Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionAmeriprise Financial Inc
Latest Disclosed Ownership2,224,185 shares
Latest Disclosed Value $ 543,107,730
Ameriprise Financial Inc reports 1.10% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Ameriprise Financial Inc filed a 13F-HR form disclosing ownership of 2,224,185 shares of Marathon Petroleum Corporation (MX:MPC) valued at $543,107,730 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,248,954 shares of Marathon Petroleum Corporation. This represents a change in shares of -1.10% 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.

Upgrade to unlock premium data and export to Excel .

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 PETROLEUM COM 56585A102 2,224,185 -24,769 -1.10 543,108 48.49 0.0233
2026-02-17 2025-12-31 13F MARATHON PETROLEUM COM 56585A102 2,248,954 4,605 0.21 365,752 -15.45 0.0827
2025-11-14 2025-09-30 13F MARATHON PETROLEUM COM 56585A102 2,244,349 -537,272 -19.32 432,588 -6.38 0.0994
2025-08-14 2025-06-30 13F MARATHON PETROLEUM COM 56585A102 2,781,621 -418,176 -13.07 462,080 -0.90 0.1139
2025-05-14 2025-03-31 13F MARATHON PETROLEUM COM 56585A102 3,199,797 -1,462,339 -31.37 466,254 -28.28 0.1259
2025-02-14 2024-12-31 13F MARATHON PETROLEUM COM 56585A102 4,662,136 -117,626 -2.46 650,137 -16.58 0.1668
2024-11-14 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 4,779,762 229,515 5.04 779,312 -1.28 0.1999
2024-08-14 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 4,550,247 -283,801 -5.87 789,377 -18.96 0.2136
2024-05-15 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 4,834,048 -459,837 -8.69 974,095 23.98 0.2681
2024-02-14 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 5,293,885 23,244 0.44 785,700 -1.51 0.2352
2023-11-14 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 5,270,641 -455,934 -7.96 797,710 19.47 0.2619
2023-08-14 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 5,726,575 143,750 2.57 667,715 -11.30 0.2093
2023-05-22 2023-03-31 13F/A-1 MARATHON PETROLEUM COM 56585A102 5,582,825 -608,199 -9.82 752,744 4.47 0.2468
2023-05-15 2023-03-31 13F MARATHON OIL COM 56585A102 5,582,825 -608,199 752,744 0.0455
2023-02-14 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 6,191,024 97,260 1.60 720,548 19.02 0.2470
2022-11-14 2022-09-30 13F MARATHON PETROLEUM COM 56585A102 6,093,764 -181,588 -2.89 605,395 17.35 0.2239
2022-08-15 2022-06-30 13F MARATHON PETROLEUM COM 56585A102 6,275,352 1,102,656 21.32 515,895 16.83 0.1799
2022-05-16 2022-03-31 13F MARATHON PETROLEUM COM 56585A102 5,172,696 -43,332 -0.83 441,576 32.44 0.1303
2022-02-14 2021-12-31 13F MARATHON PETROLEUM COM 56585A102 5,216,028 291,925 5.93 333,408 9.44 0.0922
2021-11-15 2021-09-30 13F MARATHON PETROLEUM COM 56585A102 4,924,103 -253,656 -4.90 304,650 -2.62 0.0973
2021-08-16 2021-06-30 13F MARATHON PETROLEUM COM 56585A102 5,177,759 68,382 1.34 312,850 14.47 0.0967
2021-05-17 2021-03-31 13F MARATHON PETROLEUM COM 56585A102 5,109,377 501,789 10.89 273,294 43.36 0.0908
2021-02-12 2020-12-31 13F MARATHON PETROLEUM COM 56585A102 4,607,588 -139,293 -2.93 190,631 36.85 0.0676
2020-11-16 2020-09-30 13F MARATHON PETROLEUM COM 56585A102 4,746,881 -413,652 -8.02 139,299 -28.14 0.0567
2020-08-14 2020-06-30 13F MARATHON PETROLEUM COM 56585A102 5,160,533 -614,096 -10.63 193,846 43.80 0.0830
2020-05-15 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 5,774,629 -1,794,137 -23.70 134,799 -70.41 0.0708
2020-02-14 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 7,568,766 1,316,671 21.06 455,536 19.33 0.1894
2019-11-14 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 6,252,095 -1,232,117 -16.46 381,757 -8.76 0.1711
2019-08-14 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 7,484,212 2,125,040 39.65 418,413 30.45 0.1874
2019-05-15 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 5,359,172 25,241 0.47 320,751 1.89 0.1475
2019-02-14 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 5,333,931 301,997 6.00 314,810 -21.77 0.1574
2018-11-14 2018-09-30 13F MARATHON PETROLEUM C COM 56585A102 5,031,934 184,876 3.81 402,394 18.35 0.1407
2018-08-14 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 4,847,058 -82,581 -1.68 339,999 -5.66 0.1504
2018-05-14 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 4,929,639 1,491,156 43.37 360,406 59.07 0.1631
2018-02-12 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 3,438,483 -32,914 -0.95 226,573 16.38 0.1033
2017-11-07 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 3,471,397 -255,458 -6.85 194,677 -0.19 0.0927
2017-08-10 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 3,726,855 482,824 14.88 195,038 18.96 0.0976
2017-05-05 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 3,244,031 18,842 0.58 163,953 0.98 0.0848
2017-02-03 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 3,225,189 -83,904 -2.54 162,365 20.90 0.0887
2016-11-08 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 3,309,093 -69,326 -2.05 134,302 4.72 0.0752
2016-08-08 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 3,378,419 -435,475 -11.42 128,244 -9.56 0.0752
2016-05-12 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 3,813,894 -1,836,855 -32.51 141,804 -51.59 0.0846
2016-02-11 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 5,650,749 2,243,076 65.82 292,915 85.54 0.1719
2015-11-12 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 3,407,673 140,281 4.29 157,873 -7.63 0.0978
2015-08-13 2015-06-30 13F MARATHON PETROLEUM COM 56585A102 3,267,392 1,832,682 127.74 170,919 16.35 0.0973
2015-05-14 2015-03-31 13F MARATHON PETROLEUM COM 56585A102 1,434,710 -67,989 -4.52 146,899 8.30 0.0843
2015-02-13 2014-12-31 13F MARATHON PETROLEUM COM 56585A102 1,502,699 -60,506 -3.87 135,635 2.48 0.0790
2014-11-14 2014-09-30 13F MARATHON PETROLEUM COM 56585A102 1,563,205 -375,549 -19.37 132,358 -12.56 0.0796
2014-08-13 2014-06-30 13F MARATHON PETROLEUM COM 56585A102 1,938,754 -744,040 -27.73 151,362 -35.18 0.0893
2014-05-14 2014-03-31 13F MARATHON PETROLEUM COM 56585A102 2,682,794 39,114 1.48 233,512 -3.71 0.1402
2014-02-14 2013-12-31 13F MARATHON PETROLEUM COM 56585A102 2,643,680 -21,407 -0.80 242,506 41.47 0.1469
2013-11-14 2013-09-30 13F MARATHON PETROLEUM COM 56585A102 2,665,087 -1,412,090 -34.63 171,420 -40.81 0.1125
2013-08-14 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 4,077,177 4,077,177 289,623 0.2005
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.