What the executives and directors of Marathon Petroleum actually did with their own shares, decoded from three years of SEC Form 4 filings.
The tape: three years of insider trades
Every marker sits at the exact price reported on the Form 4. The line is the monthly median of all prices insiders reported, so the chart needs no market feed; the gray strip is routine flow (vestings, tax withholding, gifts) that headlines love to miscount as selling.
Where the shares went, last 12 months
Every Form 4 movement decomposed: what flowed in (grants, vested equity, purchases) and what flowed out (tax withholding, plan sales, discretionary sales, gifts). Counted in shares, because grants carry no price.
Skin in the game
Directly held shares as reported after each trade, indexed to 100 five years back. Direct holdings only: trust and family-entity positions are per-entity in the filings and do not sum honestly, so this chart refuses to guess. The steps are the trades.
Who holds what
| Insider | Role | Shares held | Buys 12 m | Sales 12 m |
|---|---|---|---|---|
| Hennigan Michael J Executive Chairman | Officer | 220.9K | — | — |
| Mannen Maryann T. Chairman, President & CEO | CEO | 110.9K | — | — |
| Bayh Evan | Director | 75.8K | — | — |
| SURMA JOHN P | Director | 60.9K | — | — |
| Gagle Suzanne Gen Counsel and SVP Gov Aff | Officer | 45.8K | — | — |
| Quaid John J Exec VP & Chief Fin Ofc | Officer | 36.4K | — | — |
| BUNCH CHARLES E | Director | 34.7K | — | — |
| Floerke Gregory Scott Ex VP & COO, MPLX GP LLC | COO | 31.6K | — | — |
| Benson Molly R Chief Legal Ofc & Corp Sec | Officer | 31K | — | $1.8M |
| TOMASKY SUSAN | Director | 28.2K | — | — |
| Al Khayyal Abdulaziz Fahd | Director | 26K | — | — |
| STICE J MICHAEL | Director | 24.7K | — | — |
| GALANTE EDWARD G | Director | 24K | — | — |
| Rucker Kim K.W. | Director | 20K | — | — |
Open-market trade log
| Date | Insider | Type | Shares | Price | Value |
|---|---|---|---|---|---|
| 2026-06-04 | Henschen Michael A II (Officer) | Discretionary sale | 1,372 | $268.75 | $369K |
| 2026-06-04 | Henschen Michael A II (Officer) | Discretionary sale | 4,964 | $268.85 | $1.3M |
| 2026-05-13 | Hessling Ricky D. (Officer) | Discretionary sale | 1,000 | $250.00 | $250K |
| 2026-03-13 | Hessling Ricky D. (Officer) | Discretionary sale | 1,626 | $228.18 | $371K |
| 2026-03-12 | Hessling Ricky D. (Officer) | Discretionary sale | 478 | $228.00 | $109K |
| 2026-03-12 | Hessling Ricky D. (Officer) | Discretionary sale | 559 | $230.00 | $129K |
| 2026-03-11 | Hessling Ricky D. (Officer) | Discretionary sale | 325 | $226.00 | $73K |
| 2026-03-11 | Hessling Ricky D. (Officer) | Discretionary sale | 1,485 | $224.51 | $333K |
| 2026-02-12 | Henschen Michael A II (Officer) | Discretionary sale | 5,289 | $202.32 | $1.1M |
| 2025-08-15 | Benson Molly R (Officer) | Planned sale (10b5-1) | 10.9K | $163.00 | $1.8M |
| 2025-07-03 | Rucker Kim K.W. (Director) | Planned sale (10b5-1) | 7,392 | $175.00 | $1.3M |
| 2025-03-11 | Hessling Ricky D. (Officer) | Open-market buy | 2,000 | $134.72 | $269K |
| 2025-03-05 | Bayh Evan (Director) | Open-market buy | 1,000 | $133.70 | $134K |
| 2024-12-04 | CAMPBELL JEFFREY C (Director) | Open-market buy | 6,000 | $149.61 | $898K |
| 2024-03-01 | Rucker Kim K.W. (Director) | Planned sale (10b5-1) | 1,000 | $170.35 | $170K |
| 2024-02-26 | Aydt Timothy J (Officer) | Discretionary sale | 7,955 | $172.88 | $1.4M |
| 2023-11-13 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 1,436 | $146.81 | $211K |
| 2023-11-01 | Rucker Kim K.W. (Director) | Planned sale (10b5-1) | 6,000 | $152.43 | $915K |
| 2023-08-10 | Floerke Gregory Scott (COO) | Discretionary sale | 8,189 | $145.80 | $1.2M |
| 2023-08-10 | Aydt Timothy J (Officer) | Discretionary sale | 4,913 | $145.26 | $714K |
| 2023-08-10 | Lyon Shawn M (Officer) | Discretionary sale | 8,086 | $147.15 | $1.2M |
| 2023-08-01 | Rucker Kim K.W. (Director) | Planned sale (10b5-1) | 6,000 | $132.25 | $794K |
| 2023-06-05 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 1,022 | $108.85 | $111K |
| 2023-06-05 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 4,695 | $108.93 | $511K |
| 2023-04-04 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 6,908 | $134.28 | $928K |
| 2023-04-04 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 13.5K | $134.28 | $1.8M |
| 2023-04-04 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 15.1K | $134.28 | $2M |
| 2023-04-04 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 24.6K | $134.28 | $3.3M |
| 2023-04-03 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 6,909 | $137.23 | $948K |
| 2023-04-03 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 13.5K | $137.23 | $1.9M |
| 2023-04-03 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 15.1K | $137.23 | $2.1M |
| 2023-04-03 | Gagle Suzanne (Officer) | Planned sale (10b5-1) | 24.6K | $137.23 | $3.4M |
| 2023-03-02 | Rucker Kim K.W. (Director) | Discretionary sale | 6,000 | $130.00 | $780K |
| 2022-11-22 | Aydt Timothy J (Officer) | Discretionary sale | 2,456 | $126.55 | $311K |
| 2022-11-22 | Aydt Timothy J (Officer) | Discretionary sale | 5,021 | $126.53 | $635K |
| 2022-11-18 | Lyon Shawn M (Officer) | Discretionary sale | 12.1K | $121.65 | $1.5M |
| 2022-11-16 | Hennigan Michael J (CEO) | Discretionary sale | 80.1K | $118.73 | $9.5M |
| 2022-11-15 | Hennigan Michael J (CEO) | Discretionary sale | 937 | $121.36 | $114K |
| 2022-11-15 | Hennigan Michael J (CEO) | Discretionary sale | 15K | $120.63 | $1.8M |
| 2022-11-15 | Hennigan Michael J (CEO) | Discretionary sale | 20.6K | $118.93 | $2.5M |
| 2022-11-15 | Hennigan Michael J (CEO) | Discretionary sale | 63.5K | $119.85 | $7.6M |
| 2022-11-14 | Hennigan Michael J (CEO) | Discretionary sale | 12.8K | $122.71 | $1.6M |
| 2022-11-14 | Hennigan Michael J (CEO) | Discretionary sale | 33.9K | $121.08 | $4.1M |
| 2022-11-14 | Hennigan Michael J (CEO) | Discretionary sale | 53.3K | $121.94 | $6.5M |
| 2022-11-14 | Aydt Timothy J (Officer) | Discretionary sale | 5,021 | $122.12 | $613K |
| 2022-11-14 | Aydt Timothy J (Officer) | Discretionary sale | 7,370 | $122.17 | $900K |
| 2022-09-19 | Gagle Suzanne (Officer) | Discretionary sale | 2,370 | $93.02 | $220K |
| 2022-09-19 | Gagle Suzanne (Officer) | Discretionary sale | 3,006 | $93.02 | $280K |
| 2022-09-19 | Gagle Suzanne (Officer) | Discretionary sale | 4,120 | $95.00 | $391K |
| 2022-09-19 | Gagle Suzanne (Officer) | Discretionary sale | 5,678 | $95.00 | $539K |
| 2022-09-19 | Gagle Suzanne (Officer) | Discretionary sale | 20K | $93.02 | $1.9M |
| 2022-08-25 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 2,659 | $105.39 | $280K |
| 2022-08-25 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 4,695 | $105.42 | $495K |
| 2022-08-25 | HAGEDORN CARL KRISTOPHER (Officer) | Discretionary sale | 6,999 | $105.41 | $738K |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 8,291 | $109.27 | $906K |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 9,008 | $109.27 | $984K |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 10.6K | $109.27 | $1.2M |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 10.9K | $109.27 | $1.2M |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 12.4K | $109.27 | $1.4M |
| 2022-06-10 | Kaczynski Thomas (Officer) | Discretionary sale | 15K | $109.27 | $1.6M |
“Since trade” compares with the latest insider-implied price, not a market quote; this site carries no market data by design.
Filing hygiene
How to read this
A Form 4 transaction code decides everything. P is an open-market purchase and S an open-market sale; those two are the only codes where an insider chose to trade. A is a grant, M an option exercise or vesting, F shares withheld to cover tax, G a gift. Most “insiders dumped billions” headlines are code F and M mechanics.
Sales flagged 10b5-1 run on a plan the insider adopted in advance; since 2023 every Form 4 carries that flag. Buys have historically predicted returns, sales mostly have not, and this page states filings, not advice.