Marathon Petroleum (MPC)
Marathon Petroleum on one page: short interest, daily short volume, fails to deliver, planned sales, large holders, 13F holders, financials, earnings dates and insider trades. Listed on NYSE, classified by the SEC as petroleum refining.
7.1M
Short interest
settlement 2026-10-15
3.6
Days to cover
+1.7 days vs prior
41.6%
Short share of volume
2026-10-28
2
Fails to deliver
settlement 2026-09-28
Tue 3 Nov
Next earnings
estimated date
-$9.8M
Insider flow, 90 days
0 buys, 8 sells
As of 2026-10-28.
Short interest
FINRA, twice a month. The newest 48 settlements in the table, 48 in the chart. JSONAs of 15 October 2026, short interest in MPC is 7,145,349 shares, down 569,854 shares over the last month. Over the last 48 readings it ranged from 5,585,954 shares (30 April 2026) to 11,355,093 shares (30 June 2025). At the reported average volume of 2.0M shares a day that is 3.6 days to cover.
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| Settlement | Shares short | Change | Avg daily volume | Days to cover |
|---|---|---|---|---|
| 2026-10-15 | 7,145,349 | +1.5% | 1,955,062 | 3.65 |
| 2026-09-30 | 7,039,952 | -8.8% | 3,546,657 | 1.98 |
| 2026-09-15 | 7,715,203 | +1.5% | 2,399,047 | 3.22 |
| 2026-08-31 | 7,601,383 | +16.6% | 2,512,689 | 3.03 |
| 2026-08-14 | 6,521,760 | -3.9% | 2,630,897 | 2.48 |
| 2026-07-31 | 6,786,536 | +5.8% | 2,006,212 | 3.38 |
| 2026-07-15 | 6,412,255 | -12.1% | 2,013,578 | 3.18 |
| 2026-06-30 | 7,290,864 | -5.0% | 2,816,433 | 2.59 |
| 2026-06-15 | 7,673,768 | +21.6% | 2,343,992 | 3.27 |
| 2026-05-29 | 6,312,262 | +6.1% | 2,294,750 | 2.75 |
| 2026-05-15 | 5,947,128 | +6.5% | 2,525,399 | 2.35 |
| 2026-04-30 | 5,585,954 | -12.0% | 2,146,964 | 2.60 |
| 2026-04-15 | 6,348,348 | -6.7% | 2,168,473 | 2.93 |
| 2026-03-31 | 6,803,010 | -15.4% | 3,094,852 | 2.20 |
| 2026-03-13 | 8,038,630 | +1.2% | 3,249,834 | 2.47 |
| 2026-02-27 | 7,946,172 | -9.6% | 2,259,134 | 3.52 |
| 2026-02-13 | 8,793,250 | -1.5% | 2,561,534 | 3.43 |
| 2026-01-30 | 8,928,450 | -0.6% | 1,951,103 | 4.58 |
| 2026-01-15 | 8,983,903 | -2.4% | 2,602,386 | 3.45 |
| 2025-12-31 | 9,200,800 | -5.8% | 2,407,372 | 3.82 |
| 2025-12-15 | 9,768,852 | +5.5% | 2,168,288 | 4.51 |
| 2025-11-28 | 9,263,628 | +28.5% | 1,878,573 | 4.93 |
| 2025-11-14 | 7,210,689 | -4.5% | 2,546,934 | 2.83 |
| 2025-10-31 | 7,547,623 | +2.4% | 1,576,460 | 4.79 |
| 2025-10-15 | 7,374,144 | -1.3% | 1,544,486 | 4.77 |
| 2025-09-30 | 7,470,350 | -5.0% | 2,167,238 | 3.45 |
| 2025-09-15 | 7,861,133 | -3.1% | 1,783,367 | 4.41 |
| 2025-08-29 | 8,111,300 | +3.7% | 1,826,666 | 4.44 |
| 2025-08-15 | 7,822,443 | +5.5% | 1,850,133 | 4.23 |
| 2025-07-31 | 7,414,136 | -24.2% | 1,720,285 | 4.31 |
| 2025-07-15 | 9,780,237 | -13.9% | 2,340,865 | 4.18 |
| 2025-06-30 | 11,355,093 | +23.1% | 3,613,555 | 3.14 |
| 2025-06-13 | 9,221,738 | +2.5% | 2,075,557 | 4.44 |
| 2025-05-30 | 8,995,618 | -4.0% | 2,346,062 | 3.83 |
| 2025-05-15 | 9,370,232 | +10.8% | 2,736,550 | 3.42 |
| 2025-04-30 | 8,458,969 | +2.0% | 2,335,070 | 3.62 |
| 2025-04-15 | 8,293,268 | -2.7% | 3,767,960 | 2.20 |
| 2025-03-31 | 8,520,298 | -7.2% | 3,049,896 | 2.79 |
| 2025-03-14 | 9,180,768 | +14.1% | 2,762,330 | 3.32 |
| 2025-02-28 | 8,044,941 | +0.2% | 2,633,976 | 3.05 |
| 2025-02-14 | 8,028,626 | +6.0% | 3,107,951 | 2.58 |
| 2025-01-31 | 7,570,756 | -9.2% | 2,607,716 | 2.90 |
| 2025-01-15 | 8,340,774 | +5.4% | 2,985,153 | 2.79 |
| 2024-12-31 | 7,914,659 | -7.7% | 3,581,976 | 2.21 |
| 2024-12-13 | 8,575,831 | +7.7% | 2,492,108 | 3.44 |
| 2024-11-29 | 7,964,977 | +15.8% | 1,812,820 | 4.39 |
| 2024-11-15 | 6,878,621 | -14.5% | 2,315,392 | 2.97 |
| 2024-10-31 | 8,041,674 | -8.4% | 2,318,382 | 3.47 |
Daily short volume
FINRA Reg SHO, the last 30 sessions. JSONAs of 28 October 2026, the short share of MPC volume is 41.6%, down 7.3 points over the last five sessions. Over the last 30 readings it ranged from 34.8% (21 September 2026) to 67.3% (30 September 2026). The latest reading is 12.5 points below the 30-session average of 54.1%, on 986K shares reported.
| Date | Short volume | Total volume | Short share | Exempt |
|---|---|---|---|---|
| 2026-10-28 | 410K | 986K | 41.6% | 195 |
| 2026-10-27 | 574K | 1.3M | 43.8% | 2,951 |
| 2026-10-26 | 259K | 587K | 44.1% | 2 |
| 2026-10-23 | 234K | 584K | 40.1% | 0 |
| 2026-10-22 | 443K | 864K | 51.3% | 418 |
| 2026-10-21 | 448K | 917K | 48.8% | 133 |
| 2026-10-20 | 444K | 750K | 59.2% | 145 |
| 2026-10-19 | 467K | 757K | 61.7% | 554 |
| 2026-10-16 | 415K | 676K | 61.3% | 1,187 |
| 2026-10-15 | 531K | 895K | 59.4% | 2,589 |
| 2026-10-14 | 351K | 748K | 47.0% | 299 |
| 2026-10-13 | 391K | 700K | 55.9% | 2,172 |
| 2026-10-12 | 321K | 531K | 60.5% | 1,055 |
| 2026-10-09 | 491K | 815K | 60.2% | 1,343 |
| 2026-10-08 | 673K | 1.2M | 54.4% | 2,673 |
| 2026-10-07 | 423K | 717K | 59.0% | 3,739 |
| 2026-10-06 | 308K | 521K | 59.1% | 868 |
| 2026-10-05 | 554K | 933K | 59.4% | 1,225 |
| 2026-10-02 | 576K | 921K | 62.6% | 3,692 |
| 2026-10-01 | 578K | 889K | 65.1% | 1,142 |
| 2026-09-30 | 428K | 636K | 67.3% | 426 |
| 2026-09-29 | 379K | 646K | 58.7% | 545 |
| 2026-09-28 | 524K | 968K | 54.1% | 0 |
| 2026-09-25 | 350K | 726K | 48.2% | 426 |
| 2026-09-24 | 430K | 820K | 52.4% | 368 |
| 2026-09-23 | 770K | 1.8M | 43.6% | 1,049 |
| 2026-09-22 | 784K | 1.8M | 44.0% | 1,824 |
| 2026-09-21 | 586K | 1.7M | 34.8% | 805 |
| 2026-09-18 | 627K | 1.1M | 59.3% | 2,464 |
| 2026-09-17 | 598K | 897K | 66.7% | 40 |
Fails to deliver
SEC, the last 30 settlement dates with a fail. JSONAs of 28 September 2026, the fails-to-deliver balance in MPC is 2 shares, down 5,204 shares over the last settlement date. Over the last 30 readings it ranged from 2 shares (28 September 2026) to 23,865,672 shares (29 June 2026). The latest reading sits at the bottom of that range.
| Settlement | Shares failed | Price | Value |
|---|---|---|---|
| 2026-09-28 | 2 | $393.52 | $787 |
| 2026-09-21 | 5,206 | $424.89 | $2.2M |
| 2026-09-18 | 99 | $421.96 | $42K |
| 2026-09-10 | 8,158 | $399.44 | $3.3M |
| 2026-09-04 | 11,653 | $387.71 | $4.5M |
| 2026-08-27 | 6,131 | $362.27 | $2.2M |
| 2026-08-26 | 85 | $354.88 | $30K |
| 2026-08-24 | 611 | $360.72 | $220K |
| 2026-08-19 | 5,609 | $366.21 | $2.1M |
| 2026-08-18 | 949 | $358.18 | $340K |
| 2026-08-04 | 42,326 | $307.03 | $13.0M |
| 2026-08-03 | 78 | $316.47 | $25K |
| 2026-07-10 | 50 | $283.30 | $14K |
| 2026-07-06 | 4 | $266.35 | $1K |
| 2026-07-01 | 2,160 | $255.67 | $552K |
| 2026-06-29 | 23,865,672 | $254.06 | $6.06B |
| 2026-06-22 | 4,060 | $242.91 | $986K |
| 2026-06-16 | 107 | $250.86 | $27K |
| 2026-06-15 | 38 | $263.58 | $10K |
| 2026-06-12 | 4,492 | $260.81 | $1.2M |
| 2026-06-08 | 56,599 | $262.01 | $14.8M |
| 2026-05-26 | 38 | $254.65 | $10K |
| 2026-05-20 | 6,001 | $263.02 | $1.6M |
| 2026-05-18 | 3,080 | $255.03 | $785K |
| 2026-04-27 | 55 | $224.14 | $12K |
| 2026-04-17 | 9 | $226.24 | $2K |
| 2026-04-14 | 4,542 | $225.29 | $1.0M |
| 2026-04-09 | 185 | $231.98 | $43K |
| 2026-04-06 | 75 | $241.73 | $18K |
| 2026-03-31 | 67 | $245.16 | $16K |
Insider trades
SEC Form 4, newest first. JSONInsiders at MPC reported 8 open-market sells worth $9.8M in the last 90 days and no open-market buys. Latest filing: Lyon Shawn M (SVP Log & Storage, MPLX GP LLC) on 2026-08-31.
| Date | Insider | Title | Type | Shares | Price | Value | Owned after |
|---|---|---|---|---|---|---|---|
| 2026-08-31 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Sell | 1K | $375.75 | $376K | 11K |
| 2026-08-28 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Sell | 425 | $368.51 | $157K | 12K |
| 2026-08-27 | Brzezinski Erin M | VP and Controller | Sell | 570 | $362.79 | $207K | 2K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Sell | 5K | $358.57 | $1.8M | 30K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Exercise or conversion | 5K | $47.73 | $239K | 35K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Sell | 5K | $358.57 | $1.8M | 30K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Exercise or conversion | 5K | $47.73 | $239K | 35K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Sell | 7K | $358.57 | $2.6M | 30K |
| 2026-08-17 | Benson Molly R | Chief Legal Ofc & Corp Sec | Exercise or conversion | 7K | $47.73 | $343K | 38K |
| 2026-08-13 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Sell | 3K | $350.00 | $875K | 13K |
| 2026-08-12 | Henschen Michael A II | Ex VP, Refining | Sell | 6K | $341.56 | $2.1M | 11K |
| 2026-08-03 | Mannen Maryann T. | Chairman, President & CEO | Tax withholding | 908 | $311.78 | $283K | 111K |
| 2026-06-04 | Henschen Michael A II | Ex VP, Refining | Sell | 5K | $268.85 | $1.3M | 17K |
| 2026-06-04 | Henschen Michael A II | Ex VP, Refining | Exercise or conversion | 5K | $49.94 | $248K | 22K |
| 2026-06-04 | Henschen Michael A II | Ex VP, Refining | Sell | 1K | $268.75 | $369K | 17K |
| 2026-05-13 | Hessling Ricky D. | Chief Commercial Officer | Sell | 1K | $250.00 | $250K | 7K |
| 2026-04-30 | Al Khayyal Abdulaziz Fahd | Director | Grant | 728 | $0.00 | $0 | 26K |
| 2026-04-30 | Bayh Evan | Director | Grant | 728 | $0.00 | $0 | 73K |
| 2026-04-30 | CAMPBELL JEFFREY C | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | COHEN JONATHAN Z | Director | Grant | 728 | $0.00 | $0 | 16K |
| 2026-04-30 | Ellison-Taylor Kimberly N | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | Paterson Eileen P. | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | Rucker Kim K.W. | Director | Grant | 728 | $0.00 | $0 | 20K |
| 2026-04-30 | SEMPLE FRANK M | Director | Grant | 728 | $0.00 | $0 | 15K |
| 2026-04-30 | STICE J MICHAEL | Director | Grant | 728 | $0.00 | $0 | 25K |
| 2026-04-30 | SURMA JOHN P | Director | Grant | 728 | $0.00 | $0 | 61K |
| 2026-04-30 | SURMA JOHN P | Director | Grant | 728 | $0.00 | $0 | 61K |
| 2026-04-30 | STICE J MICHAEL | Director | Grant | 728 | $0.00 | $0 | 25K |
| 2026-04-30 | SEMPLE FRANK M | Director | Grant | 728 | $0.00 | $0 | 15K |
| 2026-04-30 | Rucker Kim K.W. | Director | Grant | 728 | $0.00 | $0 | 20K |
| 2026-04-30 | Paterson Eileen P. | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | Ellison-Taylor Kimberly N | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | COHEN JONATHAN Z | Director | Grant | 728 | $0.00 | $0 | 16K |
| 2026-04-30 | CAMPBELL JEFFREY C | Director | Grant | 728 | $0.00 | $0 | 3K |
| 2026-04-30 | Bayh Evan | Director | Grant | 728 | $0.00 | $0 | 73K |
| 2026-04-30 | Al Khayyal Abdulaziz Fahd | Director | Grant | 728 | $0.00 | $0 | 26K |
| 2026-03-13 | Hessling Ricky D. | Chief Commercial Officer | Sell | 2K | $228.18 | $371K | 8K |
| 2026-03-12 | Hessling Ricky D. | Chief Commercial Officer | Sell | 559 | $230.00 | $129K | 9K |
| 2026-03-12 | Hessling Ricky D. | Chief Commercial Officer | Sell | 478 | $228.00 | $109K | 10K |
| 2026-03-11 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Gift | 1K | $0.00 | $0 | 15K |
| 2026-03-11 | Hessling Ricky D. | Chief Commercial Officer | Sell | 325 | $226.00 | $73K | 10K |
| 2026-03-11 | Hessling Ricky D. | Chief Commercial Officer | Sell | 1K | $224.51 | $333K | 11K |
| 2026-03-02 | Floerke Gregory Scott | Ex VP & COO, MPLX GP LLC | Tax withholding | 278 | $206.30 | $57K | 31K |
| 2026-03-02 | Mannen Maryann T. | Chairman, President & CEO | Tax withholding | 2K | $206.30 | $461K | 112K |
| 2026-03-02 | Mannen Maryann T. | Chairman, President & CEO | Tax withholding | 778 | $206.30 | $161K | 114K |
| 2026-03-02 | Mannen Maryann T. | Chairman, President & CEO | Tax withholding | 952 | $206.30 | $196K | 115K |
| 2026-03-02 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Tax withholding | 279 | $206.30 | $58K | 16K |
| 2026-03-02 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Tax withholding | 237 | $206.30 | $49K | 17K |
| 2026-03-02 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Tax withholding | 257 | $206.30 | $53K | 17K |
| 2026-03-02 | Hessling Ricky D. | Chief Commercial Officer | Gift | 2K | $0.00 | $0 | 12K |
| 2026-03-02 | Hessling Ricky D. | Chief Commercial Officer | Tax withholding | 312 | $206.30 | $64K | 14K |
| 2026-03-02 | Hessling Ricky D. | Chief Commercial Officer | Tax withholding | 282 | $206.30 | $58K | 14K |
| 2026-03-02 | Hessling Ricky D. | Chief Commercial Officer | Tax withholding | 192 | $206.30 | $40K | 15K |
| 2026-03-02 | Henschen Michael A II | Ex VP, Refining | Tax withholding | 191 | $206.30 | $39K | 18K |
| 2026-03-02 | Henschen Michael A II | Ex VP, Refining | Tax withholding | 123 | $206.30 | $25K | 18K |
| 2026-03-02 | Henschen Michael A II | Ex VP, Refining | Tax withholding | 167 | $206.30 | $34K | 19K |
| 2026-03-02 | Floerke Gregory Scott | Ex VP & COO, MPLX GP LLC | Tax withholding | 251 | $206.30 | $52K | 31K |
| 2026-03-02 | Floerke Gregory Scott | Ex VP & COO, MPLX GP LLC | Tax withholding | 278 | $206.30 | $57K | 32K |
| 2026-03-02 | Brzezinski Erin M | VP and Controller | Tax withholding | 59 | $206.30 | $12K | 2K |
| 2026-03-02 | Brzezinski Erin M | VP and Controller | Tax withholding | 42 | $206.30 | $9K | 2K |
| 2026-03-02 | Brzezinski Erin M | VP and Controller | Tax withholding | 49 | $206.30 | $10K | 2K |
| 2026-03-02 | Benson Molly R | Chief Legal Ofc & Corp Sec | Tax withholding | 348 | $206.30 | $72K | 30K |
| 2026-03-02 | Benson Molly R | Chief Legal Ofc & Corp Sec | Tax withholding | 284 | $206.30 | $59K | 31K |
| 2026-03-02 | Benson Molly R | Chief Legal Ofc & Corp Sec | Tax withholding | 171 | $206.30 | $35K | 31K |
| 2026-03-01 | Mannen Maryann T. | Chairman, President & CEO | Grant | 15K | $0.00 | $0 | 116K |
| 2026-03-01 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Grant | 2K | $0.00 | $0 | 17K |
| 2026-03-01 | Khoury Maria A | Exec VP & Chief Fin Ofc | Grant | 2K | $0.00 | $0 | 4K |
| 2026-03-01 | Hessling Ricky D. | Chief Commercial Officer | Grant | 3K | $0.00 | $0 | 15K |
| 2026-03-01 | Henschen Michael A II | Ex VP, Refining | Grant | 2K | $0.00 | $0 | 19K |
| 2026-03-01 | Floerke Gregory Scott | Ex VP & COO, MPLX GP LLC | Grant | 2K | $0.00 | $0 | 32K |
| 2026-03-01 | Brzezinski Erin M | VP and Controller | Grant | 509 | $0.00 | $0 | 2K |
| 2026-03-01 | Benson Molly R | Chief Legal Ofc & Corp Sec | Grant | 3K | $0.00 | $0 | 31K |
| 2026-02-12 | Henschen Michael A II | Ex VP, Refining | Gift | 511 | $0.00 | $0 | 16K |
| 2026-02-12 | Henschen Michael A II | Ex VP, Refining | Sell | 5K | $202.32 | $1.1M | 17K |
| 2026-02-01 | Khoury Maria A | Exec VP & Chief Fin Ofc | Grant | 2K | $0.00 | $0 | 2K |
| 2025-12-12 | Lyon Shawn M | SVP Log & Storage, MPLX GP LLC | Tax withholding | 86 | $185.77 | $16K | 15K |
| 2025-12-12 | Hessling Ricky D. | Chief Commercial Officer | Tax withholding | 98 | $185.77 | $18K | 12K |
| 2025-12-12 | Henschen Michael A II | Ex VP, Refining | Tax withholding | 160 | $185.77 | $30K | 22K |
| 2025-12-12 | Hennigan Michael J | Executive Chairman | Tax withholding | 466 | $185.77 | $87K | 221K |
| 2025-12-12 | Floerke Gregory Scott | Ex VP & COO, MPLX GP LLC | Tax withholding | 85 | $185.77 | $16K | 30K |
| 2025-12-12 | Benson Molly R | Chief Legal Ofc & Corp Sec | Tax withholding | 107 | $185.77 | $20K | 29K |
| 2025-08-15 | Benson Molly R | Chief Legal Ofc & Corp Sec | Sell | 11K | $163.00 | $1.8M | 29K |
| 2025-08-15 | Benson Molly R | Chief Legal Ofc & Corp Sec | Exercise or conversion | 11K | $62.68 | $682K | 40K |
| 2025-08-01 | Mannen Maryann T. | President & CEO | Tax withholding | 908 | $166.39 | $151K | 101K |
| 2025-07-03 | Rucker Kim K.W. | Director | Sell | 7K | $175.00 | $1.3M | 19K |
| 2025-05-01 | Al Khayyal Abdulaziz Fahd | Director | Grant | 1K | $0.00 | $0 | 25K |
| 2025-05-01 | Bayh Evan | Director | Grant | 1K | $0.00 | $0 | 71K |
| 2025-05-01 | CAMPBELL JEFFREY C | Director | Grant | 1K | $0.00 | $0 | 2K |
| 2025-05-01 | COHEN JONATHAN Z | Director | Grant | 1K | $0.00 | $0 | 15K |
| 2025-05-01 | Ellison-Taylor Kimberly N | Director | Grant | 1K | $0.00 | $0 | 2K |
| 2025-05-01 | Paterson Eileen P. | Director | Grant | 1K | $0.00 | $0 | 2K |
| 2025-05-01 | Rucker Kim K.W. | Director | Grant | 1K | $0.00 | $0 | 26K |
| 2025-05-01 | SEMPLE FRANK M | Director | Grant | 1K | $0.00 | $0 | 14K |
| 2025-05-01 | STICE J MICHAEL | Director | Grant | 1K | $0.00 | $0 | 24K |
| 2025-05-01 | SURMA JOHN P | Director | Grant | 1K | $0.00 | $0 | 59K |
| 2025-04-01 | SURMA JOHN P | Director | Grant | 94 | $0.00 | $0 | 58K |
| 2025-04-01 | STICE J MICHAEL | Director | Grant | 94 | $0.00 | $0 | 22K |
| 2025-04-01 | SEMPLE FRANK M | Director | Grant | 94 | $0.00 | $0 | 12K |
| 2025-04-01 | Rucker Kim K.W. | Director | Grant | 94 | $0.00 | $0 | 25K |
| 2025-04-01 | Paterson Eileen P. | Director | Grant | 94 | $0.00 | $0 | 1K |
Form 4 filings are due within two business days of the trade. Insiders sell for many reasons that say nothing about the company; open-market buys are rarer.
Planned sales (Form 144)
Newest first. JSON20 Form 144 notices on file for MPC worth $48.1M at the prices reported; 7 in the last 90 days worth $10.2M. Latest: Lyon Shawn M filed on 2026-08-31 to sell 1,000 shares ($376K) from 2026-08-31.
| Filed | Seller | Shares | Market value | Of outstanding | Sale from | Broker |
|---|---|---|---|---|---|---|
| 2026-08-31 | Lyon Shawn MOfficer | 1K | $376K | 0.000% | 2026-08-31 | Wells Fargo Clearing Services |
| 2026-08-28 | Lyon Shawn MOfficer | 425 | $157K | 0.000% | 2026-08-28 | Wells Fargo Clearing Services |
| 2026-08-27 | Brzezinski Erin MOfficer | 570 | $207K | 0.000% | 2026-08-27 | Fidelity Brokerage Services LLC |
| 2026-08-24 | HAGEDORN CARL KRISTOPHEROfficer | 897 | $324K | 0.000% | 2026-08-24 | Fidelity Brokerage Services LLC |
| 2026-08-20 | Lyon Shawn MOfficer | 3K | $875K | 0.001% | 2026-08-13 | Wells Fargo Clearing Services |
| 2026-08-17 | Benson Molly ROfficer | 17K | $6.2M | 0.006% | 2026-08-17 | Fidelity Brokerage Services LLC |
| 2026-08-12 | Henschen Michael A IIOfficer | 6K | $2.1M | 0.002% | 2026-08-12 | Fidelity Brokerage Services LLC |
| 2026-06-04 | Henschen Michael A IIOfficer | 6K | $1.7M | 0.002% | 2026-06-04 | Fidelity Brokerage Services LLC |
| 2026-05-13 | Hessling Ricky D.Officer | 1K | $250K | 0.000% | 2026-05-13 | Fidelity Brokerage Services LLC |
| 2026-03-24 | Hennigan Michael JFormer Director | 25K | $6.1M | 0.008% | 2026-03-24 | Fidelity Brokerage Services LLC |
| 2026-03-19 | Hennigan Michael JFormer Director | 25K | $6.0M | 0.008% | 2026-03-19 | Fidelity Brokerage Services LLC |
| 2026-03-13 | Hessling Ricky D.Officer | 2K | $371K | 0.001% | 2026-03-13 | Fidelity Brokerage Services LLC |
| 2026-03-12 | Hessling Ricky D.Officer | 1K | $238K | 0.000% | 2026-03-12 | Fidelity Brokerage Services LLC |
| 2026-03-11 | Quaid John JFormer Officer | 5K | $1.1M | 0.002% | 2026-03-11 | Fidelity Brokerage Services LLC |
| 2026-03-11 | Hessling Ricky D.Officer | 2K | $407K | 0.001% | 2026-03-11 | Fidelity Brokerage Services LLC |
| 2026-03-06 | Hennigan Michael JFormer Director | 25K | $5.5M | 0.008% | 2026-03-06 | Fidelity Brokerage Services LLC |
| 2026-03-02 | Hennigan Michael JFormer Director | 25K | $5.2M | 0.008% | 2026-03-02 | Fidelity Brokerage Services LLC |
| 2026-02-26 | Hennigan Michael JFormer Director | 25K | $5.0M | 0.008% | 2026-02-26 | Fidelity Brokerage Services LLC |
| 2026-02-12 | Henschen Michael A IIOfficer | 5K | $1.1M | 0.002% | 2026-02-12 | Fidelity Brokerage Services LLC |
| 2026-02-06 | Hennigan Michael JFormer Director | 25K | $5.1M | 0.008% | 2026-02-06 | Fidelity Brokerage Services LLC |
Large holders (13D and 13G)
One row per reporting person with its latest filing, newest first. JSON3 holders report 5% or more of MPC in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.9% of the class (22,115,488 shares), filed 2026-10-27 for an event on 2026-09-30.
| Filed | Form | Holder | Shares | Of class | Event |
|---|---|---|---|---|---|
| 2026-10-27 | 13G/Ano. 2 | BlackRock, Inc.parent holding company | 22.1M | 7.9% | 2026-09-30 |
| 2026-04-30 | 13G | Vanguard Capital Managementinvestment adviser | 22.1M | 7.5% | 2026-03-31 |
| 2026-04-29 | 13G | Vanguard Portfolio Managementinvestment adviser | 15.8M | 5.3% | 2026-03-31 |
| 2026-03-27 | 13G/Ano. 14 | The Vanguard Groupinvestment adviser | 0 | 0.0% | 2026-03-13 |
13F holders
Tracked managers holding MPC at their latest 13F. JSON8 of the 30 tracked managers held MPC at their latest 13F, $853.5M in total at quarter-end prices. Two Sigma Investments is the largest at $316.8M (0.2% of its portfolio) as of 2026-06-30. Over the prior quarter 6 added shares and 2 cut.
| Fund | Quarter | Shares | Value | Of portfolio | Change in shares |
|---|---|---|---|---|---|
| Two Sigma Investments | 2026-06-30 | 1.2M | $316.8M | 0.23% | -285K |
| AQR Capital Management | 2026-06-30 | 828K | $211.8M | 0.07% | +396K |
| Millennium Management | 2026-06-30 | 455K | $116.3M | 0.04% | +23K |
| Citadel Advisors | 2026-06-30 | 412K | $105.4M | 0.01% | +210K |
| Bridgewater Associates | 2026-06-30 | 349K | $89.3M | 0.37% | +272K |
| D. E. Shaw & Co. | 2026-06-30 | 37K | $9.3M | 0.00% | +4K |
| Fisher Asset Management | 2026-06-30 | 17K | $4.4M | 0.00% | -1K |
| Point72 Asset Management | 2026-06-30 | 523 | $134K | 0.00% | new |
Only the 30 tracked managers on the funds hub; a 13F reports long positions in US listed stock at quarter end, 45 days late, and says nothing about shorts or positions sold since.
Financials
SEC XBRL, as filed. JSONIn Q2 FY 2026 (quarter ended 2026-06-30) Marathon Petroleum reported revenue of $51.99B, up 53.8% from the same quarter a year earlier, and net income of $5.14B (17.73 diluted EPS). In FY 2025 it generated $8.25B of operating cash flow and spent $3.49B on buybacks and $1.14B on dividends. As of 2026-06-30, cash was $7.77B against $2.12B of debt.
- Cash
- $7.77B
- Debt
- $2.12B
- Equity
- $19.08B
- Total assets
- $94.31B
- Shares outstanding
- 280,824,763
Quarterly, last 8 quarters
| Quarter | Period end | Revenue | Net income | Margin | Diluted EPS |
|---|---|---|---|---|---|
| Q2 FY 2026 | 2026-06-30 | $51.99B | $5.14B | 9.9% | 17.73 |
| Q1 FY 2026 | 2026-03-31 | $34.20B | $511.0M | 1.5% | 1.73 |
| Q4 FY 2025derived | 2025-12-31 | $32.57B | $1.53B | 4.7% | n/a |
| Q3 FY 2025 | 2025-09-30 | $34.81B | $1.37B | 3.9% | 4.51 |
| Q2 FY 2025 | 2025-06-30 | $33.80B | $1.22B | 3.6% | 3.96 |
| Q1 FY 2025 | 2025-03-31 | $31.52B | -$74.0M | -0.2% | -0.24 |
| Q4 FY 2024derived | 2024-12-31 | $33.14B | $371.0M | 1.1% | n/a |
| Q3 FY 2024 | 2024-09-30 | $35.11B | $622.0M | 1.8% | 1.87 |
Fiscal years, with buybacks and dividends
| Fiscal year | Ends | Revenue | Net income | Operating cash flow | Capex | Buybacks | Dividends |
|---|---|---|---|---|---|---|---|
| FY 2025 | 2025-12-31 | $132.70B | $4.05B | $8.25B | $3.49B | $3.49B | $1.14B |
| FY 2024 | 2024-12-31 | $138.86B | $3.44B | $8.66B | $2.53B | $9.19B | $1.15B |
| FY 2023 | 2023-12-31 | $148.38B | $9.68B | $14.12B | $1.89B | $11.57B | $1.26B |
| FY 2022 | 2022-12-31 | $177.45B | $14.52B | $16.36B | $2.42B | $11.92B | $1.28B |
| FY 2021 | 2021-12-31 | $119.98B | $9.74B | $4.36B | $1.46B | $4.65B | $1.48B |
Quarters are the three-month figures the company reports; a fourth quarter marked derived is the fiscal year less the three reported quarters, since companies report it only inside the 10-K. Fiscal years are the annual figures. Buybacks are the cash the company paid to repurchase its common stock in the year, not the amount authorized. Balance sheet lines are as of 2026-06-30; shares outstanding as of 2026-07-30 from the cover page.
What this page is
Marathon Petroleum in the regulatory record
Regulators publish company data in separate files that never sit next to each other: FINRA's twice-monthly short interest, its daily short sale volume, the SEC's fails-to-deliver counts, and each insider's Form 4. A company page puts those series for one ticker on one URL, with planned sales, large holders, 13F holders and financials beside them, so the short position, the daily flow, the settlement fails and what insiders are doing can be read together.
Each section has its own history table, a one-line summary of the latest figures and its own JSON and CSV links, and says when its source last updated.
This page follows Marathon Petroleum (MPC), SEC CIK 1510295, listed on NYSE, classified by the SEC as petroleum refining. The cross-market tables live on the short interest and insider transactions hubs.
Source and updates
- Short interest
- FINRA consolidated short interestSource: FINRA.Twice a month, about eight business days after settlement. Latest 2026-10-15.JSON and CSV
- Daily short volume
- FINRA Reg SHO daily filesSource: FINRA.Every trading day, the morning after FINRA posts it. Latest 2026-10-28.JSON and CSV
- Fails to deliver
- SEC fails-to-deliver dataSource: SEC.Twice a month, a few weeks after the half month ends. Latest 2026-09-28.JSON and CSV
- Planned sales
- SEC EDGAR Form 144Source: SEC.New notices appear shortly after the SEC posts them; a notice is filed on or before the sale. Latest 2026-08-31.JSON and CSV
- Large holders
- SEC EDGAR Schedule 13D and 13GSource: SEC.New filings appear shortly after the SEC posts them. A 13D is due within five business days of crossing 5%; a 13G follows the passive schedule. Latest 2026-10-27.JSON and CSV
- 13F holders
- SEC EDGAR Form 13F-HRSource: SEC.Quarterly, filed within 45 days of quarter end; 30 tracked managers. Latest 2026-06-30.JSON and CSV
- Financials
- SEC EDGAR 10-K and 10-Q filingsSource: SEC.Weekly; values are as filed in the 10-Q and 10-K. Latest 2026-06-30.JSON and CSV
- Earnings dates
- SEC EDGAR 8-K filings (Item 2.02)Source: SEC.Twice a day. Reported dates come from the company's 8-K filings; the next date is marked as an estimate until the 8-K arrives. Latest 2026-08-04.JSON and CSV
- Insider trades
- SEC EDGAR Form 4Source: SEC.New filings appear shortly after the SEC posts them; they're due two business days after the trade. Latest 2026-08-31.JSON and CSV
- Company record
- EDGAR filing index for CIK 1510295Ticker, name and exchange from the SEC's company list, refreshed weekly.
- Rate limits
- 10 requests a minute without a key, 30 with a free key from a free account.
How to read it
- Read the position against the flow: rising short interest with a high daily short share is new shorting; rising short interest with a normal short share is old shorts holding on.
- Insider buys next to a large short position are rare and stand out; insider sells next to one are common and mean little.
- Fails to deliver matter relative to the float, not in absolute shares; a million failed shares in a mega cap is noise.
Analysis of what the data shows, not advice. XOOMAR does not recommend buying, selling or holding anything.
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Datasets
Frequently Asked Questions
How much of MPC is sold short?
7,145,349 shares were held short at the 2026-10-15 settlement, 3.6 days of average volume. FINRA publishes the next count about eight business days after the 15th and the last business day of the month.
What is MPC's daily short volume?
On 2026-10-28, 409,789 of the 985,913 MPC shares reported to FINRA were sold short, 41.6% of the day's reported volume. Short volume is a flow for one day, not a position.
Does MPC have fails to deliver?
The SEC's latest file shows 2 MPC shares failed to deliver at settlement 2026-09-28. Fails are reported per settlement date and published twice a month with a lag.
Are MPC insiders buying or selling?
Insiders at MPC reported 8 open-market sells worth $9.8M in the last 90 days and no open-market buys. Latest filing: Lyon Shawn M (SVP Log & Storage, MPLX GP LLC) on 2026-08-31.
Have MPC insiders filed to sell?
20 Form 144 notices on file for MPC worth $48.1M at the prices reported; 7 in the last 90 days worth $10.2M. Latest: Lyon Shawn M filed on 2026-08-31 to sell 1,000 shares ($376K) from 2026-08-31.
Who owns 5% or more of MPC?
3 holders report 5% or more of MPC in their latest filing, all on Schedule 13G (passive). The largest reported stake is BlackRock, Inc. at 7.9% of the class (22,115,488 shares), filed 2026-10-27 for an event on 2026-09-30.
What did MPC report last quarter?
In Q2 FY 2026 (quarter ended 2026-06-30) Marathon Petroleum reported revenue of $51.99B, up 53.8% from the same quarter a year earlier, and net income of $5.14B (17.73 diluted EPS). In FY 2025 it generated $8.25B of operating cash flow and spent $3.49B on buybacks and $1.14B on dividends. As of 2026-06-30, cash was $7.77B against $2.12B of debt.
Which tracked 13F managers own MPC?
8 of the 30 tracked 13F managers held MPC shares at their latest filing, $853.5M in all. The largest: Two Sigma Investments (1.2M shares, $316.8M), Cliff Asness's AQR Capital Management (828K shares, $211.8M), Izzy Englander's Millennium Management (455K shares, $116.3M), Ken Griffin's Citadel Advisors (412K shares, $105.4M), Ray Dalio's Bridgewater Associates (349K shares, $89.3M), D. E. Shaw & Co. (37K shares, $9.3M). The table above lists all 8.
Data on this page is provided for informational purposes only and is not financial advice. See our editorial policy.