Marathon Petroleum
Refiner and fuel marketer with MPLX midstream infrastructure and renewable diesel operations.
$369.35
After-hours close+0.38 (+0.10%)
At close$368.97(+1.49%)
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Breakdown13F · Form 4
Institutions 119.86%Insiders 0.28%
A 13F quarter can total more than the shares outstanding — sub-advisers file the same block twice, and a filer's own share count can be a quarter stale. No split is drawn from it.
Shares outstanding 291.94M · Float 291.03M · 99.7% free float
Institutions13F, as of Jun 30, 2026
2,006 holders · 349.91M shares · 176 new positions · 857 increased · 720 reduced · 127 closed
| Holder | Shares | % outstanding | Chg q/q | Filed |
|---|---|---|---|---|
| BlackRock, Inc. | 26.01M | 8.91% | +1.61M | Aug 7, 2026 |
| Vanguard Capital Management LLC | 19.07M | 6.53% | −95.8K | Aug 13, 2026 |
| State Street Corp | 18.47M | 6.33% | −553.1K | Aug 7, 2026 |
| Vanguard Portfolio Management LLC | 15.63M | 5.35% | −40.8K | Aug 13, 2026 |
| Geode Capital Management, LLC | 8.35M | 2.86% | +529.6K | Aug 12, 2026 |
| Morgan Stanley | 5.89M | 2.02% | −186.2K | Aug 13, 2026 |
| Raymond James Financial Inc | 5.68M | 1.95% | −88.8K | Aug 14, 2026 |
| FMR LLC | 5.42M | 1.86% | +508.6K | Aug 13, 2026 |
Beneficial owners13D/G · 5% or more, as filed
| Holder | % of class | Shares | Form | Filed |
|---|---|---|---|---|
| Vanguard Capital Management | 7.52% | 22.15M | 13G | Apr 30, 2026 ↗ |
| BlackRock, Inc. | 6.80% | 21.06M | 13G | Apr 23, 2025 ↗ |
| Vanguard Portfolio Management | 5.35% | 15.77M | 13G | Apr 29, 2026 ↗ |
InsidersForm 4
| Insider | Role | Shares | % outstanding | Filed |
|---|---|---|---|---|
| Michael J. Hennigan | director, officer: Executive Chairman | 220.9K | 0.08% | Dec 16, 2025 |
| Maryann T. Mannen | director, officer: Chairman, President & CEO | 110.9K | 0.04% | Aug 4, 2026 |
| Evan Bayh | director | 73.0K | 0.03% | May 4, 2026 |
| John P. Surma | director | 60.9K | 0.02% | May 4, 2026 |
| John J. Quaid | officer: Exec VP & Chief Fin Ofc | 35.5K | 0.01% | Mar 4, 2025 |
| Molly R. Benson | officer: Chief Legal Ofc & Corp Sec | 35.3K | 0.01% | Aug 19, 2026 |
| Charles E. Bunch | director | 34.7K | 0.01% | Apr 3, 2025 |
| Gregory Scott Floerke | officer: Ex VP & COO, MPLX GP LLC | 31.3K | 0.01% | Mar 3, 2026 |
| Susan Tomasky | director | 28.2K | 0.01% | Apr 3, 2025 |
| Khayyal Abdulaziz Fahd Al | director | 26.0K | 0.01% | May 4, 2026 |
1 ten-percent owner holds 4 shares by Form 4, outside the officers-and-directors figure above · 32 people have not refiled in the last 18 months (3.64M shares), so they are not in the figure above
Latest trades
| Date | Insider | Type | Shares | Avg price | Owned after |
|---|---|---|---|---|---|
| Aug 17, 2026 | Molly R. Bensonofficer: Chief Legal Ofc & Corp Sec | Sale | 5,000 | $358.57 | 30,334 |
| Aug 13, 2026 | Shawn M. Lyonofficer: SVP Log & Storage, MPLX GP LLC | Sale | 2,500 | $350.00 | 12,619 |
| Aug 12, 2026 | Michael A. II Henschenofficer: Ex VP, Refining | Sale | 6,011 | $341.56 | 10,889 |
| Jun 4, 2026 | Michael A. II Henschenofficer: Ex VP, Refining | Sale · 2 lots | 6,336 | $268.82 | 16,900 |
| May 13, 2026 | Ricky D. Hesslingofficer: Chief Commercial Officer | Sale | 1,000 | $250.00 | 6,525 |
| Mar 13, 2026 | Ricky D. Hesslingofficer: Chief Commercial Officer | Sale | 1,626 | $228.18 | 7,525 |
| Mar 12, 2026 | Ricky D. Hesslingofficer: Chief Commercial Officer | Sale · 2 lots | 1,037 | $229.08 | 9,151 |
| Mar 11, 2026 | Ricky D. Hesslingofficer: Chief Commercial Officer | Sale · 2 lots | 1,810 | $224.78 | 10,188 |
| Feb 12, 2026 | Michael A. II Henschenofficer: Ex VP, Refining | Sale | 5,289 | $202.32 | 16,974 |
CongressHouse and Senate disclosures
| Member | Type | Amount | Owner | Traded | Disclosed |
|---|---|---|---|---|---|
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Jul 24, 2026 | Aug 7, 2026 ↗ | |
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Jul 24, 2026 | Aug 7, 2026 ↗ | |
| Rep. David Taylor · OH02 | Sale | $1,001 – $15,000 | Jul 24, 2026 | Aug 7, 2026 ↗ | |
| Rep. Dan Newhouse · WA04 | Sale | $1,001 – $15,000 | Spouse | Jul 10, 2026 | Jul 20, 2026 ↗ |