Form4insider filings, from the source

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 ↗

1M3M6M1Y2YAll datashares as filed — not split-adjusted
Open-market activity at this companybuys $0 · 0sales $532k · 1net −$532k
$10k$10k$100k$100k$1M$1MbuyssalesAug 28Sep 2Sep 7Sep 12Sep 18Sep 23Sep 28

Reported at this company — common stock

TradeReported (ET)InsiderSharesAvg priceTotalOwned afterΔ stakeFlags
Aug 28, 2026 SForm 4 →Sep 1, 4:40 pm EDTShawn M LyonSVP Log & Storage, MPLX GP LLC1,425$373.59$532,36711,194−11.3%

Reported at this company — derivatives (options, RSUs, warrants)

No reported derivative activity in this period.

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.