X0508 4 2025-05-23 0000080661 PROGRESSIVE CORP/OH/ PGR 0001665574 Broz Steven 300 NORTH COMMONS BLVD. MAYFIELD VILLAGE OH 44143 1 Chief Information Officer 1 Common 2025-05-23 4 S 0 1267 277.81 D 28887.695 D This transaction reported on this Form 4 was made pursuant to a 10b5-1 trading plan adopted by the reporting person as of January 30, 2025. /s/ Sarah R. D'Amore, By Power of Attorney 2025-05-28