Marathon Petroleum Corp (MPC): Insider Trades and Fund Holdings
In the past 12 months, Marathon Petroleum Corp insiders reported 0 open-market purchases worth $0 and 6 sales worth $9.83M; 1 of the sales were reported as made under a 10b5-1 trading plan.
Timeline: news and trades
Company filings (8-K), insider trades, notices of planned sales (Form 144) and fund moves in the past year, newest first.
- Aug 31, 2026Insider saleSVP Shawn M. Lyon sold $375,750
- Aug 28, 2026Insider saleSVP Shawn M. Lyon sold $156,617
- Aug 27, 2026Insider saleVP Erin M. Brzezinski sold $206,790
- Aug 17, 2026Insider saleGeneral Counsel Molly R. Benson sold $6.2 million under a 10b5-1 plan
- Aug 13, 2026Insider saleSVP Shawn M. Lyon sold $875,000
- Aug 12, 2026Insider saleVP Michael A. Henschen II sold $2.1 million
- Jun 30, 2026FundBridgewater Associates added 352% in Q2 2026 (13F filed Aug 14, 2026)
Recent insider trades
Open-market purchases (code P) and sales (code S) from Form 4. Grants, option exercises and gifts are not shown. Latest filing: Sep 1, 2026.
| Filed | Insider | Type | Value |
|---|---|---|---|
| Sep 1 | Shawn M. LyonSVP | ▼ SELL | $376K |
| Sep 1 | Shawn M. LyonSVP | ▼ SELL | $157K |
| Aug 31 | Erin M. BrzezinskiVP | ▼ SELL | $207K |
| Aug 19 | Molly R. BensonGeneral Counsel | ▼ SELL10b5-1 | $6.17M |
| Aug 17 | Shawn M. LyonSVP | ▼ SELL | $875K |
| Aug 14 | Michael A. Henschen IIVP | ▼ SELL | $2.05M |
Insiders who traded in the past year
| Insider | Role | Buys | Bought | Sells | Sold |
|---|---|---|---|---|---|
| Shawn M. Lyon | SVP | 0 | $0 | 3 | $1.41M |
| Erin M. Brzezinski | VP | 0 | $0 | 1 | $207K |
| Molly R. Benson | General Counsel | 0 | $0 | 1 | $6.17M |
| Michael A. Henschen II | VP | 0 | $0 | 1 | $2.05M |
Buybacks and executive pay
Marathon Petroleum Corp spent $3.49 billion buying back its own shares in 2025.
From the company's XBRL data filed with the SEC. "Actually paid" is the SEC's pay-versus-performance measure, which counts changes in the value of stock awards. "Value of $100 invested" is the company's cumulative shareholder return as reported, usually measured from five years earlier. See all buybacks and CEO pay across companies.
Tracked funds that report MPC
From each fund's latest 13F. Holdings are as of quarter end and are filed up to 45 days later.
| Fund | Shares | Value | Change |
|---|---|---|---|
| Bridgewater Associates | 349,224 | $89.3M | ▲ +351.9% |
Reading these numbers
Insiders sell for many reasons: taxes, diversification, a house. Purchases with their own money are rarer and are usually read as more informative. A Form 4 is due within two business days of the trade. How to read a Form 4 →