Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionIng Groep Nv
Latest Disclosed Ownership26,634 shares
Latest Disclosed Value $ 6,503,490
Ing Groep Nv reports 982.24% increase in ownership of MPC / Marathon Petroleum Corporation

On May 11, 2026 - Ing Groep Nv filed a 13F-HR form disclosing ownership of 26,634 shares of Marathon Petroleum Corporation (US:MPC) valued at $6,503,490 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 2,461 shares of Marathon Petroleum Corporation. This represents a change in shares of 982.24% during the quarter. The current value of the position is $7,116,871 USD.

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)
2026-05-11 2026-03-31 13F MARATHON PETE COM 56585A102 26,634 24,173 982.24 6,503 1,525.75 0.0398
2026-02-11 2025-12-31 13F MARATHON PETE COM 56585A102 2,461 -58,781 -95.98 400 -96.61 0.0024
2025-11-06 2025-09-30 13F MARATHON PETE COM 56585A102 61,242 20,950 52.00 11,804 76.37 0.0639
2025-08-06 2025-06-30 13F MARATHON PETE COM 56585A102 40,292 -10,926 -21.33 6,693 -10.31 0.0407
2025-05-09 2025-03-31 13F MARATHON PETE COM 56585A102 51,218 -732,798 -93.47 7,462 -93.18 0.0517
2025-02-03 2024-12-31 13F MARATHON PETE COM 56585A102 784,016 83,587 11.93 109,370 -4.15 0.7370
2024-11-06 2024-09-30 13F MARATHON PETE COM 56585A102 700,429 700,429 114,107 0.6632
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 0 -46,295 -100.00 0 -100.00
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 46,295 -88,555 -65.67 9,328 -53.37 0.0639
2024-02-08 2023-12-31 13F MARATHON PETE COM 56585A102 134,850 -61,215 -31.22 20,006 -32.58 0.1607
2023-10-27 2023-09-30 13F MARATHON PETE COM 56585A102 196,065 -57,510 -22.68 29,672 0.36 0.2618
2023-08-07 2023-06-30 13F MARATHON PETE COM 56585A102 253,575 -83,840 -24.85 29,567 -35.01 0.2242
2023-05-09 2023-03-31 13F MARATHON PETE COM 56585A102 337,415 91,863 37.41 45,494 59.18 0.4417
2023-02-13 2022-12-31 13F MARATHON PETE COM 56585A102 245,552 165,870 208.16 28,580 261.07 0.2868
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 79,682 -23,654 -22.89 7,915 -6.83 0.1325
2022-08-08 2022-06-30 13F MARATHON PETE COM 56585A102 103,336 35,484 52.30 8,495 46.44 0.0982
2022-05-13 2022-03-31 13F MARATHON PETE COM 56585A102 67,852 -14,484 -17.59 5,801 10.10 0.0585
2022-02-11 2021-12-31 13F MARATHON PETE COM 56585A102 82,336 -388,235 -82.50 5,269 -81.88 0.0471
2021-11-02 2021-09-30 13F MARATHON PETE COM 56585A102 470,571 416,524 770.67 29,086 790.57 0.3734
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 54,047 -401,065 -88.12 3,266 -86.58 0.0521
2021-05-12 2021-03-31 13F MARATHON PETE COM 56585A102 455,112 412,126 958.74 24,344 1,269.18 0.5044
2021-02-11 2020-12-31 13F MARATHON PETE COM 56585A102 42,986 26,103 154.61 1,778 259.19 0.0397
2020-11-12 2020-09-30 13F MARATHON PETE COM 56585A102 16,883 11,383 206.96 495 140.29 0.0204
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 5,500 -25,384 -82.19 206 -71.74 0.0089
2020-05-06 2020-03-31 13F MARATHON PETE COM 56585A102 30,884 -13,654 -30.66 729 -72.83 0.0312
2020-02-10 2019-12-31 13F MARATHON PETE COM 56585A102 44,538 3,455 8.41 2,683 7.49 0.0816
2019-11-08 2019-09-30 13F MARATHON PETE COM 56585A102 41,083 41,083 2,496 0.0634
2019-08-12 2019-06-30 13F MARATHON PETE COM 56585A102 0 -100,329 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 100,329 100,329 6,005 0.1299
2019-02-13 2018-12-31 13F MARATHON PETE COM 56585A102 0 -4,810 -100.00 0 -100.00
2018-11-06 2018-09-30 13F MARATHON PETE COM 56585A102 4,810 4,810 385 0.0067
2018-08-10 2018-06-30 13F MARATHON PETE COM 56585A102 0 -48,471 -100.00 0 -100.00
2018-05-07 2018-03-31 13F MARATHON PETE COM 56585A102 48,471 48,471 3,544 0.0642
2018-02-06 2017-12-31 13F MARATHON PETE COM 56585A102 0 -17,251 -100.00 0 -100.00
2017-11-08 2017-09-30 13F MARATHON PETE COM 56585A102 17,251 17,251 967 0.0186
2017-07-25 2017-06-30 13F MARATHON PETE COM 56585A102 0 -26,924 -100.00 0 -100.00
2017-05-01 2017-03-31 13F MARATHON PETE COM 56585A102 26,924 -172,269 -86.48 1,361 -86.46 0.0247
2017-02-06 2016-12-31 13F MARATHON PETE COM 56585A102 199,193 179,567 914.94 10,049 1,188.33 0.1886
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 19,626 929 4.97 780 9.86 0.0094
2016-07-27 2016-06-30 13F MARATHON PETE COM 56585A102 18,697 6,571 54.19 710 57.43 0.0095
2016-05-12 2016-03-31 13F MARATHON PETE COM 56585A102 12,126 -1,579,500 -99.24 451 -99.45 0.0056
2016-02-12 2015-12-31 13F MARATHON PETE COM 56585A102 1,591,626 -463,305 -22.55 82,542 -13.26 0.4966
2015-12-09 2015-09-30 13F/A-1 MARATHON PETE COM 56585A102 2,054,931 -405,801 -16.49 95,164 -26.07 0.6583
2015-11-10 2015-09-30 13F MARATHON PETE COM 56585A102 2,054,931 95,164
2015-08-10 2015-06-30 13F MARATHON PETE COM 56585A102 2,460,732 1,921,325 356.19 128,721 133.00 0.6974
2015-05-14 2015-03-31 13F MARATHON PETE COM 56585A102 539,407 -376,477 -41.11 55,246 -33.17 0.2774
2015-02-17 2014-12-31 13F MARATHON PETE COM 56585A102 915,884 238,744 35.26 82,668 44.17 0.3891
2014-11-14 2014-09-30 13F MARATHON PETE CORP COM COM 56585A102 677,140 206,486 43.87 57,340 56.05 0.3330
2014-08-14 2014-06-30 13F MARATHON PETE COM 56585A102 470,654 -87,684 -15.70 36,745 -24.41 0.1858
2014-05-14 2014-03-31 13F MARATHON PETE CORP COM COM 56585A102 558,338 398,403 249.10 48,608 231.48 0.2569
2014-02-14 2013-12-31 13F MARATHON PETE COM 56585A102 159,935 69,979 77.79 14,664 153.31 0.0738
2013-11-13 2013-09-30 13F MARATHON PETE COM 56585A102 89,956 -65,068 -41.97 5,789 -47.31 0.0291
2013-08-14 2013-06-30 13F MARATHON PETE COM 56585A102 155,024 155,024 10,987 0.0580
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.