Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionAqr Capital Management Llc
ManagerCliff Asness
Latest Disclosed Ownership432,606 shares
Latest Disclosed Value $ 105,633,738
Aqr Capital Management Llc reports 5.66% increase in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Aqr Capital Management Llc filed a 13F-HR form disclosing ownership of 432,606 shares of Marathon Petroleum Corporation (MX:MPC) valued at $105,633,738 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 409,440 shares of Marathon Petroleum Corporation. This represents a change in shares of 5.66% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date		 Effective
Date		Form Security Class ID Avg Price
Paid (Est)		 Reported
Shares		 ΔShares ΔShares
(%)		 Reported
Value
(x1000)		 ΔValue
(%)		 Alloc
(%)		 ΔAlloc ΔAlloc (%) Cost Basis
(x1000)		 Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 432,606 23,166 5.66 105,634 58.64 0.0090
2026-02-17 2025-12-31 13F MARATHON PETE COM 56585A102 409,440 -19,175 -4.47 66,587 -19.40 0.0349
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 428,615 -105,928 -19.82 82,611 -6.96 0.0530
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 534,543 -463,687 -46.45 88,793 -38.59 0.0735
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 998,230 -41,447 -3.99 144,584 0.58 0.1489
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 1,039,677 210,514 25.39 143,746 6.72 0.1852
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 829,163 -368,238 -30.75 134,689 -34.99 0.1859
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 1,197,401 180,213 17.72 207,186 2.32 0.3176
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 1,017,188 -435,153 -29.96 202,492 -6.02 0.3448
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 1,452,341 -172,588 -10.62 215,469 -12.38 0.4056
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 1,624,929 82,576 5.35 245,917 37.46 0.5078
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 1,542,353 106,450 7.41 178,898 -6.56 0.3803
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 1,435,903 -37,925 -2.57 191,463 11.88 0.4203
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 1,473,828 174,979 13.47 171,141 32.65 0.3899
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 1,298,849 650,355 100.29 129,015 142.00 0.3145
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 648,494 337,096 108.25 53,313 100.24 0.1205
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 311,398 229,529 280.36 26,625 408.21 0.0505
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 81,869 58,752 254.15 5,239 266.62 0.0095
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 23,117 -104,536 -81.89 1,429 -81.47 0.0026
2021-08-16 2021-06-30 13F MARATHON PETE COM 56585A102 127,653 86,017 206.59 7,713 246.34 0.0133
2021-05-17 2021-03-31 13F MARATHON PETE COM 56585A102 41,636 -19,486 -31.88 2,227 -11.91 0.0036
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 61,122 -6,436 -9.53 2,528 27.55 0.0045
2020-11-16 2020-09-30 13F MARATHON PETE COM 56585A102 67,558 -277,522 -80.42 1,982 -83.61 0.0034
2020-08-17 2020-06-30 13F MARATHON PETE COM 56585A102 345,080 -493,000 -58.82 12,092 -38.91 0.0196
2020-05-15 2020-03-31 13F MARATHON PETE COM 56585A102 838,080 -671,916 -44.50 19,795 -78.15 0.0333
2020-02-14 2019-12-31 13F MARATHON PETE COM 56585A102 1,509,996 1,009,439 201.66 90,585 197.89 0.1030
2019-11-14 2019-09-30 13F MARATHON PETE COM 56585A102 500,557 -98,532 -16.45 30,409 -9.16 0.0358
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 599,089 -3,404,672 -85.04 33,477 -86.02 0.0374
2019-05-14 2019-03-31 13F MARATHON PETE COM 56585A102 4,003,761 -3,461,410 -46.37 239,425 -45.65 0.2540
2019-02-14 2018-12-31 13F MARATHON PETE COM 56585A102 7,465,171 3,499,279 88.23 440,520 38.90 0.5105
2018-11-15 2018-09-30 13F/A-1 MARATHON PETE COM 56585A102 3,965,892 -203,584 -4.88 317,152 7.31 0.3034
2018-11-14 2018-09-30 13F MARATHON PETE COM 56585A102 4,169,476 0 295,540
2018-08-14 2018-06-30 13F MARATHON PETE COM 56585A102 4,169,476 779,328 22.99 295,540 19.24 0.2977
2018-05-15 2018-03-31 13F MARATHON PETE COM 56585A102 3,390,148 149,993 4.63 247,854 15.94 0.2673
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 3,240,155 158,805 5.15 213,785 23.72 0.2244
2017-11-14 2017-09-30 13F MARATHON PETE COM 56585A102 3,081,350 -107,732 -3.38 172,802 3.55 0.2062
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 3,189,082 486,483 18.00 166,885 22.18 0.2208
2017-05-15 2017-03-31 13F MARATHON PETE COM 56585A102 2,702,599 -498,022 -15.56 136,590 -15.24 0.1815
2017-02-14 2016-12-31 13F MARATHON PETE COM 56585A102 3,200,621 190,698 6.34 161,152 31.91 0.2223
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 3,009,923 -1,802,665 -37.46 122,172 -33.12 0.1870
2016-08-15 2016-06-30 13F MARATHON PETE COM 56585A102 4,812,588 -2,316,828 -32.50 182,686 -31.08 0.3224
2016-07-29 2016-03-31 13F/A-1 MARATHON PETE COM 56585A102 7,129,416 -660,381 -8.48 265,072 -34.36 0.4768
2016-05-16 2016-03-31 13F MARATHON PETE COM 56585A102 7,129,416 265,072
2016-02-16 2015-12-31 13F MARATHON PETE COM 56585A102 7,789,797 -353,803 -4.34 403,823 7.03 0.7069
2015-11-16 2015-09-30 13F MARATHON PETE COM 56585A102 8,143,600 1,085,684 15.38 377,292 2.19 0.7541
2015-08-14 2015-06-30 13F MARATHON PETE COM 56585A102 7,057,916 4,476,018 173.36 369,199 39.66 0.7320
2015-05-15 2015-03-31 13F MARATHON PETE COM 56585A102 2,581,898 556,557 27.48 264,361 44.61 0.6042
2015-04-22 2014-12-31 13F/A-1 MARATHON PETE COM 56585A102 2,025,341 655,180 47.82 182,807 57.58 0.3828
2015-02-17 2014-12-31 13F MARATHON PETE COM 56585A102 2,025,341 182,807
2014-11-14 2014-09-30 13F MARATHON PETE COM 56585A102 1,370,161 393,739 40.32 116,012 52.19 0.3188
2014-08-14 2014-06-30 13F MARATHON PETE COM 56585A102 976,422 220,682 29.20 76,229 15.88 0.2054
2014-05-15 2014-03-31 13F MARATHON PETE COM 56585A102 755,740 -71,004 -8.59 65,780 -13.26 0.1985
2014-02-14 2013-12-31 13F MARATHON PETE COM 56585A102 826,744 299,929 56.93 75,837 123.81 0.2264
2013-11-14 2013-09-30 13F MARATHON PETE COM 56585A102 526,815 304,782 137.27 33,885 114.76 0.1194
2013-08-14 2013-06-30 13F MARATHON PETE COM 56585A102 222,033 -11,408 -4.89 15,778 7.28 0.0560
2013-05-29 2012-12-31 13F/A-1 MARATHON PETE COM 56585A102 233,441 233,441 14,707 0.0630
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.