Ownership Submission
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

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
BERKSHIRE HATHAWAY INC
   2. Issuer Name and Ticker or Trading Symbol
Symetra Financial CORP [SYA] 		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)
3555 FARNAM STREET		 3. Date of Earliest Transaction (Month/Day/Year)
06/20/2013
(Street)

OMAHA, NE 68131		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
___ Form filed by One Reporting Person
_X_ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction 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 06/20/2013   X   9,487,872 A $ 11.494 26,887,872 I See footnote (1) (1)
Common Stock 06/20/2013   J(2)   7,023,029 D $ 15.528 19,864,843 I See footnote (1) (1)
Common Stock 06/20/2013   J(3)   184,036 A $ 0 20,048,879 I See footnote (1) (1)

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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction 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
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(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
Warrant (right to buy) $ 11.494 06/20/2013   X     9,487,872 07/30/2004 07/29/2014 Common Stock 9,487,872 $ 0 0 I See footnote (1) (1)

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
BERKSHIRE HATHAWAY INC
3555 FARNAM STREET
OMAHA, NE 68131		     X    
GENERAL RE CORP
1440 KIEWIT PLAZA
OMAHA, NE 		     X    
GENERAL REINSURANCE CORP
1440 KIEWIT PLAZA
OMAHA, NE 68131		     X    
BUFFETT WARREN E
3555 FARNAM STREET
OMAHA, NE 68131		     X    

Signatures

 Berkshire Hathaway Inc., by Marc D. Hamburg   06/24/2013
**Signature of Reporting Person Date

Explanation of Responses:

* 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).
(1) These securities are owned directly by General Reinsurance Corporation ("GRC"), which is a wholly owned subsidiary of General Re Corporation ("Gen Re"), which is a wholly owned subsidiary of Berkshire Hathaway Inc. ("Berkshire"). As Berkshire and Gen Re are in the chain of ownership of GRC, each of Berkshire and Gen Re may be deemed presently to both beneficially own and have a pecuniary interest in all shares of Symetra Financial Corporation ("SYA") common stock presently owned by GRC. Warren E. Buffett, as the controlling stockholder of Berkshire, may be deemed presently to beneficially own, but only to the extent he has a pecuniary interest in, the shares of SYA common stock presently owned by GRC. Mr. Buffett disclaims beneficial ownership of the reported securities except to the extent of his pecuniary interest therein.
(2) On June 20, 2013, GRC exercised its warrant to purchase 9,487,872 shares of SYA common stock for $11.494 per share and paid the exercise price on a cashless basis, resulting in SYA's withholding of 7,023,029 shares of SYA common stock in respect of the exercise price.
(3) In order to induce GRC to exercise the warrant as described in footnote 2, SYA has agreed to issue to GRC 184,036 additional shares of SYA common stock.

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