X0306 4 2019-05-10 0000874977 State Auto Financial CORP STFC 0001398593 Baker Robert Ellison 1310 GLEN CEDARS DRIVE MABLETON GA 30126 1 0 0 0 Restricted Share Units 2019-05-10 4 A 0 2691 0 A Common Stock 2691 40610.695 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 Oustide 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; 118 restricted share units acquired on 6/30/18; 123 restricted share units acquired on 9/30/18; 109 restricted share units acquired on 12/31/18 and 114 restricted share units acquired on 3/31/19. Robert E. Baker by Melissa A. Centers, attorney in fact pursuant to a POA filed with the Commission 5-9-16. 2019-05-10