EX-4.1




 Exhibit 4.1 
  

 
  

ALTAIR ENGINEERING INC. 
 AND 

U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, 

as Trustee 
 INDENTURE 

Dated as of June 14, 2022 

1.750% Convertible Senior Notes due 2027 
  

 
  











 TABLE OF CONTENTS 

 
  

							
	 	  	PAGE	 
	ARTICLE 1	  

	DEFINITIONS	  

			
	 Section 1.01.
	 	Definitions	  	 	1	 
	 Section 1.02.
	 	References to Interest	  	 	15	 
	
	ARTICLE 2	  

	ISSUE, DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES	
 


			
	 Section 2.01.
	 	Designation and Amount	  	 	15	 
	 Section 2.02.
	 	Form of Notes	  	 	15	 
	 Section 2.03.
	 	Date and Denomination of Notes; Payments of Interest and Defaulted Amounts	  	 	16	 
	 Section 2.04.
	 	Execution, Authentication and Delivery of Notes	  	 	18	 
	 Section 2.05.
	 	Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary	  	 	18	 
	 Section 2.06.
	 	Mutilated, Destroyed, Lost or Stolen Notes	  	 	25	 
	 Section 2.07.
	 	Temporary Notes	  	 	26	 
	 Section 2.08.
	 	Cancellation of Notes Paid, Converted, Etc	  	 	27	 
	 Section 2.09.
	 	CUSIP Numbers	  	 	27	 
	 Section 2.10.
	 	Additional Notes; Repurchases	  	 	27	 
	 Section 2.11.
	 	Trustee Not Responsible for Securities Laws	  	 	28	 
	
	ARTICLE 3	  

	SATISFACTION AND DISCHARGE	  

			
	 Section 3.01.
	 	Satisfaction and Discharge	  	 	28	 
	
	ARTICLE 4	  

	PARTICULAR COVENANTS OF THE COMPANY	  

			
	 Section 4.01.
	 	Payment of Principal and Interest	  	 	28	 
	 Section 4.02.
	 	Paying Agent and Conversion Agent	  	 	28	 
	 Section 4.03.
	 	Appointments to Fill Vacancies in Trustee’s Office	  	 	29	 
	 Section 4.04.
	 	Provisions as to Paying Agent	  	 	29	 
	 Section 4.05.
	 	Existence	  	 	31	 
	 Section 4.06.
	 	Rule 144A Information Requirement and Annual Reports	  	 	31	 
	 Section 4.07.
	 	Stay, Extension and Usury Laws	  	 	33	 
	 Section 4.08.
	 	Compliance Certificate; Statements as to Defaults	  	 	33	 
	 Section 4.09.
	 	Further Instruments and Acts	  	 	34	 


  
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	ARTICLE 5	  

	LISTS OF HOLDERS AND REPORTS BY THE COMPANY AND THE
TRUSTEE	

 

			
	 Section 5.01. 
	 	Lists of Holders	  	 	34	 
	 Section 5.02. 
	 	Preservation and Disclosure of Lists	  	 	34	 
	
	ARTICLE 6	  

	DEFAULTS AND REMEDIES	  

			
	 Section 6.01. 
	 	Events of Default	  	 	34	 
	 Section 6.02.
	 	Acceleration; Rescission and Annulment	  	 	36	 
	 Section 6.03.
	 	Additional Interest	  	 	37	 
	 Section 6.04. 
	 	Payments of Notes on Default; Suit Therefor	  	 	38	 
	 Section 6.05. 
	 	Application of Monies Collected by Trustee	  	 	39	 
	 Section 6.06. 
	 	Proceedings by Holders	  	 	40	 
	 Section 6.07. 
	 	Proceedings by Trustee	  	 	41	 
	 Section 6.08.
	 	Remedies Cumulative and Continuing	  	 	41	 
	 Section 6.09. 
	 	Direction of Proceedings and Waiver of Defaults by Majority of Holders	  	 	42	 
	 Section 6.10. 
	 	Notice of Defaults	  	 	42	 
	 Section 6.11. 
	 	Undertaking to Pay Costs	  	 	42	 
	
	ARTICLE 7	  

	CONCERNING THE TRUSTEE	  

			
	 Section 7.01. 
	 	Duties and Responsibilities of Trustee	  	 	43	 
	 Section 7.02.
	 	Reliance on Documents, Opinions, Etc	  	 	45	 
	 Section 7.03. 
	 	No Responsibility for Recitals, Etc	  	 	46	 
	 Section 7.04.
	 	Trustee, Paying Agents, Conversion Agents, Bid Solicitation Agent or Security Registrar May Own Notes	  	 	47	 
	 Section 7.05.
	 	Monies and Shares of Common Stock to Be Held in Trust	  	 	47	 
	 Section 7.06.
	 	Compensation and Expenses of Trustee	  	 	47	 
	 Section 7.07.
	 	Officer’s Certificate and Opinion of Counsel as Evidence	  	 	48	 
	 Section 7.08.
	 	Eligibility of Trustee	  	 	48	 
	 Section 7.09.
	 	Resignation or Removal of Trustee	  	 	48	 
	 Section 7.10.
	 	Acceptance by Successor Trustee	  	 	49	 
	 Section 7.11. 
	 	Succession by Merger, Etc	  	 	50	 
	 Section 7.12. 
	 	Trustee’s Application for Instructions from the Company	  	 	50	 
	
	ARTICLE 8	  

	CONCERNING THE HOLDERS	  

			
	 Section 8.01.
	 	Action by Holders	  	 	51	 
	 Section 8.02. 
	 	Proof of Execution by Holders	  	 	51	 
	 Section 8.03. 
	 	Who Are Deemed Absolute Owners	  	 	51	 
	 Section 8.04. 
	 	Company-Owned Notes Disregarded	  	 	52	 
	 Section 8.05. 
	 	Revocation of Consents; Future Holders Bound	  	 	52	 


  
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	ARTICLE 9	  

	HOLDERS’ MEETINGS	  

			
	 Section 9.01.
	 	Purpose of Meetings	  	 	52	 
	 Section 9.02.
	 	Call of Meetings by Trustee	  	 	53	 
	 Section 9.03.
	 	Call of Meetings by Company or Holders	  	 	53	 
	 Section 9.04.
	 	Qualifications for Voting	  	 	54	 
	 Section 9.05.
	 	Regulations	  	 	54	 
	 Section 9.06.
	 	Voting	  	 	54	 
	 Section 9.07. 
	 	No Delay of Rights by Meeting	  	 	55	 
	
	ARTICLE 10	  

	SUPPLEMENTAL INDENTURES	  

			
	 Section 10.01.
	 	Supplemental Indentures Without Consent of Holders	  	 	55	 
	 Section 10.02.
	 	Supplemental Indentures with Consent of Holders	  	 	56	 
	 Section 10.03.
	 	Effect of Supplemental Indentures	  	 	57	 
	 Section 10.04.
	 	Notation on Notes	  	 	58	 
	 Section 10.05. 
	 	Evidence of Compliance of Supplemental Indenture to Be Furnished to Trustee	  	 	58	 
	
	ARTICLE 11	  

	CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE	
 

			
	 Section 11.01.
	 	Company May Consolidate, Etc. on Certain Terms	  	 	58	 
	 Section 11.02. 
	 	Successor Corporation to Be Substituted	  	 	59	 
	 Section 11.03. 
	 	Opinion of Counsel to Be Given to Trustee	  	 	59	 
	
	ARTICLE 12	  

	IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND DIRECTORS	
 


			
	 Section 12.01. 
	 	Indenture and Notes Solely Corporate Obligations	  	 	59	 
	
	ARTICLE 13	  

	[INTENTIONALLY OMITTED]	  

	
	ARTICLE 14	  

	CONVERSION OF NOTES	  

			
	 Section 14.01.
	 	Conversion Privilege	  	 	60	 
	 Section 14.02. 
	 	Conversion Procedure; Settlement Upon Conversion	  	 	63	 
	 Section 14.03. 
	 	Increased Conversion Rate Applicable to Certain Notes Surrendered in Connection with Make-Whole Fundamental Changes or During a Redemption Period	  	 	69	 
	 Section 14.04. 
	 	Adjustment of Conversion Rate	  	 	71	 
	 Section 14.05.
	 	Adjustments of Prices	  	 	81	 
	 Section 14.06. 
	 	Shares to Be Fully Paid	  	 	81	 


  
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	 Section 14.07. 
	 	Effect of Recapitalizations, Reclassifications and Changes of the Common Stock	  	 	82	 
	 Section 14.08. 
	 	Certain Covenants	  	 	84	 
	 Section 14.09. 
	 	Responsibility of Trustee	  	 	84	 
	 Section 14.10. 
	 	Notice to Holders Prior to Certain Actions	  	 	85	 
	 Section 14.11. 
	 	Stockholder Rights Plans	  	 	85	 
	 Section 14.12. 
	 	Exchange in Lieu of Conversion	  	 	85	 
	
	ARTICLE 15	  

	REPURCHASE OF NOTES AT OPTION OF HOLDERS	
 


			
	 Section 15.01. 
	 	[Intentionally Omitted]	  	 	86	 
	 Section 15.02.
	 	Repurchase at Option of Holders Upon a Fundamental Change	  	 	86	 
	 Section 15.03. 
	 	Withdrawal of Fundamental Change Repurchase Notice	  	 	89	 
	 Section 15.04.
	 	Deposit of Fundamental Change Repurchase Price	  	 	90	 
	 Section 15.05.
	 	Covenant to Comply with Applicable Laws Upon Repurchase of Notes	  	 	90	 
	
	ARTICLE 16	  

	OPTIONAL REDEMPTION	  

			
	 Section 16.01.
	 	Optional Redemption	  	 	91	 
	 Section 16.02.
	 	Notice of Optional Redemption; Selection of Notes	  	 	91	 
	 Section 16.03.
	 	Payment of Notes Called for Redemption	  	 	93	 
	 Section 16.04.
	 	Restrictions on Redemption	  	 	93	 
	
	ARTICLE 17	  

	MISCELLANEOUS PROVISIONS	  

			
	 Section 17.01.
	 	Provisions Binding on Company’s Successors	  	 	93	 
	 Section 17.02. 
	 	Official Acts by Successor Company	  	 	93	 
	 Section 17.03. 
	 	Addresses for Notices, Etc	  	 	93	 
	 Section 17.04. 
	 	Governing Law; Jurisdiction	  	 	94	 
	 Section 17.05. 
	 	Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee	  	 	95	 
	 Section 17.06.
	 	Legal Holidays	  	 	95	 
	 Section 17.07. 
	 	No Security Interest Created	  	 	95	 
	 Section 17.08. 
	 	Benefits of Indenture	  	 	95	 
	 Section 17.09.
	 	Table of Contents, Headings, Etc	  	 	96	 
	 Section 17.10. 
	 	Authenticating Agent	  	 	96	 
	 Section 17.11.
	 	Execution in Counterparts	  	 	97	 
	 Section 17.12. 
	 	Severability	  	 	97	 
	 Section 17.13. 
	 	Waiver of Jury Trial	  	 	97	 
	 Section 17.14. 
	 	Force Majeure	  	 	97	 
	 Section 17.15. 
	 	Calculations	  	 	97	 
	 Section 17.16.
	 	USA PATRIOT Act	  	 	98	 
	 Section 17.17.
	 	Tax Withholding	  	 	98	 


  
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 EXHIBIT 
  

							
	 Exhibit A
	  	Form of Note	  	 	A-1	 


  
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 INDENTURE dated as of June 14, 2022 between ALTAIR ENGINEERING INC., a Delaware
corporation, as issuer (the “Company,” as more fully set forth in Section 1.01) and U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, a national banking association, as trustee (the “Trustee,” as more fully set
forth in Section 1.01). 
 W I T N E S S E T H: 

WHEREAS, for its lawful corporate purposes, the Company has duly authorized the issuance of a single series of Securities designated as its
1.750% Convertible Senior Notes due 2027 (the “Notes” and each $1,000 principal amount thereof, unless the context otherwise requires, a “Note”), initially in an aggregate principal amount not to exceed $200,000,000
(as increased by an amount equal to the aggregate principal amount of any additional Notes purchased by the Initial Purchaser pursuant to the exercise of its option to purchase additional Notes as set forth in the Purchase Agreement), and in order
to provide the terms and conditions upon which the Notes are to be authenticated, issued and delivered, the Company has duly authorized the execution and delivery of this Indenture; and 

WHEREAS, the Form of Note, the certificate of authentication to be borne by each Note, the Form of Notice of Conversion, the Form of
Fundamental Change Repurchase Notice and the Form of Assignment and Transfer to be borne by the Notes are to be substantially in the forms hereinafter provided; and 

WHEREAS, all acts and things necessary to make the Notes, when executed by the Company and authenticated and delivered by the Trustee or a
duly authorized Authenticating Agent, as in this Indenture provided, the valid, binding and legal obligations of the Company, and this Indenture a valid agreement according to its terms, have been done and performed, and the execution of this
Indenture and the issuance hereunder of the Notes have in all respects been duly authorized. 
 NOW, THEREFORE, THIS INDENTURE WITNESSETH:

 That in order to declare the terms and conditions upon which the Notes are, and are to be, authenticated, issued and delivered, and in
consideration of the premises and of the purchase and acceptance of the Notes by the Holders thereof, the Company covenants and agrees with the Trustee for the equal and proportionate benefit of the respective Holders from time to time of the Notes
(except as otherwise provided below), as follows: 
 ARTICLE 1 

DEFINITIONS 

Section 1.01. Definitions. For all purposes of this Indenture, except as otherwise expressly provided or unless the context
otherwise requires: 
 (a) the terms defined in this Article 1 shall have the respective meanings assigned to them in this Article 1 and
include the plural as well as the singular; and 











 (b) the words “herein,” “hereof” and “hereunder” and other
words of similar import (i) when used with regard to any specified Article, Section or sub-division, refer to such Article, Section or sub-division of this
Indenture and (ii) otherwise, refer to this Indenture as a whole and not to any particular Article, Section or other subdivision.“Additional Interest” means all amounts, if any, payable pursuant to Section 4.06(d),
Section 4.06(e) and Section 6.03, as applicable. 
 “Additional Shares” shall have the meaning specified in
Section 14.03(a). 
 “Affiliate” of any specified Person means any other Person directly or indirectly controlling or
controlled by or under direct or indirect common control with such specified Person. For the purposes of this definition, “control,” when used with respect to any specified Person means the power to direct or cause the direction of the
management and policies of such Person, directly or indirectly, whether through the ownership of voting securities, by contract or otherwise; and the terms “controlling” and “controlled” have meanings correlative to the
foregoing. 
 “Bid Solicitation Agent” means the Person appointed by the Company to solicit bids for the Trading Price of
the Notes in accordance with Section 14.01(b)(i). The Company shall initially act as the Bid Solicitation Agent. 
 “Board of
Directors” means the Board of Directors (or the functional equivalent thereof) of the Company or any duly authorized committee of such Board. 

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

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

“Cash Settlement” shall have the meaning specified in Section 14.02(a). 

“Class B Common Stock” means the Class B common stock of the Company, par value $0.0001 per share, at
the date of this Indenture. 
 “Certain Distributions Conversion Period End Date” shall have the meaning specified in
Section 14.01(b)(ii). 
 “Certain Distributions Notification” shall have the meaning specified in
Section 14.01(b)(ii). 

  
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 “Charter” means the Company’s Certificate of Incorporation, as
amended, as in effect on the date of this Indenture. 
 “Clause A Distribution” shall have the meaning specified in
Section 14.04(c). 
 “Clause B Distribution” shall have the meaning specified in Section 14.04(c). 

“Clause C Distribution” shall have the meaning specified in Section 14.04(c). 

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

“Combination Settlement” shall have the meaning specified in Section 14.02(a). 

“Commission” means the Securities and Exchange Commission, as from time to time constituted, created under the Exchange Act,
or, if at any time after the execution of this instrument such Commission is not existing and performing the duties now assigned to it under the Trust Indenture Act, then the body performing such duties at such time. 

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

“Common Stock” means the Class A common stock of the Company, par value $0.0001 per share, at the date of this
Indenture, subject to Section 14.07. 
 “Company” shall have the meaning specified in the first paragraph of this
Indenture, and subject to the provisions of Article 11, shall include its successors and assigns. 
 “Company Order” means
a written order of the Company, signed by an Officer of the Company, and delivered to the Trustee. 
 “Conversion Agent”
shall have the meaning specified in Section 4.02. 
 “conversion consideration” shall have the meaning specified in
Section 14.12. 
 “Conversion Date” shall have the meaning specified in Section 14.02(c). 

“Conversion Obligation” shall have the meaning specified in Section 14.01(a). 

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

“Conversion Rate” shall have the meaning specified in Section 14.01(a). 

“Corporate Event” shall have the meaning specified in Section 14.01(b)(iii). 

  
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 “Corporate Trust Office” means the office of the Trustee at which, at any
particular time, its corporate trust business shall be administered, which office at the date hereof is located at U.S. Bank Trust Company, National Association, Corporate Trust Services,
1420 5th Ave. Seattle, WA 98101, Attention: Global Corporate Trust – Altair Engineering Inc. (Altair Engineering Inc.), or such other address as the Trustee may designate from time to
time. 
 “Custodian” means, as used in this Indenture, the Trustee, as custodian for The Depository Trust Company, with
respect to the Global Notes, or any successor entity thereto. 
 “Daily Conversion Value” means, for each of the 60
consecutive Trading Days during the Observation Period, 1/60th of the product of (a) the Conversion Rate on such Trading Day and (b) the Daily VWAP for such Trading Day. 

“Daily Measurement Value” means the Specified Dollar Amount (if any), divided by 60. 

“Daily Settlement Amount,” for each of the 60 consecutive Trading Days during the Observation Period, shall consist of: 

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

“Daily VWAP” means, for each of the 60 consecutive Trading Days during the relevant Observation Period, the per share
volume-weighted average price as displayed under the heading “Bloomberg VWAP” on Bloomberg page “ALTR <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 Trading Day (or if such volume-weighted average price is unavailable, the market value of one share of the Common Stock on such Trading Day determined, using
a volume-weighted average method, by a nationally recognized independent investment banking firm retained for this purpose by the Company). The “Daily VWAP” shall be determined without regard to after-hours trading or any other
trading outside of the regular trading session trading hours. On or after the occurrence of a Share Exchange Event, the “Daily VWAP” of a unit of Reference Property on any date shall be determined in accordance with the two
immediately preceding sentences except that (i) in the case of a Share Exchange Event in connection with which holders of Common Stock receive only cash as set forth in Section 14.07(a), the “Daily VWAP” shall be equal to
the per share amount of cash received by holders of Common Stock in such Share Exchange Event, (ii) in the case of a Share Exchange Event in connection with which holders of Common Stock receive a type of consideration other than cash or common
stock as set forth in Section 14.07(a), the “Daily VWAP” shall be the fair market value of such unit of Reference Property determined by a nationally recognized independent investment banking firm retained for this purpose by
the Company and (iii) in the case of a Share Exchange Event in connection with which holders of 

  
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Common Stock receive a combination of common stock, cash and/or a type of consideration of the kind described in clause (ii), the “Daily VWAP” shall be equal to the sum of values of
each component or portion of such unit of Reference Property determined in accordance with the two immediately preceding sentences, clause (i) and/or clause (ii), as the case may be. 

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

“Defaulted Amounts” means any amounts on any Note (including, without limitation, the Fundamental Change Repurchase Price,
the Redemption Price, principal and interest) that are payable but are not punctually paid or duly provided for. 
 “Default
Settlement Method” means, initially, Combination Settlement with a Specified Dollar Amount of $1,000 per $1,000 principal amount of Notes. By written notice to Holders, the Trustee and the Conversion Agent (if other than the Trustee), the
Company may, from time to time, change the Default Settlement Method prior to December 15, 2026, all in accordance with, and subject to, Section 14.02(a)(iv). 

“delivered” with respect to any notice to be delivered, given or mailed to a Holder pursuant to this Indenture, shall mean
notice (x) given to the Depositary (or its designee) pursuant to the standing instructions from the Depositary or its designee, including by electronic mail in accordance with accepted practices or applicable procedures of the Depositary (in
the case of a Global Note) or (y) mailed to such Holder by first class mail, postage prepaid, at its address as it appears on the Security Register, in each case in accordance with Section 17.03. Notice so “delivered” shall be
deemed to include any notice to be “mailed” or “given,” as applicable, under this Indenture. 

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

“Distributed Property” shall have the meaning specified in Section 14.04(c). 

“Effective Date” shall have the meaning specified in Section 14.03(c), except that, as used in Section 14.04 and
Section 14.05, “Effective Date” means the first date on which shares of the Common Stock trade on the applicable exchange or in the applicable market, regular way, reflecting the relevant share split or share combination, as
applicable. 
 “Event of Default” shall have the meaning specified in Section 6.01. 

“Ex-Dividend Date” means the first date on which shares of the Common Stock trade on
the applicable exchange or in the applicable market, regular way, without the right to receive the issuance, dividend or distribution in question, from the Company or, if applicable, from the seller of Common Stock on such exchange or market (in the
form of due bills or otherwise) as determined by such exchange or market. 

  
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 “Exchange Act” means the Securities and Exchange Act of 1934, as amended,
and the rules and regulations promulgated thereunder. 
 “Exchange Election” shall have the meaning specified in
Section 14.12. 
 “expiration date” shall have the meaning specified in Section 14.04(e). 

“Form of Assignment and Transfer” means the “Form of Assignment and Transfer” attached as Attachment 3 to the Form
of Note attached hereto as Exhibit A. 
 “Form of Fundamental Change Repurchase Notice” means the “Form of Fundamental
Change Repurchase Notice” attached as Attachment 2 to the Form of Note attached hereto as Exhibit A. 
 “Form of Note”
means the “Form of Note” 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 Note attached hereto as Exhibit A. 
 A “Fundamental
Change” shall be deemed to have occurred at the time after the Notes are originally issued if any of the following occurs prior to the Maturity Date: 

(a) a “person” or “group” within the meaning of Section 13(d) of the Exchange Act, other than the
Company, its direct or indirect Wholly Owned Subsidiaries and the employee benefit plans of the Company and its Wholly Owned Subsidiaries, files a Schedule TO (or any successor schedule, form or report) or any schedule, form or report under the
Exchange Act disclosing that such person or group has become the direct or indirect “beneficial owner,” as defined in Rule 13d-3 under the Exchange Act, of (i) the Common Stock representing more
than 50% of the voting power of the Common Stock or (ii) the Company’s Common Equity representing more than 50% of the voting power of the Company’s Common Equity on an aggregate basis unless, in the case of clauses (i) and (ii),
such beneficial ownership arises solely as a result of a revocable proxy delivered in response to a public proxy or consent solicitation made pursuant to the applicable rules and regulations under the Exchange Act and is not also then reportable on
Schedule 13D or Schedule 13G (or any successor schedule) under the Exchange Act regardless of whether such a filing has actually been made; provided that, for purposes of both clauses (i) and (ii), the voting power of the Common Stock and the
Class B Common Stock directly or indirectly “beneficially owned,” as defined in Rule 13d-3 under the Exchange Act, by a Permitted Holder or any Permitted Transferee (as defined in the Charter, a
“Permitted Transferee”) of such Permitted Holder will exclude (A) any shares of the Common Stock and Class B Common Stock directly or indirectly beneficially owned by such Permitted Holder (or any Permitted Transferee of such
Permitted Holder) on the date of this Indenture for so long as such shares of Common Stock or Class B Common Stock, as the case may be, are directly or indirectly beneficially owned by such Permitted Holder (or any Permitted Transferee of such
Permitted Holder) and (B) any shares of Common Stock directly or indirectly beneficially owned by such Permitted Holder (or any Permitted Transferee of such Permitted Holder) 

  
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that are acquired after the date of this Indenture by such Permitted Holder (or any Permitted Transferee of such Permitted Holder) pursuant to equity grants (or the exercise or conversion thereof
by such Permitted Holder (or any Permitted Transferee of such Permitted Holder)) outstanding on the date of this Indenture or subsequently granted under one or more of the Company’s equity incentive plans; 

(b) the consummation of (1) any recapitalization, reclassification or change of the Common Stock (other than changes
resulting from a subdivision or combination or the conversion of the Class B Common Stock into Common Stock in accordance with the Charter) as a result of which the Common Stock would be converted into, or exchanged for, stock, other
securities, other property or assets; (2) any share exchange, consolidation or merger of the Company pursuant to which the Common Stock will be converted into cash, securities or other property or assets; or (3) 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 direct or indirect Wholly Owned
Subsidiaries; provided, however, that a transaction described in clause (2) 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 shall not be a
Fundamental Change pursuant to this clause (b); 
 (c) the stockholders of the Company approve any plan or proposal for the
liquidation or dissolution of the Company; or 
 (d) the Common Stock (or other common stock underlying the Notes) ceases to
be listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors); 

provided, however, that a transaction or transactions described in clause (a) or (b) above shall not constitute a Fundamental Change, if at least 90% of
the consideration received or to be received by the holders of the Common Stock, excluding cash payments for fractional shares and cash payments made in respect of dissenters’ statutory appraisal rights, in connection with such transaction or
transactions consists of shares of common stock that are listed or quoted on any of The New York Stock Exchange, The NASDAQ Global Select Market or The NASDAQ Global Market (or any of their respective successors) or will be so listed or quoted when
issued or exchanged in connection with such transaction or transactions and as a result of such transaction or transactions such consideration, excluding cash payments for fractional shares and cash payments made in respect of dissenters’
statutory appraisal rights (subject to the provisions of Section 14.02(a)) becomes Reference Property for the Notes in accordance with Section 14.07. Any event, transaction or series of related transactions that constitute a Fundamental
Change under both clause (a) and clause (b) above (determined without giving effect to the proviso to clause (b) above) shall be deemed a Fundamental Change solely under clause (b) above (subject to the proviso to clause (b)). If
any transaction in which the Common Stock is replaced by the securities of another entity occurs, following completion of any related Make-Whole 

  
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Fundamental Change Period (or, in the case of a transaction that would have been a Fundamental Change or a Make-Whole Fundamental Change but for the proviso immediately following clause
(d) of the definition thereof, following the effective date of such transaction) references to the Company in this definition shall instead be references to such other entity. 

“Fundamental Change Company Notice” shall have the meaning specified in Section 15.02(c). 

“Fundamental Change Repurchase Date” shall have the meaning specified in Section 15.02(a). 

“Fundamental Change Repurchase Notice” shall have the meaning specified in Section 15.02(b)(i). 

“Fundamental Change Repurchase Price” shall have the meaning specified in Section 15.02(a). 

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

“Holder,” as applied to any Note, or other similar terms (but excluding the term “beneficial holder”), means any
Person in whose name at the time a particular Note is registered on the Security Register. 
 “Indenture” means this
instrument as originally executed or, if amended or supplemented as herein provided, as so amended or supplemented. 
 “Initial
Purchaser” means J.P. Morgan Securities LLC. 
 “Interest Payment Date” means June 15 and December 15 of
each year, beginning on December 15, 2022. 
 “Last Reported Sale Price” of the Common Stock on 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” shall be the last quoted bid price per share for the Common Stock in the over-the-counter market on the relevant date as
reported by OTC Markets Group Inc. or a similar organization. If the Common Stock is not so quoted, the “Last Reported Sale Price” shall be the average of the mid-point of the last bid and ask
prices per share for the Common Stock on the relevant date received from each of at least three nationally recognized independent investment banking firms selected by the Company for this purpose. The “Last Reported Sale Price”
shall be determined without regard to after-hours trading or any other trading outside of regular trading session hours. On or after the occurrence of a Share Exchange Event, the “Last Reported Sale Price” of a unit of Reference
Property on any date shall be determined in accordance with the four immediately preceding sentences except that (i) in the case of a Share Exchange Event in 

  
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connection with which holders of Common Stock receive only cash as set forth in Section 14.07(a), the “Last Reported Sale Price” shall be equal to the per share amount of
cash received by holders of Common Stock in such Share Exchange Event, (ii) in the case of a Share Exchange Event in connection with which holders of Common Stock receive a type of consideration other than cash or common stock as set forth in
Section 14.07(a), the “Last Reported Sale Price” shall be the fair market value of such unit of Reference Property determined by a nationally recognized independent investment banking firm retained for this purpose by the
Company and (iii) in the case of a Share Exchange Event in connection with which holders of Common Stock receive a combination of common stock, cash and/or a type of consideration of the kind described in clause (ii), the “Last Reported
Sale Price” shall be equal to the sum of values of each component or portion of such unit of Reference Property determined in accordance with the four immediately preceding sentences, clause (i) and/or clause (ii), as the case may be.

 “Make-Whole Fundamental Change” means any transaction or event that constitutes a Fundamental Change (determined after
giving effect to any exceptions to or exclusions from such definition, but without regard to the proviso in clause (b) of the definition thereof). 

“Make-Whole Fundamental Change Period” shall have the meaning specified in Section 14.03(a). 

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

“Maturity Date” means June 15, 2027. 

“Measurement Period” shall have the meaning specified in Section 14.01(b)(i). 

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

 “Notice of Conversion” shall have the meaning specified in Section 14.02(b). 

“Observation Period” with respect to any Note surrendered for conversion means: (i) subject to clause (ii), if the
relevant Conversion Date occurs prior to December 15, 2026, the 60 consecutive Trading Day period beginning on, and including, the second Trading Day immediately succeeding such Conversion Date; (ii) with respect to any Notes called (or
deemed called) for redemption as described in Section 14.01(b)(v), if the relevant Conversion Date occurs during the related Redemption Period, the 60 consecutive Trading Days beginning on, and including, the 61st Scheduled Trading Day
immediately preceding the relevant Redemption Date and (iii) if the relevant Conversion Date occurs on or after December 15, 2026, the 60 

  
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consecutive Trading Days beginning on, and including, the 61st Scheduled Trading Day immediately preceding the Maturity Date. 

“Offering Memorandum” means the preliminary offering memorandum dated June 9, 2022, as supplemented by the related
pricing term sheet dated June 9, 2022, relating to the offering and sale of the Notes. 
 “Officer” means, with
respect to the Company, the Chairman of the Board of Directors, a Chief Executive Officer, a President, a Chief Financial Officer, a Chief Operating Officer, a Chief Legal Officer, a Chief Accounting Officer, any Executive Vice President, any Senior
Vice President, any Vice President, the Treasurer or any Assistant Treasurer, the Controller or any Assistant Controller or the Secretary or any Assistant Secretary. 

“Officer’s Certificate” when used with respect to the Company, means a certificate signed by any Officer of the Company.
Each such certificate shall include the statements provided for in Section 17.05, if and to the extent required by the provisions of such Section. 

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

“Opinion of Counsel” means an opinion in writing subject to customary exceptions of legal counsel, who may be an employee of
or counsel for the Company, that is delivered to the Trustee in accordance with the terms hereof and which shall be reasonably satisfactory to the Trustee. Each such opinion shall include the statements provided for in Section 17.05, if and to
the extent required by the provisions thereof. 
 “Optional Redemption” shall have the meaning specified in
Section 16.01. 
 “Outstanding,” when used with reference to Notes, means, subject to the provisions of
Section 8.04, as of any particular time, all Notes theretofore authenticated and delivered by the Trustee under this Indenture, except: 

(a) Notes theretofore canceled by the Trustee or any Paying Agent, or delivered to the Trustee or any Paying Agent for
cancellation or that have previously been canceled; 
 (b) Notes or portions thereof for the payment or redemption of which
moneys in the necessary amount shall have been deposited in trust with the Trustee or with any Paying Agent (other than the Company) or shall have been set aside and segregated in trust by the Company (if the Company shall act as its own Paying
Agent); provided, however, that if such Notes or portions of such Notes are to be redeemed prior to the maturity thereof, notice of such redemption shall have been given as provided in Article 16, or provision satisfactory to the
Trustee shall have been made for giving such notice; 
 (c) Notes in lieu of or in substitution for which other Notes shall
have been authenticated and delivered pursuant to the terms of Section 2.06; 

  
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 (d) Notes that have been paid pursuant to Section 2.06 unless proof
satisfactory to the Trustee is presented that any such Notes are held by protected purchasers in due course; 
 (e) Notes
converted pursuant to Article 14 and required to be cancelled pursuant to Section 2.06 of this Indenture; 
 (e) Notes
repurchased by the Company pursuant to the penultimate sentence of Section 2.10; 
 (f) Notes repurchased by the Company
pursuant to Article 15; and 
 (g) Notes redeemed by the Company pursuant to Article 16. 

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

“Permitted Holders” means (a) James R. Scapa, the Company’s co-founder and
the Company’s chairman and chief executive officer as of the date of this Indenture, and (b) George J. Christ, the Company’s co-founder. 

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

“Physical Notes” means permanent certificated Notes in registered form issued in minimum denominations of $1,000 principal
amount and integral multiples of $1,000 thereof. 
 “Physical Settlement” shall have the meaning specified in
Section 14.02(a). 
 “Predecessor Note” of any particular Note means every previous Note evidencing all or a portion
of the same debt as that evidenced by such particular Note; and, for the purposes of this definition, any Note authenticated and delivered under Section 2.06 in lieu of or in exchange for a mutilated, lost, destroyed or stolen Note shall be
deemed to evidence the same debt as the mutilated, lost, destroyed or stolen Note that it replaces. 
 “Purchase Agreement”
means that certain Purchase Agreement, dated as of June 9, 2022, between the Company and the Initial Purchaser. 
 “Record
Date” means, with respect to any dividend, distribution or other transaction or event in which the holders of 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, by statute, by contract or otherwise). 

  
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 “Redemption” means any redemption of Notes at the option of the Company
pursuant to Article 16. 
 “Redemption Date” shall have the meaning specified in Section 16.02. 

“Redemption Notice” shall have the meaning specified in Section 16.02. 

“Redemption Notice Date” shall have the meaning specified in Section 16.02. 

“Redemption Period” shall have the meaning specified in Section 14.01(b)(v). 

“Redemption Price” means, for any Notes to be redeemed pursuant to Section 16.01, 100% of the principal amount of the
Notes to be redeemed, plus accrued and unpaid interest, if any, to, but excluding, the Redemption Date (unless the Redemption Date falls after a Regular Record Date but on or prior to the immediately succeeding Interest Payment Date, in
which case interest accrued to the Interest Payment Date will be paid on such Interest Payment Date to Holders of record of such Notes on such Regular Record Date, and the Redemption Price will be equal to 100% of the principal amount of the Notes
to be redeemed). 
 “Reference Property” shall have the meaning specified in Section 14.07(a). 

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

“Reporting Obligations” shall have the meaning specified in Section 6.03. 

“Resale Restriction Termination Date” shall have the meaning specified in Section 2.05(c). 

“Responsible Officer” when used with respect to the Trustee means any officer within the Corporate Trust Office of the
Trustee, including any vice president, assistant vice president, assistant secretary, assistant treasurer, 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 relating to this Indenture is referred because of such person’s knowledge of and familiarity with the particular subject and, in each case, who shall have direct
responsibility for the administration of this Indenture. 
 “Restricted Securities” shall have the meaning specified in
Section 2.05(c). 
 “Restrictive Legend” shall have the meaning specified in Section 2.05(c). 

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

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

“Scheduled Trading Day” means a day that is scheduled to be a Trading Day on the principal U.S. national or regional
securities exchange or market on which the Common Stock is 

  
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listed or admitted for trading. If the Common Stock is not so listed or admitted for trading, “Scheduled Trading Day” means a Business Day. 

“Securities Act” means the Securities Act of 1933, as amended, and the rules and regulations promulgated thereunder. 

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

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

“Settlement Amount” has the meaning specified in Section 14.02(a)(v). 

“Settlement Method” means, with respect to any conversion of Notes, Physical Settlement, Cash Settlement or Combination
Settlement, as elected (or deemed to have been elected) by the Company. 
 “Settlement Method Election Deadline” has the
meaning specified in Section 14.02(a)(iii). 
 “Settlement Notice” has the meaning specified in
Section 14.02(a)(iii). 
 “Share Exchange Event” shall have the meaning specified in Section 14.07(a). 

“Significant Subsidiary” means a Subsidiary of the Company that meets the definition of “significant subsidiary” in
Article 1, Rule 1-02 of Regulation S-X under the Exchange Act as in effect on the date hereof; provided that, in the case of a Subsidiary that meets the criteria of
clause (3) of the definition thereof but not clause (1) or (2) thereof, such Subsidiary shall not be deemed to be a Significant Subsidiary unless the Subsidiary’s income or loss from continuing operations before income taxes,
extraordinary items and cumulative effect of a change in accounting principles exclusive of amounts attributable to any non-controlling interests for the last completed fiscal year prior to the date of such
determination exceeds $15,000,000. 
 “Specified Dollar Amount” means the maximum cash amount per $1,000 principal amount
of Notes to be received upon conversion as specified (or deemed specified) in the Settlement Notice related to any converted Notes. 

“Spin-Off” shall have the meaning specified in Section 14.04(c). 

“Stock Price” shall have the meaning specified in Section 14.03(c). 

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

  
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such Person and one or more Subsidiaries of such Person; or (iii) one or more Subsidiaries of such Person. 

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

“Trading Day” means, except for the purposes of determining amounts due upon conversion, a day on which (i) trading in
the Common Stock (or other security for which a closing sale price must be determined) generally occurs on The Nasdaq Global Select Market or, if the Common Stock (or such other security) is not then listed on The Nasdaq Global Select Market, on the
principal other U.S. national or regional securities exchange on which the Common Stock (or such other security) is then listed or, if the Common Stock (or such other security) is not then listed on a U.S. national or regional securities exchange,
on the principal other market on which the Common Stock (or such other security) is then 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; provided that if the Common Stock (or such other security) is not so listed or traded, “Trading Day” means a Business Day; and provided, further, that for purposes of determining amounts due upon
conversion only, “Trading Day” means a day on which (x) there is no Market Disruption Event and (y) trading in the Common Stock generally occurs on The Nasdaq Global Select Market or, if the Common Stock is not then listed
on The Nasdaq Global Select Market, on the principal other U.S. national or regional securities exchange on which the Common Stock is then listed or, if the Common Stock is not then listed on a U.S. national or regional securities exchange, on the
principal other market on which the Common Stock is then listed or admitted for trading, except that if the Common Stock is not so listed or admitted for trading, “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 the Notes obtained by the Bid Solicitation Agent for $2,000,000 principal amount of Notes at approximately 3:30 p.m., New York City time, on such determination date from three independent nationally recognized securities dealers
the Company selects for this purpose; provided that if three such bids cannot reasonably be obtained by the Bid Solicitation Agent but two such bids are obtained, then the average of the two bids shall be used, and if only one such bid can
reasonably be obtained by the Bid Solicitation Agent, that one bid shall be used. If the Bid Solicitation Agent cannot reasonably obtain at least one bid for $2,000,000 principal amount of Notes from a nationally recognized securities dealer
selected by the Company on a determination date, then the Trading Price per $1,000 principal amount of Notes on such determination date shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the
Conversion Rate. Any determination of the Trading Price shall be conclusive absent manifest error. 
 “Trading Price
Condition” shall have the meaning specified in Section 14.01(b)(i). 
 “transfer” shall have the meaning
specified in Section 2.05(c). 
 “Trigger Event” shall have the meaning specified in Section 14.04(c). 

  
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 “Trust Indenture Act” means the Trust Indenture Act of 1939, as amended, as
it was in force at the date of execution of this Indenture; provided, however, that in the event the Trust Indenture Act of 1939 is amended after the date hereof, the term “Trust Indenture Act” shall mean, to the extent
required by such amendment, the Trust Indenture Act of 1939, as so amended. 
 “Trustee” means the Person named as the
“Trustee” in the first paragraph of this Indenture in its capacity as such until a successor trustee shall have become such pursuant to the applicable provisions of this Indenture, and thereafter “Trustee” shall
mean or include each Person who is then a Trustee hereunder. 
 “unit of Reference Property” shall have the meaning
specified in Section 14.07(a). 
 “Valuation Period” shall have the meaning specified in Section 14.04(c). 

“Wholly Owned Subsidiary” means, with respect to any Person, any Subsidiary of such Person, except that, solely for purposes
of this definition, the reference to “more than 50%” in the definition of “Subsidiary” shall be deemed replaced by a reference to “100%”. 

Section 1.02. References to Interest. Unless the context otherwise requires, any reference to interest on, or in respect
of, any Note in this Indenture shall be deemed to include Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to any of Section 4.06(d), Section 4.06(e) and Section 6.03. Unless the
context otherwise requires, any express mention of Additional Interest in any provision hereof shall not be construed as excluding Additional Interest in those provisions hereof where such express mention is not made. 

ARTICLE 2 
 ISSUE,
DESCRIPTION, EXECUTION, REGISTRATION AND EXCHANGE OF NOTES 

Section 2.01. Designation and Amount. The Notes shall be designated as the “1.750% Convertible Senior Notes due
2027.” The aggregate principal amount of Notes that may be authenticated and delivered under this Indenture is initially limited to $200,000,000 (as increased by an amount equal to the aggregate principal amount of any additional Notes
purchased by the Initial Purchaser pursuant to the exercise of its option to purchase additional Notes as set forth in the Purchase Agreement), subject to Section 2.10 and except for Notes authenticated and delivered upon registration or
transfer of, or in exchange for, or in lieu of other Notes to the extent expressly permitted hereunder. 
 Section 2.02. Form of
Notes. The Notes and the Trustee’s certificate of authentication to be borne by such Notes shall be substantially in the respective forms set forth in Exhibit A, the terms and provisions of which shall constitute, and are hereby
expressly incorporated in and made a part of this Indenture. To the extent applicable, the Company and the Trustee, by their execution and delivery of this Indenture, expressly agree to such terms and provisions and to be bound thereby. 

  
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 Any Global Note may be endorsed with or have incorporated in the text thereof such legends
or recitals or changes not inconsistent with the provisions of this Indenture as may be required by the Custodian or the Depositary, or as may be required to comply with any applicable law or any regulation thereunder or with the rules and
regulations of any securities exchange or automated quotation system upon which the Notes may be listed or traded or designated for issuance or to conform with any usage with respect thereto, or to indicate any special limitations or restrictions to
which any particular Notes are subject. 
 Any of the Notes may have such letters, numbers or other marks of identification and such
notations, legends or endorsements as the Officer executing the same may approve (execution thereof to be conclusive evidence of such approval) and as are not inconsistent with the provisions of this Indenture, or as may be required to comply with
any law or with any rule or regulation made pursuant thereto or with any rule or regulation of any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, or to conform to usage or to indicate
any special limitations or restrictions to which any particular Notes are subject. 
 Each Global Note shall represent such principal amount
of the Outstanding Notes as shall be specified therein and shall provide that it shall represent the aggregate principal amount of Outstanding Notes from time to time endorsed thereon and that the aggregate principal amount of Outstanding Notes
represented thereby may from time to time be increased or reduced to reflect repurchases, redemptions, cancellations, conversions, transfers or exchanges permitted hereby. Any endorsement of a Global Note to reflect the amount of any increase or
decrease in the amount of Outstanding Notes represented thereby shall be made by the Trustee or the Custodian, at the direction of the Trustee, in such manner and upon instructions given in accordance with this Indenture. Payment of principal
(including the Fundamental Change Repurchase Price or the Redemption Price, if applicable) of, and accrued and unpaid interest on, a Global Note shall be made to the Holder of such Note on the date of payment, unless a record date or other means of
determining Holders eligible to receive payment is provided for herein. 
 Section 2.03. Date and Denomination of Notes; Payments of
Interest and Defaulted Amounts. (a) The Notes shall be issuable in registered form without coupons in minimum denominations of $1,000 principal amount and integral multiples of $1,000 thereof. Each Note shall be dated the date of its
authentication and shall bear interest from the date specified on the face of such Note. Accrued interest on the Notes shall be computed on the basis of a 360-day year composed of twelve 30-day months and, for partial months, on the basis of actual days elapsed over a 30-day month. 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. 
 (b) The Person in whose name any Note (or its Predecessor Note)
is registered on the Security Register at the close of business on any Regular Record Date with respect to any Interest Payment Date shall be entitled to receive the interest payable on such Interest Payment Date. Principal on any Physical Note,
shall be payable at the office or agency of the Company maintained by the Company for such purposes in the continental United States of America, which shall initially be the Corporate Trust Office. Principal on any Global Note shall be paid by wire
transfer of immediately available funds to the account of the Depositary or its nominee. 

  
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The Company shall pay, or cause the Paying Agent to pay, interest (i) on any Physical Notes (A) to Holders holding Physical Notes having an aggregate principal amount of $5,000,000 or
less, by check mailed to the Holders of these Notes at their address as it appears in the Security Register and (B) to Holders holding Physical Notes having an aggregate principal amount of more than $5,000,000, either by check mailed to each
such Holder or, upon written 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 if such
holder has provided the Trustee or Paying Agent (if other than the Trustee) with the requisite information necessary to make such wire transfer, which application shall remain in effect until the Holder notifies, in writing, the Security Registrar
to the contrary or (ii) on any Global Note by wire transfer of immediately available funds to the account of the Depositary or its nominee. 

(c) Any Defaulted Amounts shall forthwith cease to be payable to the Holder on the relevant payment date but shall accrue interest per annum at
the rate borne by the Notes, subject to the enforceability thereof under applicable law, from, and including, such relevant payment date, and such Defaulted Amounts together with such interest thereon shall be paid by the Company, at its election in
each case, as provided in clause (i) or (ii) below: 
 (i) The Company may elect to make payment of any Defaulted
Amounts to the Persons in whose names the Notes (or their respective Predecessor Notes) are registered at the close of business on a special record date for the payment of such Defaulted Amounts, which shall be fixed in the following manner. The
Company shall notify the Trustee in writing of the amount of the Defaulted Amounts proposed to be paid on each Note and the date of the proposed payment (which shall be not less than 25 days after the receipt by the Trustee of such notice, unless
the Trustee shall agree to an earlier date), and at the same time the Company shall deposit with the Trustee an amount of money equal to the aggregate amount to be paid in respect of such Defaulted Amounts or shall make arrangements satisfactory to
the Trustee for such deposit on or prior to the date of the proposed payment, such money when deposited to be held in trust for the benefit of the Persons entitled to such Defaulted Amounts as in this clause provided. Thereupon the Company shall fix
a special record date for the payment of such Defaulted Amounts which shall be not more than 15 days and not less than 10 days prior to the date of the proposed payment, and not less than 10 days after the receipt by the Trustee of the notice of the
proposed payment. The Company shall promptly notify the Trustee in writing of such special record date and in such notice, instruct the Trustee to send such notice to Holders and the Trustee, in the name and at the expense of the Company, shall
cause notice of the proposed payment of such Defaulted Amounts and the special record date therefor to be sent electronically or mailed, first-class postage prepaid, to each Holder at its address as it appears in the Security Register, not less than
10 days prior to such special record date. Notice of the proposed payment of such Defaulted Amounts and the special record date therefor having been so sent or mailed, such Defaulted Amounts shall be paid to the Persons in whose names the Notes (or
their respective Predecessor Notes) are registered at the close of business on such special record date and shall no longer be payable pursuant to the following clause (ii) of this Section 2.03(c). The


  
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Trustee shall have no responsibility whatsoever for the calculation of the Defaulted Amounts. 

(ii) The Company may make payment of any Defaulted Amounts in any other lawful manner not inconsistent with the requirements of
any securities exchange or automated quotation system on which the Notes may be listed or designated for issuance, and upon such written notice as may be required by such exchange or automated quotation system, 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. 

Section 2.04. Execution, Authentication and Delivery of Notes. The Notes shall be signed in the name and on behalf
of the Company by the manual, electronic or facsimile or other electronic signature of one of its Officers. 
 At any time and from time to
time after the execution and delivery of this Indenture, the Company may deliver Notes executed by the Company to the Trustee for authentication, together with a Company Order for the authentication and delivery of such Notes, and the Trustee in
accordance with such Company Order shall authenticate and deliver such Notes, without any further action by the Company hereunder; provided that the Trustee shall be entitled to receive an Officer’s Certificate and an Opinion of Counsel
of the Company with respect to the issuance, authentication and delivery of such Notes. 
 Only such Notes as shall bear thereon a
certificate of authentication substantially in the form set forth on the form of Note attached as Exhibit A hereto, executed manually by an authorized signatory of the Trustee (or an Authenticating Agent appointed by the Trustee as provided by
Section 17.10), shall be entitled to the benefits of this Indenture or be valid or obligatory for any purpose. Such certificate by the Trustee (or such an Authenticating Agent) upon any Note executed by the Company shall be conclusive evidence
that the Note so authenticated has been duly authenticated and delivered hereunder and that the Holder is entitled to the benefits of this Indenture. 

In case any Officer of the Company who shall have signed any of the Notes shall cease to be such Officer before the Notes so signed shall have
been authenticated and delivered by the Trustee, or disposed of by the Company, such Notes nevertheless may be authenticated and delivered or disposed of as though the person who signed such Notes had not ceased to be such Officer of the Company;
and any Note may be signed on behalf of the Company by such persons as, at the actual date of the execution of such Note, shall be the Officers of the Company, although at the date of the execution of this Indenture any such person was not such an
Officer. 
 Section 2.05. Exchange and Registration of Transfer of Notes; Restrictions on Transfer; Depositary.
(a) The Company shall cause to be kept at the Corporate Trust Office a register (the register maintained in such office or in any other office or agency of the Company designated pursuant to Section 4.02, the “Security
Register”) in which, subject to such reasonable regulations as it may prescribe, the Company shall provide for the registration of Notes and of transfers of Notes. Such register shall be in written form or in any form capable of being
converted into written form within a reasonable period of time. The Trustee is hereby initially 

  
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appointed the “Security Registrar” for the purpose of registering Notes and transfers of Notes as herein provided. The Company may appoint one or more co- Security Registrars in accordance with Section 4.02. 
 Upon surrender for registration of
transfer of any Note to the Security Registrar or any co- Security Registrar, and satisfaction of the requirements for such transfer set forth in this Section 2.05, the Company shall execute, and deliver
to the Trustee for authentication together with a Company Order and the Trustee shall 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 legends as may be required by this Indenture. 
 Notes may be exchanged for other Notes of any authorized denominations and
of a like aggregate principal amount, upon surrender of the Notes to be exchanged at any such office or agency maintained by the Company pursuant to Section 4.02. Whenever any Notes are so surrendered for exchange, the Company shall execute,
and deliver to the Trustee for authentication together with a Company Order and the Trustee shall deliver, the Notes that the Holder making the exchange is entitled to receive, bearing registration numbers not contemporaneously outstanding. 

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

No service charge shall be imposed by the Company, the Trustee, the Security Registrar, any co-
Security Registrar or the Paying Agent for any exchange or registration of transfer of Notes, but the Company may require a Holder to pay a sum sufficient to cover any documentary, stamp or similar issue or transfer tax required in connection
therewith as a result of the name of the Holder of new Notes issued upon such exchange or registration of transfer being different from the name of the Holder of the old Notes surrendered for exchange or registration of transfer. 

None of the Company, the Trustee, the Security Registrar or any co- Security Registrar shall be
required to exchange or register a transfer of (i) any Notes surrendered for conversion or, if a portion of any Note is surrendered for conversion, such portion thereof surrendered for conversion, (ii) any Notes, or a portion of any Note,
surrendered for repurchase (and not withdrawn) in accordance with Article 15 or (iii) any Notes, or a portion of any Note, selected for Redemption in accordance with Article 16. 

All Notes issued upon any registration of transfer or exchange of Notes in accordance with this Indenture 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. 

(b) So long as the Notes are eligible for book-entry settlement with the Depositary, unless otherwise required by law, subject to the fourth
paragraph from the end of Section 2.05(c) all Notes shall be represented by one or more Notes in global form (each, a “Global Note”) 

  
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registered in the name of the Depositary or the nominee of the Depositary. The transfer and exchange of beneficial interests in a Global Note that does not involve the issuance of a Physical Note
shall be effected through the Depositary in accordance with this Indenture (including the restrictions on transfer set forth herein) and the procedures of the Depositary therefor. 

(c) Every Note that bears or is required under this Section 2.05(c) to bear the legend set forth in this Section 2.05(c) (together
with any Common Stock issued upon conversion of the Notes that is required to bear the legend set forth in Section 2.05(d), collectively, the “Restricted Securities”) shall be subject to the restrictions on transfer set forth
in this Section 2.05(c) (including the legend set forth below), unless such restrictions on transfer shall be eliminated or otherwise waived by written consent of the Company, 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 2.05(c) and Section 2.05(d), the term “transfer” encompasses any sale, pledge, transfer or other
disposition whatsoever of any Restricted Security. 
 Until the date (the “Resale Restriction Termination Date”) that is
the later of (1) the date that is one year after the last date of original issuance of the Notes, or such shorter period of time as permitted by Rule 144 or any successor provision thereto, and (2) such later date, if any, as may be
required by applicable law, any certificate evidencing such Note (and all securities issued in exchange therefor or substitution thereof, other than Common Stock, if any, issued upon conversion thereof, which shall bear the legend set forth in
Section 2.05(d), if applicable) shall bear a legend in substantially the following form (the “Restrictive Legend”) (unless such Notes have been transferred pursuant to a registration statement that has become or been declared
effective under the Securities Act and that continues to be effective at the time of such transfer, or sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, or unless
otherwise agreed by the Company in writing, with notice thereof to the Trustee): 
 THIS SECURITY AND THE CLASS A COMMON STOCK, IF ANY,
ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE
FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER: 
 (1) REPRESENTS THAT IT AND
ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2) AGREES FOR THE BENEFIT OF ALTAIR ENGINEERING INC. (THE “COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE OR
OTHERWISE TRANSFER THIS SECURITY AND THE CLASS A COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY, IF ANY, OR ANY BENEFICIAL INTEREST HEREIN OR THEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL
ISSUE DATE 

  
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HEREOF OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE
LAW, EXCEPT: 
 (A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 

(B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF
SUCH TRANSFER, OR 
 (C) TO A PERSON REASONABLY BELIEVED TO BE A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A
UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT
OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 PRIOR TO THE REGISTRATION OF ANY TRANSFER IN
ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER FOR THE COMPANY TO DETERMINE THAT THE PROPOSED
TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

NO AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY OR PERSON THAT HAS BEEN AN AFFILIATE (AS DEFINED IN RULE 144
UNDER THE SECURITIES ACT) OF THE COMPANY DURING THE THREE IMMEDIATELY PRECEDING MONTHS MAY PURCHASE, OTHERWISE ACQUIRE OR OWN THIS SECURITY OR A BENEFICIAL INTEREST HEREIN. 

No transfer of any Note prior to the Resale Restriction Termination Date will be registered by the Security Registrar unless the applicable
box on the Form of Assignment and Transfer has been checked. 
 Any Note (or security issued in exchange or substitution therefor) (i)
as to which such restrictions on transfer shall have expired in accordance with their terms, (ii) that has been transferred pursuant to a registration statement that has become effective or been declared effective under the Securities Act and
that continues to be effective at the time of such transfer or (iii) that has been sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, may, upon surrender of
such Note for exchange to the Security Registrar in accordance with the provisions of this Section 2.05, be exchanged for a new Note or Notes, of like tenor and aggregate principal amount, which shall


  
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not bear the Restrictive Legend required by this Section 2.05(c) and shall not be assigned (or deemed assigned) a restricted CUSIP number. The Restrictive Legend set forth above and affixed
on any Note will be deemed, in accordance with the terms of the certificate representing such Note, to be removed therefrom upon the Company’s delivery to the Trustee of written notice to such effect, without further action by the Company, the
Trustee, the Holder(s) thereof or any other Person; at such time, such Note will be deemed to be assigned an unrestricted CUSIP number as provided in the certificate representing such Note, it being understood that the Depositary of any Global Note
may require a mandatory exchange or other process to cause such Global Note to be identified by an unrestricted CUSIP number in the facilities of such Depositary. Without limiting the generality of any other provision of this Indenture, the Trustee
will be entitled to receive an instruction letter from the Company before taking any action with respect to effecting any such mandatory exchange or other process. The Company and the Trustee reserve the right to require the delivery of such legal
opinions, certifications or other evidence as may reasonably be required in order for the Company to determine that any proposed transfer of any Note is being made in compliance with the Securities Act and applicable state securities laws. 

The Company shall be entitled to instruct the Custodian in writing to so surrender any Global Note as to which any of the conditions set forth
in clauses (i) through (iii) of the immediately preceding paragraph have been satisfied, and, upon such instruction, the Custodian shall so surrender such Global Note for exchange; and any new Global Note so exchanged therefor shall not bear
the Restrictive Legend specified in this Section 2.05(c) and shall not be assigned (or deemed assigned) a restricted CUSIP number. The Company shall promptly notify the Trustee in writing upon the occurrence of the Resale Restriction
Termination Date and promptly after a registration statement, if any, with respect to the Notes or any Common Stock issued upon conversion of the Notes has been declared effective under the Securities Act. Any exchange pursuant to the foregoing
paragraph shall be in accordance with the procedures of the Depositary. 
 Notwithstanding any other provisions of this Indenture (other
than the provisions set forth in this Section 2.05(c)), a Global Note may not be transferred as a whole or in part except (i) by the Depositary to a nominee of the Depositary or by a nominee of the Depositary to the Depositary or another
nominee of the Depositary or by the Depositary or any such nominee to a successor Depositary or a nominee of such successor Depositary and (ii) for exchange of a Global Note or a portion thereof for one or more Physical Notes in accordance with
the second immediately succeeding paragraph. 
 The Depositary shall be a clearing agency registered under the Exchange Act. The Company
initially appoints The Depository Trust Company to act as Depositary with respect to each Global Note. Initially, each Global Note shall be issued to the Depositary, registered in the name of Cede & Co., as the nominee of the Depositary,
and deposited with the Trustee as custodian for the Depositary. The Trustee shall have no responsibility for the actions or inactions of the Depositary 

At such time as all interests in a Global Note have been converted, canceled, repurchased, redeemed or transferred, such Global Note shall be,
upon receipt thereof, canceled by the Trustee 

  
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in accordance with standing procedures and existing instructions between the Depositary and the Custodian. At any time prior to such cancellation, if any interest in a Global Note is exchanged
for Physical Notes, converted, canceled, repurchased, redeemed or transferred to a transferee who receives Physical Notes therefor or any Physical Note is exchanged or transferred for part of such Global Note, the principal amount of such Global
Note shall, in accordance with the standing procedures and instructions existing between the Depositary and the Custodian, be appropriately reduced or increased, as the case may be, and an endorsement shall be made on such Global Note, by the
Trustee or the Custodian, at the direction of the Trustee, to reflect such reduction or increase. 
 None of the Company, the Trustee, the
Paying Agent or the Conversion Agent or any agent of the Company shall have any responsibility or liability for any act or omission of the Depositary, or for any aspect of the records relating to or payments made on account of beneficial ownership
interests of a Global Note or maintaining, supervising or reviewing any records relating to such beneficial ownership interests. 
 If
(i) the Depositary notifies the Company at any time that the Depositary is unwilling or unable to continue as depositary for the Global Notes and a successor depositary is not appointed within 90 days, (ii) the Depositary ceases to be
registered as a clearing agency under the Exchange Act and a successor depositary is not appointed within 90 days or (iii) an Event of Default with respect to the Notes has occurred and is continuing and a beneficial owner of any Note requests
that its beneficial interest therein be exchanged for a Physical Note, the Company shall execute, and the Trustee, upon receipt of an Officer’s Certificate, and a Company Order for the authentication and delivery of Notes, shall authenticate
and deliver (x) in the case of clause (iii), a Physical Note to such beneficial owner in a principal amount equal to the principal amount of such Note corresponding to such beneficial owner’s beneficial interest and (y) in the case of
clause (i) or (ii), Physical Notes to each beneficial owner of the related Global Notes (or a portion thereof) in an aggregate principal amount equal to the aggregate principal amount of such Global Notes in exchange for such Global Notes, and
upon delivery of the Global Notes to the Trustee such Global Notes shall be canceled. 
 Physical Notes issued in exchange for all or a part
of the Global Note pursuant to this Section 2.05(c) shall be registered in such names and in such authorized denominations as the Depositary, pursuant to instructions from its direct or indirect participants or otherwise, shall instruct the
Trustee. Upon execution and authentication, the Trustee shall deliver such Physical Notes to the Persons in whose names such Physical Notes are so registered. 

Neither the Company nor the Trustee shall have any responsibility or liability for any act or omission of the Depositary. All notices and
communications to be given to the Holders and all payments to be made to Holders in respect of the Notes shall be given or made only to, or upon the order of, the registered Holder(s) (which shall be the Depositary or its nominee in the case of a
Global Note). 
 The rights of beneficial owners in any Global Note shall be exercised only through the Depositary subject to the procedures
of the Depositary. The Trustee may rely and shall be fully 

  
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protected in relying upon information furnished by the Depositary with respect to its members, participants and any beneficial owners. 

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

THIS SECURITY HAS NOT BEEN REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE
OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL INTEREST HEREIN, THE ACQUIRER: 

(1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED INSTITUTIONAL BUYER” (WITHIN THE
MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2) AGREES FOR THE BENEFIT OF ALTAIR ENGINEERING, INC. (THE “COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE OR
OTHERWISE TRANSFER THIS SECURITY OR ANY BENEFICIAL INTEREST HEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL ISSUE DATE OF THE SERIES OF NOTES UPON THE CONVERSION OF WHICH THIS SECURITY WAS ISSUED OR SUCH
SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT: 

(A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 

(B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER THE SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF
SUCH TRANSFER, OR 
 (C) TO A PERSON REASONABLY BELIEVED TO BE A QUALIFIED INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A
UNDER THE SECURITIES ACT, OR 

  
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 (D) PURSUANT TO AN EXEMPTION FROM REGISTRATION PROVIDED BY RULE 144 UNDER
THE SECURITIES ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 PRIOR TO THE REGISTRATION
OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRANSFER AGENT FOR THE COMPANY’S CLASS A COMMON STOCK RESERVE THE RIGHT TO REQUIRE THE DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY
REASONABLY BE REQUIRED IN ORDER FOR THE COMPANY TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM
THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 Any such Common Stock (i) as to which such restrictions on transfer shall have
expired in accordance with their terms, (ii) that has been transferred pursuant to a registration statement that has become or been declared effective under the Securities Act and that continues to be effective at the time of such transfer or
(iii) that has been sold pursuant to the exemption from registration provided by Rule 144 or any similar provision then in force under the Securities Act, may, upon surrender of the certificates representing such shares of Common Stock for
exchange in accordance with the procedures of the transfer agent for the Common Stock, be exchanged for a new certificate or certificates for a like aggregate number of shares of Common Stock, which shall not bear the restrictive legend required by
this Section 2.05(d). 
 (e) Any Note or Common Stock issued upon the conversion or exchange of a Note that is repurchased or owned by
any Affiliate of the Company (or any Person who was an Affiliate of the Company at any time during the three months preceding) may not be resold by such Affiliate (or such Person, as the case may be) unless registered under the Securities Act or
resold pursuant to an exemption from the registration requirements of the Securities Act in a transaction that results in such Note or Common Stock, as the case may be, no longer being a “restricted security” (as defined under Rule 144
under the Securities Act). The Company shall cause any Note that is repurchased or owned by it to be surrendered to the Trustee for cancellation in accordance with Section 2.08. 

(f) Notwithstanding anything contained herein to the contrary, neither the Trustee nor the Security Registrar shall be responsible for
ascertaining whether any transfer complies with the registration provisions of, or exemptions from, the Securities Act, applicable state securities laws or other applicable law. 

(g) Neither the Trustee nor any agent shall have any responsibility or liability for any actions taken or not taken by the Depositary, and may
assume performance absent written notice to the contrary. 
 (h) Members of, or participants in, the Depositary shall have no rights under
this Indenture with respect to any Global Note held on their behalf by the Depositary, or the Trustee as its custodian, or under the Global Note, and the Depositary may be treated by the Company, the Trustee and any agent of the Company or the
Trustee as the absolute owner of the Global Note 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 impair, as between the Depositary and Participants, the operation of customary practices governing the exercise of the rights of a Holder of any Note. 

Section 2.06. Mutilated, Destroyed, Lost or Stolen Notes. In case any Note shall become mutilated or be destroyed, lost or
stolen, the Company in its discretion may execute, and upon receipt of a Company Order, the Trustee or an authenticating agent appointed by the Trustee 

  
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shall authenticate and deliver, a new Note, bearing a registration number not contemporaneously outstanding, in exchange and substitution for the mutilated Note, or in lieu of and in substitution
for the Note so destroyed, lost or stolen. In every case the applicant for a substituted Note shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save
each of them harmless from any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction, loss or theft, the applicant shall also furnish to the Company, to the Trustee and, if applicable, to
such authenticating agent evidence to their satisfaction of the destruction, loss or theft of such Note and of the ownership thereof. 
 The
Trustee or such authenticating agent may authenticate any such substituted Note and deliver the same upon the receipt of such security or indemnity as the Trustee, the Company and, if applicable, such authenticating agent may require. No service
charge shall be imposed by the Company, the Trustee, the Security Registrar, any co- Security Registrar or the Paying Agent upon the issuance of any substitute Note, but the Company may require a Holder to pay
a sum sufficient to cover any documentary, stamp or similar issue or transfer tax required in connection therewith as a result of the name of the Holder of the new substitute Note being different from the name of the Holder of the old Note that
became mutilated or was destroyed, lost or stolen. In case any Note that has matured or is about to mature or has been surrendered for required repurchase or is about to be converted in accordance with Article 14 shall become mutilated or be
destroyed, lost or stolen, the Company may, in its sole discretion, instead of issuing a substitute Note, pay or authorize the payment of or convert or authorize the conversion of the same (without surrender thereof except in the case of a mutilated
Note), as the case may be, if the applicant for such payment or conversion shall furnish to the Company, to the Trustee and, if applicable, to such authenticating agent such security or indemnity as may be required by them to save each of them
harmless for any loss, liability, cost or expense caused by or connected with such substitution, and, in every case of destruction, loss or theft, evidence satisfactory to the Company, the Trustee and, if applicable, any Paying Agent or Conversion
Agent evidence of their satisfaction of the destruction, loss or theft of such Note and of the ownership thereof. 
 Every substitute Note
issued pursuant to the provisions of this Section 2.06 by virtue of the fact that any Note is destroyed, lost or stolen shall constitute an additional contractual obligation of the Company, whether or not the destroyed, lost or stolen Note
shall be found at any time, and shall be entitled to all the benefits of (but shall be subject to all the limitations set forth in) this Indenture equally and proportionately with any and all other Notes duly issued hereunder. To the extent
permitted by law, all Notes shall be held and owned upon the express condition that the foregoing provisions are exclusive with respect to the replacement, payment, redemption, conversion or repurchase of mutilated, destroyed, lost or stolen Notes
and shall preclude any and all other rights or remedies notwithstanding any law or statute existing or hereafter enacted to the contrary with respect to the replacement, payment, redemption, conversion or repurchase of negotiable instruments or
other securities without their surrender. 
 Section 2.07. Temporary Notes. Pending the preparation of Physical Notes,
the Company may execute and the Trustee or an authenticating agent appointed by the Trustee shall, upon receipt of a Company Order, authenticate and deliver temporary Notes (printed or lithographed). Temporary Notes shall be issuable in any
authorized denomination, and 

  
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substantially in the form of the Physical Notes but with such omissions, insertions and variations as may be appropriate for temporary Notes, all as may be determined by the Company. Every such
temporary Note shall be executed by the Company and authenticated by the Trustee or such authenticating agent upon the same conditions and in substantially the same manner, and with the same effect, as the Physical Notes. Without unreasonable delay,
the Company shall execute and deliver to the Trustee or such authenticating agent Physical Notes (other than any Global Note) and thereupon any or all temporary Notes (other than any Global Note) may be surrendered in exchange therefor, at each
office or agency maintained by the Company pursuant to Section 4.02 and the Trustee or such authenticating agent shall authenticate and deliver in exchange for such temporary Notes an equal aggregate principal amount of Physical Notes. Such
exchange shall be made by the Company at its own expense and without any charge therefor. Until so exchanged, the temporary Notes shall in all respects be entitled to the same benefits and subject to the same limitations under this Indenture as
Physical Notes authenticated and delivered hereunder. 
 Section 2.08. Cancellation of Notes Paid, Converted, Etc. The
Company shall cause all Notes surrendered for the purpose of payment, redemption, repurchase (including as described in Section 2.10, but excluding Notes repurchased pursuant to cash-settled swaps or other cash-settled derivatives),
registration of transfer or exchange or conversion, if surrendered to any Person that the Company controls other than the Trustee (including any of the Company’s agents, Subsidiaries or Affiliates), to be surrendered to the Trustee for
cancellation, and such Notes shall no longer be considered “Outstanding” upon their payment, redemption, repurchase, registration of transfer or exchange or conversion, as applicable. All Notes delivered to the Trustee shall be canceled
promptly by it, and, except for Notes surrendered for registration of transfer or exchange, no Notes shall be authenticated in exchange for any Notes cancelled except as provided in this Indenture. 

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

Section 2.10. Additional Notes; Repurchases. The Company may, without the consent of, or notice to, the Holders and
notwithstanding Section 2.01, reopen this Indenture and issue additional Notes under this Indenture with the same terms as the Notes initially issued hereunder (other than differences in the issue date, issue price and interest accrued prior to
the issue date of such additional Notes) in an unlimited aggregate principal amount; provided that if any such additional Notes are not fungible with the Notes initially issued hereunder for U.S. federal income tax purposes, such additional
Notes shall have a separate CUSIP number. The Notes initially issued hereunder and any additional Notes under this Indenture shall rank equally and ratably and shall be treated as a single series for all purposes under the Indenture. Prior to the
issuance of any such additional Notes, the Company shall deliver to the Trustee a Company 

  
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Order, an Officer’s Certificate and an Opinion of Counsel, such Officer’s Certificate and Opinion of Counsel to cover such matters, in addition to those required by Section 17.05,
as the Trustee shall reasonably request. In addition, the Company may, to the extent permitted by law, and directly or indirectly (regardless of whether such Notes are surrendered to the Company), repurchase Notes in the open market or otherwise,
whether by the Company or its Subsidiaries or through a private or public tender or exchange offer or through counterparties to private agreements, including by cash-settled swaps or other cash-settled derivatives, in each case without prior notice
to the Holders. The Company shall cause any Notes so repurchased (other than Notes pursuant to cash-settled swaps or other cash-settled derivatives) to be surrendered to the Trustee for cancellation in accordance with Section 2.08 and such
Notes will no longer be considered Outstanding under this Indenture upon their repurchase. 
 Section 2.11. Trustee Not Responsible for
Securities Laws. Notwithstanding anything herein to the contrary, neither the Trustee nor the Securities Registrar shall be responsible for ascertaining whether any transfer complies with the registration provisions of or exemptions from the
Securities Act, applicable state securities laws or other applicable laws. 
 ARTICLE 3 

SATISFACTION AND DISCHARGE 

Section 3.01. Satisfaction and Discharge. This Indenture and the Notes shall upon request of the Company contained in an
Officer’s Certificate cease to be of further effect, and the Trustee, at the expense of the Company, shall execute such instruments reasonably requested by the Company acknowledging satisfaction and discharge of this Indenture and the Notes,
when (i) all Notes theretofore authenticated and delivered (other than (x) Notes which have been destroyed, lost or stolen and which have been replaced or paid as provided in Section 2.06 and (y) Notes for whose payment has
theretofore been deposited in trust or segregated and held in trust by the Company and thereafter repaid to the Company or discharged from such trust, as provided in Section 4.03(d)) have been delivered to the Trustee for cancellation; or
(ii) after the Notes have become due and payable, whether on the Maturity Date, any Fundamental Change Repurchase Date or Redemption Date, upon conversion or otherwise, the Company has deposited with the Trustee cash and/or has delivered to
Holders shares of Common Stock or a combination thereof, as applicable, solely to satisfy the Company’s Conversion Obligation, sufficient to pay all of the Outstanding Notes and all other sums due and payable under this Indenture by the
Company; and (iii) the Company has delivered to the Trustee an Officer’s Certificate and an Opinion of Counsel, each stating that all conditions precedent herein provided for relating to the satisfaction and discharge of this Indenture
have been complied with. Notwithstanding the satisfaction and discharge of this Indenture, the obligations of the Company to the Trustee under Section 7.06 shall survive. 

ARTICLE 4 

PARTICULAR COVENANTS OF THE COMPANY 

Section 4.01. Payment of Principal and Interest. The Company covenants and agrees that it will cause to be paid the
principal (including the Fundamental Change Repurchase Price and the Redemption Price, if applicable) of, and accrued and unpaid interest on, each of the Notes at the places, at the respective times and in the manner provided herein and in the
Notes. 
 Section 4.02. Paying Agent and Conversion Agent. The office or agency where the Notes may be surrendered for
registration of transfer or exchange or for presentation for payment or repurchase (“Paying Agent”) and Security Registrar for the Notes shall be located in the 

  
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continental United States of America and shall initially be at the Corporate Trust Office of the Trustee. The Company will also maintain an office or agency (“Conversion Agent”)
in the continental United States of America where the Notes may be surrendered for conversion and where notices and demands in respect of the Notes and this Indenture may be made. The Company will give prompt written notice to the Trustee of the
location, and any change in the location, of such offices or agencies. If at any time the Company shall fail to maintain any such required office or agency or shall fail to furnish the Trustee with the address thereof, such presentations,
surrenders, notices and demands may be made at the Corporate Trust Office or another office or agency of the Trustee; provided, however, that the Trustee shall not be considered an agent of the Company for service of legal process. 

The Company may also from time to time designate as a Paying Agent one or more other 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; provided that no such designation or rescission shall in any manner relieve the Company of its obligation to maintain an office or agency in the
continental United States of America for such purposes. The Company will give prompt written notice to the Trustee of any such designation or rescission and of any change in the location of any such other office or agency. The terms “Paying
Agent” and “Conversion Agent” include any such additional or other offices or agencies, as applicable; provided that for the purposes of Article 15 of this Indenture, the Paying Agent may be any agent, depositary, tender
agent, paying agent or other agent appointed by the Company to accomplish the purposes set forth therein. 
 The Company hereby initially
designates the Trustee as the Paying Agent, Security Registrar, Custodian and Conversion Agent and the Corporate Trust Office as the office or agency where Notes may be surrendered for registration of transfer or exchange or for presentation for
payment or repurchase (if applicable) or for conversion and where notices in respect of the Notes and this Indenture may be made; provided, that the Corporate Trust Office shall not be a place for service of legal process on the Company. 

Section 4.03. Appointments to Fill Vacancies in Trustee’s Office. The Company, whenever necessary to
avoid or fill a vacancy in the office of Trustee, will appoint, in the manner provided in Section 7.09, a Trustee, so that there shall at all times be a Trustee hereunder. 

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

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

(ii) that it will give the Trustee prompt written notice of any failure by the Company to make any payment of the principal
(including the Fundamental Change 

  
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Repurchase Price or the Redemption Price, if applicable) of, and accrued and unpaid interest on, the Notes when the same shall be due and payable; and 

(iii) that at any time during the continuance of an Event of Default, upon request of the Trustee, it will forthwith pay to the
Trustee all sums so held in trust; 
 provided, that a Paying Agent appointed as contemplated under Section 15.02(f) shall not be required to
deliver any such instrument. 
 The Company shall, on or before each due date of the principal (including the Fundamental Change Repurchase
Price and Redemption Price, if applicable) of, or accrued and unpaid interest on, the Notes, deposit with the Paying Agent a sum sufficient to pay such principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable)
or accrued and unpaid interest, and (unless such Paying Agent is the Trustee) the Company will promptly notify the Trustee in writing of any failure to take such action; provided that if such deposit is made on the due date, such deposit must
be received by the Paying Agent by 11:00 a.m., New York City time, on such date. 
 (b) If the Company shall act as its own Paying Agent, it
will, on or before each due date of the principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable) of, and accrued and unpaid interest on, the Notes, set aside, segregate and hold in trust for the benefit of
the Holders of the Notes a sum sufficient to pay such principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable) and accrued and unpaid interest so becoming due and will promptly notify the Trustee in writing
of any failure to take such action and of any failure by the Company to make any payment of the principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable) of, or accrued and unpaid interest on, the Notes when
the same shall become due and payable. 
 (c) Anything in this Section 4.04 to the contrary notwithstanding, the Company may, at any
time, for the purpose of obtaining a satisfaction and discharge of this Indenture, or for any other reason, pay, cause to be paid or deliver to the Trustee all sums or amounts held in trust by the Company or any Paying Agent hereunder as required by
this Section 4.04, such sums or amounts to be held by the Trustee upon the trusts herein contained and upon such payment or delivery by the Company or any Paying Agent to the Trustee, the Company or such Paying Agent shall be released from all
further liability but only with respect to such sums or amounts. Upon the occurrence of any event specified in Section 6.01(h) or Section 6.01(i), the Trustee shall automatically become the Paying
Agent. 
 (d) Subject to any unclaimed property laws, any money and shares of Common Stock deposited with the Trustee, Conversion Agent or
any Paying Agent, or then held by the Company, in trust for the payment of the principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable) of, accrued and unpaid interest on and the consideration due upon
conversion of any Note and remaining unclaimed for two years after such principal (including the Fundamental Change Repurchase Price and Redemption Price, if applicable), interest or consideration due upon conversion has become due and payable shall
be paid to the Company on request of the Company contained in an Officer’s Certificate, or (if then 

  
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held by the Company) shall be discharged from such trust; and the Holder of such Note shall thereafter, as an unsecured general creditor, look only to the Company for payment thereof, and all
liability of the Trustee, Conversion Agent or such Paying Agent with respect to such trust money and shares of Common Stock, and all liability of the Company as trustee thereof, shall thereupon cease. 

Section 4.05. Existence. Subject to Article 11, the Company shall do or cause to be done all things necessary to preserve
and keep in full force and effect its corporate existence. 
 Section 4.06. Rule 144A Information Requirement and Annual
Reports. (a) At any time the Company is not subject to Section 13 or 15(d) of the Exchange Act, the Company shall, so long as any of the Notes or any shares of Common Stock issuable upon conversion thereof shall, at such time,
constitute “restricted securities” within the meaning of Rule 144(a)(3) under the Securities Act, promptly provide to the Trustee and shall, upon written request, provide to any Holder, beneficial owner or prospective purchaser of such
Notes or any shares of Common Stock issuable upon conversion of such Notes, the information required to be delivered pursuant to Rule 144A(d)(4) under the Securities Act to facilitate the resale of such Notes or shares of Common Stock pursuant to
Rule 144A. 
 (b) The Company shall file with the Trustee, within 15 days after the same are required to be filed with the Commission (giving
effect to any grace period provided by Rule 12b-25 under the Exchange Act or any successor rule), copies of any documents or reports that the Company is required to file with the Commission pursuant to
Section 13 or 15(d) of the Exchange Act (excluding any such information, documents or reports, or portions thereof, subject to confidential treatment and any correspondence with the Commission). Any such document or report that the Company
files with the Commission via the Commission’s EDGAR system (or any successor thereto) shall be deemed to be filed with the Trustee for purposes of this Section 4.05(a) at the time such documents are filed via the EDGAR system (or any
successor thereto), it being understood that the Trustee shall not be responsible for determining whether such filings have been made. The Trustee shall have no duty to review or analyze reports delivered to it pursuant to this covenant. 

(c) Delivery of the reports, information and documents described in subsection (b) above to the Trustee is for informational purposes
only, and the information and the Trustee’s receipt of such shall not constitute constructive notice of any information contained therein or determinable from information contained therein, including the Company’s compliance with any of
its covenants hereunder (as to which the Trustee is entitled to conclusively rely on an Officer’s Certificate). 
 (d) If, at any time
during the six-month period beginning on, and including, the date that is six months after the last date of original issuance of the Notes, the Company fails to timely file any document or report that it is
required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after giving effect to all applicable grace periods thereunder and other than reports on Form 8-K),
or the Notes are not otherwise freely tradable pursuant to Rule 144 by Holders other than the Company’s Affiliates or Holders that were the Company’s Affiliates at any time during the three months immediately preceding (as a


  
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result of restrictions pursuant to U.S. securities laws or the terms of this Indenture or the Notes), the Company shall pay Additional Interest on the Notes. Such Additional Interest shall accrue
on the Notes at the rate of (i) 0.25% per annum of the principal amount of the Notes Outstanding for each day during the first 90 days of such period for which the Company’s failure to file has occurred and is continuing or the Notes are not
otherwise freely tradable pursuant to Rule 144 by Holders other than the Company’s Affiliates (or Holders that were the Company’s Affiliates at any time during the three months immediately preceding) and (ii) 0.50% per annum of the
principal amount of the Notes Outstanding for each day after the 90th day of such period for which the Company’s failure to file has occurred and is continuing or the Notes are not otherwise freely tradable pursuant to Rule 144 by Holders other
than the Company’s Affiliates (or Holders that were the Company’s Affiliates at any time during the three months immediately preceding). As used in this Section 4.06(d), documents or reports that the Company is required to
“file” with the Commission pursuant to Section 13 or 15(d) of the Exchange Act does not include documents or reports that the Company furnishes to the Commission pursuant to Section 13 or 15(d) of the Exchange Act. 

(e) If, and for so long as, the Restrictive Legend on the Notes specified in Section 2.05(c) has not been removed, the Notes are assigned
a restricted CUSIP or the Notes are not otherwise freely tradable pursuant to Rule 144 by Holders other than the Company’s Affiliates or Holders that were the Company’s Affiliates at any time during the three months immediately preceding
(without restrictions pursuant to U.S. securities laws or the terms of this Indenture or the Notes) as of the 380th day after the last date of original issuance of the Notes (such 380th day, the
“legend removal deadline date”), the Company shall pay Additional Interest on the Notes at a rate equal to (i) 0.25% per annum of the principal amount of Notes Outstanding for each day during the period beginning on, and including,
the legend removal deadline date and ending on the earlier of (x) the 90th day immediately following the legend removal deadline date and (y) the date on which the Restrictive Legend has been removed from the Notes in accordance with
Section 2.05(c), the Notes are assigned an unrestricted CUSIP and the Notes are freely tradable pursuant to Rule 144 by Holders other than the Company’s Affiliates (or Holders that were the Company’s Affiliates at any time during the
three months immediately preceding) and (ii) 0.50% per annum of the principal amount of Notes Outstanding for each day during the period beginning on, and including, the 91st day immediately following the legend removal deadline date and ending on
the date on which the Restrictive Legend has been removed from the Notes in accordance with Section 2.05(c), the Notes are assigned an unrestricted CUSIP and the Notes are freely tradable pursuant to Rule 144 by Holders other than the
Company’s Affiliates (or Holders that were the Company’s Affiliates at any time during the three months immediately preceding). The Company shall send written notice to the Holder of each Note and the Trustee of the commencement and
termination of any period on which Additional Interest accrues on such Note. The Restrictive Legend on the Notes shall be deemed removed pursuant to the terms of this Indenture as provided in Section 2.05(c), and, at such time, the Notes will,
pursuant to, and subject to the provisions of, such Section, be deemed assigned an unrestricted CUSIP number. However, for the avoidance of doubt, Global Notes will continue to bear Additional Interest pursuant to this paragraph until such time as
they are identified by an unrestricted CUSIP in the facilities of the Depositary therefor, as a result of completion of such Depositary’s mandatory exchange process or otherwise. 

  
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 (f) Additional Interest will be payable in arrears on each Interest Payment Date following
accrual in the same manner as regular interest on the Notes. 
 (g) The Additional Interest that is payable in accordance with
Section 4.06(d) or Section 4.06(e) shall be in addition to, and not in lieu of, any Additional Interest that may be payable as a result of the Company’s election pursuant to Section 6.03. However, in no event shall any Additional
Interest that may accrue as a result of the Company’s failure to timely file any document or report that it is required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after giving effect to
all applicable grace periods thereunder and other than reports on Form 8-K), as described in Section 4.06(d), together with any Additional Interest payable at the Company’s election as the remedy for
an Event of Default relating to the Company’s failure to comply with its reporting obligations as set forth Section 4.06(b), accrue at a rate in excess of 0.50% per annum pursuant to this Indenture, regardless of the number of events or
circumstances giving rise to the requirement to pay such Additional Interest. 
 (h) If Additional Interest is payable by the Company
pursuant to Section 4.06(d) or Section 4.06(e), the Company shall deliver to the Trustee an Officer’s Certificate to that effect stating (i) the amount of such Additional Interest that is payable and (ii) the date on which
such Additional Interest is payable. Unless and until a Responsible Officer of the Trustee receives at the Corporate Trust Office such a certificate, the Trustee may assume without inquiry that no such Additional Interest is payable and the Trustee
shall not have any duty to verify the Company’s calculation of Additional Interest If the Company has paid Additional Interest directly to the Persons entitled to it, the Company shall deliver to the Trustee an Officer’s Certificate
setting forth the particulars of such payment. 
 Section 4.07. Stay, Extension and Usury Laws. The Company covenants (to
the extent that it may lawfully do so) that it shall not at any time insist upon, plead, or in any manner whatsoever claim or take the benefit or advantage of, any stay, extension or usury law or other law that would prohibit or forgive the Company
from paying all or any portion of the principal of or interest on the Notes as contemplated herein, wherever enacted, now or at any time hereafter in force, or that may affect the covenants or the performance of this Indenture; and the Company (to
the extent it may lawfully do so) hereby expressly waives all benefit or advantage of any such law, and covenants that it will not, by resort to any such law, hinder, delay or impede the execution of any power herein granted to the Trustee, but will
suffer and permit the execution of every such power as though no such law had been enacted. 
 Section 4.08. Compliance Certificate;
Statements as to Defaults. The Company shall deliver to the Trustee within 120 days after the end of each fiscal year of the Company (beginning with the fiscal year ending on December 31, 2022) an Officer’s Certificate signed by
the principal executive, financial or accounting officer of the Company stating whether the signers thereof have knowledge of any failure by the Company to comply with all conditions and covenants then required to be performed under this Indenture
and, if so, specifying each such failure and the nature thereof. 

  
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 In addition, the Company shall deliver to the Trustee, as soon as possible, and in any event
within 30 days after an Officer of the Company obtains knowledge of the occurrence of any Event of Default or Default, an Officer’s Certificate setting forth the details of such Event of Default or Default, its status and the action that the
Company is taking or proposing to take in respect thereof; provided that the Company shall not be required to deliver such an Officer’s Certificate if such Event of Default or Default has been cured within the applicable grace period (if any)
provided in this Indenture. 
 Section 4.09. Further Instruments and Acts. Upon request of the Trustee, Company will
execute and deliver such further instruments and do such further acts as may be reasonably necessary or proper to carry out more effectively the purposes of this Indenture. 

ARTICLE 5 
 LISTS
OF HOLDERS AND REPORTS BY THE COMPANY AND THE TRUSTEE 

Section 5.01. Lists of Holders. The Company covenants and agrees that it will furnish or cause to be furnished to the
Trustee, semi-annually, no later than June 1 or December 1 in each year beginning with December 1, 2022, and at such other times as the Trustee may request in writing, within 15 days after receipt by the Company of any such request
(or such lesser time as the Trustee may reasonably request in order to enable it to timely provide any notice to be provided by it hereunder), a list in such form as the Trustee may reasonably require of the names and addresses of the Holders as of
a date not more than 15 days (or such other date as the Trustee may reasonably request in order to so provide any such notices) prior to the time such information is furnished, except that no such list need be furnished so long as the Trustee is
acting as Security Registrar. 
 Section 5.02. Preservation and Disclosure of Lists. The Trustee shall preserve, in as
current a form as is reasonably practicable, all information as to the names and addresses of the Holders contained in the most recent list furnished to it as provided in Section 5.01 or maintained by the Trustee in its capacity as Security
Registrar, if so acting. The Trustee may destroy any list furnished to it as provided in Section 5.01 upon receipt of a new list so furnished. 

ARTICLE 6 
 DEFAULTS
AND REMEDIES 
 Section 6.01. Events of Default. Each of the following events shall be an
“Event of Default” with respect to the Notes: 
 (a) default in any payment of interest on any Note when due and payable,
and the default continues for a period of 30 days; 
 (b) default in the payment of principal of any Note when due and payable on the
Maturity Date, on the Redemption Date, upon any required repurchase, upon declaration of acceleration or otherwise; 

  
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 (c) failure by the Company to comply with its obligation to convert the Notes in accordance
with this Indenture upon exercise of a Holder’s conversion right, and such failure continues for five Business Days; 
 (d) failure by
the Company to issue (i) a Fundamental Change Company Notice in accordance with Section 15.02(c), (ii) a notice of the Effective Date of a Make-Whole Fundamental Change in accordance with Section 14.03(b) or (iii) notice of a
specified distribution or specified Corporate Event in accordance with Section 14.01(b)(ii) or Section 14.01(b)(iii), in each case, when due and (in the case of clause (i) and (ii) only) such failure continues for five Business Days);

 (e) failure by the Company to comply with its obligations under Article 11; 

(f) failure by the Company for 60 days, after the Company has received written notice from the Trustee or the Holders of at least 25% in
principal amount of the Notes then Outstanding, to comply with any of its other agreements contained in the Notes or this Indenture; 
 (g)
default by the Company or any Significant Subsidiary of the Company 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 $50,000,000 (or its foreign currency equivalent) in the aggregate of the Company and/or of any such Significant Subsidiary, whether such indebtedness now exists or shall hereafter be created (i) resulting in such indebtedness
becoming or being declared due and payable prior to its stated maturity or (ii) constituting a failure to pay the principal of any such indebtedness when due and payable (after the expiration of all applicable grace periods) at its stated
maturity, upon required repurchase, upon declaration of acceleration or otherwise, and such acceleration shall not have been rescinded or annulled or such failure to pay or default shall not have been cured or waived, or such indebtedness shall not
have been paid or discharged, as the case may be, within 30 days after written notice to the Company by the Trustee or to the Company and the Trustee by the Holders of at least 25% in principal amount of the Notes then Outstanding has been received;

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

(i) an involuntary case or other proceeding shall be commenced against the Company or any Significant Subsidiary seeking liquidation,
reorganization or other relief with respect to the Company or such Significant Subsidiary or its debts under any bankruptcy, insolvency or other similar law now or hereafter in effect or seeking the appointment of a trustee, receiver, liquidator,
custodian or other similar official of the Company or such Significant Subsidiary or 

  
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any substantial part of its property, and such involuntary case or other proceeding shall remain undismissed and unstayed for a period of 60 consecutive days; or 

(j) a final judgment or judgments for the payment of $50.0 million (or its foreign currency equivalent) or more (excluding any amounts
covered by insurance) in the aggregate rendered against the Company or any of the Company’s Significant Subsidiaries, which judgment is not discharged, bonded, paid, waived 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 6.02. 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 6.01(h) or Section 6.01(i) with respect to the Company), unless the principal of all of the Notes shall have already become due
and payable, either the Trustee or the Holders of at least 25% in aggregate principal amount of the Notes then Outstanding determined in accordance with Section 8.04, by notice in writing to the Company (and to the Trustee if given by Holders),
may declare 100% of the principal of, and accrued and unpaid interest, if any, on, all the Notes to be due and payable immediately, and upon any such declaration the same shall become and shall automatically be immediately due and payable, anything
contained in this Indenture or in the Notes to the contrary notwithstanding. If an Event of Default specified in Section 6.01(h) or Section 6.01(i) with respect to the Company occurs and is continuing, 100% of the principal of, and accrued
and unpaid interest, if any, on, all Notes shall become and shall automatically be immediately due and payable. 
 The immediately preceding paragraph,
however, is subject to the conditions that if, at any time after the principal of the Notes shall have been so declared due and payable, and before any judgment or decree for the payment of the monies due shall have been obtained or entered as
hereinafter provided, the Company shall pay or shall deposit with the Trustee a sum sufficient to pay installments of accrued and unpaid interest upon all Notes and the principal of any and all Notes that shall have become due otherwise than by
acceleration (with interest on overdue installments of accrued and unpaid interest to the extent that payment of such interest is enforceable under applicable law, and on such principal at the rate borne by the Notes at such time) and amounts due to
the Trustee pursuant to Section 7.06, and if (1) rescission would not conflict with any judgment or decree of a court of competent jurisdiction and (2) any and all existing Events of Default under this Indenture, other than the
nonpayment of the principal of and accrued and unpaid interest, if any, on Notes that shall have become due solely by such acceleration, shall have been cured or waived pursuant to Section 6.09, then and in every such case (except as provided
in the immediately succeeding sentence) the Holders of a majority in aggregate principal amount of the Notes then Outstanding, by written notice to the Company and to the Trustee, may waive all Defaults or Events of Default with respect to the Notes
and rescind and annul such declaration and its consequences and such Default shall cease to exist, and any Event of Default arising therefrom shall be deemed to have been cured for every purpose of this Indenture; but no such waiver or rescission
and annulment shall extend to or shall affect any 

  
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subsequent Default or Event of Default, or shall impair any right consequent thereon. Notwithstanding anything to the contrary herein, no such waiver or rescission and annulment shall extend to
or shall affect any Default or Event of Default resulting from (i) the nonpayment of the principal (including the Fundamental Change Repurchase Price and the Redemption Price, if applicable) of, or accrued and unpaid interest on, any Notes,
(ii) a failure to repurchase any Notes when required or (iii) a failure to pay or deliver, as the case may be, the consideration due upon conversion of the Notes. 

Section 6.03. Additional Interest. Notwithstanding anything in this Indenture or in the Notes to the contrary, to the extent the
Company elects, the sole remedy for an Event of Default relating to the Company’s failure to comply with its obligations as set forth in Section 4.05(a) (the obligations described in clauses (i) and (ii), the “Reporting
Obligations”) shall consist exclusively of the right to receive Additional Interest on the Notes at a rate equal to (x) 0.25% per annum of the principal amount of the Notes Outstanding for each day during the period beginning on, and
including, the date on which such Event of Default first occurs and ending on the earlier of (A) the date on which such Event of Default is cured or validly waived in accordance herewith and (B) the 135th day immediately following, and
including, the date on which such Event of Default first occurs and (y) if such Event of Default has not been cured or validly waived prior to the 136th day immediately following, and including, the date on which such Event of Default first
occurs, 0.50% per annum of the principal amount of the Notes Outstanding for each day during the period beginning on, and including, the 136th day immediately following, and including, the date on which such Event of Default first occurs and ending
on the earlier of (A) the date on which such Event of Default is cured or validly waived in accordance herewith and (B) the 270th day immediately following, and including, the date on which such Event of Default first occurs. 

If the Company so elects to pay Additional Interest, any such Additional Interest shall be payable in the same manner and on the same dates as
the stated interest payable on the Notes and will accrue on all Outstanding Notes from, and including, the date on which such Event of Default first occurs to, and including, the 270th day thereafter (or such earlier date on which such Event of
Default is cured or validly waived in accordance herewith). On the 271st day after such Event of Default (if the Event of Default is not cured or waived in accordance herewith prior to such 271st day), such Additional Interest will cease to accrue
and the Notes shall be immediately subject to acceleration as provided in Section 6.02. In the event the Company does not elect to pay Additional Interest following an Event of Default relating to the Reporting Obligations in accordance with
this Section 6.03 or the Company elected to make such payment but does not pay the Additional Interest when due, the Notes shall be immediately subject to acceleration as provided in Section 6.02. 

In order to elect to pay Additional Interest as the sole remedy during the first 270 days after the occurrence of any Event of Default
relating to the failure by the Company to comply with the Reporting Obligations, in accordance with this Section 6.03, the Company must notify all Holders of the Notes, the Trustee and the Paying Agent in writing of such election prior to the
beginning of such 270-day period. Upon the failure to timely give such notice, the Notes shall be immediately subject to acceleration as provided in Section 6.02. The Trustee shall not at any time be
under any duty or responsibility to any Holder of Notes to determine the Additional 

  
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Interest, or with respect to the nature, extent, or calculation of the amount of Additional Interest owed, or with respect to the method employed in such calculation of the Additional Interest.

 In no event shall Additional Interest payable at the Company’s election as the remedy for an Event of Default relating to the
Company’s failure to comply with its reporting obligations as set forth in Section 4.06(b), together with any Additional Interest that may accrue as a result of the Company’s failure to timely file any document or report that it is
required to file with the Commission pursuant to Section 13 or 15(d) of the Exchange Act, as applicable (after giving effect to all applicable grace periods thereunder and other than reports on Form 8-K),
pursuant to Section 4.06(d), accrue at a rate in excess of 0.50% per annum pursuant to this Indenture, regardless of the number of events or circumstances giving rise to the requirement to pay such Additional Interest. The Trustee shall have no
duty to calculate or verify the calculation of Additional Interest. 
 Section 6.04. Payments of Notes on Default; Suit
Therefor. If an Event of Default described in clauses (a) or (b) of Section 6.01 shall have occurred, the Company shall, upon demand of the Trustee or the requisite Holders as set forth in Section 6.01, pay to the Trustee,
for the benefit of the Holders of the Notes, the whole amount then due and payable on the Notes for principal and interest, if any, with interest on any overdue principal and interest, if any, at the rate borne by the Notes at such time, and, in
addition thereto, such further amount as shall be sufficient to cover any amounts due to the Trustee under Section 7.06. If the Company shall fail to pay such amounts forthwith upon such demand, the Trustee, in its own name and as trustee of an
express trust, may institute a judicial proceeding for the collection of the sums so due and unpaid, may prosecute such proceeding to judgment or final decree and may enforce the same against the Company or any other obligor upon the Notes and
collect the moneys adjudged or decreed to be payable in the manner provided by law out of the property of the Company or any other obligor upon the Notes, wherever situated. 

In the event there shall be pending proceedings for the bankruptcy or for the reorganization of the Company or any other obligor on the Notes
under Title 11 of the United States Code, or any other applicable law, or in case a receiver, assignee or trustee in bankruptcy or reorganization, liquidator, sequestrator or similar official shall have been appointed for or taken possession of the
Company or such other obligor, the property of the Company or such other obligor, or in the event of any other judicial proceedings relative to the Company or such other obligor upon the Notes, or to the creditors or property of the Company or such
other obligor, the Trustee, irrespective of whether the principal of the Notes shall then be due and payable as therein expressed or by declaration or otherwise and irrespective of whether the Trustee shall have made any demand pursuant to the
provisions of this Section 6.04, shall be entitled and empowered, by intervention in such proceedings or otherwise, to file and prove a claim or claims for the whole amount of principal and accrued and unpaid interest, if any, in respect of the
Notes, and, in case of any judicial proceedings, to file such proofs of claim and other papers or documents and to take such other actions as it may deem necessary or advisable in order to have the claims of the Trustee (including any claim for the
reasonable compensation, expenses and disbursements of the Trustee, its agents and counsel) and of the Holders allowed in such judicial proceedings relative to the Company or any other obligor on the Notes, its or their creditors, or its or their
property, and to collect and receive any monies or other property payable 

  
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or deliverable on any such claims, and to distribute the same after the deduction of any amounts due to the Trustee under Section 7.06; and any receiver, assignee or trustee in bankruptcy or
reorganization, liquidator, custodian or similar official is hereby authorized by each of the Holders to make such payments to the Trustee, as administrative expenses, and, in the event that the Trustee shall consent to the making of such payments
directly to the Holders, to pay to the Trustee any amount due it for reasonable compensation, expenses and disbursements, including agents and counsel fees, and including any other amounts due to the Trustee under Section 7.06, incurred by it
up to the date of such distribution. To the extent that such payment of reasonable compensation, expenses and disbursements out of the estate in any such proceedings shall be denied for any reason, payment of the same shall be secured by a lien on,
and shall be paid out of, any and all distributions, dividends, monies, securities and other property that the Holders of the Notes may be entitled to receive in such proceedings, whether in liquidation or under any plan of reorganization or
arrangement or otherwise. 
 Nothing herein contained shall be deemed to authorize the Trustee to authorize or consent to or accept or adopt
on behalf of any Holder any plan of reorganization, arrangement, adjustment or composition affecting such Holder or the rights of any Holder thereof, or to authorize the Trustee to vote in respect of the claim of any Holder in any such proceeding.

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

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

In case the Trustee shall have proceeded to enforce any right under this Indenture and such proceedings shall have been discontinued or
abandoned because of any waiver pursuant to Section 6.09 or any rescission and annulment pursuant to Section 6.02 or for any other reason or shall have been determined adversely to the Trustee, then and in every such case the Company, the
Holders and the Trustee shall, subject to any determination in such proceeding, be restored respectively to their several positions and rights hereunder, and all rights, remedies and powers of the Company, the Holders and the Trustee shall continue
as though no such proceeding had been instituted. 
 Section 6.05. Application of Monies Collected by Trustee. Any monies
collected by the Trustee pursuant to this Article 6 with respect to the Notes shall be applied in the following order, at the date or dates fixed by the Trustee for the distribution of such monies, upon presentation of the several Notes, and
stamping thereon the payment, if only partially paid, and upon surrender thereof, if fully paid: 

  
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 First, to the payment of all amounts due the Trustee and its agents under this
Indenture; 
 Second, in case the principal of the Outstanding Notes shall not have become due and be unpaid, to the payment of
interest on, and any cash due upon conversion of, the Notes in default in the order of the date due of the payments of such interest and cash due upon conversion, as the case may be, with interest (to the extent that such interest has been collected
by the Trustee) upon such overdue payments at the rate borne by the Notes at such time, such payments to be made ratably to the Persons entitled thereto; 

Third, in case the principal of the Outstanding Notes shall have become due, by declaration or otherwise, and be unpaid to the payment
of the whole amount (including, if applicable, the payment of the Fundamental Change Repurchase Price, the Redemption Price and any cash due upon conversion) then owing and unpaid upon the Notes for principal and interest, if any, with interest on
the overdue principal and, to the extent that such interest has been collected by the Trustee, upon overdue installments of interest at the rate borne by the Notes at such time, and in case such monies shall be insufficient to pay in full the whole
amounts so due and unpaid upon the Notes, then to the payment of such principal (including, if applicable, the Fundamental Change Repurchase Price, the Redemption Price and the cash due upon conversion) and interest without preference or priority of
principal over interest, or of interest over principal or of any installment of interest over any other installment of interest, or of any Note over any other Note, ratably to the aggregate of such principal (including, if applicable, the
Fundamental Change Repurchase Price, the Redemption Price and any cash due upon conversion) and accrued and unpaid interest; and 

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

Section 6.06. Proceedings by Holders. Except to enforce the right to receive payment of principal (including, if
applicable, the Fundamental Change Repurchase Price and the Redemption Price) or interest when due, or the right to receive payment or delivery of the consideration due upon conversion, no Holder of any Note shall have any right by virtue of or by
availing of any provision of this Indenture to institute any suit, action or proceeding in equity or at law upon or under or with respect to this Indenture, or for the appointment of a receiver, trustee, liquidator, custodian or other similar
official, or for any other remedy hereunder, unless: 
 (a) such Holder previously shall have given to the Trustee written notice of an Event
of Default and of the continuance thereof, as herein provided; 
 (b) Holders of at least 25% in aggregate principal amount of the Notes then
Outstanding shall have made written request upon the Trustee to institute such action, suit or proceeding in its own name as Trustee hereunder; 

(c) such Holders shall have offered to the Trustee such security or indemnity satisfactory to it against any loss, liability or expense to be
incurred therein or thereby; 
 (d) the Trustee for 60 days after its receipt of such notice, request and offer of such security or
indemnity, shall have neglected or refused to institute any such action, suit or proceeding; and 

  
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 (e) no direction that, in the opinion of the Trustee, is inconsistent with such written
request shall have been given to the Trustee by the Holders of a majority of the aggregate principal amount of the Notes then Outstanding within such 60-day period pursuant to Section 6.09, 

it being understood and intended, and being expressly covenanted by the taker and Holder of every Note with every other taker and Holder and the Trustee that
no one or more Holders shall have any right in any manner whatever by virtue of or by availing of any provision of this Indenture to affect, disturb or prejudice the rights of any other Holder (it being understood that the Trustee shall not have an
affirmative duty to ascertain whether or not any such direction is unduly prejudicial to any other Holder), or to obtain or seek to obtain priority over or preference to any other such Holder, or to enforce any right under this Indenture, except in
the manner herein provided and for the equal, ratable and common benefit of all Holders (except as otherwise provided herein). For the protection and enforcement of this Section 6.06, each and every Holder and the Trustee shall be entitled to
such relief as can be given either at law or in equity. 
 Notwithstanding any other provision of this Indenture and any provision of any
Note, each Holder of the Notes shall have the right to receive payment or delivery, as the case may be, of (x) the principal (including the Fundamental Change Repurchase Price and the Redemption Price, if applicable) of, (y) accrued and
unpaid interest, if any, on, and (z) the consideration due upon conversion of, such Note, on or after the respective due dates expressed or provided for in such Note or in this Indenture, or to institute suit for the enforcement of any such
payment or delivery on or after the applicable due date, as the case may be, and such right to receive such payment or delivery, as the case may be, on or after such respective dates, shall not be impaired or affected without the consent of such
Holder. 
 Section 6.07. Proceedings by Trustee. In case of an Event of Default, the Trustee may in its discretion
proceed to protect and enforce the rights vested in it by this Indenture by such appropriate judicial proceedings as are necessary to protect and enforce any of such rights, either by suit in equity or by action at law or by proceeding in bankruptcy
or otherwise, whether for the specific enforcement of any covenant or agreement contained in this Indenture or in aid of the exercise of any power granted in this Indenture, or to enforce any other legal or equitable right vested in the Trustee by
this Indenture or by law. 
 Section 6.08. Remedies Cumulative and Continuing. Except as provided in the last paragraph
of Section 2.06, all powers and remedies given by this Article 6 to the Trustee or to the Holders shall, to the extent permitted by law, be deemed cumulative and not exclusive of any thereof or of any other powers and remedies available to the
Trustee or the Holders of the Notes, by judicial proceedings or otherwise, to enforce the performance or observance of the covenants and agreements contained in this Indenture, and no delay or omission of the Trustee or of any Holder of any of the
Notes to exercise any right or power accruing upon any Default or Event of Default shall impair any such right or power, or shall be construed to be a waiver of any such Default or Event of Default or any acquiescence therein; and, subject to the
provisions of Section 6.06, every power and remedy given by this Article 6 or by law to the Trustee or to the Holders 

  
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may be exercised from time to time, and as often as shall be deemed expedient, by the Trustee or by the Holders. 

Section 6.09. Direction of Proceedings and Waiver of Defaults by Majority of Holders. The Holders of a majority of the
aggregate principal amount of the Notes at the time Outstanding determined in accordance with Section 8.04 shall have the right to direct the time, method and place of conducting any proceeding for any remedy available to the Trustee or
exercising any trust or power conferred on the Trustee with respect to the Notes; provided, however, that (a) such direction shall not be in conflict with any rule of law or with this Indenture, and (b) the Trustee may take
any other action deemed proper by the Trustee that is not inconsistent with such direction. The Trustee may refuse to follow any direction that it determines is unduly prejudicial to the rights of any other Holder or that would involve the Trustee
in personal liability (it being understood that the Trustee shall not have an affirmative duty to ascertain whether or not any such direction is unduly prejudicial to any other Holder). The Holders of a majority in aggregate principal amount of the
Notes at the time Outstanding determined in accordance with Section 8.04 may on behalf of the Holders of all of the Notes, by written notice to the Trustee and the Company, waive any past Default or Event of Default hereunder and its
consequences except (i) a default in the payment of accrued and unpaid interest, if any, on, or the principal (including any Redemption Price and Fundamental Change Repurchase Price) of, the Notes when due that has not been cured pursuant to
the provisions of Section 6.01, (ii) a failure by the Company to pay or deliver, as the case may be, the consideration due upon conversion of the Notes or (iii) a default in respect of a covenant or provision hereof which under Article 10
cannot be modified or amended without the consent of each Holder of an Outstanding Note affected. Upon any such waiver the Company, the Trustee and the Holders of the Notes shall be restored to their former positions and rights hereunder; but no
such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent thereon. Whenever any Default or Event of Default hereunder shall have been waived as permitted by this Section 6.09, said Default or
Event of Default shall for all purposes of the Notes and this Indenture be deemed to have been cured and to be not continuing; but no such waiver shall extend to any subsequent or other Default or Event of Default or impair any right consequent
thereon. 
 Section 6.10. Notice of Defaults. The Trustee shall, within 90 days after a Responsible Officer of the
Trustee obtains actual knowledge of a Default, deliver to all Holders as the names and addresses of such Holders appear upon the Security Register, notice of all Defaults actually known to the Trustee unless such Defaults shall have been cured or
waived before the giving of such notice; provided that, except in the case of a Default in the payment of the principal of (including the Fundamental Change Repurchase Price and the Redemption Price, if applicable), or accrued and unpaid
interest on, any of the Notes or a Default in the payment or delivery of the consideration due upon conversion, the Trustee shall be protected in withholding such notice if and so long as the Trustee in good faith determines that the withholding of
such notice is in the interests of the Holders. 
 Section 6.11. Undertaking to Pay Costs. All parties to this Indenture
agree, and each Holder of any Note by its acceptance thereof shall be deemed to have agreed, that any court may, in its discretion, require, in any suit for the enforcement of any right or remedy under this Indenture, or in any suit against the
Trustee for any action taken or omitted by it as Trustee, the 

  
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filing by any party litigant in such suit of an undertaking to pay the costs of such suit and that such court may in its discretion assess reasonable costs, including reasonable attorneys’
fees and expenses, against any party litigant in such suit, having due regard to the merits and good faith of the claims or defenses made by such party litigant; provided that the provisions of this Section 6.11 (to the extent permitted
by law) shall not apply to any suit instituted by the Trustee, to any suit instituted by any Holder, or group of Holders, holding in the aggregate more than 10% in principal amount of the Notes at the time Outstanding determined in accordance with
Section 8.04, or to any suit instituted by any Holder for the enforcement of the payment of the principal of or accrued and unpaid interest, if any, on any Note (including, but not limited to, the Fundamental Change Repurchase Price and
Redemption Price, if applicable) on or after the due date expressed or provided for in such Note or to any suit for the enforcement of the right to convert any Note, in accordance with the provisions of Article 14. 

ARTICLE 7 

CONCERNING THE TRUSTEE 

Section 7.01. Duties and Responsibilities of Trustee. The Trustee, prior to the occurrence of an Event of Default and after
the curing or waiver of all Events of Default that may have occurred, undertakes to perform such duties and only such duties as are specifically set forth in this Indenture. If an Event of Default has occurred and is continuing, the Trustee shall
exercise such of the rights and powers vested in it by this Indenture, and use the same degree of care and skill in its exercise, as a prudent person would exercise or use under the circumstances in the conduct of such person’s own affairs;
provided that the Trustee will be under no obligation to exercise any of the rights or powers under this Indenture at the request or direction of any of the Holders unless such Holders have offered, and, if requested, provided to the Trustee
indemnity or security satisfactory to Trustee against any cost, loss, liability or expense that might be incurred by it in compliance with such request or direction. 

No provision of this Indenture shall be construed to relieve the Trustee from liability for its own grossly negligent action, its own grossly
negligent failure to act or its own willful misconduct, except that: 
 (a) prior to the occurrence of an Event of Default and after the
curing or waiving of all Events of Default that may have occurred: 
 (i) the duties and obligations of the Trustee shall be
determined solely by the express provisions of this Indenture, and the Trustee shall not be liable except for the performance of such duties and obligations as are specifically set forth in this Indenture and no implied covenants or obligations
shall be read into this Indenture against the Trustee; and 
 (ii) in the absence of bad faith and willful misconduct on the
part of the Trustee, the Trustee may conclusively rely, as to the truth of the statements and the correctness of the opinions expressed therein, upon any certificates or opinions furnished to the Trustee and conforming to the requirements of this
Indenture; but, in the case of any such certificates or opinions that by any provisions hereof are specifically required to 

  
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be furnished to the Trustee, the Trustee shall be under a duty to examine the same to determine whether or not they conform to the requirements of this Indenture (but need not confirm or
investigate the accuracy of any mathematical calculations or other facts stated therein); 
 (b) the Trustee shall not be liable for any
action taken or any error of judgment made in good faith by a Responsible Officer or Officers of the Trustee, unless it shall be proved that the Trustee was grossly negligent in ascertaining the pertinent facts; 

(c) the Trustee shall not be liable with respect to any action taken or omitted to be taken by it in good faith in accordance with the
direction of the Holders of not less than a majority of the aggregate principal amount of the Notes at the time Outstanding determined as provided in Section 8.04 relating to the time, method and place of conducting any proceeding for any
remedy available to the Trustee, or exercising any trust or power conferred upon the Trustee, under this Indenture; 
 (d) whether or not
therein provided, every provision of this Indenture relating to the conduct or affecting the liability of, or affording protection to, the Trustee shall be subject to the provisions of this Article 7; 

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

(h) under no circumstances shall the Trustee be liable in its individual capacity for the obligations evidenced by the Notes; and 

(i) in the event that the Trustee is also acting as Custodian, Security Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or
transfer agent hereunder, the indemnities, the rights and protections afforded to the Trustee pursuant to this Article 7 shall also be afforded to such Custodian, Security Registrar, Paying Agent, Conversion Agent, Bid Solicitation Agent or transfer
agent. 

  
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 None of the provisions contained in this Indenture shall require the Trustee to expend or
risk its own funds or otherwise incur personal financial liability in the performance of any of its duties or in the exercise of any of its rights or powers. 

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

(a) The Trustee may conclusively rely and shall be fully protected in acting upon any resolution, certificate, statement, instrument, opinion,
report, notice, request, direction, consent, order, bond, note, coupon or other paper or document (whether in its original or facsimile form) believed by it in good faith to be genuine and to have been signed or presented by the proper party or
parties, not only as to due execution, validity and effectiveness, but also as to the truth and accuracy of any information contained therein. 

(b) Any request, direction, order or demand of the Company mentioned herein shall be sufficiently evidenced by an Officer’s Certificate
(unless other evidence in respect thereof be herein specifically prescribed); and any Board Resolution may be evidenced to the Trustee by a copy thereof certified by the Secretary or an Assistant Secretary of the Company. Before the Trustee acts or
refrains from acting, it may require an Officer’s Certificate or an Opinion of Counsel or both. The Trustee shall not be liable for any action it takes or omits to take in good faith in reliance on such Officer’s Certificate or Opinion of
Counsel. 
 (c) The Trustee may consult with counsel and require an Opinion of Counsel and any written or verbal advice of such counsel or
Opinion of Counsel shall be full and complete authorization and protection in respect of any action taken or omitted by it hereunder in good faith and in reliance on such advice or Opinion of Counsel. 

(d) The Trustee shall not be bound to make any investigation into the facts or matters stated in any resolution, certificate, statement,
instrument, opinion, report, notice, request, direction, consent, order, bond, debenture or other paper or document, but the Trustee, in its discretion, may make such further inquiry or investigation into such facts or matters as it may see fit,
and, if the Trustee shall determine to make such further inquiry or investigation, it shall be entitled, at a reasonable time on any Business Day after reasonable notice, to examine the books, records and premises of the Company, personally or by
agent or attorney at the expense of the Company and shall incur no liability of any kind by reason of such inquiry or investigation. 
 (e)
The Trustee may execute any of the trusts or powers hereunder or perform any duties hereunder either directly or by or through agents, custodians, nominees or attorneys and the Trustee shall not be responsible for any misconduct or negligence on the
part of any agent, custodian, nominee or attorney appointed by it with due care hereunder, and the permissive rights of the Trustee enumerated herein shall not be construed as duties. 

(f) The Trustee shall not be required to give any bond or surety in respect of the execution of the trusts and powers under this Indenture.

 (g) The Trustee may request that the Company deliver an Officer’s 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 Officer’s Certificate may be signed by any Person 

  
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authorized to sign an Officer’s Certificate, including any Person specified as so authorized in any such certificate previously delivered and not superseded. 

(h) The Trustee shall not be deemed to have notice of any Default or Event of Default (except in the case of a Default or Event of Default in
payment of scheduled principal of, premium, if any, or interest on, any Note) unless a Responsible Officer of the Trustee has actual knowledge thereof or unless written notice of any event which is in fact such a Default or Event of Default (and
stating the occurrence of a Default or Event of Default) is received by the Trustee at the Corporate Trust Office of the Trustee, and such notice references the Notes and this Indenture. 

(i) The Trustee shall not be responsible or liable for any action it takes or omits to take in good faith which it reasonably believes to be
authorized or within its rights or powers. 
 (j) The Trustee shall not be responsible or liable for any action taken or omitted by it in
good faith at the direction of the holders of not less than a majority in principal amount of the Notes as to the time, method and place of conducting any proceedings for any remedy available to the Trustee or the exercising of any power conferred
by this Indenture. 
 (k) Neither the Trustee nor any of its directors, officers, employees, agents or affiliates shall be responsible for
nor have any duty to monitor the performance or any action of the Company, or any of their respective directors, members, officers, agents, affiliates or employee, nor shall it have any liability in connection with the malfeasance or nonfeasance by
such party. The Trustee shall not be responsible for any inaccuracy in the information obtained from the Company or for any inaccuracy or omission in the records which may result from such information or any failure by the Trustee to perform its
duties as set forth herein as a result of any inaccuracy or incompleteness. 
 (l) In no event shall the Trustee be responsible or liable for
punitive, special, indirect, incidental or any consequential loss or damage of any kind whatsoever (including but not limited to lost profits), even if the Trustee has been advised of the likelihood of such loss or damage and regardless of the form
of action. 
 (m) Neither the Trustee nor any Agent shall have any responsibility or liability for any actions taken or not taken by the
Depositary. 
 Section 7.03. No Responsibility for Recitals, Etc. The recitals contained herein and in the Notes (except
in the Trustee’s certificate of authentication) shall be taken as the statements of the Company, and the Trustee assumes no responsibility for the correctness of the same. The Trustee makes no representations as to the validity, or sufficiency
or enforceability of this Indenture or of the Notes. The Trustee shall not be accountable for the use or application by the 

  
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Company of any Notes or the proceeds of any Notes authenticated and delivered by the Trustee in conformity with the provisions of this Indenture or any money paid to the Company or upon the
Company’s direction under any provision of this Indenture. The Trustee shall have no responsibility or liability with respect to any information, statement or recital in the Offering Memorandum or other disclosure material prepared or
distributed with respect to the issuance of the Notes. 
 Section 7.04. Trustee, Paying Agents, Conversion Agents, Bid Solicitation
Agent or Security Registrar May Own Notes. The Trustee, any Paying Agent, any Conversion Agent, Bid Solicitation Agent or Security Registrar (in each case, if other than an Affiliate of the Company), in its individual or any other
capacity, may become the owner or pledgee of Notes with the same rights it would have if it were not the Trustee, Paying Agent, Conversion Agent, Bid Solicitation Agent or Security Registrar. 

Section 7.05. Monies and Shares of Common Stock to Be Held in Trust. All monies and shares of Common Stock received by the
Trustee shall, until used or applied as herein provided, be held in trust for the purposes for which they were received. Money and shares of Common Stock held by the Trustee in trust hereunder need not be segregated from other funds except to the
extent required by law. The Trustee shall be under no liability for interest on any money received by it hereunder except as may be agreed from time to time by the Company and the Trustee. 

Section 7.06. Compensation and Expenses of Trustee. The Company covenants and agrees to pay to the Trustee in any capacity
under this Indenture, from time to time, and the Trustee shall be entitled to, compensation for all services rendered by it hereunder in any capacity (which shall not be limited by any provision of law in regard to the compensation of a trustee of
an express trust) as mutually agreed to in writing between the Trustee and the Company, and the Company will pay or reimburse the Trustee upon its request for all expenses, disbursements and advances incurred or made by the Trustee in accordance
with any of the provisions of this Indenture in any capacity thereunder (including the compensation and the reasonable expenses and disbursements of its agents and counsel and of all Persons not regularly in its employ) except any such expense,
disbursement or advance as shall have been caused by its gross negligence or willful misconduct. The Company also covenants to indemnify the Trustee in any capacity under this Indenture and any other document or transaction entered into in
connection herewith and its officers, directors, attorneys, employees and agents and any authenticating agent for, and to hold them harmless against, any loss, action, suit or proceeding at law or in equity, claim (whether asserted by the Company, a
Holder of any Person), damage, liability, fee, charge or expense of any character or nature (including attorneys’ fees) incurred without gross negligence or willful misconduct on the part of the Trustee (to the extent the same shall have been
finally adjudicated by a court of competent jurisdiction), its officers, directors, agents or employees, or such agent or authenticating agent, as the case may be, and arising out of or in connection with the acceptance or administration of this
Indenture or in any other capacity hereunder (whether such claims arise by or against the Company or a third person), including the reasonable costs and expenses of defending themselves against any claim of liability in the premises or enforcing the
Company’s obligations hereunder (including this section). The obligations of the Company under this Section 7.06 to compensate or indemnify the Trustee and to pay or reimburse the Trustee for expenses, disbursements and advances shall be
secured by a senior lien to which the Notes are hereby made subordinate on all money or property held or collected by 

  
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the Trustee, except, subject to the effect of Section 6.05, funds held in trust herewith for the benefit of the Holders of particular Notes. The Trustee’s right to receive payment of
any amounts due under this Section 7.06 shall not be subordinate to any other liability or indebtedness of the Company. The obligation of the Company under this Section 7.06 shall survive the satisfaction and discharge of this Indenture
and the earlier resignation or removal of the Trustee. The Company need not pay for any settlement made without its consent, which consent shall not be unreasonably withheld. The indemnification provided in this Section 7.06 shall extend to the
officers, directors, agents and employees of the Trustee. 
 Without prejudice to any other rights available to the Trustee under applicable
law, when the Trustee and its agents and any authenticating agent incur expenses or render services after an Event of Default specified in Section 6.01(h) or Section 6.01(i) occurs, the expenses and the compensation for the services are
intended to constitute expenses of administration under any bankruptcy, insolvency or similar laws. 
 Section 7.07.
Officer’s Certificate and Opinion of Counsel as Evidence. Except as otherwise provided in Section 7.01, whenever in the administration of the provisions of this Indenture the Trustee shall deem it necessary or
desirable that a matter be proved or established prior to taking or omitting any action hereunder, such matter (unless other evidence in respect thereof be herein specifically prescribed) may, in the absence of gross negligence or willful misconduct
on the part of the Trustee, be deemed to be conclusively proved and established by an Officer’s Certificate and Opinion of Counsel delivered to the Trustee, and such Officer’s Certificate and Opinion of Counsel, in the absence of gross
negligence or willful misconduct on the part of the Trustee, shall be full warrant to the Trustee for any action taken or omitted by it under the provisions of this Indenture upon the faith thereof. 

Section 7.08. Eligibility of Trustee. There shall at all times be a Trustee hereunder which shall be a Person that is
eligible pursuant to the Trust Indenture Act (as if the Trust Indenture Act were applicable hereto) to act as such and has a combined capital and surplus of at least $50,000,000. If such Person publishes reports of condition at least annually,
pursuant to law or to the requirements of any supervising or examining authority, then for the purposes of this Section, the combined capital and surplus of such Person shall be deemed to be its combined capital and surplus as set forth in its most
recent report of condition so published. If at any time the Trustee shall cease to be eligible in accordance with the provisions of this Section, it shall resign immediately in the manner and with the effect hereinafter specified in this Article.

 Section 7.09. Resignation or Removal of Trustee. (a) The Trustee may at any time resign by giving written notice
of such resignation to the Company. Upon receiving such notice of resignation, the Company shall promptly notify all Holders and appoint a successor trustee by written instrument, in duplicate, executed by order of the Board of Directors, one copy
of which instrument shall be delivered to the resigning Trustee and one copy to the successor trustee. If no successor trustee shall have been so appointed and have accepted appointment within 60 days after the giving of such notice of resignation
to the Holders, the resigning Trustee may, upon ten Business Days’ notice to the Company and the Holders and at the expense of the Company, petition any court of competent jurisdiction for the appointment of a successor trustee, or any Holder
who has been a bona fide holder of a Note or Notes for at least six months (or since the 

  
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date of this Indenture) may, subject to the provisions of Section 6.11, on behalf of himself or herself and all others similarly situated, petition any such court for the appointment of a
successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, appoint a successor trustee. 

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

(i) the Trustee shall cease to be eligible in accordance with the provisions of Section 7.08 and shall fail to resign
after written request therefor by the Company or by any such Holder, or 
 (ii) the Trustee shall become incapable of acting,
or shall be adjudged a bankrupt or insolvent, or a receiver of the Trustee or of its property shall be appointed, or any public officer shall take charge or control of the Trustee or of its property or affairs for the purpose of rehabilitation,
conservation or liquidation, 
 then, in either case, the Company may by a Board Resolution remove the Trustee and appoint a successor trustee by written
instrument, in duplicate, executed by order of the Board of Directors, one copy of which instrument shall be delivered to the Trustee so removed and one copy to the successor trustee, or, subject to the provisions of Section 6.11, any Holder
who has been a bona fide holder of a Note or Notes for at least six months (or since the date of this Indenture) may, on behalf of himself or herself and all others similarly situated, petition any court of competent jurisdiction at the expense of
the Company for the removal of the Trustee and the appointment of a successor trustee. Such court may thereupon, after such notice, if any, as it may deem proper and prescribe, remove the Trustee and appoint a successor trustee. 

(c) The Holders of a majority in aggregate principal amount of the Notes at the time Outstanding, as determined in accordance with
Section 8.04, may at any time remove the Trustee and nominate a successor trustee that shall be deemed appointed as successor trustee unless within ten days after notice to the Company of such nomination the Company objects thereto, in which
case the Trustee so removed or any Holder, upon the terms and conditions and otherwise as in Section 7.09(a) provided, may petition any court of competent jurisdiction, at the sole expense of the Company, for an appointment of a successor
trustee. 
 (d) Any resignation or removal of the Trustee and appointment of a successor trustee pursuant to any of the provisions of this
Section 7.09 shall become effective upon acceptance of appointment by the successor trustee as provided in Section 7.10. 

Section 7.10. Acceptance by Successor Trustee. Any successor trustee appointed as provided in Section 7.09 shall
execute, acknowledge and deliver to the Company and to its predecessor trustee an instrument accepting such appointment hereunder, and thereupon the resignation or removal of the predecessor trustee shall become effective and such successor trustee,
without any further act, deed or conveyance, shall become vested with all the rights, powers, duties and obligations of its predecessor hereunder, with like effect as if originally named as Trustee herein; but, nevertheless, on the written request
of the Company or of the successor trustee, the trustee ceasing to act shall, upon payment of any amounts then due it pursuant to the provisions of Section 7.06, execute and deliver an instrument transferring to such


  
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successor trustee all the rights and powers of the trustee so ceasing to act. Upon request of any such successor trustee, the Company shall execute any and all instruments in writing for more
fully and certainly vesting in and confirming to such successor trustee all such rights and powers. Any trustee ceasing to act shall, nevertheless, retain a senior lien to which the Notes are hereby made subordinate on all money or property held or
collected by such trustee as such, except for funds held in trust for the benefit of Holders of particular Notes, to secure any amounts then due it pursuant to the provisions of Section 7.06. 

No successor trustee shall accept appointment as provided in this Section 7.10 unless at the time of such acceptance such successor
trustee shall be eligible under the provisions of Section 7.08. 
 Upon acceptance of appointment by a successor trustee as provided in
this Section 7.10, each of the Company and the successor trustee, at the written direction and at the expense of the Company shall deliver or cause to be delivered notice of the succession of such trustee hereunder to the Holders. If the
Company fails to deliver such notice within ten days after acceptance of appointment by the successor trustee, the successor trustee shall cause such notice to be delivered at the expense of the Company. 

Section 7.11. Succession by Merger, Etc. Any corporation or other entity into which the Trustee may be merged or converted
or with which it may be consolidated, or any corporation or other entity resulting from any sale, merger, conversion or consolidation to which the Trustee shall be a party, or any corporation or other entity succeeding to all or substantially all of
the corporate trust business of the Trustee (including the administration of this Indenture), shall be the successor to the Trustee hereunder without the execution or filing of any paper or any further act on the part of any of the parties hereto;
provided that in the case of any corporation or other entity succeeding to all or substantially all of the corporate trust business of the Trustee such corporation or other entity shall be eligible under the provisions of Section 7.08.

 In case at the time such successor to the Trustee shall succeed to the trusts created by this Indenture, any of the Notes shall have been
authenticated but not delivered, any such successor to the Trustee may adopt the certificate of authentication of any predecessor trustee or authenticating agent appointed by such predecessor trustee, and deliver such Notes so authenticated; and in
case at that time any of the Notes shall not have been authenticated, any successor to the Trustee or an authenticating agent appointed by such successor trustee may authenticate such Notes either in the name of any predecessor trustee hereunder or
in the name of the successor trustee; and in all such cases such certificates shall have the full force which it is anywhere in the Notes or in this Indenture provided that the certificate of the Trustee shall have; provided, however,
that the right to adopt the certificate of authentication of any predecessor trustee or to authenticate Notes in the name of any predecessor trustee shall apply only to its successor or successors by sale, merger, conversion or consolidation. 

Section 7.12. Trustee’s Application for Instructions from the Company. Any application by the Trustee
for written instructions from the Company (other than with regard to any action proposed to be taken or omitted to be taken by the Trustee that affects the rights of the Holders of the Notes under this Indenture) may, at the option of the Trustee,
set forth in writing any 

  
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action proposed to be taken or omitted by the Trustee under this Indenture and the date on and/or after which such action shall be taken or such omission shall be effective. The Trustee shall not
be liable to the Company for any action taken by, or omission of, the Trustee in accordance with a proposal included in such application on or after the date specified in such application (which date shall not be less than three Business Days after
notice that the Company has been deemed to have been given pursuant to Section 17.03, unless any such officer shall have consented in writing to any earlier date), unless, prior to taking any such action (or the effective date in the case of
any omission), the Trustee shall have received written instructions in accordance with this Indenture in response to such application specifying the action to be taken or omitted. 

ARTICLE 8 

CONCERNING THE HOLDERS 

Section 8.01. Action by Holders. Whenever in this Indenture it is provided that the Holders of a specified percentage of
the aggregate principal amount of the Notes may take any action (including the making of any demand or request, the giving of any notice, consent or waiver or the taking of any other action), the fact that at the time of taking any such action, the
Holders of such specified percentage have joined therein may be evidenced (a) by any instrument or any number of instruments of similar tenor executed by Holders in person or by agent or proxy appointed in writing, or (b) by the record of
the Holders voting in favor thereof at any meeting of Holders duly called and held in accordance with the provisions of Article 9, or (c) by a combination of such instrument or instruments and any such record of such a meeting of Holders.
Whenever the Company or the Trustee solicits the taking of any action by the Holders of the Notes, the Company or the Trustee may, but shall not be required to, fix in advance of such solicitation, a date as the record date for determining Holders
entitled to take such action. The record date if one is selected shall be not more than fifteen days prior to the date of commencement of solicitation of such action. 

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

Section 8.03. Who Are Deemed Absolute Owners. The Company, the Trustee, any authenticating agent, any Paying Agent, any
Conversion Agent and any Security Registrar may deem the Person in whose name a Note shall be registered upon the Security Register to be, and may treat it as, the absolute owner of such Note (whether or not such Note shall be overdue and
notwithstanding any notation of ownership or other writing thereon made by any Person other than the Company or any Security Registrar) for the purpose of receiving payment of or on account of the principal (including any Fundamental Change
Repurchase Price or Redemption Price, if applicable) of and (subject to Section 2.03) accrued and unpaid interest on such Note, for conversion of such Note and for all other purposes; and neither the Company nor the Trustee nor any Paying Agent
nor any Conversion Agent nor any Security Registrar shall be affected by 

  
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any notice to the contrary. The sole registered holder of a Global Note shall be the Depositary or its nominee. All such payments or deliveries so made to any Holder for the time being, or upon
its order, shall be valid, and, to the extent of the sums or shares of Common Stock so paid or delivered, effectual to satisfy and discharge the liability for monies payable or shares deliverable upon any such Note. Notwithstanding anything to the
contrary in this Indenture or the Notes following an Event of Default, any holder of a beneficial interest in a Global Note may directly enforce against the Company, without the consent, solicitation, proxy, authorization or any other action of the
Depositary or any other Person, such holder’s right to exchange such beneficial interest for a Note in certificated form in accordance with the provisions of this Indenture. 

Section 8.04. Company-Owned Notes Disregarded. In determining whether the Holders of the requisite aggregate principal
amount of Notes have concurred in any direction, consent, waiver or other action under this Indenture, Notes that are owned by the Company, by any Subsidiary thereof or by any Affiliate of the Company or any Subsidiary thereof shall be disregarded
and deemed not to be Outstanding for the purpose of any such determination; provided that for the purposes of determining whether the Trustee shall be protected in relying on any such direction, consent, waiver or other action only Notes that
a Responsible Officer actually knows are so owned shall be so disregarded. Notes so owned that have been pledged in good faith may be regarded as Outstanding for the purposes of this Section 8.04 if the pledgee shall establish to the
satisfaction of the Trustee the pledgee’s right to so act with respect to such Notes and that the pledgee is not the Company, a Subsidiary thereof or an Affiliate of the Company or a Subsidiary thereof. In the case of a dispute as to such
right, any decision by the Trustee taken upon the advice of counsel shall be full protection to the Trustee. Upon request of the Trustee, the Company shall furnish to the Trustee promptly an Officer’s Certificate listing and identifying all
Notes, if any, known by the Company to be owned or held by or for the account of any of the above described Persons; and, subject to Section 7.01, the Trustee shall be entitled to accept such Officer’s Certificate as conclusive evidence of
the facts therein set forth and of the fact that all Notes not listed therein are Outstanding for the purpose of any such determination. 

Section 8.05. Revocation of Consents; Future Holders Bound. At any time prior to (but not after) the evidencing to the
Trustee, as provided in Section 8.01, of the taking of any action by the Holders of the percentage of the aggregate principal amount of the Notes specified in this Indenture in connection with such action, any Holder of a Note that is shown by
the evidence to be included in the Notes the Holders of which have consented to such action may, by filing written notice with the Trustee at its Corporate Trust Office and upon proof of holding as provided in Section 8.02, revoke such action
so far as concerns such Note. Except as aforesaid, any such action taken by the Holder of any Note shall be conclusive and binding upon such Holder and upon all future Holders and owners of such Note and of any Notes issued in exchange or
substitution therefor or upon registration of transfer thereof, irrespective of whether any notation in regard thereto is made upon such Note or any Note issued in exchange or substitution therefor or upon registration of transfer thereof. 

  
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 ARTICLE 9 

HOLDERS’ MEETINGS 

Section 9.01. Purpose of Meetings. A meeting of Holders may be called at any time and from time to time pursuant to the
provisions of this Article 9 for any of the following purposes: 
 (a) to give any notice to the Company or to the Trustee or to give any
directions to the Trustee permitted under this Indenture, or to consent to the waiving of any Default or Event of Default hereunder (in each case, as permitted under this Indenture) and its consequences, or to take any other action authorized to be
taken by Holders pursuant to any of the provisions of Article 6; 
 (b) to remove the Trustee and nominate a successor trustee pursuant to
the provisions of Article 7; 
 (c) to consent to the execution of an indenture or indentures supplemental hereto pursuant to the provisions
of Section 10.02; or 
 (d) to take any other action authorized to be taken by or on behalf of the Holders of any specified aggregate
principal amount of the Notes under any other provision of this Indenture or under applicable law. 
 Section 9.02. Call of Meetings
by Trustee. The Trustee may at any time call a meeting of Holders to take any action specified in Section 9.01, to be held at such time and at such place as the Trustee shall determine. Notice of every meeting of the Holders, setting
forth the time and the place of such meeting and in general terms the action proposed to be taken at such meeting and the establishment of any record date pursuant to Section 8.01 or the establishment of any special record date by the Trustee,
shall be delivered to Holders of such Notes at their addresses as they shall appear on the Security Register. Such notice shall also be delivered to the Company. Such notices shall be delivered not less than 20 nor more than 90 days prior to the
date fixed for the meeting. 
 Any meeting of Holders shall be valid without notice if the Holders of all Notes then Outstanding are present
in person or by proxy or if notice is waived before or after the meeting by the Holders of all Notes then Outstanding, and if the Company and the Trustee are either present by duly authorized representatives or have, before or after the meeting,
waived notice. 
 Section 9.03. Call of Meetings by Company or Holders. In case at any time the Company, pursuant to a
Board Resolution, or the Holders of at least 10% of the aggregate principal amount of the Notes then Outstanding, shall have requested the Trustee to call a meeting of Holders, by written request setting forth in reasonable detail the action
proposed to be taken at the meeting, and the Trustee shall not have mailed the notice of such meeting within 20 days after receipt of such request, then the Company or such Holders may determine the time and the place for such meeting and may call
such meeting to take any action authorized in Section 9.01, by delivering notice thereof as provided in Section 9.02. 

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

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

Subject to the provisions of Section 8.04, at any meeting of Holders each Holder or proxyholder shall be entitled to one vote for each
$1,000 principal amount of Notes held or represented by him or her; provided, however, that no vote shall be cast or counted at any meeting in respect of any Note challenged as not Outstanding and ruled by the chairman of the meeting
to be not Outstanding. The chairman of the meeting shall have no right to vote other than by virtue of Notes held by it or instruments in writing as aforesaid duly designating it as the proxy to vote on behalf of other Holders. Any meeting of
Holders duly called pursuant to the provisions of Section 9.02 or Section 9.03 may be adjourned from time to time by the Holders of a majority of the aggregate principal amount of Notes represented at the meeting, whether or not
constituting a quorum, and the meeting may be held as so adjourned without further notice. 
 Section 9.06. Voting. The
vote upon any resolution submitted to any meeting of Holders shall be by written ballot on which shall be subscribed the signatures of the Holders or of their representatives by proxy and the Outstanding aggregate principal amount of the Notes held
or represented by them. The permanent chairman of the meeting shall appoint two inspectors of votes who shall count all votes cast at the meeting for or against any resolution and who shall make and file with the secretary of the meeting their
verified written reports in duplicate of all votes cast at the meeting. A record in duplicate of the proceedings of each meeting of Holders shall be prepared by the secretary of the meeting and there shall be attached to said record the original
reports of the inspectors of votes on any vote by ballot taken thereat and affidavits by one or more Persons having knowledge of the facts setting forth a copy of the notice of the meeting and showing that said notice was mailed as provided in
Section 9.02. The record shall show the aggregate principal amount of the Notes voting in favor of or against any resolution. The record shall be signed and verified by the affidavits of the permanent chairman and secretary


  
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of the meeting and one of the duplicates shall be delivered to the Company and the other to the Trustee to be preserved by the Trustee, the latter to have attached thereto the ballots voted at
the meeting. 
 Any record so signed and verified shall be conclusive evidence of the matters therein stated. 

Section 9.07. No Delay of Rights by Meeting. Nothing contained in this Article 9 shall be deemed or construed to authorize
or permit, by reason of any call of a meeting of Holders or any rights expressly or impliedly conferred hereunder to make such call, any hindrance or delay in the exercise of any right or rights conferred upon or reserved to the Trustee or to the
Holders under any of the provisions of this Indenture or of the Notes. Nothing contained in this Article 9 shall be deemed or construed to limit any Holder’s actions pursuant to the applicable procedures of the Depositary. 

ARTICLE 10 

SUPPLEMENTAL INDENTURES 

Section 10.01. Supplemental Indentures Without Consent of Holders. Without the consent of any Holder, the Company, when
authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time amend or supplement this Indenture or the Notes for one or more of the following purposes: 

(a) to cure any ambiguity, omission, defect or inconsistency; 

(b) to provide for the assumption by a Successor Company of the obligations of the Company under this Indenture pursuant to Article 11 hereof;

 (c) to add guarantees with respect to the Notes; 

(d) to secure the Notes; 
 (e) to
add to the covenants or Events of Default of the Company for the benefit of the Holders or surrender any right or power conferred upon the Company under this Indenture; 

(f) to make any change that does not adversely affect the rights of any Holder under this Indenture or the Notes; 

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

(h) to appoint a successor Trustee with respect to the Notes; 

(i) to provide for the acceptance of appointment by a successor Trustee pursuant to Article 7 or facilitate the administration of the trusts
under this Indenture by more than one trustee or paying agent; 

  
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 (j) to irrevocably elect a Settlement Method and/or irrevocably elect a Specified Dollar
Amount, or eliminate the Company’s right to elect a Settlement Method; provided, however, that no such election or elimination will affect any Settlement Method theretofore elected (or deemed to be elected) with respect to any
Note pursuant to the provisions of Section 14.02; 
 (k) in connection with any Share Exchange Event, to provide that the Notes are
convertible into Reference Property, subject to the provisions of Section 14.02, and make certain related changes to the terms of the Notes to the extent expressly required by this Indenture; 

(l) to comply with any requirement of the Commission in connection with the qualification of this Indenture under the Trust Indenture Act; or

 (m) to conform the provisions of this Indenture or the Notes to the “Description of notes” section of the Offering Memorandum.

 Upon the written request of the Company, the Trustee is hereby authorized to join with the Company in the execution of any such
supplemental indenture, to make any further appropriate agreements and stipulations that may be therein contained, but the Trustee shall not be obligated to, but may in its discretion, enter into any supplemental indenture that affects the
Trustee’s own rights, duties, liabilities, indemnities or immunities under this Indenture or otherwise. 
 Any supplemental indenture
authorized by the provisions of this Section 10.01 may be executed by the Company and the Trustee without the consent of the Holders of any of the Notes at the time Outstanding, notwithstanding any of the provisions of Section 10.02. 

Section 10.02. Supplemental Indentures with Consent of Holders. With the consent (evidenced as provided in Article 8) of
the Holders of at least a majority of the aggregate principal amount of the Notes then Outstanding (determined in accordance with Article 8 and including, without limitation, consents obtained in connection with a repurchase of, or tender or
exchange offer for, Notes), the Company, when authorized by the resolutions of the Board of Directors and the Trustee, at the Company’s expense, may from time to time and at any time enter into an indenture or indentures supplemental hereto for
the purpose of adding any provisions to or changing in any manner or eliminating any of the provisions of this Indenture or the Notes or, any supplemental indenture or of modifying in any manner the rights of the Holders; provided,
however, that, without the consent of each Holder of an Outstanding Note affected, no such supplemental indenture shall: 
 (a) reduce
the principal amount of Notes whose Holders must consent to an amendment, supplement or waiver; 
 (b) reduce the rate of or extend the
stated time for payment of interest on any Note; 
 (c) reduce the principal of or extend the Maturity Date of any Note; 

(d) make any change that adversely affects the conversion rights of any Notes other than as permitted or required by this Indenture; 

  
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 (e) reduce the Redemption Price or the Fundamental Change Repurchase Price of any Note or
amend or modify in any manner adverse to the Holders the Company’s obligation to make such payments, whether through an amendment or waiver of provisions in the covenants, definitions or otherwise; 

(f) make any Note payable in a money, or at a place of payment, other than that stated in the Note and this Indenture; 

(g) change the ranking of the Notes; 

(h) impair the right of any Holder to receive payment of principal and interest on such Holder’s Notes on or after the due dates therefor
or to institute suit for the enforcement of any payment on or with respect to such Holder’s Notes; or 
 (i) make any change in the
provisions in this Article 10 that require each Holder’s consent or in the waiver provisions in Section 6.02 or Section 6.09. 

Upon the written request of the Company, and upon the filing with the Trustee of evidence of the consent of the requisite Holders as aforesaid
and subject to Section 10.05, the Trustee shall join with the Company in the execution of such supplemental indenture unless such supplemental indenture affects the Trustee’s own rights, duties, liabilities, indemnities or immunities under
this Indenture or otherwise, in which case the Trustee may in its discretion, but shall not be obligated to, enter into such supplemental indenture. 

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

Until an amendment, supplement or waiver becomes effective, any consent to it by a Holder is a continuing consent by such Holder and every
subsequent Holder of such consenting Holder’s Note, or portion of such consenting Holder’s Note, that evidences the same debt as such consenting Holder’s Note, even if notation of the consent is not made on any Note. However, any such
Holder or subsequent Holder may revoke the consent as to its Note if the Trustee receives written notice of revocation before the date the amendment, supplement or waiver becomes effective. An amendment, supplement or waiver becomes effective in
accordance with its terms and thereafter binds every Holder. 
 Section 10.03. Effect of Supplemental Indentures. Upon
the execution of any supplemental indenture pursuant to the provisions of this Article 10, this Indenture shall be and be deemed to be modified and amended in accordance therewith and the respective rights, limitation of rights, obligations, duties,
indemnities and immunities under this Indenture of the Trustee, the Company and the Holders shall thereafter be determined, exercised and enforced hereunder subject in all respects to such modifications and amendments and all the terms and
conditions of 

  
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any such supplemental indenture shall be and be deemed to be part of the terms and conditions of this Indenture for any and all purposes. 

Section 10.04. Notation on Notes. Notes authenticated and delivered after the execution of any supplemental indenture
pursuant to the provisions of this Article 10 may, at the Company’s request and expense, bear a notation in form approved by the Trustee as to any matter provided for in such supplemental indenture. If the Company shall so determine, new
Notes so modified as to conform, in the opinion of the Board of Directors, to any modification of this Indenture contained in any such supplemental indenture may, at the Company’s expense, be prepared and executed by the Company, authenticated,
by the Trustee (or an Authenticating Agent duly appointed by the Trustee pursuant to Section 17.10) upon receipt of a Company Order and delivered in exchange for the Notes then Outstanding, upon surrender of such Notes then Outstanding. 

Section 10.05. Evidence of Compliance of Supplemental Indenture to Be Furnished to Trustee. In addition to the documents
required by Section 17.05, the Trustee shall receive an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any supplemental indenture executed pursuant hereto complies with the requirements of this Article 10, is
permitted or authorized by this Indenture and is the legal, valid and binding obligation of the Company, enforceable against it in accordance with its terms. 

ARTICLE 11 

CONSOLIDATION, MERGER, SALE, CONVEYANCE AND LEASE 

Section 11.01. Company May Consolidate, Etc. on Certain Terms. Subject to the provisions of Section 11.02, the Company
shall not consolidate with, merge with or into, or sell, convey, transfer or lease all or substantially all of its properties and assets to another Person, unless: 

(a) the resulting, surviving or transferee Person (the “Successor Company”), if not the Company, shall be a corporation organized and
existing under the laws of the United States of America, any State thereof or the District of Columbia, and the Successor Company (if not the Company) shall expressly assume, by supplemental indenture all of the obligations of the Company under the
Notes and this Indenture; and 
 (b) immediately after giving effect to such transaction, no Default or Event of Default shall have occurred
and be continuing under this Indenture. 
 For purposes of this Section 11.01, the sale, conveyance, transfer or lease of all or
substantially all of the properties and assets of one or more Subsidiaries of the Company to another Person, which properties and assets, if held by the Company instead of such Subsidiaries, would constitute all or substantially all of the
properties and assets of the Company on a consolidated basis, shall be deemed to be the sale, conveyance, transfer or lease of all or substantially all of the properties and assets of the Company to another Person. 

  
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 Section 11.02. Successor Corporation to Be Substituted. In case of any
such consolidation, merger, sale, conveyance, transfer or lease and upon the assumption by the Successor Company, 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 and accrued and unpaid interest on all of the Notes, the due and punctual delivery or payment, as the case may be, of any consideration due upon conversion of the Notes and the due and punctual performance of all of the
covenants and conditions of this Indenture to be performed by the Company, such Successor Company (if not the Company) shall succeed to and, except in the case of a lease of all or substantially all of the properties and assets of the Company as an
entirety, shall be substituted for the Company, 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 Notes issuable hereunder which theretofore shall not have been signed by the Company and delivered to the Trustee; and, upon a Company Order of such Successor Company instead of the Company and subject to all the terms,
conditions and limitations in this Indenture prescribed, the Trustee shall authenticate and shall deliver, or cause to be authenticated and delivered, any Notes that previously shall have been signed and delivered by the Officers of the Company to
the Trustee for authentication, and any Notes that such Successor Company thereafter shall cause to be signed and delivered to the Trustee for that purpose. All the Notes so issued shall in all respects have the same legal rank and benefit under
this Indenture as the Notes theretofore or thereafter issued in accordance with the terms of this Indenture as though all of such Notes had been issued at the date of the execution hereof. In the event of any such consolidation, merger, sale,
conveyance or transfer (but not in the case of a lease), upon compliance with this Article 11 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 11) 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 Notes and from its
obligations under this Indenture and the Notes. 
 In case of any such consolidation, merger, sale, conveyance, transfer or lease, such
changes in phraseology and form (but not in substance) may be made in the Notes thereafter to be issued as may be appropriate. 

Section 11.03. Opinion of Counsel to Be Given to Trustee. No such consolidation, merger, sale, conveyance, transfer or
lease pursuant to which the Company is not the resulting, surviving or transferee Person shall be effective unless the Trustee shall receive an Officer’s Certificate and an Opinion of Counsel as conclusive evidence that any such consolidation,
merger, sale, conveyance, transfer or lease and any such assumption and, if a supplemental indenture is required in connection with such transaction, such supplemental indenture, complies with the provisions of this Article 11. 

ARTICLE 12 

IMMUNITY OF INCORPORATORS, STOCKHOLDERS, OFFICERS AND
DIRECTORS 
 Section 12.01. Indenture and Notes Solely Corporate Obligations. No recourse under or upon
any obligation, covenant or agreement of this Indenture, or of the Notes, or for any claim 

  
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based thereon or otherwise in respect thereof, shall be had against any incorporator, stockholder, officer or director, past, present or future as such, of the Company, of any predecessor or
Successor Company or of any issuer of any securities underlying the Notes, either directly or through the Company, any such predecessor or Successor Company or any such issuer, whether by virtue of any constitution, statute or rule of law, or by the
enforcement of any assessment or penalty or otherwise; it being expressly understood that this Indenture and the obligations issued hereunder are solely corporate obligations, and that no such personal liability whatever shall attach to, or is or
shall be incurred by, the incorporators, stockholders, officers or directors as such, of the Company, of any such predecessor or Successor Company or any such issuer, or any of them, because of the creation of the indebtedness hereby authorized, or
under or by reason of the obligations, covenants or agreements contained in this Indenture or in the Notes or implied therefrom; and that any and all such personal liability of every name and nature, either at common law or in equity or by
constitution or statute, of, and any and all such rights and claims against, every such incorporator, stockholder, officer or director as such, because of the creation of the indebtedness hereby authorized, or under or by reason of the obligations,
covenants or agreements contained in this Indenture or in the Notes or implied therefrom, are hereby expressly waived and released as a condition of, and as a consideration for, the execution of this Indenture and the issuance of the Notes. 

ARTICLE 13 

[INTENTIONALLY OMITTED] 

ARTICLE 14 

CONVERSION OF NOTES 

Section 14.01. Conversion Privilege. (a) Subject to and upon compliance with the provisions of this Article 14, each
Holder of a Note shall have the right, at such Holder’s option, to convert all or any portion (if the portion to be converted is $1,000 principal amount or an integral multiple thereof) of such Note (i) subject to satisfaction of the
conditions described in Section 14.01(b), at any time prior to the close of business on the Business Day immediately preceding December 15, 2026 under the circumstances and during the periods set forth in Section 14.01(b), and
(ii) regardless of the conditions described in Section 14.01(b), on or after December 15, 2026 and prior to the close of business on the Business Day immediately preceding the Maturity Date, in each case, at an initial conversion rate
of 13.9505 shares of Common Stock (subject to adjustment as provided in this Article 14, the “Conversion Rate”) per $1,000 principal amount of Notes (subject to, and in accordance with, the settlement provisions of
Section 14.02, the “Conversion Obligation”). 
 (b) (i) Prior to the close of business on the Business Day immediately
preceding December 15, 2026, a Holder may surrender all or any portion of its Notes for conversion at any time during the five Business Day period immediately after any five consecutive Trading Day period (the “Measurement
Period”) in which the Trading Price per $1,000 principal amount of Notes, as determined following a request by a Holder of Notes in accordance with this subsection (b)(i), for each Trading Day of the Measurement Period was less than 98% of
the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate on each such Trading 

  
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Day (the “Trading Price Condition”). The Trading Prices shall be determined by the Bid Solicitation Agent pursuant to this subsection (b)(i) and the definition of Trading Price
set forth in this Indenture. If the Company is not acting as the Bid Solicitation Agent, the Company shall provide written notice to the Bid Solicitation Agent of the three independent nationally recognized securities dealers selected by the Company
pursuant to the definition of Trading Price, along with appropriate contact information for each. The Bid Solicitation Agent (if other than the Company) shall have no obligation to solicit bids as described above unless the Company has requested
such solicitation in writing, and the Company shall have no obligation to make such request (or, if the Company is acting as Bid Solicitation Agent, the Company shall have no obligation to solicit such bids) unless a Holder of at least $1,000,000
aggregate principal amount of Notes provides the Company with reasonable evidence that the Trading Price per $1,000 principal amount of Notes would be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the
Conversion Rate, at which time the Company shall instruct the Bid Solicitation Agent (if other than the Company) to solicit, or if the Company is acting as Bid Solicitation Agent, the Company shall solicit, such bids beginning on the next Trading
Day and on each successive Trading Day until the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate. The Company shall
determine the Trading Price for each Trading Day in accordance with the bids so solicited and shall instruct the three independent nationally recognized securities dealers to deliver bids to the Bid Solicitation Agent (if other than the Company). If
(x) the Company is not acting as Bid Solicitation Agent and the Company does not, when the Company is required to, instruct the Bid Solicitation Agent to obtain bids, or if the Company gives such instruction to the Bid Solicitation Agent, and
the Bid Solicitation Agent fails to obtain bids or (y) the Company is acting as Bid Solicitation Agent and the Company fails to obtain bids, or the Company fails to make such determination, then, in either case, the Trading Price per $1,000
principal amount of Notes shall be deemed to be less than 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate on each Trading Day of such failure. If the Trading Price Condition set forth above has been
met, the Company shall so notify the Holders, the Trustee and the Conversion Agent (if other than the Trustee) in writing on or within one Business Day of such determination. If, at any time after the Trading Price Condition set forth above has been
met, the Trading Price per $1,000 principal amount of Notes is greater than or equal to 98% of the product of the Last Reported Sale Price of the Common Stock and the Conversion Rate for such Trading Day, the Company shall so notify the Holders of
the Notes, the Trustee and the Conversion Agent (if other than the Trustee) in writing that the Trading Price Condition is no longer met and thereafter neither the Company nor the Bid Solicitation Agent (if other than the Company) shall be required
to solicit bids again until another qualifying request is made as provided in this Section. 
 (ii) If, prior to the close of
business on the Business Day immediately preceding December 15, 2026, the Company elects to: 
 (A) issue to all or
substantially all holders of the Common Stock any rights, options or warrants (other than a distribution of rights pursuant to a stockholder rights plan where such rights have not separated from the Common Stock) entitling them, for a period of not
more than 45 calendar days after the announcement date of such issuance, to subscribe for or purchase shares of the 

  
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Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the
Trading Day immediately preceding the date of announcement of such issuance; or 
 (B) distribute to all or substantially all
holders of the Common Stock the Company’s assets, securities or rights to purchase securities of the Company (other than a distribution of rights pursuant to a stockholder rights plan where such rights have not separated from the Common Stock),
which distribution has a per share value, as reasonably determined by the Company, exceeding 10% of the Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the date of announcement for such distribution, 

then, in either case, the Company shall notify all Holders of the Notes (with a copy to the Trustee and the Conversion Agent (if other than the Trustee)) in
writing (such notification, the “Certain Distributions Notification”) (x) at least 70 Scheduled Trading Days prior to or (y) if in the Certain Distributions Notification, the Company elects Physical Settlement in respect of any
conversions with Conversion Dates that occur from, and including, the date of the Certain Distributions Notification to, and including, the Certain Distributions Conversion Period End Date, at least 10 Scheduled Trading Days’ notice prior to,
in each case, the Ex-Dividend Date for such issuance or distribution. Once the Company has given such notice, a Holder may surrender all or any portion of its Notes for conversion at any time until the earlier
of (1) the close of business on the Business Day immediately preceding the Ex-Dividend Date for such issuance or distribution and (2) the Company’s announcement that such issuance or
distribution will not take place (such earlier date and time, the “Certain Distributions Conversion Period End Date”), in each case, even if the Notes are not otherwise convertible at such time. 

(iii) If a transaction or event that constitutes a Fundamental Change or a Make-Whole Fundamental Change occurs prior to the
close of business on the Business Day immediately preceding December 15, 2026, regardless of whether a Holder has the right to require the Company to repurchase the Notes pursuant to Section 15.02, or if the Company is a party to a Share
Exchange Event (other than any Share Exchange Event that is solely for the purpose of changing the Company’s jurisdiction of organization that (x) does not constitute a Fundamental Change or a Make-Whole Fundamental Change and
(y) results in a reclassification, conversion or exchange of outstanding shares of Common Stock solely into common equity of the surviving entity and such common equity becomes Reference Property) that occurs prior to the close of business on
the Business Day immediately preceding December 15, 2026 (each such Fundamental Change, Make-Whole Fundamental Change or Share Exchange Event, a “Corporate Event”), then, in each case, all or any portion of a Holder’s Notes may
be surrendered for conversion at any time from or after the effective date of the Corporate Event until the earlier of (x) 35 Trading Days after the effective date of such Corporate Event or, if such Corporate Event also constitutes a Fundamental
Change, until the close of business on the Business Day immediately preceding the related Fundamental Change Repurchase Date and (y) the Business Day immediately preceding the Maturity Date. The Company shall notify Holders, the Trustee and the
Conversion Agent (if other than the Trustee) in 

  
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writing as promptly as practicable following the date the Company publicly announces such Corporate Event but in no event later than the effective date of such Corporate Event. 

(iv) Prior to the close of business on the Business Day immediately preceding December 15, 2026, a Holder may surrender
all or any portion of its Notes for conversion at any time during any calendar quarter commencing after the calendar quarter ending on September 30, 2022 (and only during such calendar quarter), if the Last Reported Sale Price of the Common
Stock for at least 20 Trading Days (whether or not consecutive) during the period of 30 consecutive Trading Days ending on, and including, the last Trading Day of the immediately preceding calendar quarter is greater than or equal to 130% of the
Conversion Price on each applicable Trading Day. The Company shall determine at the beginning of each calendar quarter commencing after September 30, 2022 whether the Notes may be surrendered for conversion in accordance with this clause
(iv) and shall notify the Holders, the Conversion Agent (if other than the Trustee) and the Trustee as to whether or not the Notes become convertible in accordance with this clause (iv). 

(v) If the Company calls any Note for redemption pursuant to Article 16 prior to the close of business on the Business Day
immediately preceding December 15, 2026, then the Holder of the Note called for redemption may surrender such Note for conversion at any time from, and including the Redemption Notice Date until the close of business on the Scheduled Trading
Day preceding the Redemption Date (any such period, a “Redemption Period”), even if the Notes are not otherwise convertible at such time. After that time, the right to convert such Note shall expire, unless the Company defaults in
the payment of the Redemption Price, in which case a Holder of a Note called for redemption may convert such Note until the Redemption Price has been paid or duly provided for. If the Company elects to redeem less than all of the Outstanding Notes
pursuant to Article 16 and the Holder of any Note (or any owner of a beneficial interest in any Global Note) is reasonably not able to determine, before the close of business on the 64th Scheduled Trading Day immediately before the relevant
Redemption Date, whether such Note or beneficial interest, as applicable, is to be redeemed pursuant to such redemption (and, as a result thereof, convertible on account of the related Redemption Notice in accordance with the provisions of this
indenture), then such Holder or owner, as applicable, shall be entitled to convert such Note (or beneficial interest) during the related Redemption Period, and each such conversion will be deemed to be of a Note called for redemption (and each such
conversion will be deemed to occur during the related Redemption Period). 
 Section 14.02. Conversion Procedure; Settlement Upon
Conversion. 
 (a) Subject to this Section 14.02, Section 14.03(b) and Section 14.07(a), upon conversion of any
Note, the Company shall pay or deliver, as the case may be, to the converting Holder, in respect of each $1,000 principal amount of Notes being converted, cash (“Cash Settlement”), shares of Common Stock, together with cash, if
applicable, in lieu of delivering any fractional share of Common Stock in accordance with subsection (j) of this Section 14.02 (“Physical Settlement”) or a combination of cash and shares of Common Stock, together with


  
 63 












 
cash, if applicable, in lieu of delivering any fractional share of Common Stock in accordance with subsection (j) of this Section 14.02 (“Combination Settlement”), at
its election, as set forth in this Section 14.02. 
 (i) All conversions of Notes called for redemption (or deemed
called for redemption) for which the relevant Conversion Date occurs during the related Redemption Period and all conversions for which the relevant Conversion Date occurs on or after December 15, 2026 shall be settled using the same Settlement
Method. 
 (ii) Except for any such conversions for which the relevant Conversion Date occurs on or after December 15,
2026 or occurs during a Redemption Period and except to the extent the Company has elected Physical Settlement as described in Section 14.01(b)(ii), in the related Certain Distributions Notification described therein or previously made an
irrevocable election with respect to all subsequent conversions of Notes as described in Section 14.02(a)(iv), the Company shall use the same Settlement Method for all conversions occurring with the same Conversion Date, but the Company shall
not have any obligation to use the same Settlement Method with respect to conversions with different Conversion Dates. 

(iii) If the Company elects a Settlement Method in respect of a Conversion Date (or in respect of conversions occurring on or
after December 15, 2026 or during a Redemption Period, as the case may be), the Company shall deliver a notice (the “Settlement Notice”) of the relevant Settlement Method in respect of such Conversion Date (or in respect of
conversions occurring on or after December 15, 2026 or during a Redemption Period, as the case may be), to the Trustee, the Conversion Agent (if other than the Trustee) and converting Holders no later than, in the case of any conversions of
Notes: 
 (A) for which the relevant Conversion Date occurs prior to December 15, 2026, the close of business on the
Trading Day immediately following the relevant Conversion Date; 
 (B) for which the relevant Conversion Date occurs on or
after December 15, 2026, no later than the close of business on the Business Day immediately preceding December 15, 2026; 

(C) called (or deemed called) for redemption for which the relevant Conversion Date occurs during the related Redemption
Period, the Redemption Notice Date; and 
 (D) for which the Company has irrevocably elected Physical Settlement as described
in Section 14.01(b)(ii), in the related Certain Distributions Notification described therein. 
 (in each case, the “Settlement
Method Election Deadline”). 

  
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 (iv) If the Company does not elect a Settlement Method prior to the
applicable deadline set forth in clause (iii) above, the Company shall no longer have the right to elect a Settlement Method and the Company shall be deemed to have elected the Default Settlement Method with respect to such conversion. Such
Settlement Notice shall specify the relevant Settlement Method and in the case of an election of Combination Settlement, the relevant Settlement Notice shall indicate the Specified Dollar Amount per $1,000 principal amount of Notes. If the Company
timely delivers a Settlement Notice electing Combination Settlement (or is deemed to have elected Combination Settlement) in respect of its Conversion Obligation but does not indicate a Specified Dollar Amount per $1,000 principal amount of Notes in
such Settlement Notice, the Specified Dollar Amount per $1,000 principal amount of Notes shall be deemed to be $1,000. For the avoidance of doubt, the Company’s failure to timely elect a Settlement Method or specify as applicable a Specified
Dollar Amount shall not constitute a Default under this Indenture. 
 In addition, by notice to Holders, the Company may,
prior to December 15, 2026, at its option, elect to irrevocably fix the Settlement Method to any Settlement Method that the Company is then permitted to elect, including Combination Settlement with a Specified Dollar Amount per $1,000 principal
amount of Notes of $1,000 or with an ability to continue to set the Specified Dollar Amount per $1,000 principal amount of Notes at or above a specific amount set forth in such election notice. Concurrently with providing notice to all Holders of an
election to change the Default Settlement Method or irrevocably fix the Settlement Method, the Company shall promptly either post an announcement on its website or issue a report on Form 8-K (or any successor
form) disclosing such Default Settlement Method or irrevocably fixed Settlement Method. If the Company changes the Default Settlement Method or irrevocably elects to fix the Settlement Method, in either case, to Combination Settlement with an
ability to continue to set the Specified Dollar Amount per $1,000 principal amount of Notes at or above a specific amount, the Company shall, after the date of such change or election, as the case may be, inform Holders converting, the Trustee and
the Conversion Agent (if other than the Trustee) in writing of such Specified Dollar Amount no later than the relevant Settlement Method election deadline, or, if the Company does not timely notify Holders, such Specified Dollar Amount will be the
specific amount set forth in the change or election notice or, if no specific amount was set forth in the change or election notice, such Specified Dollar Amount will be $1,000 per $1,000 principal amount of Notes. A change in the Default Settlement
Method or an irrevocable election will apply to all Note conversions on Conversion Dates occurring subsequent to delivery of such notice; provided, however, that no such change or election will affect any Settlement Method theretofore
elected (or deemed to be elected) with respect to any Note. For the avoidance of doubt, such an irrevocable election, if made, will be effective without the need to amend this Indenture or the Notes, including pursuant to Section 10.01(j).
However, the Company may nonetheless choose to execute such an amendment at its option. 
 (v) The cash, shares of Common
Stock or combination of cash and shares of Common Stock in respect of any conversion of Notes (the “Settlement Amount”) shall be computed as follows: 

  
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 (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 in effect on the
Conversion Date; 
 (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 60 consecutive Trading Days during the
related 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 or deliver, as the case may be, 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 60 consecutive Trading Days during the related Observation Period. 
 If more than one
Note is 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 surrendered. 

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

(b) Subject to Section 14.02(e), before any Holder of a Note shall be entitled to convert a Note as set forth above, such Holder shall
(i) in the case of a Global Note, comply with the procedures of the Depositary in effect at that time and, if required, pay funds equal to interest payable on the next Interest Payment Date to which such Holder is not entitled and, if required,
pay all transfer or similar taxes, if any, as set forth in Section 14.02(h) and (ii) in the case of a Physical Note (1) complete, manually sign and deliver an irrevocable notice to the Conversion Agent as set forth in the Form of
Notice of Conversion (or a facsimile, PDF or other electronic transmission thereof) (a “Notice of Conversion”) at the office of the Conversion Agent and state in writing therein the principal amount of Notes to be converted and the
name or names (with addresses) in which such Holder wishes the certificate or certificates for any shares of Common Stock to be delivered upon settlement of the Conversion Obligation to be registered, (2)


  
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surrender such Notes, duly endorsed to the Company or in blank (and accompanied by appropriate endorsement and transfer documents), at the office of the Conversion Agent, (3) if required,
furnish appropriate endorsements and transfer documents, (4) if required, pay funds equal to the interest payable on the next Interest Payment Date to which such Holder is not entitled as set forth in Section 14.02(h) and (5) if
required, pay all transfer or similar taxes. The Trustee (and if different, the Conversion Agent) shall notify the Company of any conversion pursuant to this Article 14 on the Conversion Date for such conversion. No Notice of Conversion with respect
to any Notes may be surrendered by a Holder thereof if such Holder has also delivered a Fundamental Change Repurchase Notice to the Company in respect of such Notes and has not validly withdrawn such Fundamental Change Repurchase Notice in
accordance with Section 15.03. 
 If more than one Note shall be surrendered for conversion at one time by the same Holder, the
Conversion Obligation with respect to such Notes shall be computed on the basis of the aggregate principal amount of the Notes (or specified portions thereof to the extent permitted thereby) so surrendered. 

(c) A Note shall be deemed to have been converted immediately prior to the close of business on the date (the “Conversion
Date”) that the Holder has complied with the requirements set forth in subsection (b) above. Except as set forth in Section 14.03(b) and Section 14.07(a), the Company shall pay or deliver, as the case may be, the
consideration due in respect of the Conversion Obligation on the second Business Day immediately following the relevant Conversion Date, if the Company elects Physical Settlement, or on the second Business Day immediately following the last Trading
Day of the Observation Period, in the case of any other Settlement Method. If any shares of Common Stock are due to converting Holders, the Company shall issue or cause to be issued, and deliver to the Conversion Agent or to such Holder, or such
Holder’s nominee or nominees, certificates or a book-entry transfer through the Depositary for the full number of shares of Common Stock to which such Holder shall be entitled in satisfaction of the Company’s Conversion Obligation. 

(d) In case any Physical Note shall be surrendered for partial conversion, the Company shall execute, and upon Company Order the Trustee shall
authenticate and deliver to or upon the written order of the Holder of the Note so surrendered a new Note or Notes in authorized denominations in an aggregate principal amount equal to the unconverted portion of the surrendered Note, without payment
of any service charge by the converting Holder but, if required by the Company or Trustee, with payment of a sum sufficient to cover any documentary, stamp or similar issue or transfer tax or similar governmental charge required by law or that may
be imposed in connection therewith as a result of the name of the Holder of the new Notes issued upon such conversion being different from the name of the Holder of the old Notes surrendered for such conversion. 

(e) If a Holder submits a Note for conversion, the Company shall pay any documentary, stamp or similar issue or transfer tax due on the issue
of any shares of Common Stock upon conversion, unless the tax is due because the Holder requests any such shares to be issued in a name other than the Holder’s name, in which case the Holder shall pay that tax. 

  
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 (f) Except as provided in Section 14.04, no adjustment shall be made for dividends on
any shares of Common Stock issued upon the conversion of any Note as provided in this Article 14. 
 (g) Upon the conversion of an interest
in a Global Note, the Trustee, or the Custodian at the direction of the Trustee, shall make a notation on such Global Note as to the reduction in the principal amount represented thereby. The Company shall notify the Trustee in writing of any
conversion of Notes effected through any Conversion Agent other than the Trustee. 
 (h) Upon conversion, a Holder shall not receive any
separate cash payment for accrued and unpaid interest, if any, except as set forth below. The Company’s settlement of the full Conversion Obligation shall be deemed to satisfy in full its obligation to pay the principal amount of the Note and
accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date. As a result, accrued and unpaid interest, if any, to, but not including, the relevant Conversion Date shall be deemed to be paid in full rather than cancelled,
extinguished or forfeited. Upon a conversion of Notes into a combination of cash and shares of Common Stock, accrued and unpaid interest will be deemed to be paid first out of the cash paid upon such conversion. Notwithstanding the foregoing, if
Notes are converted after the close of business on a Regular Record Date but prior to the open of business on the corresponding Interest Payment Date, Holders of such Notes as of the close of business on such Regular Record Date shall receive the
full amount of interest payable on such Notes on the corresponding Interest Payment Date notwithstanding the conversion. However, Notes surrendered for conversion during the period from the close of business on any Regular Record Date to the open of
business on the immediately following Interest Payment Date must be accompanied by funds equal to the amount of such interest payable on the Notes so converted on the corresponding Interest Payment Date (regardless of whether the Holder was the
Holder of record on the corresponding Regular Record Date); provided that no such payment shall be required (1) for conversions following the close of business on the Regular Record Date immediately preceding the Maturity Date; (2) if the
Company has specified a Redemption Date that is after a regular Record Date and on or prior to the Business Day immediately following the corresponding Interest Payment Date, in respect of Notes converted after the close of business on such Regular
Record Date and on or prior to the Interest Payment Date; (3) if the Company has specified a Fundamental Change Repurchase Date that is after a Regular Record Date and on or prior to the Business Day immediately following the corresponding
Interest Payment Date, in respect of Notes converted 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 (4) to the extent of any Defaulted Amounts, if any Defaulted
Amounts exist at the time of conversion with respect to such Note. Therefore, for the avoidance of doubt, all Holders of record on the Regular Record Date immediately preceding the Maturity Date, any Redemption Date described in clause
(2) above and any Fundamental Change Repurchase Date described in clause (3) above shall receive the full interest payment due on the Maturity Date or other applicable Interest Payment Date regardless of whether their Notes have been
converted following such Regular Record Date. 
 (i) The Person in whose name the shares of Common Stock shall be issuable upon conversion
shall become the holder of record of such shares as of the close of business on the relevant Conversion Date (if the Company elects to satisfy the related Conversion Obligation by 

  
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Physical Settlement) or the last Trading Day of the relevant Observation Period (if the Company elects to satisfy the related Conversion Obligation by Combination Settlement), as the case may be.
Upon a conversion of Notes, such Person shall no longer be a Holder of such Notes surrendered for conversion. 
 (j) The Company shall not
issue any fractional share of Common Stock upon conversion of the Notes and shall instead pay cash in lieu of delivering any fractional share of Common Stock issuable upon conversion based on the Daily VWAP for the relevant Conversion Date (in the
case of Physical Settlement) or based on the Daily VWAP for the last Trading Day of the relevant Observation Period (in the case of Combination Settlement). For each Note surrendered for conversion, if the Company has elected (or is deemed to have
elected) Combination Settlement, the full number of shares that shall be issued upon conversion thereof shall be computed on the basis of the aggregate Daily Settlement Amounts for the relevant Observation Period and any fractional shares remaining
after such computation shall be paid in cash. 
 Section 14.03. Increased Conversion Rate Applicable to Certain Notes Surrendered in
Connection with Make-Whole Fundamental Changes or During a Redemption Period. (a) If (i) the Effective Date of a Make-Whole Fundamental Change occurs prior to the Maturity Date and a Holder elects to convert its Notes in connection
with such Make-Whole Fundamental Change, or (ii) the Company issues a Redemption Notice and a Holder elects to convert its Notes called (or deemed called) for redemption during the related Redemption Period, the Company shall, under the
circumstances described below, increase the Conversion Rate for the Notes so surrendered for conversion by a number of additional shares of Common Stock (the “Additional Shares”), as described below. A conversion of Notes shall be
deemed for these purposes to be “in connection with” such Make-Whole Fundamental Change if the relevant Conversion Date occurs 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 Repurchase Date (or, in the case of a Make-Whole Fundamental Change that would have been a Fundamental Change but for the proviso in
clause (b) of the definition thereof, the 35th Trading Day immediately following the Effective Date of such Make-Whole Fundamental Change) (such period, the “Make-Whole Fundamental Change Period”). For the avoidance of doubt,
if the Company elects to redeem less than all of the Outstanding Notes pursuant to Article 16, Holders of the Notes not called for redemption shall not be entitled to convert such Notes on account of the Redemption Notice and shall not be entitled
to an increased Conversion Rate for conversions of such Notes (on account of the Redemption Notice) during the applicable Redemption Period if such Notes are otherwise convertible, except pursuant to Section 14.01(b)(v). 

(b) Upon surrender of Notes for conversion in connection with a Make-Whole Fundamental Change or the surrender of Notes for conversion that
have been called (or deemed called) for redemption during the related Redemption Period, the Company shall, at its option, satisfy the related Conversion Obligation by Physical Settlement, Cash Settlement or Combination Settlement, in accordance
with Section 14.02; provided, however, that if, at the effective time of a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Reference Property following such Make-Whole
Fundamental Change 

  
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is composed entirely of cash, for any conversion of Notes following the Effective Date of such Make-Whole Fundamental Change, the Conversion Obligation shall be calculated based solely on the
Stock Price for the transaction and shall be deemed to be an amount of cash per $1,000 principal amount of converted Notes equal to the Conversion Rate (including any adjustment pursuant to this Section 14.03), multiplied by such Stock
Price. In such event, the Conversion Obligation shall be paid to Holders in cash on the second Business Day following the Conversion Date. The Company shall notify the Trustee, the Conversion Agent (if other than the Trustee) and the Holders of
Notes of the Effective Date of any Make-Whole Fundamental Change no later than five Business Days after such Effective Date. 
 (c) The
number of additional shares of Common Stock, if any, by which the Conversion Rate shall be increased shall be determined by reference to the table below, based on the date on which the Make-Whole Fundamental Change occurs or becomes effective (the
“Effective Date”) or the Redemption Notice Date, as applicable, and the price paid (or deemed to be paid) per share of the Common Stock in the Make-Whole Fundamental Change or on the Redemption Notice Date (the “Stock Price”). If
the holders of the Common Stock receive in exchange for their Common Stock only cash in a Make-Whole Fundamental Change described in clause (b) of the definition of Fundamental Change, the Stock Price shall be the cash amount paid per share.
Otherwise, the Stock Price shall be the average of the Last Reported Sale Prices of the Common Stock over the five consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Effective Date of the Make-Whole
Fundamental Change or the Redemption Notice Date, as the case may be. The Company shall make appropriate adjustments to the Stock Price, in its good faith determination, to account for any adjustment to the Conversion Rate that becomes effective, or
any event requiring an adjustment to the Conversion Rate where the Ex-Dividend Date, Effective Date (as such term is used in Section 14.04) or expiration date of the event occurs during such five
consecutive Trading Day period. In the event that a conversion of Notes called (or deemed called) for redemption during a Redemption Period would also be deemed to be in connection with a Make-Whole Fundamental Change, the converting Holder will be
entitled to a single increase to the Conversion Rate with respect to the first to occur of the applicable Redemption Notice Date or the Effective Date of the applicable Make-Whole Fundamental Change, and the later event will be deemed not to have
occurred for purposes of this Section 14.03. 
 (d) The Stock Prices set forth in the column headings of the table below shall be
adjusted as of any date on which the Conversion Rate of the Notes is otherwise adjusted. The adjusted Stock Prices shall equal the Stock Prices applicable immediately prior to such adjustment, multiplied by a fraction, the numerator of which
is the Conversion Rate immediately prior to such adjustment giving rise to the Stock Price adjustment and the denominator of which is the Conversion Rate as so adjusted. The number of additional shares of Common Stock by which the Conversion Rate
shall be increased as set forth in the table below shall be adjusted in the same manner and at the same time as the Conversion Rate as set forth in Section 14.04. 

(e) The following table sets forth the amount, if any, by which the Conversion Rate shall be increased per $1,000 principal amount of Notes
pursuant to this Section 14.03 for each Stock Price and Effective Date or Redemption Notice Date, as applicable: 

  
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	 	  	Stock Price	 
	 Effective date/redemption notice date
	  	$	55.14	 	  	$	60.00	 	  	$	71.68	 	  	$	80.00	 	  	$	93.19	 	  	$	125.00	 	  	$	150.00	 	  	$	175.00	 	  	$	200.00	 	  	$	225.00	 	  	$	250.00	 
	 June 14, 2022
	  	 	4.1851	 	  	 	3.4455	 	  	 	2.2285	 	  	 	1.6703	 	  	 	1.0879	 	  	 	0.4222	 	  	 	0.2057	 	  	 	0.0958	 	  	 	0.0384	 	  	 	0.0096	 	  	 	0.0000	 
	 June 15, 2023
	  	 	4.1851	 	  	 	3.3920	 	  	 	2.1235	 	  	 	1.5545	 	  	 	0.9763	 	  	 	0.3489	 	  	 	0.1590	 	  	 	0.0677	 	  	 	0.0229	 	  	 	0.0032	 	  	 	0.0000	 
	 June 15, 2024
	  	 	4.1851	 	  	 	3.3550	 	  	 	2.0046	 	  	 	1.4176	 	  	 	0.8434	 	  	 	0.2677	 	  	 	0.1113	 	  	 	0.0417	 	  	 	0.0103	 	  	 	0.0000	 	  	 	0.0000	 
	 June 15, 2025
	  	 	4.1851	 	  	 	3.2270	 	  	 	1.7785	 	  	 	1.1819	 	  	 	0.6377	 	  	 	0.1657	 	  	 	0.0597	 	  	 	0.0174	 	  	 	0.0014	 	  	 	0.0000	 	  	 	0.0000	 
	 June 15, 2026
	  	 	4.1851	 	  	 	2.9775	 	  	 	1.3684	 	  	 	0.7824	 	  	 	0.3354	 	  	 	0.0609	 	  	 	0.0179	 	  	 	0.0028	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 
	 June 15, 2027
	  	 	4.1851	 	  	 	2.7162	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 	  	 	0.0000	 

 The exact Stock Prices and Effective Date or Redemption Notice Date may not be set forth in the table above,
in which case: 
 (i) if the Stock Price is between two Stock Prices in the table above or the Effective Date or Redemption
Notice Date, as the case may be, is between two Effective Dates or Redemption Notice Dates, as applicable, in the table, the number of additional shares of Common Stock by which the Conversion Rate shall be increased shall be determined by a
straight-line interpolation between the number of additional shares of Common Stock set forth for the higher and lower Stock Prices and the earlier and later Effective Dates or Redemption Notice Dates, as applicable, based on a 365-day year; 
 (ii) if the Stock Price is greater than $250.00 per share (subject to
adjustment in the same manner as the Stock Prices set forth in the column headings of the table above pursuant to subsection (d) above), no additional shares of Common Stock will be added to the Conversion Rate; and 

(iii) if the Stock Price is less than $55.14 per share (subject to adjustment in the same manner as the Stock Prices set forth
in the column headings of the table above pursuant to subsection (d) above), no additional shares of Common Stock will be added to the Conversion Rate. 

Notwithstanding the foregoing, in no event shall the Conversion Rate per $1,000 principal amount of Notes exceed 18.1356 shares of Common Stock, subject to
adjustment in the same manner as the Conversion Rate pursuant to Section 14.04. 
 (f) Nothing in this Section 14.03 shall prevent
an adjustment to the Conversion Rate pursuant to Section 14.04 in respect of a Make-Whole Fundamental Change. 
 Section 14.04.
Adjustment of Conversion Rate. The Conversion Rate shall be adjusted from time to time by the Company if any of the following events occurs, except that the Company shall not make any adjustments to the Conversion Rate if Holders of the
Notes participate (other than in the case of (x) a share split or share combination or (y) 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 Notes, in
any of the transactions described in this Section 14.04, without having to convert their Notes, as if they held a number of shares of Common Stock equal to the Conversion Rate, multiplied by the principal amount (expressed in thousands)
of Notes held by such Holder. 

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

 
 



 
 where, 
  

					
	CR1	  	=	  	the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date of such dividend or distribution, or immediately prior to the open of business on the Effective
Date of such share split or share combination, as applicable;
			
	CR1	  	=	  	the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date or Effective Date, as applicable;
			
	OS1	  	=	  	the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-Dividend Date or Effective Date, as applicable, before giving effect to any such dividend,
distribution, share split or share combination, as the case may be; and
			
	OS1	  	=	  	the number of shares of Common Stock outstanding immediately after giving effect to such dividend, distribution, share split or share combination, as the case may be.

 Any adjustment made under this Section 14.04(a) shall become effective immediately after the open of business on the Ex-Dividend Date for such dividend or distribution, or immediately after the open of business on the Effective Date for such share split or share combination, as applicable. If any dividend or distribution of the
type described in this Section 14.04(a) is declared but not so paid or made, the Conversion Rate shall be immediately readjusted, effective as of the date the Board of Directors determines not to pay such dividend or distribution, to the
Conversion Rate that would then be in effect if such dividend or distribution had not been declared. 
 (b) If the Company issues to all or
substantially all holders of the Common Stock any rights, options or warrants (other than a distribution of rights pursuant to a stockholder rights plan) entitling them, for a period of not more than 45 calendar days after the announcement date
of such issuance, to subscribe for or purchase shares of the Common Stock at a price per share that is less than the average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period ending on, and including, the
Trading Day immediately preceding the date of announcement of such issuance, the Conversion Rate shall be increased based on the following formula: 

  
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 where, 
  

					
	CR1	  	=	  	the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such issuance;
			
	CR1	  	=	  	the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;
			
	OS1	  	=	  	the number of shares of Common Stock outstanding immediately prior to the open of business on such Ex-Dividend Date;
			
	X	  	=	  	the total number of shares of Common Stock issuable pursuant to such rights, options or warrants; and
			
	Y	  	=	  	the number of shares of Common Stock equal to the aggregate price payable to exercise such rights, options or warrants, divided by the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive
Trading Day period ending on, and including, the Trading Day immediately preceding the date of announcement of the issuance of such rights, options or warrants.

 Any increase made under this Section 14.04(b) shall be made successively whenever any such rights, options or warrants
are issued and shall become effective immediately after the open of business on the Ex-Dividend Date for such issuance. To the extent that such rights, options or warrants are not exercised prior to their
expiration or shares of the Common Stock are not delivered after the expiration of such rights, options or warrants, the Conversion Rate shall be decreased to the Conversion Rate that would then be in effect had the increase with respect to the
issuance of such rights, options or warrants been made on the basis of delivery of only the number of shares of Common Stock actually delivered. If such rights, options or warrants are not so issued, the Conversion Rate shall be decreased to the
Conversion Rate that would then be in effect if such Ex-Dividend Date for such issuance had not occurred. 

For purposes of this Section 14.04(b) and for the purpose of Section 14.01(b)(ii)(A), 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 less than such average of the Last Reported Sale Prices of the Common Stock for the 10 consecutive Trading Day period
ending on, and including, the Trading Day immediately preceding the date of announcement for such issuance, and in determining the aggregate offering price of such shares of Common Stock, there shall be taken into account any consideration received
by the Company for such rights, options or warrants and any amount payable on exercise or conversion thereof, the value of such consideration, if other than cash, to be determined by the Board of Directors. 

(c) If the Company distributes shares of its Capital Stock, evidences of its indebtedness, other assets or property of the Company or rights,
options or warrants to acquire 

  
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shares of its Capital Stock or other securities, to all or substantially all holders of the Common Stock, excluding (i) dividends, distributions or issuances (including share splits) as to
which an adjustment was effected (or will be so effected in accordance with Section 14.04(j)) pursuant to Section 14.04(a) or Section 14.04(b), (ii) dividends or distributions paid exclusively in cash as to which the provisions set
forth in Section 14.04(d) shall apply, (iii) except as otherwise provided in Section 14.11, rights issued pursuant to a stockholder rights plan of the Company, (iv) dividends or distributions of Reference Property in exchange for
or upon conversion of the Common Stock in connection with any Share Exchange Event, and (v) Spin-Offs as to which the provisions set forth below in this Section 14.04(c) shall apply (any of such shares of Capital Stock, evidences of
indebtedness, other assets or property or rights, options or warrants to acquire Capital Stock or other securities, the “Distributed Property”), then the Conversion Rate shall be increased based on the following formula: 

 
 



 
 where, 
  

					
	CR1	  	=	  	the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such distribution;
			
	CR1	  	=	  	the Conversion Rate in effect immediately after the open of business on such Ex-Dividend Date;
			
	SP1	  	=	  	the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending on, and including, the Trading Day immediately preceding the Ex-Dividend Date
for such distribution; and
			
	FMV	  	=	  	the fair market value (as determined by the Board of Directors) of the Distributed Property with respect to each outstanding share of the Common Stock on the Ex-Dividend Date for such
distribution.

 Any increase made under the portion of this Section 14.04(c) above shall become effective immediately after the open of
business on the Ex-Dividend Date for such distribution. If such distribution is not so paid or made, the Conversion Rate shall be decreased to 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), in lieu of the foregoing
increase, each Holder of a Note shall receive, in respect of each $1,000 principal amount thereof, at the same time and upon the same terms as holders of the Common Stock receive the Distributed Property, the amount and kind of Distributed Property
such Holder would have received if such Holder owned a number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend Date for the distribution. If the Board of Directors determines
the “FMV” (as defined above) of any distribution for purposes of this Section 14.04(c) by reference to the actual or when-issued trading market for any securities, it shall in doing so consider the prices in such market over the same
period used in computing the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period ending 

  
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on, and including, the Trading Day immediately preceding the Ex-Dividend Date for such distribution. 

With respect to an adjustment pursuant to this Section 14.04(c) where there has been a payment of a dividend or other distribution on the
Common Stock of shares of Capital Stock of any class or series, or similar equity interest, of or relating to a Subsidiary or other business unit of the Company, that are, or, when issued, will be, listed or admitted for trading on a U.S. national
securities exchange (a “Spin-Off”), the Conversion Rate shall be increased based on the following formula: 
  





 
 where, 
  

					
	CR1	  	=	  	the Conversion Rate in effect immediately prior to the end of the Valuation Period;
			
	CR1	  	=	  	the Conversion Rate in effect immediately after the end 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 the Common Stock applicable to one share of the Common Stock (determined by reference to the definition of Last
Reported Sale Price as set forth in Section 1.01 as if references therein to Common Stock were to such Capital Stock or similar equity interest) over the first 10 consecutive Trading Day period after, and including, the Ex-Dividend Date of the Spin-Off (the “Valuation Period”); provided, that if there is no Last Reported Sale Price of the Capital Stock or similar equity
interest distributed to holders of the Common Stock on such Ex-Dividend Date, the “Valuation Period” shall be the first 10 consecutive Trading Day period after, and including, the first date such
Last Reported Sale Price is available; and
			
	MP0	  	=	  	the average of the Last Reported Sale Prices of the Common Stock over the Valuation Period.

 The increase to the Conversion Rate under the preceding paragraph shall occur at the close of business on the
last Trading Day of the Valuation Period; provided that (x) in respect of any conversion of Notes for which Physical Settlement is applicable, if the relevant Conversion Date occurs during the Valuation Period, the reference in the portion of
this Section 14.04(c) related to Spin-Offs to “10” shall be deemed replaced with such lesser number of Trading Days as have elapsed between the Ex-Dividend Date for such Spin-Off and such Conversion Date in determining the Conversion Rate and (y) in respect of any conversion of Notes for which Cash Settlement or Combination Settlement is applicable, for any Trading Day that
falls within the relevant Observation Period for such conversion and within the Valuation Period, the reference in the portion of this Section 14.04(c) related to Spin-Offs to 10 shall be deemed replaced with such lesser number of Trading Days
as have elapsed between the Ex-Dividend Date for such Spin-Off and such Trading Day in determining the Conversion Rate as of such Trading Day of


  
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such Observation Period. If any dividend or distribution that constitutes a Spin-Off is declared but not so paid or made, the Conversion Rate shall be
immediately decreased, effective as of the date the Board of Directors determines not to pay or make such dividend or distribution, to the Conversion Rate that would then be in effect if such dividend or distribution had not been declared or
announced. 
 For purposes of this Section 14.04(c) (and subject in all respects to Section 14.11), 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, including Common Stock (either initially or under certain circumstances), which rights, options or
warrants, until the occurrence of a specified event or events (“Trigger Event”): (i) are deemed to be transferred with such shares of the 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 14.04(c) (and no adjustment to the Conversion Rate under this Section 14.04(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 14.04(c). 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 Ex-Dividend Date with respect to new rights,
options or warrants with such rights (in which case the existing rights, options or warrants shall be deemed to terminate and expire on such date 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 immediately 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 14.04(c) was made, (1) in the case of any such rights, options or warrants that 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 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 purchase, 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 and warrants had not been issued. 

For purposes of Section 14.04(a), Section 14.04(b) and this Section 14.04(c), if any dividend or distribution to which this
Section 14.04(c) is applicable also includes one or both of: 
 (A) a dividend or distribution of shares of Common Stock to which
Section 14.04(a) is applicable (the “Clause A Distribution”); or 

  
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 (B) a dividend or distribution of rights, options or warrants to which Section 14.04(b)
is applicable (the “Clause B Distribution”), 
 then, in either case, (1) 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 14.04(c) is applicable (the “Clause C Distribution”) and any Conversion Rate adjustment required by this
Section 14.04(c) with respect to such Clause C Distribution shall then be made, and (2) the Clause A Distribution and Clause B Distribution shall be deemed to immediately follow the Clause C Distribution and any Conversion Rate adjustment
required by Section 14.04(a) and Section 14.04(b) with respect thereto shall then be made, except that, if determined by the Company (I) the “Ex-Dividend Date” of the Clause A
Distribution and the Clause B Distribution shall be deemed to be the Ex-Dividend Date of the Clause C Distribution and (II) any shares of Common Stock included in the Clause A Distribution or Clause B
Distribution shall be deemed not to be “outstanding immediately prior to the open of business on such Ex-Dividend Date or Effective Date” within the meaning of Section 14.04(a) or
“outstanding immediately prior to the open of business on such Ex-Dividend Date” within the meaning of Section 14.04(b). 

(d) If the Company pays or makes any cash dividend or distribution to all or substantially all holders of the Common Stock, the Conversion Rate
shall be adjusted based on the following formula: 
  
 



 
 where, 
  

					
	CR1	  	=	  	the Conversion Rate in effect immediately prior to the open of business on the Ex-Dividend Date for such dividend or distribution;
			
	CR1	  	=	  	the Conversion Rate in effect immediately after the open of business on the Ex-Dividend Date for such dividend or distribution;
			
	SP1	  	=	  	the Last Reported Sale Price of the Common Stock on the Trading Day immediately preceding the Ex-Dividend Date for such dividend or distribution; and
			
	C	  	=	  	the amount in cash per share the Company distributes to all or substantially all holders of the Common Stock.

 Any increase to the Conversion Rate pursuant to this Section 14.04(d) shall become effective immediately after the open
of business on the Ex-Dividend Date for such dividend or distribution. If such dividend or distribution is not so paid, the Conversion Rate shall be decreased, effective as of the date the Board of Directors
determines not to make or pay such dividend or distribution, to be the Conversion Rate that would then be in effect if such dividend or distribution had not been declared. Notwithstanding the foregoing, if “C” (as defined above) is equal
to or greater than “SP0” (as defined above), in lieu of the foregoing increase, each 

  
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Holder of a Note shall receive, for each $1,000 principal amount of Notes 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 owned a number of shares of Common Stock equal to the Conversion Rate in effect on the Ex-Dividend 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 that is subject to
the then-applicable tender offer rules under the Exchange Act (other than an odd lot tender offer pursuant to Rule 13e-4(h)(5) under the Exchange Act), 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, the Conversion Rate shall be increased based on the following formula: 
  





 
 where, 
  

					
	CR1	  	=	  	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 date such tender or exchange offer expires (the date such
tender or exchange offer expires, the “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 expiration date;
			
	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;
			
	OS1	  	=	  	the number of shares of Common Stock outstanding immediately prior to the expiration date (prior to giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or exchange
offer);
			
	OS1	  	=	  	the number of shares of Common Stock outstanding immediately after the expiration date (after giving effect to the purchase of all shares of Common Stock accepted for purchase or exchange in such tender or exchange offer);
and
			
	SP1	  	=	  	the average of the Last Reported Sale Prices of the Common Stock over the 10 consecutive Trading Day period commencing on, and including, the Trading Day next succeeding the expiration date.


  
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 The increase to the Conversion Rate under this Section 14.04(e) shall occur at the
close of business on the 10th Trading Day immediately following, and including, the Trading Day next succeeding the expiration date; provided that (x) in respect of any conversion of Notes for which Physical Settlement is applicable, if the
relevant Conversion Date occurs during the 10 Trading Days immediately following, and including, the Trading Day next succeeding the expiration date, references to “10” or “10th” in the preceding paragraph shall be deemed
replaced with such lesser number of Trading Days as have elapsed from, and including, the Trading Day next succeeding such expiration date of such tender or exchange offer to, and including, such Conversion Date in determining the Conversion Rate
and (y) in respect of any conversion of Notes for which Cash Settlement or Combination Settlement is applicable, for any Trading Day that falls within the relevant Observation Period for such conversion and within the 10 Trading Days
immediately following, and including, the Trading Day next succeeding the expiration date, references in this Section 14.04(e) to “10” or “10th” shall be deemed replaced with such lesser number of Trading Days as have
elapsed from, and including, the Trading Day next succeeding such expiration date of such tender or exchange offer and such Trading Day in determining the Conversion Rate as of such Trading Day. 

In the event that the Company or one of the Company’s Subsidiaries is obligated to purchase shares of Common Stock pursuant to any such
tender offer or exchange offer described in this Section 14.04(e), but the Company or such Subsidiary is permanently prevented by applicable law from consummating any such purchases, or all such purchases are rescinded, then the Conversion Rate
shall be decreased to be the Conversion Rate that would then be in effect if such tender offer or exchange offer had not been made or had been made only in respect of the purchases that have been consummated, as the case may be. 

(f) Notwithstanding this Section 14.04 or any other provision of this Indenture or the Notes, if a Conversion Rate adjustment becomes
effective on any Ex-Dividend Date, and a Holder that has converted its Notes on or after such Ex-Dividend Date and on or prior to the related Record Date would be
treated as the record holder of the shares of Common Stock as of the related Conversion Date as described under Section 14.02(i) based on an adjusted Conversion Rate for such Ex-Dividend Date, then,
notwithstanding the Conversion Rate adjustment provisions in this Section 14.04, the Conversion Rate adjustment relating to such Ex-Dividend Date shall not be made for such converting Holder. Instead,
such Holder shall be treated as if such Holder were the record owner of the shares of Common Stock on an unadjusted basis and participate in the related dividend, distribution or other event giving rise to such adjustment. 

(g) Except as stated herein, the Company shall not adjust the Conversion Rate for the issuance of shares of the Common Stock or any securities
convertible into or exchangeable for shares of the Common Stock or the right to purchase shares of the Common Stock or such convertible or exchangeable securities. 

(h) In addition to those adjustments required by clauses (a), (b), (c), (d) and (e) of this Section 14.04, and to the extent
permitted by applicable law and subject to the applicable listing standards of The Nasdaq Global Select Market, the Company from time to time may increase the Conversion Rate by any amount for a period of at least 20 Business Days if the Board of
Directors determines that such increase would be in the Company’s best interest. In addition, to 

  
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the extent permitted by applicable law and subject to the applicable listing standards of The Nasdaq Global Select Market, the Company may (but is not required to) increase the Conversion Rate to
avoid or diminish any income tax to holders of Common Stock or rights to purchase Common Stock in connection with a dividend or distribution of shares of Common Stock (or rights to acquire shares of Common Stock) or similar event. Whenever the
Conversion Rate is increased pursuant to either of the preceding two sentences, the Company shall mail to the Holder of each Note at its last address appearing on the Security Register, the Trustee and the Conversion Agent (if other than the
Trustee) a notice of the increase at least 15 days prior to the date the increased Conversion Rate takes effect, and such notice shall state the increased Conversion Rate and the period during which it will be in effect. 

(i) Notwithstanding anything to the contrary in this Article 14 and except as specifically stated herein, 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 Common Stock or such convertible or exchangeable securities. For example, the
Conversion Rate shall not be adjusted: 
 (i) upon the issuance of any shares of Common Stock pursuant to any present or
future plan providing for the reinvestment of dividends or interest payable on the Company’s securities and the investment of additional optional amounts in shares of Common Stock under any plan; 

(ii) upon the issuance of any shares of Common Stock or options or rights to purchase those shares pursuant to any present or
future employee, director or consultant benefit plan or program of or assumed by the Company or any of the Company’s Subsidiaries (other than a rights plan as described in Section 14.11); 

(iii) upon the issuance of any shares of the Common Stock pursuant to any option, warrant, right or exercisable, exchangeable
or convertible security not described in clause (ii) of this subsection and outstanding as of the date the Notes were first issued; 

(iv) upon the repurchase of any shares of Common Stock pursuant to an open-market share repurchase program or other buy-back transaction (including, without limitation, through any structured or derivative transactions, such as accelerated share repurchase derivatives) that is not a tender offer or exchange offer of the nature
described in Section 14.04(e); 
 (v) solely for a change in the par value of the Common Stock; or 

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

(j) All calculations and other determinations under this Article 14 shall be made by the Company and shall be made to the nearest one-ten thousandth (1/10,000th) of a share. If an adjustment to the Conversion Rate otherwise required by this Section 14.04 would result in a change of less than 1% to the Conversion Rate, then,
notwithstanding anything to the contrary in this Section 14.04, the Company may, at its election, defer and carry forward such adjustment, except that all such deferred adjustments must be given effect immediately upon the earliest to


  
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occur of the following: (i) when all such deferred adjustments would result in an aggregate change of at least 1% to the Conversion Rate; (ii) the Conversion Date of (if Physical
Settlement applies to such conversion), or each Trading Day of the applicable Observation Period for (if Cash Settlement or Combination Settlement applies to such conversion), any Note; (iii) the date a Fundamental Change or Make-Whole
Fundamental Change occurs; (iv) on any date on which the Company delivers a Redemption Notice; and (v) December 15, 2026. 

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

(l) For purposes of this Section 14.04, the number of shares of Common Stock at any time outstanding shall not include shares of Common
Stock 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 of Common Stock issuable in respect of scrip
certificates issued in lieu of fractions of shares of Common Stock. 
 Section 14.05. Adjustments of Prices. Whenever any
provision of this Indenture requires the Company to calculate the Last Reported Sale Prices, the Daily VWAPs, the Daily Conversion Values or the Daily Settlement Amounts over a span of multiple days (including, without limitation, an Observation
Period and the period, if any, for determining the Stock Price for purposes of a Make-Whole Fundamental Change or conversion during a Redemption Period), the Company shall, in good faith, 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, Effective Date (as such term is used in Section 14.04) or
expiration date of the event occurs at any time during the period when such Last Reported Sale Prices, Daily VWAPs, Daily Conversion Values or Daily Settlement Amounts are to be calculated. 

Section 14.06. Shares to Be Fully Paid. The Company shall provide, free from preemptive rights, out of its authorized but
unissued shares or shares held in treasury, sufficient shares of Common Stock to provide for conversion of the Notes from time to time as such Notes are presented for conversion (assuming (x) that at the time of computation of such number of
shares, all such Notes would be converted by a single Holder and that Physical Settlement is applicable and (y) the delivery of the maximum number of shares of Common Stock, including the maximum Conversion Rate increase pursuant to
Section 14.03). 

  
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 Section 14.07. Effect of Recapitalizations, Reclassifications and Changes of the
Common Stock. 
 (a) In the case of: 

(i) any recapitalization, reclassification or change of the Common Stock (other than changes in par value or resulting from a
subdivision or combination), 
 (ii) any consolidation, merger or combination involving the Company, 

(iii) any sale, conveyance, transfer or lease of all or substantially all of the Company and the Company’s
Subsidiaries’ consolidated property and assets, taken as a whole, to another Person or 
 (iv) any statutory share
exchange, 
 in each case, as a result of which the Common Stock would be converted into, or exchanged for, stock, other securities, other property or
assets (including cash or any combination thereof) (any such event, a “Share Exchange Event”), then, at and after the effective time of such Share Exchange Event, the right to convert each $1,000 principal amount of Notes shall be
changed into a right to convert such principal amount of Notes into the kind and amount of shares of stock, other securities or other property or assets (including cash or any combination thereof) that a holder of a number of shares of Common Stock
equal to the Conversion Rate immediately prior to such Share Exchange Event would have owned or been entitled to receive (the “Reference Property,” with each “unit of Reference Property” meaning the kind and amount
of Reference Property that a holder of one share of Common Stock is entitled to receive) upon such Share Exchange Event and, prior to or at the effective time of such Share Exchange Event, the Company or the successor or acquiring corporation, as
the case may be, shall execute with the Trustee a supplemental indenture permitted under Section 10.01(k) providing for such change in the right to convert each $1,000 principal amount of Notes; provided, however, that at and after the
effective time of the Share Exchange Event (A) the Company or the successor or acquiring corporation, as the case may be, shall continue to have the right to determine the form of consideration to be paid or delivered, as the case may be, upon
conversion of Notes in accordance with Section 14.02 and (B) (I) any amount payable in cash upon conversion of the Notes in accordance with Section 14.02 shall continue to be payable in cash, (II) any shares of Common Stock that
the Company would have been required to deliver upon conversion of the Notes in accordance with Section 14.02 shall instead be deliverable in the amount and type of Reference Property that a holder of that number of shares of Common Stock would
have been entitled to receive in such Share Exchange Event and (III) the Daily VWAP shall be calculated based on the value of a unit of Reference Property. 

If the Share Exchange Event causes the Common Stock to be converted into, or exchanged for, the right to receive more than a single type of
consideration (determined based in part upon any form of stockholder election), then (i) the Reference Property into which the Notes will be convertible shall be deemed to be the weighted average of the types and amounts of consideration
actually received by the holders of Common Stock, and (ii) the unit of Reference Property for purposes of the immediately preceding paragraph shall refer to the consideration 

  
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referred to in clause (i) attributable to one share of Common Stock. If the holders of the Common Stock receive only cash in such Share Exchange Event, then for all conversions for which the
relevant Conversion Date occurs after the effective date of such Share Exchange Event (A) the consideration due upon conversion of each $1,000 principal amount of Notes shall be solely cash in an amount equal to the Conversion Rate in effect on
the Conversion Date (as may be increased pursuant to Section 14.03), multiplied by the price paid per share of Common Stock in such Share Exchange Event and (B) the Company shall satisfy the Conversion Obligation by paying such cash amount
to converting Holders on the second Business Day immediately following the relevant Conversion Date. The Company shall notify Holders, the Trustee and the Conversion Agent (if other than the Trustee) of such weighted average of the types and amounts
of consideration received by the holders of the Common Stock as soon as reasonably practicable after such determination is made. 
 The
supplemental indenture described in the second immediately preceding paragraph shall provide for anti-dilution and other adjustments that shall be as nearly equivalent as is possible to the adjustments provided for in this Article 14. If, in the
case of any Share Exchange Event, the Reference Property includes shares of stock, securities or other property or assets (other than cash and/or cash equivalents) of a Person other than the Company or the successor or purchasing company, as the
case may be, in such Share Exchange 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 Notes as the Board of Directors
shall reasonably consider necessary by reason of the foregoing, including the provisions providing for the purchase rights set forth in Article 15. 

(b) When the Company or the successor or acquiring corporation, as applicable, executes a supplemental indenture pursuant to subsection
(a) of this Section 14.07, the Company or the successor or acquiring corporation, as applicable, shall promptly file with the Trustee an Officer’s Certificate briefly stating the reasons therefor, the kind or amount of cash,
securities or property or asset that will comprise a unit of Reference Property after any such Share Exchange Event, any adjustment to be made with respect thereto and that all conditions precedent have been complied with, and shall promptly mail
notice thereof to all Holders. The Company or the successor or acquiring corporation, as applicable, shall cause notice of the execution of such supplemental indenture to be mailed to each Holder, at its address appearing on the Security Register
provided for in this Indenture, within 20 days after execution thereof. Failure to deliver such notice shall not affect the legality or validity of such supplemental indenture. 

(c) The Company shall not become a party to any Share Exchange Event unless its terms are consistent with this Section 14.07. None of the
foregoing provisions shall affect the right of a Holder of Notes to convert its Notes into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, as set forth in Section 14.01 and Section 14.02
prior to the effective date of such Share Exchange Event. 
 (d) The above provisions of this Section shall similarly apply to successive
Share Exchange Events. 

  
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 Section 14.08. Certain Covenants. (a) The Company covenants that all
shares of Common Stock issued upon conversion of Notes will be fully paid and non-assessable by the Company and free from all taxes, liens, charges and preemptive rights with respect to the issue thereof. 

(b) The Company covenants that, if any shares of Common Stock to be provided for the purpose of conversion of Notes hereunder require
registration with or approval of any governmental authority under any federal or state law before such shares of Common Stock may be validly issued upon conversion, the Company will, to the extent then permitted by the rules and interpretations of
the Commission, secure such registration or approval, as the case may be. 
 (c) The Company further covenants that if at any time the Common
Stock shall be listed on any national securities exchange or automated quotation system the Company will list and keep listed, so long as the Common Stock shall be so listed on such exchange or automated quotation system, any Common Stock issuable
upon conversion of the Notes. 
 Section 14.09. Responsibility of Trustee. The Trustee and any other Conversion Agent
shall not at any time be under any duty or responsibility to any Holder to determine the Conversion Rate (or any adjustment thereto) or whether any facts exist that may require any adjustment (including any increase) of the Conversion Rate, or with
respect to the nature or extent or calculation of any such adjustment when made, or with respect to the method employed, or herein or in any supplemental indenture provided to be employed, in making the same. The Trustee and any other Conversion
Agent shall not be accountable with respect to the validity or value (or the kind or amount) of any shares of Common Stock, or of any securities, property or cash that may at any time be issued or delivered upon the conversion of any Note; and the
Trustee and any other Conversion Agent make no representations with respect thereto. Neither the Trustee nor any Conversion Agent shall be responsible for any failure of the Company to issue, transfer or deliver any shares of Common Stock or stock
certificates or other securities or property or cash upon the surrender of any Note for the purpose of conversion or to comply with any of the duties, responsibilities or covenants of the Company contained in this Article. Neither the Trustee nor
any other Conversion Agent shall have any duty or responsibility whatsoever to determine compliance with the conversion procedures, or to make or confirm any calculations with respect to the settlement provisions, of Section 14.02. 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 14.07 relating either to the kind or amount of shares of stock or securities or property (including cash) receivable by Holders upon the conversion of their Notes after any event referred to in such Section 14.07 or to any
adjustment to be made with respect thereto, but, subject to the provisions of Section 7.01, may accept (without any independent investigation) as conclusive evidence of the correctness of any such provisions, and shall be protected in
conclusively relying upon, the Officer’s Certificate (which the Company shall be obligated to file with the Trustee prior to the execution of any such supplemental indenture) with respect thereto. Neither the Trustee nor the Conversion Agent
shall be responsible for determining whether any event contemplated by Section 14.01(b) has occurred that makes the Notes eligible for conversion or no longer eligible therefor until the Company has delivered to the Trustee and the Conversion
Agent the notices referred to in Section 14.01(b) 

  
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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 14.01(b). The rights, benefits and privileges of the Trustee set forth in this
Indenture shall be applicable to the Conversion Agent, and the provisions set forth in Section 7.01 of this Indenture relating to the Trustee shall apply to the Conversion Agent. 

Section 14.10. Notice to Holders Prior to Certain Actions. In case of any: 

(a) action by the Company or one of its Subsidiaries that would require an adjustment in the Conversion Rate pursuant to Section 14.04 or
Section 14.11; 
 (b) Share Exchange Event; or 

(c) voluntary or involuntary dissolution, liquidation or winding-up of the Company; 

then, in each case (unless notice of such event is otherwise required pursuant to another provision of this Indenture) and to the extent applicable, the
Company shall cause to be filed with the Trustee and the Conversion Agent (if other than the Trustee) and to be delivered to each Holder, a notice stating the date on which a record is to be taken for the purpose of such action by the Company or one
of its Subsidiaries or, if a record is not to be taken, the date as of which the holders of Common Stock of record are to be determined for the purposes of such action by the Company or one of its Subsidiaries no later than the earlier of the date
notice of such date is required to be provided under Rule 10b-17 of the Exchange Act, other applicable Commission rule or applicable rules of the principal U.S. national or regional securities exchange on
which the Common Stock is then listed or admitted for trading and such date is publicly announced by the Company. Failure to give such notice, or any defect therein, shall not affect the legality or validity of such action by the Company or one of
its Subsidiaries, Share Exchange Event, dissolution, liquidation or winding-up. 

Section 14.11. Stockholder Rights Plans. If the Company has a stockholder rights plan in effect upon conversion of the
Notes, each share of Common Stock, if any, issued upon such conversion shall be entitled to receive the appropriate number of rights, if any, and the certificates representing the Common Stock issued upon such conversion shall bear such legends, if
any, in each case as may be provided by the terms of any such stockholder rights plan, as the same may be amended from time to time. However, if, prior to any conversion of Notes, the rights have separated from the shares of Common Stock in
accordance with the provisions of the applicable stockholder rights plan, the Conversion Rate shall be adjusted at the time of separation as if the Company distributed to all or substantially all holders of the Common Stock Distributed Property as
provided in Section 14.04(c), subject to readjustment in the event of the expiration, termination or redemption of such rights. 

Section 14.12. Exchange in Lieu of Conversion. Notwithstanding anything herein to the contrary, when a Holder surrenders
Notes for conversion, the Company may, at its election, direct the Conversion Agent to surrender, on or prior to the Trading Day immediately following the Conversion Date, such Notes to one or more financial institution designated by the Company


  
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for exchange in lieu of conversion (an “Exchange Election”). To accept any Notes surrendered for conversion, the designated financial institution must agree to timely pay and/or
deliver, as the case may be, in exchange for such Notes, the cash, shares of Common Stock, or combination thereof that would otherwise be due upon conversion (the “conversion consideration”) at the time and in the manner provided in
this Article 14. If the Company makes an Exchange Election, the Company shall, by the close of business on the Trading Day following the relevant Conversion Date, notify in writing the Trustee, the Conversion Agent (if other than the Trustee) and
the Holder surrendering Notes for conversion that the Company has made the Exchange Election and the Company shall notify the designated financial institution of the Settlement Method the Company has elected with respect to such conversion and the
relevant deadline for the delivery of the conversion consideration. The Conversion Agent shall be entitled to conclusively rely upon the Company’s instruction with respect to effecting any Exchange Election and shall have no liability for such
Exchange Election outside its control. 
 Any Notes exchanged by the designated financial institution shall remain Outstanding, subject to
applicable procedures of the Depositary. If the designated financial institution agrees to accept any Notes for exchange but does not timely pay and/or deliver, as the case may be, the related conversion consideration, or if such designated
financial institution does not accept the Notes for exchange, the Company shall notify the Conversion Agent and the Holders surrendering the Notes for conversion and the Company shall pay and/or deliver, as the case may be, the relevant conversion
consideration, at the time and in the manner provided in this Article 14 as if the Company had not made an Exchange Election. 
 The
Company’s designation of a financial institution to which Notes may be submitted for exchange does not require the financial institution to accept any Notes. 

ARTICLE 15 

REPURCHASE OF NOTES AT OPTION OF
HOLDERS 
 Section 15.01. [Intentionally Omitted].  

Section 15.02. 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, at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes, or any portion thereof that is equal to $1,000 or an integral
multiple of $1,000, on the date (the “Fundamental Change Repurchase Date”) specified by the Company that is not less than 20 Business Days or more than 35 Business Days following the date of the Fundamental Change Company Notice,
subject to postponement to comply with applicable law as a result of changes to such applicable law occurring after the date hereof, at a repurchase price equal to 100% of the principal amount thereof, plus accrued and unpaid interest thereon to,
but excluding, the Fundamental Change Repurchase Date (the “Fundamental Change Repurchase Price”), unless the Fundamental Change Repurchase Date falls after a Regular Record Date but on or prior to the Interest Payment Date to which
such Regular Record Date relates, in which case the Company shall instead pay the full amount of accrued and unpaid interest to the Holders of record as of such Regular Record Date, and the Fundamental Change Repurchase Price shall be equal to 100%
of the principal amount of Notes to be repurchased pursuant to this Article 15. 

  
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 (b) Repurchases of Notes under this Section 15.02 shall be made, at the option of the
Holder thereof, upon: 
 (i) delivery to the Paying Agent appointed to facilitate the repurchase by a Holder of a duly
completed notice (the “Fundamental Change Repurchase Notice”) in the form set forth in Attachment 2 to the Form of Note attached hereto as Exhibit A, if the Notes are Physical Notes, or in compliance with the Depositary’s
procedures for surrendering interests in Global Notes, if the Notes are Global Notes, in each case prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date, subject to postponement to comply
with applicable law; and 
 (ii) delivery of the Notes, if the Notes are Physical Notes, to the Paying Agent appointed to
facilitate the repurchase at any time after delivery of the Fundamental Change Repurchase Notice (together with all necessary endorsements for transfer) at the office of the Paying Agent, or book-entry transfer of the Notes, if the Notes are Global
Notes, in compliance with the procedures of the Depositary, in each case such delivery being a condition to receipt by the Holder of the Fundamental Change Repurchase Price therefor. 

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

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

(ii) the portion of the principal amount of Notes to be repurchased, which must be $1,000 or an integral multiple thereof; and

 (iii) that the Notes are to be repurchased by the Company pursuant to the applicable provisions of the Notes and this
Indenture; 
 provided, however, that if the Notes are Global Notes, the Fundamental Change Repurchase Notice must comply with appropriate
Depositary procedures. 
 Notwithstanding anything herein to the contrary, any Holder delivering to the Paying Agent the Fundamental Change
Repurchase Notice contemplated by this Section 15.02 shall have the right to withdraw, in whole or in part, such Fundamental Change Repurchase Notice at any time prior to the close of business on the Business Day immediately preceding the
Fundamental Change Repurchase Date by delivery of a written notice of withdrawal received by the Paying Agent in accordance with Section 15.03. 

The Paying Agent shall promptly notify the Company of the receipt by it of any Fundamental Change Repurchase Notice or written notice of
withdrawal thereof. 
 (c) On or before the 20th calendar day after the occurrence of the effective date of a Fundamental Change, the Company
shall provide to all Holders of Notes, the Trustee, the Conversion Agent (if other than the Trustee) and the Paying Agent (in the case of a Paying 

  
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Agent other than the Trustee) a written notice (the “Fundamental Change Company Notice”) of the occurrence of the effective date of the Fundamental Change and of the repurchase
right at the option of the Holders arising as a result thereof. In the case of Physical Notes, such notice shall be by first class mail or, in the case of Global Notes, such notice shall be delivered in accordance with the applicable procedures of
the Depositary. Each Fundamental Change Company Notice shall specify: 
 (i) the events causing the Fundamental Change; 

(ii) the effective date of the Fundamental Change; 

(iii) the last date on which a Holder may exercise the repurchase right pursuant to this Article 15; 

(iv) the Fundamental Change Repurchase Price; 

(v) the Fundamental Change Repurchase Date; 

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

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

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

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

Simultaneously with providing the Fundamental Change Company Notice, the Company will publish the information on its website, through a press
release, or through such other public medium as the Company may use at that time. 
 No failure of the Company to give the foregoing notices
and no defect therein shall limit the Holders’ repurchase rights or affect the validity of the proceedings for the repurchase of the Notes pursuant to this Section 15.02. 

At the Company’s request, given at least five (5) Business Days before the date such Fundamental Change Company Notice must be sent
(or such shorter period as shall be acceptable to the Trustee), the Trustee shall give such notice in the Company’s name and at the Company’s expense; provided, however, that, in all cases, the text of such Fundamental Change Company
Notice shall be prepared by the Company. 

  
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 (d) Notwithstanding the foregoing, no Notes may be repurchased by the Company on any date at
the option of the Holders upon a Fundamental Change if the principal amount of the Notes has been accelerated, and such acceleration has not been rescinded, on or prior to such date (except in the case of an acceleration resulting from a Default by
the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes). The Paying Agent will promptly return to the respective Holders thereof any Physical Notes held by it during the acceleration of the Notes (except in
the case of an acceleration resulting from a Default by the Company in the payment of the Fundamental Change Repurchase Price with respect to such Notes), or any instructions for book-entry transfer of the Notes in compliance with the procedures of
the Depositary shall be deemed to have been cancelled, and, upon such return or cancellation, as the case may be, the Fundamental Change Repurchase Notice with respect thereto shall be deemed to have been withdrawn. 

(e) Notwithstanding the foregoing, the Company shall not be required to purchase or make an offer to purchase any 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 as set forth in this Article 15, 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 as set forth in this Article 15. 

(f) To the extent that, as a result of a change in laws or regulations occurring after the date of this Indenture, the provisions of any
securities laws or regulations conflict with the provisions of this Article 15, the Company shall comply with applicable securities laws and regulations and shall not be deemed to have breached its obligations under such provisions of this Article
15 by virtue of such conflict. 
 Section 15.03. Withdrawal of Fundamental Change Repurchase Notice. (a) A
Fundamental Change Repurchase Notice may be withdrawn (in whole or in part) by means of a written notice of withdrawal delivered to the Corporate Trust Office of the Paying Agent in accordance with this Section 15.03 at any time prior to the
close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date, specifying: 
 (i) the
principal amount of the Notes with respect to which such notice of withdrawal is being submitted, which portion must be in principal amounts of $1,000 or an integral multiple of $1,000, 

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

  
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 Section 15.04. Deposit of Fundamental Change Repurchase Price.
(a) The Company shall deposit with the Trustee (or other Paying Agent appointed by the Company, or if the Company is acting as its own Paying Agent, set aside, segregate and hold in trust as provided in Section 4.04) on or prior to 11:00
a.m., New York City time, on the Fundamental Change Repurchase Date an amount of money sufficient to repurchase all of the Notes to be repurchased at the appropriate Fundamental Change Repurchase Price. Subject to receipt of funds and/or Notes by
the Trustee (or other Paying Agent appointed by the Company), payment for Notes surrendered for repurchase (and not withdrawn prior to the close of business on the Business Day immediately preceding the Fundamental Change Repurchase Date) will be
made on the later of (i) the Fundamental Change Repurchase Date (provided the Holder has satisfied the conditions in Section 15.02) and (ii) the time of book-entry transfer or the delivery of such Note to the Trustee (or other Paying
Agent appointed by the Company) by the Holder thereof in the manner required by Section 15.02 by mailing checks for the amount payable to the Holders of such Notes entitled thereto as they shall appear in the Security Register; provided,
however, that payments to the Depositary shall be made by wire transfer of immediately available funds to the account of the Depositary or its nominee. The Trustee shall, promptly after such payment and upon written demand by the Company, return to
the Company any funds in excess of the Fundamental Change Repurchase Price. 
 (b) If by 11:00 a.m. New York City time, on the Fundamental
Change Repurchase Date, the Trustee (or other Paying Agent appointed by the Company) holds money sufficient to make payment on all the Notes or portions thereof that are to be repurchased on such Fundamental Change Repurchase Date, then, with
respect to the Notes that have been properly surrendered for repurchase and have not been validly withdrawn, (i) such Notes shall cease to be Outstanding, (ii) interest shall cease to accrue on such Notes (whether or not book-entry
transfer of the Notes has been made or the Notes have been delivered to the Trustee or Paying Agent) and (iii) all other rights of the Holders of such Notes shall terminate (other than the right to receive the Fundamental Change Repurchase
Price). 
 (c) Upon surrender of a Physical Note that is to be repurchased in part pursuant to Section 15.02, the Company shall execute
and upon Company Order the Trustee shall authenticate and deliver to the Holder a new Note in an authorized denomination equal in principal amount to the unrepurchased portion of the Note surrendered. 

Section 15.05. Covenant to Comply with Applicable Laws Upon Repurchase of Notes. In connection with any repurchase offer, the
Company shall, if required by applicable law: 
 (a) comply with the provisions of Rule 13e-4, Rule 14e-1 and any other applicable tender offer rules under the Exchange Act; 
 (b) file a Schedule TO or any
other required schedule under the Exchange Act; and 
 (c) otherwise comply in all material respects with all federal and state securities
laws in connection with any offer by the Company to repurchase the Notes; 
 in each case, so as to permit the rights and obligations under this Article 15
to be exercised in the time and in the manner specified in this Article 15. 

  
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 ARTICLE 16 

OPTIONAL REDEMPTION 

Section 16.01. Optional Redemption. No sinking fund is provided for the Notes. The Notes shall not be redeemable by the Company
prior to June 20, 2025. On or after June 20, 2025, the Company may redeem (an “Optional Redemption”) for cash all or part of the Notes (subject to the Partial Redemption Limitation) on any Business Day prior to the
Maturity Date if the Last Reported Sale Price of the Common Stock has been at least 130% of the Conversion Price for at least 20 Trading Days (whether or not consecutive) during any 30 consecutive Trading Day period (including the last Trading Day
of such period) ending on, and including, the Trading Day immediately preceding the Redemption Notice Date, upon notice as set forth in Section 16.02, at the Redemption Price. 

Section 16.02. Notice of Optional Redemption; Selection of Notes. 

(a) In case the Company exercises its Optional Redemption right to redeem all or, as the case may be, any part of the Notes pursuant to
Section 16.02, it shall fix a date for redemption (the “Redemption Date”), which must be a Business Day that is prior to December 15, 2026, and it shall deliver a notice of such Optional Redemption (a “Redemption
Notice,” and the date on which such Redemption Notice is delivered, the “Redemption Notice Date”) not less than 70 Scheduled Trading Days nor more than 85 Scheduled Trading Days prior to the Redemption Date (provided, that
if the Company elects Physical Settlement for conversions that occur during the related Redemption Period, the Company may provide not less than 10 nor more than 30 Scheduled Trading Days’ written notice prior to the Redemption Date) to the
Trustee, the Conversion Agent (if other than the Trustee), the Paying Agent and each Holder of Notes. 
 The Redemption Notice, if delivered
in the manner herein provided, shall be conclusively presumed to have been duly given, whether or not the Holder receives such notice. In any case, the failure to deliver such Redemption Notice or any defect in the Redemption Notice to the Holder of
any Note designated for redemption as a whole or in part shall not affect the validity of the proceedings for the redemption of any other Note.. 

(b) The Redemption Notice, if delivered in the manner herein provided, shall be conclusively presumed to have been duly given, whether or not
the Holder receives such notice. In any case, the failure to deliver such Redemption Notice or any defect in the Redemption Notice to the Holder of any Note designated for redemption as a whole or in part shall not affect the validity of the
proceedings for the redemption of any other Note. 
 (c) Each Redemption Notice, which shall be irrevocable, shall specify: 

(i) the Redemption Date (which must be a Business Day); 

(ii) the Redemption Price; 

  
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 (iii) that on the Redemption Date, the Redemption Price will become due and
payable upon each such Note, and that interest thereon, if any, shall cease to accrue on and after said date, unless the Company defaults in the deposit of the redemption price; 

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

(v) the place or places where such Notes are to be surrendered for payment of the Redemption Price; 

(vi) that Holders may surrender their Notes for conversion at any time prior to the close of business on the Scheduled Trading
Day preceding the Redemption Date; 
 (vii) the procedures a converting Holder must follow to convert its Notes and the
Settlement Method ; 
 (viii) the Conversion Rate, if applicable, the number of Additional Shares added to the Conversion
Rate in accordance with Section 14.03 and the Settlement Method that shall apply during the Redemption Period; 
 (ix)
the CUSIP, ISIN or other similar numbers, if any, assigned to such Notes; and 
 (x) in case any Note is to be redeemed in
part only, the portion of the principal amount thereof to be redeemed and on and after the Redemption Date, upon surrender of such Note, a new Note in principal amount equal to the unredeemed portion thereof shall be issued. 

At the Company’s request, the Trustee shall give the notice of redemption in the name of and at the Company’s expense; provided,
however, that the Company has delivered to the Trustee, at least five Business Days prior to the date that the notice is required to be given to the Holders (unless a shorter notice period shall be agreed to by the Trustee), an Officer’s
Certificate requesting that the Trustee give such notice and setting forth the information to be stated in such notice as provided in the preceding paragraph. 

(d) If the Company elects to redeem fewer than all of the Outstanding Notes, at least $150,000,000 aggregate principal amount of Notes must be
Outstanding and not subject to redemption as of the date of the relevant Redemption Notice and after giving pro forma effect to the related redemption as of the date of such Redemption Notice (such requirement, the “Partial Redemption
Limitation”). If fewer than all of the Outstanding Notes are to be redeemed, the Notes or portions thereof of Notes to be redeemed shall be selected (in principal amounts of $1,000 or integral multiples thereof) (1) if the Notes are in
global form, then by lot or otherwise in accordance with the applicable procedures of the Depositary or (2) if the Notes are not in global form, then on a pro rata basis, by lot or by such other method as the Trustee in its sole discretion
shall deem fair and appropriate. If any Note selected for partial redemption is submitted for conversion in part after such selection, the portion of the Note submitted for conversion shall be deemed (so far as may be possible) to be the portion
selected for redemption. 

  
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 Section 16.03. Payment of Notes Called for Redemption. (a) If any
Redemption Notice has been given in respect of the Notes in accordance with Section 16.02, the Notes shall become due and payable on the Redemption Date at the place or places stated in the Redemption Notice and at the applicable Redemption
Price. On presentation and surrender of the Notes at the place or places stated in the Redemption Notice, the Notes shall be paid and redeemed by the Company at the applicable Redemption Price. 

(b) No later than 11:00 a.m. (New York City time) on the Redemption Date, the Company shall deposit with the Paying Agent or, if the Company is
acting as the Paying Agent, shall segregate and hold in trust as provided in Section 4.03(b), an amount of cash (in immediately available funds if deposited on the Redemption Date) sufficient to pay the Redemption Price of all of the Notes to
be redeemed on such Redemption Date. Subject to receipt of funds by the Paying Agent, payment for the Notes to be redeemed shall be made promptly after the later of: 

(i) the Redemption Date for such Notes; and 

(ii) the time of presentation of such Note to the Trustee by the Holder thereof in the manner required by this Section 16.03. 

Section 16.04 Restrictions on Redemption. The Company may not redeem any Notes on any date if the principal amount of the
Notes has been accelerated in accordance with the terms of this Indenture, and such acceleration has not been rescinded, on or prior to the Redemption Date (except in the case of an acceleration resulting from a Default by the Company in the payment
of the Redemption Price with respect to such Notes). 
 ARTICLE 17 

MISCELLANEOUS PROVISIONS 

Section 17.01. Provisions Binding on Company’s Successors. All the covenants, stipulations, promises and
agreements of the Company contained in this Indenture made by or on behalf of the Company shall bind its successors and assigns whether so expressed or not. 

Section 17.02. Official Acts by Successor Company. Any act or proceeding by any provision of this Indenture authorized or
required to be done or performed by any board, committee or Officer of the Company shall and may be done and performed with like force and effect by the corresponding board, committee or officer of any company or other entity that shall at the time
be the lawful successor of the Company. 
 Section 17.03. Addresses for Notices, Etc. Any notice or demand that by any
provision of this Indenture is required or permitted to be given or served by the Trustee or by the Holders on the Company shall be deemed to have been sufficiently given or made, for all purposes if given or served by being deposited postage
prepaid by registered or certified mail in a post office letter box addressed (until another address is filed by the Company with the Trustee) to Altair Engineering Inc., 1820 E. Big Beaver Road, Troy, Michigan 48084, Attention: Chief Legal Officer.
Any notice, direction, request or demand hereunder to or upon the Trustee shall be deemed to 

  
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have been sufficiently given or made, for all purposes, if given or served by being deposited postage prepaid by registered or certified mail in a post office letter box addressed to the
Corporate Trust Office or sent electronically in PDF format, whether sent by mail or electronically, upon actual receipt by the Trustee 

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

Any notice or communication delivered or to be delivered to a Holder of Physical Notes shall be mailed to it by first class mail, postage
prepaid, or sent via overnight courier at its address as it appears on the Security Register and shall be sufficiently given to it if so mailed within the time prescribed. Any notice or communication delivered or to be delivered to a Holder of
Global Notes shall be delivered in accordance with the applicable procedures of the Depositary and shall be sufficiently given to it if so delivered within the time prescribed. 

Failure to mail or deliver a notice or communication to a Holder or any defect in it shall not affect its sufficiency with respect to other
Holders. If a notice or communication is mailed or delivered, as the case may be, in the manner provided above, it is duly given, whether or not the addressee receives it. 

In case by reason of the suspension of regular mail service or by reason of any other cause it shall be impracticable to give such notice to
Holders by mail, then such notification as shall be made with the approval of the Trustee shall constitute a sufficient notification for every purpose hereunder. 

Section 17.04. Governing Law; Jurisdiction. THIS INDENTURE AND EACH NOTE, AND ANY CLAIM, CONTROVERSY OR DISPUTE ARISING
UNDER OR RELATED TO THIS INDENTURE AND EACH NOTE, SHALL BE GOVERNED BY, AND CONSTRUED IN ACCORDANCE WITH, THE LAWS OF THE STATE OF NEW YORK (WITHOUT REGARD TO THE CONFLICTS OF LAWS PROVISIONS THEREOF). 

The Company irrevocably consents and agrees, for the benefit of the Holders from time to time of the Notes and the Trustee, that any legal
action, suit or proceeding against it with respect to obligations, liabilities or any other matter arising out of or in connection with this Indenture or the Notes may be brought in the courts of the State of New York or the courts of the United
States located in the Borough of Manhattan, New York City, New York and, until amounts due and to become due in respect of the Notes have been paid, hereby irrevocably consents and submits to the non-exclusive
jurisdiction of each such court in personam, generally and unconditionally with respect to any action, suit or proceeding for itself in respect of its properties, assets and revenues. 

The Company irrevocably and unconditionally waives, to the fullest extent permitted by law, any objection which it may now or hereafter have
to the laying of venue of any of the aforesaid actions, suits or proceedings arising out of or in connection with this Indenture brought in the courts of the State of New York or the courts of the United States located in the Borough of Manhattan,
New York City, New York and hereby further irrevocably and unconditionally 

  
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waives and agrees not to plead or claim in any such court that any such action, suit or proceeding brought in any such court has been brought in an inconvenient forum. 

Section 17.05. Evidence of Compliance with Conditions Precedent; Certificates and Opinions of Counsel to Trustee. Upon any
application or demand by the Company to the Trustee to take any action under any of the provisions of this Indenture, the Company shall, if requested by the Trustee, furnish to the Trustee an Officer’s Certificate and an Opinion of Counsel, in
form reasonably satisfactory to the Trustee, stating that such action is permitted by the terms of this Indenture and that all conditions precedent including any covenants, compliance with which constitutes a condition precedent to such action have
been complied with. 
 Each Officer’s Certificate and Opinion of Counsel provided for, by or on behalf of the Company in this Indenture
and delivered to the Trustee with respect to compliance with this Indenture (other than the Officer’s Certificates provided for in Section 4.08) shall include (a) a statement that the person signing such certificate is familiar with
the requested action and this Indenture; (b) a brief statement as to the nature and scope of the examination or investigation upon which the statement contained in such certificate is based; (c) a statement that, in the judgment of such
person, he or she has made such examination or investigation as is necessary to enable him or her to express an informed judgment as to whether or not such action is permitted by this Indenture; and (d) a statement as to whether or not, in the
judgment of such person, such action is permitted by this Indenture and that all conditions precedent to such action have been complied with. 

Section 17.06. Legal Holidays. In any case where any Interest Payment Date, Fundamental Change Repurchase Date or Maturity
Date is not a Business Day or is a day on which the banking institutions in the city of the office of the Paying Agent and the Trustee (if other than the Paying Agent) are authorized or obligated by law to close or be closed, then any payment to be
made on such date may be made on the next succeeding day that is a Business Day and is not a day on which the banking institutions in the city of the office of the Paying Agent and the Trustee (if other than the Paying Agent) are authorized or
obligated by law to close or be closed with the same force and effect as if made on such Interest Payment Date, Fundamental Change Repurchase Date or Maturity Date, as the case may be, and no interest shall accrue in respect of the delay. 

Section 17.07. No Security Interest Created. Nothing in this Indenture or in the Notes, expressed or implied, shall be
construed to constitute a security interest under the Uniform Commercial Code or similar legislation, as now or hereafter enacted and in effect, in any jurisdiction. 

Section 17.08. Benefits of Indenture. Nothing in this Indenture or in the Notes, expressed or implied, shall give to any
Person, other than the parties hereto, the Holders, any Paying Agent, any Conversion Agent, any Authenticating Agent, any Bid Solicitation Agent, any Security Registrar and their successors hereunder, any legal or equitable right, remedy or claim
under or in respect of this Indenture or under any covenant, condition or provision contained in this Indenture; all such covenants, conditions and provisions being for the sole benefit of the parties hereto and of the Holders of the Notes. 

  
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 Section 17.09. Table of Contents, Headings, Etc. The table of contents
and the titles and headings of the articles and sections of this Indenture have been inserted for convenience of reference only, are not to be considered a part hereof, and shall in no way modify or restrict any of the terms or provisions hereof.

 Section 17.10. Authenticating Agent. The Trustee may appoint an authenticating agent that shall be authorized to act
on its behalf and subject to its direction in the authentication and delivery of Notes in connection with the original issuance thereof and transfers and exchanges of Notes hereunder, including under Section 2.04, Section 2.05,
Section 2.06, Section 2.07, Section 10.04 and Section 15.04 as fully to all intents and purposes as though the authenticating agent had been expressly authorized by this Indenture and those Sections to authenticate and deliver
Notes. For all purposes of this Indenture, the authentication and delivery of Notes by the authenticating agent shall be deemed to be authentication and delivery of such Notes “by the Trustee” and a certificate of authentication executed
on behalf of the Trustee by an authenticating agent shall be deemed to satisfy any requirement hereunder or in the Notes for the Trustee’s certificate of authentication. Such authenticating agent shall at all times be a Person eligible to serve
as trustee hereunder pursuant to Section 7.08. 
 Any corporation or other entity into which any authenticating agent may be merged or
converted or with which it may be consolidated, or any corporation or other entity resulting from any merger, consolidation or conversion to which any authenticating agent shall be a party, or any corporation or other entity succeeding to the
corporate trust business of any authenticating agent, shall be the successor of the authenticating agent hereunder, if such successor corporation or other entity is otherwise eligible under this Section 17.10, without the execution or filing of
any paper or any further act on the part of the parties hereto or the authenticating agent or such successor corporation or other entity. 

Any authenticating agent may at any time resign by giving written notice of resignation to the Trustee and to the Company. The Trustee may at
any time terminate the agency of any authenticating agent by giving written notice of termination to such authenticating agent and to the Company. Upon receiving such a notice of resignation or upon such a termination, or in case at any time any
authenticating agent shall cease to be eligible under this Section, the Trustee may appoint a successor authenticating agent (which may be the Trustee), shall give written notice of such appointment to the Company and shall deliver notice of such
appointment to all Holders. 
 The Company agrees to pay to the authenticating agent from time to time reasonable compensation for its
services although the Company may terminate the authenticating agent, if it determines such agent’s fees to be unreasonable. 
 The
provisions of Section 7.02, Section 7.03, Section 7.04, Section 8.03 and this Section 17.10 shall be applicable to any authenticating agent. 

If an authenticating agent is appointed pursuant to this Section 17.10, the Notes may have endorsed thereon, in addition to the
Trustee’s certificate of authentication, an alternative certificate of authentication in the following form: 

  
 96 












 __________________________, 

as Authenticating Agent, certifies that this is one of the Notes described 

in the within-named Indenture. 
  

	
	 By: ____________________

	 Authorized Signatory


 Section 17.11. Execution in Counterparts. This Indenture may be executed in any number of
counterparts, each of which shall be an original, but such counterparts shall together constitute but one and the same instrument. The exchange of copies of this Indenture and of signature pages by facsimile or PDF transmission shall constitute
effective execution and delivery of this Indenture as to the parties hereto and may be used in lieu of the original Indenture for all purposes. Signatures of the parties hereto transmitted by facsimile or PDF shall be deemed to be their original
signatures for all purposes. All notices, approvals, consents, requests and any communications hereunder must be in writing (provided that any such communication sent to the Trustee hereunder must be in the form of a document that is signed manually
or by way of a digital signature provided by DocuSign or other electronic signature provider that the Company plans to use (or such other digital signature provider as specified in writing to the Trustee by the authorized representative), in
English. The Company agrees to assume all risks arising out of the use of digital signatures and electronic methods to submit communications to the Trustee, including without limitation the risk of the Trustee’s acting on unauthorized
instructions, and the risk of interception and misuse by third parties. 
 Section 17.12. Severability. In case any one
or more provisions contained in this Indenture or in the Notes shall for any reason be held to be invalid, illegal or unenforceable in any respect, such invalidity, illegality or unenforceability shall not affect any other provisions of the
Indenture or the Notes, but this Indenture and the Notes shall be construed as if such invalid or illegal or unenforceable provision had never been contained herein. 

Section 17.13. Waiver of Jury Trial. EACH OF THE COMPANY, THE TRUSTEE AND THE HOLDERS BY ACCEPTANCE OF THE NOTES 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 TRANSACTIONS CONTEMPLATED HEREBY. 

Section 17.14. Force Majeure. In no event shall the Trustee, the Conversion Agent or the Paying Agent be responsible or
liable for any failure or delay in the performance of its obligations hereunder arising out of or caused by, directly or indirectly, forces beyond its control, including, without limitation, strikes, work stoppages, accidents, acts of war or
terrorism, civil or military disturbances, nuclear or natural catastrophes or acts of God, disease, epidemic, pandemic, quarantine, national emergency and interruptions, loss or malfunctions of utilities, communications or computer (software and
hardware) services; it being understood that the Trustee, the Conversion Agent and the Paying Agent, as the case may be, shall use reasonable efforts which are consistent with accepted practices in the banking industry to resume performance as soon
as practicable under the circumstances. 
 Section 17.15. Calculations. The Company shall be responsible for making all
calculations called for under the Notes. These calculations include, but are not limited to, 

  
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determinations of the Stock Price, the Last Reported Sale Prices of the Common Stock, the Daily VWAPs, the Daily Conversion Values, the Daily Settlement Amounts, and accrued interest payable on
the Notes, the Conversion Rate and the Conversion Price of the Notes. The Company shall make all these calculations in good faith and, absent manifest error, the Company’s calculations shall be final and binding on Holders of Notes. 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 Company shall forward its calculations to any Holder of Notes upon the written request of that Holder at the sole cost and expense of the Company. 

Section 17.16. USA PATRIOT Act. The parties hereto acknowledge that in accordance with Section 326 of the USA PATRIOT
Act, the Trustee and the Paying Agent, like all financial institutions and in order to help fight the funding of terrorism and money laundering, is required to obtain, verify, and record information that identifies each person or legal entity that
establishes a relationship or opens an account with the Trustee or the Paying Agent, as the case may be. The parties to this Indenture agree that they will provide the Trustee or the Paying Agent, as the case may be, with such information as it may
request in order for the Trustee to satisfy the requirements of the USA PATRIOT Act. 
 Section 17.17. Tax Withholding.
The Company or the Trustee, as the case may be, shall be entitled to make a deduction or withholding from any payment which it makes under this Indenture for or on account of any present or future taxes, duties or charges if and to the extent so
required by any applicable law and any current or future regulations or agreements thereunder or official interpretations thereof or any law implementing an intergovernmental approach thereto or by virtue of the relevant Holder failing to satisfy
any certification or other requirements in respect of the Notes, in which event the Company or the Trustee, as the case may be, shall make such payment after such withholding or deduction has been made and shall account to the relevant authorities
for the amount so withheld or deducted and shall have no obligation to gross up any payment hereunder or pay any additional amount as a result of such withholding tax. 

[Remainder of page intentionally left blank] 

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

			
	ALTAIR ENGINEERING INC.
		
	By:	 	 /s/ Matthew Brown

		 	Name: Matthew Brown
		 	Title: Chief Financial Officer
	
	 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION, as Trustee

		
	By:	 	 /s/ Richard Krupske

		 	Name: Richard Krupske
		 	Title: Vice President


 [Signature Page to Indenture] 











 EXHIBIT A 

[FORM OF FACE OF NOTE] 
 [INCLUDE
FOLLOWING LEGEND IF A GLOBAL NOTE] 
 [UNLESS THIS CERTIFICATE IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF THE DEPOSITORY TRUST COMPANY,
A NEW YORK CORPORATION (“DTC”), TO THE COMPANY OR ITS AGENT FOR REGISTRATION OF TRANSFER, EXCHANGE, OR PAYMENT, AND ANY CERTIFICATE ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN
AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT 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.] 
 [INCLUDE FOLLOWING LEGEND IF A
RESTRICTED SECURITY] 
 [THIS SECURITY AND THE CLASS A COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY HAVE NOT BEEN
REGISTERED UNDER THE SECURITIES ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED EXCEPT IN ACCORDANCE WITH THE FOLLOWING SENTENCE. BY ITS ACQUISITION HEREOF OR OF A BENEFICIAL
INTEREST HEREIN, THE ACQUIRER: 
 (1) REPRESENTS THAT IT AND ANY ACCOUNT FOR WHICH IT IS ACTING IS A “QUALIFIED
INSTITUTIONAL BUYER” (WITHIN THE MEANING OF RULE 144A UNDER THE SECURITIES ACT) AND THAT IT EXERCISES SOLE INVESTMENT DISCRETION WITH RESPECT TO EACH SUCH ACCOUNT, AND 

(2) AGREES FOR THE BENEFIT OF ALTAIR ENGINEERING INC. (THE “COMPANY”) THAT IT WILL NOT OFFER, SELL, PLEDGE OR
OTHERWISE TRANSFER THIS SECURITY AND THE CLASS A COMMON STOCK, IF ANY, ISSUABLE UPON CONVERSION OF THIS SECURITY, IF ANY, OR ANY BENEFICIAL INTEREST HEREIN OR THEREIN PRIOR TO THE DATE THAT IS THE LATER OF (X) ONE YEAR AFTER THE LAST ORIGINAL
ISSUE DATE HEREOF OR SUCH SHORTER PERIOD OF TIME AS PERMITTED BY RULE 144 UNDER THE SECURITIES ACT OR ANY SUCCESSOR PROVISION THERETO AND (Y) SUCH LATER DATE, IF ANY, AS MAY BE REQUIRED BY APPLICABLE LAW, EXCEPT: 

(A) TO THE COMPANY OR ANY SUBSIDIARY THEREOF, OR 











 (B) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BECOME EFFECTIVE UNDER
THE SECURITIES ACT AND IS EFFECTIVE AT THE TIME OF SUCH TRANSFER, OR 
 (C) TO A PERSON REASONABLY BELIEVED TO BE A QUALIFIED
INSTITUTIONAL BUYER IN COMPLIANCE WITH RULE 144A UNDER THE SECURITIES ACT, OR 
 (D) PURSUANT TO AN EXEMPTION FROM
REGISTRATION PROVIDED BY RULE 144 UNDER THE SECURITIES ACT OR ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 

PRIOR TO THE REGISTRATION OF ANY TRANSFER IN ACCORDANCE WITH CLAUSE (2)(D) ABOVE, THE COMPANY AND THE TRUSTEE RESERVE THE RIGHT TO REQUIRE THE
DELIVERY OF SUCH LEGAL OPINIONS, CERTIFICATIONS OR OTHER EVIDENCE AS MAY REASONABLY BE REQUIRED IN ORDER FOR THE COMPANY TO DETERMINE THAT THE PROPOSED TRANSFER IS BEING MADE IN COMPLIANCE WITH THE SECURITIES ACT AND APPLICABLE STATE SECURITIES
LAWS. NO REPRESENTATION IS MADE AS TO THE AVAILABILITY OF ANY EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT. 
 NO
AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY OR PERSON THAT HAS BEEN AN AFFILIATE (AS DEFINED IN RULE 144 UNDER THE SECURITIES ACT) OF THE COMPANY DURING THE THREE IMMEDIATELY PRECEDING MONTHS MAY PURCHASE, OTHERWISE
ACQUIRE OR OWN THIS SECURITY OR A BENEFICIAL INTEREST HEREIN.]1 
  

	1 	 The Restrictive Legend shall be deemed removed from the face of this Note without further action by the
Company, Trustee or the Holders of this Note at such time and in the manner provided under Section 2.05 of the Indenture. 



  
 A-2 












 ALTAIR ENGINEERING INC. 

1.750% Convertible Senior Note due 2027 
  

			
	 No. [_____]
	  	 [Initially]2 $[_________]


 CUSIP No. [____]3 

Altair Engineering Inc., a corporation duly organized and validly existing under the laws of the State of Delaware (the
“Company,” which term includes any successor corporation or other entity under the Indenture referred to on the reverse hereof), for value received hereby promises to pay to [CEDE & CO.]4 [_______]5, or registered assigns, the principal sum [as set forth in the “Schedule of Exchanges of Notes” attached hereto]6 [of $[_______]]7, which amount, taken together with the principal amounts of all other Outstanding Notes, shall not, unless permitted by the
Indenture, exceed $[200,000,000] in aggregate at any time [or $230,000,000 in aggregate at any time if the Initial Purchaser exercises its option to purchase additional Notes in full as set forth in the Purchase Agreement)], in accordance with the
rules and procedures of the Depositary, on June 15, 2027, and interest thereon as set forth below. 
 This Note shall bear interest at
the rate of 1.750% per year from June 14, 2022, or from the most recent date to which interest had been paid or provided for to, but excluding, the next scheduled Interest Payment Date until June 15, 2027. Interest is payable semi-annually
in arrears on each June 15 and December 15, commencing on December 15, 2022, to Holders of record at the close of business on the preceding June 1 and December 1 (whether or not such day is a Business Day), respectively.
Additional Interest will be payable as set forth in Section 4.06(d), Section 4.06(e) and Section 6.03 of the within-mentioned Indenture, and any reference to interest on, or in respect of, any Note therein shall be deemed to include
Additional Interest if, in such context, Additional Interest is, was or would be payable pursuant to any of such Section 4.06(d), Section 4.06(e) or Section 6.03, and any express mention of the payment of Additional Interest in any
provision therein shall not be construed as excluding Additional Interest in those provisions thereof where such express mention is not made. 

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

The Company shall pay, or cause the Paying Agent to pay, the principal of and interest on this Note, if and so long as such Note is a Global
Note, in immediately available funds to the 
  

	2 	 Include if a global note. 



	3 	 At such time as the Company notifies the Trustee that the Restrictive Legend is to be removed in accordance
with the Indenture, the CUSIP number for this Note shall be deemed to be [___] in accordance with the procedures of the Depositary. 



	4 	 Include if a global note. 



	5 	 Include if a physical note. 



	6 	 Include if a global note. 



	7 	 Include if a physical note. 



  
 A-3 












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

Reference is made to the further provisions of this Note set forth on the reverse hereof, including, without limitation, provisions giving the
Holder of this Note the right to convert this Note into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, on the terms and subject to the limitations set forth in the Indenture. Such further provisions
shall for all purposes have the same effect as though fully set forth at this place. 
 This Note, and any claim, controversy or dispute
arising under or related to this Note, shall be construed in accordance with and governed by the laws of the State of New York (without regard to the conflicts of laws provisions thereof). 

In the case of any conflict between this Note and the Indenture, the provisions of the Indenture shall control and govern. 

This Note shall not be valid or become obligatory for any purpose until the certificate of authentication hereon shall have been signed
manually by the Trustee or a duly authorized Authenticating Agent under the Indenture. 
 [Remainder of page intentionally left blank]


  
 A-4 












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

 

			
	ALTAIR ENGINEERING INC.
		
	By:	 	     

		 	Name:
		 	Title:


 Dated: 
 TRUSTEE’S
CERTIFICATE OF AUTHENTICATION 
 U.S. BANK TRUST COMPANY, NATIONAL ASSOCIATION 

as Trustee, certifies that this is one of the Notes described 
 in
the within-named Indenture. 
  

			
	By:	 	     

		 	Authorized signatory


  
 A-5 












 [FORM OF REVERSE OF NOTE] 

ALTAIR ENGINEERING INC. 
 1.750%
Convertible Senior Note due 2027 
 This Note is one of a duly authorized issue of Notes of the Company, designated as its 1.750%
Convertible Senior Notes due 2027 (the “Notes”), limited to the aggregate principal amount of $[200,000,000] [(as increased by an amount equal to the aggregate principal amount of any additional Notes purchased by the Initial
Purchaser pursuant to the exercise of its option to purchase additional Notes as set forth in the Purchase Agreement)] all issued or to be issued under and pursuant to an Indenture dated as of June 14, 2022 (the “Indenture”),
between the Company and U.S. Bank Trust Company, National Association (the “Trustee”), to which Indenture and all indentures supplemental thereto reference is hereby made for a description of the rights, limitations of rights,
obligations, duties and immunities thereunder of the Trustee, the Company and the Holders of the Notes. Additional Notes may be issued in an unlimited aggregate principal amount, subject to certain conditions specified in the Indenture. Capitalized
terms used in this Note and not defined in this Note shall have the respective meanings set forth in the Indenture. 
 In case certain
Events of Default shall have occurred and be continuing, the principal of, and interest on, all Notes may be declared, by either the Trustee or Holders of at least 25% in aggregate principal amount of Notes then Outstanding, and upon said
declaration shall become, due and payable, in the manner, with the effect and subject to the conditions and certain exceptions set forth in the Indenture. 

Subject to the terms and conditions of the Indenture, the Company will make all payments and deliveries in respect of the Fundamental Change
Repurchase Price on the Fundamental Change Repurchase Date, the Redemption Price on the Redemption Date and the principal amount on the Maturity Date, as the case may be, to the Holder who surrenders a Note to a Paying Agent to collect such payments
in respect of the Note. The Company 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 contains provisions permitting the Company and the Trustee in certain circumstances, without the consent of the Holders of the
Notes, and in certain other circumstances, with the consent of the Holders of not less than a majority in aggregate principal amount of the Notes at the time Outstanding, evidenced as in the Indenture provided, to execute supplemental indentures
modifying the terms of the Indenture and the Notes as described therein. It is also provided in the Indenture that, subject to certain exceptions, the Holders of a majority in aggregate principal amount of the Notes at the time Outstanding may on
behalf of the Holders of all of the Notes waive any past Default or Event of Default under the Indenture and its consequences. 
 No
reference herein to the Indenture and no provision of this Note or of the Indenture shall alter or impair the obligation of the Company, which is absolute and unconditional, to pay or deliver, as the case may be, the principal (including the
Redemption Price and Fundamental Change Repurchase Price, if applicable) of, accrued and unpaid interest on, and the consideration 

  
 A-6 












 
due upon conversion of, this Note at the place, at the respective times, at the rate and in the lawful money herein prescribed. 

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

On or after June 20, 2025 and prior to the Maturity Date, the Company may in certain circumstances specified in the Indenture redeem all
or part of the Notes. No sinking fund is provided for the Notes. 
 Upon the occurrence of a Fundamental Change, the Holder has the right,
at such Holder’s option, to require the Company to repurchase for cash all of such Holder’s Notes or any portion thereof (in principal amounts of $1,000 or integral multiples thereof) on the Fundamental Change Repurchase Date at a price
equal to the Fundamental Change Repurchase Price. 
 Subject to the provisions of the Indenture, the Holder hereof has the right, at its
option, during certain periods and upon the occurrence of certain conditions specified in the Indenture, prior to the close of business on the Business Day immediately preceding the Maturity Date, to convert any Notes or portion thereof that is
$1,000 or an integral multiple of $1,000 thereof, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, at the Conversion Rate specified in the Indenture, as adjusted from time to time as provided in
the Indenture. 

  
 A-7 












 ABBREVIATIONS 

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

UNIF GIFT MIN ACT = Uniform Gifts to Minors Act 
 CUST =
Custodian 
 TEN ENT = as tenants by the entireties 
 JT TEN =
joint tenants with right of survivorship and not as tenants in common 
 Additional abbreviations may also be used though not in the above
list. 

  
 A-8 












 SCHEDULE A8 

SCHEDULE OF EXCHANGES OF NOTES 

ALTAIR ENGINEERING INC. 
 1.750%
Convertible Senior Notes due 2027 
 The initial principal amount of this Global Note is _______ DOLLARS ($[_________]). The following
increases or decreases in this Global Note have been made: 
  

									
	 Date of exchange
	 	 Amount of

decrease in
 principal amount

of this Global Note
	 	 Amount of

increase in
 principal amount

of this Global Note
	 	 Principal amount

of this Global Note
 following
such
 decrease or

increase
	 	 Signature of

authorized
 signatory of

Trustee or
 Custodian

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     

	     
	 	     
	 	     
	 	     
	 	     



 

	8 	 Include if a global note. 



  
 A-9 












 ATTACHMENT 1 

[FORM OF NOTICE OF CONVERSION] 

ALTAIR ENGINEERING INC. 
 1.750%
Convertible Senior Notes due 2027 
 To: U.S. Bank Trust Company, National Association 

The undersigned registered owner of this Note hereby exercises the option to convert this Note, or the portion hereof (that is $1,000
principal amount or an integral multiple thereof) below designated, into cash, shares of Common Stock or a combination of cash and shares of Common Stock, as applicable, in accordance with the terms of the Indenture referred to in this Note, and
directs that any cash payable and any shares of Common Stock issuable and deliverable upon such conversion, together with any cash for any fractional share, and any Notes representing any unconverted principal amount hereof, be issued and delivered
to the registered Holder hereof unless a different name and address has been indicated below. If any shares of Common Stock or any portion of this Note not converted are to be issued in the name of a Person other than the undersigned, the
undersigned will pay all documentary, stamp or similar issue or transfer taxes, if any in accordance with Section 14.02(d) and Section 14.02(e) of the Indenture. Any amount required to be paid to the undersigned on account of interest
accompanies this Note. Capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the Indenture. 
  

					
	Dated:
                                         
                   	  	  
	  	
		  	  
	  	
		  	Signature(s)	  	
			
	  
 Signature Guarantee
	  		  	
			
	Signature(s) must be guaranteed by an eligible Guarantor Institution (banks, stock brokers, savings and loan associations and credit unions) with membership in an approved signature guarantee medallion program pursuant to Securities
and Exchange Commission Rule 17Ad-15 if shares	  		  	


  
 1 













	
	of Common Stock are to be issued, or
	Notes are to be delivered, other than to and in the name of the registered holder.
	
	Fill in for registration of shares if to be issued, and Notes if to be delivered, other than to and in the name of the registered holder:
	
	      

	(Name)
	
	      

	(Street Address)
	
	      

	(City, State and Zip Code)
	Please print name and address

  

	
	Principal amount to be converted (if less than all): $______,000
	
	NOTICE: The above signature(s) of the Holder(s) hereof must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever.
	
	                                      
          
	Social Security or Other Taxpayer
	Identification Number



  
 2 












 ATTACHMENT 2 

[FORM OF FUNDAMENTAL CHANGE REPURCHASE NOTICE] 

ALTAIR ENGINEERING INC. 
 1.750%
Convertible Senior Notes due 2027 
 To: U.S. Bank Trust Company, National Association 

The undersigned registered owner of this Note hereby acknowledges receipt of a notice from Altair Engineering Inc. (the
“Company”) as to the occurrence of a Fundamental Change with respect to the Company and specifying the Fundamental Change Repurchase Date and requests and instructs the Company to pay to the registered holder hereof in accordance
with Section 15.02 of the Indenture referred to in this Note (1) the entire principal amount of this Note, or the portion thereof (that is $1,000 principal amount or an integral multiple of $1,000 thereof) below designated, and (2) if
such Fundamental Change Repurchase Date does not fall during the period after a Regular Record Date and on or prior to the corresponding Interest Payment Date, accrued and unpaid interest, if any, thereon to, but excluding, such Fundamental Change
Repurchase Date. Capitalized terms used herein but not defined shall have the meanings ascribed to such terms in the Indenture. 
 In the
case of Physical Notes, the certificate numbers of the Notes to be repurchased are as set forth below: 
 Dated: _____________________ 

 

	
	  

	Signature(s)
	
	                                      
              
	Social Security or Other Taxpayer
	Identification Number
	
	Principal amount to be repaid (if less than all): $______,000
	
	NOTICE: The above signature(s) of the Holder(s) hereof must correspond with the name as written upon the face of the Note in every particular without alteration or enlargement or any change whatever.



  
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 ATTACHMENT 3 

[FORM OF ASSIGNMENT AND TRANSFER] 

ALTAIR ENGINEERING INC. 
 1.750%
Convertible Senior Notes due 2027 
 For value received ____________________________ hereby sell(s), assign(s) and transfer(s) unto _________________
(Please insert social security or Taxpayer Identification Number of assignee) the within Note, and hereby irrevocably constitutes and appoints _____________________ attorney to transfer the said Note on the books of the Company, with full power of
substitution in the premises. 
 In connection with any transfer of the within Note occurring prior to the Resale Restriction Termination Date, as defined
in the Indenture governing such Note, the undersigned confirms that such Note is being transferred: 
 ☐ To Altair Engineering Inc. or a subsidiary
thereof; or 
 ☐ Pursuant to a registration statement that has become or been declared effective under the Securities Act of 1933, as amended; or 

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

☐ Pursuant to and in compliance with Rule 144 under the Securities Act of 1933, as amended, or any other available exemption from the registration
requirements of the Securities Act of 1933, as amended. 

  
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	Dated: ________________________
	
	      

	
	      

	Signature(s)
	
	      

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

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

  
 2