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See every MPC insider filing — free account, no card.
Free accountMarathon Petroleum Corp (MPC) has 5 SEC Form 4 insider filings on record in the last 90 days. No insider purchases were filed — 4 sales totalling $3.7M. Most recent filing: Sept. 1, 2026.
Open-market value, last 90 days
Form 4 filings by type, last 90 days
| Date | Insider | Trade | Value | Price since buy |
|---|---|---|---|---|
| Sep 1, 2026 SEC filing | Lyon Shawn M SVP Log & Storage, MPLX GP LLC | Sold | $532,367 | — |
| Aug 31, 2026 SEC filing | Brzezinski Erin M VP and Controller | Sold | $206,790 | — |
| Aug 19, 2026 SEC filing | Benson Molly R Chief Legal Ofc & Corp Sec | Cashless exercise | $5,345,205 | — |
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Form 4 is the filing company officers, directors and 10% shareholders must submit to the SEC within two business days of trading their own company's stock. Open-market purchases generally carry more signal than sales, which are often scheduled in advance. More on how this works.