X0202 4 2008-03-07 0000874977 State Auto Financial CORP STFC 0001110810 STATE AUTOMOBILE MUTUAL INSURANCE CO 518 E. BROAD STREET COLUMBUS OH 43215 0 0 1 0 Common Shares without par value 2008-03-07 4 S 0 28041 26.721 D 21809861 D Common Shares without par value 2008-03-10 4 S 0 52603 27.4321 D 21757258 D 1. On August 17, 2007, State Auto Financial Corporation announced a Stock Repurchase Program pursuant to which State Auto Financial Corporation is authorized the repurchase, from time to time, of up to 4.0 million of its common shares over a period extending until December 31, 2009. Under this Stock Repurchase Program, State Auto Financial Corporation will repurchase shares from State Automobile Mutual Insurance Company in amounts that are proportional to the respective current ownership percentages of State Automobile Mutual Insurance Company, which is approximately 64%, and other shareholders. All of the common shares being reported as sold under this Form 4 were sold by State Automobile Mutual Insurance Company to State Auto Financial Corporation pursuant to this Stock Repurchase Program. State Automobile Mutual Insurance Company by James A. Yano, Secretary 2008-03-10