Company · CIK 0001510295 · SIC 2911 — Petroleum Refining · NYSE
Marathon Petroleum Corp · MPC
Insider activity reported against this company. All insider holders · Files at: ANDX, MPLX. On EDGAR ↗
Reported at this company — common stock
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 28, 2026 SForm 4 → | Sep 1, 4:40 pm EDT | Shawn M LyonSVP Log & Storage, MPLX GP LLC | 1,425 | $373.59 | $532,367 | 11,194 | −11.3% | |
| Aug 27, 2026 SForm 4 → | Aug 31, 4:11 pm EDT | Erin M BrzezinskiVP and Controller | 570 | $362.79 | $206,790 | 1,576 | −26.6% | |
| Aug 17, 2026 SForm 4 → | Aug 19, 4:08 pm EDT | Molly R BensonChief Legal Ofc & Corp Sec | 17,196 | $358.57 | $6,165,970 | 30,334 | −36.2% | 10b5-1 |
| Aug 17, 2026 MForm 4 → | Aug 19, 4:08 pm EDT | Molly R BensonChief Legal Ofc & Corp Sec | 17,196 | $47.73 | $820,765 | 35,334 | — | 10b5-1 |
| Aug 13, 2026 SForm 4 → | Aug 17, 5:14 pm EDT | Shawn M LyonSVP Log & Storage, MPLX GP LLC | 2,500 | $350.00 | $875,000 | 12,619 | −16.5% | |
| Aug 12, 2026 SForm 4 → | Aug 14, 4:09 pm EDT | Michael A Henschen IIEx VP, Refining | 6,011 | $341.56 | $2,053,099 | 10,889 | −35.6% | |
| Aug 3, 2026 FForm 4 → | Aug 4, 4:39 pm EDT | Maryann T. MannenChairman, President & CEO, Director | 908 | $311.78 | $283,096 | 110,939 | — |
Reported at this company — derivatives (options, RSUs, warrants)
| Trade | Reported (ET) | Insider | Shares | Avg price | Total | Owned after | Δ stake | Flags |
|---|---|---|---|---|---|---|---|---|
| Aug 17, 2026 MForm 4 → | Aug 19, 4:08 pm EDT | Molly R BensonChief Legal Ofc & Corp Sec | 17,196 | — | — | 0 | — | 10b5-1 |
Filed by this entity as an insider elsewhere — common stock
No reported common-stock activity in this period.
Filed by this entity as an insider elsewhere — derivatives (options, RSUs, warrants)
No reported derivative activity in this period.