Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionPnc Financial Services Group, Inc.
Latest Disclosed Ownership344,132 shares
Latest Disclosed Value $ 84,030,078
Pnc Financial Services Group, Inc. reports 1.57% increase in ownership of MPC / Marathon Petroleum Corporation

On May 8, 2026 - Pnc Financial Services Group, Inc. filed a 13F-HR form disclosing ownership of 344,132 shares of Marathon Petroleum Corporation (MX:MPC) valued at $84,030,078 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 338,812 shares of Marathon Petroleum Corporation. This represents a change in shares of 1.57% 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)
2026-05-08 2026-03-31 13F MARATHON PETE COM 56585A102 344,132 5,320 1.57 84,030 52.50 0.0080
2026-02-06 2025-12-31 13F MARATHON PETE COM 56585A102 338,812 -758 -0.22 55,101 -15.81 0.0301
2025-11-07 2025-09-30 13F MARATHON PETE COM 56585A102 339,570 -8,063 -2.32 65,449 13.34 0.0397
2025-08-08 2025-06-30 13F MARATHON PETE COM 56585A102 347,633 5,080 1.48 57,745 15.71 0.0372
2025-05-09 2025-03-31 13F MARATHON PETE COM 56585A102 342,553 -10,834 -3.07 49,907 1.24 0.0261
2025-02-07 2024-12-31 13F MARATHON PETE COM 56585A102 353,387 -11,430 -3.13 49,297 -17.05 0.0330
2024-11-08 2024-09-30 13F MARATHON PETE COM 56585A102 364,817 777 0.21 59,432 -5.89 0.0379
2024-08-09 2024-06-30 13F MARATHON PETE COM 56585A102 364,040 -14,022 -3.71 63,154 -17.10 0.0420
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 378,062 -24,173 -6.01 76,179 27.66 0.0530
2024-03-22 2023-12-31 13F/A-1 MARATHON PETE COM 56585A102 402,235 -5,869 -1.44 59,676 -3.38 0.0469
2024-02-09 2023-12-31 13F MARATHON PETE COM 56585A102 402,235 -5,869 59,676 0.0096
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 408,104 129 0.03 61,763 29.84 0.0529
2023-08-11 2023-06-30 13F MARATHON PETE COM 56585A102 407,975 -899 -0.22 47,570 -13.71 0.0405
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 408,874 5,819 1.44 55,128 17.52 0.0484
2023-02-10 2022-12-31 13F MARATHON PETE COM 56585A102 403,055 -9,278 -2.25 46,912 14.54 0.0450
2022-11-10 2022-09-30 13F MARATHON PETE COM 56585A102 412,333 -8,429 -2.00 40,957 18.41 0.0428
2022-08-12 2022-06-30 13F MARATHON PETE COM 56585A102 420,762 -1,389 -0.33 34,590 -4.16 0.0339
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 422,151 468 0.11 36,093 33.77 0.0316
2022-02-11 2021-12-31 13F MARATHON P Common Stock 56585A102 421,683 72,700 20.83 26,982 25.10 0.0223
2021-11-05 2021-09-30 13F MARATHON P Common Stock 56585A102 348,983 -12,086 -3.35 21,569 -1.13 0.0200
2021-08-06 2021-06-30 13F MARATHON P Common Stock 56585A102 361,069 -36,422 -9.16 21,816 2.61 0.0198
2021-05-07 2021-03-31 13F MARATHON P Common Stock 56585A102 397,491 -10,721 -2.63 21,261 25.92 0.0206
2021-02-12 2020-12-31 13F MARATHON P Common Stock 56585A102 408,212 -27,745 -6.36 16,885 31.99 0.0170
2020-11-06 2020-09-30 13F MARATHON P Common Stock 56585A102 435,957 -49,122 -10.13 12,793 -29.45 0.0158
2020-08-28 2020-06-30 13F/A-1 MARATHON P Common Stock 56585A102 485,079 -34,195 -6.59 18,133 47.83 0.0241
2020-08-07 2020-06-30 13F MARATHON P Common Stock 56585A102 485,079 -34,195 18,133 3,765.1072
2020-05-08 2020-03-31 13F MARATHON P Common Stock 56585A102 519,274 -58,147 -10.07 12,266 -64.74 0.0154
2020-02-07 2019-12-31 13F MARATHON P Common Stock 56585A102 577,421 -63,734 -9.94 34,789 -10.68 0.0342
2019-11-08 2019-09-30 13F MARATHON P Common Stock 56585A102 641,155 -7,411 -1.14 38,950 7.47 0.0389
2019-08-09 2019-06-30 13F MARATHON P Common Stock 56585A102 648,566 -121,545 -15.78 36,243 -21.37 0.0355
2019-05-10 2019-03-31 13F MARATHON P Common Stock 56585A102 770,111 16,675 2.21 46,091 3.67 0.0462
2019-02-08 2018-12-31 13F MARATHON P Common Stock 56585A102 753,436 18,007 2.45 44,460 -24.40 0.0495
2018-11-09 2018-09-30 13F MARATHON P Common Stock 56585A102 735,429 107,965 17.21 58,812 33.60 0.0558
2018-08-10 2018-06-30 13F MARATHON P Common Stock 56585A102 627,464 20,958 3.46 44,022 -0.72 0.0434
2018-05-11 2018-03-31 13F MARATHON P Common Stock 56585A102 606,506 -13,500 -2.18 44,343 8.39 0.0437
2018-02-09 2017-12-31 13F MARATHON P Common Stock 56585A102 620,006 -7,008 -1.12 40,910 16.34 0.0397
2017-11-13 2017-09-30 13F MARATHON P Common Stock 56585A102 627,014 -11,083 -1.74 35,163 5.31 0.0365
2017-08-11 2017-06-30 13F MARATHON P 56585A102 638,097 542 0.09 33,391 3.63 0.0359
2017-05-12 2017-03-31 13F MARATHON P Common Stock 56585A102 637,555 -157,769 -19.84 32,221 -19.54 0.0357
2017-02-10 2016-12-31 13F MARATHON P Common Stock 56585A102 795,324 -11,295 -1.40 40,044 22.31 0.0457
2016-11-04 2016-09-30 13F MARATHON P Common Stock 56585A102 806,619 -37,267 -4.42 32,740 2.20 0.0381
2016-08-05 2016-06-30 13F MARATHON P Common Stock 56585A102 843,886 -57,538 -6.38 32,034 -4.42 0.0375
2016-05-06 2016-03-31 13F MARATHON P Common Stock 56585A102 901,424 -56,685 -5.92 33,516 -32.52 0.0392
2016-02-05 2015-12-31 13F MARATHON P Common Stock 56585A102 958,109 -210,767 -18.03 49,669 -8.28 0.0585
2015-11-06 2015-09-30 13F MARATHON P Common Stock 56585A102 1,168,876 18,798 1.63 54,154 -9.98 0.0647
2015-08-05 2015-06-30 13F MARATHON P Common Stock 56585A102 1,150,078 561,405 95.37 60,161 -0.19 0.0673
2015-05-08 2015-03-31 13F MARATHON P Common Stock 56585A102 588,673 -90,006 -13.26 60,273 -1.61 0.0662
2015-02-06 2014-12-31 13F/A-1 MARATHON P Common Stock 56585A102 678,679 -59,251 -8.03 61,259 -1.95 0.0673
2015-02-06 2014-12-31 13F MARATHON P Common Stock 56585A102 678,679 61,259
2014-11-07 2014-09-30 13F MARATHON PETE COM 56585A102 737,930 59,641 8.79 62,480 17.99 0.0736
2014-08-08 2014-06-30 13F MARATHON PETE COM 56585A102 678,289 92,313 15.75 52,954 3.83 0.0674
2014-05-09 2014-03-31 13F MARATHON PETE COM 56585A102 585,976 8,444 1.46 51,003 -3.73 0.0671
2014-02-07 2013-12-31 13F MARATHON PETE COM 56585A102 577,532 105,919 22.46 52,977 74.65 0.0703
2013-11-01 2013-09-30 13F MARATHON PETE COM 56585A102 471,613 26,868 6.04 30,333 -4.02 0.0442
2013-08-02 2013-06-30 13F MARATHON PETE COM 56585A102 444,745 444,745 31,604 0.0462
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.