X0306 4 2021-06-17 0000080661 PROGRESSIVE CORP/OH/ PGR 0001198113 Griffith Susan Patricia 6300 WILSON MILLS RD. MAYFIELD VILLAGE OH 44143 1 1 President and CEO Common 2021-06-17 5 G 0 E 5000 0 D 360215.175 D Common 2021-09-17 5 G 0 E 5000 0 D 476907.178 D Common 2021-12-16 4 S 0 45000 103.2367 D 386907.178 D Common 2021-12-16 5 G 0 E 5000 0 D 381907.178 D Common 15051.071 I 401(k) Plan Common 18771.417 I Husband's 401(k) Plan Common 91746.096 I Husband's Trust The transactions reported on this Form 4 were made pursuant to a 10b5-1 trading plan adopted by the reporting person as of April 23, 2021. The price reported in Column 4 is the weighted average price. These shares were sold in multiple transactions at prices ranging from $102.785 and $103.61, inclusive. The reporting person undertakes to provide to The Progressive Corporation, any security holder of The Progressive Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote. Held in a trust for the benefit of reporting person's spouse. /s/ Laurie F. Humphrey, By Power of Attorney 2021-12-20