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
                                                                                  
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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(f) of the Investment Company Act of 1940
                      

1. Name and Address of Reporting Person *

POWELL CYNTHIA A 		2. Issuer Name and Ticker or Trading Symbol

State Auto Financial CORP [ STFC ] 		5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

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

518 E. BROAD STREET 		3. Date of Earliest Transaction (MM/DD/YYYY)

12/4/2009
(Street)

COLUMBUS, OH 43215
(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 Shares without par value   12/4/2009     S    600   D $17.41   8499.889   (2) D  
 
Common Shares without par value   12/4/2009     S    300   D $17.42   8199.889   (2) D  
 
Common Shares without par value   12/4/2009     S    271   D $17.421   7928.889   (2) D  
 
Common Shares without par value   12/4/2009     S    216   D $17.58   7712.889   (2) D  
 
Common Shares without par value   12/4/2009     S    300   D $17.59   7412.889   (2) D  
 
Common Shares without par value   12/4/2009     S    433   D $17.63   6979.889   (2) D  
 
Common Shares without par value   12/4/2009     S    29   D $17.631   6950.889   (2) D  
 
Common Shares without par value   12/4/2009     M    3600   A $10.375   10550.889   (2) D  
 
Common Shares without par value   12/4/2009     S    1042   D $17.50   9508.889   (2) D  
 
Common Shares without par value   12/4/2009     S    1000   D $17.51   8508.889   (2) D  
 
Common Shares without par value   12/4/2009     S    400   D $17.60   8108.889   (2) D  
 
Common Shares without par value   12/4/2009     S    100   D $17.61   8008.889   (2) D  
 
Common Shares without par value   12/4/2009     S    100   D $17.62   7908.889   (2) D  
 
Common Shares without par value   12/4/2009     S    525   D $17.64   7383.889   (2) D  
 
Common Shares without par value   12/4/2009     S    100   D $17.65   7283.889   (2) D  
 
Common Shares without par value   12/4/2009     S    300   D $17.615   6983.889   (2) D  
 
Common Shares without par value   12/7/2009     M    3600   A $10.375   10583.889   (2) D  
 

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
Employee Stock Option (Right to Buy) NQ   $10.375   12/4/2009     M         3600    5/25/2001   5/24/2010   Common Shares   3600   $0   (1) 0   D  
 
Employee Stock Option (Right to Buy) ISO   $10.375   12/7/2009     M         3600    5/25/2001   5/24/2010   Common Shares   3600   $0   (1) 0   D  
 

Explanation of Responses:
( 1)  Field should be left blank, but due to a software defect, requires input.
( 2)  Includes the following acquisitions: 66.139 shares acquired in March 2009, 70.019 shares acquired in June 2009 and 65.702 shares acquired in September 2009 under the State Auto Financial CP Reinvestment; 463.554 shares acquired in June 2009 through the State Auto Financial Corporation Employee Stock Purchase Plan; and 5.309 shares acquired in March 2009, 5.621 shares acquired in June 2009 and 9.118 shares acquired in September 2009 as dividend reinvestment.

Reporting Owners
Reporting Owner Name / Address
Relationships
Director 10% Owner Officer Other
POWELL CYNTHIA A
518 E. BROAD STREET
COLUMBUS, OH 43215

Vice President

Signatures
Cynthia A. Powell 12/8/2009
** 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.
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