Marathon Petroleum Corp (MPC) shareholders
MPCNYSEPetroleum RefiningFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Nov 3, 2026Score 12/3020% above fair value
$412.85+10.01 (+2.48%)
Close on Nov 12, 2026Market cap $115.94BP/E 14.2Yield 0.90%
Ownership
Institutional holdings as of Jun 30, 2026, from 13F filings
Held by institutions
78.0%
219M of 281M shares
Institutional holders
1,945
174 new, 94 sold out
Net institutional buying
-2M
In Q2 2026
Insider trades, 12 months
0 buys · 17 sales
Net sold $13.87M
Shares held by institutions
Holders of more than 5%
Latest Schedule 13D (active) or 13G (passive) filed by each holder
| Holder | Shares | % of class | Filing | As of |
|---|---|---|---|---|
| Vanguard Capital Management | 22,147,567 | 7.52% | 13G (passive) | Mar 31, 2026 |
| BlackRock, Inc. | 22,115,488 | 7.90% | 13G (passive) amendment | Sep 30, 2026 |
| Vanguard Portfolio Management | 15,765,266 | 5.35% | 13G (passive) | Mar 31, 2026 |
| State Street Corporation | – | 6.62% | 13G (passive) amendment | Dec 31, 2023 |
Top institutional holders
13F holdings as of Jun 30, 2026
| Holder | Shares | % of MPC | Value | Change | % of portfolio |
|---|---|---|---|---|---|
| BlackRock, Inc. | 26,006,017 | 9.26% | $6.65B | +1,611,175 | 0.10% |
| Vanguard Capital Management LLC | 19,074,289 | 6.79% | $4.88B | −95,805 | 0.10% |
| State Street Corp | 18,471,905 | 6.58% | $4.72B | −553,115 | 0.14% |
| Vanguard Portfolio Management LLC | 15,631,265 | 5.57% | $4.00B | −40,848 | 0.18% |
| Geode Capital Management, LLC | 8,351,157 | 2.97% | $2.13B | +529,633 | 0.11% |
| Morgan Stanley | 5,887,382 | 2.10% | $1.51B | −186,161 | 0.08% |
| Raymond James Financial Inc | 5,684,963 | 2.02% | $1.45B | −88,806 | 0.39% |
| FMR LLC | 5,419,718 | 1.93% | $1.39B | +508,637 | 0.06% |
| Bank of New York Mellon Corp | 4,027,107 | 1.43% | $1.03B | +73,789 | 0.17% |
| Boston Partners | 3,515,417 | 1.25% | $905.82M | −2,133,787 | 0.80% |
| Wellington Management Group Llp | 3,252,153 | 1.16% | $831.48M | −2,385,034 | 0.14% |
| Northern Trust Corp | 3,126,059 | 1.11% | $799.24M | −50,810 | 0.09% |
| Dimensional Fund Advisors LP | 3,056,082 | 1.09% | $781.45M | −31,900 | 0.14% |
| Goldman Sachs Group Inc | 2,884,591 | 1.03% | $737.50M | +129,748 | 0.06% |
| JPMorgan Chase & Co | 2,736,206 | 0.97% | $709.28M | −699,606 | 0.04% |
| Charles Schwab Investment Management Inc | 2,622,511 | 0.93% | $670.50M | −106,878 | 0.09% |
| Norges Bank | 2,465,801 | 0.88% | $630.43M | New | 0.06% |
| Bank Of America Corp /De/ | 2,432,168 | 0.87% | $621.83M | −162,916 | 0.04% |
| Invesco Ltd. | 2,341,034 | 0.83% | $598.53M | −487,611 | 0.05% |
| Amundi | 2,237,930 | 0.80% | $572.17M | +332,551 | 0.14% |
Institutional buying and selling by quarter
Positions opened, added to, reduced and closed by 13F filers
| Quarter | Holders | Shares held | % of shares | New / added | Reduced / closed | Shares bought | Shares sold |
|---|---|---|---|---|---|---|---|
| Q2 2026 | 1,945 | 219M | 78.0% | 174 / 686 | 715 / 94 | 14M | 16M |
| Q1 2026 | 1,894 | 221M | 78.7% | 351 / 568 | 679 / 111 | 54M | 19M |
| Q4 2025 | 1,678 | 224M | 79.9% | 204 / 571 | 578 / 154 | 18M | 16M |
| Q3 2025 | 1,662 | 223M | 79.4% | 196 / 500 | 622 / 79 | 11M | 21M |
| Q2 2025 | 1,572 | 233M | 83.1% | 153 / 531 | 589 / 124 | 18M | 22M |
| Q1 2025 | 1,561 | 237M | 84.4% | 137 / 487 | 642 / 114 | 21M | 19M |
| Q4 2024 | 1,559 | 237M | 84.2% | 183 / 466 | 646 / 179 | 27M | 24M |
| Q3 2024 | 1,579 | 240M | 85.3% | 112 / 531 | 627 / 167 | 41M | 25M |
| Q2 2024 | 1,648 | 252M | 89.7% | 126 / 592 | 604 / 145 | 9M | 36M |
| Q1 2024 | 1,689 | 279M | 99.4% | 256 / 488 | 651 / 100 | 18M | 25M |
| Q4 2023 | 1,551 | 286M | 100.0% | 200 / 470 | 589 / 104 | 21M | 24M |
| Q3 2023 | 1,474 | 290M | 100.0% | 211 / 452 | 556 / 71 | 12M | 26M |
Top mutual fund and ETF holders
Latest monthly portfolio reports (Form N-PORT)
883 funds held MPC in Q2 2026, 61% of their shares through ETFs. Each fund counts once per quarter, from its quarter-end report.
| Fund | Shares | % of MPC | Value | % of fund | As of |
|---|---|---|---|---|---|
| Vanguard Total Stock Market Index Fund | 9,267,742 | 3.30% | $2.37B | 0.10% | Jun 30, 2026 |
| Vanguard 500 Index Fund | 7,564,038 | 2.69% | $1.93B | 0.12% | Jun 30, 2026 |
| Vanguard Mid-Cap Index Fund | 6,325,642 | 2.25% | $1.62B | 0.72% | Jun 30, 2026 |
| State Street(R) Energy Select Sector SPDR(R) ETF | 6,258,278 | 2.23% | $1.60B | 4.48% | Jun 30, 2026 |
| iShares Core S&P 500 ETF | 4,016,100 | 1.43% | $1.03B | 0.12% | Jun 30, 2026 |
| Fidelity 500 Index Fund | 3,775,119 | 1.34% | $939.14M | 0.11% | May 31, 2026 |
| Vanguard Value Index Fund | 2,781,349 | 0.99% | $711.11M | 0.28% | Jun 30, 2026 |
| Vanguard Mid-Cap Value Index Fund | 1,875,064 | 0.67% | $479.40M | 1.29% | Jun 30, 2026 |
| Vanguard Institutional Index Fund | 1,584,881 | 0.56% | $405.21M | 0.12% | Jun 30, 2026 |
| Vanguard Energy Index Fund | 1,549,462 | 0.55% | $385.46M | 3.27% | May 31, 2026 |
| Pacer US Cash Cows 100 ETF | 1,217,663 | 0.43% | $385.35M | 2.06% | Jul 31, 2026 |
| iShares Russell Mid-Cap ETF | 1,209,317 | 0.43% | $309.19M | 0.54% | Jun 30, 2026 |
| Vanguard High Dividend Yield Index Fund | 1,184,309 | 0.42% | $374.80M | 0.38% | Jul 31, 2026 |
| Fidelity Mid Cap Index Fund | 1,114,771 | 0.40% | $352.79M | 0.68% | Jul 31, 2026 |
| iShares Russell Mid-Cap Growth ETF | 885,833 | 0.32% | $226.48M | 1.05% | Jun 30, 2026 |
Officers, directors and major owners
People who filed Forms 3, 4 or 5 in the last two years
| Name | Role | Shares owned | % of shares | Latest filing |
|---|---|---|---|---|
| Maryann T. Mannen | Chairman, President & CEO, Director | 110,939 | 0.04% | Aug 4, 2026 |
| Michael J. Hennigan | Executive Chairman, Director | 220,902 | 0.08% | Dec 16, 2025 |
| Shawn M. Lyon | SVP Log & Storage, MPLX GP LLC | 14,133 | 0.01% | Sep 1, 2026 |
| Erin M. Brzezinski | VP and Controller | 1,576 | 0.00% | Aug 31, 2026 |
| Molly R. Benson | Chief Legal Ofc & Corp Sec | 37,619 | 0.01% | Aug 19, 2026 |
| Michael A. Henschen II | Ex VP, Refining | 10,889 | 0.00% | Aug 14, 2026 |
| Ricky D. Hessling | Chief Commercial Officer | 6,525 | 0.00% | May 15, 2026 |
| Maria A. Khoury | Exec VP & Chief Fin Ofc | 4,017 | 0.00% | Mar 3, 2026 |
| Gregory Scott Floerke | Ex VP & COO, MPLX GP LLC | 32,047 | 0.01% | Mar 3, 2026 |
| Timothy J. Aydt | Ex VP, Refining | 15,644 | 0.01% | Mar 4, 2025 |
| John J. Quaid | Exec VP & Chief Fin Ofc | 36,358 | 0.01% | Mar 4, 2025 |
| Jonathan Z. Cohen | Director | 16,235 | 0.01% | May 4, 2026 |
| Evan Bayh | Director | 78,551 | 0.03% | May 4, 2026 |
| J. Michael Stice | Director | 24,721 | 0.01% | May 4, 2026 |
| Kim K.W. Rucker | Director | 19,955 | 0.01% | May 4, 2026 |
| Jeffrey C. Campbell | Director | 8,671 | 0.00% | May 4, 2026 |
| Eileen P. Paterson | Director | 3,203 | 0.00% | May 4, 2026 |
| Kimberly N. Ellison-Taylor | Director | 3,203 | 0.00% | May 4, 2026 |
| Frank M. Semple | Director | 14,720 | 0.01% | May 4, 2026 |
| Khayyal Abdulaziz Fahd Al | Director | 25,951 | 0.01% | May 4, 2026 |
| John P. Surma | Director | 70,901 | 0.03% | May 4, 2026 |
| Charles E. Bunch | Director | 34,734 | 0.01% | Apr 3, 2025 |
| Edward G. Galante | Director | 23,976 | 0.01% | Apr 3, 2025 |
| Susan Tomasky | Director | 28,233 | 0.01% | Apr 3, 2025 |
Insider trades
Common stock transactions reported on Form 4, newest first
| Insider | Date | Transaction | Shares | Price | Value | Shares after |
|---|---|---|---|---|---|---|
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Aug 31, 2026 | Sale | −1,000 | $375.75 | $375.75K | 11,194 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Aug 28, 2026 | Sale | −425 | $368.51 | $156.62K | 12,194 |
| Erin M. Brzezinski VP and Controller | Aug 27, 2026 | Sale | −570 | $362.79 | $206.79K | 1,576 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Option exercise | +7,196 | $47.73 | $343.47K | 37,530 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Sale(10b5-1 plan) | −7,196 | $358.57 | $2.58M | 30,334 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Option exercise | +5,000 | $47.73 | $238.65K | 35,334 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Sale(10b5-1 plan) | −5,000 | $358.57 | $1.79M | 30,334 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Option exercise | +5,000 | $47.73 | $238.65K | 35,334 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Aug 17, 2026 | Sale(10b5-1 plan) | −5,000 | $358.57 | $1.79M | 30,334 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Aug 13, 2026 | Sale | −2,500 | $350.00 | $875.00K | 12,619 |
| Michael A. Henschen II Ex VP, Refining | Aug 12, 2026 | Sale | −6,011 | $341.56 | $2.05M | 10,889 |
| Maryann T. Mannen Chairman, President & CEO, Director | Aug 3, 2026 | Tax withholding | −908 | $311.78 | $283.10K | 110,939 |
| Michael A. Henschen II Ex VP, Refining | Jun 4, 2026 | Option exercise | +4,964 | $49.94 | $247.90K | 21,864 |
| Michael A. Henschen II Ex VP, Refining | Jun 4, 2026 | Sale | −4,964 | $268.85 | $1.33M | 16,900 |
| Michael A. Henschen II Ex VP, Refining | Jun 4, 2026 | Sale | −1,372 | $268.75 | $368.73K | 16,900 |
| Ricky D. Hessling Chief Commercial Officer | May 13, 2026 | Sale | −1,000 | $250.00 | $250.00K | 6,525 |
| Jonathan Z. Cohen Director | Apr 30, 2026 | Award | +727.74 | – | – | 16,235 |
| J. Michael Stice Director | Apr 30, 2026 | Award | +727.74 | – | – | 24,721 |
| Kimberly N. Ellison-Taylor Director | Apr 30, 2026 | Award | +727.74 | – | – | 3,203 |
| Khayyal Abdulaziz Fahd Al Director | Apr 30, 2026 | Award | +727.74 | – | – | 25,951 |
| Evan Bayh Director | Apr 30, 2026 | Award | +727.74 | – | – | 73,001 |
| John P. Surma Director | Apr 30, 2026 | Award | +727.74 | – | – | 60,901 |
| Eileen P. Paterson Director | Apr 30, 2026 | Award | +727.74 | – | – | 3,203 |
| Frank M. Semple Director | Apr 30, 2026 | Award | +727.74 | – | – | 14,720 |
| Jeffrey C. Campbell Director | Apr 30, 2026 | Award | +727.74 | – | – | 2,581 |
| Kim K.W. Rucker Director | Apr 30, 2026 | Award | +727.74 | – | – | 19,955 |
| Ricky D. Hessling Chief Commercial Officer | Mar 13, 2026 | Sale | −1,626 | $228.18 | $371.02K | 7,525 |
| Ricky D. Hessling Chief Commercial Officer | Mar 12, 2026 | Sale | −559 | $230.00 | $128.57K | 9,151 |
| Ricky D. Hessling Chief Commercial Officer | Mar 12, 2026 | Sale | −478 | $228.00 | $108.98K | 9,710 |
| Ricky D. Hessling Chief Commercial Officer | Mar 11, 2026 | Sale | −1,485 | $224.51 | $333.40K | 10,513 |
| Ricky D. Hessling Chief Commercial Officer | Mar 11, 2026 | Sale | −325 | $226.00 | $73.45K | 10,188 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Mar 11, 2026 | Gift | −1,186 | – | – | 15,119 |
| Gregory Scott Floerke Ex VP & COO, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −251 | $206.30 | $51.78K | 31,309 |
| Gregory Scott Floerke Ex VP & COO, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −278 | $206.30 | $57.35K | 31,031 |
| Gregory Scott Floerke Ex VP & COO, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −278 | $206.30 | $57.35K | 31,560 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −257 | $206.30 | $53.02K | 16,821 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −237 | $206.30 | $48.89K | 16,584 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Mar 2, 2026 | Tax withholding | −279 | $206.30 | $57.56K | 16,305 |
| Ricky D. Hessling Chief Commercial Officer | Mar 2, 2026 | Gift | −2,028 | – | – | 11,998 |
| Ricky D. Hessling Chief Commercial Officer | Mar 2, 2026 | Tax withholding | −192 | $206.30 | $39.61K | 14,620 |
| Ricky D. Hessling Chief Commercial Officer | Mar 2, 2026 | Tax withholding | −282 | $206.30 | $58.18K | 14,338 |
| Ricky D. Hessling Chief Commercial Officer | Mar 2, 2026 | Tax withholding | −312 | $206.30 | $64.37K | 14,026 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −348 | $206.30 | $71.79K | 30,334 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −284 | $206.30 | $58.59K | 30,682 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 2, 2026 | Tax withholding | −171 | $206.30 | $35.28K | 30,966 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −778 | $206.30 | $160.50K | 114,083 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −952 | $206.30 | $196.40K | 114,861 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 2, 2026 | Tax withholding | −2,236 | $206.30 | $461.29K | 111,847 |
| Erin M. Brzezinski VP and Controller | Mar 2, 2026 | Tax withholding | −59 | $206.30 | $12.17K | 2,146 |
| Erin M. Brzezinski VP and Controller | Mar 2, 2026 | Tax withholding | −42 | $206.30 | $8.66K | 2,205 |
| Erin M. Brzezinski VP and Controller | Mar 2, 2026 | Tax withholding | −49 | $206.30 | $10.11K | 2,247 |
| Michael A. Henschen II Ex VP, Refining | Mar 2, 2026 | Tax withholding | −191 | $206.30 | $39.40K | 18,272 |
| Michael A. Henschen II Ex VP, Refining | Mar 2, 2026 | Tax withholding | −123 | $206.30 | $25.37K | 18,463 |
| Michael A. Henschen II Ex VP, Refining | Mar 2, 2026 | Tax withholding | −167 | $206.30 | $34.45K | 18,586 |
| Gregory Scott Floerke Ex VP & COO, MPLX GP LLC | Mar 1, 2026 | Award | +1,730 | – | – | 31,838 |
| Shawn M. Lyon SVP Log & Storage, MPLX GP LLC | Mar 1, 2026 | Award | +1,730 | – | – | 17,078 |
| Ricky D. Hessling Chief Commercial Officer | Mar 1, 2026 | Award | +2,748 | – | – | 14,812 |
| Molly R. Benson Chief Legal Ofc & Corp Sec | Mar 1, 2026 | Award | +2,544 | – | – | 31,137 |
| Maria A. Khoury Exec VP & Chief Fin Ofc | Mar 1, 2026 | Award | +2,443 | – | – | 4,017 |
| Maryann T. Mannen Chairman, President & CEO, Director | Mar 1, 2026 | Award | +15,266 | – | – | 115,813 |
Awards, option exercises, tax withholding and gifts are shown alongside open-market buys and sales. Each name links to the filing on SEC EDGAR.
Short interest
Shares sold short and not yet bought back, as of Oct 30, 2026 (FINRA, reported twice a month)
Short % of float
2.28%
6M shares short
Days to cover
3.0
At 2M shares a day
Change since last report
-10.8%
From 7M shares
Short volume, 20 days
49.4%
Of volume reported to FINRA
Shares sold short, last 12 months
Short sale volume counts trades marked short on any given day, including market-maker hedging, so it runs far higher than the share of Marathon Petroleum's stock actually held short. Settlement fails (shares not delivered on time) peaked at 11,653 shares on Sep 4, 2026 over the last 90 days.
Planned insider sales
Notices of proposed sale filed on Form 144 before shares are sold
| Seller | Filed | Shares | Market value | Planned sale | Acquired through |
|---|---|---|---|---|---|
| Shawn M. Lyon Officer | Aug 31, 2026 | 1,000 | $375.74K | Aug 31, 2026 | Compensation |
| Shawn M. Lyon Officer | Aug 28, 2026 | 425 | $156.61K | Aug 28, 2026 | Compensation |
| Erin M. Brzezinski Officer | Aug 27, 2026 | 570 | $206.79K | Aug 27, 2026 | Restricted Stock Vesting |
| Carl Kristopher Hagedorn Officer | Aug 24, 2026 | 897 | $323.96K | Aug 24, 2026 | Restricted Stock Vesting |
| Shawn M. Lyon Officer | Aug 20, 2026 | 2,500 | $874.97K | Aug 13, 2026 | Compensation |
| Molly R. Benson Officer | Aug 17, 2026 | 17,196 | $6.17M | Aug 17, 2026 | Stock Option Exercise |
| Michael A. Henschen II Officer | Aug 12, 2026 | 6,011 | $2.05M | Aug 12, 2026 | Restricted Stock Vesting |
| Michael A. Henschen II Officer | Jun 4, 2026 | 6,336 | $1.70M | Jun 4, 2026 | Restricted Stock Vesting |
| Ricky D. Hessling Officer | May 13, 2026 | 1,000 | $250.00K | May 13, 2026 | Open Market Purchase |
| Michael J. Hennigan Former Director | Mar 24, 2026 | 25,000 | $6.06M | Mar 24, 2026 | Restricted Stock Vesting |
| Michael J. Hennigan Former Director | Mar 19, 2026 | 25,000 | $5.98M | Mar 19, 2026 | Restricted Stock Vesting |
| Ricky D. Hessling Officer | Mar 13, 2026 | 1,626 | $371.02K | Mar 13, 2026 | Restricted Stock Vesting |
| Ricky D. Hessling Officer | Mar 12, 2026 | 1,037 | $237.55K | Mar 12, 2026 | Restricted Stock Vesting |
| Ricky D. Hessling Officer | Mar 11, 2026 | 1,810 | $406.85K | Mar 11, 2026 | Restricted Stock Vesting |
| John J. Quaid Former Officer | Mar 11, 2026 | 5,000 | $1.12M | Mar 11, 2026 | Restricted Stock Vesting |
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