1、UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington,D.C.20549FORM 10-K(Mark One)Annual Report Pursuant to Section 13 or 15(d)of the Securities Exchange Act of 1934For the fiscal year ended December 31,2023orTransition Report Pursuant to Section 13 or 15(d)of the Securities Exchange Act of 1934
2、For the transition period from _to_Commission file number 001-09518THE PROGRESSIVE CORPORATION(Exact name of registrant as specified in its charter)Ohio 34-0963169(State or other jurisdiction ofincorporation or organization)(I.R.S.EmployerIdentification No.)6300 Wilson Mills Road,Mayfield Village,Oh
3、io 44143(Address of principal executive offices)(Zip Code)(440)461-5000(Registrants telephone number,including area code)Securities registered pursuant to Section 12(b)of the Act:Title of each classTrading Symbol(s)Name of each exchange on which registeredCommon Shares,$1.00 Par ValuePGRNew York Sto
4、ck ExchangeSecurities registered pursuant to Section 12(g)of the Act:None(Title of class)Indicate by check mark if the registrant is a well-known seasoned issuer,as defined in Rule 405 of the SecuritiesAct.Yes NoIndicate by check mark if the registrant is not required to file reports pursuant to Sec
5、tion 13 or Section 15(d)of theAct.Yes NoIndicate by check mark whether the registrant(1)has filed all reports required to be filed by Section 13 or 15(d)of the SecuritiesExchange Act of 1934 during the preceding 12 months(or for such shorter period that the registrant was required to file suchreport
6、s),and(2)has been subject to such filing requirements for the past 90 days.Yes NoIndicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submittedpursuant to Rule 405 of Regulation S-T(232.405 of this chapter)during the preceding 12 month