Statement of Changes of Beneficial Ownership


FORM 4
[ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).         
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES
                                                                                  
OMB APPROVAL
OMB Number: 3235-0287
Estimated average burden
hours per response...
0.5
                      
Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

Liberty Media Corp
2. Issuer Name and Ticker or Trading Symbol

SIRIUS XM RADIO INC. [ SIRI ]
5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

_____ Director                      __ X __ 10% Owner
_____ Officer (give title below)      _____ Other (specify below)
(Last)          (First)          (Middle)

12300 LIBERTY BOULEVARD
3. Date of Earliest Transaction (MM/DD/YYYY)

10/10/2012
(Street)

ENGLEWOOD, CO 80112
(City)        (State)        (Zip)
4. If Amendment, Date Original Filed (MM/DD/YYYY)

 
6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Trans. Date 2A. Deemed Execution Date, if any 3. Trans. Code
(Instr. 8)
4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)
6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V Amount (A) or (D) Price
Common Stock   10/10/2012     J/K (1)    41087753   A   (1) 1904291236   I   Through Wholly Owned Subsidiary  

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security
(Instr. 3)
2. Conversion or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed Execution Date, if any 4. Trans. Code
(Instr. 8)
5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)
6. Date Exercisable and Expiration Date 7. Title and Amount of Securities Underlying Derivative Security
(Instr. 3 and 4)
8. Price of Derivative Security
(Instr. 5)
9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Forward purchase contract (obligation to buy)     (1) 10/10/2012     J/K   (1)       41087753    10/10/2012   10/10/2012   Common Stock   41087753   $0   0   I   Through Wholly Owned Subsidiary  

Explanation of Responses:
( 1)  As previously disclosed, on June 30, 2012 a wholly owned subsidiary of the Reporting Person entered into a forward purchase contract (the "Forward Contract") with an unaffiliated counterparty covering up to a maximum of 220,000,000 notional shares of the Issuer's Common Stock. On August 10, 2012, the unaffiliated counterparty completed its initial hedge, and the number of notional shares of Common Stock covered by the Forward Contract was fixed at 41,087,753 shares. The Forward Contract expired on October 10, 2012 and will be physically settled on October 15, 2012. The base price under the Forward Contract is approximately $2.047 per share.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
Liberty Media Corp
12300 LIBERTY BOULEVARD
ENGLEWOOD, CO 80112

X


Signatures
LIBERTY MEDIA CORPORATION By: /s/ Craig Troyer, Vice President 10/11/2012
** Signature of Reporting Person Date


Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.