| EXHIBIT INDEX | | | | | | | | | | | | | | | | | | | | |
| Exhibit No. Under Reg. S-K, Item 601 | | | | | | Form 10-Q Exhibit Number | | | | | | Description of Exhibit | | | | | | If Incorporated by Reference, Documents with Which Exhibit was Previously Filed with SEC | | |
| 4 | | | | | | 4.1 | | | | | | Amendment to Discretionary Line Documents - Discretionary Line of Credit from PNC Bank, National Association, to The Progressive Corporation (2023 Amendment) | | | | | | Filed herewith | | |
| 4 | | | | | | 4.2 | | | | | | Form of Amended and Restated Discretionary Line of Credit Note from The Progressive Corporation to PNC Bank, National Association | | | | | | Filed herewith | | |
| 10 | | | | | | 10.1 | | | | | | Form of Restricted Stock Unit Award Agreement for Time-Based Awards under The Progressive Corporation 2015 Equity Incentive Plan (for 2023) | | | | | | Filed herewith | | |
| 10 | | | | | | 10.2 | | | | | | Form of Restricted Stock Unit Award Agreement for Performance-Based Awards (Performance Versus Market) Under The Progressive Corporation 2015 Equity Incentive Plan (for 2023) | | | | | | Filed herewith | | |
| 10 | | | | | | 10.3 | | | | | | Form of Restricted Stock Unit Award Agreement for Performance-Based Awards (Investment Results) under The Progressive Corporation 2015 Equity Incentive Plan (for 2023) | | | | | | Filed herewith | | |
| 10 | | | | | | 10.4 | | | | | | Form of Restricted Stock Unit Award Agreement for Special Time/Performance-Based Award under The Progressive Corporation 2015 Equity Incentive Plan (for 2023) | | | | | | Filed herewith | | |
| 31 | | | | | | 31.1 | | | | | | Rule 13a-14(a)/15d-14(a) Certification of the Principal Executive Officer, Susan Patricia Griffith | | | | | | Filed herewith | | |
| 31 | | | | | | 31.2 | | | | | | Rule 13a-14(a)/15d-14(a) Certification of the Principal Financial Officer, John P. Sauerland | | | | | | Filed herewith | | |
| 32 | | | | | | 32.1 | | | | | | Section 1350 Certification of the Principal Executive Officer, Susan Patricia Griffith | | | | | | Furnished herewith | | |
| 32 | | | | | | 32.2 | | | | | | Section 1350 Certification of the Principal Financial Officer, John P. Sauerland | | | | | | Furnished herewith | | |
| 99 | | | | | | 99 | | | | | | Letter to Shareholders from Susan Patricia Griffith, President and Chief Executive Officer (Regulation FD Disclosure) | | | | | | Furnished herewith | | |
| 101 | | | | | | 101.INS | | | | | | XBRL Instance Document - the instance document does not appear in the Interactive Data File because its XBRL tags are embedded within the Inline XBRL document | | | | | | Filed herewith | | |
| 101 | | | | | | 101.SCH | | | | | | Inline XBRL Taxonomy Extension Schema Document | | | | | | Filed herewith | | |
| 101 | | | | | | 101.CAL | | | | | | Inline XBRL Taxonomy Extension Calculation Linkbase Document | | | | | | Filed herewith | | |
| 101 | | | | | | 101.DEF | | | | | | Inline XBRL Taxonomy Extension Definition Linkbase Document | | | | | | Filed herewith | | |
| 101 | | | | | | 101.LAB | | | | | | Inline XBRL Taxonomy Extension Label Linkbase Document | | | | | | Filed herewith | | |
| 101 | | | | | | 101.PRE | | | | | | Inline XBRL Taxonomy Extension Presentation Linkbase Document | | | | | | Filed herewith | | |
| 104 | | | | | | 104 | | | | | | Cover Page Interactive Data File (the cover page tags are embedded within the Inline XBRL document) | | | | | | Filed herewith | | |