Document:

EX-4.4

 Exhibit 4.4 

3.250% SENIOR NOTE DUE 2051 

THIS NOTE IS A GLOBAL SECURITY WITHIN THE MEANING OF THE INDENTURE HEREINAFTER REFERRED TO AND IS REGISTERED IN THE NAME OF THE DEPOSITORY
TRUST COMPANY, A NEW YORK CORPORATION (“DTC”), OR A NOMINEE OF DTC. THIS NOTE IS EXCHANGEABLE FOR NOTES REGISTERED IN THE NAME OF A PERSON OTHER THAN DTC OR ITS NOMINEE ONLY IN THE LIMITED CIRCUMSTANCES DESCRIBED IN THE INDENTURE, AND MAY
NOT BE TRANSFERRED EXCEPT AS A WHOLE BY DTC TO A NOMINEE OF DTC, BY A NOMINEE OF DTC TO DTC OR ANOTHER NOMINEE OF DTC OR BY DTC OR ANY SUCH NOMINEE TO A SUCCESSOR DEPOSITARY OR A NOMINEE OF SUCH A SUCCESSOR DEPOSITARY. 

UNLESS THIS GLOBAL SECURITY IS PRESENTED BY AN AUTHORIZED REPRESENTATIVE OF DTC TO THE ISSUER OR ITS AGENT FOR REGISTRATION OF TRANSFER,
EXCHANGE OR PAYMENT, AND ANY GLOBAL SECURITY ISSUED IS REGISTERED IN THE NAME OF CEDE & CO. OR IN SUCH OTHER NAME AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC (AND ANY PAYMENT IS MADE TO CEDE & CO. OR TO SUCH OTHER ENTITY
AS IS REQUESTED BY AN AUTHORIZED REPRESENTATIVE OF DTC), ANY TRANSFER, PLEDGE OR OTHER USE HEREOF FOR VALUE OR OTHERWISE BY OR TO ANY PERSON IS WRONGFUL INASMUCH AS THE REGISTERED OWNER HEREOF, CEDE & CO., HAS AN INTEREST HEREIN. 

THIS NOTE (OR ITS PREDECESSOR) WAS ORIGINALLY ISSUED IN A TRANSACTION EXEMPT FROM, OR NOT SUBJECT TO, REGISTRATION UNDER THE U.S. SECURITIES
ACT OF 1933, AS AMENDED (THE “SECURITIES ACT”), AND THIS NOTE MAY NOT BE OFFERED, SOLD, PLEDGED OR OTHERWISE TRANSFERRED IN THE ABSENCE OF SUCH REGISTRATION OR AN APPLICABLE EXEMPTION THEREFROM. EACH PURCHASER OF THIS NOTE IS HEREBY
NOTIFIED THAT THE SELLER OF THIS NOTE MAY BE RELYING ON THE EXEMPTION FROM THE PROVISIONS OF SECTION 5 OF THE SECURITIES ACT PROVIDED BY RULE 144A THEREUNDER. THE HOLDER OF THIS NOTE BY ITS ACCEPTANCE HEREOF REPRESENTS THAT IT IS NOT A U.S. PERSON
AND IS ACQUIRING NOTES IN AN “OFFSHORE TRANSACTION” PURSUANT TO RULE 904 OF REGULATION S UNDER THE SECURITIES ACT. 
 THE HOLDER
OF THIS NOTE AGREES FOR THE BENEFIT OF BIOGEN INC. THAT (A) PRIOR TO THE DATE (THE “RESALE RESTRICTION TERMINATION DATE”) WHICH IS ONE YEAR AFTER THE LATER OF THE ORIGINAL ISSUE DATE HEREOF AND THE LAST DATE ON WHICH THE ISSUER OR ANY
AFFILIATE OF THE ISSUER WAS THE OWNER OF THIS NOTE (OR ANY PREDECESSOR OF SUCH SECURITY), THIS NOTE MAY BE OFFERED, RESOLD, PLEDGED OR OTHERWISE TRANSFERRED ONLY (I) TO A PERSON WHOM THE SELLER REASONABLY BELIEVES IS A “QUALIFIED
INSTITUTIONAL BUYER” (AS DEFINED IN RULE 144A UNDER THE SECURITIES ACT) IN A TRANSACTION MEETING THE REQUIREMENTS OF RULE 144A, (II) PURSUANT TO AN EXEMPTION FROM REGISTRATION UNDER THE 

  
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SECURITIES ACT PROVIDED BY RULE 144 THEREUNDER (IF AVAILABLE), (III) PURSUANT TO OFFERS AND SALES TO NON-U.S. PERSONS THAT OCCUR OUTSIDE THE U.S. WITHIN
THE MEANING OF REGULATION S UNDER THE SECURITIES ACT, (IV) TO AN INSTITUTIONAL “ACCREDITED INVESTOR” WITHIN THE MEANING OF SUBPARAGRAPH (a)(1), (2), (3) OR (7) OF RULE 501 UNDER THE SECURITIES ACT THAT IS ACQUIRING THIS NOTE FOR
ITS OWN ACCOUNT, OR FOR THE ACCOUNT OF SUCH AN INSTITUTIONAL “ACCREDITED INVESTOR,” FOR INVESTMENT PURPOSES AND NOT WITH A VIEW TO, OR FOR OFFER OR SALE IN CONNECTION WITH, ANY DISTRIBUTION IN VIOLATION OF THE SECURITIES ACT,
(V) PURSUANT TO ANY OTHER AVAILABLE EXEMPTION FROM THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT OR (VI) PURSUANT TO A REGISTRATION STATEMENT WHICH HAS BEEN DECLARED EFFECTIVE UNDER THE SECURITIES ACT, IN EACH CASE IN ACCORDANCE WITH
ANY APPLICABLE SECURITIES LAWS OF ANY STATE OF THE U.S., AND (B) THE HOLDER WILL, AND EACH SUBSEQUENT HOLDER IS REQUIRED TO, NOTIFY ANY PURCHASER OF THIS NOTE OF THE RESALE RESTRICTIONS REFERRED TO IN CLAUSE (A) ABOVE. THIS LEGEND WILL BE
REMOVED UPON THE EARLIER OF THE TRANSFER OF THIS NOTE PURSUANT TO CLAUSE (A)(VI) ABOVE OR REQUEST OF THE HOLDER AFTER THE RESALE RESTRICTION TERMINATION DATE. THE INDENTURE CONTAINS A PROVISION REQUIRING THE TRUSTEE TO REFUSE TO REGISTER THE
TRANSFER OF THIS NOTE IN VIOLATION OF THE FOREGOING RESTRICTION. 
 UNTIL 40 DAYS AFTER THE LATER OF COMMENCEMENT OR COMPLETION OF THE
OFFERING, AN OFFER OR SALE OF NOTES WITHIN THE U.S. BY A DEALER (AS DEFINED IN THE SECURITIES ACT) MAY VIOLATE THE REGISTRATION REQUIREMENTS OF THE SECURITIES ACT IF SUCH OFFER OR SALE IS MADE OTHERWISE THAN IN ACCORDANCE WITH RULE 144A THEREUNDER.

 BIOGEN INC. 

3.250% Senior Note due 2051 
  

			
	REGISTERED	  	PRINCIPAL AMOUNT
	No. Specimen	  	$[            ]

 CUSIP: U0901X AA2 

ISIN: USU0901XAA29 
 Biogen Inc., a
Delaware corporation (herein called the “Company,” which term includes any successor Person under the Indenture hereinafter referred to), for value received, hereby promises to pay to Cede & Co., or registered assigns, the
principal sum of $[ ] on February 15, 2051 (the “Maturity Date”) (except to the extent redeemed or repaid prior to the Maturity Date) and to pay interest thereon from February 16, 2021 (the “Original Issue
Date”) or from the most recent Interest Payment Date to which interest has been paid or duly provided for semi-annually at the rate of 3.250% per annum, on February 15 and August 15 of each year (each such date, an
“Interest Payment Date”), commencing August 15, 2021, until the principal hereof is paid or made available for payment. 

  
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 1. Payment of Interest. The interest so payable, and punctually paid or made
available for payment, on any Interest Payment Date, will, as provided in the Indenture, be paid, in immediately available funds, to the Person in whose name this Note (or one or more predecessor Securities) is registered at the close of business on
February 1 or August 1 (whether or not a Business Day, as defined in the Indenture), as the case may be, next preceding such Interest Payment Date (the “Regular Record Date”). Any such interest not punctually paid or duly
provided for (“Defaulted Interest”) will forthwith cease to be payable to the Holder on such Regular Record Date, and such Defaulted Interest may be paid to the Person in whose name this Note (or one or more predecessor Securities)
is registered at the close of business on a special record date (the “Special Record Date”) for the payment of such Defaulted Interest to be fixed by the Trustee, notice whereof shall be given to Holders of Notes not less than
fifteen days prior to such Special Record Date, or may be paid at any time in any other lawful manner not inconsistent with the requirements of any securities exchange on which the Notes may be listed, and upon such notice as may be required by such
exchange, all as more fully provided in said Indenture. 
 2. Place of Payment. Payment of principal, premium, if any, and interest
on this Note will be made at the Corporate Trust Office of the Trustee or such other office or agency of the Company as may be designated for such purpose, in such coin or currency of the United States of America as at the time of payment is legal
tender for payment of public and private debts; provided, however, that each installment of interest, premium, if any, and principal on this Note may at the Company’s option be paid in immediately available funds by transfer to an
account maintained by the payee located in the United States. 
 3. Time of Payment. In any case where any Interest Payment Date, the
Maturity Date or any date fixed for redemption or repayment of the Notes shall not be a Business Day, then (notwithstanding any other provision of the Indenture or this Note), payment of principal or interest, if any, need not be made on such date,
but may be made on the next succeeding Business Day with the same force and effect as if made on such Interest Payment Date, the Maturity Date or the date so fixed for redemption or repayment, and no interest shall accrue in respect of the delay.

 4. General. This Note is one of a duly authorized issue of Securities of the Company, issued and to be issued in one or more
Series under an indenture, dated as of September 15, 2015 (the “Base Indenture”), between the Company and U.S. Bank National Association (herein called the “Trustee,” which term includes any successor trustee
under the Indenture with respect to a Series of which this Note is a part), as supplemented by a Third Supplemental Indenture thereto, dated as of February 16, 2021 (the “Third Supplemental Indenture” and, together with the
Base Indenture, the “Indenture”). Reference is hereby made to the Indenture for a statement of the respective rights, limitations of rights, duties and immunities thereunder of the Company, the Trustee and the Holders of the
Securities, and of the terms upon which the Securities are, and are to be, authenticated and delivered. This Note is one of a duly authorized Series of Securities designated as “3.250% Senior Notes due 2051” (the “Notes”),
initially limited in aggregate principal amount to $700,731,000. 
 5. Further Issuance. The Company may from time to time, without
the consent of the Holders of the Notes, issue additional Securities (the “Additional Securities”) of this Series 

  
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having the same ranking and the same interest rate, maturity and other terms as the Notes. Any Additional Securities of this Series and the Notes will constitute a single Series under the
Indenture and all references to the Notes shall include the Additional Securities unless the context otherwise requires. 
 6. Events of
Default. If an Event of Default with respect to the Notes shall have occurred and be continuing, the principal of the Notes may be declared due and payable in the manner and with the effect provided in the Indenture. 

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

8. Optional Redemption. The Notes will be redeemable at any time, at the option of the Company, in whole or from time to time in part,
upon not less than 10 nor more than 60 days’ prior notice, on any date prior to their Maturity Date at a redemption price, calculated pursuant to the Indenture, which includes accrued interest thereon, if any, to, but not including, the
Redemption Date. In the case of any partial redemption, selection of the Notes for redemption will be made by the Trustee by such methods as the Trustee in its sole discretion shall deem fair and appropriate. If any Note is to be redeemed in part
only, the notice of redemption relating to such Note shall state the portion of the principal amount thereof to be redeemed. A new Note in principal amount equal to the unredeemed portion thereof will be issued in the name of the Holder thereof upon
cancellation of this Note. 
 9. Repurchase upon a Change of Control Triggering Event. Upon the occurrence of a Change of Control
Triggering Event with respect to the Notes, the Company shall be required to make an offer to repurchase the Notes on the terms set forth in the Indenture. 

10. Defeasance and Covenant Defeasance. The Indenture contains provisions for defeasance at any time of (a) the entire
indebtedness of the Company on this Note and (b) certain restrictive covenants and the related Defaults and Events of Default, upon compliance by the Company with certain conditions set forth therein, which provisions apply to this Note. 

11. Modification and Waivers; Obligations of the Company Absolute. The Indenture permits, with certain exceptions as therein provided,
the amendment thereof and the modification of the rights and obligations of the Company and the rights of the Holders of the Securities of each Series. Such amendment may be effected under the Indenture at any time by the Company and the Trustee
with the consent of the Holders of not less than a majority in aggregate principal amount of the outstanding Notes of each Series affected thereby. The Indenture also contains provisions permitting the Holders of not less than a majority in
aggregate principal amount of the Securities at the time outstanding, on behalf of the Holders of all outstanding Securities, to waive compliance by the Company with certain provisions of the Indenture. Furthermore, provisions in the Indenture
permit the Holders of not less than a majority in aggregate principal amount of the outstanding Securities of individual Series to waive on behalf of all of the Holders of Securities of such individual Series certain past defaults under the
Indenture and their consequences. Any such consent or waiver shall be conclusive and binding upon the Holder of this Note and upon all future Holders of this Note and of any Note issued upon the registration of transfer hereof or in exchange hereof
or in lieu hereof, whether or not notation of such consent or waiver is made upon this Note. 

  
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 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 the principal of and interest on this Note at the time, place, and rate, and in the coin or currency, herein prescribed. 

12. Limitation on Suits. As set forth in, and subject to, the provisions of the Indenture, no Holder of any Note will have any right to
institute any proceeding with respect to the Indenture or for any remedy thereunder, unless such Holder shall have previously given to the Trustee written notice of a continuing Event of Default with respect to this Series, the Holders of not less
than 25% in aggregate principal amount of the outstanding Notes shall have made written request, and offered indemnity and/or security, to the Trustee to institute such proceedings as trustee, and the Trustee shall not have received from the Holders
of a majority in principal amount of the outstanding Notes a direction inconsistent with such request and shall have failed to institute such proceeding within 60 days; provided, however, that such limitations do not apply to a suit
instituted by the Holder hereof for the enforcement of payment of the principal of or interest on this Note on or after the respective due dates expressed herein. 

13. Authorized Denominations. The Notes are issuable only in registered form without coupons in denominations of $2,000 or any integral
multiple of $1,000 in excess thereof. A Holder shall register the transfer of or exchange Securities in accordance with the Indenture. The Company may require a Holder, among other things, to furnish appropriate endorsements and transfer documents
and to pay certain transfer taxes or similar governmental charges payable in connection therewith as permitted by the Indenture. The Company need not issue, authenticate, register the transfer of or exchange any Securities or portions thereof for a
period of 15 days before such series is selected for redemption, nor need the Company register the transfer or exchange of any Security selected for redemption in whole or in part. 

14. Registration of Transfer or Exchange. As provided in the Indenture and subject to certain limitations herein and therein set forth,
the transfer of this Note is registrable in the register of the Notes maintained by the Registrar upon surrender of this Note for registration of transfer, at the office or agency of the Company in any place where the principal of and interest on
this Note are payable, duly endorsed by, or accompanied by a written instrument of transfer in form satisfactory to the Company and the Registrar, duly executed by the Holder hereof or his attorney duly authorized in writing, and thereupon one or
more new Notes, of authorized denominations and for the same aggregate principal amount, will be issued to the designated transferee or transferees. 

As provided in the Indenture and subject to certain limitations herein and therein set forth, the Notes are exchangeable for a like aggregate
principal amount of Notes of different authorized denominations, as requested by the Holders surrendering the same. 
 No service charge
shall be made for any such registration of transfer or exchange, but the Company may require payment of a sum sufficient to cover any tax or other governmental charge payable in connection therewith. 

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

  
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 The Holder of this Note is entitled to the benefits of the Registration Rights Agreement.
Capitalized terms used in this paragraph have the meanings given to them in the Registration Rights Agreement. Subject to the terms of the Registration Rights Agreement, if a Registration Default occurs, the interest rate on this Note will be
increased by 0.25% per annum from the date such Registration Default occurs until and including the date such Registration Default ends. Any such additional interest shall be paid in the same manner and on the same dates as interest payments in
respect of this Note. A “Registration Default” shall mean the occurrence of any of the following: (i) the Exchange Offer is not completed on or prior to the Target Registration Date, (ii) the Shelf Registration Statement,
if required pursuant to Section 2(b)(i) or Section 2(b)(ii) of the Registration Rights Agreement, has not become effective on or prior to the 180th day after the Target Registration
Date, (iii) if the Company receives a Shelf Request pursuant to Section 2(b)(iii) of the Registration Rights Agreement, the Shelf Registration Statement required to be filed thereby has not become effective by the 180th day after the later of the Target Registration Date and the receipt of such Shelf Request, or (iv) the Shelf Registration Statement, if required by the Registration Rights Agreement, has become
effective and thereafter ceases to be effective or the Prospectus contained therein ceases to be usable for its intended purpose without being succeeded promptly by a post-effective amendment to such Registration Statement that cures such failure
and that is itself promptly declared effective, and such failure to remain effective or usable exists for more than 90 days (whether or not consecutive) in any 12-month period. A Registration Default ends when
this Note ceases to be a Registrable Security or, if earlier, (1) in the case of a Registration Default under clause (i) of the definition thereof, when the Exchange Offer is completed, (2) in the case of a Registration Default under
clause (ii) or clause (iii) of the definition thereof, when the Shelf Registration Statement becomes effective or (3) in the case of a Registration Default under clause (iv) of the definition thereof, when the Shelf Registration
Statement again becomes effective or the related Prospectus again becomes usable (or, if earlier, when the Shelf Effectiveness Period ends). This Note shall cease to be a Registrable Security upon the earliest of the following: (i) when the
Exchange Offer Registration Statement has become effective and this Note been exchanged for Exchange Securities or otherwise disposed of pursuant to such Registration Statement, (ii) when a Registration Statement with respect to this Note has
become effective under the Securities Act and this Note has been disposed of pursuant to such Registration Statement, (iii) when this Note ceases to be outstanding or (iv) unless this Note otherwise remains a Registrable Security and is
held by a Holder and is ineligible to be exchanged in the Exchange Offer, when the Exchange Offer is consummated. If at any time more than one Registration Default has occurred and is continuing, then, until the next date that there is no
Registration Default, the increase in interest rate provided for by this paragraph shall apply as if there occurred a single Registration Default that begins on the date that the earliest such Registration Default occurred and ends on such next date
that there is no Registration Default. This paragraph is subject in all respects to the terms and conditions of the Registration Rights Agreement and does not in any way amend, modify, change or enlarge any rights or obligations under the
Registration Rights Agreement. 
 15. Defined Terms. All terms used in this Note, which are defined in the Indenture and are not
otherwise defined herein, shall have the meanings assigned to them in the Indenture. 

  
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 16. Governing Law. This Note shall be governed by and construed in
accordance with the laws of the State of New York. 
 Unless the certificate of authentication hereon has been executed by the Trustee
by manual signature, this Note shall not be entitled to any benefit under the Indenture or be valid or obligatory for any purpose. 

[Remainder of page intentionally left blank.] 

  
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 IN WITNESS WHEREOF, the Company has caused this instrument to be duly executed and its seal
to be hereunto affixed. 
 Dated: February 16, 2021 
  

			
	BIOGEN INC.
		
	By:	 	  

		 	Name:
		 	Title:

  
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 TRUSTEE’S CERTIFICATE OF AUTHENTICATION 

This is one of the Notes of the Series designated and referred to in the within-mentioned Indenture, as such is supplemented by the
within-mentioned Third Supplemental Indenture. 
  

			
	U.S. BANK NATIONAL ASSOCIATION, as Trustee
		
	By:	 	  

		 	Name:
		 	Title:

 Dated: February 16, 2021 

  
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 ASSIGNMENT 

FOR VALUE RECEIVED, the undersigned hereby sell(s), assign(s) and transfer(s) unto 
  

 
  

 
 PLEASE INSERT SOCIAL SECURITY NUMBER OR OTHER
IDENTIFYING NUMBER OF ASSIGNEE 
  

					
		 	
		  	 	  	

  
  

 
  

(Please print or typewrite name and address, 

including postal zip code, of assignee) 
 the
within Note and all rights thereunder, and hereby irrevocably constitutes and appoints 
  

 
  

 
  

 
 to transfer said Note on the books of the Trustee,
with full power of substitution in the premises. 
 CHECK ONE BOX BELOW 

(1) ☐ This Note is being transferred inside the United States to a “qualified institutional buyer” (as defined in Rule 144A under the
Securities Act of 1933, as amended (the “Securities Act”)) that purchases for its own account or for the account of a qualified institutional buyer to whom notice is given that such transfer is being made in reliance on Rule 144A,
in each case pursuant to and in compliance with Rule 144A under the Securities Act; or 
 (2) ☐ This Note is being transferred outside the United
States to a Non-U.S. Person in an offshore transaction within the meaning of Regulation S under the Securities Act in compliance with Rule 904 under the Securities Act. 

Unless one of the boxes is checked, the Trustee will not be obligated to register this Note in the name of any Person other than the Holder hereof unless and
until the conditions to any such transfer of registration set forth herein and in Section 2.3 of the Third Supplemental Indenture shall have been satisfied. 

  
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	Dated:	 	  
	 		 	  

		 		 		 	NOTICE: The signature to this assignment must correspond with the name as written upon the face of the within Note in every particular, without alteration or enlargement or any change whatsoever.
			
	  
	 		 	
	Signature Guarantee	 		 	

 TO BE COMPLETED BY PURCHASER IF (1) ABOVE IS CHECKED. 

The undersigned represents and warrants that it is purchasing this Note for its own account or an account with respect to which it exercises sole investment
discretion and that each of it and any such account is a “qualified institutional buyer” within the meaning of Rule 144A under the Securities Act, and is aware that the sale to it is being made in reliance on Rule 144A and acknowledges
that it has received such information regarding the Company as the undersigned has requested pursuant to Rule 144A or has determined not to request such information and that it is aware that the transferor is relying upon the undersigned’s
foregoing representations in order to claim the exemption from registration provided by Rule 144A. 
  

							
	Dated:	 	  
	 		 	  

		 		 		 	NOTICE: To be executed by an executive officer.

  
 11EX-4.5

 Exhibit 4.5 

REGISTRATION RIGHTS AGREEMENT 

This REGISTRATION RIGHTS AGREEMENT dated February 16, 2021 (this “Agreement”) is entered into by and among Biogen Inc.,
a Delaware corporation (the “Company”), and Deutsche Bank Securities Inc. and Citigroup Global Markets Inc. as dealer managers (each, a “Dealer Manager” and, together, the “Dealer Managers”). 

The Company and the Dealer Managers are parties to the Dealer Manager Agreement dated February 4, 2021 (the “Dealer Manager
Agreement”), which was entered into in connection with (a) the Company’s offer to exchange (the “Original Exchange Offer”) its 5.200% Senior Notes due 2045 (the “Existing Notes”) for the
Company’s newly issued 3.250% Senior Notes due 2051 (the “Securities”) on the terms and conditions set forth in the Company’s Offering Memorandum dated February 4, 2021 and (b) the Company’s separate,
concurrent offer to purchase for cash the Existing Notes on the terms and conditions set forth in the Company’s Offer to Purchase dated February 4, 2021. 

As an inducement to holders to tender the Existing Notes in the Original Exchange Offer, the Company agrees with the Dealer Managers to grant,
for the benefit of the Holders (as defined below) the registration rights set forth in this Agreement. 
 In consideration of the foregoing,
the parties hereto agree as follows: 
 1.    Definitions. As used in this Agreement, the following terms shall
have the following meanings: 
 “Agreement” shall have the meaning set forth in the preamble. 

“Business Day” shall mean any day that is not a Saturday, Sunday or other day on which commercial banks in New York City are
authorized or required by law to remain closed. 
 “Closing Date” means February 16, 2021. 

“Dealer Manager” shall have the meaning set forth in the preamble. 

“Dealer Manager Agreement” shall have the meaning set forth in the preamble. 

“Company” shall have the meaning set forth in the preamble and shall also include the Company’s successors. 

“Exchange Act” shall mean the Securities Exchange Act of 1934, as amended from time to time. 

“Exchange Dates” shall have the meaning set forth in Section 2(a) hereof. 

“Exchange Offer” shall mean the exchange offer by the Company of Exchange Securities for Registrable Securities pursuant to
Section 2(a) hereof. 

 “Exchange Offer Registration” shall mean a registration under the
Securities Act effected pursuant to Section 2(a) hereof. 
 “Exchange Offer Registration Statement” shall mean an
exchange offer registration statement on Form S-4 (or, if applicable, on another appropriate form) and all amendments and supplements to such registration statement, in each case including the Prospectus
contained therein or deemed a part thereof, all exhibits thereto and any document incorporated by reference therein. 
 “Exchange
Securities” shall mean unsecured senior notes issued by the Company under the Indenture containing terms substantially identical to the Securities (except that the Exchange Securities will not be subject to restrictions on transfer or to
any increase in annual interest rate for failure to comply with this Agreement) and to be offered to Holders of Securities in exchange for Securities pursuant to the Exchange Offer. 

“Existing Notes” shall have the meaning set forth in the preamble. 

“Extension Period” shall have the meaning set forth in Section 3(d). 

“FINRA” means the Financial Industry Regulatory Authority, Inc. 

“Free Writing Prospectus” means each free writing prospectus (as defined in Rule 405 under the Securities Act) prepared by or
on behalf of the Company or used or referred to by the Company in connection with the sale of the Registrable Securities or the Exchange Securities. 

“Holders” shall mean the holders of Registrable Securities, and each of their successors, assigns and direct and indirect
transferees who become owners of Registrable Securities under the Indenture; provided that, for purposes of Section 4 and Section 5 hereof, the term “Holders” shall include Participating Broker-Dealers. 

“Indemnified Party” shall have the meaning set forth in Section 5(c) hereof. 

“Indemnifying Party” shall have the meaning set forth in Section 5(c) hereof. 

“Indenture” shall mean the Indenture relating to the Securities dated as of September 15, 2015, between the Company and
U.S. Bank National Association, as trustee, as supplemented and amended by a supplemental indenture dated as of February 16, 2021, between the Company and U.S. Bank National Association, as trustee, and as the same may be further supplemented
or amended from time to time in accordance with the terms thereof. 
 “Inspector” shall have the meaning set forth in
Section 3(a)(xiv) hereof. 
 “Issuer Information” shall have the meaning set forth in Section 5(a) hereof. 

“Majority Holders” shall mean the Holders of a majority of the aggregate principal amount of the outstanding Registrable
Securities held by Participating Holders and covered or to be covered by the Shelf Registration Statement (and, where applicable, included to or be included in an Underwritten Offering); provided that any Registrable Securities owned directly

  
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or indirectly by the Company or any of its affiliates shall not be counted in determining whether such consent or approval was given; and provided, further, that if the Company shall issue
any additional Securities under the Indenture prior to consummation of the Exchange Offer or, if applicable, the effectiveness of any Shelf Registration Statement, such additional Securities and the Registrable Securities to which this Agreement
relates shall be treated together as one class for purposes of determining whether the consent or approval of the Majority Holders has been obtained. 

“Notice and Questionnaire” shall mean a notice of registration statement and selling security holder questionnaire
distributed to a Holder by the Company upon receipt of a Shelf Request from such Holder, which Notice and Questionnaire may include such representations and warranties regarding such Holder, its ownership of Securities, its relationships with the
Company and its participation in the Shelf Registration as the Company shall reasonably request, as well as an agreement to be bound by this Agreement as a Holder. 

“Original Exchange Offer” shall have the meaning set forth in the preamble. 

“Participating Broker-Dealers” shall have the meaning set forth in Section 4(a) hereof. 

“Participating Holder” shall mean any Holder of Registrable Securities that has returned a completed and signed Notice and
Questionnaire to the Company in accordance with Section 2(b) hereof. 
 “Person” shall mean an individual,
partnership, limited liability company, corporation, trust or unincorporated organization, or a government or agency or political subdivision thereof. 

“Prospectus” shall mean the prospectus included in, or, pursuant to the rules and regulations of the Securities Act, deemed a
part of, a Registration Statement, including any preliminary prospectus, and any such prospectus as amended or supplemented by any prospectus supplement, including a prospectus supplement with respect to the terms of the offering of any portion of
the Registrable Securities covered by a Shelf Registration Statement, and by all other amendments and supplements to such prospectus, and in each case including any document incorporated by reference therein. 

“Registrable Securities” shall mean the Securities; provided that the Securities shall cease to be Registrable
Securities upon the earliest of the following: (i) when the Exchange Offer Registration Statement has become effective and such Securities have been exchanged for Exchange Securities or otherwise disposed of pursuant to such Registration
Statement, (ii) when a Registration Statement with respect to such Securities has become effective under the Securities Act and such Securities have been disposed of pursuant to such Registration Statement, (iii) when such Securities cease
to be outstanding or (iv) except in the case of Securities that otherwise remain Registrable Securities and that are held by a Holder and that are ineligible to be exchanged in the Exchange Offer, when the Exchange Offer is consummated. 

“Registration Default” shall mean the occurrence of any of the following: (i) the Exchange Offer is not completed on or
prior to the Target Registration Date, (ii) the Shelf Registration Statement, if required pursuant to Section 2(b)(i) or Section 2(b)(ii) hereof, has not become effective on or prior to the 180th day after the Target Registration Date, (iii) if the 

  
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Company receives a Shelf Request pursuant to Section 2(b)(iii), the Shelf Registration Statement required to be filed thereby has not become effective by the 180th day after the later of the Target Registration Date and the receipt of such Shelf Request, or (iv) the Shelf Registration Statement, if required by this Agreement, has become effective and
thereafter ceases to be effective or the Prospectus contained therein ceases to be usable for its intended purpose without being succeeded promptly by a post-effective amendment to such Registration Statement that cures such failure and that is
itself promptly declared effective, and such failure to remain effective or usable exists for more than 90 days (whether or not consecutive) in any 12-month period. 

“Registration Expenses” shall mean any and all expenses incident to performance of or compliance by the Company with this
Agreement, including without limitation: (i) all SEC, stock exchange or FINRA registration and filing fees, (ii) all fees and expenses incurred in connection with compliance with state securities or blue sky laws (including reasonable fees
and disbursements of counsel for any Underwriters or Holders in connection with blue sky qualification of any Exchange Securities or Registrable Securities), (iii) all expenses incurred by the Company in preparing or assisting in preparing, word
processing, printing and distributing any Registration Statement, any Prospectus, any Free Writing Prospectus and any amendments or supplements thereto, any underwriting agreements, securities sales agreements or other similar agreements and any
other documents relating to the performance of and compliance with this Agreement, (iv) all rating agency fees incurred by the Company, (v) all fees and disbursements relating to the qualification of the Indenture under applicable
securities laws, (vi) the reasonable fees and disbursements of the Trustee and its counsel, (vii) the fees and disbursements of counsel for the Company and, in the case of a Shelf Registration Statement, the reasonable fees (not to exceed
$50,000) and disbursements of one counsel for the Participating Holders (which counsel shall be selected by the Majority Holders and which counsel may also be counsel for the Dealer Managers) and (viii) the fees and disbursements of the
independent registered public accountants of the Company, including the expenses of any special audits or “comfort” letters required by or incident to the performance of and compliance with this Agreement, but excluding fees and expenses
of counsel to any Underwriters (other than fees and expenses set forth in clause (ii) above) or any Holders and underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of
Registrable Securities by a Holder. 
 “Registration Statement” shall mean any registration statement of the Company that
covers any of the Exchange Securities or Registrable Securities pursuant to the provisions of this Agreement and all amendments and supplements to any such registration statement, including post-effective amendments, in each case including the
Prospectus contained therein or deemed a part thereof, all exhibits thereto and any document incorporated by reference therein. 

“SEC” shall mean the United States Securities and Exchange Commission. 

“Securities” shall have the meaning set forth in the preamble. 

“Securities Act” shall mean the Securities Act of 1933, as amended from time to time. 

“Shelf Effectiveness Period” shall have the meaning set forth in Section 2(b) hereof. 

“Shelf Registration” shall mean a registration effected pursuant to Section 2(b) hereof. 

  
 4 

 “Shelf Registration Statement” shall mean a “shelf” registration
statement of the Company, including an existing “shelf” registration statement designated by the Company, that covers all or a portion of the Registrable Securities on an appropriate form under Rule 415 under the Securities Act, or any
similar rule that may be adopted by the SEC, and all amendments and supplements to such registration statement, including post-effective amendments, in each case including the Prospectus contained therein or deemed a part thereof, all exhibits
thereto and any document incorporated by reference therein. 
 “Shelf Request” shall have the meaning set forth in
Section 2(b) hereof. 
 “Staff” shall mean the staff of the SEC. 

“Target Registration Date” shall mean the date that is 365 days after the Closing Date. 

“Trust Indenture Act” shall mean the Trust Indenture Act of 1939, as amended from time to time. 

“Trustee” shall mean the trustee with respect to the Securities under the Indenture. 

“Underwriter” shall have the meaning set forth in Section 3(e) hereof. 

“Underwritten Offering” shall mean an offering in which at least $250.0 million aggregate principal amount of
Registrable Securities are sold to an Underwriter for reoffering to the public. 
 2.    Registration Under the
Securities Act. (a) To the extent not prohibited by any applicable law or applicable interpretations of the Staff, the Company shall use its commercially reasonable efforts to (x) cause to be filed an Exchange Offer Registration
Statement covering an offer to the Holders to exchange all the Registrable Securities for Exchange Securities and (y) have such Registration Statement become and remain effective for a period ending on the earlier of (i) 90 days from the date
on which the Exchange Offer Registration Statement is declared effective (as such period may be extended pursuant to Section 3(d) hereof) and (ii) the date on which no Participating Broker-Dealer is required to deliver a prospectus in
connection with resales of Exchange Securities issued in exchange for Registrable Securities it acquired for its own account as a result of market-making or other trading activities. The Company shall commence the Exchange Offer promptly after the
Exchange Offer Registration Statement is declared effective by the SEC and use its commercially reasonable efforts to complete the Exchange Offer. 

The Company shall commence the Exchange Offer by mailing the related Prospectus and other accompanying documents to each Holder stating, in
addition to such other disclosures as are required by applicable law, substantially the following: 
 (i)    that the
Exchange Offer is being made pursuant to this Agreement and that all Registrable Securities validly tendered and not properly withdrawn will be accepted for exchange; 

  
 5 

 (ii)    the dates of acceptance for exchange (which shall be a period
of at least 20 Business Days from the date such notice is mailed) (the “Exchange Dates”); 

(iii)    that any Registrable Security not tendered will remain outstanding and continue to accrue interest but will not
retain any rights under this Agreement (including with respect to increases in annual interest rate), except as otherwise specified herein; 

(iv)    that any Holder electing to have a Registrable Security exchanged pursuant to the Exchange Offer will be required
to (A) surrender such Registrable Security to the institution at the address and in the manner specified in the notice, or (B) effect such exchange otherwise in compliance with the applicable procedures of the depositary for such
Registrable Security, in each case prior to the close of business on the last Exchange Date; and 
 (v)    that any
Holder will be entitled to withdraw its election, not later than the close of business on the last Exchange Date, by (A) sending to the institution at the address specified in the notice, a facsimile transmission or letter setting forth the
name of such Holder, the principal amount of Registrable Securities delivered for exchange and a statement that such Holder is withdrawing its election to have such Securities exchanged or (B) effecting such withdrawal in compliance with the
applicable procedures of the depositary for the Registrable Securities. 
 As a condition to receiving freely tradable Exchange Securities
in the Exchange Offer, a Holder will be required to represent to the Company that (1) any Exchange Securities to be received by it will be acquired in the ordinary course of its business, (2) it is not engaged in, does not intend to engage
in, and has no arrangement or understanding with any Person to participate in the distribution (within the meaning of the Securities Act) of the Exchange Securities in violation of the provisions of the Securities Act, (3) it is not an
“affiliate” (within the meaning of Rule 405 under the Securities Act) of the Company and (4) if such Holder is a broker-dealer that will receive Exchange Securities for its own account in exchange for Registrable Securities that were
acquired as a result of market-making or other trading activities, then such Holder will deliver (or, to the extent permitted by law, make available) the then-current Prospectus (as then amended or supplemented) to purchasers in connection with any
resale of such Exchange Securities. 
 As soon as practicable after the last Exchange Date, the Company shall: 

(I)    accept for exchange Registrable Securities or portions thereof validly tendered and not properly withdrawn pursuant
to the Exchange Offer; and 
 (II)    deliver, or cause to be delivered, to the Trustee for cancellation all
Registrable Securities or portions thereof so accepted for exchange by the Company and issue, and cause the Trustee to promptly authenticate and deliver to each Holder, Exchange Securities equal in principal amount to the principal amount of the
Registrable Securities tendered by such Holder and accepted for exchange. 
 The Company shall use its commercially reasonable efforts to
complete the Exchange Offer as provided above and to comply with the applicable requirements of the Securities Act, the Exchange Act and other applicable laws and regulations in connection with the Exchange

  
 6 

 
Offer. The Exchange Offer shall not be subject to any conditions, other than customary conditions, including that the Exchange Offer does not violate any applicable law or applicable
interpretations of the Staff. 
 (b)    In the event that (i) the Company determines that the Exchange Offer
Registration provided for in Section 2(a) hereof is not available or the Exchange Offer may not be completed because it would violate any applicable law or applicable interpretations of the Staff, (ii) the Exchange Offer is not for any
other reason completed by the Target Registration Date or (iii) upon receipt of a written request (a “Shelf Request”) from any Holder representing that it holds Registrable Securities that are or were ineligible to be exchanged
in the Exchange Offer, the Company shall use its commercially reasonable efforts to cause to be filed as soon as practicable after such determination, date or Shelf Request, as the case may be, a Shelf Registration Statement providing for the sale
of all the Registrable Securities by the Holders thereof and to have such Shelf Registration Statement become effective; provided that no Holder will be entitled to have any Registrable Securities included in any Shelf Registration Statement,
or entitled to use any Prospectus forming a part of such Shelf Registration Statement, until such Holder shall have delivered a completed and signed Notice and Questionnaire to the Company, provided such other information regarding such Holder to
the Company as is contemplated by Section 3(b) hereof and otherwise complied with this Agreement. Each Holder as to which any Shelf Registration Statement is being effected agrees to furnish promptly to the Company all information required to
be disclosed in order to make the information previously furnished to the Company by such Holder not misleading. 
 In the event that the
Company is required to file a Shelf Registration Statement pursuant to clause (iii) of the preceding sentence, the Company shall use its commercially reasonable efforts to file and have become effective both an Exchange Offer Registration
Statement pursuant to Section 2(a) hereof with respect to all Registrable Securities and a Shelf Registration Statement (which may be a combined Registration Statement with the Exchange Offer Registration Statement) with respect to offers and
sales of Registrable Securities held by the Holders after completion of the Exchange Offer. 
 The Company agrees to use its commercially
reasonable efforts to keep the Shelf Registration Statement continuously effective until the earliest of (i) the time when such Registrable Securities covered by the Shelf Registration Statement can be sold pursuant to Rule 144 of the
Securities Act without any limitations by non-affiliates of the Company under clause (d) of Rule 144 of the Securities Act, (ii) the date on which all such Registrable Securities are disposed of in
accordance with the Shelf Registration Statement and (iii) one year after the original effective date of the Shelf Registration Statement (the period ending on the earliest such date, the “Shelf Effectiveness Period”). The
Company further agrees to use commercially reasonable efforts to supplement or amend the Shelf Registration Statement, the related Prospectus and any Free Writing Prospectus if required by the rules, regulations or instructions applicable to the
registration form used by the Company for such Shelf Registration Statement or by the Securities Act or by any other rules and regulations thereunder or if reasonably requested by a Holder of Registrable Securities with respect to information
relating to such Holder, and to use its commercially reasonable efforts to cause any such amendment to become effective, if required, and such Shelf Registration Statement, Prospectus or Free Writing Prospectus, as the case may be, to become usable
as soon as practicable thereafter. The Company agrees to furnish to the Participating Holders copies, upon request, of any such supplement or amendment promptly after its being used or filed with the SEC. 

  
 7 

 (c)    The Company shall pay all Registration Expenses in connection
with any registration pursuant to Section 2(a) or Section 2(b) hereof. Each Holder shall pay all underwriting discounts and commissions, brokerage commissions and transfer taxes, if any, relating to the sale or disposition of such
Holder’s Registrable Securities pursuant to the Shelf Registration Statement and all fees and expenses of counsel to such Holder. 

(d)    An Exchange Offer Registration Statement pursuant to Section 2(a) hereof will not be deemed to have become
effective unless it has been declared effective by the SEC. A Shelf Registration Statement pursuant to Section 2(b) hereof will not be deemed to have become effective unless it has been declared effective by the SEC or is or was automatically
effective upon filing with the SEC as provided by Rule 462 under the Securities Act. 
 (e)    If a Registration Default
occurs, the interest rate on the Registrable Securities will be increased by 0.25% per annum from the date such Registration Default occurs until and including the date such Registration Default ends. A Registration Default ends when the Securities
cease to be Registrable Securities or, if earlier, (1) in the case of a Registration Default under clause (i) of the definition thereof, when the Exchange Offer is completed, (2) in the case of a Registration Default under clause
(ii) or clause (iii) of the definition thereof, when the Shelf Registration Statement becomes effective or (3) in the case of a Registration Default under clause (iv) of the definition thereof, when the Shelf Registration
Statement again becomes effective or the related Prospectus again becomes usable (or, if earlier, when the Shelf Effectiveness Period ends). If at any time more than one Registration Default has occurred and is continuing, then, until the next date
that there is no Registration Default, the increase in interest rate provided for by this paragraph shall apply as if there occurred a single Registration Default that begins on the date that the earliest such Registration Default occurred and ends
on such next date that there is no Registration Default. 
 (f)    Without limiting the remedies available to the Dealer
Managers and the Holders, the Company acknowledges that any failure by the Company to comply with its obligations under Section 2(a) and Section 2(b) hereof may result in material irreparable injury to the Dealer Managers or the Holders
for which there is no adequate remedy at law, that it will not be possible to measure damages for such injuries precisely and that, in the event of any such failure, the Dealer Managers or any Holder may obtain such relief as may be required to
specifically enforce the Company’s obligations under Section 2(a) and Section 2(b) hereof; provided, however, that the parties hereto agree that the additional interest provided for in this Section 2 is intended to
constitute the sole remedy for monetary damages in connection with any Registration Default. 
 3.    Registration
Procedures. (a) In connection with its obligations pursuant to Section 2(a) and Section 2(b) hereof, the Company shall use commercially reasonable efforts to, as expeditiously as possible: 

(i)    prepare and file with the SEC a Registration Statement on the appropriate form under the Securities Act, which form
(A) shall be selected by the Company, (B) 

  
 8 

 
shall, in the case of a Shelf Registration, be available for the sale of the Registrable Securities by the Holders thereof and (C) shall comply as to form in all material respects with the
requirements of the applicable form and include all financial statements required by the SEC to be filed therewith; and use its commercially reasonable efforts to cause such Registration Statement to become effective and remain effective for the
applicable period in accordance with Section 2 hereof; 
 (ii)    prepare and file with the SEC such amendments
and post-effective amendments to each Registration Statement as may be necessary to keep such Registration Statement effective for the applicable period in accordance with Section 2 hereof and cause each Prospectus to be supplemented by any
required prospectus supplement and, as so supplemented, to be filed pursuant to Rule 424 under the Securities Act; and keep each Prospectus current during the period described in Section 4(3) of and Rule 174 under the Securities Act that is
applicable to transactions by brokers or dealers with respect to the Registrable Securities or Exchange Securities; 

(iii)    to the extent any Free Writing Prospectus is used, file with the SEC any Free Writing Prospectus that is
required to be filed by the Company with the SEC in accordance with the Securities Act and to retain any Free Writing Prospectus not required to be filed; 

(iv)    in the case of a Shelf Registration, furnish to each Participating Holder, to counsel for the Dealer Managers (if
any Registrable Securities held by a Dealer Manager are included in such Registration Statement), to counsel for such Participating Holders and to each Underwriter of an Underwritten Offering of Registrable Securities, if any, without charge, as
many copies of each Prospectus, preliminary prospectus or Free Writing Prospectus, and any amendment or supplement thereto, as such Participating Holder, counsel or Underwriter may reasonably request in order to facilitate the sale or other
disposition of the Registrable Securities thereunder; and, subject to Section 3(c) hereof, the Company consents to the use of such Prospectus, preliminary prospectus or such Free Writing Prospectus and any amendment or supplement thereto in
accordance with applicable law by each of the Participating Holders and any such Underwriters in connection with the offering and sale of the Registrable Securities covered by and in the manner described in such Prospectus, preliminary prospectus or
such Free Writing Prospectus or any amendment or supplement thereto in accordance with applicable law; 
 (v)    use
its commercially reasonable efforts to register or qualify the Registrable Securities under all applicable state securities or blue sky laws of such jurisdictions as any Participating Holder shall reasonably request in writing by the time the
applicable Registration Statement becomes effective; cooperate with such Participating Holders in connection with any filings required to be made with FINRA; and do any and all other acts and things that may be reasonably necessary or advisable to
enable each Participating Holder to complete the disposition in each such jurisdiction of the Registrable Securities owned by such Participating Holder; provided that the Company shall not be required to (1) qualify as a foreign
corporation or other entity or as a dealer in securities in any such jurisdiction where it would not otherwise be required to so qualify but for the requirements of this Section 3(a)(v), (2) file any general consent to service of process in any
such jurisdiction, (3) take any action that would subject it to the service of process in suits or to taxation in any jurisdiction where it is not then so subject or (4) make any change to its charter or
by-laws or similar organizational documents; 

  
 9 

 (vi)    notify counsel for the Dealer Managers and, in the case of a
Shelf Registration, notify each Participating Holder and counsel for such Participating Holders promptly and, if requested by any such Participating Holder or counsel, confirm such advice in writing (1) when a Registration Statement has become
effective, when any post-effective amendment thereto has been filed and becomes effective, when any Free Writing Prospectus has been filed or any amendment or supplement to the related Prospectus or any Free Writing Prospectus has been filed,
(2) of any request by the SEC or any state securities authority for amendments and supplements to a Registration Statement, the related Prospectus or any Free Writing Prospectus or for additional information after the Registration Statement has
become effective, (3) of the issuance by the SEC or any state securities authority of any stop order suspending the effectiveness of a Registration Statement or the initiation of any proceedings for that purpose, including the receipt by the
Company of any notice of objection of the SEC to the use of a Shelf Registration Statement or any post-effective amendment thereto pursuant to Rule 401(g)(2) under the Securities Act, or if the Company receives any notification with respect to the
suspension of the qualification of the Registrable Securities for sale in any jurisdiction or the initiation of any proceeding for such purpose, (4) of the happening of any event during the period a Registration Statement is effective that
makes any statement made in such Registration Statement or the related Prospectus or any Free Writing Prospectus untrue in any material respect or that requires the making of any changes in such Registration Statement or Prospectus or any Free
Writing Prospectus in order to make the statements therein not misleading and (5) of any determination by the Company that a post-effective amendment to a Registration Statement or any amendment or supplement to the related Prospectus or any
Free Writing Prospectus would be appropriate; 
 (vii)    use its commercially reasonable efforts to obtain the
withdrawal of any order suspending the effectiveness of a Registration Statement or, in the case of a Shelf Registration, the resolution of any objection of the SEC pursuant to Rule 401(g)(2) under the Securities Act, including by filing, if
necessary, an amendment to such Registration Statement on the proper form, as soon as reasonably practicable and provide prompt notice to each Holder or Participating Holder of the withdrawal of any such order or such resolution; 

(viii)    in the case of a Shelf Registration, furnish to each Participating Holder, upon its request, without charge, at
least one conformed copy of each Registration Statement and any post-effective amendment thereto (without any documents incorporated therein by reference or exhibits thereto, unless requested); 

(ix)    in the case of a Shelf Registration, cooperate with the Participating Holders to facilitate the timely
preparation and delivery of Registrable Securities to be sold and not bearing any restrictive legends and enable such Registrable Securities to be issued in such denominations and registered in such names (consistent with the provisions of the
Indenture) as such Participating Holders may reasonably request at least one Business Day prior to the closing of any sale of Registrable Securities; 

  
 10 

 (x)    subject to the Company’s right, pursuant to
Section 3(d), to suspend the disposition of Registrable Securities pursuant to a Registration Statement, upon the occurrence of any event contemplated by Section 3(a)(vi)(4) hereof, use its commercially reasonable efforts to prepare and
file with the SEC a supplement or post-effective amendment to the applicable Exchange Offer Registration Statement or Shelf Registration Statement or the related Prospectus or any Free Writing Prospectus or any document incorporated therein by
reference or file any other required document so that, as thereafter delivered (or, to the extent permitted by law, made available) to recipients of Exchange Securities or purchasers of the Registrable Securities, as applicable, such Prospectus or
Free Writing Prospectus, as the case may be, will not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements therein, in the light of the circumstances under which they were made, not
misleading; and the Company shall notify the Participating Holders (in the case of a Shelf Registration Statement) and the Dealer Managers and any Participating Broker-Dealers known to the Company (in the case of an Exchange Offer Registration
Statement) to suspend use of the related Prospectus or any Free Writing Prospectus as promptly as practicable after the occurrence of such an event, and such Participating Holders, such Participating Broker-Dealers and the Dealer Managers, as
applicable, hereby agree to suspend use of such Prospectus or Free Writing Prospectus, as the case may be, until the Company has amended or supplemented such Prospectus or Free Writing Prospectus, as the case may be, to correct such misstatement or
omission; 
 (xi)    subject to customary confidentiality agreements, a reasonable time prior to the filing of any
Registration Statement, any Prospectus, any Free Writing Prospectus, any amendment to a Registration Statement or amendment or supplement to a Prospectus or a Free Writing Prospectus, provide copies of such document to the Dealer Managers and their
counsel (and, in the case of an Underwritten Offering pursuant to a Shelf Registration Statement, to the Participating Holders and their counsel) and make representatives of the Company reasonably available to the Dealer Managers or their counsel
(and, in the case of an Underwritten Offering pursuant to a Shelf Registration Statement, the Majority Holders or their counsel) for a discussion of such document; and the Company shall not, at any time after initial filing of a Registration
Statement, use or file any Prospectus, any Free Writing Prospectus, any amendment of or supplement to a Registration Statement or a Prospectus or a Free Writing Prospectus, unless the Dealer Managers and their counsel (and, in the case of an
Underwritten Offering pursuant to a Shelf Registration Statement, the Majority Holders and their counsel) shall have previously been advised and furnished a copy and the Company shall have given reasonable consideration to their comments thereon, if
any; 
 (xii)    obtain a CUSIP number for all Exchange Securities or Registrable Securities, as the case may be, not
later than the initial effective date of a Registration Statement; 
 (xiii)    cause the Indenture to be qualified
under the Trust Indenture Act in connection with the registration of the Exchange Securities or Registrable Securities, as the case may be; cooperate with the Trustee and the Holders to effect such changes to the Indenture as may be required for the
Indenture to be so qualified in accordance with the terms of the Trust Indenture Act; and execute, and use its commercially reasonable efforts to cause the Trustee to execute, all documents as may be required to effect such changes and all other
forms and documents required to be filed with the SEC to enable the Indenture to be so qualified in a timely manner; 

  
 11 

 (xiv)    in the case of a Shelf Registration, and subject to customary
confidentiality agreements, make available for inspection, solely for due diligence purposes, by a representative of the Majority Holders (an “Inspector”), the managing Underwriters, if any, participating in any Underwritten
Offering pursuant to such Shelf Registration Statement and any attorneys and accountants designated by such managing underwriter, at reasonable times and in a reasonable manner, all pertinent financial and other records, documents and properties of
the Company and each of its subsidiaries that is a significant subsidiary within the meaning of such term as defined in Rule 1-02 of Regulation S-X of the SEC (the
“Significant Subsidiaries”), and cause the respective officers, directors and employees of the Company and the Significant Subsidiaries to supply all information reasonably requested by any such Inspector, managing underwriter,
attorney or accountant in connection with a Shelf Registration Statement; 
 (xv)    if reasonably requested by any
Participating Holder, promptly include in a Prospectus supplement or post-effective amendment such required information with respect to such Participating Holder as such Participating Holder reasonably requests to be included therein and make all
required filings of such Prospectus supplement or such post-effective amendment as soon as reasonably practicable after the Company has received notification of the matters to be so included in such filing; provided, that the Company shall
not be required to make more than two such filings on behalf of the Participating Holders in any 30-day period; and 

(xvi)    in the case of a Shelf Registration, enter into such reasonable and customary agreements and take all such other
reasonable and customary actions in connection therewith (including those reasonably requested by the Majority Holders) that are necessary in order to expedite or facilitate the disposition of such Registrable Securities including, but not limited
to, an Underwritten Offering and in such connection, (1) to the extent possible, make such representations and warranties to any Underwriters of such Registrable Securities with respect to the business of the Company and its subsidiaries and
the Registration Statement, Prospectus, any Free Writing Prospectus and documents incorporated by reference or deemed incorporated by reference, if any, in each case, in form, substance and scope as are customarily made by issuers to underwriters in
underwritten offerings and confirm the same if and when required by the underwriting agreement, (2) solely with respect to an Underwritten Offering, request opinions of counsel to the Company (which counsel, and which opinions (in form, scope
and substance), shall be reasonably satisfactory to such Underwriters and their respective counsel) addressed to each Underwriter of Registrable Securities, with customary limitations, assumptions and exclusions, and covering the matters customarily
covered in opinions requested in underwritten offerings, (3) solely with respect to an Underwritten Offering, request “comfort” letters from the independent registered public accountants of the Company (and, if necessary, any other
registered public accountant of any subsidiary of the Company, or of any business acquired by the Company for which financial statements and financial data are or are required to be included in the Registration Statement) addressed to each
Underwriter of Registrable Securities, such letters to be in customary form and covering matters of the type customarily covered in “comfort” letters in connection with underwritten offerings, including but not limited to financial
information contained in any preliminary prospectus, Prospectus or Free Writing 

  
 12 

 
Prospectus and (4) to the extent possible, deliver such documents and certificates as may be reasonably requested by the Underwriters, and which are customarily delivered in underwritten
offerings, to evidence the continued validity of the representations and warranties of the Company made pursuant to clause (1) above and to evidence compliance with any customary conditions contained in an underwriting agreement. 

(b)    In the case of a Shelf Registration Statement, the Company may require, as a condition to initial or continued
inclusion therein as a selling securityholder, each Holder of Registrable Securities to furnish to the Company a Notice and Questionnaire and such other information regarding such Holder and the proposed disposition by such Holder of such
Registrable Securities as the Company may from time to time reasonably request in writing. Each Holder as to which any Shelf Registration Statement is being effected agrees to furnish promptly to the Company all information required to be disclosed
in order to make the information previously furnished to the Company by such Holder not misleading and dispose of Registrable Securities in reliance on such Shelf Registration Statement only in compliance with the plan of distribution included
therein. 
 (c)    Each Participating Holder agrees that, upon receipt of any notice from the Company of the happening
of any event of the kind described in Section 3(a)(vi)(3) or Section 3(a)(vi)(4) hereof, such Participating Holder will forthwith discontinue disposition of Registrable Securities pursuant to the Shelf Registration Statement until such
Participating Holder’s receipt of the copies of the supplemented or amended Prospectus and any Free Writing Prospectus contemplated by Section 3(a)(x) hereof and, if so directed by the Company, such Participating Holder will deliver to the
Company all copies in its possession, other than permanent file copies then in such Participating Holder’s possession, of any Prospectus and any Free Writing Prospectus covering such Registrable Securities. 

(d)    If the Company shall give any notice to suspend the disposition of Registrable Securities pursuant to a
Registration Statement, the Company shall extend the period during which such Registration Statement shall be maintained effective (i) pursuant to clause (y)(i) of the first paragraph of Section 2(a), by the number of days (the
“Extension Period”) during the period from and including the date of the giving of such notice to and including the date when the Holders of such Registrable Securities shall have received copies of the supplemented or amended
Prospectus or any Free Writing Prospectus necessary to resume such dispositions or (ii) pursuant to clause (iii) of the third paragraph of Section 2(b), by the number of days that the Extension Period exceeds 90 days. Each
Participating Holder agrees to hold in confidence the fact that it has received such notice and any communication related thereto; provided, however, that the Company shall not give reasons for such suspension should it constitute material non-public information. 
 (e)    The Participating Holders who desire to do so may
sell such Registrable Securities in an Underwritten Offering. In any such Underwritten Offering, the investment bank or investment banks and manager or managers (each an “Underwriter”) that will administer the offering will be
selected by the Majority Holders, provided, that any such Underwriters shall be reasonably satisfactory to the Company. 

  
 13 

 (f)    No Holder may participate in any Underwritten Offering unless
such Holder (i) agrees to sell such Holder’s Registrable Securities on the basis provided in any underwriting arrangements approved by the Persons entitled hereunder to approve such arrangements and (ii) completes and executes all
questionnaires, powers of attorney, indemnities, underwriting agreements and other documents required under the terms of such underwriting arrangements. 

4.    Participation of Broker-Dealers in Exchange Offer. (a) The Staff has taken the position that any
broker-dealer that receives Exchange Securities for its own account in the Exchange Offer in exchange for Securities that were acquired by such broker-dealer as a result of market-making or other trading activities (a “Participating
Broker-Dealer”) may be deemed to be an “underwriter” within the meaning of the Securities Act and must deliver a prospectus meeting the requirements of the Securities Act in connection with any resale of such Exchange Securities.

 The Company understands that it is the Staff’s position that if the Prospectus contained in the Exchange Offer Registration
Statement includes a plan of distribution containing a statement to the above effect and the means by which Participating Broker-Dealers may resell the Exchange Securities, without naming the Participating Broker-Dealers or specifying the amount of
Exchange Securities owned by them, such Prospectus may be delivered by Participating Broker-Dealers (or, to the extent permitted by law, made available to purchasers) to satisfy their prospectus delivery obligation under the Securities Act in
connection with resales of Exchange Securities for their own accounts, so long as such Prospectus otherwise meets the requirements of the Securities Act. 

(b)    In light of the above, and notwithstanding the other provisions of this Agreement, the Company agrees to amend or
supplement the Prospectus contained in the Exchange Offer Registration Statement for a period ending on the earlier of (i) 90 days from the date on which the Exchange Offer Registration Statement is declared effective (as such period may be extended
pursuant to Section 3(d) hereof) and (ii) the date on which no Participating Broker-Dealer is required to deliver a prospectus in connection with such market-making or other trading activities, in order to expedite or facilitate the
disposition of any Exchange Securities by Participating Broker-Dealers consistent with the positions of the Staff recited in Section 4(a) above. The Company further agrees that, unless such Staff position is withdrawn, rescinded, superseded,
restricted or otherwise materially modified, Participating Broker-Dealers shall be authorized to deliver such Prospectus (or, to the extent permitted by law, make available) during such period in connection with the resales contemplated by this
Section 4. 
 (c)    The Dealer Managers shall have no liability to the Company or any Holder with respect to any
request that they may make pursuant to Section 4(b) hereof. 
 5.    Indemnification and Contribution.
(a) The Company (the “Indemnifying Party”) agrees to indemnify and hold harmless the Dealer Managers and each Holder, their respective affiliates, directors, officers and each Person, if any, who controls any Dealer Manager or
any Holder within the meaning of Section 15 of the Securities Act or Section 20 of the Exchange Act (the Dealer Managers, Holders and each such Person being an “Indemnified Party”) as follows (in the case of any Holder and
its affiliates, directors, officers and controlling persons, only with respect to a Shelf Registration by such Holder or, in the case of a Participating Broker-Dealer 

  
 14 

 
and its affiliates, directors, officers and controlling persons, only with respect to resales of Exchange Securities by such Participating Broker-Dealer in the manner contemplated by
Section 4): 
 (i)    from and against any and all losses, claims, damages and liabilities, joint or several, that
arise out of, or are based upon (1) any untrue statement or alleged untrue statement of a material fact contained in any Registration Statement, or any omission or alleged omission to state therein a material fact required to be stated therein
or necessary to make the statements therein not misleading or (2) any untrue statement or alleged untrue statement of a material fact contained in any Prospectus, any Free Writing Prospectus or any “issuer information”
(“Issuer Information”) filed or required to be filed pursuant to Rule 433(d) under the Securities Act, or any of the documents incorporated by reference therein, or the omission or alleged omission therefrom of a material fact
necessary in order to make the statements therein, in the light of the circumstances under which they were made, not misleading, in each case except insofar as such losses, claims, damages or liabilities arise out of, or are based upon, any untrue
statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to the Dealer Managers or information relating to any Holder furnished to the Company in writing (including, without
limitation, a Notice and Questionnaire of such Holder) through the Dealer Managers or any selling Holder, respectively, expressly for use therein. 

(ii)    from and against any and all loss, liability, claim or damage, to the extent of the aggregate amount paid in
settlement of any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or of any claim whatsoever related to, arising out of or based on any matter for which the Indemnified Party is entitled to
indemnification pursuant to subparagraph (i) above, provided any such settlement shall be effected with the prior written consent of the Indemnifying Party, which shall not be unreasonably withheld, delayed or conditioned; and 

(iii)    from and against any and all reasonable expense, as incurred (including the reasonable fees and disbursements of
counsel chosen by the Dealer Managers or Holder, as applicable), incurred in investigating, preparing or defending against any litigation, or investigation or proceeding by any governmental agency or body, commenced or threatened, or any claim
whatsoever related to, arising out of or based on any matter for which the Indemnified Party is entitled to indemnification pursuant to subparagraph (i) or (ii) above. 

(b)    Each Holder agrees, severally and not jointly, to indemnify and hold harmless the Company, the Dealer Managers and
the other selling Holders, the directors of the Company, each officer of the Company who signed the Registration Statement and each Person, if any, who controls the Company, any Dealer Manager and any other selling Holder within the meaning of
Section 15 of the Securities Act or Section 20 of the Exchange Act to the same extent as the indemnity set forth in subsection (a) above, but only with respect to any losses, claims, damages, liabilities, amounts paid in settlement or
expenses that arise out of, or are based upon, any untrue statement or omission or alleged untrue statement or omission made in reliance upon and in conformity with any information relating to such Holder furnished to the Company in writing by such
Holder expressly for use in any Registration Statement, any Prospectus and any Free Writing Prospectus; 

  
 15 

 (c)    Promptly after receipt by an Indemnified Party of written notice
of the assertion of any claim or the commencement of any action or proceeding with respect to which indemnification may be sought hereunder, such Indemnified Party shall notify the Indemnifying Party in writing of such claim or of the commencement
of such action or proceeding. Failure by any Indemnified Party to so notify the Indemnifying Party shall relieve the Indemnifying Party from the obligation to indemnify such Indemnified Party under subsection (a) above only to the extent that
the Indemnifying Party did not otherwise learn of such claim, action or proceeding and suffers actual prejudice as a result of such failure but in no event shall such failure to notify the Indemnifying Party (i) constitute prejudice suffered by
the Indemnifying Party if the Indemnifying Party has otherwise received notice of the actions giving rise to such obligation to indemnify or (ii) relieve the Indemnifying Party from any liability or obligation the Indemnifying Party may
otherwise have to such Indemnified Party. In the event of any such claim, action or proceeding, if such Indemnified Party shall notify the Indemnifying Party of the assertion or commencement thereof, the Indemnifying Party will be entitled to
participate therein and, to the extent that it may wish, to assume the defense thereof, with counsel reasonably satisfactory to such Indemnified Party, and shall pay the fees and reasonable expenses of such counsel; after notice from the
Indemnifying Party to such Indemnified Party of its election so to assume the defense thereof, the Indemnifying Party will not be liable to such Indemnified Party under this Section 5 for any legal or other expenses subsequently incurred by
such Indemnified Party in connection with the defense thereof, other than reasonable costs of investigation, except to the extent that (i) the use of counsel chosen by the Indemnifying Party to represent the Indemnified Party would present such
counsel with a conflict of interest; (ii) the Indemnifying Party fails to assume such defense in a timely manner; (iii) the actual or potential defendants in, or targets of, such claim, action or proceeding including both the Indemnified
Party and the Indemnifying Party, and the Indemnified Party shall have reasonably concluded that there may be one or more legal defenses available to it which are different from or additional to those available to the Indemnifying Party or
(iv) the Indemnifying Party shall have authorized in writing the employment of counsel for the Indemnified Party at the expense of the Indemnifying Party; provided, however, that in no event shall the Indemnifying Party, in connection with any
one such action or separate but similar or related actions in the same jurisdiction arising out of the same general allegations or circumstances, be liable for the fees and expenses of more than one firm of attorneys (in addition to one local
counsel in any jurisdiction) separate from its own counsel for all Indemnified Parties. 
 (d)    If the indemnification
provided for in Section 5(a) and (b) hereof is for any reason unavailable to or insufficient to hold harmless an Indemnified Party (which for purposes of this Section 5(d) shall include the Company and the other persons indemnified
pursuant to Section 5(b)) in respect of any losses, liabilities, claims, damages or expenses referred to therein, then the Indemnifying Party (which for purposes of this Section 5(d) shall include the indemnifying Holders pursuant to
Section 5(b)) agrees to contribute to the aggregate amount paid or payable by the Indemnified Party in respect of such losses, liabilities, claims, damages and expenses incurred by such Indemnified Party, as incurred, (i) in such
proportion as is appropriate to reflect the relative benefits to the Company from the offering of the Securities and the Exchange Securities on the one hand and to the Dealer Managers from serving as dealer managers or to the Holders from receiving
Securities or Exchange Securities registered under the Securities Act on the other hand or (ii) if, but only if, the allocation provided by clause (i) is for any reason held unenforceable, in such proportion as is appropriate to reflect
not only the relative 

  
 16 

 
benefits referred to in clause (i) above but also the relative fault of the Company on the one hand and of the Dealer Managers and the Holders on the other hand in connection with the
statements or omissions which resulted in such losses, liabilities, claims, damages or expenses, as well as any other relevant equitable considerations. The relative fault of the Company on the one hand and the Dealer Managers and the Holders on the
other hand shall be determined by reference to, among other things, whether any such untrue or alleged untrue statement of a material fact or omission or alleged omission to state a material fact relates to information supplied by the Company or by
the Dealer Managers or the Holders and the parties’ relative intent, knowledge, access to information and opportunity to correct or prevent such statement or omission. The Company, the Dealer Managers and the Holders agree that it would not be
just and equitable if contribution pursuant to this Section 5(d) were determined by pro rata allocation (even if the Holders were treated as one entity for such purpose) or by any other method of allocation which does not take account of
the equitable considerations referred to above in this Section 5(d). The aggregate amount of losses, liabilities, claims, damages and expenses incurred by an Indemnified Party and referred to above in this Section 5(e) shall be deemed to
include any legal or other expenses reasonably incurred by such Indemnified Party in investigating, preparing or defending against any litigation, or any investigation or proceeding by any governmental agency or body, commenced or threatened, or any
claim whatsoever based upon any such untrue or alleged untrue statement or omission or alleged omission Notwithstanding the provisions of this Section 5, in no event shall a Holder be required to contribute any amount in excess of the amount by
which the total price at which the Securities or Exchange Securities sold by such Holder exceeds the amount of any damages that such Holder has otherwise been required to pay by reason of such untrue or alleged untrue statement or omission or
alleged omission. No person guilty of fraudulent misrepresentation (within the meaning of Section 11(f) of the Securities Act) shall be entitled to contribution from any person who was not guilty of such fraudulent misrepresentation. 

(e)    The Indemnifying Party agrees that, without the Indemnified Party’s prior written consent (such consent not to
be unreasonably withheld, conditioned or delayed), it will not settle, compromise or consent to the entry of any judgment in or with respect to any pending or threatened claim, action, investigation or proceeding in respect of which indemnification
or contribution could be sought under this Section 5 (whether or not the Indemnified Party is an actual or potential party to such claim, action, investigation or proceeding), unless such settlement, compromise or consent (i) includes an
unconditional release of each Indemnified Party from all liability arising out of such claim, action, investigation or proceeding and (ii) does not include a statement as to, or an admission of, fault, culpability or a failure to act by or on
behalf of an Indemnified Party. The Indemnifying Party shall not be liable for any settlement, compromise, or consent to the entry of any judgment in any claim, action, investigation or proceeding in respect of which indemnification or contribution
could be sought under this Section 5 (whether or not the Indemnified Party is an actual or potential party to such claim, action, investigation or proceeding) without the written consent of the Indemnifying Party (such consent not to be
unreasonably withheld, conditioned or delayed). 
 (f)    The rights of any Indemnified Party under this Section shall
be in addition to and not in limitation of any rights that any Indemnified Party may have at common law or otherwise. 

  
 17 

 (i)    The indemnity and contribution provisions contained in this
Section 5 shall remain operative and in full force and effect regardless of (i) any termination of this Agreement, (ii) any investigation made by or on behalf of any Dealer Manager or any Holder or any Person controlling any Dealer
Manager or any Holder, or by or on behalf of the Company or the officers or directors of or any Person controlling the Company, (iii) acceptance of any of the Exchange Securities and (iv) any sale of Registrable Securities pursuant to a
Shelf Registration Statement. 
 6.    General. 

(a)    No Inconsistent Agreements. The Company represents, warrants and agrees that (i) the rights granted to
the Holders hereunder do not in any way conflict with and are not inconsistent with the rights granted to the holders of any other outstanding securities issued or guaranteed by the Company under any other agreement and (ii) the Company has not
entered into, and on or after the date of this Agreement will not enter into, any agreement that is inconsistent with the rights granted to the Holders of Registrable Securities in this Agreement or otherwise conflicts with the provisions hereof.

 (b)    Amendments and Waivers. The provisions of this Agreement, including the provisions of this sentence,
may not be amended, modified or supplemented, and waivers or consents to departures from the provisions hereof may not be given without the written consent of the Company and Holders of at least a majority in aggregate principal amount of the
outstanding Registrable Securities affected by such amendment, modification, supplement, waiver or consent. Any amendments, modifications, supplements, waivers or consents pursuant to this Section 6(b) shall be effectuated by a writing executed
by each of the parties hereto. Each Holder of Registrable Securities outstanding at the time of any such amendment, modification, supplement, waiver or consent thereafter shall be bound by any such amendment, modification, supplement, waiver or
consent effected pursuant to this Section 6(b), whether or not any notice, writing or marking indicating such amendment, modification, supplement, waiver or consent appears on the Registrable Securities or is delivered to such Holder. Each
Holder may waive compliance with respect to any obligation of the Company under this Agreement as it may apply or be enforced by such particular Holder. 

(c)    Notices. All notices and other communications provided for or permitted hereunder shall be made in writing
by hand-delivery, registered first-class mail, facsimile transmission, electronic transmission or any courier guaranteeing overnight delivery (i) if to a Holder, at the most current address given by such Holder to the Company by means of a
notice given in accordance with the provisions of this Section 6(c), which address initially is, with respect to any Dealer Manager, its address set forth in the Dealer Manager Agreement; (ii) if to the Company, initially at the
Company’s address set forth in the Dealer Manager Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c); and (iii) to such other persons at their respective
addresses as provided in the Dealer Manager Agreement and thereafter at such other address, notice of which is given in accordance with the provisions of this Section 6(c). All such notices and communications shall be deemed to have been duly
given: at the time delivered by hand, if personally delivered; five Business Days after being deposited in the mail, postage prepaid, if mailed; when receipt is acknowledged, if telecopied or electronically transmitted; and on the next Business Day
if timely 

  
 18 

 
delivered to an air courier guaranteeing overnight delivery. Copies of all such notices, demands or other communications shall be concurrently delivered by the Person giving the same to the
Trustee, at the address specified in the Indenture. 
 (d)    Successors and Assigns. This Agreement shall inure
to the benefit of and be binding upon the successors, assigns and transferees of each of the parties, including, without limitation and without the need for an express assignment, subsequent Holders; provided that nothing herein shall be
deemed to permit any assignment, transfer or other disposition of Registrable Securities in violation of the terms of the Dealer Manager Agreement or the Indenture. If any transferee of any Holder shall acquire Registrable Securities in any manner,
whether by operation of law or otherwise, such Registrable Securities shall be held subject to all the terms of this Agreement, and by taking and holding such Registrable Securities such Person shall be conclusively deemed to have agreed to be bound
by and to perform all of the terms and provisions of this Agreement and such Person shall be entitled to receive the benefits hereof. No Dealer Manager (in its capacity as Dealer Manager) shall have any liability or obligation to the Company with
respect to any failure by a Holder to comply with, or any breach by any Holder of, any of the obligations of such Holder under this Agreement. 

(e)    Third-Party Beneficiaries. Each Holder shall be a third-party beneficiary to the agreements made hereunder
between the Company, on the one hand, and the Dealer Managers, on the other hand, and shall have the right to enforce such agreements directly to the extent it deems such enforcement necessary or advisable to protect its rights or the rights of
other Holders hereunder. 
 (f)    Counterparts. This Agreement may be executed in any number of counterparts and
by the parties hereto in separate counterparts, each of which when so executed shall be deemed to be an original and all of which taken together shall constitute one and the same agreement. Delivery of an executed Agreement by one party to any other
party hereto may be made by facsimile, electronic mail (including any electronic signature complying with the New York Electronic Signatures and Records Act (N.Y. State Tech. §§ 301-309), as amended
from time to time, or other applicable law) or other transmission method, and the parties hereto agree that any counterpart so delivered shall be deemed to have been duly and validly delivered and be valid and effective for all purposes. 

(g)    Headings. The headings in this Agreement are for convenience of reference only, are not a part of this
Agreement and shall not limit or otherwise affect the meaning hereof. 
 (h)    Governing Law. This Agreement,
and any claim, controversy or dispute arising under or related to this Agreement, shall be governed by and construed in accordance with the laws of the State of New York. 

(i)    Entire Agreement; Severability. This Agreement contains the entire agreement between the parties relating to
the subject matter hereof and supersedes all oral statements and prior writings with respect thereto. If any term, provision, covenant or restriction contained in this Agreement is held by a court of competent jurisdiction to be invalid, void or
unenforceable or against public policy, the remainder of the terms, provisions, covenants and 

  
 19 

 
restrictions contained herein shall remain in full force and effect and shall in no way be affected, impaired or invalidated. The Company, and the Dealer Managers shall endeavor in good faith
negotiations to replace the invalid, void or unenforceable provisions with valid provisions the economic effect of which comes as close as possible to that of the invalid, void or unenforceable provisions. 

  
 20 

 IN WITNESS WHEREOF, the parties have executed this Agreement as of the date first written
above. 
  

			
	BIOGEN INC.
		
	By	 	 /s/ Michael Dambach

	Name:	 	Michael Dambach
	Title:	 	Vice President, Treasurer

 [Signature Page to Registration Rights Agreement - Company] 

 Confirmed and accepted as of the date first above written: 

DEUTSCHE BANK SECURITIES INC. 
  

			
	By	 	 /s/ Ryan E. Montgomery

	Name:	 	Ryan E. Montgomery
	Title:	 	Managing Director
		
	By	 	 /s/ Kevin Prior

	Name:	 	Kevin Prior
	Title:	 	Director

 CITIGROUP GLOBAL MARKETS INC. 
  

			
	By	 	 /s/ Adam D. Bordner

	Name:	 	Adam D. Bordner
	Title:	 	Director

 As Dealer Managers 

[Signature Page to Registration Rights Agreement – Dealer Managers]

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