X0407 4 2023-03-23 0000080661 PROGRESSIVE CORP/OH/ PGR 0001699883 Mascaro Daniel P 6300 WILSON MILLS RD. MAYFIELD VILLAGE OH 44143 1 Vice Pres, Secretary and CLO 0 Restricted Stock Unit 2023-03-23 4 A 0 4135 0 A Common 4135 21052 D Each Restricted Stock Unit represents a contingent right to receive one Common Share of the Company's stock. These units will vest in three equal annual installments on each of January 20, 2026, January 19, 2027 and January 18, 2028, subject to earlier vesting or forfeiture in accordance with the plan and the award agreement. Expiration Date is the same as Date Exercisable. /s/ Allyson L. Bach, By Power of Attorney 2023-03-24