X0306 4 2015-05-08 0000874977 State Auto Financial CORP STFC 0001186572 TREVOR ALEXANDER B 1987 MY TERN COURT SANIBEL FL 33957 1 0 0 0 Restricted Share Units 2015-05-08 4 A 0 3273 0 A Common Stock 3273 28538.542 D Each restricted share unit represents a right to receive either one share of STFC common stock or the cash equivalent thereof, as further described in the Outside Directors Restricted Share Unit Plan. The restricted share units become payable, in cash or common shares, at the election of the reporting person, upon the reporting person's termination of services as a director, following a 6 month vesting period. Includes restricted share units previously granted under Outside Directors Restricted Share Unit Plan and restricted share units credited with dividends, equivalent in value to those declared and paid on one share of STFC common stock; 107.088 restricted share units acquired on 06/30/14; 119.799 restricted share units acquired on 9/30/14; 111.580 restricted share units acquired on 12/31/14 and 104.972 restricted share units acquired on 3/31/15. Alexander B. Trevor by James A. Yano, attorney in fact pursuant to a POA filed with the Commission on 5-4-07. 2015-05-11