Marathon Petroleum Corp SEC filings MPC
Marathon Petroleum Corp has 1,010 filings in SEC EDGAR's recent list, going back to Jan 4, 2018. Its latest annual report, Form ARS, was filed on Mar 16, 2026 for the period ended Dec 31, 2025. The latest quarterly report (Form 10-Q) was filed on Nov 3, 2026, covering the quarter ended Sep 30, 2026. The most recent current report (Form 8-K) was filed on Nov 3, 2026 (results of operations). The company's fiscal year ends on December 31.
| Form | Description | Filed | Period |
|---|---|---|---|
| DEFA14A | Additional proxy material | Mar 16, 2026 | — |
| DEF 14A | Proxy statement | Mar 16, 2026 | Apr 29, 2026 |
| PRE 14A | Preliminary proxy statement | Mar 6, 2026 | Apr 29, 2026 |
| DEFA14A | Additional proxy material | Mar 17, 2025 | — |
| DEF 14A | Proxy statement | Mar 17, 2025 | Apr 30, 2025 |
| PRE 14A | Preliminary proxy statement | Mar 7, 2025 | Apr 30, 2025 |
| DEFA14A | Additional proxy material | Mar 14, 2024 | — |
| DEF 14A | Proxy statement | Mar 14, 2024 | Apr 24, 2024 |
| PRE 14A | Preliminary proxy statement | Mar 4, 2024 | Apr 24, 2024 |
| DEFA14A | Additional proxy material | Apr 14, 2023 | — |
| DEFA14A | Additional proxy material | Apr 4, 2023 | — |
| DEFA14A | Additional proxy material | Mar 24, 2023 | — |
| DEFA14A | Additional proxy material | Mar 13, 2023 | — |
| DEF 14A | Proxy statement | Mar 13, 2023 | — |
| PRE 14A | Preliminary proxy statement | Mar 1, 2023 | — |
| DEFA14A | Additional proxy material | Mar 14, 2022 | — |
| DEF 14A | Proxy statement | Mar 14, 2022 | Apr 27, 2022 |
| PRE 14A | Preliminary proxy statement | Mar 3, 2022 | Apr 28, 2022 |
| DEFA14A | Additional proxy material | Apr 16, 2021 | — |
| DEFA14A | Additional proxy material | Mar 19, 2021 | — |
| DEFA14A | Additional proxy material | Mar 15, 2021 | — |
| DEF 14A | Proxy statement | Mar 15, 2021 | Apr 28, 2021 |
| PRE 14A | Preliminary proxy statement | Mar 3, 2021 | Apr 28, 2021 |
| DEFA14A | Additional proxy material | Apr 6, 2020 | — |
| DEFA14A | Additional proxy material | Apr 2, 2020 | — |
| DEFA14A | Additional proxy material | Mar 16, 2020 | — |
| DEFA14A | Additional proxy material | Mar 16, 2020 | — |
| DEF 14A | Proxy statement | Mar 16, 2020 | Apr 29, 2020 |
| PRE 14A | Preliminary proxy statement | Mar 4, 2020 | Apr 29, 2020 |
| DEFA14A | Additional proxy material | Nov 1, 2019 | — |
| DEFA14A | Additional proxy material | Oct 31, 2019 | — |
| DEFA14A | Additional proxy material | Oct 31, 2019 | — |
| DEFA14A | Additional proxy material | Oct 3, 2019 | — |
| DEFA14A | Additional proxy material | Sep 27, 2019 | — |
| DEFA14A | Additional proxy material | Sep 25, 2019 | — |
| DEFA14A | Additional proxy material | Mar 14, 2019 | — |
| DEF 14A | Proxy statement | Mar 14, 2019 | Apr 24, 2019 |
| DEFA14A | Additional proxy material | Apr 4, 2018 | — |
| DEFA14A | Additional proxy material | Mar 15, 2018 | — |
| DEF 14A | Proxy statement | Mar 15, 2018 | Apr 25, 2018 |
| PRE 14A | Preliminary proxy statement | Mar 2, 2018 | Apr 25, 2018 |
Showing 41 filings. Main filings leave out insider and ownership forms such as Form 4; choose a type above to see them. Each form opens on SEC.gov. Older filings are on SEC EDGAR.
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Company profile
- Industry
- Petroleum Refining (SIC 2911)
- Listed as
- MPC (NYSE)
- Fiscal year ends
- December 31
- Incorporated in
- DE
- Headquarters
- Findlay, OH
- SEC filer status
- Large accelerated filer
- SEC CIK
- 1510295
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Source: SEC EDGAR filings. This is company-reported data, not investment advice.