Section 4.04(c) above shall become effective
immediately after the Close of Business on the Record Date for such distribution. If such distribution is not so paid or made, the Conversion Rate shall be decreased to be the Conversion Rate that would then be in effect if such distribution had not
been declared. Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater than “SP0” (as defined above), then in lieu of the foregoing increase, each
Holder of a Security 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, the amount and kind of the Company’s Capital Stock, evidences of the Company’s
indebtedness, other assets or property of the Company or rights, options or warrants to acquire the Company’s Capital Stock or other securities that such Holder would have received as if such Holder owned a number of shares of Common Stock
equal to the Conversion Rate in effect on the Record Date for the distribution. 

  
 27 

 With respect to an adjustment pursuant to this Section 4.04(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 of the Company or other business unit of the Company, and such Capital
Stock or similar equity interest is listed or quoted (or will be listed or quoted upon the consummation of the distribution) on a United States national securities exchange (a “Spin-Off”), the
Conversion Rate will be increased based on the following formula: 
  

							
		 	    CR1 = CR0 x 	 	 FMV0 + MP0
	 	
	 	MP0	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the last Trading Day of the Valuation Period (as defined below);
			
	 CR1
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on the last Trading Day of the Valuation Period;
			
	 FMV0
	 	 	=	 	 	the average of the Last Reported Sale Prices of the Capital Stock or similar equity interest distributed to holders of Common Stock applicable to one share of Common Stock (determined by reference to the definition of the Last
Reported Sales Price set forth in Section 1.02 hereof, as if references therein to Common Stock were to such Capital Stock or similar equity interest) over the first ten (10) consecutive Trading Day period after, and including, the Ex-Dividend Date of the Spin-Off (the “Valuation Period”); and
			
	 MP0
	 	 	=	 	 	the average of the Last Reported Sale Prices of Common Stock over the Valuation Period.

 The adjustment to the applicable Conversion Rate under the preceding paragraph of this Section 4.04(c)
will be made immediately after the Close of Business on the last Trading Day of the Valuation Period, provided that, in respect of any conversion of Securities, if the relevant Conversion Date occurs during the Valuation Period, the
references within the portion of this Section 4.04(c) related to “Spin-Offs” to 10 Trading Days will be deemed replaced with such lesser number of Trading Days as have elapsed from, and including, the
Ex-Dividend Date for such Spin-Off to, and including, the relevant Conversion Date in determining the Conversion Rate. 

For purposes of the second adjustment set forth in this Section 4.04(c), (i) the Last Reported Sale Price of any Capital Stock or similar
equity interest shall be calculated in a manner analogous to that used to calculate the Last Reported Sale Price of the Common Stock in the definition of “Last Reported Sale Price” set forth in Section 1.02 hereof, (ii) whether a
day is 

  
 28 

 
a Trading Day for such Capital Stock or similar equity interest shall be determined in a manner analogous to that used to determine whether a day is a Trading Day for the Common Stock, and
(iii) whether a day is a Trading Day to be included in a Valuation Period will be determined based on whether a day is a Trading Day for both the Common Stock and such Capital Stock or similar equity interest. 

Subject to Section 4.04(f), for the purposes of this Section 4.04(c), rights, options or warrants distributed by the Company to all
holders of the Common Stock entitling them to subscribe for or purchase shares of the Company’s Capital Stock (either initially or under certain circumstances), which rights, options or warrants, until the occurrence of a specified event or
events (a “Trigger Event”): (1) are deemed to be transferred with such shares of Common Stock; (2) are not exercisable; and (3) are also issued in respect of future issuances of Common Stock, shall be deemed not to have
been distributed for purposes of this Section 4.04(c), (and no adjustment to the Conversion Rate under this Section 4.04(c) will be required) until the occurrence of the earliest Trigger Event, whereupon such rights, options or warrants
shall be deemed to have been distributed and an appropriate adjustment (if any is required) to the Conversion Rate shall be made under this Section 4.04(c). If any such right, option or warrant, distributed prior to the Issue Date are subject
to events, upon the occurrence of which such rights, options or warrants become exercisable to purchase different securities, evidences of indebtedness or other assets, then the date of the occurrence of any and each such event shall be deemed to be
the date of distribution and record date of such deemed distribution (in which case the original rights, options or warrants shall be deemed to terminate and expire on such date without exercise by any of the holders). In addition, in the event of
any distribution or deemed distribution of rights, options or warrants, or any Trigger Event or other event (of the type described in the preceding sentence) with respect thereto that was counted for purposes of calculating a distribution amount for
which an adjustment to the Conversion Rate under this Section 4.04(c) was made, (1) in the case of any such rights, options or warrants which shall all have been redeemed or purchased without exercise by any holders thereof, upon such
final redemption or purchase (x) the Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued and (y) the Conversion Rate shall then again be readjusted to give effect to such distribution, deemed
distribution or Trigger Event, as the case may be, as though it were a cash distribution, equal to the per share redemption or purchase price received by holders of Common Stock with respect to such rights, options or warrants (assuming each such
holder had retained such rights, options or warrants), made to all holders of Common Stock as of the date of such redemption or purchase, and (2) in the case of such rights, options or warrants which shall have expired or been terminated
without exercise by any holders thereof, the Conversion Rate shall be readjusted as if such rights and warrants had not been issued. 
 For
purposes of Section 4.04(a) hereof, Section 4.04(b) hereof and this Section 4.04(c), if any dividend or distribution to which this Section 4.04(c) applies includes one or both of: 

(1)    a dividend or distribution of shares of Common Stock to which Section 4.04(a) hereof also
applies (the “Clause A Distribution”); or 
 (2)    a dividend or distribution of
rights, options or warrants to which Section 4.04(b) hereof also applies (the “Clause B Distribution”), 

  
 29 

 then (i) such dividend or distribution, other than the Clause A Distribution and the
Clause B Distribution, shall be deemed to be a dividend or distribution to which this Section 4.04(c) applies (the “Clause C Distribution”) and any Conversion Rate adjustment required to be made under this Section 4.04(c)
with respect to such Clause C Distribution shall be made, (ii) the Clause B Distribution, if any, shall be deemed to immediately follow the Clause C Distribution and any Conversion Rate adjustment required by Section 4.04(b) hereof with
respect thereto shall then be made, except that, if determined by the Company, (A) the Record Date of the Clause B Distribution and the Clause A Distribution, if any, shall be deemed to be the Record Date of the Clause C Distribution and
(B) any shares of Common Stock included in the Clause A Distribution or the Clause B Distribution shall not be deemed to be “outstanding immediately prior to the Open of Business on such Record Date” within the meaning of
Section 4.04(b) hereof, and (iii) the Clause A Distribution, if any, shall be deemed to immediately follow the Clause C Distribution or the Clause B Distribution, as the case may be, except that, if determined by the Company, (A) the
Record Date of the Clause A Distribution and the Clause B Distribution, if any, shall be deemed to be the Record Date of the Clause C Distribution, and (B) any shares of Common Stock included in the Clause A distribution shall not be deemed to
be “outstanding immediately prior to the Open of Business on such Record Date or such effective date” within the meaning of Section 4.04(a) hereof. 

(d) If any cash dividend or distribution is made to all or substantially all holders of the Common Stock that, together with all prior
dividends or distributions made to all or substantially all holders of the Common Stock during the calendar quarter in which such dividend or distribution is made (such calendar quarter, the “Dividend Period”), exceeds $0.20 per
share (the “Dividend Threshold Amount”) for such quarter, the Conversion Rate shall be adjusted based on the following formula: 
  

							
		 	    CR1 = CR0 x 	 	 SP0
	 	
	 	SP0 – C	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the record date for such dividend or distribution;
			
	 CR1
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on the record 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 that the Company distributes to all or substantively all holders of the Common Stock (the “Applicable Dividend or Distribution”) in excess of the Dividend Threshold Amount,
provided that for purposes of this definition of “C” only, the

  
 30 

							
		 				 	Dividend Threshold Amount with respect to any date shall be reduced by the aggregate per share cash dividends or distributions that were previously made to all or substantially all holders of the Common Stock during the dividend
period for the Applicable Dividend or Distribution, and provided further that, if the result of such reduction is a negative number, the Dividend Threshold Amount shall be deemed to be zero for such dividend period for the purposes of this
definition of “C” only.

 The Dividend Threshold Amount is subject to adjustment on an inversely proportional basis whenever the
Conversion Rate is adjusted, other than pursuant to this Section 4.04(d). 
 Any increase made under this Section 4.04(d) shall
become effective immediately after the Close of Business on the Record 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 shall receive, for each $1,000 principal amount of Securities it holds, 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 had 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 or any of its Subsidiaries make a payment in respect of a tender or exchange 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 10 consecutive Trading Day period
commencing on, and including the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer (such date, the “Offer Expiration Date”), the Conversion Rate shall be
increased based on the following formula: 
  

							
		 	    CR1 = CR0 x 	 	 AC + (SP1 x OS1)
	 	
	 	OS0 x SP1	 	

 where, 
  

							
	 CR0
	 	 	=	 	 	the Conversion Rate in effect immediately prior to the Close of Business on the 10th Trading Day immediately following, and including, the Trading Day next succeeding the Offer Expiration Date;
			
	 CR1
	 	 	=	 	 	the Conversion Rate in effect immediately after the Close of Business on the 10th Trading Day immediately following, and including, the Trading Day next succeeding the Offer Expiration
Date;

  
 31 

							
			
	 AC
	 	 	=	 	 	the aggregate value of all cash and any other consideration (as determined 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 expiration time of the tender or exchange offer on the Offer Expiration Date (prior to giving effect to the purchase of all shares accepted for purchase or
exchange in such tender or exchange offer);
			
	 OS1
	 	 	=	 	 	the number of shares of Common Stock outstanding immediately after the expiration time of the tender or exchange offer on the Offer Expiration Date (after giving effect to the purchase of all shares 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 10 consecutive Trading Day period commencing on, and including, the Trading Day next succeeding the Offer Expiration Date (such period, the
“Averaging Period”).

 The adjustment to the applicable Conversion Rate under the preceding paragraph of this Section 4.04(e)
will be given effect at the Close of Business on the 10th Trading Day immediately following, and including, the Trading Day next succeeding the Offer Expiration Date. For purposes of determining the applicable Conversion Rate, in respect of any
conversion during the Averaging Period, references within this Section 4.04(e) to “10” or “10th” will be deemed replaced, solely in respect of that conversion, with such lesser number of Trading Days as have elapsed from,
and including, the Trading Day next succeeding the Offer Expiration Date to, and including, the relevant Conversion Date. 

(f)    Poison Pill. Whenever a Holder converts a Security, to the extent that the Company has a rights plan in
effect, the Holder converting such Security will receive, in addition to any shares of Common Stock otherwise received in connection with such conversion, the rights under the rights plan unless, prior to conversion the rights have expired,
terminated or been redeemed or unless the rights have separated from the Common Stock, in which case, and only in such case, the Conversion Rate will be adjusted at the time of separation as if the Company distributed to all or substantially all
holders of the Common Stock, shares of Capital Stock, evidences of indebtedness, assets, property, rights, options or warrants as described in Section 4.04(c) hereof, subject to readjustment in the event of the expiration, termination or
redemption of such rights. 
 (g)    Limitation on Adjustments. Except as stated in this Section 4.04, the
Company will not adjust the Conversion Rate for the issuance of shares of Common Stock or any securities convertible into or exchangeable for shares of Common Stock or the right to purchase shares of the Common Stock or such convertible or
exchangeable securities. If, however, the application of the formulas in Sections 4.04(a) through (e) hereof would result in a decrease in the Conversion Rate, then, except to the extent of any readjustment to the Conversion Rate, no adjustment
to the Conversion Rate will be made (other than as a result of a reverse share split, share combination or readjustment). 

  
 32 

 In addition, notwithstanding anything to the contrary herein, the Conversion Rate will not
be adjusted: 
 (1)    on account of stock repurchases that are not tender offers referred to in
Section 4.04(e) hereof, including structured or derivative transactions, or transactions pursuant to a stock repurchase program approved by the Board of Directors or otherwise; 

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

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

(4)    upon the issuance of any shares of Common Stock pursuant to any option, warrant, right or
exercisable, exchangeable or convertible security not described in the preceding clause (3) and outstanding as of the date the Securities were first issued; 

(5)    for a change in the par value of the Common Stock; 

(6)    for accrued and unpaid interest on the Securities, if any; or 

(7)    for an event otherwise requiring an adjustment under this Indenture if such event is not
consummated. 
 (h)    For purposes of this Section 4.04, 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. 
 (i) For purposes of this Section 4.04,
“Record Date” means, with respect to any dividend, distribution or other transaction or event in which the holders of the Common Stock (or other applicable Security) have the right to receive any cash, securities or other property
or in which the Common Stock (or such other Security) is exchanged for or converted into any combination of cash, securities or other property, the date fixed for determination of holders of the Common Stock (or such other Security) entitled to
receive such cash, securities or other property (whether such date is fixed by the Board of Directors, statute, contract or otherwise). 

(j)    Withholding on Adjustments. If, in connection with any adjustment to the Conversion Rate as set forth in
this Section 4.04 a Holder shall be deemed for U.S. federal tax purposes to have received a distribution, the Company may set off any withholding tax it 

  
 33 

 
reasonably believes it is required to collect with respect to any such deemed distribution against cash payments of interest in accordance with the provisions of Section 2.04 hereof or from
cash and Common Stock, if any, otherwise deliverable to a Holder upon a conversion of Securities in accordance with the provisions of Section 4.03 hereof or repurchase of a Security in accordance with the provisions of Article 3 hereof. 

Section 4.05    Adjustments of Prices and Voluntary Adjustments. 

(a)    Adjustments of Prices. Whenever any provision of this Indenture requires the Company to calculate the Last
Reported Sale Prices or any function thereof over a span of multiple days (including an observation period and the Stock Price for purposes of a Make-Whole Fundamental Change), the Company shall make appropriate adjustments 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 Effective Date, Ex-Dividend Date, Record Date or Offer Expiration Date of the
event occurs, at any time during the period when such Last Reported Sale Prices or function thereof is to be calculated. 

(b)    Voluntary Adjustments. To the extent permitted by applicable law and the rules of the New York Stock
Exchange or any other securities exchange or market on which the Common Stock is then listed, the Company is permitted to increase the Conversion Rate of the Securities 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. The Company may also (but is not required to) increase the Conversion Rate to avoid or diminish income tax to holders of Common Stock or rights to purchase shares
of Common Stock in connection with a dividend or distribution of shares (or rights to acquire shares) or similar event. 
 
Section 4.06    Increase in Conversion Rate Upon Conversion in Connection with a Make-Whole Fundamental Change. 

(a)    Increase in the Conversion Rate. If a Make-Whole Fundamental Change occurs and a Holder elects to convert
its Securities in connection with such Make-Whole Fundamental Change, the Company shall, under certain circumstances, increase the Conversion Rate for the Securities so surrendered for conversion by a number of additional shares of Common Stock (the
“Additional Shares”), as described in this Section 4.06. A conversion of Securities shall be deemed for these purposes to be “in connection with” a Make-Whole Fundamental Change if the relevant Conversion Notice is
received by the Conversion Agent during the period from, and including, the Effective Date of the Make-Whole Fundamental Change up to, and including, the Close of Business on the Business Day immediately prior to the related Fundamental Change
Purchase Date or, if such Make-Whole Fundamental Change is not a Fundamental Change, the 35th Business Day immediately following the Effective Date of such Make-Whole Fundamental Change. 

(b)    Determining the Number of Additional Shares. The number of Additional Shares, if any, by which the
Conversion Rate will be increased for a Holder that converts its Securities in connection with a Make-Whole Fundamental Change shall be determined by reference to the table attached as Schedule A hereto, based on the date on which the
Make-Whole Fundamental Change occurs or becomes effective (the “Effective Date”) and the price 

  
 34 

 
(the “Stock Price”) paid (or deemed paid) per share of the Common Stock in the Make-Whole Fundamental Change. If the holders of the Common Stock receive only cash in a Make-Whole
Fundamental Change described in clause (2) of the definition of Fundamental Change, the Stock Price will be the cash amount paid per share. Otherwise, the Stock Price will be the average of the Last Reported Sale Prices of the Common Stock over
the ten consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Effective Date of the relevant Make-Whole Fundamental Change. 

(c)    Interpolation and Limits. The exact Stock Prices and Effective Dates may not be set forth in the table in
Schedule A, in which case: 
 (1)    If the Stock Price is between two Stock Prices in the table
or the Effective Date is between two Effective Dates in the table, 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-day year. 

(2)    If the Stock Price is equal to, or greater than, $11.00 per share (subject to adjustment in the same
manner as the Stock Prices set forth in the column headings of the table in Schedule A pursuant to Section 4.06(c)(4) hereof), the Conversion Rate shall not be increased. 

(3)    If the Stock Price is less than $7.23 per share (subject to adjustments in the same manner as the
Stock Prices set forth in the column headings of the table in Schedule A pursuant to Section 4.06(c)(4) hereof), the Conversion Rate shall not be increased. 

Notwithstanding the foregoing, in no event will the Conversion Rate be increased on account of a Make-Whole Fundamental Change to exceed
138.3125 shares of Common Stock per $1,000 principal amount of Securities, subject to adjustments in the same manner as the Conversion Rate is required to be adjusted as set forth in Section 4.04 hereof. 

(4)    The Stock Prices set forth in the column headings of the table in Schedule A hereto shall be
adjusted as of any date on which the Conversion Rate of the Securities is otherwise required to be 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 such table
shall be adjusted in the same manner and at the same time as the Conversion Rate is required to be adjusted as set forth in Section 4.04. 

(d)    Notices. The Company shall notify the Trustee and the Holders of the Effective Date of any Make-Whole
Fundamental Change announcing such Effective Date no later than five Business Days after such Effective Date. Such notice shall be sent by first class mail or, in the case of any Global Securities, in accordance with the procedures of the Depository
for providing notices. Simultaneously with providing such notice, the Company shall publish this 

  
 35 

 
information in a newspaper of general circulation in The City of New York or publish the information on the Company’s website or through such other public medium as the Company may use at
that time. 
 Section 4.07    Effect of Recapitalization, Reclassification,
Consolidation, Merger or Sale. 
 (a)    Merger Events. In the case of: 

(1)    any recapitalization, reclassification or change of the Common Stock (other than a change in par
value, or from par value to no par value, or from no par value to par value, or as a result of a split, subdivision or combination for which an adjustment was made pursuant to Section 4.04(a) hereof); 

(2)    any consolidation, merger or combination involving the Company; 

(3)    any sale, lease or other transfer to a third party of the consolidated assets of the Company and its
Subsidiaries substantially as an entirety; or 
 (4)    any statutory share exchange; 

and, 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) (any such event, a “Merger Event,” any such stock, other securities, other property or assets, “Reference Property,” and the amount of kind of Reference Property that a
holder of one share of Common Stock (i) is entitled to receive in the applicable Merger Event or (ii) if as a result of the applicable Merger Event, each share of Common Stock is converted into the right to receive more than a single type
of consideration (determined based in part upon any form of stockholder election), the per-share of Common Stock weighted average of the types and amounts of Reference Property received by the holders of
Common Stock that affirmatively make such an election, a “Unit of Reference Property”) then, at and after the effective time of such Merger Event, the right to convert each $1,000 principal amount of Securities into a number of
shares of the Common Stock equal to the applicable Conversion Rate will, without the consent of the Holders, be changed into a right to convert each $1,000 principal amount of Securities into a number of Units of Reference Property equal to the
applicable Conversion Rate and, prior to or at the effective time of such Merger Event, the Company or the successor or purchasing Person, as the case may be, shall execute with the Trustee a supplemental indenture (which shall comply with the Trust
Indenture Act as in force at the date of execution of such supplemental indenture) providing for such change in the right to convert each $1,000 principal amount of Securities. With respect to any such Reference Property, the Last Reported Sale
Price will, to the extent reasonably possible, be calculated based on the value of a Unit of Reference Property and the definitions of Trading Day shall be determined by reference to the components of a Unit of Reference Property. 

If the Merger 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) as contemplated by the preceding paragraph such that a Unit of 

  
 36 

 
Reference Property is comprised of the per-share of Common Stock weighted average of the types and amounts of consideration actually received by the
holders of the Common Stock in the Merger Event. The Company shall notify Holders of such weighted average as soon as practicable after such determination is made. 

The Company shall not become a party to any Merger Event unless its terms are consistent with this Section 4.07. Such supplemental
indenture described in the second immediately preceding paragraph shall provide for adjustments which shall be as nearly equivalent to the adjustments provided for in this Article 4 in the judgment of the Board of Directors or the board of directors
of the successor Person. If, in the case of any such Merger Event, the Reference Property receivable thereupon by a holder of Common Stock includes shares of stock, securities or other property or assets (including cash or any combination thereof)
of a Person other than the successor or purchasing Person, as the case may be, in such Merger Event, then such supplemental indenture shall also be executed by such other Person and shall contain such additional provisions to protect the interests
of the Holders of the Securities as the Board of Directors shall reasonably consider necessary. 
 (b)    Notice of
Supplemental Indentures. The Company shall cause notice of the execution of such supplemental indenture to be mailed to each Holder, at the address of such Holder as it appears on the register of the Securities maintained by the Security
Registrar, within 20 days after execution thereof. Failure to deliver such notice shall not affect the legality or validity of such supplemental indenture. The above provisions of this Section 4.07 shall similarly apply to successive Merger
Events and the provisions of this Section 4.07 and Article Nine of the Base Indenture (as modified by Article 8 of this Supplemental Indenture) shall apply to any such successive Merger Events. 

Section 4.08    Stock Issued Upon Conversion. 

(a)    Reservation of Shares. To the extent necessary to satisfy its obligations under this Indenture, prior to
issuing any shares of Common Stock, the Company shall reserve out of its authorized but unissued shares of Common Stock a sufficient number of shares of Common Stock to permit the conversion of the Securities. 

(b)    Certain other Covenants. The Company covenants that all shares of Common Stock that may be issued upon
conversion of Securities shall be newly issued shares or treasury shares, shall be duly authorized, validly issued, fully paid and non-assessable and shall be free from preemptive rights and free from any tax,
lien or charge (other than those created by the Holder or due to a change in registered owner). 
 (c)    Stock
Transfer Agent. Computershare is, as of the date of the this Supplemental Indenture, the “Stock Transfer Agent” for the Common Stock and the Company shall notify the Trustee if the Stock Transfer Agent for the Common Stock is
changed. The Company and the Trustee (as Conversion Agent) agree to cooperate with the Stock Transfer Agent for the Common Stock in connection with any conversions of the Securities. 

  
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 The Company shall list or cause to have quoted any shares of Common Stock to be issued upon
conversion of Securities on each national securities exchange or over-the-counter or other domestic market on which the Common Stock is then listed or quoted. 

Section 4.09    Responsibility of Trustee. The Trustee and any Conversion
Agent shall not at any time be under any duty or responsibility to any Holder of Securities to determine or calculate the Conversion Rate (or any adjustments thereto), to determine whether any facts exist which may require any adjustment of the
Conversion Rate, or to confirm the accuracy of any such adjustment when made or the appropriateness of 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 other securities or property that may at any time be issued or delivered upon the conversion of any Securities; and
the Trustee and the 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 Securities for the purpose of conversion or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article 4. The rights,
privileges, protections, immunities and benefits given to the Trustee, including without limitation its right to be compensated, reimbursed, and indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities
hereunder, including its capacity as Conversion Agent. 
 Section 4.10    Notice
to Holders. 
 (a)    Notice to Holders Prior to Certain Actions. The Company shall deliver notices of the
events specified below at the times specified below and containing the information specified below unless, in each case, (i) pursuant to this Indenture, the Company is already required to deliver notice of such event containing at least the
information specified below at an earlier time or, (ii) the Company, at the time it is required to deliver a notice, does not have knowledge of all of the information required to be included in such notice, in which case, the Company shall
(A) deliver notice at such time containing only the information that it has knowledge of at such time (if it has knowledge of any such information at such time), and (B) promptly upon obtaining knowledge of any such information not already
included in a notice delivered by the Company, deliver notice to each Holder containing such information. In each case, the failure by the Company to give such notice, or any defect therein, shall not affect the legality or validity of such event.
Any notices sent to Holders shall also be sent to the Trustee. 
 (b)    Issuances, Distributions, and Dividends and
Distributions. If the Company (A) announces any issuance of any rights, options or warrants that would require an adjustment in the Conversion Rate pursuant to Section 4.04(b) hereof; (B) authorizes any distribution that would
require an adjustment in the Conversion Rate pursuant to Section 4.04(c) hereof (including any separation of rights from the Common Stock described in Section 4.04(g) hereof); or (C) announces any dividend or distribution that would
require an adjustment in the Conversion Rate pursuant to Section 4.04(d) hereof, then the Company shall deliver to the Holders, as promptly as possible, but in any event at least 15 calendar days prior to the applicable record date, notice
describing such issuance, distribution, dividend or distribution, as 

  
 38 

 
the case may be, and stating the expected Ex-Dividend Date and record date for such issuance, distribution, dividend or distribution, as the case may be.
In addition, the Company shall deliver to the Holders notice if the consideration included in such issuance, distribution, dividend or distribution, or the Ex-Dividend Date or record date of such issuance,
distribution, dividend or distribution, as the case may be, changes. 
 (c)    Voluntary Increases. If the
Company increases the Conversion Rate pursuant to Section 4.05(b), the Company shall deliver notice to the Holders at least 15 calendar days prior to the date on which such increase shall become effective, which notice shall state the date on
which such increased shall become effective and the amount by which the Conversion Rate will be increased. 

(d)    Dissolutions, Liquidations and Winding-Ups. If there is a voluntary
or involuntary dissolution, liquidation or winding-up of the Company, the Company shall deliver notice to the Holders at promptly as possible, but in any event at least 15 calendar days prior to the earlier of
(i) the date on which such dissolution, liquidation or winding-up, as the case may be, is expected to become effective or occur, and (ii) the date as of which it is expected that holders of Common
Stock of record shall be entitled to exchange their Common Stock for securities or other property deliverable upon such dissolution, liquidation or winding-up, as the case may be, which notice shall state the
expected effective date and record date for such event, as applicable, and the amount and kind of property that a holder of one share of the Common Stock is expected to be entitled, or may elect, to receive in such event. The Company shall deliver
an additional notice to Holders, as promptly as practicable, whenever the expected effective date or record date, as applicable, or the amount and kind of property that a holder of one share of the Common Stock is expect to be entitled to receive in
such event, changes. 
 (e)    Notices After Certain Actions and Events. Whenever an adjustment to the Conversion
Rate becomes effective pursuant to Sections 4.04, 4.05 or 4.06 hereof, the Company shall (i) file with the Trustee an Officers’ Certificate stating that such adjustment has become effective, the Conversion Rate, and the manner in which the
adjustment was computed and (ii) deliver notice to the Holder’s stating that such adjustment has become effective and the Conversion Rate or conversion privilege as adjusted. Failure to give any such notice, or any defect therein, shall
not affect the validity of any such adjustment. 
 ARTICLE 5 

PARTICULAR COVENANTS OF THE COMPANY 

Section 5.01    Payment of Principal, Interest and Fundamental Change Purchase
Price. This Section 5.01 shall replace Section 1001 of the Base Indenture in its entirety. The Company covenants and agrees that it shall cause to be paid the principal of (including the Fundamental Change Purchase Price), and accrued
and unpaid interest, if any, on each of the Securities at the places, at the respective times and in the manner provided herein and in the Securities. 

Section 5.02    Maintenance of Office or Agency. This Section 5.02
replaces Section 1002 of the Base Indenture in its entirety and references in the Base Indenture to Section 1002 of the Base Indenture shall be deemed replaced with references to this Section 5.02. The

  
 39 

 
Company shall maintain an office of the Paying Agent, an office of the Security Registrar and an office or agency where Securities may be surrendered for conversion (“Conversion
Agent”). The Company shall 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 or surrenders may be made or served at the Corporate Trust Office; provided, however, the Trustee shall not be deemed an agent of the Company for service of process. 

The Company may also from time to time designate coregistrars one or more other offices or agencies where the Securities 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 Company of its obligation to maintain an office or agency for such
purposes. The Company shall 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. 
 The Company hereby initially designates the Trustee as the
Paying Agent, Security Registrar, Custodian, Conversion Agent and the Corporate Trust Office, which shall be in the continental United States, shall be considered as one such office or agency of the Company for each of the aforesaid purposes. 

With respect to any Global Security, the Corporate Trust Office of the Trustee or any Paying Agent shall be the Place of Payment where such
Global Security may be presented or surrendered for payment or conversion or for registration of transfer or exchange, or where successor Securities may be delivered in exchange therefor; provided, however, that any such payment,
conversion, presentation, surrender or delivery effected pursuant to the Applicable Procedures of the Depository for such Global Security shall be deemed to have been effected at the Place of Payment for such Global Security in accordance with the
provisions of this Indenture. 
 Section 5.03    Appointments to Fill Vacancies
in Trustee’s Office. The Company, whenever necessary to avoid or fill a vacancy in the office of Trustee, shall appoint, in the manner provided in Section 608 of the Base Indenture, a Trustee, so that there shall at all
times be a Trustee hereunder. 
 Section 5.04    Provisions as to Paying
Agent. This Section 5.04 shall replace Section 1003 of the Base Indenture in its entirety and references in the Base Indenture to Section 1003 of the Base Indenture shall be deemed replace with references to this
Section 5.04. 
 (a)    If the Company shall appoint a Paying Agent other than the Trustee, the Company shall 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 5.04: 

(1)    that it shall hold all sums held by it as such agent for the payment of the principal of, accrued
and unpaid interest, if any, on, and the Fundamental Change Purchase Price for, the Securities in trust for the benefit of the Holders; 

  
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 (2)    that it shall give the Trustee prompt notice of
any failure by the Company to make any payment of the principal of, accrued and unpaid interest, if any, on, or the Fundamental Change Purchase Price for, the Securities when the same shall be due and payable; and 

(3)    that at any time during the continuance of an Event of Default, upon request of the Trustee, it
shall forthwith pay to the Trustee all sums so held in trust. 
 The Company shall, on or before each due date of the principal of, accrued
and unpaid interest, if any, on, and Fundamental Change Purchase Price for, the Securities, deposit with the Paying Agent a sum sufficient to pay such principal, accrued and unpaid interest, or Fundamental Change Purchase Price, as the case may be,
and (unless such Paying Agent is the Trustee) the Company shall promptly notify the Trustee 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 10:00
a.m., New York City time, on such date. 
 (b)    If the Company shall act as its own Paying Agent, it shall, on or
before each due date of the principal of, accrued and unpaid interest, if any, on, or Fundamental Change Purchase Price for, the Securities, set aside, segregate and hold in trust for the benefit of the holders of the Securities a sum sufficient to
pay such principal, accrued and unpaid interest, if any, on or Fundamental Change Purchase Price, as the case may be, so becoming due and shall 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 of, accrued and unpaid interest on, or Fundamental Change Purchase Price for, the Securities when the same shall become due and payable. 

(c)    Anything in this Section 5.04 to the contrary notwithstanding, but subject to Article 7, the Company may, at
any time, for the purpose of obtaining a satisfaction and discharge of this Indenture, or for any other reason, pay or cause to be paid to the Trustee all sums held in trust by the Company or any Paying Agent hereunder as required by this
Section 5.04, such sums to be held by the Trustee upon the trusts herein contained and upon such payment by the Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from all further liability with
respect to such sums. 
 Section 5.05    Reports. 

(a)    The Company shall deliver to the Trustee, within 15 days after it is required to file the same with the Commission,
copies of the quarterly and annual reports and of the information, documents and other reports, if any, that it is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, and to otherwise comply with
Section 314(a) of the Trust Indenture Act. Any such report, information or document that the Company files with the Commission through the EDGAR system (or any successor thereto) will be deemed to be delivered to the Trustee for the purposes of
this Section 5.05(a) at the time of such filing through the EDGAR system (or such successor thereto). 

  
 41 

 (b) Delivery of any such reports, information and documents to the Trustee will be for
informational purposes only, and the Trustee’s receipt of such reports, information and documents will 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 rely exclusively on Officers’ Certificates). 

Section 5.06    Statements as to Defaults. The Company shall deliver to the
Trustee, as soon as possible, and in any event within thirty days after the Company becomes aware of the occurrence of any Default or Event of Default, written notice and an Officers’ Certificate setting forth the details of such Default or
Event of Default, its status and the action that the Company proposes to take with respect thereto. Such Officers’ Certificate shall also comply with any additional requirements set forth in Section 102 of the Base Indenture. 

Section 5.07    Supplementary Interest Notice. If Supplementary Interest is
payable by the Company pursuant to Section 6.04 hereof, the Company shall deliver to the Trustee an Officers’ Certificate to that effect stating (a) the amount of such Supplementary Interest (in aggregate and per $1,000 principal
amount of Securities) and (b) the date on which such 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
Supplementary Interest is payable. If the Company has paid Supplementary Interest directly to the Persons entitled to them, the Company shall deliver to the Trustee an Officers’ Certificate setting forth the particulars of such payment. 

Section 5.08    Covenant to Take Certain Actions. Before taking any action
which would cause an adjustment to the Conversion Rate such that the Conversion Price per share of Common Stock issuable upon conversion of the Securities would be less than the par value of the Common Stock, the Company shall take all corporate
actions that may, in the opinion of its counsel, be necessary so it may validly and legally issue shares of Common Stock at such adjusted Conversion Rate. 

ARTICLE 6 

REMEDIES 
 
Section 6.01    Amendments to the Base Indenture. 
 (a)    The Holders shall not
have the benefit of Article Five of the Base Indenture and, with respect to the Securities, this Article 6 supersedes Article Five of the Base Indenture in its entirety. 

(b)    All references to Section 602 in the Base Indenture are, with respect to the Securities, hereby deemed
replaced by references to Section 6.18 of this Supplemental Indenture. 
 (c)    The reference to Sections 501(8),
501(9) and 501(10) in Section 606 of the Base Indenture is, with respect to the Securities, hereby deemed replaced by a reference to Section 6.02(h) and Section 6.02(i) of this Supplemental Indenture insofar as Section 6.02(h)
and Section 6.02(i) relate to the Company. 

  
 42 

 (d)    Each reference in the Base Indenture to Section 502 is, with
respect to the Securities, hereby deemed replaced by a reference to Section 6.03 hereof. 

Section 6.02    Events of Default. Each of the following events (and only the
following events) shall be an “Event of Default” wherever used with respect to the Securities: 

(a)    default in any payment of interest on any Security when due and payable, and the default continues for a period of
thirty days; 
 (b)    default in the payment of the principal of any Security (including the Fundamental Change
Purchase Price) 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 obligations under Article 4 hereof to convert the Securities in accordance with Article 4 hereof
upon exercise of a Holder’s conversion right and that failure continues for three (3) Business Days; 

(d)    failure by the Company to comply with its obligations under Article 9 hereof; 

(e)    failure by the Company to issue a notice in accordance with the provisions of Section 3.02(b) hereof when due;

 (f)    failure by the Company for 60 days after written notice from the Trustee or the Holders of at least 25% in
principal amount of the Securities then Outstanding (a copy of which notice, if given by Holders, must also be given to the Trustee) has been received by the Company to comply with any of its other agreements contained in the Securities or this
Indenture (other than a covenant or warranty a default in whose performance or whose breach is elsewhere in this Section 6.02 specifically provided for or that is not applicable to the Securities), which notice will state that it is a
“Notice of Default” hereunder; 
 (g)    default by the Company or its Subsidiaries with respect to any
mortgage, agreement or other instrument under which there may be outstanding, or by which there may be secured or evidenced, any indebtedness for money borrowed in excess of $100,000,000 (or its foreign currency equivalent) in the aggregate of the
Company and/or any such Subsidiary (other than Non-recourse Debt of any Significant Subsidiary, whether such indebtedness now exists or shall hereafter be created (i) resulting in such indebtedness
becoming or being declared due and payable or (ii) constituting a failure to pay the principal or interest of any such debt when due and payable at its stated maturity, upon required repurchase, upon declaration of acceleration or otherwise;

 (h) the Company or any Significant Subsidiary of the Company shall commence a voluntary case or other proceeding seeking the 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 of the Company or any substantial part of the Company’s or such Significant Subsidiary of the Company’s property, or shall consent to any such relief or to
the 

  
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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 
 (i)    an involuntary case or other proceeding shall be
commenced against the Company or any Significant Subsidiary of the Company seeking liquidation, reorganization or other relief with respect to the Company or such Significant Subsidiary of the Company 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 of the Company or any substantial part of its property, and
such involuntary case or other proceeding shall remain undismissed and unstayed for a period of thirty consecutive days; or 

(j)    a final judgment or judgments for the payment of $100,000,000 (or its foreign currency equivalent) or more
(excluding any amounts covered by insurance) in the aggregate rendered against the Company or any of its Subsidiaries entered by a court of competent jurisdiction, 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. 

Section 6.03    Acceleration; Rescission and Annulment. If 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 6.02(h) or Section 6.02(i)), unless the principal of all of the Securities
shall have already become due and payable, either the Trustee or the holders of at least 25% in aggregate principal amount of the Securities then Outstanding, by notice in writing to the Company (and to the Trustee if given by the Holders), may
declare 100% of the principal of, and accrued and unpaid interest, if any, on all the Securities to be due and payable immediately. If an Event of Default specified in Section 6.02(h) or Section 6.02(i) occurs and is continuing, the
principal of, and accrued and unpaid interest, if any, on all Securities shall be immediately due and payable. 
 
Section 6.04    Supplementary Interest. 
 (a) Notwithstanding any provisions of the Indenture to the
contrary, if the Company so elects, the sole remedy for an Event of Default relating to (i) the Company’s failure to file with the Trustee pursuant to Section 314(a)(1) of the Trust Indenture Act any documents or reports that it is
required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, or (ii) the Company’s failure to comply with Section 5.05(a) hereof (a “Reporting Event of Default”), will consist
exclusively of the right to receive additional interest on the Securities (the “Supplementary Interest”) at a rate per year equal to 0.50% per annum of the Outstanding principal amount of the Securities for each day during such 180-day period as long as such Event of Default is continuing (subject to Section 6.04(b)). 

  
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 If the Company so elects, such Supplementary Interest will be payable in the same manner and
on the same dates as the stated interest payable on the Securities. On the 181st day after such Event of Default (if the Reporting Event of Default is not cured or waived prior to such 181st day), the Securities will be subject to acceleration
pursuant to Section 6.03. The provisions of this Section 6.04 will not affect the rights of Holders of Securities in the event of the occurrence of any Event of Default that is not a Reporting Event of Default. In the event the Company
does not elect to pay the Supplementary Interest following an Reporting Event of Default in accordance with this Section 6.04(a) or the Company elected to make such payment but does not pay the Supplementary Interest when due, the Securities
will be immediately subject to acceleration as provided in Section 6.03. 
 (b) In order to elect to pay the Supplementary Interest as
the sole remedy during the first 180 days after the occurrence of a Reporting Event of Default, the Company must notify all Holders of Securities, the Trustee and the Paying Agent of such election prior to the beginning of such 180-day period. Upon the Company’s failure to timely give such notice, the Securities will be immediately subject to acceleration as provided in Section 6.03. 

Section 6.05    Waiver of Past Defaults. The Holders of a majority in
aggregate principal amount of the Securities then Outstanding, by written notice to the Company and to the Trustee, may waive (including by way of consents obtained in connection with a repurchase of, or tender or exchange offer for, the Securities)
all past Defaults or Events of Default with respect to the Securities (other than a Default or an Event of Default resulting from nonpayment of principal or interest, a failure to deliver consideration due upon conversion or any other provisions
that requires the consent of each affected Holder to amend) and rescind any such acceleration with respect to the Securities and its consequences if (i) rescission would not conflict with any judgment or decree of a court of competent
jurisdiction and (ii) all existing Events of Default, other than the nonpayment of the principal of, and interest on, the Securities that have become due solely by such declaration of acceleration have been cured or waived. 

Section 6.06    Control by Majority. At any time, the Holders of a majority of
the aggregate principal amount of the then Outstanding Securities may direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or for exercising any trust or power conferred on the Trustee. However, the
Trustee may refuse to follow any direction that conflicts with law or this Indenture or that the Trustee determines to be unduly prejudicial to the rights of a Holder or to the Trustee, or that would potentially involve the Trustee in personal
liability. Prior to taking any action hereunder at the direction of the Holders, the Trustee will be entitled to indemnification and/or security satisfactory to it against all losses and expenses caused by taking or not taking such action. 

Section 6.07    Limitation on Suits. Subject to Section 6.08 hereof, no
Holder may pursue a remedy with respect to this Indenture or the Securities unless: 
 (a)    such Holder has previously
delivered to the Trustee written notice that an Event of Default is continuing; 

  
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 (b)    the Holders of at least 25% of the aggregate principal amount of
the then Outstanding Securities made a written request to the Trustee to pursue a remedy with respect to such Event of Default; 

(c)    such Holder or Holders have offered and, if requested, provided to the Trustee indemnity and/or security reasonably
satisfactory to the Trustee against any loss, liability or other expense of compliance with such written request; 

(d)    the Trustee has not complied with such request within 60 days after receipt of such written request and offer of
indemnity or security; and 
 (e)    during such 60-day period, the Holders of a
majority of the aggregate principal amount of the then Outstanding Securities did not deliver to the Trustee a direction inconsistent with such request. 

Section 6.08    Rights of Holders to Receive Payment and to Convert.
Notwithstanding anything to the contrary elsewhere in this Indenture, the right of any Holder to receive payment of the principal of, interest on, Fundamental Change Purchase Price for, its Securities, on or after the respective due date, and to
convert its Securities and receive payment or delivery of the consideration due with respect to such Securities in accordance with Article 4 hereof, or to bring suit for the enforcement of any such payment or conversion rights, will not be impaired
or affected without the consent of such Holder and will not be subject to the requirements of Section 
6.07 hereof. 
 Section 6.09    Collection of Indebtedness; Suit for Enforcement
by Trustee. If an Event of Default specified in Section 6.02(a), 6.02(b) or 6.02(c) hereof occurs and is continuing, the Trustee is authorized to recover judgment in its own name and as trustee of an express trust against the Company for
the whole amount of principal of, interest on, Fundamental Change Purchase Price for and the consideration due upon the conversion of, the Securities, as the case may be, and such further amount as is sufficient to cover the costs and expenses of
collection, including the reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, as well as any other amounts that may be due under Section 606 of the Base Indenture. 

Section 6.10    Trustee May Enforce Claims Without Possession of Securities.
All rights of action and claims under this Indenture or the Securities may be prosecuted and enforced by the Trustee without the possession of any of the Securities or the production thereof in any proceeding relating thereto, and any such
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 in respect of which such judgment has been recovered. 
 
Section 6.11    Trustee May File Proofs of Claim. The Trustee is authorized to file such proofs of claim and other papers or documents as may be necessary or advisable to have the claims of the Trustee and the
Holders allowed in any judicial proceedings relative to the Company, its creditors or its property and, unless prohibited by law or applicable regulations, 

  
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will be entitled to collect, receive and distribute any money or other property payable or deliverable on any such claims, and any custodian in any such judicial proceeding is hereby authorized
by each Holder to make such payments to the Trustee, and, in the event that the Trustee consents to the making of such payments directly to the Holders, to pay to the Trustee any amount due to it for the reasonable compensation, expenses,
disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under the Base Indenture (including Section 606 of the Base Indenture) and this Supplemental Indenture. To the extent that the payment of
any such compensation, expenses, disbursements and advances of the Trustee, its agents and counsel, and any other amounts due the Trustee under Section 606 of the Base Indenture out of the estate in any such proceeding, will be denied for any
reason, payment of the same will be secured by a lien on, and is paid out of, any and all distributions, dividends, money, securities and other properties that the Holders may be entitled to receive in such proceeding, whether in liquidation or
under any plan of reorganization or arrangement or otherwise. Nothing herein contained will be deemed to authorize the Trustee to authorize or consent to, or to accept or to adopt on behalf of any Holder, any plan of reorganization, arrangement,
adjustment or composition affecting the Securities or the rights of any Holder, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding. 

Section 6.12    Restoration of Rights and Remedies. If the Trustee or any
Holder has instituted any proceeding to enforce any right or remedy under this Indenture and such proceeding has been discontinued or abandoned for any reason, or has been determined adversely to the Trustee or to such Holder, then and in every such
case, subject to any determination in such proceeding, the Company, the Trustee and the Holders shall be restored severally and respectively to their former positions hereunder and thereafter all rights and remedies of the Trustee and the Holders
shall continue as though no such proceeding had been instituted. 

Section 6.13    Rights and Remedies Cumulative. Except as otherwise provided
with respect to the replacement or payment of mutilated, destroyed, lost or stolen Securities in Section 306 of the Base Indenture, no right or remedy herein conferred upon or reserved to the Trustee or to the Holders is intended to be
exclusive of any other right or remedy, and every right and remedy shall, to the extent permitted by law, be cumulative and in addition to every other right and remedy given hereunder or now or hereafter existing at law or in equity or otherwise.
The assertion or employment of any right or remedy hereunder, or otherwise, shall not prevent the concurrent assertion or employment of any other appropriate right or remedy. 

Section 6.14    Delay or Omission Not a Waiver. No delay or omission of the
Trustee or of any Holder to exercise any right or remedy accruing upon any Event of Default shall impair any such right or remedy or constitute a waiver of any such Event of Default or an acquiescence therein. Every right and remedy given by this
Article 6 or by law to the Trustee or to the Holders may be exercised from time to time and as often as may be deemed expedient by the Trustee (subject to the limitations contained in this Indenture) or by the Holders, as the case may be. 

Section 6.15    Priorities. If the Trustee collects any money pursuant to this
Article 6, it will pay out the money in the following order: 

  
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 FIRST: to the Trustee, its agents and attorneys for amounts due under the Base Indenture and
this Supplemental Indenture, including payment of all compensation, expenses and liabilities incurred, and all advances made, by the Trustee and the costs and expenses of collection; 

SECOND: to the Holders, for any amounts due and unpaid on the principal of, accrued and unpaid interest on, Fundamental Change Purchase Price
for, and any cash due upon conversion of, any Security, without preference or priority of any kind, according to such amounts due and payable on all of the Securities; and 

THIRD: the balance, if any, to the Company or to such other party as a court of competent jurisdiction directs. 

The Trustee may fix a record date and payment date for any payment to the Holders pursuant to this Section 6.15. If the Trustee so fixes
a record date and a payment date, at least 15 days prior to such record date, the Company shall deliver to each Holder and the Trustee a written notice, which notice will state such record date, such payment date and the amount of such payment. 

Section 6.16    Undertaking for Costs. All parties to this Indenture agree,
and each Holder, by such Holder’s acceptance of a Security, 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, 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, however, that the provisions of this Section 6.16 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 aggregate principal amount of the Securities then Outstanding, or to any suit instituted by any
Holder for the enforcement of the payment of the principal of, accrued and unpaid interest, if any, on, or Fundamental Change Purchase Price for, any Security on or after the due date expressed or provided for in this Indenture or to any suit for
the enforcement of the right to convert any Security in accordance with the provisions of Article 4 hereof. 

Section 6.17    Waiver of Stay, Extension and Usury Laws. The Company
covenants that, to the extent that it may lawfully do so, it will 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 wherever enacted, now or at any time
hereafter in force, that may affect the covenants or the performance of this Indenture; and the Company, to the extent that it may lawfully do so, hereby expressly waives all benefit or advantage of any such law, and covenants that it will not, by
resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will instead suffer and permit the execution of every such power as though no such law has been enacted. 

Section 6.18    Notices from the Trustee. Notwithstanding anything to the
contrary in the Base Indenture, including Section 602 of the Base Indenture (which Section 602 will not apply to the Securities), whenever a Default occurs and is continuing and a Responsible Officer of the

  
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Trustee has received written notice of such Default, the Trustee must deliver notice of such Default to the Holders within 90 days after the date on which such Default first occurred or after a
Responsible Officer of the Trustee obtains knowledge of it. Except in the case of a Default in the payment of the principal of, interest on, or Fundamental Change Purchase Price for, any Security or of a Default in the payment or delivery, as the
case may be, of the consideration due upon conversion of a Security, the Trustee will not be liable in connection with withholding such notice if the Trustee in good faith determines that the withholding of such notice is in the interests of the
Holders. 
 ARTICLE 7 

SATISFACTION AND DISCHARGE 

Section 7.01    Inapplicability of Provisions of Base Indenture; Satisfaction and
Discharge of the Indenture. Article Four of the Base Indenture shall not apply with respect to the Securities. The provisions set forth in this Article 7 shall, with respect to the Securities, supersede in their entirety Article Four of the Base
Indenture. The third paragraph of Section 306 of the Base Indenture shall not apply with respect to the Securities. 
 When
(a) the Company shall deliver to the Security Registrar for cancellation all Securities theretofore authenticated (other than any Securities that have been destroyed, lost or stolen and in lieu of or in substitution for which other Securities
shall have been authenticated and delivered) and not theretofore canceled, or (b) all the Securities not theretofore canceled or delivered to the Trustee for cancellation shall have become due and payable (whether on the Maturity Date, on any
Redemption Date or on any Fundamental Change Purchase Date, upon conversion or otherwise) and the Company shall deposit with the Trustee, in trust, an amount of cash, or deliver to the Holders share of Common Stock, if any, as applicable, as the
case may be (solely to settle amounts due with respect to outstanding conversions), sufficient to pay all amounts due on all of such Securities (other than any Securities that shall have been mutilated, destroyed, lost or stolen and in lieu of or in
substitution for which other Securities shall have been authenticated and delivered pursuant to Section 306 of the Base Indenture) not theretofore canceled or delivered to the Trustee for cancellation, including principal and interest due,
accompanied, except in the event the Securities are due and payable solely in cash at the Maturity Date or upon an earlier Fundamental Change Purchase Date, by a verification report as to the sufficiency of the deposited amount from an independent
certified public accountant, and if the Company shall also pay or cause to be paid all other sums payable hereunder by the Company, then this Indenture shall cease to be of further effect (except as to (i) rights hereunder of Holders to receive
all amounts owing upon the Securities and the other rights, duties and obligations of Holders, as beneficiaries hereof with respect to the amounts, if any, so deposited with the Trustee and (ii) the rights, obligations and immunities of the
Trustee hereunder), and the Trustee, on written demand of the Company accompanied by an Officers’ Certificate and an Opinion of Counsel and at the cost and expense of the Company, shall execute proper instruments acknowledging satisfaction and
discharge of this Indenture; the Company, however, hereby agrees to reimburse the Trustee for any costs or expenses thereafter reasonably and properly incurred by the Trustee, including the fees and expenses of its counsel, and to compensate the
Trustee for any services thereafter reasonably and properly rendered by the Trustee in connection with this Indenture or the Securities. 

  
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 Section 7.02    Deposited Monies
to Be Held in Trust by Trustee. Subject to Section 7.04 hereof, all monies deposited with the Trustee pursuant to Section 7.01 hereof shall be held in trust for the sole benefit of the Holders of the Securities, and such monies shall
be applied by the Trustee to the payment, either directly or through any Paying Agent (including the Company if acting as its own Paying Agent), to the Holders of the particular Securities for the payment or settlement of which such monies have been
deposited with the Trustee, of all sums or amounts due and to become due thereon for principal and interest, if any. 
 
Section 7.03    Paying Agent to Repay Monies Held. Upon the satisfaction and discharge of this Indenture, all monies then held by any Paying Agent (if other than the Trustee) shall, upon written request of the
Company and subject to applicable escheatment law, be repaid to it or paid to the Trustee, and thereupon such Paying Agent shall be released from all further liability with respect to such monies. 

Section 7.04    Return of Unclaimed Monies. Subject to the requirements of
applicable law, any monies deposited with or paid to the Trustee for payment of the principal of or interest, if any, on the Securities and not applied but remaining unclaimed by the Holders of the Securities for two years after the date upon which
the principal of or interest, if any, on such Securities, as the case may be, shall have become due and payable, shall be repaid to the Company by the Trustee on written demand, and all liability of the Trustee shall thereupon cease with respect to
such monies; and the Holder shall thereafter look only to the Company for any payment or delivery that such Holder may be entitled to collect unless an applicable abandoned property law designates another Person. 

Section 7.05    Reinstatement. If the Trustee or the Paying Agent is unable to
apply any money in accordance with Section 7.02 by reason of any order or judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s obligations under the Indenture and
the Securities shall be revived and reinstated as though no deposit had occurred pursuant to Section 7.01 until such time as the Trustee or the Paying Agent is permitted to apply all such money in accordance with Section 7.02;
provided, however, that if the Company makes any payment of interest on, principal of or payment or delivery in respect of any Security following the reinstatement of its obligations, the Company shall be subrogated to the rights of
the Holders of such Securities to receive such payment from the money, if any, held by the Trustee or Paying Agent. 
 
ARTICLE 8 
 SUPPLEMENTAL INDENTURES 

Section 8.01    Supplemental Indentures Without Consent of Holders.
Section 901 of the Base Indenture shall not apply with respect to the Securities, and this Section 8.01 shall replace Section 901 of the Base Indenture in its entirety. Without the consent of any Holder, the Company (when authorized
by a Board Resolution) and the Trustee, at any time and from time to time, may enter into one or more indentures supplemental hereto, in form satisfactory to the Trustee, for any of the following purposes: 

  
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 (a)    to conform the terms of this Indenture or the Securities to the
description thereof in the Preliminary Prospectus Supplement, as supplemented by the issuer free writing prospectus related to the offering of the Securities filed by the Company with the Commission pursuant to Rule 433 under the Securities Act of
1933 on May 30, 2019; 
 (b)    to evidence the succession by a Successor Company and to provide for the assumption
by a Successor Company of the Company’s obligations under the Indenture; 
 (c)    to add guarantees with respect
to the Securities; 
 (d)    to secure the Securities; 

(e)    to issue additional Securities pursuant to Section 2.01(c); 

(f)    in connection with any transaction described in Section 4.07 hereof, to provide that the Securities are
convertible into Reference Property, subject to the provisions described in Section 4.03 hereof, and make related changes to the terms of the Securities to the extent expressly required by the Indenture; 

(g)    to add to the Company’s covenants or Events of Default such further covenants, restrictions or conditions for
the benefit of the Holders (or any other holders) or surrender any right or power conferred upon the Company by the Indenture; 

(h)    to cure any ambiguity, defect or inconsistency in this Indenture or the Securities, including to eliminate any
conflict with the Trust Indenture Act, or to make any other change that does not adversely affect the rights of any Holder in any material respect; 

(i)    to provide for a successor Trustee; 

(j)    to comply with the Applicable Procedures of the Depository; or 

(k)    to comply with any requirement of the Commission in connection with the qualification of the Indenture under the
Trust Indenture Act. 
 Section 8.02    Supplemental Indentures With Consent of
Holders. Section 902 of the Base Indenture shall not apply with respect to the Securities, and this Section 8.02 shall replace Section 902 of the Base Indenture in its entirety. 

With the consent of the Holders of not less than a majority in principal amount of the Outstanding Securities affected by such supplemental
indenture, including without limitation, consents obtained in connection with a purchase of, or tender or exchange offer for, Securities and by Act of said Holders delivered to the Company and the Trustee, the Company, when authorized by a Board
Resolution, and the Trustee may 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 of modifying in any manner the
rights of the Holders under this Indenture; provided, however, that no such supplemental indenture shall, without the consent of the Holder of each Outstanding Security affected thereby: 

  
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 (a)    reduce the percentage in aggregate principal amount of Securities
Outstanding necessary to waive any past Default or Event of Default; 
 (b)    reduce the rate of interest on any
Security or change the time for payment of interest on any Security; 
 (c)    reduce the principal of any Security or
change the Maturity Date; 
 (d)    change the place or currency of payment on any Security; 

(e)    make any change that impairs or adversely affects the conversion rights of any Securities; 

(f)    reduce the Redemption Price or the Fundamental Change Purchase Price of any Security or amend or modify in any
manner adverse to the rights of the Holders of the Securities the Company’s right to redeem the Securities or its obligation to pay the Fundamental Change Purchase Price, whether through an amendment or waiver of provisions in the covenants,
definitions related thereto or otherwise; 
 (g)    impair the right of any Holder of Securities to receive payment of
principal of, and interest, if any, on, its Securities, or the right to receive the consideration due upon conversion of its Securities on or after the due dates therefore or to institute suit for the enforcement of any such payment or delivery, as
the case may be, with respect to such Holder’s Securities; 
 (h)    modify the ranking provisions of this
Indenture in a manner that is adverse to the rights of the Holders of the Securities; or 
 (i)    make any change to
the provisions of this Article 8 that requires each Holder’s consent or in the waiver provisions in Section 6.05 of this Supplemental Indenture if such change is adverse to the rights of Holders of the Securities. 

It shall not be necessary for any Act or consent of Holders under this Section 8.02 to approve the particular form of any proposed
supplemental indenture, but it shall be sufficient if such Act or consent shall approve the substance thereof. The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Persons entitled to consent to any
indenture supplemental hereto. If a record date is fixed, the Holders on such record date, or their duly designated proxies, and only such Persons, shall be entitled to consent to such supplemental indenture, whether or not such Holders remain
Holders after such record date; provided that, unless such consent shall have become effective by virtue of the requisite percentage having been obtained prior to the date which is 90 days after such record date, any such consent previously
given shall automatically and without further action by any Holder be cancelled and of no further effect. 
 For the avoidance of doubt, the
provisions of Article Nine of the Base Indenture other than Sections 901 and 902 shall remain in effect and continue to apply with respect to the Securities. 

  
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 Section 8.03    Notice of
Amendment or Supplement. After an amendment or supplement under this Article 8 becomes effective, the Company shall mail to the Holders a notice briefly describing such amendment or supplement. However, the failure to give such notice to all the
Holders, or any defect in the notice, shall not impair or affect the validity of the amendment or supplement. 
 
ARTICLE 9 
 SUCCESSOR COMPANY 

Section 9.01    Consolidation, Merger and Sale of Assets. 

(a)    The provisions in Article Eight of the Base Indenture shall not apply with respect to the Securities, and this
Article 9 supersedes the entirety thereof. 
 (b) In addition, the reference to “Article Eight” in Section 1005 of the Base
Indenture is, with respect to the Securities, deemed replaced with a reference to this Article 9. 

Section 9.02    Company May Consolidate, Etc. on Certain Terms.
Subject to the provisions of Section 9.04, the Company shall not amalgamate or consolidate with, merge with or into or convey, sell, transfer or lease its properties and assets substantially as an entirety to another Person, unless: 

(a)    the Company shall be the surviving Person or the resulting, surviving or transferee Person (the “Successor
Company”), if not the Company, shall be 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, by
supplemental indenture, executed and delivered to the Trustee, in form satisfactory to the Trustee, all of the obligations of the Company under the Securities and this Indenture as applicable to the Securities; and 

(b)    immediately after giving effect to such transaction, no Default or Event of Default shall have occurred and be
continuing under this Indenture. 
 Section 9.03    Successor Corporation to Be
Substituted. In case of any such amalgamation, consolidation, merger, conveyance, sale, transfer or lease and upon the assumption by the Successor Company, by supplemental indenture, executed and delivered to the Trustee and satisfactory in form
to the Trustee, of the due and punctual payment of the principal of (including any Fundamental Change Purchase Price), accrued and unpaid interest and accrued and unpaid Supplementary Interest, if any, on all of the Securities, the due and punctual
delivery or payment, as the case may be, of any consideration due upon conversion of the Securities and the due and punctual performance of all of the covenants and conditions of this Indenture to be performed by the Company under this Indenture,
such Successor Company shall succeed to and be substituted for, and may exercise every right and power of, the Company under this Indenture, with the same effect as if it had been named herein as the party of the first part. 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 Securities issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon
the order of such Successor 

  
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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 Securities that previously shall have been signed and delivered by the officers of the Company to the Trustee for authentication, and any Securities that such Successor Company thereafter shall cause to be signed and
delivered to the Trustee for that purpose. All the Securities so issued shall in all respects have the same legal rank and benefit under this Indenture as the Securities theretofore or thereafter issued in accordance with the terms of this Indenture
as though all of such Securities had been issued at the date of the execution hereof. In the event of any such amalgamation, consolidation, merger, conveyance or transfer (but not in the case of a lease), 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 9 may be dissolved, wound up and liquidated at any time thereafter and, except in the case of a lease,
such Person shall be released from its liabilities as obligor and maker of the Securities and from its obligations under this Indenture. 

In case of any such amalgamation, consolidation, merger, conveyance, transfer or lease, such changes in phraseology and form (but not in
substance) may be made in the Securities thereafter to be issued as may be appropriate. 

Section 9.04    Opinion of Counsel to Be Given to Trustee. In the case of any
amalgamation, merger, consolidation, conveyance, transfer or lease the Trustee shall receive an Officers’ Certificate and an Opinion of Counsel stating that any such amalgamation, consolidation, merger, 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 9 and constitutes the legal, valid and binding obligations of the Company
(subject to customary exceptions and assumptions) and that all conditions precedent thereto have been satisfied. 
 
ARTICLE 10 
 MEETING OF HOLDERS OF SECURITIES 

Section 10.01    Purposes for Which Meetings May Be Called. 

(a)    A meeting of Holders of Securities may be called at any time and from time to time pursuant to this Article 10 to
make, give or take any request, demand, authorization, direction, notice, consent, waiver or other action provided by this Indenture to be made, given or taken by Holders of Securities. 

Section 10.02    Call, Notice and Place of Meetings. 

(a)    The Trustee may at any time call a meeting of Holders of Securities for any purpose specified in
Section 10.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of Holders of Securities, setting forth the time and the place of such meeting and in general terms the action proposed to be taken
at such meeting, shall be given, in the manner provided in Section 106 of the Base Indenture, not less than 20 nor more than 180 days prior to the date fixed for the meeting. 

  
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 (b)    In case at any time the Company, pursuant to a Board Resolution,
or the Holders of at least 25% in principal amount of the outstanding Securities shall have requested the Trustee to call a meeting of the Holders of Securities for any purpose specified in Section 10.01, by written request setting forth in
reasonable detail the action proposed to be taken at the meeting, and the Trustee shall not have made the first publication of the notice of such meeting within 20 days after receipt of such request or shall not thereafter proceed to cause the
meeting to be held as provided herein, then the Company or the Holders of Securities in the amount above specified, as the case may be, may determine the time and the place for such meeting and may call such meeting for such purposes by giving
notice thereof as provided in subsection (a) of this Section 10.02. 

Section 10.03    Persons Entitled to Vote at Meetings. 

(a)    To be entitled to vote at any meeting of Holders of Securities, a Person shall be 

(1)    a Holder of one or more outstanding Securities, or 

(2)    a Person appointed by an instrument in writing as proxy for a Holder or Holders of one or more
outstanding Securities by such Holder or Holders. The only Persons who shall be entitled to be present or to speak at any meeting of Holders of Securities shall be the Persons entitled to vote at such meeting and their counsel, any representatives
of the Trustee and its counsel and any representatives of the Company and their respective counsel. 

Section 10.04    Quorum; Action. 

(a)    The Persons entitled to vote a majority in principal amount of the outstanding Securities shall constitute a quorum
for a meeting of Holders of Securities; provided, however, that if any action is to be taken at such meeting with respect to a consent or waiver which this Indenture expressly provides may be given by the Holders of not less than a
specified percentage in principal amount of the outstanding Securities, the Persons entitled to vote such specified percentage in principal amount of the outstanding Securities shall constitute a quorum. In the absence of a quorum within 30 minutes
after the time appointed for any such meeting, the meeting shall, if convened at the request of Holders of Securities, be dissolved. In any other case the meeting may be adjourned for a period of not less than 10 days as determined by the chairman
of the meeting prior to the adjournment of such meeting. In the absence of a quorum at the reconvening of any such adjourned meeting, such adjourned meeting may be further adjourned for a period of not less than 10 days; at the reconvening of any
meeting adjourned or further adjourned for lack of a quorum, the Persons entitled to vote 25% in aggregate principal amount of the then outstanding Securities shall constitute a quorum for the taking of any action set forth in the notice of the
original meeting. Notice of the reconvening of any adjourned meeting shall be given as provided in Section 10.02(a), except that such notice need be given only once not less than five days prior to the date on which the meeting is scheduled to
be reconvened. 

  
 55 

 (b)    Except as limited by the proviso to Section 8.02, any
resolution presented to a meeting or adjourned meeting duly reconvened at which a quorum is present as aforesaid may be adopted by the affirmative vote of the Persons entitled to vote a majority in aggregate principal amount of the outstanding
Securities; provided, however, that, except as limited by the proviso to Section 8.02, any resolution with respect to any request, demand, authorization, direction, notice, consent, waiver or other action which this
Indenture expressly provides may be made, given or taken by the Holders of a specified percentage, which is less than a majority, in principal amount of the outstanding Securities may be adopted at a meeting or an adjourned meeting duly reconvened
and at which a quorum is present as aforesaid by the affirmative vote of the Holders of such specified percentage in principal amount of the outstanding Securities. 

Any resolution passed or decision taken at any meeting of Holders of Securities duly held in accordance with this Section 10.04 shall be
binding on all the Holders of Securities, whether or not present or represented at the meeting. 
 Notwithstanding the foregoing provisions
of this Section 10.04, if any action is to be taken at a meeting of Holders of Securities with respect to any request, demand, authorization, direction, notice, consent, waiver or other action that this Indenture expressly provides may be made,
given or taken by the Holders of a specified percentage in principal amount of all outstanding Securities affected thereby: 

(1)    there shall be no minimum quorum requirement for such meeting; and 

(2)    the principal amount of the outstanding Securities that vote in favor of such request, demand,
authorization, direction, notice, consent, waiver or other action shall be taken into account in determining whether such request, demand, authorization, direction, notice, consent, waiver or other action has been made, given or taken under this
Indenture. 
 Section 10.05    Determination of Voting Rights; Conduct and
Adjournment of Meetings. 
 (a)    Notwithstanding any provisions of this Indenture, the Trustee may make such
reasonable regulations as it may deem advisable for any meeting of Holders of Securities in regard to proof of the holding of Securities 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 deem appropriate. 

(b)    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 of Securities as provided in Section 10.02(b), in which case the Company or the Holders of Securities 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 Persons entitled to vote a majority in principal amount of the outstanding Securities represented at the meeting. 

  
 56 

 (c)    At any meeting each Holder of such Securities or proxy shall be
entitled to one vote for each $1,000 principal amount of the outstanding Securities held or represented by him; provided, however, that no vote shall be cast or counted at any meeting in respect of any Security 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, except as a Holder of Securities or proxy. 

(d)    Any meeting of Holders of Securities duly called pursuant to Section 10.02 at which a quorum is present may be
adjourned from time to time by Persons entitled to vote a majority in principal amount of the outstanding Securities represented at the meeting, and the meeting may be held as so adjourned without further notice. 

Section 10.06    Counting Votes and Recording Action of Meetings. 

(a)    The vote upon any resolution submitted to any meeting of Holders of Securities shall be by written ballots on which
shall be subscribed the signatures of the Holders of Securities or of their representatives by proxy and the principal amounts and serial numbers of the outstanding Securities 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, at least in duplicate, of the proceedings of each meeting of Holders of Securities 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 fact, setting forth a copy of the notice of the meeting and showing that said notice was given as provided in Section 10.02 and, if applicable,
Section 10.04. Each copy shall be signed and verified by the affidavits of the permanent chairman and secretary of the meeting and one such copy shall be delivered to the Company and another 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. 

ARTICLE 11 

MISCELLANEOUS 
 
Section 11.01    Effect on Successors and Assigns. Notwithstanding Section 112 of the Base Indenture, all agreements of the Company, the Trustee, the Security Registrar, the Paying Agent and the Conversion
Agent in this Indenture and the Securities will bind their respective successors. 

Section 11.02    Governing Law; Jurisdiction; Waiver of Jury Trial. THE
INTERNAL LAWS OF THE STATE OF NEW YORK SHALL GOVERN AND BE USED TO CONSTRUE THIS INDENTURE AND THE SECURITIES, INCLUDING WITHOUT LIMITATION, SECTIONS 5-1401 AND 5-1402
OF THE NEW YORK GENERAL OBLIGATIONS LAW AND NEW YORK CIVIL PRACTICE LAWS AND RULES 327(B). 

  
 57 

 The Company, the Trustee and, by acceptance of the Securities, each Holder agrees that any
suit, action or proceeding arising out of or based upon this Supplemental Indenture or the transactions contemplated hereby may be instituted in any State or Federal court in The City of New York, New York, and waives any objection which it may now
or hereafter have to the laying of venue of any such proceeding, and irrevocably submits to the nonexclusive jurisdiction of such courts in any suit, action or proceeding. 

THE COMPANY, THE TRUSTEE AND EACH HOLDER OF THE SECURITIES BY HIS ACCEPTANCE THEREOF HEREBY WAIVE ALL RIGHT TO TRIAL BY JURY IN ANY ACTION,
PROCEEDING OR COUNTERCLAIM (WHETHER BASED ON CONTRACT, TORT OR OTHERWISE) ARISING OUT OF OR RELATING TO THIS INDENTURE OR THE TRANSACTIONS CONTEMPLATED HEREBY. 

Section 11.03    No Security Interest Created. Nothing in this Indenture or in
the Securities, 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 11.04    Trust Indenture Act. If any provision hereof limits,
qualifies or conflicts with a provision of the Trust Indenture Act that is required under such Act to be a part of and govern this Indenture, the latter provision shall control. If any provision of this Indenture modifies or excludes any provision
of the Trust Indenture Act that may be so modified or excluded, the latter provision shall be deemed to apply to this Indenture as so modified or to be excluded, as the case may be. 

Section 11.05    Benefits of Supplemental Indenture. Notwithstanding anything
to the contrary in Section 112 of the Base Indenture, nothing in this Supplemental Indenture or in the Securities, expressed or implied, will give to any Person, other than the parties hereto, any Paying Agent, any Conversion Agent, any
Authenticating Agent, any Security Registrar or their successors hereunder or the Holders of the Securities, any benefit or any legal or equitable right, remedy or claim under this Supplemental Indenture. 

Section 11.06    Calculations. The Company shall be responsible for making all
calculations called for under the Securities and this Indenture. These calculations include, but are not limited to, determinations of the Stock Price, the Last Reported Sale Prices of the Common Stock, accrued interest payable on the Securities and
the Conversion Rate (including adjustments thereto). 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 of Securities. 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 request of that Holder at the sole cost and expense of the Company. Neither the Trustee nor the Conversion Agent shall be responsible for determining
whether any event has occurred that would cause a Conversion Rate adjustment. The Company shall deliver a notice to the Trustee and the Conversion Agent with respect to any Conversion Rate adjustment, on which notice the Trustee and the Conversion
Agent may conclusively rely. 

  
 58 

 Whenever the Company is required to calculate the Conversion Rate, or any adjustment
thereto, the Company shall do so to the nearest 1/10,000th of a share of Common Stock. 

Section 11.07    Execution in Counterparts. This Supplemental 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. 

Section 11.08    Notices. The Company or the Trustee, by notice given to the
other in the manner provided in Section 105 of the Base Indenture, may designate additional or different addresses for subsequent notices or communications. 

Notwithstanding anything to the contrary in Sections 105 and 106 of the Base Indenture, whenever the Company is required to deliver notice to
the Holders, the Company shall, by the date it is required to deliver such notice to the Holders, deliver a copy of such notice to the Trustee, the Paying Agent, the Security Registrar and the Conversion Agent. Each notice to the Trustee, the Paying
Agent, the Security Registrar and the Conversion Agent shall be sufficiently given if in writing and delivered via a PDF transmission by or mailed, first-class postage prepaid to the address most recently sent by the Trustee, the Paying Agent, the
Security Registrar or the Conversion Agent, as the case may be, to the Company. 

Section 11.09    Ratification of Base Indenture. The Base Indenture, as
supplemented by this Supplemental Indenture, is in all respects ratified and confirmed, and this Supplemental Indenture shall be deemed part of the Base Indenture in the manner and to the extent herein provided. For the avoidance of doubt, each of
the Company and each Holder of Securities, by its acceptance of such Securities, acknowledges and agrees that all of the rights, privileges, protections, immunities and benefits afforded to the Trustee under the Base Indenture are deemed to be
incorporated herein, and shall be enforceable by the Trustee hereunder, in each of its capacities hereunder as if set forth herein in full. 

Section 11.10    The Trustee. The recitals in this Supplemental Indenture are
made by the Company only and not by the Trustee, and all of the provisions contained in the Base Indenture in respect of the rights, privileges, immunities, powers and duties of the Trustee shall be applicable in respect of the Securities and of
this Supplemental Indenture as fully and with like effect as set forth in full herein. 

Section 11.11    No Recourse Against Others. No director, officer, employee,
incorporator or stockholder of the Company shall have any liability for any obligations of the Company under the Securities, the Indenture or any claim based on, in respect of, or by reason of, such obligations or their creation. Each Holder, by
accepting a Security, waives and releases all such liability. The waiver and release are part of the consideration for issuance of the Securities. 

[Remainder of the page intentionally left blank] 

  
 59 

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

					
	MFA FINANCIAL, INC.
		
	By:            	 	 /s/ Stephen Yarad

		 	Name:	 	Stephen Yarad
		 	Title:	 	Chief Financial Officer

 [Signature Page to First Supplemental Indenture] 

 
					
	WILMINGTON TRUST, NATIONAL ASSOCIATION,
as Trustee
		
	By:            	 	 /s/ Jane Schweiger

		 	Name:	 	Jane Schweiger
		 	Title:	 	Vice President

 [Signature Page to First Supplemental Indenture] 

 SCHEDULE A 

The following table sets forth the number of Additional Shares by which the Conversion Rate shall be increased pursuant to Section 4.06
based on the Stock Price and Effective Date set forth below. 
  

																																									
	 	  	Stock Price	 
	 Effective Date
	  	$7.23	 	  	$7.40	 	  	$7.60	 	  	$7.80	 	  	$7.95	 	  	$8.25	 	  	$8.50	 	  	$9.00	 	  	$9.50	 	  	$11.00	 
	 June 3, 2019
	  	 	12.5738	 	  	 	10.6311	 	  	 	8.5658	 	  	 	6.7359	 	  	 	5.5119	 	  	 	3.4364	 	  	 	2.0706	 	  	 	0.3900	 	  	 	0.0263	 	  	 	0.0000	 
											
	 June 15, 2020
	  	 	12.5738	 	  	 	10.6311	 	  	 	8.5658	 	  	 	6.7359	 	  	 	5.5119	 	  	 	3.4364	 	  	 	2.0706	 	  	 	0.3900	 	  	 	0.0263	 	  	 	0.0000	 
											
	 June 15, 2021
	  	 	12.5738	 	  	 	10.6311	 	  	 	8.5658	 	  	 	6.7359	 	  	 	5.5119	 	  	 	3.4364	 	  	 	2.0706	 	  	 	0.3900	 	  	 	0.0263	 	  	 	0.0000	 
											
	 June 15, 2022
	  	 	12.5738	 	  	 	10.6311	 	  	 	8.5658	 	  	 	6.7359	 	  	 	5.5119	 	  	 	3.4364	 	  	 	2.0706	 	  	 	0.3900	 	  	 	0.0263	 	  	 	0.0000	 
											
	 June 15, 2023
	  	 	12.5738	 	  	 	10.6311	 	  	 	8.5658	 	  	 	6.3936	 	  	 	4.9748	 	  	 	2.7455	 	  	 	1.4635	 	  	 	0.2222	 	  	 	0.0116	 	  	 	0.0000	 
											
	 June 15, 2024
	  	 	12.5738	 	  	 	9.3959	 	  	 	5.8408	 	  	 	2.4667	 	  	 	0.0478	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 

 Schedule A-1 

 EXHIBIT A 

[FORM OF FACE OF SECURITY] 
 [For Global
Securities, include the following legend: 
 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 HEREUNDER 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.] 

  
 Exh. A-1 

			
	No.:	  	[                    ]
	CUSIP:	  	55272X AA0
	ISIN:	  	US55272XAA00

 MFA Financial, Inc. 

6.25% Convertible Senior Notes due 2024 

MFA Financial, Inc., a Maryland corporation, promises to pay to [    ] [include “Cede &
Co.” for Global Security] or registered assigns, the principal amount of $[        ] [as revised by the Schedule of Increases and Decreases of Global Security attached hereto]1 on June 15, 2024 (the “Maturity Date”). 
 Interest Payment Dates:
June 15 and December 15, beginning on December 15, 2019. 
 Regular Record Dates: June 1 and December 1, beginning
on December 1, 2019. 
 Additional provisions of this Security are set forth on the other side of this Security. 

 

	1 	 Include for Global Securities only. 

  
 Exh. A-2 

 IN WITNESS WHEREOF, MFA FINANCIAL, INC. has caused this instrument to be duly signed. 

 

							
		 		 	MFA FINANCIAL, INC.
				
		 		 	By:	 	  

		 		 		 	Name:
		 		 		 	Title:
				
	Dated:                                     
    	 		 		 	
			
		 		 	MFA FINANCIAL, INC.
				
		 		 	By:	 	  

		 		 		 	Name:
		 		 		 	Title:
				
	Dated:                                     
    	 		 		 	

  
 Exh. A-3 

 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

Wilmington Trust, National Association, as Trustee, certifies that this is one of the Securities referred to in the within-mentioned Indenture. 

 

					
	WILMINGTON TRUST, NATIONAL ASSOCIATION, as Trustee
			
	By:	 	  
	 	
		 	Authorized Signatory	 	
			
	Dated:    	 	  
	 	

  
 Exh. A-4 

 [FORM OF REVERSE OF SECURITY] 

MFA FINANCIAL, INC. 
 6.25%
Convertible Senior Notes due 2024 
 This Security is one of a duly authorized issue of securities of the Company (herein called the
“Securities”), issued under a Indenture dated as of June 3, 2019 (herein called the “Base Indenture”), and as further supplemented by the First Supplemental Indenture, dated as of June 3, 2019 (herein
called the “Supplemental Indenture” and the Base Indenture, as supplemented by the Supplemental Indenture, the “Indenture”) by and between the Company and Wilmington Trust, National Association, herein called the
“Trustee”, and reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the Securities and of the
terms upon which the Securities are, and are to be, authenticated and delivered. This Security is not subject to redemption at the option of the Company prior to the Maturity Date and does not benefit from a sinking fund. 

As provided in and subject to the provisions of the Indenture, upon the occurrence of a Fundamental Change, the Holder of this Security will
have the right, at such Holder’s option, to require the Company to purchase this Security, or any portion of this Security such that the principal amount of this Security that is not purchased equals $1,000 or an integral multiple of $1,000 in
excess thereof, on the Fundamental Change Purchase Date at a price equal to the Fundamental Change Purchase Price for such Fundamental Change Purchase Date. 

As provided in and subject to the provisions of the Indenture, the Holder hereof has the right, at any time prior to the Close of Business on
the Business Day immediately preceding the Maturity Date, to convert this Security or a portion of this Security such that the principal amount of this Security that is not converted equals $1,000 or an integral multiple of $1,000 in excess thereof,
into shares of Common Stock in accordance with Article 4 of the Supplemental Indenture. 
 As provided in and subject to the provisions of
the Indenture, the Company shall make all payments in respect of the Fundamental Change Purchase Price for, and the principal amount of, this Security to the Holder that surrenders this Security to the Paying Agent to collect such payments in
respect of this Security. The Company shall 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 permits, with certain exceptions as therein provided, the amendment thereof and the modification of the rights and obligations
of the Company and the rights of the Holders of the Securities to be effected under the Indenture at any time by the Company and the Trustee with the consent of the Holders of a majority in principal amount of the Securities at the time Outstanding.
The Indenture also contains provisions permitting the Holders of specified percentages in principal amount of the Securities at the time Outstanding, on behalf of the Holders of all Securities, to waive compliance by the Company with certain
provisions of the Indenture and certain past Defaults under the Indenture and their consequences. Any such consent or waiver by the Holder of this Security shall be conclusive and binding upon such 

  
 Exh. A-5 

 
Holder and upon all future Holders of this Security and of any Security issued upon the registration of transfer hereof or in exchange herefor or in lieu hereof, whether or not notation of such
consent or waiver is made upon this Security. 
 As provided in and subject to the provisions of the Indenture, the Holder of this Security
shall not have the right to institute any proceeding with respect to the Indenture, or for the appointment of a receiver or trustee, or for any other remedy thereunder, unless such Holder shall have previously given the Trustee written notice of a
continuing Event of Default with respect to the Security, the Holders of not less than 25% in principal amount of the Securities at the time Outstanding shall have made written request to the Trustee to institute proceedings in respect of such Event
of Default as Trustee and offered the Trustee indemnity satisfactory to it, and the Trustee shall not have received from the Holders of a majority in principal amount of Securities at the time Outstanding a direction inconsistent with such request,
and shall have failed to institute any such proceeding, for 60 days after receipt of such notice, request and offer of indemnity. The foregoing shall not apply to any suit instituted by the Holder of this Security for the enforcement of any payment
of principal hereof or interest hereon or amounts due upon conversion on or after the respective due dates expressed herein. 
 No reference
herein to the Indenture and no provision of this Security 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 of (including the
Fundamental Change Purchase Price), interest on and the consideration due upon conversion of, this Security at the time, place and rate, and in the coin and currency, herein prescribed. 

As provided in the Indenture and subject to certain limitations therein set forth, the transfer of this Security is registrable in the
Security Register, upon surrender of this Security for registration of transfer at the office or agency of the Company in any place where the principal of and interest on this Security are payable, duly endorsed by, or accompanied by a written
instrument of transfer in form satisfactory to the Company and the Security Registrar duly executed by, the Holder hereof or its attorney duly authorized in writing, and thereupon one or more new Securities of this series and of like tenor, of
authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 
 The
Securities are issuable only in registered form without coupons in denominations of $1,000 and integral multiples of $1,000 in excess thereof. As provided in the Indenture and subject to certain limitations therein set forth, the Securities are
exchangeable for a like aggregate principal amount of Securities and of like tenor of a different authorized denomination, as requested by the Holder surrendering the same. 

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

  
 Exh. A-6 

 No service charge shall be made for any such registration of transfer or exchange, but the
Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 
 All
defined terms used in this Security that are defined in the Indenture shall have the meanings assigned to them in the Indenture. If any provision of this Security limits, qualifies or conflicts with a provision of the Indenture, such provision of
the Indenture shall control. 
 The Company will furnish to any Holder upon written request and without charge a copy of the Indenture.
Requests may be made to the Company at the following address: 
 MFA Financial, Inc. 

350 Park Avenue, 20th Floor 

New York, NY 10022 
 Attention:
Investor Relations Department 
 Telephone: 212-207-6488

  
 Exh. A-7 

 ABBREVIATIONS 

The following abbreviations, when used in the inscription of the face of this Security, shall be construed as though they were written out in
full. 
  

			
	 TEN COM - as tenants in common
	  	 UNIF GIFT MIN ACT

		  	 Custodian

		  	 (Cust)

		
	 TEN ENT - as tenants by the entireties
	  	                                   
		  	 (Minor)

		
	 JT TEN - as joint tenants with right of survivorship and not as tenants in common
	  	 Uniform Gifts to Minors Act

		  	 (State)

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

  
 Exh. A-8 

 ANNEX A 

[Include for Global Security] 

SCHEDULE OF INCREASES AND DECREASES OF GLOBAL SECURITY 

Initial principal amount of Global Security: 
  

																	
	 Date
	  	Amount of
Increase in
principal
amount of
Global
Security	 	  	Amount of
Decrease in
principal
amount of
Global
Security	 	  	Principal
amount of
Global
Security
after
Increase or
Decrease	 	  	Notation
by Security
Registrar or
Custodian	 
		  				  				  				  			
		  				  				  				  			
		  				  				  				  			

  
 Annex A-1 

 ATTACHMENT 1 

[FORM OF NOTICE OF CONVERSION] 

To:    MFA Financial, Inc. 
 c/o Conversion
Agent 
 The undersigned Holder of this Security hereby irrevocably exercises the option to convert this Security, or a portion hereof (which is such that
the principal amount of the portion of this Security that will not be converted equals $1,000 or an integral multiple of $1,000 in excess thereof) below designated shares of Common Stock (and cash in lieu of delivering any fractional shares of
Common Stock) in accordance with the terms of the Indenture referred to in this Security, and directs that any cash payable and any shares of Common Stock issuable and deliverable upon conversion, together with any Securities representing any
unconverted principal amount hereof, be paid and/or issued and/or delivered, as the case may be, to the registered Holder hereof unless a different name is indicated below. 

Subject to certain exceptions set forth in the Indenture, if this notice is being delivered on a date after the Close of Business on a Regular Record Date and
prior to the Open of Business on the Interest Payment Date corresponding to such Regular Record Date, this notice must be accompanied by payment of an amount equal to the interest payable on such Interest Payment Date on the principal amount of this
Security to be converted. If any shares of Common Stock are to be issued in the name of a Person other than the undersigned, the undersigned will pay all transfer taxes payable with respect to such issuance and transfer as set forth in the
Indenture. 
 Principal amount to be converted (in an integral multiple of $1,000, if less than all): 

 

			
	Dated:	 	
		
		 	  

		 	  

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

		 	  

		 	Signature Guarantee

  
 Annex A-2 

 The following information must be provided to complete the conversion of your Securities
to Common Stock. 
  

	
	  

	 (Name)

	
	  

	 (Address)

	
	 Please print Name and Address

	 (including zip code number)

	 Social Security or other Taxpayer

	
	 Identifying

	
Number                  
                                         
                               

  
 Annex A-3 

 ATTACHMENT 2 

[FORM OF FUNDAMENTAL CHANGE PURCHASE NOTICE] 

To:    MFA Financial, Inc. 
 c/o Paying
Agent 
 The undersigned registered owner of this Security hereby acknowledges receipt of a notice from MFA Financial, Inc. (the “Company”)
as to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Purchase Date and requests and instructs the Company to pay to the registered holder hereof in accordance with the applicable provisions
of this Security and the Indenture (i) the entire principal amount of this Security, or the portion thereof (that is such that the portion not to be purchased has a principal amount equal to $1,000 or an integral multiple of $1,000 in excess
thereof) below designated, and (ii) if such Fundamental Change Purchase Date does not occur during the period after a Regular Record Date and on or prior to the Interest Payment Date corresponding to such Regular Record Date, accrued and unpaid
interest, if any, thereon to, but excluding, such Fundamental Change Purchase Date. 
 In the case of certificated Securities, the certificate numbers of
the Securities to be purchased are as set forth below: 
  

			
	Dated: 	 	
		
		 	Signature(s)
		
		 	  

		 	Social Security or Other Taxpayer Identification Number
		
		 	principal amount to be repaid (if less than all):
		 	$     ,000
		 	NOTICE: The signature on the Fundamental Change Purchase Notice must correspond with the name as written upon the face of the Security in every particular without alteration or enlargement or any change whatever.

  
 Annex A-4 

 ATTACHMENT 3 

[FORM OF ASSIGNMENT AND TRANSFER] 

For value received                     
hereby sell(s), assign(s) and transfer(s) unto                      (Please insert social security or Taxpayer Identification Number of assignee) the
within Security, and hereby irrevocably constitutes and appoints                      to
                     transfer the said Security on the books of the Company, with full power of substitution in the premises. 

In connection with any transfer of the Security, the undersigned confirm(s) that such Security is being transferred: 

 

			
	Dated:	 	
		
		 	  

		 	  

		 	Signature(s)
		
		 	Signature(s) must be guaranteed by an institution which is a member of one of the following recognized signature Guarantee Programs:
		
		 	(i) The Securities Transfer Agent Medallion Program (STAMP); (ii) The New York Stock Exchange Medallion Program (MNSP); (iii) The Stock Exchange Medallion Program (SEMP); or (iv) another guarantee program

  
 Annex A-5EX-4.1

 Exhibit 4.1 

Execution Version 
  

 
  

INTERDIGITAL, INC. 
 2.00% Senior
Convertible Notes due 2024 
  
  

INDENTURE 
 Dated as of
June 3, 2019 
  
  

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., 

as Trustee 
  

 
  

 TABLE OF CONTENTS 
  

							
	 	 	 	  	Page	 
	 ARTICLE 1 Definitions and Incorporation by Reference
	  	 	1	 
			
	 SECTION 1.01.
	 	Definitions	  	 	1	 
		
	 ARTICLE 2 The Notes
	  	 	12	 
			
	 SECTION 2.01.
	 	Designation, Amount and Issuance of Notes	  	 	12	 
	 SECTION 2.02.
	 	Form of the Notes	  	 	12	 
	 SECTION 2.03.
	 	Date and Denomination of Notes; Payment at Maturity; Payment of Interest	  	 	13	 
	 SECTION 2.04.
	 	Execution and Authentication	  	 	14	 
	 SECTION 2.05.
	 	Registrar and Paying Agent	  	 	14	 
	 SECTION 2.06.
	 	Paying Agent to Hold Money in Trust	  	 	15	 
	 SECTION 2.07.
	 	Holder Lists	  	 	15	 
	 SECTION 2.08.
	 	Exchange and Registration of Transfer of Notes; Restrictions on Transfer	  	 	15	 
	 SECTION 2.09.
	 	Replacement Notes	  	 	20	 
	 SECTION 2.10.
	 	Outstanding Notes	  	 	20	 
	 SECTION 2.11.
	 	Temporary Notes	  	 	21	 
	 SECTION 2.12.
	 	Cancellation	  	 	21	 
	 SECTION 2.13.
	 	Defaulted Interest	  	 	22	 
	 SECTION 2.14.
	 	CUSIP Numbers and ISINs	  	 	23	 
	 SECTION 2.15.
	 	Ranking	  	 	23	 
		
	 ARTICLE 3 Repurchase of Notes
	  	 	23	 
			
	 SECTION 3.01.
	 	Repurchase at Option of Holders Upon a Fundamental Change	  	 	23	 
	 SECTION 3.02.
	 	Withdrawal of Fundamental Change Repurchase Notice	  	 	26	 
	 SECTION 3.03.
	 	Deposit of Fundamental Change Repurchase Price	  	 	27	 
	 SECTION 3.04.
	 	Notes Repurchased in Part	  	 	27	 
	 SECTION 3.05.
	 	Covenant to Comply with Securities Laws Upon Repurchase of Notes	  	 	27	 
		
	 ARTICLE 4 Covenants
	  	 	27	 
			
	 SECTION 4.01.
	 	Payment of Notes	  	 	27	 
	 SECTION 4.02.
	 	Maintenance of Office or Agency	  	 	28	 
	 SECTION 4.03.
	 	Reports; 144A Information	  	 	28	 
	 SECTION 4.04.
	 	Existence	  	 	29	 
	 SECTION 4.05.
	 	[Reserved]	  	 	29	 
	 SECTION 4.06.
	 	Compliance Certificate	  	 	29	 
	 SECTION 4.07.
	 	Further Instruments and Acts	  	 	29	 
	 SECTION 4.08.
	 	Notification of Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest	  	 	29	 

  
 i 

							
	 SECTION 4.09.
	 	Statement by Officer as to Default	  	 	29	 
	 SECTION 4.10.
	 	Waiver of Stay, Extension or Usury Laws	  	 	30	 
	 SECTION 4.11.
	 	[Reserved]	  	 	30	 
	 SECTION 4.12.
	 	Rule 144 Additional Interest	  	 	30	 
	 SECTION 4.13.
	 	Free Transferability of Notes	  	 	30	 
		
	 ARTICLE 5 Successor Company
	  	 	31	 
			
	 SECTION 5.01.
	 	When Company May Merge or Transfer Assets	  	 	31	 
	 SECTION 5.02.
	 	Successor to Be Substituted	  	 	32	 
	 SECTION 5.03.
	 	Opinion of Counsel to Be Given Trustee	  	 	32	 
		
	 ARTICLE 6 Defaults and Remedies
	  	 	33	 
			
	 SECTION 6.01.
	 	Events of Default	  	 	33	 
	 SECTION 6.02.
	 	Acceleration	  	 	35	 
	 SECTION 6.03.
	 	[Reserved]	  	 	35	 
	 SECTION 6.04.
	 	Other Remedies	  	 	35	 
	 SECTION 6.05.
	 	Waiver of Past Defaults	  	 	36	 
	 SECTION 6.06.
	 	Control by Majority	  	 	36	 
	 SECTION 6.07.
	 	Limitation on Suits	  	 	36	 
	 SECTION 6.08.
	 	Rights of Holders to Receive Payment	  	 	37	 
	 SECTION 6.09.
	 	Collection Suit by Trustee	  	 	37	 
	 SECTION 6.10.
	 	Trustee May File Proofs of Claim	  	 	37	 
	 SECTION 6.11.
	 	Priorities	  	 	37	 
	 SECTION 6.12.
	 	Undertaking for Costs	  	 	38	 
	 SECTION 6.13.
	 	Failure to Comply with Reporting Covenant	  	 	38	 
		
	 ARTICLE 7 Trustee
	  	 	39	 
			
	 SECTION 7.01.
	 	Duties of Trustee	  	 	39	 
	 SECTION 7.02.
	 	Rights of Trustee	  	 	40	 
	 SECTION 7.03.
	 	Individual Rights of Trustee	  	 	41	 
	 SECTION 7.04.
	 	Trustee’s Disclaimer	  	 	41	 
	 SECTION 7.05.
	 	Notice of Defaults	  	 	41	 
	 SECTION 7.06.
	 	Reports by Trustee to Holders	  	 	42	 
	 SECTION 7.07.
	 	Compensation and Indemnity	  	 	42	 
	 SECTION 7.08.
	 	Replacement of Trustee	  	 	43	 
	 SECTION 7.09.
	 	Successor Trustee by Merger	  	 	43	 
	 SECTION 7.10.
	 	Eligibility; Disqualification	  	 	44	 
	 SECTION 7.11.
	 	Preferential Collection of Claims Against Company	  	 	44	 
		
	 ARTICLE 8 Discharge of Indenture
	  	 	44	 
			
	 SECTION 8.01.
	 	Discharge of Liability on Notes	  	 	44	 
	 SECTION 8.02.
	 	Application of Trust Money	  	 	45	 
	 SECTION 8.03.
	 	Repayment to Company	  	 	45	 
	 SECTION 8.04.
	 	Reinstatement	  	 	45	 

  
 ii 

							
	 ARTICLE 9 Amendments
	  	 	45	 
			
	 SECTION 9.01.
	 	Without Consent of Holders	  	 	45	 
	 SECTION 9.02.
	 	With Consent of Holders	  	 	47	 
	 SECTION 9.03.
	 	Compliance with Trust Indenture Act	  	 	48	 
	 SECTION 9.04.
	 	Revocation and Effect of Consents and Waivers	  	 	48	 
	 SECTION 9.05.
	 	Notation on or Exchange of Notes	  	 	48	 
	 SECTION 9.06.
	 	Trustee to Sign Amendments	  	 	48	 
		
	 ARTICLE 10 Conversion of Notes
	  	 	49	 
			
	 SECTION 10.01.
	 	Right to Convert	  	 	49	 
	 SECTION 10.02.
	 	Conversion Procedures; Settlement Upon Conversion; No Adjustment for Interest or Dividends; Cash Payments in Lieu of Fractional Shares	  	 	51	 
	 SECTION 10.03.
	 	Adjustment to Conversion Rate Upon a Non-Stock Change of Control	  	 	55	 
	 SECTION 10.04.
	 	Adjustment of Conversion Rate	  	 	57	 
	 SECTION 10.05.
	 	Effect of Reclassifications, Business Combinations, Asset Sales and Corporate Events	  	 	65	 
	 SECTION 10.06.
	 	Certain Covenants	  	 	67	 
	 SECTION 10.07.
	 	Notice to Holders Prior to Certain Actions	  	 	67	 
	 SECTION 10.08.
	 	Shareholder Rights Plans	  	 	68	 
	 SECTION 10.09.
	 	Responsibility of Trustee	  	 	69	 
	 SECTION 10.10.
	 	Exchange-Related Limitations	  	 	69	 
	 SECTION 10.11.
	 	Exchange in Lieu of Conversion	  	 	70	 
		
	 ARTICLE 11 Miscellaneous
	  	 	70	 
			
	 SECTION 11.01.
	 	Trust Indenture Act Controls	  	 	70	 
	 SECTION 11.02.
	 	Notices	  	 	70	 
	 SECTION 11.03.
	 	Communication by Holders with Other Holders	  	 	71	 
	 SECTION 11.04.
	 	Certificate and Opinion as to Conditions Precedent	  	 	71	 
	 SECTION 11.05.
	 	Statements Required in Certificate or Opinion	  	 	72	 
	 SECTION 11.06.
	 	When Notes Disregarded	  	 	72	 
	 SECTION 11.07.
	 	Rules by Trustee, Paying Agent and Registrar	  	 	72	 
	 SECTION 11.08.
	 	Set-Off of Withholding Taxes	  	 	72	 
	 SECTION 11.09.
	 	Governing Law; Venue	  	 	72	 
	 SECTION 11.10.
	 	No Recourse Against Others	  	 	73	 
	 SECTION 11.11.
	 	Successors	  	 	73	 
	 SECTION 11.12.
	 	Multiple Originals	  	 	73	 
	 SECTION 11.13.
	 	Table of Contents; Headings	  	 	73	 
	 SECTION 11.14.
	 	Severability Clause	  	 	73	 
	 SECTION 11.15.
	 	Calculations	  	 	73	 
	 SECTION 11.16.
	 	Waiver of Jury Trial	  	 	74	 
	 SECTION 11.17.
	 	FATCA	  	 	74	 

  

					
			
	Exhibit A	  	-	  	Form of Note
			
	Exhibit B	  	-  	  	Restricted Common Stock Legend

  

  
 iii 

 INDENTURE dated as of June 3, 2019 between INTERDIGITAL, INC., a Pennsylvania
corporation, as issuer (the “Company”), and THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., a national banking association organized under the laws of the United States, as trustee (the “Trustee”). 

WHEREAS, the Company has duly authorized the creation of an issue of its 2.00% Senior Convertible Notes due 2024 (the
“Notes”), having the terms, tenor, amount and other provisions hereinafter set forth, and, to provide therefor, the Company has duly authorized the execution and delivery of this Indenture; and 

WHEREAS, all things necessary to make the Notes, when the Notes are duly executed by the Company and authenticated and delivered hereunder and
duly issued by the Company, the valid obligations of the Company, and to make this Indenture a valid and binding agreement of the Company, in accordance with their and its terms, have been done and performed, and the execution of this Indenture and
the issue hereunder of the Notes have in all respects been duly authorized, 
 NOW, THEREFORE, THIS INDENTURE WITNESSETH: 

For and in consideration of the premises and the purchase of the Notes by the holders thereof, it is mutually covenanted and agreed, for the
equal and proportionate benefit of all holders of the Notes, as follows: 
 ARTICLE 1 

Definitions and Incorporation by Reference 

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. All other terms used in this Indenture that are defined in the Trust
Indenture Act or which are by reference therein defined in the Securities Act (except as herein otherwise expressly provided or unless the context otherwise requires) shall have the respective meanings assigned to such terms in the Trust Indenture
Act and in the Securities Act as in force at the date of the execution of this Indenture. 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 word “or” is not exclusive and the word “including” means including without limitation. The terms defined in this Article include the plural as well
as the singular. 
 “Additional Notes” has the meaning specified in Section 2.01. 

“Additional Shares” has the meaning specified in Section 10.03. 

“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 Person means the power to direct the management and policies of such Person, directly or indirectly,
whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the foregoing. 

 “Agent Members” has the meaning specified in Section 2.08(b)(vi). 

“Applicable Law” has the meaning specified in Section 11.17. 

“Averaging Period” has the meaning specified in Section 10.04(e). 

“Bankruptcy Law” has the meaning specified in Section 6.01. 

“Board of Directors” means the Board of Directors of the Company or any committee thereof duly authorized to act on behalf of
such Board. 
 “Business Day” means 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” of any Person means
any and all shares, interests, rights to purchase, warrants, options, participations or other equivalents of or interests in (however designated) equity of such Person, including any Preferred Stock, but excluding any debt securities convertible
into such equity. 
 “Cash Settlement” has the meaning set forth in Section 10.02(b). 

“Closing Sale Price” per share of the Common Stock or any other security for which a Closing Sale Price must be determined on
any Trading Date means: 
 (1) the closing sale price per share of the Common Stock or such other security (or if no closing
sale price is reported, the average of the closing bid and closing ask prices or, if more than one in either case, the average of the average closing bid and the average closing ask prices) on such date as reported in composite transactions for the
principal U.S. securities exchange on which the Common Stock or such other security is traded; 
 (2) if the Common Stock or
such other security is not listed on a U.S. national or regional securities exchange, the last quoted bid price for the Common Stock or such other security in the
over-the-counter market on such date as reported by Pink OTC Markets Inc. or a similar organization; or 

(3) if the Common Stock or such other security is not so quoted, as determined by a nationally recognized securities dealer
retained by the Company for that purpose. 
 The Closing Sale Price shall be determined without reference to early hours, after hours or
extended market trading. 
 “Combination Settlement” has the meaning set forth in Section 10.02(b). 

  
 2 

 “Common Equity” of any Person means Capital Stock of such Person that is
generally entitled (1) to vote in the election of directors of such Person or (2) 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, par value $0.01 per share, of the
Company, or such other capital stock into which the Company’s common stock is reclassified or changed pursuant to Section 10.05. 

“Company” means the party named as such in this Indenture until a successor replaces it and, thereafter, means the successor
and, for purposes of any provision contained herein and required by the Trust Indenture Act, each other obligor on the indenture securities. 

“Conversion Agent” means the agency appointed by the Company to which Notes may be presented for conversion. The Conversion
Agent appointed by the Company shall initially be the Trustee. 
 “Conversion Date” has the meaning specified in
Section 10.02(a). 
 “Conversion Notice” has the meaning specified in Section 10.02(a). 

“Conversion Obligation” has the meaning specified in Section 10.01. 

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

 “Conversion Rate” shall initially be 12.3018 shares of Common Stock per $1,000 principal amount of Notes, subject to
adjustment as provided in Article 10. 
 “Corporate Trust Office” or other similar term, means the designated office of the
Trustee at which at any particular time its corporate trust business as it relates to this Indenture shall be administered, which office is, at the date as of which this Indenture is dated, located at The Bank of New York Mellon Trust Company, N.A.,
500 Ross Street, 12th Floor, Pittsburgh, Pennsylvania 15262, Attention: Corporate Trust Administration or at any other time at such other address as the Trustee may designate from time to time by notice to the Company. 

“Custodian” has the meaning specified in Section 6.01. 

“Daily Conversion Value” means, for each of the 40 consecutive VWAP Trading Days during the Observation Period, 1/40th of the
product of: 
 (1) the Conversion Rate on such VWAP Trading Day, and 

(2) the Daily VWAP on such VWAP Trading Day. 

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

  
 3 

 “Daily Settlement Amount” for each of the 40 consecutive VWAP Trading Days
during the Observation Period, shall consist of: 
 (1) cash equal to the lesser of (A) the Daily Measurement Value and
(B) the Daily Conversion Value on such VWAP Trading Day; and 
 (2) if the Daily Conversion Value on such VWAP Trading
Day exceeds the Daily Measurement Value, a number of shares of Common Stock equal to (A) the difference between the Daily Conversion Value and the Daily Measurement Value, divided by (B) the Daily VWAP on 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 “IDCC <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 reasonably 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 will be determined without regard to after-hours trading or
any other trading outside of the regular trading session trading hours. 
 “declaration date” shall mean, with respect to a
distribution by the Company to all or substantially all of its holders of Common Stock, the date on which the distribution has been authorized by the Board of Directors under applicable law. 

“Default” means any event which is, or after notice or passage of time or both would be, an Event of Default. 

“Defaulted Interest” has the meaning specified in Section 2.13. 

“Depositary” means the clearing agency registered under the Exchange Act that is designated to act as the Depositary for the
Global Notes. DTC shall be the initial Depositary, 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. 

“Designated Institution” has the meaning specified in Section 10.11(a). 

“Dividend Threshold Amount” has the meaning specified in Section 10.04(d). 

“DTC” means The Depository Trust Company. 

“Effective Date” has the meaning specified in Section 10.03. 

“Event of Default” has the meaning specified in Section 6.01. 

  
 4 

 “Exchange Act” means the Securities Exchange Act of 1934, as amended, and
the rules and regulations of the SEC promulgated thereunder. 
 “Ex-Dividend 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, without the right to receive the issuance, dividend or distribution in question from the Company or, if
applicable, from the seller of the Common Stock on such exchange or market (in the form of due bills or otherwise) as determined by such exchange or market. 

“Expiration Date” has the meaning specified in Section 10.04(e). 

“Foreign Subsidiary” means any direct or indirect Subsidiary of the Company that is not organized under the laws of the
United States or any state thereof or the District of Columbia. 
 “Free Transferability Additional Interest” has the
meaning specified in Section 4.13(c). 
 “Freely Transferable” means, with respect to the Notes and the shares of
Common Stock issuable upon the conversion of the Notes, if any, that such Notes and shares of Common Stock, if any, (1) are eligible to be sold by a Person who has not been an Affiliate of the Company during the preceding three months without
any volume or manner of sale restrictions under the Securities Act, (2) do not bear a restricted security legend and (3) with respect to global securities only, are identified by an unrestricted CUSIP number in the facilities of the
applicable depositary. 
 “Fundamental Change” shall be deemed to have occurred when any of the following has occurred
prior to the Maturity Date: 
 (1) the consummation of any transaction (including, without limitation, any merger or
consolidation) the result of which is that any “person” becomes the “beneficial owner” (as these terms are defined in Rule 13d-3 and Rule 13d-5 under
the Exchange Act), directly or indirectly, of more than 50% of the Company’s Capital Stock that is at the time entitled to vote by the holder thereof in the election of the Board of Directors (or comparable body); or 

(2) the adoption of a plan relating to the Company’s liquidation or dissolution; or 

(3) the consummation of (A) any recapitalization, reclassification or change of the Common Stock as a result of which the
Common Stock would be converted into, or exchanged for cash, securities or other property or assets; (B) any share exchange, consolidation or merger involving the Company pursuant to which the Common Stock will be converted into cash,
securities or other property or assets; or (C) any sale, lease, transfer, conveyance or other disposition, in one or a series of related transactions, of all or substantially all of the consolidated assets of the Company and its Subsidiaries,
taken as a whole, to any Person other than one or more of the Company’s direct or indirect Subsidiaries; provided, however, that a transaction described in clause (A) or (B) in which the holders of all classes of
the Company’s Common Equity immediately prior to 

  
 5 

 such transaction own, directly or indirectly, more than 50% of all classes of Common Equity
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 (3); or 
 (4) the Common Stock or other common stock based on which the Notes are convertible is
neither listed for trading on the NASDAQ Global Market, the NASDAQ Global Select Market or The New York Stock Exchange (or any of their respective successors); 

provided, however, that any transaction or event described above shall not constitute a Fundamental Change if, in connection with
such transaction or event, or as a result therefrom, a transaction described in clause (1) or (3) above occurs and at least 90% of the consideration paid for the Common Stock (excluding cash payments for fractional shares and cash payments made
pursuant to dissenters’ appraisal rights) consists of shares of common stock traded on any of the NASDAQ Global Market, the NASDAQ Global Select Market or The New York Stock Exchange (or any of their respective successors) (or shall be so
traded or quoted immediately following the completion of the merger or consolidation or such other transaction) and, as a result of such transaction, the Notes become convertible into a combination of cash (in respect of an amount up to and
including, the principal portion of such Notes) and Reference Property comprised of such consideration as described under Section 10.05. Any transaction that constitutes a Fundamental Change under both clause (1) and clause (3) (without
giving effect to the proviso in clause (3) above) shall be deemed a Fundamental Change solely under clause (3) of such definition (subject to the proviso to clause (3)). 

“Fundamental Change Company Notice” has the meaning specified in Section 3.01(b). 

“Fundamental Change Repurchase Date” has the meaning specified in Section 3.01(a). 

“Fundamental Change Repurchase Expiration Time” has the meaning specified in Section 3.01(a)(1). 

“Fundamental Change Repurchase Notice” has the meaning specified in Section 3.01(a)(1). 

“Fundamental Change Repurchase Price” has the meaning specified in Section 3.01(a). 

“GAAP” means generally accepted accounting principles in the United States of America set forth in (1) the opinions and
pronouncements of the Accounting Principles Board of the American Institute of Certified Public Accountants, (2) statements and pronouncements of the Financial Accounting Standards Board, (3) in such other statement by such other entity as
have been approved by a significant segment of the accounting profession. 

  
 6 

 “Global Note Legend” is as set forth in Exhibit A. 

“Global Notes” has the meaning specified in Section 2.02. 

“Holder” means the Person in whose name a Note is registered on the Registrar’s books. 

“Indebtedness” means, with respect to any Person, any indebtedness of that Person, whether or not contingent, in respect of
borrowed money or evidenced by bonds, debentures or similar instruments or letters of credit (or reimbursement agreements in respect thereof) or bankers acceptances if and to the extent any of the foregoing indebtedness (other than letters of
credit) would appear as a liability upon a balance sheet of such Person prepared in accordance with GAAP, as well as all indebtedness of others secured by a lien on any assets of such Person (whether or not such indebtedness is assumed by such
Person) and, to the extent not otherwise included, the guarantee by such Person of any Indebtedness of any other Person; provided, however, that Indebtedness shall not include (1) any intercompany Indebtedness or (2) any
trade payables. 
 “Indenture” means this Indenture as amended or supplemented from time to time. 

“Initial Purchasers” means Barclays Capital Inc., Credit Suisse Securities (USA) LLC, Stifel, Nicolaus & Company,
Incorporated, B. Riley & Co., LLC, Dougherty & Company LLC and Roth Capital Partners, LLC. 
 “interest”
means, when used with reference to the Notes, any interest payable under the terms of the Notes, including Defaulted Interest, if any, Rule 144 Additional Interest, if any, Reporting Additional Interest, if any, and Free Transferability Additional
Interest, if any. 
 “Interest Payment Date” has the meaning specified in Section 2.03(c). 

“Market Disruption Event” means, if the Common Stock is listed for trading on the NASDAQ Global Select Market or another U.S.
national or regional securities exchange, the occurrence or existence during the one-half hour period ending on the scheduled close of trading on any Trading Day 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 future contracts relating to the Common Stock. 

“Maturity Date” means June 1, 2024. 

“Merger Common Stock” has the meaning specified in Section 10.05. 

“Merger Event” has the meaning specified in Section 10.05. 

“Merger Valuation Percentage” has the meaning specified in Section 10.05. 

“Merger Valuation Period” has the meaning specified in Section 10.05. 

  
 7 

 “Non-U.S. Holder” means a Holder
that is not treated as a United States person for U.S. federal income tax purposes as defined under Section 7701(a)(30) of the Internal Revenue Code of 1986, as amended from time to time. 

“Non-Stock Change of Control” has the meaning specified in Section 10.03. 

“Notes” means any Notes issued, authenticated and delivered under this Indenture, including any Global Notes. 

“Notice of Default” has the meaning specified in Section 6.01. 

“Observation Period” means, with respect to any Note surrendered for conversion: 

(1) if the relevant Conversion Date occurs prior to March 1, 2024, the 40 Consecutive VWAP Trading Day period beginning on, and including,
second VWAP Trading Day immediately succeeding such Conversion Date; or 
 (2) if the relevant Conversion Date occurs on or after
March 1, 2024, the 40 Consecutive VWAP Trading Day period beginning on, and including, the 41st Scheduled Trading Day immediately preceding the Maturity Date. 

“Officer” means the Chairman of the Board, the Chief Executive Officer, the Chief Financial Officer, the President, any Vice
President, the Controller, the General Counsel, the Treasurer, any Assistant Treasurer, the Secretary or any Assistant Secretary of the Company. 

“Officers’ Certificate” means a certificate signed by two Officers. One of the Officers executing an Officers’
Certificate in accordance with Section 4.06 shall be the Chief Executive Officer, Chief Financial Officer or General Counsel of the Company. 

“Opinion of Counsel” means a written opinion, acceptable to the Trustee, from legal counsel. The counsel may be an employee
of or counsel to the Company. 
 “Paying Agent” has the meaning specified in Section 2.05. 

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

“Physical Settlement” has the meaning set forth in Section 10.02(b). 

“Preferred Stock”, as applied to the Capital Stock of any Person, means Capital Stock of any class or classes (however
designated) that is preferred as to the payment of dividends, or as to the distribution of assets upon any voluntary or involuntary liquidation or dissolution of such Person, over shares of Capital Stock of any other class of such Person. 

“Preliminary Offering Memorandum” means the preliminary offering memorandum, dated May 29, 2019, relating to the
offering and sale by the Issuer of the Notes.

  
 8 

 “protected purchaser” has the meaning specified in Section 2.09. 

“Record Date” means, in respect of a dividend or distribution to holders of Common Stock, the date fixed for determination of
holders of Common Stock entitled to receive such dividend or distribution. 
 “Reference Property” has the meaning
specified in Section 10.05. 
 “Register” has the meaning specified in Section 2.05. 

“Registrar” has the meaning specified in Section 2.05. 

“Regular Record Date” means, with respect to any Interest Payment Date of the Notes, the May 15 and November 15
preceding the applicable June 1 and December 1 Interest Payment Date, respectively. 
 “Reporting Additional
Interest” has the meaning specified in Section 6.13. 
 “Resale Restriction Termination Date” has the meaning
specified in Section 2.08(d). 
 “Responsible Officer” means, when used with respect to the Trustee, any officer
within the corporate trust department of the Trustee, including any vice president, assistant vice president, assistant secretary, senior associate, associate, 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 who shall
have direct responsibility for the administration of this Indenture. 
 “Restricted Common Stock Legend” is as set forth in
Exhibit B. 
 “Restricted Note Legend” is as set forth in Exhibit A. 

“Restricted Securities” has the meaning specified in Section 2.08(c). 

“Rule 144 Additional Interest” means all amounts, if any, payable pursuant to Section 4.12. 

“Rule 144A” means Rule 144A as promulgated under the Securities Act as it may be amended from time to time hereafter. 

“Schedule TO” means a Tender Offer Statement under Section 14(d)(1) or 13(e)(1) of the Exchange Act. 

“Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the primary U.S. national 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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 “SEC” means the Securities and Exchange Commission. 

“Securities Act” means the Securities Act of 1933, as amended. 

“Settlement Amount” has the meaning set forth in Section 10.02(b)(iv). 

“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. 
 “Significant Subsidiary” with respect to any
Person means any Subsidiary of such Person that constitutes a “significant subsidiary” within the meaning of Rule 1-02(w) under Regulation S-X under the
Exchange Act. 
 “Special Interest Payment Date” has the meaning specified in Section 2.13(a). 

“Special Record Date” has the meaning specified in Section 2.13(a). 

“Specified Dollar Amount” means the maximum cash amount per $1,000 principal amount of Notes to be received upon conversion
as specified in the notice specifying the Company’s chosen Settlement Method or otherwise deemed specified. 
 “Spin-off” has the meaning specified in Section 10.04(c). 
 “Stock Price”
means, with respect to any Non-Stock Change of Control: 
 (1) if holders of the
Common Stock receive only cash in such Non-Stock Change of Control, the cash amount paid per share; or 

(2) otherwise, the average of the Closing Sale Prices of the Common Stock over the five Trading Day period ending on, and
including, the Trading Day immediately preceding the Effective Date of such Non-Stock Change of Control. 

“Subsidiary” of any Person means 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 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” has the meaning specified in Section 5.01(a). 

“Trading Day” means a day on which: 

(1) 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 traded; and 
 (2) there is no Market Disruption Event. 

  
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 If the Common Stock 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 per $1,000
principal amount of Notes obtained by the Company for $5,000,000 principal amount of the Notes at approximately 3:30 p.m., New York City time, on such determination date from two independent nationally recognized securities dealers selected by the
Company, which may include the Initial Purchasers; provided that if at least two such bids cannot reasonably be obtained by the Company, but one such bid can reasonably be obtained by the Company, this one bid shall be used. If the Company
cannot reasonably obtain at least one bid for $5,000,000 principal amount of the Notes from a nationally recognized securities dealer or, in the Company’s reasonable judgment, the bid quotations are not indicative of the secondary market value
of the Notes, then, for purposes of the Trading Price conversion contingency described in Section 10.01(4) only, the Trading Price of the Notes shall be deemed to be less than 98% of the product of the Closing Sale Price of the Common Stock and
the Conversion Rate on such Trading Day. If the Company does not so obtain bids when required (as described in Section 10.01(4)), the Trading Price per $1,000 principal amount of the Notes shall be deemed to be less than 98% of the product of
the Closing Sale Price of the Common Stock and the Conversion Rate on each day the Company fails to do so. 
 “Trigger
Event” has the meaning specified in Section 10.04(b). 
 “Trust Indenture Act” means the Trust Indenture Act
of 1939, as amended. 
 “Trustee” means the party named as such in this Indenture until a successor replaces it and,
thereafter, means the successor. 
 “Uniform Commercial Code” means the New York Uniform Commercial Code as in effect from
time to time. 
 “Valuation Period” has the meaning specified in 10.04(c). 

“VWAP Trading Day” means a day on which: 

(1) there is no VWAP Market Disruption Event; and 

(2) trading in the Common Stock generally occurs on the relevant stock exchange; 

provided that if the Common Stock is not listed on any U.S. national or regional securities exchange, “VWAP trading day” means a
“business day.” 
 “Wholly Owned Subsidiary” means a Subsidiary of the Company, all the Capital Stock of which
(other than directors’ qualifying shares) is owned by the Company or another Wholly Owned Subsidiary. 

  
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 ARTICLE 2 

The Notes 
 SECTION 2.01.
Designation, Amount and Issuance of Notes. The Notes shall be designated as “2.00% Senior Convertible Notes due 2024.” The Notes shall not exceed the aggregate principal amount of $400,000,000 (except pursuant to this Section and
Sections 2.09 and 2.11). Upon the execution of this Indenture, or from time to time thereafter, Notes may be executed by the Company and delivered to the Trustee for authentication. 

The Company may, without the consent of Holders, issue additional Notes hereunder in the future on the same terms and conditions of the Notes
issued hereunder, except for any differences in the issue price and interest accrued prior to the issue date of the additional Notes (such additional Notes, the “Additional Notes”); provided that if any Additional Notes
constitute a different class of securities than the Notes for U.S. federal income tax purposes, such Additional Notes will be issued with a separate CUSIP number and ISIN. The Notes initially issued hereunder and any such Additional Notes shall rank
equally and ratably and shall be treated as a single series for all purposes under this Indenture. The Company may not issue any Additional Notes if any Event of Default has occurred with respect to the Notes. 

SECTION 2.02. Form of the Notes. The Notes and the Trustee’s certificate of authentication to be borne by such Notes shall be
substantially in the form set forth in Exhibit A hereto. The terms and provisions contained in the form of Notes attached as Exhibit A hereto shall constitute, and are hereby expressly made, a part of this Indenture and, 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 of the Notes may have such letters, numbers or other marks of identification and such notations, legends, endorsements or changes 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 by the custodian for the Global Notes or the Depositary
or as may be required for the Notes to be tradable on any market developed for trading of securities pursuant to Rule 144A or as may be required to comply with any applicable 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 to conform to usage, or to indicate any special limitations or restrictions to which any particular Notes are subject. 

So long as the Notes are eligible for book-entry settlement with the Depositary, or unless otherwise required by law, or otherwise
contemplated by Section 2.08(b) or Section 2.08(d), all of the Notes shall be evidenced by one or more Notes in global form registered in the name of the Depositary or the nominee of the Depositary (the “Global Notes”).
The transfer and exchange of beneficial interests in any such Global Notes shall be effected through the Depositary in accordance with this Indenture and the applicable procedures of the Depositary. Except as provided in Section 2.08(b) or
Section 2.08(d), beneficial owners of a Global Note shall not be entitled to have certificates registered in their names, shall not receive or be entitled to receive physical delivery of certificates in definitive registered form and shall not
be considered holders of such Global Note. 

  
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 Any Global Notes shall represent such of the outstanding Notes as shall be specified therein
and shall provide that it shall represent the aggregate amount of outstanding Notes from time to time endorsed thereon and that the aggregate amount of outstanding Notes represented thereby may from time to time be increased or reduced on the books
and records of the Depositary and Trustee to reflect repurchases, 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 for the Global Note, at the direction of the Trustee, in such manner and upon instructions given by the holder of such Notes in accordance with this Indenture. Payment of principal of and any
interest on any Global Notes shall be made to the Depositary in immediately available funds. 
 SECTION 2.03. Date and Denomination of
Notes; Payment at Maturity; Payment of Interest. 
 (a) Date and Denomination. The Notes shall be issuable in registered form
without coupons in denominations of $1,000 principal amount and 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 Notes. 

(b) Payment at Maturity. Each Holder shall be entitled to receive on the Maturity Date, per $1,000 principal amount of Notes, $1,000 in
cash, together with accrued and unpaid interest thereon to, but excluding, the Maturity Date, unless such Note is earlier converted or repurchased. With respect to Global Notes, principal and any interest shall be paid to the Depositary in
immediately available funds. With respect to any certificated Notes, principal and any interest shall be payable at the Company’s office or agency, which initially shall be the office or agency of the Trustee located at The Bank of New York
Mellon Trust Company, N.A., 500 Ross Street, 12th Floor, Pittsburgh, Pennsylvania 15262, Attention: Corporate Trust Administration. If the Maturity Date is not a Business Day, payment shall be made on the next succeeding Business Day, and no
additional interest shall be accrue thereon. 
 (c) Payment of Interest. Interest on the Notes shall accrue at the rate of 2.00% per
annum from June 3, 2019 or from the most recent date to which interest has been paid or duly provided for. Interest shall be payable in arrears on June 1 and December 1 of each year (each, an “Interest Payment Date”),
commencing December 1, 2019, to the Person in whose name any Note is registered as it appears on the Register at 5:00 p.m., New York City time, on the applicable Regular Record Date. 

Interest on the Notes shall be calculated on the basis of a 360-day year consisting of twelve 30-day months. 
 The Company shall pay interest on: 

(1) any Global Notes to the Depositary in immediately available funds; and 

  
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 (2) any Notes in certificated form by wire transfer in immediately available
funds at the election of the Holder of such Notes duly delivered to the Trustee at least five Business Days prior to the relevant Interest Payment Date. 

If an Interest Payment Date is not a Business Day, payment shall be made on the next succeeding Business Day, and no additional interest shall
accrue thereon. 
 SECTION 2.04. Execution and Authentication. One Officer shall sign the Notes for the Company by manual or
facsimile signature. If an Officer whose signature is on a Note no longer holds that office at the time the Trustee authenticates the Note, the Note shall be valid nevertheless. 

A Note shall not be valid until an authorized signatory of the Trustee manually authenticates the Note. Upon the written order of the Company
signed by an Officer, the Trustee shall authenticate a Note executed by the Company. The signature of the Trustee on the Note shall be conclusive evidence that the Note has been duly and validly authenticated under this Indenture. 

The Trustee may appoint an authenticating agent reasonably acceptable to the Company to authenticate the Notes. Any such appointment shall be
evidenced by an instrument signed by a Responsible Officer, a copy of which shall be furnished to the Company. Unless limited by the terms of such appointment, an authenticating agent may authenticate Notes whenever the Trustee may do so. Each
reference in this Indenture to authentication by the Trustee includes authentication by such agent. An authenticating agent has the same rights as any Registrar, Paying Agent or agent for service of notices and demands. 

SECTION 2.05. Registrar and Paying Agent. The Company shall maintain an office or agency where Notes may be presented for registration
of transfer or for exchange (the “Registrar”) and an office or agency where Notes may be presented for payment (the “Paying Agent”). The Corporate Trust Office shall be considered as one such office or agency of the
Company for each of the aforesaid purposes. The Registrar shall keep a register of the Notes (the “Register”) and of their transfer and exchange. The Company may have one or more co-registrars
and one or more additional paying agents. The term “Paying Agent” includes any additional paying agent, and the term “Registrar” includes any co-registrars. The Company initially appoints
the Trustee as (i) Registrar and Paying Agent in connection with the Notes and (ii) Conversion Agent. 
 The Company shall enter
into an appropriate agency agreement with any Registrar or Paying Agent not a party to this Indenture. The agreement shall implement the provisions of this Indenture that relate to such agent. The Company shall notify the Trustee of the name and
address of any such agent. If the Company fails to maintain a Registrar or Paying Agent, the Trustee shall act as such and shall be entitled to appropriate compensation therefor pursuant to Section 7.07. The Company or any of its Wholly Owned
Subsidiaries that is not a Foreign Subsidiary may act as Paying Agent or Registrar. 

  
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 The Company may remove any Registrar or Paying Agent upon written notice to such Registrar
or Paying Agent and to the Trustee; provided, however, that no such removal shall become effective until (1) acceptance of an appointment by a successor as evidenced by an appropriate agreement entered into by the Company and such
successor Registrar or Paying Agent, as the case may be, and delivered to the Trustee or (2) notification to the Trustee that the Trustee shall serve as Registrar or Paying Agent until the appointment of a successor in accordance with clause
(1) above. The Registrar or Paying Agent may resign at any time upon written notice; provided, however, that the Trustee may resign as Paying Agent or Registrar only if the Trustee also resigns as Trustee in accordance with
Section 7.08. 
 SECTION 2.06. Paying Agent to Hold Money in Trust. Prior to 10:00 a.m., New York City time, on the Maturity
Date, each Interest Payment Date, any Fundamental Change Repurchase Date and any settlement date of a Conversion Obligation, the Company shall deposit with the Paying Agent (or if the Company or a Wholly Owned Subsidiary of the Company is acting as
Paying Agent, segregate and hold in trust for the benefit of the Persons entitled thereto) a sum sufficient to pay such amounts owed on such dates. The Company shall require each Paying Agent (other than the Trustee) to agree in writing that the
Paying Agent shall hold in trust for the benefit of Holders or the Trustee all money held by the Paying Agent for the payment of amounts owed on such dates and shall notify the Trustee of any Default by the Company in making any such payment. If the
Company or a Wholly Owned Subsidiary of the Company acts as Paying Agent, it shall segregate the money held by it as Paying Agent and hold it as a separate trust fund. The Company at any time may require a Paying Agent to pay all money held by it to
the Trustee and to account for any funds disbursed by the Paying Agent. Upon complying with this Section, the Paying Agent shall have no further liability for the money delivered to the Trustee. 

SECTION 2.07. Holder Lists. The Trustee shall preserve in as current a form as is reasonably practicable the most recent list available
to it of the names and addresses of Holders and shall otherwise comply with Section 312(a) of the Trust Indenture Act. If the Trustee is not the Registrar, or to the extent otherwise required under the Trust Indenture Act, the Company shall
furnish, or cause the Registrar to furnish, to the Trustee, in writing at least five Business Days before each Interest Payment Date and at such other times as the Trustee may request in writing, a list in such form and as of such date as the
Trustee may reasonably require of the names and addresses of Holders and the Company shall otherwise comply with Section 312(a) of the Trust Indenture Act. 

SECTION 2.08. Exchange and Registration of Transfer of Notes; Restrictions on Transfer. 

(a) The Company shall cause to be kept at the Corporate Trust Office the 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. The Register shall be in written form or in any form capable of being converted into written form within a reasonably prompt period
of time. 
 Upon surrender for registration of transfer of any Notes to the Registrar or any
co-registrar, and satisfaction of the requirements for such transfer set forth in this Section 2.08, 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. 

  
 15 

 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. 

All Notes issued upon any registration of transfer or exchange of Notes shall be the valid 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. 

All Notes presented or surrendered for registration of transfer or for exchange, repurchase or conversion shall (if so required by the Company
or the Registrar) be duly endorsed, or be accompanied by a written instrument or instruments of transfer in form satisfactory to the Company, and the Notes shall be duly executed by the holder thereof or his attorney duly authorized in writing. 

No service charge shall be made to any holder for any registration of, transfer or exchange of Notes, but the Company or the Trustee may
require payment by the holder of a sum sufficient to cover any tax, assessment or other governmental charge that may be imposed in connection with any registration of transfer or exchange of Notes. 

Neither the Company nor the Trustee nor any Registrar shall be required to exchange, issue or register a transfer of (a) any Note or
portions thereof surrendered for conversion pursuant to Article 10 or (b) any Note or portions thereof tendered for repurchase (and not withdrawn) pursuant to Article 3. 

(b) The following provisions shall apply only to Global Notes: 

(i) Each Global Note authenticated under this Indenture shall be registered in the name of the Depositary or a nominee thereof
and delivered to such Depositary or a nominee thereof or custodian for the Global Notes therefor, and each such Global Note shall constitute a single Note for all purposes of this Indenture. 

(ii) Notwithstanding any other provision in this Indenture, no Global Note may be exchanged in whole or in part for Notes
registered, and no transfer of a Global Note in whole or in part may be registered, in the name of any Person other than the Depositary or a nominee thereof unless: 

(A) the Depositary has notified the Company that it is unwilling or unable to continue as Depositary for such Global Note and a
successor Depositary has not been appointed within 60 days; 

  
 16 

 (B) the Depositary has ceased to be registered as a clearing agency under
the Exchange Act and a successor Depositary has not been appointed within 60 days; or 
 (C) an Event of Default with respect
to the Notes has occurred and is continuing and such beneficial owner requests that its Notes be issued in physical, certificated form. 

(iii) In addition, certificated Notes shall be issued in exchange for beneficial interests in a Global Note upon request by or
on behalf of the Depositary in accordance with customary procedures following the request of a beneficial owner seeking to enforce its rights under the Notes or this Indenture, including its rights following the occurrence of an Event of Default.

 (iv) Notes issued in exchange for a Global Note or for any portion of a Global Note pursuant to clause (ii) or (iii)
above shall be issued in definitive, fully registered form, without interest coupons, shall have an aggregate principal amount equal to that of such Global Notes or portion thereof to be so exchanged, shall be registered in such names and be in such
authorized denominations as the Depositary shall designate and shall bear any legends required hereunder. Any Global Notes to be exchanged shall be surrendered by the Depositary to the Trustee, as Registrar; provided that pending completion
of the exchange of a Global Note, the Trustee acting as custodian for the Global Notes for the Depositary or its nominee with respect to such Global Notes, shall reduce the principal amount thereof, by an amount equal to the portion thereof to be so
exchanged, by means of an appropriate adjustment made on the books and records of the Trustee. Upon any such surrender or adjustment, the Trustee shall authenticate and make available for delivery the Notes issuable on such exchange to or upon the
written order of the Depositary or an authorized representative thereof. 
 (v) In the event of the occurrence of any of the
events specified in clause (ii) above or upon any request described in clause (iii) above, the Company shall promptly make available to the Trustee a sufficient supply of certificated Notes in definitive, fully registered form, without
interest coupons. 
 (vi) Neither any members of, or participants in, the Depositary (the “Agent Members”)
nor any other Persons on whose behalf Agent Members may act shall have any rights under this Indenture with respect to any Global Notes registered in the name of the Depositary or any nominee thereof, and the Depositary or such nominee, as the case
may be, may be treated by the Company, the Trustee and any agent of the Company or the Trustee as the absolute owner and holder of such Global Notes for all purposes whatsoever. Notwithstanding the foregoing, nothing herein shall prevent the
Company, the Trustee or any agent of the Company or the Trustee from giving effect to any written certification, proxy or other authorization furnished by the Depositary or such nominee, as the case may be, or impair, as between the Depositary, its
Agent Members and any other Person on whose behalf an Agent Member may act, the operation of customary practices of such Persons governing the exercise of the rights of a holder of any Notes. 

  
 17 

 (vii) At such time as all interests in a Global Note have been repurchased,
converted, cancelled or exchanged for Notes in certificated form, such Global Note shall, upon receipt thereof, be canceled by the Trustee in accordance with standing procedures and instructions existing between the Depositary and the custodian for
the Global Note. At any time prior to such cancellation, if any interest in a Global Note is repurchased, converted, cancelled or exchanged for Notes in certificated form, the principal amount of such Global Note shall, in accordance with the
standing procedures and instructions existing between the Depositary and the custodian for the Global Note, be appropriately reduced, and an endorsement shall be made on such Global Note, by the Trustee or the custodian for the Global Note, at the
direction of the Trustee, to reflect such reduction. 
 (c) Every Note (and all securities issued in exchange therefor or in substitution
thereof) that bears or is required under this Section 2.08(c) to bear the Restricted Note Legend (together with any Common Stock issued upon conversion of the Notes and required to bear the Restricted Common Stock Legend, collectively, the
“Restricted Securities”) shall be subject to the restrictions on transfer set forth in this Section 2.08(c) (including those set forth in the Restricted Note Legend and the Restricted Common Stock Legend) unless such
restrictions on transfer shall be waived by written consent of the Company following receipt of legal advice supporting the permissibility of the waiver of such transfer restrictions, and 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 2.08(c), the term “transfer” means any sale, pledge, loan, transfer or other disposition whatsoever of any Restricted
Security or any interest therein. 
 (d) Until the date (the “Resale Restriction Termination Date”) that is the later of
(1) the date that is one year after the last date of the original issuance of the Notes, or such shorter period of time as permitted by Rule 144 under the Securities Act or any successor provision thereunder, and (2) such later date, if
any, as may be required by applicable laws, any certificate evidencing a Restricted Security shall bear the Restricted Note Legend (or in the case of Common Stock issued upon conversion of the Notes, the Restricted Common Stock Legend), unless such
Restricted Security has been sold pursuant to a registration statement that has been declared effective under the Securities Act (and which continues to be effective at the time of such transfer) or sold pursuant to Rule 144 under the
Securities Act or any similar provision then in force, or unless otherwise agreed by the Company in writing as set forth above, with written notice thereof to the Trustee. If, prior to the Resale Restriction Termination Date, an Affiliate of the
Company beneficially owns an interest in a Global Note, the Company may require such Person to hold its interest in the Notes in certificated form bearing the Restricted Notes Legend and a restricted CUSIP number. 

(e) In connection with any transfer of the Notes prior to the Resale Restriction Termination Date, the holder must complete and deliver the
form of assignment set forth on the certificate representing the Note, with the appropriate box checked, to the Trustee (or any successor Trustee, as applicable). 

  
 18 

 Any Notes that are Restricted Securities and as to which such restrictions on transfer shall
have expired in accordance with their terms or as to conditions for removal of the Restricted Note Legend set forth therein have been satisfied may, upon surrender of such Notes for exchange to the Registrar in accordance with the provisions of this
Section 2.08, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall not bear the restrictive legend required by Section 2.08(c). If such Restricted Security surrendered for exchange is represented
by a Global Note bearing the Restricted Note Legend, the principal amount of the legended Global Notes shall be reduced by the appropriate principal amount and the principal amount of a Global Note without a Restricted Note Legend shall be increased
by an equal principal amount. If a Global Note without the Restricted Note Legend is not then outstanding, the Company shall execute and the Trustee shall authenticate and deliver an unlegended Global Note to the Depositary. The Company shall notify
the Trustee in writing upon the occurrence of the Resale Restriction Termination Date and, if applicable, promptly after a registration statement with respect to the Notes or any Common Stock issued upon conversion of the Notes has been declared
effective under the Securities Act. 
 Any Common Stock issued upon conversion of the Notes 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 Restricted Common Stock Legend. 

(f) The Trustee shall have no responsibility or obligation to any Agent Members or any other Person with respect to the accuracy of the books
or records, or the acts or omissions, of the Depositary or its nominee or of any participant or member thereof, with respect to any ownership interest in the Notes or with respect to the delivery to any Agent Member or other Person (other than the
Depositary) of any notice or the payment of any amount, under or with respect to such Notes. All notices and communications to be given to the holders of Notes and all payments to be made to holders of Notes under the Notes shall be given or made
only to or upon the order of the registered holders of Notes (which shall be the Depositary or its nominee in the case of a Global Note). The rights of beneficial owners in any Global Notes shall be exercised only through the Depositary subject to
the customary procedures of the Depositary. The Trustee may rely and shall be fully protected in relying upon information furnished by the Depositary with respect to its Agent Members. 

(g) 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 Notes (including any transfers between or among Agent Members) other than to require delivery of such certificates and other documentation or evidence
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. 

  
 19 

 SECTION 2.09. Replacement Notes. If a mutilated Note is surrendered to the Registrar
or if the Holder claims that the Note has been lost, destroyed or wrongfully taken, the Company shall issue and the Trustee shall authenticate a replacement Note if the Holder takes the following actions and satisfies the requirements of Section 8-405 of the Uniform Commercial Code: 
 (i) notifies the Company or the
Trustee within a reasonable time after he has notice of such loss, destruction or wrongful taking and prior to the Registrar registering a transfer of such Note; 

(ii) makes a request to the Company or the Trustee for a replacement Note prior to the Note being acquired by a protected
purchaser as defined in Section 8-303 of the Uniform Commercial Code (a “protected purchaser”); and 

(iii) satisfies any other reasonable requirements of the Trustee. 

If required by the Trustee or the Company, such Holder shall furnish an indemnity bond sufficient in the judgment of the Trustee to protect
the Company, the Trustee, the Paying Agent and the Registrar from any loss, expense, claim or liability that any of them may suffer if a Note is replaced and subsequently presented or claimed for payment. The Company and the Trustee may charge the
Holder for their expenses in replacing a Note. In case any Note which has matured or is about to mature or has been validly tendered for repurchase on a Fundamental Change Repurchase Date (and not validly withdrawn), or is to be converted, shall
become mutilated or be destroyed, lost or stolen, the Company may, instead of issuing a substitute Note, pay or authorize the payment of 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 in connection with such substitution, and, in every case of destruction, loss or theft, the applicant shall also furnish to the Company, the Trustee and, if applicable, any Paying Agent
or Conversion Agent evidence to their satisfaction of the destruction, loss or theft of such Notes and of the ownership thereof. 
 Every
replacement Note is an additional obligation of the Company. 
 The provisions of this Section 2.09 are exclusive and shall preclude
(to the extent lawful) all other rights and remedies with respect to the replacement or payment of mutilated, lost, destroyed or wrongfully taken Notes. 

SECTION 2.10. Outstanding Notes. Notes outstanding at any time are all Notes authenticated by the Trustee except for those canceled by
it, those delivered to it for cancellation and those described in this Section as not outstanding. A Note does not cease to be outstanding because the Company or an Affiliate of the Company holds the Note. 

If a Note is replaced pursuant to Section 2.09, it ceases to be outstanding unless the Trustee and the Company receive proof satisfactory
to them that the replaced Note is held by a protected purchaser. 

  
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 If the Paying Agent segregates and holds in trust, in accordance with this Indenture, on a
Fundamental Change Repurchase Date or Maturity Date money sufficient to pay all principal and interest payable on that date with respect to the Notes (or portions thereof) to be repurchased or maturing, as the case may be, and the Paying Agent is
not prohibited from paying such money to the Holders on that date pursuant to the terms of this Indenture, then on and after that date such Notes (or portions thereof) cease to be outstanding and interest on them ceases to accrue. 

In determining whether the Holders of the required principal amount of Notes have concurred in any direction, waiver or consent, Notes owned
by the Company shall be considered as though not outstanding; provided that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, waiver of consent, only Notes that the Trustee actually knows are so
owned shall be so disregarded. The Company agrees to notify the Trustee of the existence of any Notes owned by the Company. 
 SECTION 2.11.
Temporary Notes. Pending the preparation of Notes in certificated form, the Company may execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon the written request of the Company, authenticate and deliver
temporary Notes (printed or lithographed). Temporary Notes shall be issuable in any authorized denomination, and substantially in the form of the Notes in certificated form, 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 Notes 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 Notes in certificated form. Without unreasonable delay, the Company shall execute and deliver to the Trustee or such authenticating agent Notes in certificated form and thereupon any or all temporary Notes 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 make available for delivery in exchange for such temporary Notes
an equal aggregate principal amount of Notes in certificated form. 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 Notes in certificated form authenticated and delivered hereunder. 

SECTION 2.12. Cancellation. The Company at any time may deliver Notes to the Trustee for cancellation. The Registrar, the Paying Agent
and the Conversion Agent shall forward to the Trustee any Notes surrendered to them for registration of transfer, exchange, payment or conversion. The Trustee and no one else shall cancel all Notes surrendered for registration of transfer, exchange,
payment, conversion or cancellation in accordance with its customary procedures. The Company may not issue new Notes to replace Notes it has paid or delivered to the Trustee for cancellation or that any Holder has converted pursuant to Article 10.

 The Company may, to the extent permitted by law, repurchase any Notes in the open market or by tender offer at any price or by private
agreement. The Company may, at its option, surrender any Notes repurchased by it to the Trustee for cancellation, but may not reissue or resell such Notes. Any Notes surrendered to the Trustee for cancellation may not be reissued or resold and shall
be promptly cancelled. 

  
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 SECTION 2.13. Defaulted Interest. Any interest on any Note which is payable, but is
not paid when the same becomes due and payable and such nonpayment continues for a period of 30 calendar days, shall forthwith cease to be payable to the Holder on the Regular Record Date, and such defaulted interest and interest (to the extent
lawful) on such defaulted interest at the annual rate borne by the Notes (such defaulted interest and interest thereon herein collectively called “Defaulted Interest”) shall be paid by the Company at its election, in each case, as
provided in clause (a) or (b) below: 
 (a) The Company may elect to make payment of any Defaulted Interest to the Persons in whose
names the Notes (or their respective predecessor Notes) are registered at 5:00 p.m., New York City time, on a Special Record Date (as defined below) for the payment of such Defaulted Interest, which shall be fixed in the following manner. The
Company shall notify the Trustee in writing of the amount of Defaulted Interest proposed to be paid on each Note and the date (not less than 30 calendar days after such notice) of the proposed payment (the “Special Interest Payment
Date”), and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount proposed to be paid in respect of such Defaulted Interest or shall make arrangements satisfactory to the Trustee for
such deposit 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 Interest as in this clause provided. Thereupon the Trustee shall fix a record date (the
“Special Record Date”) for the payment of such Defaulted Interest which shall be not more than fifteen calendar days and not less than ten calendar days prior to the Special Interest Payment Date and not less than ten calendar days
after the receipt by the Trustee of the notice of the proposed payment. The Trustee shall promptly notify the Company of such Special Record Date, and in the name and at the expense of the Company, shall promptly cause notice of the proposed payment
of such Defaulted Interest and the Special Record Date and Special Interest Payment Date therefor to be given to each Holder, not less than ten calendar days prior to such Special Record Date. Notice of the proposed payment of such Defaulted
Interest and the Special Record Date and Special Interest Payment Date therefor having been so given, such Defaulted Interest shall be paid on the Special Interest Payment Date to the Persons in whose names the Notes (or their respective predecessor
Notes) are registered at 5:00 p.m., New York City time, on such Special Record Date and shall no longer be payable pursuant to the following clause (b). 

(b) The Company may make payment of any Defaulted Interest in any other lawful manner not inconsistent with the requirements of any securities
exchange on which the Notes may be listed, and upon such notice as may be required by such exchange, if, after 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. 
 (c) Subject to the foregoing provisions of this Section 2.13, each Note delivered under this Indenture
upon registration of, transfer of or in exchange for or in lieu of any other Note shall carry the rights to interest accrued and unpaid, and to accrue, which were carried by such other Note. 

  
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 SECTION 2.14. CUSIP Numbers and ISINs. The Company in issuing the Notes may use
“CUSIP” numbers and “ISINs” (if then generally in use) and, if so, the Trustee shall use “CUSIP” numbers and “ISINs” in notices of repurchase as a convenience to Holders; provided, however, 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 as contained in any notice of a repurchase and that reliance may be placed only on the other identification numbers
printed on the Notes, and any such repurchase shall not be affected by any defect in or omission of such numbers. The Company shall promptly notify the Trustee in writing of any changes to the CUSIP numbers and ISINs. The Notes will initially be
issued with a restricted CUSIP number. 
 SECTION 2.15. Ranking. The Notes constitute a senior general unsecured obligation of the
Company, ranking equally in right of payment with all existing and future senior unsecured Indebtedness of the Company and ranking senior in right of payment to any future Indebtedness of the Company that is expressly made subordinate to the Notes
by the terms of such Indebtedness. 
 ARTICLE 3 

Repurchase of Notes 

SECTION 3.01. Repurchase at Option of Holders Upon a Fundamental Change. (a) If a Fundamental Change occurs at any time prior to
the Maturity Date, each Holder shall have the right to require the Company to repurchase all or part of such Holder’s Notes in a principal amount thereof that is equal to $1,000 in principal amount or whole multiples thereof, on the date (the
“Fundamental Change Repurchase Date”) specified by the Company in the Fundamental Change Company Notice that is not less than 20 nor more than 35 calendar days after the date of the Fundamental Change Company Notice at a repurchase
price, payable in cash, equal to 100% of the principal amount of the Notes being repurchased, plus accrued and unpaid interest to, but excluding, the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase Price”).
However, if such Fundamental Change Repurchase Date is after a Regular Record Date and on or prior to the corresponding Interest Payment Date, the full amount of interest due shall be paid on the Interest Payment Date to the Holder of record on the
Regular Record Date and the Fundamental Change Repurchase Price shall be equal to 100% of the principal amount of Notes to be repurchased. Repurchases of Notes under this Section 3.01 shall be made upon: 

(1) delivery to the Paying Agent by a Holder of a duly completed notice (the “Fundamental Change Repurchase
Notice”) in the form set forth on the reverse of the Note prior to 5:00 p.m., New York City time, on the Business Day immediately preceding the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase Expiration
Time”); and 
 (2) delivery or book-entry transfer of the Notes to the Paying Agent at any time after delivery of
the Fundamental Change Repurchase Notice (together with all necessary endorsements) at the Corporate Trust Office of the Paying Agent, such delivery being a condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor;
provided that such Fundamental Change Repurchase Price shall be so paid pursuant to this Section 3.01 only if the Notes so delivered to the Paying Agent shall conform in all respects to the description thereof in the related Fundamental
Change Repurchase Notice. 

  
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 The Fundamental Change Repurchase Notice shall state: 

(i) with respect to Global Notes, the appropriate Depositary information and, with respect to certificated Notes, the
certificate numbers, if any, of the Notes to be tendered for repurchase; 
 (ii) the portion of the principal amount of the
Notes to be repurchased, which must be $1,000 or whole multiples thereof; and 
 (iii) that the Notes are to be repurchased
by the Company pursuant to the applicable provisions of the Notes and this Indenture. 
 Payment of the Fundamental Change Repurchase Price
for Notes for which a Fundamental Change Repurchase Notice has been delivered and not withdrawn is conditioned upon book-entry transfer or delivery of the Notes, together with necessary endorsements, to the Paying Agent, as the case may be. Payment
of the Fundamental Change Repurchase Price for the Notes shall be made promptly following the later of the Fundamental Change Repurchase Date and the time of book-entry transfer or delivery of the Notes, as the case may be. 

All questions as to the validity, eligibility (including time of receipt) and acceptance of any Notes for repurchase shall be determined by
the Company, whose determination shall be final and binding absent manifest error. 
 Notwithstanding anything herein to the contrary, any
Holder delivering to the Paying Agent the Fundamental Change Repurchase Notice contemplated by this Section 3.01 shall have the right to withdraw such Fundamental Change Repurchase Notice at any time prior to the Fundamental Change Repurchase
Expiration Time by delivering a written notice of withdrawal to the Paying Agent in accordance with Section 3.02 below. 
 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. 

(b) On or before the tenth Business Day after the occurrence of a Fundamental Change, the Company shall provide to all Holders on the date of
the Fundamental Change at their addresses shown in the Register of the Registrar and to beneficial owners to the extent required by applicable law, the Trustee and the Paying Agent a written notice (the “Fundamental Change Company
Notice”) of the occurrence of the Fundamental Change and the resulting repurchase right. 
 Each Fundamental Change Company Notice
shall specify, among other things: 
 (i) the events causing the Fundamental Change; and 

(ii) the date of the Fundamental Change; 

(iii) the Fundamental Change Repurchase Date; 

  
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 (iv) the last date on which a repurchase upon a Fundamental Change may be
exercised, which shall be the Business Day immediately preceding the Fundamental Change Repurchase Date; 
 (v) the
Fundamental Change Repurchase Price; 
 (vi) the names and addresses of the Paying Agent and the Conversion Agent; 

(vii) the procedures that a Holder must follow to exercise the right to repurchase upon a Fundamental Change; 

(viii) that the Fundamental Change Repurchase Price for any Notes as to which a Fundamental Change Repurchase Notice has been
given and not withdrawn shall be paid on the later of such Fundamental Change Repurchase Date and the time of book-entry transfer or delivery of the Notes (together with all necessary endorsements); 

(ix) that, except as otherwise provided herein with respect to a Fundamental Change Repurchase Date that is after a Regular
Record Date for the payment of an installment of interest and on or before the related Interest Payment Date, on and after such Fundamental Change Repurchase Date (unless there shall be a Default in the payment of the Fundamental Change Repurchase
Price), interest on Notes subject to repurchase upon Fundamental Change shall cease to accrue, and all rights of the Holders of such Notes shall terminate, other than the right to receive, in accordance herewith, the Fundamental Change Repurchase
Price; 
 (x) that a Holder shall be entitled to withdraw its election in the Fundamental Change Repurchase Notice prior to
5:00 p.m., New York City time, on the Business Day immediately preceding the Fundamental Change Repurchase Date, by means of a letter or facsimile transmission (receipt of which is confirmed and promptly followed by a letter) setting forth the name
of such Holder, a statement that such Holder is withdrawing its election to have Notes purchased by the Company on such Fundamental Change Repurchase Date pursuant to a repurchase upon a Fundamental Change, the certificate number(s) of such Notes to
be so withdrawn, if such Notes are certificated Notes, the principal amount of the Notes of such Holder to be so withdrawn, which amount must be $1,000 or an integral multiple thereof and the principal amount, if any, of the Notes of such Holder
that remain subject to the Fundamental Change Repurchase Notice delivered by such Holder in accordance with this Section 3.01, which amount must be $1,000 or an integral multiple thereof; provided, however, that if there shall be
a Default in the payment of the Fundamental Change Repurchase Price, a Holder shall be entitled to withdraw its election in the Fundamental Change Repurchase Notice at any time during which such Default is continuing; 

  
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 (xi) the Conversion Rate and any adjustments to the Conversion Rate that
shall result from such Fundamental Change; 
 (xii) that Notes with respect to which a Fundamental Change Repurchase Notice
is given by a Holder may be converted pursuant to Article 10 only if such Fundamental Change Repurchase Notice has been withdrawn in accordance with this Section 3.01 or the Company defaults in the payment of the Fundamental Change Repurchase
Price; 
 (xiii) the CUSIP number or numbers, as the case may be, of the Notes; and 

(xiv) 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 repurchase rights of Holders or affect the validity of the
proceedings for the repurchase of the Notes pursuant to this Section 3.01. 
 Notwithstanding the foregoing, the Company will not be
required to repurchase, or to make an offer to repurchase, the Notes upon a Fundamental Change if a third party makes such an offer in the same manner, at the same time and otherwise in compliance with the requirements for an offer made by the
Company pursuant to Article III and such third party purchases all Notes properly surrendered and not validly withdrawn under its offer in the same manner, at the same time and otherwise in compliance with the requirements for an offer made by the
Company pursuant to Article III. 
 (c) Notwithstanding the foregoing, no Notes may be repurchased by the Company 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 the Fundamental Change Repurchase 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). 
 SECTION 3.02. Withdrawal
of Fundamental Change Repurchase Notice. A Fundamental Change Repurchase Notice may be withdrawn by means of a written notice of withdrawal delivered to the Corporate Trust Office in accordance with the Fundamental Change Repurchase Notice
at any time prior to the Fundamental Change Repurchase Expiration Time, specifying: 
 (1) with respect to Global Notes, the
appropriate Depositary information and, with respect to certificated Notes, the certificate number, if any, of the withdrawn Notes; 

(2) the principal amount of the withdrawn Notes; and 

(3) the principal amount, if any, of such Notes that remains subject to the original Fundamental Change Repurchase Notice,
which portion must be in principal amounts of $1,000 or multiples of $1,000. 

  
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 SECTION 3.03. Deposit of Fundamental Change Repurchase Price. Prior to 10:00 a.m.,
New York City time, on the Fundamental Change Repurchase Date, the Company shall deposit with the Paying Agent or, if the Company or a Wholly Owned Subsidiary of the Company is acting as the Paying Agent, shall segregate and hold in trust as
provided in Section 2.06, an amount of cash in immediately available funds, sufficient to pay the aggregate Fundamental Change Repurchase Price of all the Notes or portions thereof that are to be repurchased as of the Fundamental Change
Repurchase Date. 
 If the Paying Agent holds on the Fundamental Change Repurchase Date cash sufficient to pay the Fundamental Change
Repurchase Price of the Notes that Holders have elected to require the Company to repurchase in accordance with Section 3.01, then, as of the Fundamental Change Repurchase Date: 

(i) such Notes shall cease to be outstanding, interest shall cease to accrue, whether or not book-entry transfer of the Notes
has been made or the Notes have been delivered to the Paying Agent, as the case may be; and 
 (ii) all other rights of the
Holders of such Notes shall terminate, other than the right to receive the Fundamental Change Repurchase Price upon delivery or transfer of the Notes. 

SECTION 3.04. Notes Repurchased in Part. Upon presentation of any Notes repurchased only in part, the Company shall execute and the
Trustee shall authenticate and make available for delivery to the Holder thereof, at the expense of the Company, a new Note or Notes, of any authorized denomination, in aggregate principal amount equal to the unrepurchased portion of the Notes
presented. 
 SECTION 3.05. Covenant to Comply with Securities Laws Upon Repurchase of Notes. In connection with any
repurchase upon a Fundamental Change, the Company shall, to the extent applicable, (i) comply with the provisions of Rule 13e-4 and any other tender offer rules under the Exchange Act that may be
applicable at the time of the offer to repurchase the Notes; (ii) file a Schedule TO or any other schedule required in connection with any offer by the Company to repurchase the Notes; and (iii) comply with all other federal and state
securities laws in connection with any offer by the Company to repurchase the Notes. 
 ARTICLE 4 

Covenants 
 SECTION 4.01.
Payment of Notes. The Company shall promptly pay the principal of and interest on the Notes on the dates and in the manner provided in the Notes and in this Indenture. Principal and interest shall be considered paid on the date due if on such
date the Trustee or the Paying Agent holds in accordance with this Indenture money sufficient to pay all principal and interest then due and the Trustee or the Paying Agent, as the case may be, is not prohibited from paying such money to the Holders
on that date pursuant to the terms of this Indenture. 

  
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 The Company shall pay interest on overdue principal at the rate specified therefor in the
Notes, and it shall pay interest on overdue installments of interest at the rate and in the manner specified in Section 2.13. 

SECTION 4.02. Maintenance of Office or Agency. The Company shall maintain an office or agency where the Notes may be surrendered for
registration of transfer or exchange or for presentation for payment or for conversion or repurchase and where notices and demands to or upon the Company in respect of the Notes and this Indenture may be served. As of the date of this Indenture,
such office is located at the office of the Trustee located at The Bank of New York Mellon Trust Company, N.A., 500 Ross Street, 12th Floor, Pittsburgh, Pennsylvania 15262, Attention: Corporate Trust Administration and, at any other time, at such
other address as the Trustee may designate from time to time by notice to the Company. The Company shall give prompt written notice to the Trustee of the location, and any change in the location, of such office or agency not designated or appointed
by the Trustee. 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 or served at the
Corporate Trust Office. 
 The Company may also from time to time designate co-registrars and one or
more offices or agencies where the Notes may be presented or surrendered for any or all such purposes and may from time to time rescind such designations. The Company shall 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. 
 SECTION 4.03. Reports; 144A Information. 

(a) The Company shall provide the Trustee with a copy of the reports it must file with the SEC pursuant to Section 13 or 15(d) of the
Exchange Act no later than the time those reports must be filed with the SEC (after giving effect to any grace period provided by Rule 12b-25 under the Exchange Act). The filing of these reports with the SEC
through its EDGAR database within the time periods for filing the same under the Exchange Act (taking into account any applicable grace periods provided thereunder) shall satisfy the Company’s obligation to furnish those reports to the Trustee;
provided, however, that the Trustee shall have no obligation whatsoever to determine whether or not such filings have been made. 

(b) If at any time the Company is not subject to the reporting obligations of the Exchange Act, the Company shall furnish to the Holders or
beneficial holders and prospective purchasers of the Notes or the Common Stock issued upon conversion, upon their request, the information, if any, required under Rule 144A(d)(4) under the Securities Act until such time as such securities are no
longer “restricted securities” within the meaning of Rule 144 under the Securities Act, assuming these securities have not been owned by an affiliate of the Company. 

(c) Delivery of such reports, information and documents to the Trustee is for information purposes only and 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

  
 28 

 
Trustee is entitled to rely exclusively on Officers’ Certificates). The Trustee is under no duty to examine such reports, information or documents to ensure compliance with the provisions of
this Indenture or to ascertain the correctness or otherwise of the information or the statements contained therein. The Trustee is entitled to assume such compliance and correctness unless a Responsible Officer of the Trustee is informed otherwise.

 SECTION 4.04. Existence. The Company shall do or cause to be done all things necessary to preserve and keep in full force and
effect its existence and rights (charter and statutory); provided that the Company shall not be required to preserve any such right if the Company shall determine that the preservation thereof is no longer desirable in the conduct of
the business of the Company and that the loss thereof is not disadvantageous in any material respect to the Holders. 
 SECTION 4.05.
[Reserved]. 
 SECTION 4.06. Compliance Certificate. The Company shall deliver to the Trustee within 120 calendar days after
the end of each fiscal year of the Company (beginning with the fiscal year ended December 31, 2019) an Officers’ Certificate, stating whether or not, to the knowledge of such officer, any Default or Event of Default occurred during such
period and if so, describing each Default or Event of Default, its status and the action the Company is taking or proposes to take with respect thereto. The Company also shall comply with Section 314(a)(4) of the Trust Indenture Act. 

SECTION 4.07. Further Instruments and Acts. The Company shall execute and deliver such further instruments and do such further acts as
may be reasonably necessary or proper to carry out more effectively the purpose of this Indenture. 
 SECTION 4.08. Notification of Rule
144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest. If Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest, as applicable, is payable by
the Company, the Company shall deliver to the Trustee an Officers’ Certificate to that effect stating (i) the amount of such Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest, as
applicable, that is payable and (ii) the date on which payment of such Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest, as applicable, shall commence. Unless and until a Responsible
Officer of the Trustee receives such a certificate, the Trustee may assume without inquiry that no Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest, as applicable, is payable. 

SECTION 4.09. Statement by Officer as to Default. The Company shall deliver to the Trustee, promptly and in any event ten Business Days
after the Company becomes aware of the occurrence of any Event of Default or Default, an Officers’ Certificate setting forth the details of such Event of Default or Default, its status and the action which the Company proposes to take with
respect thereto. 

  
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 SECTION 4.10. Waiver of Stay, Extension or Usury Laws. The Company covenants (to the
extent it may lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take benefit or advantage of, any stay, extension or usury law or other law which 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; 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 shall not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but shall suffer and permit the execution of every such power as though no such law had been enacted. 

SECTION 4.11. [Reserved]. 

SECTION 4.12. Rule 144 Additional Interest. 

(a) If, at any time during the six-month period beginning on, and including, the date which is six
months after the last original issuance date of the Notes, the Company fails to timely file any document or report that the Company is required to file with the SEC 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 current reports on Form 8-K), the Company shall pay additional interest (“Rule 144 Additional Interest”) on the Notes
which shall accrue on all transfer restricted Notes at an annual 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 continues. 

(b) Rule 144 Additional Interest payable in accordance with Section 4.12(a) shall be payable in arrears on each Interest Payment Date
following the late filing in the same manner as regular interest on the Notes. 
 (c) No Rule 144 Additional Interest shall accrue after the
six month period provided in Section 4.12(a), regardless of whether such failure has occurred or is continuing. 
 SECTION 4.13.
Free Transferability of Notes. 
 (a) The Company will remove the Restricted Note Legend on the Notes and otherwise permit transfers
of the Notes without restriction promptly after the earlier of (i) the transfer of the Notes pursuant to a registration statement which has been declared effective under the Securities and which continues to be effective at the time of such
transfer, (ii) the expiration of one year from the last date of original issuance of the Notes, or (iii) such shorter period of time as permitted by Rule 144 under the Securities Act or any successor provision thereunder. 

(b) The Company shall remove the legends from the Notes (and any Common Stock issued upon conversion thereof) as follows: 

(i) if such Notes or Common Stock are evidenced by one or more Global Notes or global certificates, as the case may be, the
Company will remove such legends on the date specified by Section 4.13(a); provided that if the Depositary requires any action on the part of any participant in the Depositary or any beneficial owner of such Notes or Common Stock, the
Company will not be required to remove such legends until such action has been taken; and 

  
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 (ii) if such Notes and Common Stock are in certificated form, the Company
will remove such legends upon surrender of such Notes or Common Stock to the Company for exchange, transfer, conversion or redemption, as the case may be, at any time on or after the date specified by Section 4.13(a). 

(c) Further, if, and for so long as, the Restricted Note Legend on the Notes has not been removed, the Notes are assigned a restricted CUSIP or
the Notes are not otherwise Freely Transferable by holders other than Affiliates of the Company or Persons that were Affiliates of the Company during the immediately preceding three months (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 the Notes, the Company shall pay additional interest (“Free Transferability Additional Interest”) on the Notes at a rate equal to
0.50% per annum of the principal amount of Notes outstanding until the Notes are Freely Transferable as described above by holders other than Affiliates of the Company or Persons that were Affiliates of the Company during the immediately preceding
three months. No Free Transferability Additional Interest shall be payable pursuant to this Section 4.13 for so long as Rule 144 Additional Interest is accruing and payable pursuant to Section 4.12; provided, however, that,
for the avoidance of any doubt, Free Transferability Additional Interest shall accrue and be payable pursuant to this Section 4.13 once such Rule 144 Additional Interest ceases to accrue and be payable pursuant to Section 4.12. 

(d) Free Transferability Additional Interest payable in accordance with Section 4.13(c) shall be payable in arrears on each Interest
Payment Date following the 380th day after the last date of original issuance of the Notes in the same manner as regular interest on the Notes. 

(e) Notwithstanding anything to the contrary contained in this Indenture, the sole remedy under this Indenture for not removing the legends
from the Notes as provided in this Section 4.13 shall be the payment of Free Transferability Additional Interest as provided in Section 4.13(c). 

ARTICLE 5 
 Successor Company

 SECTION 5.01. When Company May Merge or Transfer Assets. The Company shall not, in a single transaction or a series of related
transactions, consolidate with or merge with or into any other Person or sell, convey, transfer, lease or otherwise dispose of all or substantially all of the property and assets of the Company and its Subsidiaries taken as a whole to another
Person, unless: 
 (a) either (i) the Company is the surviving corporation or (ii) the resulting, surviving or transferee Person
(if other than the Company) (the “Successor Company”) is a corporation organized and existing under the laws of the United States, any state thereof or the District of Columbia and such Person assumes, by a supplemental
indenture in a form reasonably satisfactory to the Trustee, all of the Company’s obligations under the Notes and this Indenture; 

  
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 (b) immediately after giving effect to the transaction, no Default or Event of Default has
occurred and is continuing; 
 (c) if as a result of such transaction the Notes become convertible into common stock or other securities
issued by a third party, such third party fully and unconditionally guarantees all obligations of the Company or the Successor Company, as applicable, under the Notes and this Indenture; and 

(d) the Company has delivered to the Trustee the Officers’ Certificate and Opinion of Counsel stating that such transaction complies with
Article 5. 
 SECTION 5.02. Successor to Be Substituted. In case of any such transaction described in Section 5.01 other than a
lease in which the Company is not the surviving corporation and upon the assumption by the Successor Company, by supplemental indenture, executed and delivered to the Trustee and reasonably satisfactory in form and substance to the Trustee, of the
due and punctual payment of the principal of and interest on all of the Notes, and the due and punctual performance and observance of all of the covenants and conditions of this Indenture to be performed or satisfied by the Company, such Successor
Company shall succeed, and be substituted for, and may exercise every right and power of, the Company, and InterDigital, Inc. shall be discharged from its obligations under the Notes and this Indenture, except in the case of a lease. Such Successor
Company thereupon may cause to be signed, and may issue either in its own name or in the name of InterDigital, Inc. any or all of the Notes, issuable hereunder that 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, transfer or other disposition, upon compliance with this Article 5 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 5 may be dissolved, wound up and liquidated at any time thereafter and such Person shall be discharged from its liabilities as obligor
and maker of the Notes and from its obligations under this Indenture. 
 SECTION 5.03. Opinion of Counsel to Be Given Trustee. Prior
to execution of any supplemental indenture pursuant to this Article 5, the Trustee shall receive an Officers’ Certificate and an Opinion of Counsel as conclusive evidence that any such consolidation, merger, sale, conveyance, transfer, lease or
other disposition and any such assumption complies with the provisions of this Article 5. 

  
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 ARTICLE 6 

Defaults and Remedies 

SECTION 6.01. Events of Default. An “Event of Default” occurs if: 

(a) the Company fails to pay any interest on the Notes when due and such failure continues for a period of 30 calendar days; 

(b) the Company fails to pay principal of the Notes when due at maturity, or the Company fails to pay the Fundamental Change Repurchase Price
payable, in respect of any Notes when due; 
 (c) the Company fails to deliver cash and, if applicable, shares of Common Stock, as required
pursuant to Article 10 upon the conversion of any Notes, and such failure continues for five calendar days following the scheduled settlement date for such conversion; 

(d) the Company fails to comply with Article 5; 

(e) the Company fails to provide notice of any transaction described under Section 10.01(2); 

(f) the Company fails to provide notice of the anticipated effective date or actual effective date of a Fundamental Change pursuant to Sections
3.01(b), Section 10.01(2) or 10.01(3), in each case, which failure continues for five days after the date when due; 
 (g) the Company
fails to perform or observe any term, covenant or agreement in the Notes or this Indenture (other than a covenant or agreement a default in whose performance or whose breach is elsewhere in this Section 6.01 specifically dealt with) for a
period of 60 calendar days after the written notice specified below is given by the Trustee to the Company or by the Holders of at least 25% in aggregate principal amount of the Notes then outstanding to the Company and the Trustee, as the case may
be; 
 (h) the failure to pay when due (whether at stated maturity or otherwise) or a default that results in the acceleration of maturity,
of any Indebtedness of the Company or any Significant Subsidiary in an aggregate amount in excess of $25,000,000 (or its foreign currency equivalent), unless such Indebtedness is paid or discharged, or such acceleration is rescinded, stayed or
annulled, within a period of 30 calendar days after the written notice specified below is given by the Trustee to the Company or by the Holders of at least 25% in aggregate principal amount of the Notes then outstanding to the Company and the
Trustee, as the case may be; 
 (i) a final judgment for the payment in excess of $25,000,000 (or its foreign currency equivalent) (excluding
any amounts covered by insurance) rendered against the Company or any Subsidiary of the Company, which judgment is not paid, discharged or stayed within 60 calendar days after (A) the date on which the right to appeal or petition for review
thereof has expired if no such appeal or review has commenced, or (B) the date on which all rights to appeal or petition for review have been extinguished; 

  
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 (j) the Company or any of its Significant Subsidiaries pursuant to or within the meaning of
any Bankruptcy Law: 
 (1) commences a voluntary case; 

(2) consents to the entry of an order for relief against it in an involuntary case; 

(3) consents to the appointment of a Custodian of it or for any substantial part of its property; 

(4) makes a general assignment for the benefit of its creditors; or 

(5) or takes any comparable action under any foreign laws relating to insolvency; or 

(k) a court of competent jurisdiction enters an order or decree under any Bankruptcy Law that: 

(1) is for relief against the Company or any of its Significant Subsidiaries in an involuntary case; 

(2) appoints a Custodian of the Company or any of its Significant Subsidiaries or for any substantial part of its property;

 (3) orders the winding up or liquidation of the Company or any of its Significant Subsidiaries; or 

(4) any similar relief is granted under any foreign laws and the order or decree remains unstayed and in effect for 60 calendar
days. 
 The foregoing shall constitute Events of Default whatever the reason for any such Event of Default and whether it is voluntary or
involuntary or is 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. 

The term “Bankruptcy Law” means Title 11, United States Code, or any similar federal or state law for the relief of
debtors. The term “Custodian” means any receiver, trustee, assignee, liquidator, custodian or similar official under any Bankruptcy Law. 

A Default under clause (g) or (h) of this Section 6.01 is not an Event of Default until the Trustee notifies the Company or the
Holders of at least 25% in aggregate principal amount of the Notes then outstanding notify the Company and the Trustee, as the case may be, of the Default and the Company does not cure such Default within the time specified in clause (g) or (h)
of this Section 6.01, as applicable, after receipt of such notice. Such notice must specify the Default, demand that it be remedied and state that such notice is a “Notice of Default”. 

  
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 SECTION 6.02. Acceleration. If an Event of Default (other than an Event of Default
specified in Section 6.01(j) or (k) with respect to the Company) occurs and is continuing, the Trustee by notice to the Company, or the Holders of at least 25% in aggregate principal amount of the outstanding Notes by notice to the Company
and the Trustee, may declare the principal amount of the Notes and accrued and unpaid interest on the outstanding Notes to be due and payable. If an Event of Default specified in Section 6.01(j) or (k) with respect to the Company occurs,
the principal amount of the Notes and accrued and unpaid interest on the outstanding Notes shall become and be immediately due and payable without any declaration or other act on the part of the Trustee or any Holders. 

After a declaration of acceleration, but before a judgment or decree for payment of the money due has been obtained by the Trustee, the
Holders of a majority in aggregate principal amount of the Notes outstanding, by written notice to the Company and the Trustee, may rescind and annul such declaration if: 

(a) the Company has paid (or deposited with the Trustee a sum sufficient to pay): 

(1) all overdue interest on all Notes; 

(2) the principal amount of any Notes that have become due otherwise than by such declaration of acceleration; 

(3) to the extent that payment of such interest is lawful, interest upon overdue interest; and 

(4) all sums paid or advanced by the Trustee under this Indenture and the reasonable compensation, expenses, disbursements and
advances of the Trustee, its agents and counsel; and 
 (b) all Events of Default, other than the
non-payment of the principal amount of the Notes and any accrued and unpaid interest that have become due solely by such declaration of acceleration or the failure to deliver consideration upon conversion,
have been cured or waived. 
 No such rescission and annulment shall affect any subsequent Default or Event of Default or impair any right
consequent thereon. 
 SECTION 6.03. [Reserved]. 

SECTION 6.04. Other Remedies. If an Event of Default occurs and is continuing, the Trustee may pursue any available remedy to collect
the payment of principal of or interest on the Notes or to enforce the performance of any provision of the Notes or this Indenture. 
 The
Trustee may maintain a proceeding even if it does not possess any of the Notes or does not produce any of them in the proceeding. A delay or omission by the Trustee or any Holder in exercising any right or remedy accruing upon an Event of Default
shall not impair the right or remedy or constitute a waiver of or acquiescence in the Event of Default. No remedy is exclusive of any other remedy. All available remedies are cumulative. 

  
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 SECTION 6.05. Waiver of Past Defaults. Subject to Section 6.02, the Holders of a
majority in aggregate principal amount of the Notes outstanding may, on behalf of all Holders of all the Notes, waive any past Default or Event of Default under this Indenture and its consequences, except: 

(i) the Company’s failure to pay principal of or interest on any Notes when due; 

(ii) the Company’s failure to convert any Notes into cash and, if applicable, Common Stock pursuant to the terms of this
Indenture; 
 (iii) the Company’s failure to pay the Fundamental Change Repurchase Price on the Fundamental Change
Repurchase Date in connection with a Holder exercising its repurchase rights; or 
 (iv) the Company’s failure to comply
with any of the provisions of this Indenture that under Section 9.02 cannot be amended without the consent of each Holder affected. 

When a Default is waived, it is deemed cured, but no such waiver shall extend to any subsequent or other Default or impair any consequent
right. 
 SECTION 6.06. Control by Majority. The Holders of a majority in aggregate principal amount of the outstanding Notes shall
have the right to direct the time, method and place of any proceedings for any remedy available to the Trustee. However, the Trustee may refuse to follow any direction that conflicts with law or this Indenture or, subject to Section 7.01, that
the Trustee determines is unduly prejudicial to the rights of other Holders or would involve the Trustee in personal liability or expense for which the Trustee has not received adequate indemnity as determined by it in good faith; provided,
however, that the Trustee may take any other action deemed proper by the Trustee that is not inconsistent with such direction. Prior to taking any action hereunder, the Trustee shall be entitled to indemnity or security reasonably
satisfactory to it in its sole discretion against all losses, liabilities, and expenses caused by taking or not taking such action. 

SECTION 6.07. Limitation on Suits. Except to enforce the right to receive payment of principal or interest when due or consideration
due upon conversion when due, no Holder may pursue any remedy with respect to this Indenture or the Notes unless: 
 (a) such Holder has
given the Trustee written notice of an Event of Default; 
 (b) the Holders of at least 25% in aggregate principal amount of the outstanding
Notes have made a written request to the Trustee to pursue the remedy, and offered reasonable security or indemnity against any costs, liability or expense of the Trustee; 

(c) the Trustee fails to comply with such request within 60 calendar days after receipt of such request and the offer of indemnity; and 

(d) the Trustee has not received an inconsistent direction from the Holders of a majority in aggregate principal amount of the outstanding
Notes. 

  
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 A Holder may not use this Indenture to prejudice the rights of another Holder or to obtain a
preference or priority over another Holder (it being understood that the Trustee shall not have any affirmative duty to ascertain whether or not such actions or forbearances are unduly prejudicial to such Holders). 

SECTION 6.08. Rights of Holders to Receive Payment. Notwithstanding any other provision of this Indenture, the right of any Holder to
receive payment of principal (including payments pursuant to the required repurchase provisions of the Notes) of and interest on the Notes held by such Holder, on or after the respective due dates expressed in the Notes or in the event of
repurchase, or to bring suit for the enforcement of any such payment on or after such respective dates, shall not be impaired or affected without the consent of such Holder. In addition, notwithstanding any other provision of this Indenture, the
right of any Holder to enforce its rights of conversion in accordance with the provisions of Article 10, on or after the applicable date for settlement of the Company’s Conversion Obligation, shall not be impaired or affected without the
consent of such Holder. 
 SECTION 6.09. Collection Suit by Trustee. If an Event of Default specified in Section 6.01(a), (b) or
(c) occurs and is continuing, the Trustee may recover judgment in its own name and as trustee of an express trust against the Company for the whole amount then due and owing (together with interest on any unpaid interest to the extent lawful)
and the amounts provided for in Section 7.07. 
 SECTION 6.10. Trustee May File Proofs of Claim. The Trustee may file such
proofs of claim and other papers or documents as may be 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 its
counsel) and the Holders allowed in any judicial proceedings relative to the Company, its Subsidiaries or its or their respective creditors or property and, unless prohibited by law or applicable regulations, may be entitled and empowered to
participate as a member of any official committee of creditors appointed in such matter, and may vote on behalf of the Holders in any election of a trustee in bankruptcy or other Person performing similar functions, and any Custodian in any such
judicial proceeding is hereby authorized by each Holder to make payments to the Trustee 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 the
reasonable compensation, expenses, disbursements and advances of the Trustee, its agents and its counsel, and any other amounts due the Trustee under Section 7.07. 

SECTION 6.11. Priorities. If the Trustee collects any money or property pursuant to this Article 6, it shall pay out the money or
property in the following order: 
 FIRST: to the Trustee for amounts due under Section 7.07; 

  
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 SECOND: to Holders for amounts due and unpaid on the Notes for principal
(including payments pursuant to the required repurchase provisions of the Notes) and interest, ratably without preference or priority of any kind, according to the amounts due and payable on the Notes for principal (including payments pursuant to
the required repurchase provisions of the Notes) and interest or in respect of any Conversion Obligation of the Company, respectively; and 

THIRD: to the Company. 

The Trustee may fix a record date and payment date for any payment to Holders pursuant to this Section 6.11. At least fifteen calendar
days before such record date, the Trustee shall send to each Holder and the Company a notice that states the record date, the payment date and amount to be paid. 

SECTION 6.12. Undertaking for Costs. 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, a court in its discretion may require the filing by any party litigant in the suit of an undertaking to pay the costs of the suit, and the court in its discretion may assess reasonable
costs, including reasonable attorneys’ fees and expenses, against any party litigant in the suit, having due regard to the merits and good faith of the claims or defenses made by the party litigant. This Section 6.12 does not apply to a
suit by the Trustee, a suit by a Holder pursuant to Section 6.08 or a suit by Holders of more than 10% in principal amount of the Notes. 

SECTION 6.13. Failure to Comply with Reporting Covenant(a) . Notwithstanding anything to the contrary in this Indenture, the Company
may elect that the sole remedy for an Event of Default relating to the Company’s failure to comply with the covenant in Section 4.03(a) and the Company’s failure to comply with the requirements of Section 314(a)(1) of the Trust
Indenture Act (which also relate to the provision of reports), for the 360 days after the occurrence of such an Event of Default shall consist exclusively of the right to receive additional interest (the “Reporting Additional
Interest”) on the Notes at an annual rate equal to (i) 0.25% of the outstanding principal amount of the Notes from the first date of the occurrence of such Event of Default to, but not including, the 180th day thereafter (or such earlier date on which the Event of Default relating to the Company’s reporting obligations pursuant to Section 4.03(a) and Section 314(a)(1) of the Trust
Indenture Act shall have been cured or waived) and (ii) 0.50% of the outstanding principal amount of the Notes from the 181st date following the occurrence to the 360th day after the first date of the occurrence of such Event of Default (or such earlier date on which the Event of Default relating to the Company’s reporting obligations pursuant to
Section 4.03(a) and Section 314(a)(1) of the Trust Indenture Act shall have been cured or waived). In the event the Company does not elect to pay the Reporting Additional Interest upon an Event of Default in accordance with this
Section 6.13, the Notes shall be subject to acceleration pursuant to Section 6.02. This Reporting Additional Interest shall be payable in arrears on the same dates and in the same manner as regular interest on the Notes. On such 360th day, if such Event of Default is continuing, such Reporting Additional Interest shall cease to accrue and the Notes shall be subject to acceleration as provided in Section 6.02. For the
avoidance of doubt, in the event Rule 144 Additional Interest is triggered under Section 4.12 or Free Transferability Additional Interest is triggered under Section 4.13 during a period in which the Company has elected that the accrual of
Reporting Additional Interest be the sole remedy for any such Event of Default, no Reporting Additional Interest shall be payable pursuant to this Section 6.13 for so long as Rule 144 Additional Interest is accruing and payable pursuant to
Section 4.12 or Free 

  
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Transferability Additional Interest is accruing and payable pursuant to Section 4.13. This Section 6.13 shall not affect the rights of Holders in the event of the occurrence of any
other Event of Default. The Company shall notify the Trustee in writing promptly upon its becoming aware of its obligation to pay Reporting Additional Interest, the date on which such Reporting Additional Interest is payable and the amount
identified as Reporting Additional Interest. In no event shall the Trustee be charged with knowledge of whether such Reporting Additional Interest is due, unless it has received the written notice referred to in the preceding sentence. 

ARTICLE 7 
 Trustee 

SECTION 7.01. Duties of Trustee. (a) If an Event of Default has occurred and is continuing, the Trustee shall exercise the rights
and powers vested in it by this Indenture and use the same degree of care and skill in its exercise as a prudent Person would exercise or use under the circumstances in the conduct of such Person’s own affairs. 

(b) Except during the continuance of an Event of Default: 

(1) the Trustee need only perform such duties as are specifically set forth in this Indenture and no implied covenants or
obligations shall be read into this Indenture against the Trustee; and 
 (2) in the absence of bad faith on its part, the
Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon certificates or opinions furnished to the Trustee and conforming to the requirements of this Indenture. However, the Trustee
shall examine the certificates and opinions to determine whether or not they conform to the requirements of this Indenture (but need not confirm or investigate the accuracy of mathematical calculations or other facts stated therein). 

(c) The Trustee may not be relieved from liability for its own negligent action, its own negligent failure to act or its own willful
misconduct, except that: 
 (1) this paragraph does not limit the effect of paragraph (b) of this Section; 

(2) the Trustee shall not be liable for any error of judgment made in good faith by a Responsible Officer unless it is proved
that the Trustee was negligent in ascertaining the pertinent facts; and 
 (3) the Trustee shall not be liable with respect
to any action it takes or omits to take in good faith in accordance with a direction received by it pursuant to Section 6.06. 
 (d)
Every provision of this Indenture that in any way relates to the Trustee is subject to paragraphs (a), (b) and (c) of this Section. 

  
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 (e) The Trustee shall not be liable for interest on any money received by it except as the
Trustee may agree in writing with the Company. 
 (f) Money held in trust by the Trustee need not be segregated from other funds except to
the extent required by law. 
 (g) No provision of this Indenture shall require the Trustee to expend or risk its own funds or otherwise
incur financial liability in the performance of any of its duties hereunder or in the exercise of any of its rights or powers, if it shall have reasonable grounds to believe that repayment of such funds or adequate indemnity against such risk or
liability is not reasonably assured to it. 
 (h) 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 and to the provisions of the Trust Indenture Act. 

SECTION 7.02. Rights of Trustee. (a) The Trustee may rely on any document believed by it to be genuine and to have been signed or
presented by the proper person. The Trustee need not investigate any fact or matter stated in the document. 
 (b) Before the Trustee acts or
refrains from acting, it may require an Officers’ Certificate or an Opinion of Counsel. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on the Officers’ Certificate or Opinion of Counsel.

 (c) The Trustee may act through agents and shall not be responsible for the misconduct or negligence of any agent appointed with due care.

 (d) The Trustee may consult with counsel, and the advice or opinion of counsel with respect to legal matters relating to this Indenture
and the Notes shall be full and complete authorization and protection from liability in respect to any action taken, omitted or suffered by it hereunder in good faith and in accordance with the advice or opinion of such 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, consent, order, approval, bond, debenture, note 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. 
 (f) The Trustee shall be under no obligation to exercise any of the rights or powers vested in it by this Indenture at the request,
order or direction of any of the Holders pursuant to the provisions of this Indenture, unless such Holders shall have offered to the Trustee security or indemnity reasonably satisfactory to the Trustee against the costs, expenses and liabilities
which may be incurred therein or thereby. 
 (g) The rights, privileges, protections, immunities and benefits given to the Trustee,
including, without limitation, its rights to be indemnified, are extended to, and shall be enforceable by, the Trustee in each of its capacities hereunder, and to each agent, custodian and other Person employed to act hereunder. 

  
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 (h) The Trustee may request that the Company deliver an Officers’ Certificate setting
forth the names of individuals and/or titles of officers authorized at such time to take specified actions pursuant to this Indenture, which Officers’ Certificate may be signed by any person authorized to sign an Officers’ Certificate,
including any person specified as so authorized in any such certificate previously delivered and not superseded. 
 (i) The Trustee shall not
be liable for any action taken, suffered, or omitted to be taken by it in good faith and reasonably believed by it to be authorized or within the discretion or rights or powers conferred upon it by this Indenture. 

(j) The Trustee shall not be required to give any note, bond or surety in respect of the execution of the trusts and powers under this
Indenture. 
 (k) The Trustee shall not be responsible or liable for any failure or delay in the performance of its obligations under this
Indenture arising out of or caused, directly or indirectly, by circumstances beyond its reasonable control, including, without limitation, acts of God; earthquakes; fire; flood; terrorism; wars and other military disturbances; sabotage; epidemics;
riots; interruptions; loss or malfunction of utilities, computer (hardware or software) or communication services; accidents; labor disputes; acts of civil or military authorities and governmental action. 

(l) In no event shall the Trustee be responsible or liable for special, indirect, punitive or consequential loss or damage of any kind
whatsoever (including, but not limited to, loss of profit) irrespective of whether the Trustee has been advised of the likelihood of such loss or damage and regardless of the form of action. 

SECTION 7.03. Individual Rights of Trustee. The Trustee in its individual or any other capacity may become the owner or pledgee of
Notes and may otherwise deal with the Company or its Affiliates with the same rights it would have if it were not Trustee. Any Conversion Agent, Paying Agent, Registrar or co-paying agent may do the same with
like rights. However, the Trustee must comply with Sections 7.10 and 7.11. 
 SECTION 7.04. Trustee’s Disclaimer.
The Trustee shall not be responsible for and makes no representation as to the validity or adequacy of this Indenture or the Notes, it shall not be accountable for the Company’s use of the proceeds from the Notes, and it shall not be
responsible for any statement of the Company in this Indenture or in any document issued in connection with the sale of the Notes or in the Notes other than the Trustee’s certificate of authentication. 

SECTION 7.05. Notice of Defaults. (a) The Trustee shall not be deemed to have notice or knowledge of any Default, unless a
Responsible Officer has received written notice thereof at its Corporate Trust Office, and such notice references this Indenture. No duty imposed upon the Trustee in this Indenture shall be applicable with respect to any Default of which the Trustee
is not deemed to have notice. 

  
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 (b) If a Default or Event of Default occurs and is continuing, the Trustee shall deliver to
each Holder at the address set forth in the Register notice of the Default or Event of Default within 90 calendar days after receipt by it of written notice of the occurrence of such Default or Event of Default. Except in the case of a Default or
Event of Default in payment of principal or interest on any Notes or a Default in the failure to deliver the consideration due upon conversion, the Trustee may withhold notice if and so long as a committee of its Responsible Officers in good faith
determines that withholding notice is in the interests of the Holders. 
 SECTION 7.06. Reports by Trustee to Holders. As promptly as
practicable after each May 15 beginning with the May 15 following the date of this Indenture, the Trustee shall mail to each Holder a brief report dated as of such May 15 that complies with Section 313(a) of the Trust Indenture
Act, if required by such Section 313(a) of the Trust Indenture Act. The Trustee also shall comply with Section 313(b) of the Trust Indenture Act. The Trustee shall also transmit all reports required by Section 313(c) of the Trust
Indenture Act. 
 SECTION 7.07. Compensation and Indemnity. The Company shall pay to the Trustee from time to time such compensation
as the Company and the Trustee shall from time to time agree in writing. The Trustee’s compensation shall not be limited by any law on compensation of a trustee of an express trust. The Company shall reimburse the Trustee upon request for all
reasonable out-of-pocket expenses incurred or made by it, including costs of collection, in addition to the compensation for its services. Such expenses shall include
the reasonable compensation and expenses, disbursements and advances of the Trustee’s agents, counsel, accountants and experts. The Company shall indemnify the Trustee, and hold it harmless, against any and all loss, liability or expense
(including reasonable attorneys’ fees) incurred by or in connection with the offer and sale of the Notes or the administration of this trust and the performance of its duties hereunder. The Trustee shall notify the Company of any claim for
which it may seek indemnity promptly upon obtaining actual knowledge thereof; provided, however, that any failure so to notify the Company shall not relieve the Company of its indemnity obligations hereunder. The Company shall defend
the claim and the indemnified party shall provide reasonable cooperation at the Company’s expense in the defense. Such indemnified parties may have separate counsel and the Company shall pay the fees and expenses of such counsel;
provided, however, that the Company shall not be required to pay such fees and expenses if it assumes such indemnified parties’ defense and, in such indemnified parties’ reasonable judgment, there is no conflict of interest
between the Company and such parties in connection with such defense. The Company need not reimburse any expense or indemnify against any loss, liability or expense incurred by an indemnified party through such party’s own willful misconduct
and negligence. 
 To secure the Company’s payment obligations in this Section, the Trustee shall have a lien prior to the Notes on all
money or property held or collected by the Trustee other than money or property held in trust to pay principal of and interest and any liquidated damages on particular Notes. 

The Company’s payment obligations pursuant to this Section shall survive the satisfaction or discharge of this Indenture, any rejection
or termination of this Indenture under any bankruptcy law or the resignation or removal of the Trustee. When the Trustee incurs expenses after the occurrence of an Event of Default specified in Section 6.01(j) or (k) with respect to the
Company, the expenses are intended to constitute expenses of administration under the Bankruptcy Law. 

  
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 SECTION 7.08. Replacement of Trustee. The Trustee may resign by giving 30 days
written notice to the Company. The Holders of a majority in principal amount of the Notes may remove the Trustee by giving 30 days written notice to the Trustee and may appoint a successor Trustee. The Company shall remove the Trustee if: 

(a) the Trustee fails to comply with Section 7.10; 

(b) the Trustee is adjudged bankrupt or insolvent; 

(c) a receiver or other public officer takes charge of the Trustee or its property; or 

(d) the Trustee otherwise becomes incapable of acting. 

If the Trustee is removed by the Holders of a majority in principal amount of the Notes and such Holders do not reasonably promptly appoint a
successor Trustee, or if the Trustee resigns, is removed by the Company or a vacancy otherwise exists in the office of Trustee for any reason (the Trustee in such event being referred to herein as the retiring Trustee), the Company shall promptly
appoint a successor Trustee. 
 A successor Trustee shall deliver a written acceptance of its appointment to the retiring Trustee and to the
Company. Thereupon the resignation or removal of the retiring Trustee shall become effective, and the successor Trustee shall have all the rights, powers and duties of the Trustee under this Indenture. The successor Trustee shall send a notice of
its succession to Holders. The retiring Trustee shall promptly transfer all property held by it as Trustee to the successor Trustee, subject to the lien provided for in Section 7.07. 

If a successor Trustee does not take office within 60 calendar days after the retiring Trustee resigns or is removed, the retiring Trustee or
the holders of 10% in principal amount of the Notes may petition any court of competent jurisdiction for the appointment of a successor Trustee. 

If the Trustee fails to comply with Section 7.10, any Holder may petition any court of competent jurisdiction for the removal of the
Trustee and the appointment of a successor Trustee. 
 Notwithstanding the replacement of the Trustee pursuant to this Section, the
Company’s obligations under Section 7.07 shall continue for the benefit of the retiring Trustee. 
 SECTION 7.09. Successor
Trustee by Merger. If the Trustee consolidates with, merges or converts into, or transfers all or substantially all of its corporate trust business or assets to, another corporation or banking association, the resulting, surviving or transferee
corporation without any further act shall be the successor Trustee. 

  
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 In case at the time such successor or successors by merger, conversion or consolidation 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, 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 may authenticate such Notes either in the name of any predecessor hereunder or in the name of the successor to the
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. 

SECTION 7.10. Eligibility; Disqualification. The Trustee shall at all times satisfy the requirements of Trust Indenture Act §
310(a). The Trustee shall have a combined capital and surplus of at least $100,000,000 as set forth in its most recent published annual report of condition. The Trustee shall comply with Trust Indenture Act § 310(b); provided,
however, that there shall be excluded from the operation of Trust Indenture Act § 310(b)(1) any indenture or indentures under which other securities or certificates of interest or participation in other securities of the Company are
outstanding if the requirements for such exclusion set forth in Trust Indenture Act § 310(b)(1) are met. 
 SECTION 7.11.
Preferential Collection of Claims Against Company. The Trustee shall comply with Trust Indenture Act § 311(a), excluding any creditor relationship listed in Trust Indenture Act § 311(b). A Trustee who has resigned or been
removed shall be subject to Trust Indenture Act § 311(a) to the extent indicated. 
 ARTICLE 8 

Discharge of Indenture 

SECTION 8.01. Discharge of Liability on Notes. (a) This Indenture shall, subject to Section 8.01(b), cease to be of further
effect if: 
 (1) the Company (i) delivers all outstanding Notes (other than Notes replaced pursuant to
Section 2.09) to the Trustee for cancellation or (ii) deposits with the Trustee or the Paying Agent after such Notes have become due and payable, whether at stated maturity, upon conversion, or on any Fundamental Change Repurchase Date,
cash or, in the case of conversion, cash and shares of Common Stock, if any, issuable upon conversion (and cash in lieu of fractional shares) calculated in accordance with this Indenture sufficient to satisfy all obligations due on all outstanding
Notes and pays all other sums payable under this Indenture; 
 (2) in the case of a deposit pursuant to
Section 8.01(a)(1)(ii), no Default or Event of Default with respect to the Notes shall exist on the date of such deposit and such deposit shall not result in a breach or violation of, or constitute a Default under, this Indenture; and 

  
 44 

 (3) the Company has delivered to the Trustee an Officers’ Certificate
and an Opinion of Counsel, each stating that all conditions precedent provided herein relating to the satisfaction and discharge of this Indenture have been complied with. 

(b) Notwithstanding Section 8.01(a), the Company’s obligations in Sections 2.05, 2.06, 2.07, 2.08, 2.09, 2.10, 7.07, 7.08 and in this
Article 8 shall survive until the Notes have been paid in full. Thereafter, the Company’s obligations in Sections 7.07, 8.03 and 8.04 shall survive. 

SECTION 8.02. Application of Trust Money. The Trustee shall hold in trust money and any shares of Common Stock or other property due in
respect of converted Notes deposited with it pursuant to this Article 8. It shall apply the deposited money through the Paying Agent and in accordance with this Indenture to the payment of principal of and interest on the Notes or, in the case of
any shares of Common Stock or other property due in respect of converted Notes, in accordance with this Indenture in relation to the conversion of Notes pursuant to the terms hereof. 

SECTION 8.03. Repayment to Company. Subject to any applicable abandoned property law, the Trustee and the Paying Agent shall pay to the
Company upon written request any money held by them for the payment of principal or interest and any shares of Common Stock or other property due in respect of converted Notes that remains unclaimed for two years, and, thereafter, Holders entitled
to the money and/or securities must look to the Company for payment as general creditors. 
 SECTION 8.04. Reinstatement. If the
Trustee or Paying Agent is unable to apply any money or to deliver any shares of Common Stock or other property due in respect of converted Notes in accordance with this Article 8 by reason of any legal proceeding or by reason of any order or
judgment of any court or governmental authority enjoining, restraining or otherwise prohibiting such application, the Company’s obligations under this Indenture and the Notes shall be revived and reinstated as though no deposit had occurred
pursuant to this Article 8 until such time as the Trustee or Paying Agent is permitted to apply all such money and any shares of Common Stock or other property due in respect of converted Notes in accordance with this Article 8;
provided, however, that, if the Company has made any payment of interest on or principal of any Notes because of the reinstatement of its obligations, the Company shall be subrogated to the rights of the Holders of such Notes to
receive such payment from the money held by the Trustee or Paying Agent. 
 ARTICLE 9 

Amendments 
 SECTION 9.01.
Without Consent of Holders. The Company and the Trustee may amend this Indenture or the Notes without notice to or consent of any Holder: 

(a) to provide for conversion rights of Holders and the Company’s repurchase obligations in connection with a Fundamental
Change in the event of any reclassification of the Common Stock, merger or consolidation, or sale, conveyance, transfer, lease or other disposition of all or substantially all of the property and assets of the Company and its Subsidiaries taken as a
whole; 

  
 45 

 (b) to provide for the assumption of the Company’s obligations to the
Holders in the event of a merger or consolidation, or sale, conveyance, transfer, lease or other disposition of all or substantially all of the property and assets of the Company and its Subsidiaries taken as a whole; 

(c) to secure the Notes; 

(d) to surrender any right or power conferred upon the Company; 

(e) to add to the Company’s covenants or Events of Default for the benefit of the Holders; 

(f) to cure any ambiguity or correct or supplement any inconsistent or otherwise defective provision contained in this
Indenture; provided that such modification or amendment does not adversely affect the interests of the Holders in any respect; 

(g) to make any provision with respect to matters or questions arising under this Indenture that the Company may deem necessary
or desirable and that shall not be inconsistent with provisions of this Indenture; provided that such change or modification does not, in the good faith opinion of the Board of Directors, adversely affect the interests of the Holders in any
respect; 
 (h) to increase the Conversion Rate; 

(i) to irrevocably elect a Settlement Method or a Specified Dollar Amount, in each case no later than March 1, 2024, or
eliminate the Company’s right to elect a Settlement Method; 
 (j) to comply with the requirements of the SEC in order
to effect or maintain the qualification of this Indenture under the Trust Indenture Act; 
 (k) to add guarantees of
obligations under the Notes in accordance with Section 4.11 or otherwise; 
 (l) to provide for a successor Trustee; and

 (m) conform the provisions of this Indenture to any provision of the “Description of the Notes” in the
Preliminary Offering Memorandum as supplemented by the related pricing term sheet dated May 29, 2019. 
 After a modification or
amendment under this Section becomes effective, the Company shall send to the Holders a notice briefly describing such modification or amendment. However, the failure to give such notice to all Holders, or any defect in the notice, shall not impair
or affect the validity of the modification or amendment under this Section. 

  
 46 

 SECTION 9.02. With Consent of Holders. The Company and the Trustee may modify or
amend this Indenture or the Notes with the written consent or affirmative vote (including, without limitation, consents obtained in connection with a purchase of, or tender offer or exchange offer for, Notes) of the Holders of a majority in
aggregate principal amount of the Notes then outstanding, without notice to any other Holder. However, without the written consent or the affirmative vote (including, without limitation, consents obtained in connection with a purchase of, or tender
offer or exchange offer for, Notes) of each Holder of an outstanding Note affected by such change, an amendment may not: 

(a) change the Maturity Date; 

(b) reduce the rate or extend the time for payment of interest on any Notes; 

(c) reduce the principal amount of any Notes; 

(d) reduce any amount payable upon repurchase of any Notes upon a Fundamental Change; 

(e) impair the right of a Holder to receive payment of or with respect to, or the conversion consideration due upon the
conversion of, any Notes or institute suit for receipt of payment of or with respect to, or the conversion consideration due upon the conversion of, any Notes; 

(f) change the currency in which any Notes is payable; 

(g) change the Company’s obligation to repurchase any Notes upon a Fundamental Change in a manner adverse to the Holders;

 (h) affect the right of a Holder to convert any Notes into cash and, if applicable, shares of the Common Stock or reduce
the number of shares of Common Stock or amount of property, including cash, receivable upon conversion pursuant to the terms of this Indenture; 

(i) make any change in Section 6.05 or the second sentence of this Section 9.02; or 

(j) reduce the percentage of the Notes required for consent to any modification of this Indenture that does not require the
consent of each affected Holder. 
 It shall not be necessary for the consent of the Holders under this Section to approve the particular
form of any proposed modification or amendment. It is sufficient if such consent approves the substance of the proposed modification or amendment. 

After a modification or amendment under this Section becomes effective, the Company shall mail to Holders a notice briefly describing such
modification or amendment. However, the failure to give such notice to all Holders, or any defect in the notice, shall not impair or affect the validity of the modification or amendment under this Section. 

  
 47 

 SECTION 9.03. Compliance with Trust Indenture Act. Every amendment to this Indenture
or the Notes shall comply with the Trust Indenture Act as then in effect. 
 SECTION 9.04. Revocation and Effect of Consents and
Waivers. A consent to an amendment or a waiver by a Holder shall bind the Holder and every subsequent Holder of that Note or portion of the Note that evidences the same debt as the consenting Holder’s Note, even if notation of the consent
or waiver is not made on the Note. However, any such Holder or subsequent Holder may revoke the consent or waiver as to such Holder’s Note or portion of the Note if the Trustee receives the notice of revocation before the date the amendment or
waiver becomes effective. An amendment or waiver becomes effective once both (i) the requisite number of consents have been received by the Company or the Trustee and (ii) such amendment or waiver has been executed by the Company and the
Trustee. 
 The Company may, but shall not be obligated to, fix a record date for the purpose of determining the Holders entitled to give
their consent or take any other action described above or required or permitted to be taken pursuant to this Indenture. If a record date is fixed, then notwithstanding the immediately preceding paragraph, those Persons who were Holders at such
record date (or their duly designated proxies), and only those Persons, shall be entitled to give such consent or to revoke any consent previously given or to take any such action, whether or not such Persons continue to be Holders after such record
date. No such consent shall be valid or effective for more than 120 calendar days after such record date. 
 SECTION 9.05. Notation on or
Exchange of Notes. If an amendment changes the terms of a Note, the Trustee may require the Holder of the Note to deliver the Note to the Trustee. The Trustee may place an appropriate notation on the Note regarding the changed terms and return
it to the Holder. Alternatively, if the Company or the Trustee so determines, the Company in exchange for the Note shall issue and the Trustee shall authenticate a new Note that reflects the changed terms. Failure to make the appropriate notation or
to issue a new Note shall not affect the validity of such amendment. 
 SECTION 9.06. Trustee to Sign Amendments. The Trustee shall
sign any amendment authorized pursuant to this Article 9 if the amendment does not adversely affect the rights, duties, liabilities or immunities of the Trustee. If it does, the Trustee may but need not sign it. In signing such amendment the Trustee
shall be entitled to receive, and (subject to Sections 7.01 and 7.02) shall be fully protected in relying upon, in addition to the documents required by Section 11.04, an Officers’ Certificate and an Opinion of Counsel stating that such
amendment is authorized or permitted by this Indenture and that such amendment is the legal, valid and binding obligation of the Company enforceable against it in accordance with its terms, subject to customary exceptions, and complies with the
provisions hereof (including Section 9.03). 

  
 48 

 ARTICLE 10 

Conversion of Notes 

SECTION 10.01. Right to Convert. Upon compliance with the provisions of this Article 10, a Holder may convert, at such Holder’s
option, its Notes based on the Conversion Rate (the “Conversion Obligation”). Unless the Company has previously purchased the Notes, at any time prior to 5:00 p.m., New York City time, on the Business Day immediately preceding
March 1, 2024, Holders shall have the right to convert any portion of the principal amount of any Notes that is an integral multiple of $1,000 only under the following circumstances: 

(1) Conversion Based on Common Stock Price. On any date during any calendar quarter (and only during such calendar
quarter) beginning after September 30, 2019, if the Closing Sale Price for the Common Stock was more than 130% of the applicable Conversion Price on each applicable Trading Day for at least 20 Trading Days (whether or not consecutive) in the
period of the 30 consecutive Trading Days ending on the last Trading Day of the immediately preceding previous calendar quarter; 

(2) Conversion Upon Specified Corporate Transactions. If the Company: 

(i) distributes to all or substantially all holders of its Common Stock any rights, options or warrants (other than in
connection with a stockholder rights plan prior to separation of such rights from the shares of its Common Stock) entitling them to purchase, for a period of 45 calendar days or less from the issuance date for such distribution, shares of its Common
Stock at a price per share less than the average Closing Sale Price of the Common Stock for the ten consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the declaration date for such distribution; or 

(ii) distributes to all or substantially all holders of its Common Stock any cash or other assets, debt securities or rights to
purchase securities of the Company (other than pursuant to a rights plan), which distribution has a per share value exceeding 10% of the Closing Sale Price of the Common Stock on the Trading Day immediately preceding the declaration date for such
distribution, 
 then, in each case, the Company shall notify all Holders at least 50 Scheduled Trading Days prior to the Ex-Dividend Date for such distribution. Once the Company has given such notice, a Holder may surrender all or a portion of its Notes for conversion at any time until the earlier of 5:00 p.m., New York City time, on
the Business Day immediately preceding the Ex-Dividend Date or the Company’s announcement that such distribution shall not take place. A Holder may not convert any of its Notes based on this
Section 10.01(2) if as a result of holding its Notes such Holder shall otherwise participate in the distribution, without having to convert the Notes, at the same time and on the same terms as holders of the Common Stock as if such Holder held
a number of shares of Common Stock equal to the Conversion Rate on the Record Date of such distribution for each $1,000 principal amount of Notes held by such Holder (calculated on an aggregate basis per Holder); 

(iii) is a party to (A) a consolidation, merger or binding share exchange pursuant to which the Common Stock would be
converted into cash, securities and/or other property or (B) a sale, conveyance, transfer, lease or other disposition of all or substantially all of the property and assets of the Company and its Subsidiaries taken as a whole, in either case
that does not constitute a 

  
 49 

 
Fundamental Change. The Company shall notify the Holders of such transaction in writing no later than the actual effective date of such transaction. In such event, a Holder shall have the right
to convert its Notes at any time on or after the effective date of such transaction until the earlier of (x) 35 Trading Days after the effective date of such transaction and (y) the second Scheduled Trading Day immediately preceding the
Maturity Date. 
 (3) Conversion Upon a Fundamental Change. If a Fundamental Change occurs, a Holder shall have the
right to convert its Notes at any time beginning on the Business Day following the effective date of such Fundamental Change and prior to 5:00 p.m., New York City time, on the Business Day immediately preceding the repurchase date relating to such
Fundamental Change until the earlier of (i) the related Fundamental Change Repurchase Date and (ii) the second Scheduled Trading Day immediately preceding the Maturity Date. The Company shall notify all Holders of any Fundamental Change in
writing no later than the actual effective date of such transaction. If a Holder has submitted all or a portion of Notes for repurchase, unless such Holder has validly withdrawn such Notes in a timely fashion, such Holder’s conversion rights
with respect to the Notes so subject to repurchase shall expire at 5:00 p.m., New York City time, on the Business Day immediately preceding the Fundamental Change Repurchase Date, unless the Company defaults in the payment of the Fundamental Change
Repurchase Price. If a Holder has submitted any Notes for repurchase, such Notes may be converted only if such Holder submits a valid withdrawal notice, and, if the Notes submitted are evidenced by a Global Note, such Holder complies with
appropriate Depositary procedures; and 
 (4) Conversion Upon Satisfaction of Trading Price Condition. During the five
Business Day period following any five consecutive Trading Day period in which the Trading Price per $1,000 principal amount of Notes, as determined following a request by a Holder in accordance with the procedures set forth in this
Section 10.01(4), for each Trading Day of such five (5) Trading Day period was less than 98% of the product of the Closing Sale Price of the Common Stock and the Conversion Rate on such Trading Day. The Company shall have no obligation to
determine the Trading Price of the Notes unless and until a Holder requests that the Company do so. Once a Holder makes such a request, the Company shall be obligated to, and shall, determine the Trading Price of the Notes for each Trading Day
beginning on the Trading Day following the Business Day on which such request is received (provided that if the request is made on a day other than a Business Day, such request shall be deemed made on the first Business Day after receipt)
until a Trading Day occurs on which the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Closing Sale Price of the Common Stock and the Conversion Rate on such Trading Day. 

Commencing on March 1, 2024, at any time prior to 5:00 p.m., New York City time, on the second Scheduled Trading Day immediately
preceding the Maturity Date, a Holder may, at such Holder’s option, convert the Notes, in multiples of $1,000 principal amount. 

  
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 SECTION 10.02. Conversion Procedures; Settlement Upon Conversion; No Adjustment for
Interest or Dividends; Cash Payments in Lieu of Fractional Shares. (a) In order to exercise the conversion right with respect to any Notes in certificated form, a Holder must: 

(i) complete and manually sign an irrevocable notice of conversion in the form entitled “Form of Conversion Notice”
attached to the reverse of such certificated Note (or a facsimile thereof) (a “Conversion Notice”); 
 (ii)
deliver such Conversion Notice and certificated Note to be converted to the Conversion Agent at the office of the Conversion Agent; 

(iii) to the extent any shares of Common Stock issuable upon conversion are to be issued in a name other than the
Holder’s, furnish appropriate endorsements and transfer documents as may be required by the Conversion Agent or the Company’s Common Stock transfer agent; 

(iv) if required pursuant to Section 2.03(c), pay funds equal to interest payable on the next Interest Payment Date to
which such Holder is not entitled; and 
 (v) if required pursuant to Section 10.02(g), pay all transfer or similar
taxes, if any. 
 In order to exercise the conversion right with respect to any interest in a Global Note, a Holder must: 

(i) deliver to the Depositary the appropriate instruction form for conversion pursuant to the Depositary’s conversion
program; 
 (ii) to the extent any shares of Common Stock issuable upon conversion are to be issued in a name other than the
Holder’s, furnish appropriate endorsements and transfer documents as may be required by the Conversion Agent or the Company’s Common Stock transfer agent; 

(iii) if required pursuant to Section 2.03(c), pay funds equal to interest payable on the next Interest Payment Date to
which such Holder is not entitled; and 
 (iv) if required pursuant to Section 10.02(g), pay all transfer or similar
taxes, if any. 
 The date that the Holder satisfies the foregoing requirements is the “Conversion Date.” The Notes shall
be deemed to have been converted immediately prior to 5:00 p.m., New York City time, on the Conversion Date. The Person in whose name any shares of the Common Stock shall be issuable upon such conversion shall become the holder of record of such
shares as of 5:00 p.m., New York City time, on the last Trading Day of the relevant Observation Period. 

  
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 (b) Subject to this Section 10.02 and Section 11.15, upon conversion of any Note,
the Company shall, at its election, pay or deliver, as the case may be, to the converting Holder, in full satisfaction of its Conversion Obligation, cash (“Cash Settlement”), shares of Common Stock (“Physical
Settlement”) or a combination of cash and shares of Common Stock (“Combination Settlement”), as set forth in this Section 10.02. 

(i) All conversions occurring on or after March 1, 2024 shall be settled using the same Settlement Method and the same
relative proportion of cash and/or shares of Common Stock as all other conversions occurring on or after March 1, 2024. If the Company elects a Settlement Method for conversions occurring on or after March 1, 2024, the Company shall
deliver notice to Holders through the Trustee of such Settlement Method the Company has selected no later than March 1, 2024. If the Company does not timely elect a Settlement Method, the Company shall no longer have the right to elect Cash
Settlement or Physical Settlement and the Company shall be deemed to have elected Combination Settlement in respect of its Conversion Obligation, and the Specified Dollar Amount per $1,000 principal amount of Notes shall be equal to $1,000. If the
Company has timely elected Combination Settlement in respect of any conversion, but fails to notify the Conversion Agent of the Specified Dollar Amount per $1,000 principal amount of Notes, the Specified Dollar Amount shall be deemed to be $1,000.

 (ii) With respect to conversions occurring prior to March 1, 2024, the Company shall use the same Settlement Method
(including the same relative proportion of cash and/or shares of Common Stock) for all conversions occurring on the same Conversion Date. Except for any conversions that occur on or after March 1, 2024, the Company shall not have any obligation
to use the same Settlement Method with respect to conversions that occur on different Conversion Dates. Prior to March 1, 2024, if the Company elects a Settlement Method, the Company shall deliver notice to converting Holders through the
Trustee of such Settlement Method the Company has selected no later than the close of business on the Trading Day immediately following the relevant Conversion Date. 

(iii) The Company may at any time prior to March 1, 2024 irrevocably elect to settle all Conversion Obligations following
such election through Combination Settlement with a Specified Dollar Amount. 
 (iv) The cash, shares of Common Stock or
combination of cash and shares of Common Stock payable or deliverable by the Company in respect of any conversion of Notes (the “Settlement Amount”) shall be computed by the Company as follows: 

(A) if the Company elects to satisfy its Conversion Obligation in respect of such conversion by Physical Settlement, the
Company shall deliver to the converting Holder in respect of each $1,000 principal amount of Notes being converted a number of shares of Common Stock equal to the Conversion Rate on the Conversion Date (plus cash in lieu of any fractional share of
Common Stock issuable upon conversion); 

  
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 (B) if the Company elects to satisfy its Conversion Obligation in respect of
such conversion by Cash Settlement, the Company shall pay to the converting Holder in respect of each $1,000 principal amount of Notes being converted cash in an amount equal to the sum of the Daily Conversion Values for each of the 40 consecutive
VWAP Trading Days during the relevant Observation Period; and 
 (C) if the Company elects (or is deemed to have elected) to
satisfy its Conversion Obligation in respect of such conversion by Combination Settlement, the Company shall pay and deliver, if applicable, to the converting Holder in respect of each $1,000 principal amount of Notes being converted a Settlement
Amount equal to the sum of the Daily Settlement Amounts for each of the 40 consecutive VWAP Trading Days during the relevant Observation Period (plus cash in lieu of any fractional share of Common Stock issuable upon conversion). 

If more than one Note shall be surrendered for conversion at any 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 hereby) so surrendered. 

(v) The Daily Settlement Amounts (if applicable) and the Daily Conversion Values (if applicable) shall be determined by the
Company promptly following the last VWAP Trading day of the relevant Observation Period. Promptly after such determination of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and, if applicable, 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) of the Daily Settlement Amounts or the Daily Conversion Values, as the case may be, and, if applicable, 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. 

(vi) Subject to the provisions of the Section 10.02 and Section 10.05, the Company shall pay or deliver, as the case
may be, the Settlement Amount due in respect of the Conversion Obligation on: 
 (A) if the Company elects Physical
Settlement (i) the second Business Day immediately following the relevant Conversion Date for conversions occurring prior to the final Regular Record Date preceding the Maturity Date or (ii) the Maturity Date for conversions occurring on
or after the final Regular Record Date preceding the Maturity Date; or 
 (B) the second Business Day immediately following
the last VWAP Trading Day of the relevant Observation Period, if the Company elects Cash Settlement or if the Company elects or is deemed to elect Combination Settlement. 

  
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 (c) Each conversion will be deemed to have been effected as to any Notes surrendered for
conversion on the applicable Conversion Date; provided, however, that the Person in whose name any shares of the Common Stock shall be issuable upon such conversion shall be treated as the Holder of record of such shares as of the
close of business on the Conversion Date, in the case of Physical Settlement, or the last VWAP Trading Day of the relevant Observation Period, in the case of combination settlement. 

Except as provided in the Notes or in this Article 10, no payment or other adjustment will be made for accrued interest on a converted Note,
and accrued interest, if any, will be deemed to be paid by the consideration paid to the Holder upon conversion. Such accrued interest, if any, shall be deemed to be paid in full rather than cancelled, extinguished or forfeited. 

(d) If a Holder converts any Notes after 5:00 p.m., New York City time, on the Regular Record Date for an interest payment but prior to the
corresponding Interest Payment Date, such Holder shall receive on the corresponding Interest Payment Date the interest accrued and unpaid on such Holder’s Notes, notwithstanding such Holder’s conversion of those Notes prior to the Interest
Payment Date, assuming such Holder was the Holder of record on the corresponding Regular Record Date. However, except as provided in the next sentence, at the time such Holder surrenders its Notes for conversion (whether or not such Holder was the
Holder of record), such Holder must pay the Company an amount equal to the interest (excluding any Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest) that has accrued and shall be paid on the
Notes being converted on the corresponding Interest Payment Date. Such Holder is not required to make such payment: 
 (1) if
such Holder converts its Notes after 5:00 p.m., New York City time, on May 15, 2024, which is the Regular Record Date immediately preceding the Maturity Date; 

(2) if such Holder converts its Notes in connection with a Fundamental Change and the Company has specified a Fundamental
Change Repurchase Date that is after a Regular Record Date and on or prior to the corresponding Interest Payment Date; or 

(3) to the extent of any overdue interest (including overdue Rule 144 Additional Interest, Reporting Additional Interest or
Free Transferability Additional Interest, if any), if overdue interest (or overdue Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest) exists at the time of conversion with respect to such
Holder’s Notes. 
 If a Holder has already delivered a Fundamental Change Repurchase Notice pursuant to Section 3.01 with respect
to a Note, such Holder may not surrender that Note for conversion until such Holder has validly withdrawn the Fundamental Change Repurchase Notice in accordance with Section 3.02, except as to a portion of such Note that is not subject to such
Fundamental Change Repurchase Notice. 

  
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 (e) In case any certificated 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 certificated Note so surrendered, without charge to such Holder, a new certificated Note or Notes in authorized denominations in an
aggregate principal amount equal to the unconverted portion of the surrendered certificated Note. 
 (f) Upon the conversion of an interest
in a Global Note, the Trustee and the Depositary shall reduce the principal amount of such Global Note in their records. 
 (g) The issue of
stock certificates on conversions of Notes shall be made without charge to the converting holder of Notes for any taxes or duties in respect of the issue thereof. The Company shall not, however, be required to pay any such tax or duty which may be
payable in respect of any transfer involved in the issue and delivery of stock in any name other than that of the holder of any Notes converted, and the Company shall not be required to issue or deliver any such stock certificate unless and until
the Person or Persons requesting the issue thereof shall have paid to the Company the amount of such tax or duty or shall have established to the satisfaction of the Company that such tax has been paid. 

(h) Except as provided in Section 10.02, upon conversion, Holders shall not receive any separate cash payment of accrued and unpaid
interest (excluding any Rule 144 Additional Interest, Reporting Additional Interest or Free Transferability Additional Interest) on the Notes. Accrued and unpaid interest (excluding any Rule 144 Additional Interest, Reporting Additional Interest or
Free Transferability Additional Interest) to the Conversion Date shall be deemed to be paid in full with the cash paid and shares of Common Stock issued, if any, upon conversion rather than cancelled, extinguished or forfeited. 

(i) The Company shall not issue fractional shares of Common Stock upon conversion of the Notes. If any fractional shares of Common Stock would
be issuable upon the conversion of any Note or Notes, the Company shall instead pay cash in lieu of fractional share of Common Stock issuable upon conversion in an amount based on (i) the Daily VWAP on the relevant Conversion Date if the
Company elects Physical Settlement or (ii) the Daily VWAP on the last VWAP Trading Day of the relevant Observation Period if the Company elects or is deemed to elect Combination Settlement. 

(j) Except as described under Section 10.04, the Company shall not make any payment or other adjustment for dividends on any Common Stock
issued upon conversion of the Notes. 
 (k) If the Notes become convertible under any provision of Section 10.01, the Company shall
promptly notify the Trustee in writing and issue a press release and make such press release available on its website. 
 SECTION 10.03.
Adjustment to Conversion Rate Upon a Non-Stock Change of Control. If and only to the extent a Holder elects to convert its Notes in connection with a transaction described under clauses (1), (3)
(without giving effect to the proviso to clause (3)) or (4) of the definition of Fundamental Change pursuant to which 10% or more of the consideration for the Common Stock (other than cash payments for fractional shares and cash payments made

  
 55 

 
in respect of dissenters’ appraisal rights) in such Fundamental Change transaction consists of cash or other securities or property that are not shares of common stock traded or scheduled to
be traded immediately following such transaction on the NASDAQ Global Select Market, the NASDAQ Global Market or The New York Stock Exchange (or any of their respective successors) (a “Non-Stock Change
of Control”), the Conversion Rate shall be increased by an additional number of shares of Common Stock (the “Additional Shares”). 

The number of Additional Shares shall be determined by reference to the table below, based on the date on which the Non-Stock Change of Control becomes effective (the “Effective Date”) and the Stock Price paid (or deemed paid) per share for the Common Stock in such
Non-Stock Change of Control. 
 The Company shall notify the Holders of the Effective Date of any Non-Stock Change of Control no event than the actual Effective Date of such transaction. 
 A conversion
of the Notes shall be deemed for these purposes to be “in connection with” a Non-Stock Change of Control if the Conversion Notice is received by the Conversion Agent following the Effective Date of
the Non-Stock Change of Control but before 5:00 p.m., New York City time, on the Business Day immediately preceding the related Fundamental Change Repurchase Date. 

The number of Additional Shares set forth in the table below shall be adjusted in the same manner as and as of any date on which the
Conversion Rate of the Notes is adjusted pursuant to this Article 10. The Stock Prices set forth in the first row of the table below (i.e., the column headers) shall be simultaneously adjusted to equal the Stock Prices immediately prior to
such adjustment, multiplied by a fraction, the numerator of which shall be the Conversion Rate immediately prior to the adjustment and the denominator of which shall be the Conversion Rate as so adjusted. 

The following table sets forth the number of Additional Shares per $1,000 principal amount of Notes by which the Conversion Rate shall be
increased upon conversion in connection with a Non-Stock Change of Control: 
  

																																													
	 	  	Stock Price	 
	  	  
	  
	 
	 Effective Date
	  	$62.53	 	  	$65.00	 	  	$70.00	 	  	$75.00	 	  	$80.00	 	  	$81.29	 	  	$90.00	 	  	$100.00	 	  	$125.00	 	  	$150.00	 	  	$175.00	 
	 June 3, 2019
	  	 	3.6905	 	  	 	3.3182	 	  	 	2.6772	 	  	 	2.1651	 	  	 	1.7541	 	  	 	1.6619	 	  	 	1.1545	 	  	 	0.7592	 	  	 	0.2533	 	  	 	0.0668	 	  	 	0.0051	 
	 June 1, 2020
	  	 	3.6905	 	  	 	3.3357	 	  	 	2.6617	 	  	 	2.1267	 	  	 	1.7004	 	  	 	1.6052	 	  	 	1.0868	 	  	 	0.6913	 	  	 	0.2074	 	  	 	0.0445	 	  	 	0.0006	 
	 June 1, 2021
	  	 	3.6905	 	  	 	3.2825	 	  	 	2.5747	 	  	 	2.0176	 	  	 	1.5788	 	  	 	1.4817	 	  	 	0.9609	 	  	 	0.5774	 	  	 	0.1425	 	  	 	0.0184	 	  	 	0.0000	 

  
 56 

																																													
	 June 1, 2022
	  	 	3.6905	 	  	 	3.1889	 	  	 	2.4327	 	  	 	1.8451	 	  	 	1.3911	 	  	 	1.2920	 	  	 	0.7753	 	  	 	0.4187	 	  	 	0.0681	 	  	 	0.0007	 	  	 	0.0000	 
	 June 1, 2023
	  	 	3.6905	 	  	 	3.0586	 	  	 	2.2107	 	  	 	1.5639	 	  	 	1.0819	 	  	 	0.9802	 	  	 	0.4825	 	  	 	0.1927	 	  	 	0.0043	 	  	 	0.0000	 	  	 	0.0000	 
	 June 1, 2024
	  	 	3.6905	 	  	 	3.0828	 	  	 	1.9839	 	  	 	1.0315	 	  	 	0.1982	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 

 provided, however, that: 

(1) if the exact Stock Price is between two Stock Prices listed in the table above under the column titled “Stock
Price,” or if the exact Effective Date of such Non-Stock Change of Control is between two Effective Dates listed in the table above in the rows immediately below the title “Effective Date,” then
the number of Additional Shares shall be determined by straight-line interpolation between the number of Additional Shares set forth for the higher and lower Stock Price amounts and the earlier and later Effective Dates, as applicable, based on a 360-day year; and 
 (2) (a) if the exact Stock Price is greater than $175.00 per share
(subject to adjustment in the same manner and at the same time as the Stock Prices listed in the table above), then the Conversion Rate shall not be increased, or (b) if the exact Stock Price is less than $62.53 per share (subject to adjustment
in the same manner and at the same time as the Stock Prices listed in the table above), then the Conversion Rate shall not be increased. 

In no event shall the total number of shares of Common Stock issuable upon conversion exceed 15.9923 shares per $1,000 principal amount of
Notes, subject to adjustment in the same manner as the Conversion Rate pursuant to this Article 10. 
 SECTION 10.04. Adjustment of
Conversion Rate. The Conversion Rate shall be adjusted from time to time by the Company as follows: 
 (a) If the Company shall issue
shares of Common Stock to all or substantially all holders of Common Stock as a dividend or distribution on shares of Common Stock, or if the Company effects a share split or share combination, the Conversion Rate shall be adjusted based on the
following formula: 
  

													
		 	CR1	 	=	 	CR0	 	 ×
	  	  OS1  	  	
	  	  
	  	
		 		 		 		 		  	OS0	  	

 where, 
  

			
	CR1 =	 	the Conversion Rate in effect immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such dividend or distribution or the effective date of such share split or share
combination, as the case may be;
		
	CR0 =	 	the Conversion Rate in effect immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such dividend or distribution or the effective date of such share split or share
combination, as the case may be;

  
 57 

			
	OS0 =	 	the number of shares of Common Stock outstanding immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such dividend or distribution or the effective date of such
share split or share combination, as the case may be; and
		
	OS1 =	 	the number of shares of the Common Stock that would be outstanding immediately after, and solely as a result of, such dividend, distribution, share split or share combination, as the case may be.

 Any adjustment made under this clause (a) shall become effective immediately after 9:00 a.m., New
York City time, on such Ex-Dividend Date or effective date, as the case may be. 
 (b) If the Company
shall distribute to all or substantially all holders of its Common Stock any rights, options or warrants (other than in connection with a stockholder rights plan) entitling them to purchase, for a period of 45 calendar days or less from the issuance
date for such distribution, shares of the Common Stock at a price per share less than the average Closing Sale Price of the Common Stock for the ten Trading Day period ending on, and including, the Trading Day immediately preceding the declaration
date for such distribution, the Conversion Rate shall be increased based on the following formula: 
  

													
		 	CR1	 	=	 	CR0	 	×	 	    OS0 + X    	  	
	 	  
	  	
		 		 		 		 		 	OS0 + Y	  	

 where 
  

			
	CR1 =	  	the Conversion Rate in effect immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution;
		
	CR0 =	  	the Conversion Rate in effect immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution;
		
	OS0 =	  	the number of shares of the Common Stock outstanding immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution;
		
	X =	  	the total number of shares of the Common Stock issuable pursuant to such rights, options or warrants; and
		
	Y =	  	the number of shares of the Common Stock equal to the aggregate price payable to exercise such rights, options or warrants, divided by the average of the Closing Sale Prices of the Common Stock over the ten consecutive Trading Day
period ending on the Trading Day immediately preceding the Ex-Dividend Date for such distribution.

  
 58 

 Any increase made under this clause (b) shall be made successively whenever any such
rights, options or warrants are issued and shall become effective immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution. To the extent that such rights, options or
warrants are not exercised prior to their expiration or shares of the Common Stock are not delivered upon exercise of such rights, options or warrants, the Conversion Rate shall be readjusted 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. 

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 Closing Sale Prices for the ten consecutive Trading Day period ending on the Trading Day immediately preceding the Ex-Dividend Date for such distribution, and in determining the
aggregate offering price of such shares of the 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 and the value of
such consideration (if other than cash, to be determined in good faith by the Board of Directors). 
 Subject in all respects to
Section 10.08, rights, options or warrants distributed by the Company to all or substantially all holders of its Common Stock entitling the holders thereof to subscribe for or purchase shares of the Company’s Capital Stock, including
Common Stock (either initially or under certain circumstances), which rights, options or warrants, until the occurrence of a specified event or events (each a “Trigger Event”): 

 

	 	(i)	 are deemed to be transferred with such Common Stock; 

 

	 	(ii)	 are not exercisable; and 

 

	 	(iii)	 are also issued in respect of future issuances of the Common Stock, 

shall be deemed not to have been distributed for purposes of this Section 10.04(b) or Section 10.04(c), as the case may be, (and no adjustment to
the Conversion Rate under this Section 10.04(b) or Section 10.04(c), as the case may be, shall be required) until the occurrence of the earliest Trigger Event, whereupon such rights, options or warrants shall be deemed to have been
distributed and an appropriate adjustment (if any is required) to the Conversion Rate shall be made under this Section 10.04(b) or Section 10.04(c), as the case may be. 

If any such right, option or warrant, including any such existing rights, options or warrants distributed prior to the date of this Indenture,
are subject to events, upon the occurrence of which such rights, options or warrants become exercisable to purchase different securities, evidences of indebtedness or other assets, then the date of the occurrence of any and each such event shall be
deemed to be the date of distribution and record date with respect to new rights, options or warrants with such rights (and a termination or expiration of the existing rights, options or warrants without exercise by any of the holders thereof). 

In addition, in the event of any distribution (or deemed distribution) of rights, options or warrants, or any Trigger Event or other event (of
the type described in the preceding sentence) with respect thereto that was counted for purposes of calculating a distribution amount for which an adjustment to the Conversion Rate under this Section 10.04(b) or Section 10.04(c), as the
case may be, was made: 

  
 59 

 (1) in the case of any such rights, options or warrants that shall all have
been redeemed or repurchased without exercise by any holders thereof, the Conversion Rate shall be readjusted upon such final redemption or repurchase to give effect to such distribution or Trigger Event, as the case may be, as though it were a cash
distribution, equal to the per share redemption or repurchase price received by a holder or holders of Common Stock with respect to such rights, options or warrants (assuming such holder had retained such rights, options or warrants), made to all
holders of Common Stock as of the date of such redemption or repurchase; and 
 (2) in the case of such rights, options or
warrants that shall have expired or been terminated without exercise by any holders thereof, the Conversion Rate shall be readjusted as if such rights, options or warrants had not been issued. 

(c) If the Company distributes shares of its Capital Stock, evidences of its indebtedness or other of its assets or property to all or
substantially all holders of Common Stock, excluding: 
 (i) dividends or distributions as to which adjustment is required to
be effected pursuant to clause (a) or (b) above; 
 (ii) dividends or distributions paid exclusively in cash as to which
adjustment is required to be effected pursuant to clause (d) below; 
 (iii) rights issued pursuant to a stockholder
rights plan of the Company, which are addressed by clause (b) above or in Section 10.08; and 
 (iv) Spin-Offs
described below in the second paragraph of this clause (c), 
 then the Conversion Rate shall be increased based on the following formula: 

 

													
		 	CR1	 	=	 	CR0	 	×	 	        SP0        	  	
	 	  
	  	
		 		 		 		 		 	SP0 – FMV	  	

 where, 
  

			
	CR1 =	  	the Conversion Rate in effect immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution;
		
	CR0 =	  	the Conversion Rate in effect immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution;
		
	SP0 =	  	the average of the Closing Sale Prices of the Common Stock over the ten 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 in good faith by the Board of Directors or a committee thereof) of the shares of Capital Stock, evidences of indebtedness, assets or property distributed with respect to each outstanding share of
the Common Stock on the Ex-Dividend Date for such distribution.

  
 60 

 Notwithstanding the foregoing, if “FMV” (as defined above) is equal to or greater
than the “SP0” (as defined above),or if the difference between “SP0” and “FMV” is less than $1.00, in lieu
of the foregoing increase, each Holder 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, the amount and kind of the Capital Stock, evidences of the
Company’s indebtedness, securities or other assets or property of the Company that such Holder would have received as 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. 
 Any increase made under the portion of this clause
(c) above shall become effective immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such distribution. 

With respect to an adjustment pursuant to this clause (c) where there has been a payment of a dividend or other distribution on the Common
Stock in 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 and such Capital Stock or similar equity interest is listed on a national or regional
securities exchange (a “Spin-Off”) the Conversion Rate shall be increased based on the following formula: 
  

													
		 	CR1	 	=	 	CR0	 	×	  	    FMV + MP0    	  	
	  	  
	  	
		 		 		 		 		  	MP0	  	

 where, 
  

			
	CR1 =	  	Conversion Rate in effect immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for the Spin-Off;
		
	CR0 =	  	the Conversion Rate in effect immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for the Spin-Off;
		
	FMV =	  	the average of the Closing 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 over the first ten consecutive Trading Day period
immediately following, and including, the effective date for such Spin-Off (such period, the “Valuation Period”); and
		
	MP0 =	  	the average of the Closing Sale Prices of the Common Stock over the Valuation Period.

 Any adjustment to the Conversion Rate under the preceding paragraph of this clause (c) shall be
made immediately after 9:00 a.m., New York City time, on the day after the last day of the Valuation Period, but shall be given effect as of 9:00 a.m., New York City time, on the Ex-Dividend Date for the Spin-Off. The Company shall delay the settlement of any Notes where the final day of the related Observation Period occurs during the Valuation Period. In such event, the Company shall pay the cash and deliver any
shares of the Common Stock due upon conversion (based on the adjusted Conversion Rate as described above) on the second Business Day immediately following the last day of the Valuation Period. 

  
 61 

 (d) If the Company pays any cash dividends or distributions paid exclusively in cash to all
or substantially all holders of its Common Stock (other than dividends or distributions made in connection with the Company’s liquidation, dissolution or winding-up or upon a merger, consolidation or
sale, conveyance, transfer, lease or other disposition resulting in a change in the conversion consideration as described under Section 10.05), other than a regular quarterly cash dividend that does not exceed $0.35 per share (the
“Dividend Threshold Amount”), the Conversion Rate shall be increased based on the following formula: 
  

													
		 	CR1	 	=	 	CR0	 	×	  	      SP0 – DTA      	  	
	  	  
	  	
		 		 		 		 		  	SP0 – C	  	

 where, 
  

			
	CR1 =	  	the Conversion Rate in effect immediately after 9:00 a.m., New York City time, on the Ex-Dividend Date for such dividend or distribution;
		
	CR0 =	  	the Conversion Rate in effect immediately prior to 9:00 a.m., New York City time, on the Ex-Dividend Date for such dividend or distribution;
		
	SP0 =	  	the average of the Closing Sale Prices of the Common Stock over the ten consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date for
such dividend or distribution (or, if the Company declares such dividend or distribution less than eleven Trading Days prior to such Ex-Dividend Date, ten shall be replaced with a smaller number of Trading
Days that shall have occurred after, and not including, such declaration date and prior to, but not including, such Ex-Dividend Date);
		
	DTA =	  	the Dividend Threshold Amount in effect on the Ex-Dividend Date for such dividend or distribution; provided that if the dividend or distribution is not a regular quarterly dividend, the
Dividend Threshold Amount shall be deemed to be zero; and
		
	C =	  	the amount in cash per share the Company distributes to holders of the Common Stock

 The Dividend Threshold Amount is subject to adjustment on an inversely proportional basis whenever the
Conversion Rate is adjusted; provided that no adjustment shall be made to the Dividend Threshold Amount for any adjustment to the Conversion Rate under this clause (d). 

Notwithstanding the foregoing, if “C” (as defined above) is equal to or greater than “SP0” (as defined above), or if the difference between “SP0” and “C” is less than $1.00, in lieu of the foregoing
increase, each Holder shall receive, in respect of each $1,000 principal amount thereof, 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 as if such Holder
owned a number of shares of the Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for such cash dividend or distribution. 

  
 62 

 Any increase made under this clause (d) shall become effective immediately after 9:00
a.m., New York City time, on the Ex-Dividend Date for such cash dividend or distribution. 
 (e) If
the Company or any of its Subsidiaries makes a payment in respect of a tender offer or exchange 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 Closing Sale Price of the Common Stock on the Trading Day next succeeding the last date on which tenders or exchanges may be made pursuant to such tender or exchange offer (the “Expiration Date”), the Conversion Rate
shall be increased based on the following formula: 
  

													
		 	CR1	 	=	 	CR0	 	×	  	    AC + ( SP1 × OS1)    	  	
	  	  
	  	
		 		 		 		 		  	OS0 × SP1	  	

 where, 
  

			
	CR1 =	  	the Conversion Rate in effect immediately after 5:00 p.m., New York City time, on the Trading Day immediately following the Expiration Date;
		
	CR0 =	  	the Conversion Rate in effect immediately prior to 5:00 p.m., New York City time, on the Trading Day immediately following the Expiration Date;
		
	AC =	  	the aggregate value of all cash and any other consideration (as determined in good faith by the Board of Directors or a committee thereof) paid or payable for shares purchased in such tender or exchange offer;
		
	SP1 =	  	the average of the Closing Sale Prices of the Common Stock over the ten consecutive Trading Day period commencing on, and including, the Trading Day next succeeding the Expiration Date (the “Averaging
Period”);
		
	OS1 =	  	the number of shares of the Common Stock outstanding immediately after 5:00 p.m., New York City time, on the Expiration Date (after giving effect to such tender offer or exchange offer); and
		
	OS0 =	  	the number of shares of the Common Stock outstanding immediately prior to 5:00 p.m., New York City time, on the Expiration Date (prior to giving effect to such tender offer or exchange offer).

 Any adjustment to the Conversion Rate under this clause (e) shall be made immediately prior to 9:00
a.m., New York City time, on the day following the last day of the Averaging Period, but shall be given effect as of 9:00 a.m., New York City time, on the Trading Day immediately following the Expiration Date. The Company shall delay the settlement
of any Notes where the final day of the related Observation Period occurs during the Averaging Period. In such event, the Company shall pay cash and deliver any shares of the Common Stock due upon conversion (based on the adjusted Conversion Rate as
described above) on the second Business Day immediately following the last day of the Averaging Period. 

  
 63 

 Notwithstanding the foregoing, if a Conversion Rate adjustment becomes effective on any Ex-Dividend Date as described above and a Holder has converted its Notes prior to such Ex-Dividend Date such that such Ex-Dividend Date
falls during the relevant Observation Period and such Holder would be treated as the record holder of the shares of the Common Stock to be issued upon conversion on the Record Date of the relevant dividend, distribution or other event, then,
notwithstanding the foregoing Conversion Rate adjustment provisions, such Conversion Rate adjustment shall not be made for such converting Holder. Instead, such Holder shall be treated as if such Holder were the record owner of such shares of the
Common Stock (which shall be calculated on an unadjusted basis) and participate in the related dividend, distribution or other event giving rise to such adjustment. 

(f) To the extent permitted by law and any applicable stock exchange rules (including, if necessary, in compliance with any applicable stock
exchange shareholder approval requirement), the Company (i) may increase the Conversion Rate by any amount for a period of at least 20 Business Days and (ii) may (but is not required to) increase the Conversion Rate to avoid or diminish
income tax to holders of Common Stock or rights to purchase shares of 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 the
preceding sentences, the Company shall deliver a notice of the increase to the Trustee and Holders, which notice shall state the increased Conversion Rate and the period during which it shall be in effect. 

(g) All calculations and other determinations under this Article 10 shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000th) of a share. No adjustment pursuant to this Section 10.04 shall be made to the Conversion Rate unless such adjustment would require a change of at least 1% in the Conversion Rate
then in effect at such time. However, any adjustments that are less than 1% of the Conversion Rate shall be carried forward and taken into account in any subsequent adjustment, regardless of whether the aggregate adjustment is less than 1%, (i) upon
conversion of any Notes or (ii) prior to any Fundamental Change Repurchase Date, unless such adjustment has already been made. 
 (h)
Whenever the Conversion Rate is adjusted as herein provided, the Company shall issue a press release containing the relevant information, including, but not limited to, any applicable declaration date, and make this information available on its
website. In addition, the Company shall promptly file with the Trustee and any Conversion Agent other than the Trustee an Officers’ Certificate setting forth any applicable declaration date and 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 Officers’ 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 send such notice of such adjustment of the Conversion Rate to each Holder at its last address appearing on the Register within 20 calendar
days of the effective date of such adjustment. Failure to deliver such notice shall not affect the legality or validity of any such adjustment. 

  
 64 

 (i) Notwithstanding any of the foregoing clauses in this Section 10.04, the Conversion
Rate shall not be adjusted pursuant to this Section 10.04 if as a result of holding the Notes the Holders shall otherwise 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 in any of the transactions that would otherwise give rise to adjustment pursuant to this Section 10.04 without conversion of such Holder’s Notes as if such Holder held a number of shares of Common Stock equal to
the Conversion Rate on the Record Date of such distribution for each $1,000 principal amount of Notes held by such Holder (calculated on an aggregate basis per Holder). 

(j) Except as stated in this Section 10.04 and Section 10.08, the Company shall not adjust the Conversion Rate for the issuances of
shares of Common Stock or any securities convertible into or exchangeable for shares of Common Stock or rights to purchase shares of Common Stock or such convertible or exchangeable securities. 

(k) For purposes of this Section 10.04, the number of shares of Common Stock at any time outstanding shall not include shares 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. The Company shall not pay any dividend or make any distribution on shares of Common Stock held in the
treasury of the Company. 
 (l) Whenever any provision of this Article 10 requires the Company to calculate the Closing Sale Prices, the
VWAPs, the Daily Conversion Values or the Conversion Settlement Amount over, or based on, a span of multiple days (including an Observation Period), the Company shall make appropriate adjustments 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 the Closing Sale Prices,
the VWAPs, the Daily Conversion Values or the Conversion Settlement Amount is to be calculated. 
 SECTION 10.05. Effect of
Reclassifications, Business Combinations, Asset Sales and Corporate Events. If the Company: 
 (a) reclassifies or changes its Common
Stock (other than changes resulting from a subdivision or combination); or 
 (b) consolidates or merges with or into or enters into a
binding share exchange with any Person or sells, conveys, transfers, leases or otherwise disposes of all or substantially all of the property and assets of the Company and its Subsidiaries taken as a whole to another Person, 

and, in either case as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities or other property or assets
(including cash or any combination thereof), then at the effective date of such transaction (a “Merger Event”), the right to convert each outstanding $1,000 principal amount of Notes based on the Common Stock shall, without the
consent of any Holders, be changed into a right to convert each such Note based on the kind and amount of stock, other securities or other property or assets (including cash or any 

  
 65 

 
combination thereof) that a holder of a number of shares of Common Stock equal to the Conversion Rate immediately prior to such Merger Event would have owned or be entitled to receive (the
“Reference Property”). If the Merger 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),
the Reference Property into which the Notes shall become convertible shall be deemed to be the kind and amount of consideration actually received by holders of a majority of the Common Stock that voted for such an election (if electing between two
types of consideration) or holders of a plurality of the Common Stock that voted for such an election (if electing between more than two types of consideration), as the case may be. In all cases the provisions under Section 10.02 shall continue
to apply with respect to the calculation of the Conversion Settlement Amount, with the Daily Conversion Value, Daily Settlement Amount and the VWAP determined based on a unit of Reference Property that a holder of one share of the Common Stock would
have received in such transaction; provided, however, that if the holders of the Common Stock receive only cash in such Merger Event, the Conversion Settlement Amount shall equal the Conversion Rate in effect on the Conversion Date,
multiplied by the price paid per share of Common Stock in such transaction, and settlement of any conversion thereafter shall occur on the second Business Day following the applicable Conversion Date. The Company shall not become a
party to any such transaction unless its terms are consistent with the foregoing. 
 In connection with any Merger Event, the Dividend
Threshold Amount shall be subject to adjustment as described in clause (1), clause (2) or clause (3) below, as the case may be. 

(1) In the case of a Merger Event in which the Reference Property is composed entirely of shares of common stock (the “Merger Common
Stock”), the Dividend Threshold Amount at the effective time of such Merger Event shall be equal to (x) the Dividend Threshold Amount immediately prior to the effective time of such Merger Event, divided by (y) the
number of shares of Merger Common Stock that a holder of one share of Common Stock would receive in such Merger Event (such quotient rounded down to nearest cent) (subject to adjustment as provided in Section 10.04(d)). 

(2) In the case of a Merger Event in which the Reference Property is composed in part of shares of Merger Common Stock, the Dividend Threshold
Amount at the effective time of such Merger Event shall be equal to (x) the Dividend Threshold Amount immediately prior to the effective time of such Merger Event, multiplied by (y) the Merger Valuation Percentage for such
Merger Event (such product rounded down to nearest cent) (subject to adjustment as provided in Section 10.04(d)). 
 (3) For the
avoidance of doubt, in the case of a Merger Event in which the Reference Property is composed entirely of consideration other than shares of common stock, the Dividend Threshold Amount at and after the effective time of such Merger Event shall be
equal to zero. 

  
 66 

 In connection with the preceding paragraph, the following terms shall have the following
meanings: 
 (1) the “Merger Valuation Percentage” for any Merger Event shall be equal to (x) the arithmetic average of
the Closing Sale Prices of one share of such Merger Common Stock over the relevant Merger Valuation Period (determined as if references to “Common Stock” in the definition of “Closing Sale Price” were references to the
“Merger Common Stock” for such Merger Event) divided by (y) the arithmetic average of the Closing Sale Prices of one share of Common Stock over the relevant Merger Valuation Period. 

(2) the “Merger Valuation Period” for any Merger Event means the five consecutive Trading Day period immediately preceding,
but excluding, the effective date for such Merger Event. 
 The Company shall cause notice of the execution of such supplemental indenture
to be sent to each Holder, at the address of such Holder as it appears on the Register of the Notes maintained by the Registrar, within 20 calendar days after execution thereof. Failure to deliver such notice shall not affect the legality or
validity of such supplemental indenture. 
 The above provisions of this Section 10.05 shall similarly apply to successive
reclassifications, changes, consolidations, mergers, binding share exchanges, sales, conveyances, transfers, leases or other dispositions. 

(c) If this Section 10.05 applies to any event or occurrence, Section 10.04 shall not apply. 

SECTION 10.06. Certain Covenants. (a) The Company shall, prior to the issuance of any Notes hereunder, and from time to time as may be
necessary, reserve out of its authorized but unissued Common Stock or shares of Common Stock held in treasury, a sufficient number of shares of Common Stock, free of preemptive rights, to permit the conversion of the Notes. 

(b) The Company covenants that all shares of Common Stock issued upon conversion of Notes shall be duly and validly issued and fully paid and non-assessable by the Company and free from all taxes, liens and charges with respect to the issue thereof. 

(c) The Company shall endeavor promptly to comply with all federal and state securities laws regulating the issuance and delivery of shares of
Common Stock upon the conversion of Notes, if any, and shall cause to have listed or quoted and shall keep listed or quoted all such shares of Common Stock on each U.S. national securities exchange or automatic quotation system or over-the-counter or other domestic market on which the Common Stock is then listed or quoted. 

SECTION 10.07. Notice to Holders Prior to Certain Actions. Except where notice is required pursuant to Section 10.01, in case:

 (a) the Company shall declare a dividend (or any other distribution) on its Common Stock that would require an adjustment in the
Conversion Rate pursuant to Section 10.04; or 

  
 67 

 (b) the Company shall authorize the granting to all or substantially all of the holders of
its Common Stock of rights or warrants to subscribe for or purchase any share of any class or any other rights or warrants that would require an adjustment in the Conversion Rate pursuant to Section 10.04; or 

(c) of any reclassification of the Common Stock of the Company (other than a share split or share combination of its outstanding Common Stock,
or a change in par value), or of any share exchange, consolidation or merger to which the Company is a party and for which approval of any shareholders of the Company is required, or of the conveyance, transfer, sale, lease or other disposition of
all or substantially all of the consolidated assets of the Company; or 
 (d) of the voluntary or involuntary dissolution, liquidation or
winding up of the Company; 
 the Company shall cause to be filed with the Trustee and to be mailed (or otherwise transmitted in accordance with the
applicable procedures of the Depositary) to each Holder at his address appearing on the Register provided for in Section 2.05, as promptly as possible but in any event at least 10 calendar days prior to the applicable date hereinafter
specified, a notice stating: 
 (x) the declaration date of the dividend or other distribution; 

(y) the date on which a record is to be taken for the purpose of such dividend, distribution or rights or warrants, or, if
a record is not to be taken, the date as of which the holders of Common Stock of record to be entitled to such dividend, distribution or rights are to be determined; or 

(z) the date on which such reclassification, share exchange, consolidation, merger, conveyance, transfer, sale, lease or other
disposition, dissolution, liquidation or winding up is expected to become effective or occur, and the date as of which it is expected that holders of Common Stock of record shall be entitled to exchange their Common Stock for securities or other
property deliverable upon such reclassification, consolidation, merger, sale, transfer, dissolution, liquidation or winding up. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such dividend,
distribution, reclassification, consolidation, merger, sale, transfer, dissolution, liquidation or winding up. 
 SECTION 10.08.
Shareholder Rights Plans. To the extent that any shareholders’ rights plan adopted by the Company is in effect upon conversion of the Notes, the Holders shall receive, in addition to any Common Stock due upon conversion, the rights under
the applicable rights agreement unless the rights have separated from the Common Stock at the time of conversion of the Notes, in which case, the Conversion Rate shall be adjusted as if the Company distributed to all holders of the Common Stock
shares of the Capital Stock, evidences of indebtedness or assets as provided in Section 10.04(c), subject to readjustment in the event of the expiration, termination or redemption of such rights. 

  
 68 

 SECTION 10.09. 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 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 10. 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 10.05 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 10.05 or to any adjustment to be made with respect thereto, but,
subject to the provisions of Section 7.01, may accept as conclusive evidence of the correctness of any such provisions, and shall be protected in relying upon, the Officers’ 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 10.01 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 10.01 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 occurrence of any such event or at such
other times as shall be provided for in Section 10.01. 
 SECTION 10.10. Exchange-Related Limitations. Notwithstanding anything
to the contrary in the Notes or in this Indenture, in connection with limitations imposed by the continued listing standards of the NASDAQ Global Select Market, in the event of an increase in the Conversion Rate that would result in the Notes, in
the aggregate, becoming convertible into shares of Common Stock in excess of 20% of the Common Stock outstanding as of the issue date of the Notes, the Company, at its election, shall either (i) obtain shareholder approval of such issuances, in
accordance with the shareholder approval rules contained in such listing standards, or (ii) pay cash in lieu of delivering any shares of Common Stock otherwise deliverable upon conversion in excess of such limitations based on the average Daily
VWAP of the applicable Observation Period. If the Company pays cash in lieu of delivering shares of Common Stock pursuant to this Section 10.10, it will notify the Trustee, the Conversion Agent and the Holders of the maximum number of shares it
will deliver per $1,000 principal amount of converted Notes in respect of the relevant conversion. 

  
 69 

 SECTION 10.11. Exchange in Lieu of Conversion 

(a) When a Holder surrenders its Notes for conversion, the Company may, at its election, surrender, on or prior to the close of business on the
Business Day following the relevant Conversion Date, such Notes to a financial institution designated by the Company (the “Designated Institution”) for exchange in lieu of conversion. In order to accept any Notes surrendered for
conversion for exchange in lieu of conversion, the Designated Institution must agree to timely deliver, in exchange for such Notes, the cash, shares of Common Stock or combination of cash and shares of Common Stock, at the Company’s election,
that would otherwise be due upon conversion as described in Section 10.02 above and in respect of which the Company has notified converting Holders. If the Company makes the election described above, the Company shall, by the close of business
the Business Day following the relevant Conversion Date, notify in writing the Holder surrendering Notes for conversion, the Trustee and the Conversion Agent (if other than the Trustee) that it has made such election. In addition, the Company shall
concurrently notify the Designated Institution of the settlement method elected with respect to such conversion and the relevant deadline for delivery of the consideration due upon conversion. Any Notes exchanged by the Designated Institution will
remain outstanding. 
 (b) If the Designated Institution agrees to accept any Notes for exchange but does not timely deliver the related
consideration due upon conversion to the Holder, or if the Designated Institution does not accept such Notes for exchange, the Company shall, within the time period specified in Section 10.02(b), convert such Notes into cash, shares of Common
Stock or combination of cash and shares of Common Stock, at the Company’s election, in accordance with the provisions of Section 10.02. 

(c) For the avoidance of doubt, in no event will the Company’s designation of a Designated Institution pursuant to this Section 10.11
require the Designated Institution to accept any Notes for exchange. 
 ARTICLE 11 

Miscellaneous 
 SECTION
11.01. Trust Indenture Act Controls. If any provision of this Indenture limits, qualifies or conflicts with another provision which, if applicable, is required to be included in this Indenture by the Trust Indenture Act, the required
provision shall control. 
 SECTION 11.02. Notices. Any notice or communication shall be in writing and delivered in person or mailed
by first-class mail addressed as follows: 
 if to the Company: 

InterDigital, Inc. 
 200 Bellevue
Parkway 
 Suite 300 

Wilmington, Delaware 19809 

Attention: Richard J. Brezski, with a copy to Jannie K. Lau 

  
 70 

 if to the Trustee: 

The Bank of New York Mellon Trust Company, N.A. 

500 Ross Street, 12th Floor 

Pittsburgh, Pennsylvania 15262 

Attention: Corporate Trust Administration 

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

 Any notice or communication mailed to a Holder (or otherwise transmitted in accordance with the applicable procedures of the Depositary)
shall be mailed or transmitted to the Holder at the Holder’s address as it appears on the Register of the Registrar and shall be sufficiently given if so mailed or transmitted within the time prescribed. 

Failure to send 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 sent in the manner provided above, it is duly given, whether or not the addressee receives it. 
 In addition to
the foregoing, the Trustee agrees to accept and act upon notice, instructions or directions pursuant to this Indenture sent by unsecured e-mail, facsimile transmission or other similar unsecured electronic
methods. If the party elects to give the Trustee e-mail or facsimile instructions (or instructions by a similar electronic method) and the Trustee in its discretion elects to act upon such instructions, the
Trustee’s understanding of such instructions shall be deemed controlling. The Trustee shall not be liable for any losses, costs or expenses arising directly or indirectly from the Trustee’s reliance upon and compliance with such
instructions notwithstanding such instructions conflict or are inconsistent with a subsequent written instruction. The party providing electronic instructions agrees to assume all risks arising out of the use of such electronic methods to submit
instructions and directions to the Trustee, including without limitation the risk of the Trustee acting on unauthorized instructions, and the risk or interception and misuse by third parties. 

SECTION 11.03. Communication by Holders with Other Holders. Holders may communicate pursuant to Trust Indenture Act Section 312(b)
with other Holders with respect to their rights under this Indenture or the Notes. The Company, the Trustee, the Registrar and anyone else shall have the protection of Trust Indenture Act Section 312(c). 

SECTION 11.04. Certificate and Opinion as to Conditions Precedent. Upon any request or application by the Company to the Trustee to
take or refrain from taking any action under this Indenture, the Company shall furnish to the Trustee: 
 (a) an Officers’ Certificate
in form and substance reasonably satisfactory to the Trustee stating that, in the opinion of the signers, all conditions precedent, if any, provided for in this Indenture relating to the proposed action have been complied with; and 

(b) an Opinion of Counsel in form and substance reasonably satisfactory to the Trustee stating that, in the opinion of such counsel, all such
conditions precedent have been complied with. 

  
 71 

 SECTION 11.05. Statements Required in Certificate or Opinion. Each certificate or
opinion with respect to compliance with a covenant or condition provided for in this Indenture shall include: 
 (a) a statement that the
individual making such certificate or opinion has read such covenant or condition; 
 (b) a brief statement as to the nature and scope of the
examination or investigation upon which the statements or opinions contained in such certificate or opinion are based; 
 (c) a statement
that, in the opinion of such individual, he has made such examination or investigation as is necessary to enable him to express an informed opinion as to whether or not such covenant or condition has been complied with; and 

(d) a statement as to whether or not, in the opinion of such individual, such covenant or condition has been complied with. 

SECTION 11.06. When Notes Disregarded. In determining whether the Holders of the required principal amount of Notes have concurred in
any direction, waiver or consent, Notes owned by the Company or by any Person directly or indirectly controlling or controlled by or under direct or indirect common control with the Company shall be disregarded (from both the numerator and
denominator) and deemed not to be outstanding, except that, for the purpose of determining whether the Trustee shall be protected in relying on any such direction, waiver or consent, only Notes which a Responsible Officer of the Trustee knows are so
owned shall be so disregarded. Subject to the foregoing, only Notes outstanding at the time shall be considered in any such determination. 

SECTION 11.07. Rules by Trustee, Paying Agent and Registrar. The Trustee may make reasonable rules for action by or a meeting of
Holders. The Registrar and the Paying Agent may make reasonable rules for their functions. 
 SECTION 11.08. Set-Off of Withholding Taxes. If the Company is required by applicable law to pay, and pays, withholding tax on behalf of a Non-U.S. Holder as a result of an adjustment to
the Conversion Rate, the Company may, at its option, set off or cause to be set off such withholding tax against any payments of cash or shares of Common Stock on the Notes (or, if such withholding tax has not previously been fully set off against
such cash or shares, against any payments on the shares of Common Stock). 
 SECTION 11.09. Governing Law; Venue. THIS INDENTURE AND
THE NOTES SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. Each of the parties hereto irrevocably agrees that all claims in respect of any suit, action or proceeding arising out of or based upon this
Indenture, the Notes or the transactions contemplated hereby shall be instituted in any federal or state court in 

  
 72 

 
the Borough of Manhattan in The City of New York, County and State of New York, United States of America; and irrevocably and fully waives, to the fullest extent permitted by applicable law, the
defense of an inconvenient forum to the maintenance of such suit, action or proceeding and any immunity to jurisdiction to which it may otherwise be entitled in any legal suit, action or proceeding against it arising out of or in connection with
this Indenture or any of the transactions contemplated hereby, and irrevocably waives to the fullest extent it may effectively do so, any objection which it may now or hereafter have to the laying of venue of any such suit, action or proceeding; and
irrevocably consents and submits to the non-exclusive jurisdiction of any federal or state court in the Borough of Manhattan in the City of New York, County and State of New York, United States of America, in
personam, generally and unconditionally with respect to any such suit, action or proceeding for itself and in respect of its properties, assets and revenues. 

SECTION 11.10. No Recourse Against Others. No past, present or future director, officer, employee, incorporator, shareholder or
partner, as such, of the Company shall have any liability for any obligations of the Company under the Notes or this Indenture or for any claim based on, in respect of or by reason of, such obligations or their creation. By accepting a Note, each
Holder shall waive and release all such liability. The waiver and release shall be part of the consideration for the issue of the Notes. 

SECTION 11.11. Successors. All agreements of the Company in this Indenture and the Notes shall bind its successors. All agreements of
the Trustee in this Indenture shall bind its successors. 
 SECTION 11.12. Multiple Originals. The parties may sign any number of
copies of this Indenture. Each signed copy shall be an original, but all of them together represent the same agreement. One signed copy is enough to prove this Indenture. 

SECTION 11.13. Table of Contents; Headings. The table of contents, cross-reference sheet and headings of the Articles and Sections of
this Indenture have been inserted for convenience of reference only, are not intended to be considered a part hereof and shall not modify or restrict any of the terms or provisions hereof. 

SECTION 11.14. Severability Clause. In case any provision in this Indenture shall be invalid, illegal or unenforceable, the validity,
legality and enforceability of the remaining provisions shall not in any way be affected or impaired thereby and such provision shall be ineffective only to the extent of such invalidity, illegality or unenforceability. 

SECTION 11.15. Calculations. The Company shall be responsible for making all calculations called for under the Notes and for monitoring
any Stock Price, measurement or Observation Period. The calculations include, but are not limited to, determinations of the Closing Sale Price of the Common Stock, the VWAP of the Common Stock, accrued interest payable on the Notes, the Conversion
Rate, the Conversion Price, the Daily Conversion Values and the Additional Shares. The Company or its agents shall make all these calculations in good faith and, absent manifest error, such calculations shall be final and binding on Holders. The
Company shall provide a schedule of these calculations to each of the Trustee and the Conversion Agent, and each of the Trustee and Conversion Agent is entitled to rely upon the accuracy of the Company’s calculations without independent
verification. The Trustee shall 

  
 73 

 
forward these calculations to any Holder upon the request of such Holder. Neither the Trustee nor the Conversion Agent shall have any responsibility to perform calculations hereunder or to
monitor the Company’s stock price; nor shall either of them be charged with knowledge of when a Note is convertible. 
 SECTION 11.16.
Waiver of Jury Trial. EACH OF THE COMPANY, THE TRUSTEE AND THE HOLDERS (BY THEIR ACCEPTANCE OF THE NOTE) 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. 
 SECTION 11.17. FATCA. In order to
comply with Sections 1471 through 1474 of the Internal Revenue Code of 1986, as amended from time to time, and the regulations promulgated thereunder (inclusive of directives, guidelines and interpretations promulgated by competent authorities) in
effect from time to time (“Applicable Law”) that a foreign financial institution, or issuer, trustee, paying agent, holder or other institution is or has agreed to be subject to related to the Indenture, the Company agrees
(i) to provide to the Trustee sufficient information about Holders or other applicable parties and/or transactions (including any modification to the terms of such transactions) that is reasonably requested by the Trustee so the Trustee can
determine whether it has tax related obligations under Applicable Law, (ii) that the Trustee shall be entitled to make any withholding or deduction from payments under this Indenture to the extent necessary to comply with Applicable Law, and
(iii) to hold harmless the Trustee for any losses it may suffer due to the actions it takes to comply with such Applicable Law, in case of each of clauses (ii) and (iii), other than any liability or losses as may be attributable to the
Trustee’s willful misconduct or negligence. The terms of this paragraph shall survive the termination of this Indenture. 

  
 74 

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

			
	 INTERDIGITAL, INC.
 as
Issuer

		
	By:	 	 /s/ Richard J. Brezski

		 	Name: Richard J. Brezski
		 	Title: Chief Financial Officer
	
	THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee
		
	By:	 	 /s/ Lawrence M. Kusch

		 	Name: Lawrence M. Kusch
		 	Title: Vice President

 EXHIBIT A 

[FORM OF FACE OF NOTE] 
 [Global
Note Legend] 
 UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY, A NEW YORK CORPORATION
(“DTC”), TO INTERDIGITAL, INC. OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR 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. 
 TRANSFERS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS IN
WHOLE, BUT NOT IN PART, TO NOMINEES OF DTC OR TO A SUCCESSOR THEREOF OR SUCH SUCCESSOR’S NOMINEE AND TRANSFERS OF PORTIONS OF THIS GLOBAL SECURITY SHALL BE LIMITED TO TRANSFERS MADE IN ACCORDANCE WITH THE RESTRICTIONS SET FORTH IN THE INDENTURE
REFERRED TO ON THE REVERSE HEREOF. 
 [Restricted Note Legend] 

THE SECURITY EVIDENCED BY THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT OF
1933”), OR ANY STATE SECURITIES LAWS, AND MAY NOT BE OFFERED OR SOLD EXCEPT AS SET FORTH IN THE FOLLOWING SENTENCE. BY ACQUISITION HEREOF OR A BENEFICIAL INTEREST HEREIN, THE HOLDER: 

(1) REPRESENTS THAT IT IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT OF 1933;

 (2) AGREES THAT IT WILL NOT PRIOR TO THE DATE ONE YEAR, OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE
SECURITIES ACT OR ANY SUCCESSOR PROVISION THEREUNDER, AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE 2.00% SENIOR CONVERTIBLE NOTES DUE 2024 OF INTERDIGITAL, INC. (THE “COMPANY”) RESELL OR OTHERWISE TRANSFER THE SECURITY EVIDENCED HEREBY
OR ANY COMMON STOCK THAT MAY BE ISSUABLE UPON CONVERSION OF SUCH SECURITY EXCEPT (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A PERSON IT REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE
SECURITIES ACT OF 1933, (C) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT OF 

  
 A-1 

 
1933 AND WHICH CONTINUES TO BE EFFECTIVE AT THE TIME OF SUCH TRANSFER, OR (D) PURSUANT TO ANY OTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE SECURITIES ACT, INCLUDING UNDER
RULE 144, IF AVAILABLE, SUBJECT (IN THE CASE OF CLAUSE (D)) TO THE COMPANY’S AND THE TRUSTEE’S RIGHT PRIOR TO ANY SUCH TRANSFER, TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER INFORMATION SATISFACTORY TO THE
COMPANY AND THE TRUSTEE; 
 (3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THE SECURITY EVIDENCED HEREBY IS
TRANSFERRED (OTHER THAN A TRANSFER PURSUANT TO CLAUSES 2(C) ABOVE) A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND; AND 

(4) AGREES THAT ANY SECURITY THAT IS OWNED BY AN AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT OF 1933) OF THE
COMPANY MAY NOT BE RESOLD OR TRANSFERRED BY SUCH AFFILIATE OTHER THAN TO THE COMPANY OR A SUBSIDIARY THEREOF OR (A) PURSUANT TO A REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933, (B) RULE 144 UNDER THE SECURITIES ACT OF 1933 OR
(C) ANOTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OF 1933 IN A TRANSACTION THAT RESULTS IN SUCH SECURITY NO LONGER BEING A RESTRICTED SECURITY (AS DEFINED UNDER RULE 144). IN THE EVENT ANY SUCH PERSONS BENEFICIALLY
OWNS AN INTEREST IN THE SECURITY PRIOR TO THE TIME THE COMPANY REMOVES THE RESTRICTIVE LEGEND ON THE SECURITY, THE COMPANY MAY REQUIRE THAT SUCH PERSONS HOLD THEIR INTERESTS IN THE SECURITIES IN CERTIFICATED FORM BEARING AN APPROPRIATE RESTRICTIVE
LEGEND AND A RESTRICTED CUSIP NUMBER. 

  
 A-2 

 No.______ 

2.00% Senior Convertible Note due 2024 

CUSIP No.: [                     ]1 
 ISIN No.:
[                     ]2 

INTERDIGITAL, INC., a Pennsylvania corporation, promises to pay to [Cede &
Co.]3, or registered assigns, the principal sum of [            ] million dollars
($            ) [or such lesser amount as is indicated in the books and records of the Trustee and DTC]4, on June 1, 2024, and to
pay interest thereon from June 3, 2019, or from the most recent Interest Payment Date to which interest has been paid or duly provided for, semi-annually on June 1 and December 1 of each year, commencing December 1, 2019, at the
rate of 2.00% per annum, until the principal hereof is paid or made available for payment or converted. The interest so payable, and punctually paid or duly provided for, on any Interest Payment Date shall, as provided in the Indenture, be paid to
the Person in whose name this Note (or one or more predecessor Notes) is registered at 5:00 p.m., New York City time, on the Regular Record Date for such interest, which shall be May 15 or November 15 (whether or not a Business Day), as
the case may be, next preceding such Interest Payment Date. Any such interest not so punctually paid or duly provided for shall forthwith cease to be payable to the Holder on such Regular Record Date and may either be paid to the Person in whose
name this Note (or one or more predecessor Notes) is registered at 5:00 p.m., New York City time, on a Special Record Date for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders not more than
fifteen calendar days and not less than ten calendar days prior to such Special Record Date, or be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and
upon such notice as may be required by such exchange, all as more fully provided in the Indenture (as defined on the reverse hereof). 

Interest on the Notes shall be calculated on the basis of a 360-day year consisting of twelve 30-day months. 
 Reference is hereby made to the further provisions of this Note set forth on the reverse
hereof, which further provisions shall for all purposes have the same effect as if set forth at this place. 
 This Note shall be deemed to
be a contract made under the laws of the State of New York, and for all purposes shall be governed by, and construed in accordance with, the laws of said State. 

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

 

	1 	 45867G AA9 (Restricted); 45867G AB7 (Unrestricted) 

	2 	 US45867GAA94 (Restricted); US45867GAB77 (Unrestricted) 

	3 	 Use bracketed language only if Global Note. 

	4 	 Use bracketed language only if Global Note. 

  
 A-3 

							
	Dated:	 		 		 	
			
		 		 	INTERDIGITAL, INC.
				
		 		 	By:	 	  

		 		 		 	Name:
		 		 		 	Title:

  

			
	TRUSTEE’S CERTIFICATE OF
	 AUTHENTICATION

	
	THE BANK OF NEW YORK MELLON TRUST 
	COMPANY, N.A., 
	 as Trustee, certifies that this is one of the

Notes referred to in the Indenture

		
	By:	 	  

		 	Authorized Signatory

  
 A-4 

 [FORM OF REVERSE SIDE OF NOTE] 

2.00% Senior Convertible Note due 2024 

INTERDIGITAL, INC., a Pennsylvania corporation (such corporation, and its successors and assigns under the Indenture hereinafter referred to,
being herein called the “Company”), issued this Note under an Indenture, dated as of June 3, 2019 (as it may be amended or supplemented from time to time in accordance with the terms thereof, the “Indenture”),
between the Company and The Bank of New York Mellon Trust Company, N.A., as Trustee, to which reference is hereby made for a statement of the respective rights, obligations, duties and immunities thereunder of the Trustee, the Company and the
Holders and of the terms upon which the Notes are, and are to be, authorized and delivered. All terms used in this Note which are defined in the Indenture shall have the meaning assigned to them in the Indenture. 

 

	1.	 Further Provisions Relating to Interest 

(a) Additional Interest. If, at any time during the six-month period beginning on, and
including, the date which is six months after the last original issuance date of the Notes, the Company fails to timely file any document or report that the Company is required to file with the SEC 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 current reports on Form 8-K), the Company shall pay additional interest (the “Rule 144
Additional Interest”) on the Notes which shall accrue on all transfer restricted Notes at an annual 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 continues. 
 (b) In the event of the Company’s failure to comply with the covenant in Section 4.03(a) of the
Indenture and the Company’s failure to comply with the requirements of Section 314(a)(1) of the Trust Indenture Act (which also relate to the provision of reports), the Company may elect that the sole remedy for the resulting Event of
Default for the 360 days after the occurrence of such Event of Default shall consist exclusively of the right to receive additional interest (the “Reporting Additional Interest”) on the Notes at an annual rate equal to (i) 0.25% of
the outstanding principal amount of the Notes from the first date of the occurrence of such Event of Default to, but not including, the 180th day thereafter (or such earlier date on which the
Event of Default relating to the Company’s reporting obligations pursuant to Section 4.03(a) of the Indenture and Section 314(a)(1) of the Trust Indenture Act shall have been cured or waived) and (ii) 0.50% of the outstanding
principal amount of the Notes from the 181st date following the occurrence to the 360th day after the first date of the occurrence of such
Event of Default (or such earlier date on which the Event of Default relating to the Company’s reporting obligations pursuant to Section 4.03(a) of the Indenture and Section 314(a)(1) of the Trust Indenture Act shall have been cured
or waived). In the event the Company does not elect to pay the Reporting Additional Interest upon an Event of Default in accordance with Section 6.13 of the Indenture, the Notes shall be subject to acceleration pursuant to Section 6.02 of
the Indenture. This Reporting Additional Interest shall be payable in arrears on the same dates and in the same manner as regular interest on the Notes. On such 360th day, if such Event of Default
is continuing, such Reporting Additional Interest shall cease to accrue and the Notes shall be 

  
 A-5 

 
subject to acceleration as provided in Section 6.02 of the Indenture. For the avoidance of doubt, in the event Rule 144 Additional Interest is triggered under Section 4.12 of the
Indenture or Free Transferability Additional Interest is triggered under Section 4.13 of the Indenture during any period in which the Company has elected that the accrual of Reporting Additional Interest be the sole remedy for any such Event of
Default, no Reporting Additional Interest shall be payable pursuant to Section 6.13 of the Indenture for so long as Rule 144 Additional Interest is accruing and payable pursuant to Section 4.12 of the Indenture or Free Transferability
Additional Interest is accruing under Section 4.13 of the Indenture. 
 (c) Further, if, and for so long as, the Restricted Note Legend
on the Notes has not been removed, the Notes are assigned a restricted CUSIP or the Notes are not otherwise Freely Transferable by holders other than Affiliates of the Company or Persons that were Affiliates of the Company during the immediately
preceding three months (without restrictions pursuant to U.S. securities law or the terms of the Indenture or the Notes) as of the 380th day after the last date of original issuance of the Notes, the Company shall pay additional interest
(“Free Transferability Additional Interest”) on the Notes at a rate equal to 0.50% per annum of the principal amount of Notes outstanding until the Notes are Freely Transferable as described above by holders other than Affiliates of
the Company or Persons that were Affiliates of the Company during the immediately preceding three months. No Free Transferability Additional Interest shall be payable pursuant to Section 4.13 of the Indenture for so long as Rule 144 Additional
Interest is accruing and payable pursuant to Section 4.12 of the Indenture; provided, however, that, for the avoidance of any doubt, Free Transferability Additional Interest shall accrue and be payable pursuant to
Section 4.13 of the Indenture once such Rule 144 Additional Interest ceases to accrue and be payable pursuant to Section 4.12 of the Indenture. 

(d) Except as otherwise specifically set forth, all references herein to “interest” include Defaulted Interest, if any, Rule 144
Additional Interest, if any, Reporting Additional Interest, if any, and Free Transferability Additional Interest, if any. 
  

	2.	 Method of Payment 

The Company shall pay interest on the Notes (except Defaulted Interest) to the Persons who are registered holders of Notes at 5:00 p.m., New
York City time, on the May 15 and November 15 next preceding the Interest Payment Date. Holders must surrender Notes to a Paying Agent to collect principal payments. The Company shall pay principal and interest in money of the United
States of America that at the time of payment is legal tender for payment of public and private debts. 
 The Company shall pay interest on:

 (i) any Global Notes to the Depositary in immediately available funds; 

(ii) any Notes in certificated form by wire transfer in immediately available funds to the Holder of such Notes duly delivered to the Trustee
at least five Business Days prior to the relevant Interest Payment Date. 

  
 A-6 

	3.	 Paying Agent, Registrar and Conversion Agent 

Initially, The Bank of New York Mellon Trust Company, N.A., a national banking association organized under the laws of the United States (the
“Trustee”), shall act as Paying Agent, Registrar and Conversion Agent. The Company may appoint and change any Paying Agent, Registrar or co-registrar or Conversion Agent without notice. The
Company or any of its Wholly Owned Subsidiaries that is not a Foreign Subsidiary may act as Paying Agent, Registrar or co-registrar. 

4. Sinking Fund 
 The Notes are not subject
to any sinking fund. 
  

	5.	 Repurchase of Notes at the Option of Holders 

Upon the occurrence of a Fundamental Change, the Holder has the right to require the Company to repurchase all or part of such Holder’s
Notes in a principal amount thereof that is equal to $1,000 in principal amount or whole multiples thereof on the Fundamental Change Repurchase Date at a price, payable in cash, equal to 100% of the principal amount of the Notes such Holder elects
to require the Company to repurchase, plus accrued and unpaid interest to, but excluding, the Fundamental Change Repurchase Date. The Company or, at the written request of the Company, the Trustee shall provide to all record Holders a notice of the
occurrence of a Fundamental Change and of the repurchase right arising as a result thereof on or before the tenth Business Day after the occurrence of such Fundamental Change. 
  

	6.	 Conversion 

Subject to the provisions of the Indenture, the Holder hereof may convert, during certain periods and upon the occurrence of certain conditions
specified in the Indenture and prior to 5:00 p.m., New York City time, on the second Scheduled Trading Day immediately preceding the Maturity Date, any Notes or portion thereof that is $1,000 or multiples thereof at a Conversion Rate specified in
the Indenture, as adjusted from time to time as provided in the Indenture, upon surrender of this Note, together with a conversion notice as provided in the Indenture and this Note, to the Company at the office or agency of the Company maintained
for that purpose and, unless the shares issuable on conversion are to be issued in the same name as this Note, duly endorsed by, or accompanied by instruments of transfer in form satisfactory to the Company duly executed by, the Holder or by its
duly authorized attorney. Upon conversion, the Company shall satisfy its Conversion Obligation in cash, shares of Common Stock or a combination of cash and Shares of Common Stock, if applicable. The initial Conversion Rate shall be 12.3018 shares of
Common Stock per $1,000 principal amount of Notes (equivalent to an initial conversion price of approximately $81.29 per share of Common Stock). No fractional shares of Common Stock shall be issued upon any conversion, but an adjustment in cash
shall be paid to the Holder, as provided in the Indenture, in respect of any fraction of a share that would otherwise be issuable upon the surrender of any Note or Notes for conversion. No adjustment shall be made for dividends or any shares issued
upon conversion of such Note except as provided in the Indenture. 

  
 A-7 

	7.	 Denominations, Transfer, Exchange 

The Notes are in registered form without coupons in denominations of $1,000 and whole multiples of $1,000. A Holder may transfer or exchange
Notes in accordance with the Indenture. Upon any transfer or exchange, the Registrar and the Trustee may require a Holder, among other things, to furnish appropriate endorsements or transfer documents and to pay any taxes required by law or
permitted by the Indenture. 
  

	8.	 Persons Deemed Owners 

The registered Holder of this Note may be treated as the owner of it for all purposes. 

 

	9.	 Unclaimed Money 

Subject to any applicable abandoned property law, the Trustee and the Paying Agent shall pay to the Company upon written request any money held
by them for the payment of principal or interest and any shares of Common Stock or other property due in respect of converted Notes that remains unclaimed for two years, and, thereafter, Holders entitled to the money and/or securities must look to
the Company for payment as general creditors. 
  

	10.	 Amendment, Waiver 

Subject to certain exceptions, the Indenture contains provisions permitting a modification or amendment of the Indenture or the Notes with the
written consent or affirmative vote of the Holders of a majority in aggregate principal amount of the then outstanding Notes and the waiver of any Event of Default (other than with respect to nonpayment, a failure to satisfy the Conversion
Obligation or a provision that cannot be amended without the written consent of each Holder affected) or noncompliance with any provision with the written consent of the Holders of a majority in aggregate principal amount of the then outstanding
Notes. 
 In addition, the Indenture permits an amendment of the Indenture or the Notes without the consent of any Holder under circumstances
specified in the Indenture. The Indenture also permits an amendment of the Indenture or the Notes only with the consent of any Holder affected thereby under circumstances specified in the Indenture. 

 

	11.	 Defaults and Remedies 

Except as specified in the Indenture, if an Event of Default occurs (other than an Event of Default relating to certain events of bankruptcy,
insolvency or reorganization of the Company) and is continuing, the Trustee or the Holders of at least 25% in aggregate principal amount of the outstanding Notes may declare the principal amount of the Notes and accrued and unpaid interest on the
outstanding Notes to be due and payable. If an Event of Default relating to certain events of bankruptcy, insolvency or reorganization of the Company occurs, the principal amount of the Notes and accrued and unpaid interest on the outstanding Notes
shall become immediately due and payable without any declaration or other act on the part of the Trustee or any Holders. Under certain circumstances, the holders of a majority in aggregate principal amount of the outstanding Notes may rescind any
such acceleration with respect to the Notes and its consequences. 

  
 A-8 

 If an Event of Default occurs and is continuing, the Trustee shall be under no obligation to
exercise any of the rights or powers under the Indenture at the request or direction of any of the Holders unless such Holders have offered to the Trustee indemnity or security reasonably satisfactory to the Trustee against any loss, liability or
expense. Subject to certain exceptions, no Holder may pursue any remedy with respect to the Indenture or the Notes unless (i) such Holder has given the Trustee written notice of an Event of Default, (ii) holders of at least 25% in
aggregate principal amount of the outstanding Notes have made a written request to the Trustee to pursue the remedy and offered reasonable security or indemnity against any costs, liability or expense of the Trustee, (iii) the Trustee fails to
comply with such request within 60 calendar days after receipt of such request and the offer of indemnity and (iv) the Trustee has not received an inconsistent direction from the holders of a majority in aggregate principal amount of the
outstanding Notes. Subject to certain restrictions, the Holders of a majority in aggregate principal amount of the outstanding Notes are given the right to direct the time, method and place of any proceedings for any remedy available to the Trustee.
The Trustee, however, may refuse to follow any direction that conflicts with law or the Indenture or that the Trustee determines is unduly prejudicial to the rights of any other Holder or that would involve the Trustee in personal liability or
expense for which the Trustee has not received adequate indemnity as determined by it in good faith. Prior to taking any action under the Indenture, the Trustee shall be entitled to indemnification or security reasonably satisfactory to it in its
sole discretion against all losses, liabilities and expenses caused by taking or not taking such action. 
 No reference herein to the
Indenture and no provision of this Note or of the Indenture shall impair, as among the Company and the holder of the Notes, the obligation of the Company, which is absolute and unconditional, to pay the principal of and interest on this Note at the
place, at the respective times, at the rate and in the coin or currency herein and in the Indenture prescribed. 
  

	12.	 Trustee Dealings with the Company 

Subject to certain limitations imposed by the Trust Indenture Act, the Trustee under the Indenture, in its individual or any other capacity,
may become the owner or pledgee of Notes and may otherwise deal with the Company or its Affiliates with the same rights it would have if it were not Trustee. 
  

	13.	 No Recourse Against Others 

No past, present or future director, officer, employee, incorporator, shareholder or partner, as such, of the Company shall have any liability
for any obligations of the Company under the Notes or the Indenture or for any claim based on, in respect of or by reason of, such obligations or their creation. By accepting a Note, each Holder shall waive and release all such liability. The waiver
and release shall be part of the consideration for the issue of the Notes. 

  
 A-9 

	14.	 Authentication 

This Note shall not be valid until an authorized signatory of the Trustee (or an authenticating agent) manually signs the certificate of
authentication on the other side of this Note. 
  

	15.	 Abbreviations 

Customary abbreviations may be used in the name of a Holder or an assignee, such as TEN COM (=tenants in common), TEN ENT (=tenants by the
entireties), JT TEN (=joint tenants with rights of survivorship and not as tenants in common), CUST (=custodian), and U/G/M/A (=Uniform Gift to Minors Act). 
  

	16.	 Governing Law 

THIS NOTE SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK. 

 

	17.	 CUSIP Numbers and ISINs 

Pursuant to a recommendation promulgated by the Committee on Uniform Security Identification Procedures, the Company has caused CUSIP numbers
and ISINs to be printed on the Notes and has directed the Trustee to use CUSIP numbers and ISINs in notices of repurchase as a convenience to Holders. No representation is made as to the accuracy of such numbers either as printed on the Notes or as
contained in any notice of repurchase and reliance may be placed only on the other identification numbers placed thereon. 
 The Company
shall furnish to any holder of Notes upon written request and without charge to the holder a copy of the Indenture which has in it the text of this Note. 

  
 A-10 

 CONVERSION NOTICE 
  

	TO:	 INTERDIGITAL, INC. 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee 

The undersigned registered owner of this Note hereby irrevocably exercises the option to convert this Note, or the portion thereof (which is
$1,000 or a multiple thereof) below designated in accordance with the terms of the Indenture referred to in this Note, and directs that the cash and shares of Common Stock, if any, deliverable upon such conversion 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. Capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the
Indenture. If shares or any portion of this Note not converted are to be issued in the name of a person other than the undersigned, the undersigned shall provide the appropriate information below and pay all transfer taxes payable with respect
thereto. Any amount required to be paid by the undersigned on account of interest accompanies this Note. 
  

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

  
 A-11 

 Fill in the registration of shares of Common Stock, if any, if to be issued, and Notes if to
be delivered, and the person to whom cash and payment for fractional shares is to be made, if to be made, other than to and in the name of the registered holder: 
  

	
	Please print name and address
	
	                                      
                                         
   
	(Name)
	
	                                      
                                         
   
	(Street Address)
	
	                                      
                                         
   
	(City, State and Zip Code)
	
	Principal amount to be converted
	(if less than all):
	
	$                                      
                                         
 
	
	Social Security or Other Taxpayer
	Identification Number:
	
	                                      
                                         
   

 NOTICE: The signature on this Conversion Notice must correspond with the name as written upon the face of the Notes in every
particular without alteration or enlargement or any change whatever. 

  
 A-12 

 FUNDAMENTAL CHANGE REPURCHASE NOTICE 

 

	TO:	 INTERDIGITAL, INC. 

THE BANK OF NEW YORK MELLON TRUST COMPANY, N.A., as Trustee 

The undersigned registered owner of this Note hereby irrevocably acknowledges receipt of a notice from InterDigital, Inc. (the
“Company”) regarding the right of holders to elect to require the Company to repurchase the Notes and requests and instructs the Company to repay the entire principal amount of this Note, or the portion thereof (which is $1,000 or an
integral multiple thereof) below designated, in accordance with the terms of the Indenture at the price of 100% of such entire principal amount or portion thereof, together with accrued and unpaid interest to, but excluding, the Fundamental Change
Repurchase Date to the registered holder hereof. Capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the Indenture. The Notes shall be repurchased by the Company as of the Fundamental Change Repurchase
Date pursuant to the terms and conditions specified in the Indenture. 
  

							
	Dated:	 	 	  		  	                                      
  
				
		 	 Signature(s):
	  	 	  	
				
		 		  	 	  	

 NOTICE: The above signatures of the holder(s) hereof must correspond with the name as written upon the face of the Notes in
every particular without alteration or enlargement or any change whatever. 
 Notes Certificate Number (if applicable):
____________________________ 
 Principal amount to be repurchased (if less than all, must be $1,000 or whole multiples thereof):
______________________ 
 Social Security or Other Taxpayer Identification Number: ________________ 

  
 A-13 

 ASSIGNMENT 

For value received                     
hereby sell(s) assign(s) and transfer(s) unto                      (Please insert social security or other Taxpayer Identification Number of
assignee) the within Notes, and hereby irrevocably constitutes and appoints                      attorney to transfer said Notes on the books of the
Company, with full power of substitution in the premises. 
 In connection with any transfer of the Notes prior to the first anniversary of
the last date of the original issuance of the Notes, the undersigned confirms that such Notes are being transferred: 
  

	 	☐	 To InterDigital, Inc. or a subsidiary thereof; or 

 

	 	☐	 To a “qualified institutional buyer” in compliance with Rule 144A under the Securities Act of 1933,
as amended; or 

  

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

  

	 	☐	 Pursuant to a Registration Statement which has been declared effective under the Securities Act of 1933, as
amended, and which continues to be effective at the time of transfer; 

 and unless the Notes are being transferred to InterDigital, Inc.
or a subsidiary thereof, the undersigned confirms that such Notes are not being transferred to an “affiliate” of the Company as defined in Rule 144 under the Securities Act of 1933, as amended. 

Unless one of the boxes is checked, the Trustee shall refuse to register any of the Notes evidenced by this certificate in the name of any person other
than the registered holder thereof. 

  
 A-14 

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

 NOTICE: The signature on this Assignment must correspond with the name as written upon the face of the Notes in every
particular without alteration or enlargement or any change whatever. 

  
 A-15 

 EXHIBIT B 

RESTRICTED COMMON STOCK LEGEND3 

THE SECURITY EVIDENCED BY THIS CERTIFICATE HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT OF
1933”), OR ANY STATE SECURITIES LAWS, AND MAY NOT BE OFFERED OR SOLD EXCEPT AS SET FORTH IN THE FOLLOWING SENTENCE. BY ACQUISITION HEREOF OR A BENEFICIAL INTEREST HEREIN, THE HOLDER: 

(1) REPRESENTS THAT IT IS A “QUALIFIED INSTITUTIONAL BUYER” AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT OF 1933; 

(2) AGREES THAT IT WILL NOT PRIOR TO THE DATE ONE YEAR, OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY
SUCCESSOR PROVISION THEREUNDER, AFTER THE LAST DATE OF ORIGINAL ISSUANCE OF THE 2.00% SENIOR CONVERTIBLE NOTES DUE 2024 OF INTERDIGITAL, INC. (THE “COMPANY”) RESELL OR OTHERWISE TRANSFER THE SECURITY EVIDENCED HEREBY EXCEPT (A) TO THE
COMPANY OR ANY SUBSIDIARY THEREOF, (B) TO A PERSON IT REASONABLY BELIEVES IS A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT OF 1933, (C) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED
EFFECTIVE UNDER THE SECURITIES ACT OF 1933 AND WHICH CONTINUES TO BE EFFECTIVE AT THE TIME OF SUCH TRANSFER, OR (D) PURSUANT TO ANY OTHER EXEMPTION FROM THE REGISTRATION REQUIREMENTS UNDER THE SECURITIES ACT, INCLUDING UNDER RULE 144, IF
AVAILABLE, SUBJECT (IN THE CASE OF CLAUSE (D)) TO THE COMPANY’S AND THE TRANSFER AGENT’S RIGHT PRIOR TO ANY SUCH TRANSFER, TO REQUIRE THE DELIVERY OF AN OPINION OF COUNSEL, CERTIFICATIONS AND/OR OTHER INFORMATION SATISFACTORY TO THE
COMPANY AND THE TRANSFER AGENT; 
 (3) AGREES THAT IT WILL DELIVER TO EACH PERSON TO WHOM THE SECURITY EVIDENCED HEREBY IS TRANSFERRED (OTHER
THAN A TRANSFER PURSUANT TO CLAUSES 2(C) ABOVE) A NOTICE SUBSTANTIALLY TO THE EFFECT OF THIS LEGEND; AND 
 (4) AGREES THAT ANY SECURITY THAT
IS OWNED BY AN AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT OF 1933) OF THE COMPANY MAY NOT BE RESOLD OR TRANSFERRED BY SUCH AFFILIATE OTHER THAN TO THE COMPANY OR A SUBSIDIARY THEREOF OR (A) PURSUANT TO A REGISTRATION STATEMENT
UNDER THE SECURITIES ACT OF 1933, (B) RULE 144 UNDER THE SECURITIES ACT OF 1933 OR (C) ANOTHER EXEMPTION FROM THE 
  

	3 	 This legend should be included on shares of Common Stock issued upon conversion of Notes only if such shares of
Common Stock are Restricted Securities. 

  
 B-1 

 
REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OF 1933 IN A TRANSACTION THAT RESULTS IN SUCH SECURITY NO LONGER BEING A RESTRICTED SECURITY (AS DEFINED UNDER RULE 144). IN THE EVENT ANY SUCH
PERSONS BENEFICIALLY OWNS AN INTEREST IN THE SECURITY PRIOR TO THE TIME THE COMPANY REMOVES THE RESTRICTIVE LEGEND ON THE SECURITY, THE COMPANY MAY REQUIRE THAT SUCH PERSONS HOLD THEIR INTERESTS IN THE SECURITIES IN CERTIFICATED FORM BEARING AN
APPROPRIATE RESTRICTIVE LEGEND AND A RESTRICTED CUSIP NUMBER. 

  
 B-2

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