SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

BLACKBURN MARK A

(Last)

(First)

(Middle)

518 E. BROAD STREET

(Street)

COLUMBUS

43215

(City)

(State)

(Zip)

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)
	Executive Vice President

3. Date of Earliest Transaction (Month/Day/Year)
06/11/2008

4. If Amendment, Date of Original Filed (Month/Day/Year)

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. 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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Shares without par value	06/11/2008		M		6,000	A	$12.0625	40,287.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		402	D	$28.06	39,885.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		199	D	$28.08	39,686.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		1,200	D	$28.11	38,486.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		99	D	$28.12	38,387.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		1,516	D	$28.1201	36,871.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		499	D	$28.16	36,372.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		200	D	$28.18	36,172.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		1	D	$28.19	36,171.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		300	D	$28.21	35,871.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		300	D	$28.26	35,571.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		300	D	$28.31	35,271.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		300	D	$28.36	34,971.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		300	D	$28.41	34,671.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		100	D	$28.45	34,571.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		269	D	$28.46	34,302.394⁽²⁾	D
Common Shares without par value	06/11/2008		S		15	D	$28.631	34,287.394⁽²⁾	D

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 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
Employee Stock Option (Right to Buy) NQ	$12.0625	06/11/2008		M	V		3,000	08/19/2000	08/18/2009	Common shares	3,000	$0⁽¹⁾	0	D
Employee Stock Option (Right to Buy) ISO	$12.0625	06/11/2008		M	V		3,000	08/19/2000	08/18/2009	Common Shares	3,000	$0⁽¹⁾	0	D

Explanation of Responses:

1. Field should be left blank, but due to a software defect, requires imput.

2. Includes the following acquisitions: 1.814 shares acquired in March 2008 through the STFC non-qualified plan; 31.742 shares acquired in March 2008 under the dividend reinvestment feature of the STFC Employee Stock Purchase Plan; 0.281 shares acquired in March 2008 under the dividend reinvestment feature of the STFC Pride in Ownership Plan; 128.915 shares acquired in March 2008 under the STFC Dividend Reinvestment Plan; and 556.783 shares acquired in May 2008 through the STFC Employee Stock Purchase Plan.

Remarks:

	Mark A. Blackburn by James A. Yano, attorney in fact pursuant to POA filed with commission 5/7/07.	06/13/2008
	** 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).
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