Document:

Exhibit 4.68

 Exhibit 4.68 
 FIRST SUPPLEMENTAL WARRANT AGREEMENT 
 FIRST SUPPLEMENTAL WARRANT AGREEMENT (this “Supplemental
Warrant Agreement”) dated as of this 28th day of July, 2008 among Sirius Satellite Radio Inc., a Delaware corporation (“Sirius”), XM Satellite Radio Holdings Inc., a Delaware corporation (“Holdings”) and
The Bank of New York Mellon (formerly known as the Bank of New York), a New York banking corporation, as the Warrant Agent (the “Warrant Agent”). 
 WHEREAS, Holdings and the Warrant Agent entered into a Warrant Agreement on January 28, 2003 (the “Warrant Agreement”), providing for the issuance of common stock purchase warrants (the
“Warrants”) to purchase up to an aggregate of 25,514,960 shares of Class A common stock, par value $.01 per share (the “Class A Common Stock”) of Holdings (the Class A Common Stock issuable on exercise of
the Warrants being referred to herein as the “Warrant Shares”). 
 WHEREAS, Section 8.13 of the Warrant Agreement
provides that, in the event of a merger of Holdings with or into any person, upon consummation of such transaction each Warrant shall automatically become exercisable for the kind and amount of securities, cash or other assets which the holder of a
Warrant would have owned immediately after the merger if the holder had exercised the Warrant immediately before the effective date of the transaction; 
 WHEREAS, pursuant to the Agreement and Plan of Merger, dated as of February 19, 2007, among Sirius, Vernon Merger Corporation, a Delaware corporation and a direct wholly-owned subsidiary of Sirius
(“Merger Co.”) and Holdings, Merger Co. has merged with and into Holdings (the “Merger”) and, in connection therewith, each Warrant automatically became exercisable for 391 shares of common stock of Sirius, par
value $0.001 per share (the “Sirius Common Stock”), in accordance with Section 8.13 of the Warrant Agreement; 
 WHEREAS, Sirius desires by this Supplemental Warrant Agreement to expressly, irrevocably and unconditionally assume the covenants, agreements, obligations and undertakings of Holdings under the Warrant Agreement and the Warrants;

 NOW, THEREFORE, in consideration of the foregoing and for other good and valuable consideration, the receipt of which is hereby
acknowledged, each party agrees, for the benefit of the others and for the equal and ratable benefit of the holders of the Warrants as follows: 
 SECTION 1. DEFINITIONS. For all purposes of this Supplemental Warrant Agreement, except as otherwise herein expressly provided or unless the context otherwise requires, the terms and expressions used herein shall have the same meanings as
corresponding terms and expressions used in the Warrant Agreement. 
  

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 SECTION 2. NOTICE TO HOLDERS. Sirius hereby agrees to mail the holders of the Warrants a notice
describing this Supplemental Warrant Agreement in accordance with Section 8.13 of the Warrant Agreement. 
 SECTION 3. ASSUMPTION
OF OBLIGATIONS OF SIRIUS. Sirius hereby expressly, irrevocably and unconditionally assumes each and every covenant, agreement, obligation and undertaking of Holdings in the Warrant Agreement as if Sirius had been named the Company in the Warrant
Agreement and the original issuer of the Warrants, and also hereby expressly, irrevocably and unconditionally assumes each and every covenant, agreement, obligation and undertaking of Holdings in each Warrant outstanding on the date of this
Supplemental Warrant Agreement. 
 SECTION 4. FURTHER ASSURANCES. Sirius hereby agrees, from time to time, to do and perform any and all
acts and to execute any and all further instruments reasonably necessary to more fully effect the purposes of this Supplemental Warrant Agreement and the Warrant Agreement. 
 SECTION 5. ADJUSTMENT. In accordance with the provisions of Section 8.13 of the Warrant Agreement, concurrent with the effective time of the
Merger, each Warrant automatically becomes exercisable for 391 shares of Sirius Common Stock at the Exercise Price of $0.69 per share payable to the Warrant Agent for the account of Sirius. 
 SECTION 6. EFFECT OF SUPPLEMENTAL WARRANT AGREEMENT. Upon the execution and delivery of this Supplemental Warrant Agreement by Sirius, Holdings and
the Warrant Agent, the Warrant Agreement shall be supplemented in accordance herewith, and this Supplemental Warrant Agreement shall form a part of the Warrant Agreement for all purposes, and every holder of a Warrant heretofore or hereafter
countersigned and delivered under the Warrant Agreement shall be bound hereby. 
 SECTION 7. WARRANT CERTIFICATES. The registered holder
of a Warrant Certificate may request Sirius to exchange his or her Warrant Certificate for a warrant certificate substantially in the form set forth in Exhibit A attached hereto (a “New Warrant Certificate”), and Sirius may issue
New Warrant Certificates in its sole discretion. 
 SECTION 8. WARRANT AGREEMENT REMAINS IN FULL FORCE AND EFFECT. Except as expressly
supplemented hereby, the Warrant Agreement is in all respects ratified and confirmed and all terms, conditions and provisions of the Warrant Agreement shall remain in full force and effect. 
 SECTION 9. WARRANT AGREEMENT AND SUPPLEMENTAL WARRANT AGREEMENT CONSTRUED TOGETHER. This Supplemental Warrant Agreement is a warrant agreement
supplemental to and in implementation of the Warrant Agreement, and the Warrant Agreement and this Supplemental Warrant Agreement shall be read and construed together. 
  

 2 

 SECTION 10. NOTICES TO SIRIUS AND THE WARRANT AGENT. Any notice or demand authorized or permitted by
the Warrant Agreement to be given or made by the Warrant Agent or by the registered holder of any Warrant Certificate to or on Sirius shall be sufficiently given or made when and if deposited in the mail, first class or registered, postage prepaid,
addressed (until another address is filed in writing by Sirius with the Warrant Agent), as follows: 
 Sirius Satellite Radio Inc. 
 1221 Avenue of the Americas 
 New York, New York 10020 
 Attention: Patrick Donnelly 
 Facsimile No.: (212) 584-5353 
 With a copy to: 
 Simpson Thacher & Bartlett LLP 
 425 Lexington Avenue 
 New York, New York 10017 
 Attention: Gary L. Sellers, Esq. 
                  Kathryn King Sudol, Esq. 
 Facsimile No.:
(212) 455-2502 
 In case Sirius shall fail to maintain such office or agency or shall fail to give such notice of the location or of any change in the
location thereof, presentations may be made and notices and demands may be served at the principal office of the Warrant Agent. 
 Any notice pursuant to
this Supplemental Warrant Agreement or the Warrant Agreement to be given by Sirius or by the registered holder(s) of any Warrant Certificate to the Warrant Agent shall be sufficiently given when and if deposited in the mail, first-class or
registered, postage prepaid, addressed (until another address is filed in writing by the Warrant Agent with Sirius) to the Warrant Agent, as follows: 
 The
Bank of New York Mellon 
 101 Barclay Street, Floor 8 West 
 New
York, New York 10286 
 Attention: Corporate Trust Administration 
 SECTION 11. SUCCESSORS. All the covenants and provisions of this Supplemental Warrant Agreement by or for the benefit of Sirius or the Warrant Agent shall bind and inure to the benefit of their respective
successors and assigns hereunder. 
 SECTION 12. TERMINATION. This Supplemental Warrant Agreement shall terminate at 5:00 p.m., New York City
time on December 31, 2009. Notwithstanding the foregoing, this Supplemental Warrant Agreement will terminate earlier upon the termination of the Warrant Agreement. 
  

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 SECTION 13. GOVERNING LAW; JURISDICTION. This Supplemental Warrant Agreement and each Warrant
Certificate issued hereunder shall be deemed to be a contract made under the laws of the State of New York and for all purposes shall be construed in accordance with the internal laws of said State. The parties hereto hereby waive the right to a
jury trial in any action arising out of this Supplemental Warrant Agreement. Any dispute arising out of this Supplemental Warrant Agreement shall be litigated in the borough of Manhattan, New York City, New York, and the parties hereby submit to the
jurisdiction of such courts and acknowledge that such courts are a convenient forum. 
 SECTION 14. BENEFITS OF SUPPLEMENTAL WARRANT
AGREEMENT. Nothing in this Supplemental Warrant Agreement shall be construed to give to any person or corporation other than Sirius, Holdings, the Warrant Agent and the registered holders of the Warrant Certificates any legal or equitable right,
remedy or claim under this Supplemental Warrant Agreement; but this Supplemental Warrant Agreement shall be for the sole and exclusive benefit of Sirius, Holdings, the Warrant Agent and the holders. 
 SECTION 15. COUNTERPARTS. This Supplemental Warrant Agreement may be executed in counterparts and each of such counterparts shall for all purposes
be deemed to be an original, and both such counterparts shall together constitute but one and the same instrument. 
 SECTION 16. WARRANT
AGENT’S DISCLAIMER. The recitals contained herein shall be taken as the statements of Sirius and Holdings, as the case may be, and the Warrant Agent assumes no responsibility for their correctness. The Warrant Agent makes no representation as
to the validity or sufficiency of this Supplemental Warrant Agreement or as to the validity or value of any securities or assets issued upon exercise of Warrants. 
 [signature page follows] 
  

 4 

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

			
	SIRIUS SATELLITE RADIO INC.
		
	By:	 	 /s/ Patrick L. Donnelly

	Name:	 	Patrick L. Donnelly
	Title:	 	 Executive Vice President,
 General Counsel &
Secretary

	
	XM SATELLITE RADIO HOLDINGS INC.
		
	By:	 	 /s/ Joseph J. Euteneuer

	Name:	 	Joseph J. Euteneuer
	Title:	 	 Executive Vice President and
 Chief Financial Officer

	
	 THE BANK OF NEW YORK MELLON
 as Warrant Agent

		
	By:	 	 /s/ Remo J. Reale

	Name:	 	Remo J. Reale
	Title:	 	Vice President

 [BNY Supplemental Warrant Agreement] 

 EXHIBIT A 
 FORM OF WARRANT 
 [Face of Warrant Certificate] 
 [Insert Global Warrant Legend, if applicable pursuant to the terms of the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement] 
 NOTWITHSTANDING ANY PROVISIONS OF THIS WARRANT OR ANY OTHER DOCUMENT TO THE CONTRARY, IN THE EVENT THAT THE CONSENT OF THE FEDERAL COMMUNICATIONS
COMMISSION (“FCC”) TO THE EXERCISE OF THIS WARRANT IS REQUIRED TO BE OBTAINED PRIOR TO SUCH EXERCISE, THIS WARRANT SHALL NOT BE EXERCISABLE UNLESS AND UNTIL SUCH FCC CONSENT SHALL HAVE BEEN OBTAINED. IN THE EVENT THAT THIS WARRANT
IS INTENDED TO BE EXERCISED AND SUCH FCC CONSENT IS REQUIRED TO BE OBTAINED, SIRIUS AND THE HOLDER SHALL USE COMMERCIALLY REASONABLE EFFORTS TO OBTAIN SUCH FCC CONSENT PROMPTLY. 
 NOTWITHSTANDING ANY PROVISIONS OF THIS WARRANT OR ANY OTHER DOCUMENT TO THE CONTRARY, INCLUDING BUT NOT LIMITED TO THE PRECEDING PARAGRAPH, THIS WARRANT
SHALL NOT BE EXERCISABLE IN THE EVENT THAT SUCH EXERCISE WOULD CAUSE THE AGGREGATE ALIEN OWNERSHIP OR VOTING INTEREST IN SIRIUS TO INCREASE TO ANY LEVEL ABOVE 24.5%, AS DETERMINED BY APPLICABLE FCC RULES, REGULATIONS, AND POLICIES, IT BEING WELL
UNDERSTOOD THAT THIS WARRANT SHALL NOT BE EXERCISABLE IN THE EVENT THAT SUCH ALIEN OWNERSHIP OR VOTING INTEREST ALREADY EXCEEDS 24.5%, IT BEING FURTHER UNDERSTOOD THAT IN NO EVENT SHALL SIRIUS BE REQUIRED HEREUNDER TO SEEK FCC CONSENT TO EXCEED FCC
ALIEN OWNERSHIP OR VOTING LIMITATIONS APPLICABLE TO SIRIUS. 
  

			
	 No.             
	  	                     Warrants

 Warrant Certificate 
 SIRIUS SATELLITE RADIO INC. 
 This Warrant Certificate certifies that
                            , or registered assigns, is the registered holder of Warrants expiring
December 31, 2009 (the “Warrants”) to purchase Sirius Common Stock. Each Warrant entitles the holder upon exercise to receive from Sirius commencing on January 28, 2003 until 5:00 p.m. New York City time on
December 31, 2009, the number of fully paid and nonassessable Warrant Shares as set forth in the Warrant Agreement, dated as of January 28, 2003 (the “Warrant Agreement”), as supplemented by the First Supplemental Warrant
Agreement, dated as of 

  

 A-1 

 
the      day of July, 2008 (the “Supplemental Warrant Agreement”), subject to adjustment as set forth in
Section 8 of the Warrant Agreement, at the initial exercise price (the “Exercise Price”) of $0.69 per share payable upon surrender of this Warrant Certificate and payment of the Exercise Price at the office or agency of the
Warrant Agent, but only subject to the conditions set forth herein and in the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement, referred to on the reverse hereof. Notwithstanding the foregoing, Warrants may be exercised
without the exchange of funds pursuant to the cashless exercise provisions of Section 4 of the Warrant Agreement. The Exercise Price and number of Warrant Shares issuable upon exercise of the Warrants are subject to adjustment upon the
occurrence of certain events set forth in the Warrant Agreement. No Warrant may be exercised after 5:00 p.m., New York City time, on December 31, 2009, and to the extent not exercised by such time such Warrants shall become void. Reference is
hereby made to the further provisions of this Warrant Certificate set forth on the reverse hereof and such further provisions shall for all purposes have the same effect as though fully set forth at this place. This Warrant Certificate shall not be
valid unless countersigned by an authorized signatory of the Warrant Agent, as such term is used in the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement. This Warrant Certificate shall be governed and construed in accordance
with the internal laws of the State of New York. 
 [signature page follows] 
  

 A-2 

 IN WITNESS WHEREOF, Sirius Satellite Radio Inc. has caused this Warrant Certificate to be signed by its President and
Treasurer and by its Vice President and Secretary and may cause its corporate seal to be affixed hereunto or imprinted hereon. 
 Dated:
            , 200     
  

			
	 SIRIUS SATELLITE RADIO INC.

		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	
		
	 By:
	 	  

	 Name:
	 	
	 Title:
	 	

 Date of Countersignature: 
             , 200     
 Certificate of Authentication: 
 This is one of the Warrants referred to in the within mentioned Warrant Agreement, as supplemented by the
Supplemental Warrant Agreement. 
  

			
	 THE BANK OF NEW YORK MELLON
 as Warrant Agent

		
	 By:
	 	  

		 	Authorized Signatory

  

 A-3 

 [Reverse of Warrant Certificate] 
 The Warrants evidenced by this Warrant Certificate are part of a duly authorized issue of Warrants expiring December 31, 2009 on exercise to receive
shares of Sirius Common Stock, and are issued or to be issued pursuant to a Warrant Agreement dated as of January 28, 2003 (the “Warrant Agreement”), as supplemented by the First Supplemental Warrant Agreement dated as of the
     day of July, 2008 (the “Supplemental Warrant Agreement”), duly executed and delivered by Sirius to The Bank of New York Mellon, as warrant agent (the “Warrant Agent”), which Warrant
Agreement, as supplemented by the Supplemental Warrant Agreement, (including the definitions set forth therein) is hereby incorporated by reference in and made a part of this instrument and is hereby referred to for a description of the rights,
limitation of rights, obligations, duties and immunities thereunder of the Warrant Agent, Sirius and the holders (the words “holders” or “holder” meaning the registered holders or registered holder) of the Warrants. A copy of the
Warrant Agreement and Supplemental Warrant Agreement may be obtained by the holder hereof upon written request to Sirius. 
 Warrants may be
exercised at any time on or before December 31, 2009; provided that holders shall be required to make payment of the Exercise Price upon exercise of their Warrants only by means of a Cashless Exercise, as provided in Section 4.3 of the
Warrant Agreement, unless a registration statement relating to the Warrant Shares is then in effect under the Securities Act of 1933, as amended (the “Securities Act”), and the making of offers and sales of the Warrant Shares
thereunder has not been suspended or terminated in accordance with the provisions of Section 16 of the Warrant Agreement (the periods in which such conditions are met being referred to herein as “Registered Periods”). In order
to exercise all or any of the Warrants represented by this Warrant Certificate, (i) in the case of Definitive Warrants, the holder must surrender for exercise this Warrant Certificate to the Warrant Agent at its New York corporate trust office
set forth in Section 17 of the Warrant Agreement, (ii) in the case of a book-entry interest in a Global Warrant, the exercising Participant whose name appears on a securities position listing of the Depositary as the holder of such
book-entry interest must comply with the Depositary’s procedures relating to the exercise of such book-entry interest in such Global Warrant and (iii) in the case of both Global Warrants and Definitive Warrants, the holder thereof or the
Participant, as applicable, must deliver to the Warrant Agent the form of election to purchase on the reverse hereof duly filled in and signed, which signature shall be a medallion guaranteed by an institution which is a member of a Securities
Transfer Association recognized signature guarantee program, and upon payment to the Warrant Agent for the account of Sirius of the Exercise Price, as adjusted as provided in the Warrant Agreement, as supplemented by the Supplemental Warrant
Agreement, for the number of Warrant Shares in respect of which such Warrants are then exercised. No adjustment shall be made for any dividends on any Sirius Common Stock issuable upon exercise of this Warrant. 
 The Warrant Agreement, as supplemented by the Supplemental Warrant Agreement, provides that upon the occurrence of certain events the Exercise Price set
forth on the face hereof may, subject to certain conditions, be adjusted. If the Exercise 

  

 A-4 

 
Price is adjusted, the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement, provides that the number of shares of Sirius Common Stock
issuable upon the exercise of each Warrant shall be adjusted. No fractions of a share of Sirius Common Stock will be issued upon the exercise of any Warrant, but Sirius will pay the cash value thereof determined as provided in the Warrant Agreement,
as supplemented by the Supplemental Warrant Agreement. 
 Sirius has agreed to use its Commercially Reasonable Efforts (subject to Black Out
Periods) to (i) file within 90 days after the date of the Supplemental Warrant Agreement, a Shelf Registration Statement on an appropriate form under the Securities Act covering the issuance of Warrant Shares upon exercise of the Warrants,
(ii) make the Shelf Registration Statement effective no later than 180 days after the date of the Supplemental Warrant Agreement, and (iii) keep the Shelf Registration Statement effective until the earlier of the second anniversary of the
date on which such Shelf Registration Statement is declared effective by the Commission or such time as all Warrants have been exercised and all Warrant Shares have been issued in respect thereof. 
 Warrant Certificates, when surrendered at the office of the Warrant Agent by the registered holder thereof in person or by legal representative or
attorney duly authorized in writing, may be exchanged, in the manner and subject to the limitations provided in the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement, but without payment of any service charge, for another
Warrant Certificate or Warrant Certificates of like tenor evidencing in the aggregate a like number of Warrants. 
 Upon due presentation for
registration of transfer of this Warrant Certificate at the office of the Warrant Agent a new Warrant Certificate or Warrant Certificates of like tenor and evidencing in the aggregate a like number of Warrants shall be issued to the transferee(s) in
exchange for this Warrant Certificate, subject to the limitations provided in the Warrant Agreement, as supplemented by the Supplemental Warrant Agreement, without charge except for any tax or other governmental charge imposed in connection
therewith. 
 Sirius and the Warrant Agent may deem and treat the registered holder(s) thereof as the absolute owner(s) of this Warrant
Certificate (notwithstanding any notation of ownership or other writing hereon made by anyone), for the purpose of any exercise hereof, of any distribution to the holder(s) hereof, and for all other purposes, and neither Sirius nor the Warrant Agent
shall be affected by any notice to the contrary. Neither the Warrants nor this Warrant Certificate entitles any holder hereof to any rights of a stockholder of Sirius. 
  

 A-5 

 FORM OF ELECTION TO PURCHASE 
 (To Be Executed Upon Exercise Of Warrant) 
 The undersigned hereby irrevocably elects to exercise the right,
represented by this Warrant Certificate, to receive shares of Sirius Common Stock upon payment by the undersigned of the Exercise Price in effect as of the date hereof for the Warrants being surrendered. 
 The undersigned understands and acknowledges that if exercise is occurring other than during a Registered Period, the undersigned is exercising Warrants
pursuant to the Cashless Exercise provisions of Section 4.3 of the Warrant Agreement. If exercise is occurring during a Registered Period, the undersigned elects to make payment of the Exercise Price: 
  ̈  Check this box and complete if payment is to be made in cash, by wire transfer or by certified or
official bank check payable to the order of Sirius. The undersigned elects to receive              shares of Sirius Common Stock and herewith tenders payment for such shares to the
order of Sirius in the amount of $             in accordance with the terms hereof. 
  ̈  Check this box and complete if payment is to be made pursuant to the Cashless Exercise provisions of Section 4.3 of the Warrant Agreement. The undersigned elects to
receive such number of shares of Sirius Common Stock as Sirius then shall be required to issue in accordance with Section 4.3 of the Warrant Agreement upon tender by the undersigned for exchange of Warrants to purchase
             shares of Sirius Common Stock. 
 The undersigned requests
that a certificate for such shares be registered in the name of
                                         
                   , whose address is
                                         
                    and that such shares be delivered to
                                         
                    whose address is
                                         
                   . If said number of shares is less than all of the shares of Sirius Common Stock purchasable hereunder, the undersigned requests
that a new Warrant Certificate representing the remaining balance of such shares be registered in the name of
                            , whose address is
                                        ,
and that such Warrant Certificate be delivered to                             , whose address is
                                        .
If payment of the Exercise Price is to be made through Cashless Exercise, in accordance with Section 9 of the Warrant Agreement the undersigned requests that any cash in lieu of fractional interests be paid to
                     whose address is
                                         
                   . 
 Date:
            ,          
  

	
	  

	(Signature)
	
	  

	 (Signature Guaranteed)

  

 A-6 

 SCHEDULE A 
 SCHEDULE OF WARRANTS 
 EVIDENCED BY THIS GLOBAL WARRANT 
 The initial number of Warrants evidenced by this Global Warrant shall be             . The following
decreases/increases in the number of Warrants evidenced by this Warrant have been made: 
  

									
	 Date of
 Decrease/Increase
	  	 Decrease in
 Number of
 Warrants
 Evidenced by this
 Global Warrant
	  	 Increase in Number
 of Warrants
 Evidenced by this
 Global Warrant
	  	 Total Number of
 Warrants Evidenced
 by this Global
 Warrant Following
 such Decrease/Increase
	  	 Notation Made by
 or on Behalf of
 Warrant Agent

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

	  
	  	  
	  	  
	  	  
	  	  

  

 A-7Exhibit 4.69

 Exhibit 4.69 
 SIRIUS SATELLITE RADIO INC. 
 July 28, 2008 
 Space Systems/Loral, Inc. 
 3825 Fabian Way 
 Palo Alto, California 94303 
 Attention: Contract Manager 
 Loral Space & Communications Ltd. 
 c/o Loral SpaceCom Corporation 
 600 Third Avenue 
 New York, NY 10016 
 Attention: Richard Mastoloni 
 Dear Sir or Madam:
 Reference is made to the XM Satellite Radio Holdings Inc. (“XM”) Common Stock Purchase Warrant, represented by a certificate dated as of
June 3, 2005 (the “Warrant”) issued to Space Systems/Loral Inc. (“SS/L”) and assumed by Sirius Satellite Radio Inc., a Delaware corporation (“Sirius”) pursuant to the Agreement and Plan of
Merger, dated as of February 19, 2007 (the “Merger Agreement”; capitalized terms used but not defined herein shall have the meaning set forth in the Merger Agreement) among Sirius, Vernon Merger Corporation, a Delaware
corporation and direct wholly-owned subsidiary of Sirius (“Merger Co.”) and XM, pursuant to which Merger Co. merged with and into XM, with XM as the surviving corporation (the “Merger”), on July 28, 2008.

 Pursuant to Section 7.1(c) of the Warrant, notice is hereby given with respect to the following: 
 1. Pursuant to Section 7.4 of the Warrant, XM provided notice to SS/L on November 28, 2007, via facsimile and first-class certified mail, of the
pending Merger. 
 2. Pursuant to the Merger Agreement, Merger Co. merged with and into XM, with XM as the surviving corporation on
July 28, 2008. 
 3. Pursuant to Section 2.1(b) of the Merger Agreement, upon consummation of the Merger, issued and outstanding
shares of XM Class A common stock, par value $0.01 per share (“XM Common Stock”), were canceled and extinguished and automatically converted into the right to receive 4.60 fully paid and nonassessable shares of Sirius common
stock, par value $0.001 per share (“Sirius Common Stock”). 
  

 1 

 4. Pursuant to Section 2.6 of the Merger Agreement, from and after the effective time of the Merger
(the “Effective Time”), each warrant to purchase shares of the XM Common Stock (each, an “XM Warrant”) which was outstanding immediately prior to the Effective Time, was converted into and become a warrant to
purchase shares of Sirius Common Stock (each, a “Converted Warrant”) on terms substantially identical to those in effect immediately prior to the Effective Time under the terms of the warrant or other related agreement or award
pursuant to which such XM Warrant was granted; provided, however, that, subject to the terms of the XM Warrants, from and after the Effective Time, (i) each such Converted Warrant may be exercised solely to purchase shares of
Sirius Common Stock, (ii) the number of shares of Sirius Common Stock issuable upon exercise of such Converted Warrant shall be equal to the number of shares of the XM Common Stock that were issuable upon exercise under the corresponding XM
Warrant immediately prior to the Effective Time multiplied by 4.60 and rounded down to the nearest whole share and (iii) the per share exercise price under such Converted Warrant shall be determined by dividing the per share exercise price of
the corresponding XM Warrant immediately prior to the Effective Time by the 4.60 and rounded up to the nearest whole cent. 
 5. In
accordance with the foregoing, the Warrant has been adjusted from the right to acquire 400,000 shares of XM Common Stock at an exercise price of $32.42 per share to the right to acquire 1,840,000 shares of Sirius Common Stock at an exercise price of
$7.05 per share payable to the Warrant Agent for the account of Sirius. 
 6. Sirius hereby assumes the obligation to deliver to SS/L the
shares of stock, securities or assets to which SS/L may be entitled under the Warrant, and all other obligations of XM under the Warrant. 

 Sincerely, 
  

			
	SIRIUS SATELLITE RADIO INC.
		
	By:	 	 /s/ Patrick L. Donnelly

	Name:	 	Patrick L. Donnelly
	Title:	 	Executive Vice President, General Counsel & Secretary

 [SS/L Warrant – Certificate of Adjustment]

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