X0306 4 2018-05-11 0000874977 State Auto Financial CORP STFC 0001208695 ROBERTS SHARON ELAINE 293 SETTLEMENT BLVD. SUNSET SC 29685 1 0 0 0 Restricted Share Units 2018-05-11 4 A 0 2885 0 A Common Stock 2885 41199.678 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 service 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; 143 restricted share units acquired on 6/30/17; 143 restricted share units acquired on 9/30/17; 132 restricted share units acquired on 12/31/167 and 134 restricted share units acquired on 3/31/18. S. Elaine Roberts by Melissa A. Centers, attorney in fact pursuant to a POA filed with the Commission 5-9-16. 2018-05-11