Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionPrudential Financial Inc
Latest Disclosed Ownership221,959 shares
Latest Disclosed Value $ 54,197,949
Prudential Financial Inc reports 35.92% increase in ownership of MPC / Marathon Petroleum Corporation

On May 13, 2026 - Prudential Financial Inc filed a 13F-HR form disclosing ownership of 221,959 shares of Marathon Petroleum Corporation (MX:MPC) valued at $54,197,949 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 163,301 shares of Marathon Petroleum Corporation. This represents a change in shares of 35.92% 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)
2026-05-13 2026-03-31 13F MARATHON PETE COM 56585A102 221,959 58,658 35.92 54,198 104.08 0.0375
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 163,301 -109,114 -40.05 26,558 -49.42 0.0321
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 272,415 -11,994 -4.22 52,505 11.14 0.0624
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 284,409 69,891 32.58 47,243 51.16 0.0610
2025-05-13 2025-03-31 13F MARATHON PETE COM 56585A102 214,518 33,940 18.80 31,253 24.07 0.0445
2025-02-11 2024-12-31 13F MARATHON PETE COM 56585A102 180,578 -47,672 -20.89 25,191 -32.26 0.0345
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 228,250 -16,889 -6.89 37,184 -12.56 0.0524
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 245,139 -264,869 -51.93 42,527 -58.62 0.0638
2024-05-14 2024-03-31 13F MARATHON PETE COM 56585A102 510,008 148,103 40.92 102,767 91.19 0.1447
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 361,905 -683,559 -65.38 53,752 -66.04 0.0812
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 1,045,464 954 0.09 158,258 29.94 0.2483
2023-08-11 2023-06-30 13F MARATHON PETE COM 56585A102 1,044,510 -59,189 -5.36 121,790 -18.16 0.1774
2023-05-12 2023-03-31 13F MARATHON PETE COM 56585A102 1,103,699 95,883 9.51 148,812 26.86 0.2330
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 1,007,816 294,968 41.38 117,300 66.44 0.1977
2022-11-04 2022-09-30 13F MARATHON PETE COM 56585A102 712,848 -495,761 -41.02 70,474 -30.65 0.1195
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 1,208,609 52,191 4.51 101,628 2.79 0.1612
2022-05-13 2022-03-31 13F MARATHON PETE COM 56585A102 1,156,418 513,343 79.83 98,874 141.02 0.1314
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 643,075 -19,932 -3.01 41,024 3.28 0.0510
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 663,007 -16,242 -2.39 39,723 -3.21 0.0554
2021-08-16 2021-06-30 13F MARATHON PETE COM 56585A102 679,249 -35,434 -4.96 41,041 7.36 0.0565
2021-05-12 2021-03-31 13F MARATHON PETE COM 56585A102 714,683 8,789 1.25 38,228 30.93 0.0573
2021-08-16 2020-12-31 13F/A-1 MARATHON PETE COM 0041 56585A102 705,894 704,069 38,579.12 29,197 53,968.52 0.0491
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 705,894 704,069 29,196 0.0491
2021-08-05 2020-09-30 13F/A-1 MARATHON PETE COM 56585A102 1,825 -264 -12.64 54 -30.77 0.0078
2020-11-16 2020-09-30 13F MARATHON PETE COM 56585A102 738,173 736,084 21,658 0.0409
2021-08-05 2020-06-30 13F/A-1 MARATHON PETE COM 0037 56585A102 2,089 -4,985 -70.47 78 -53.29 0.0144
2020-08-12 2020-06-30 13F MARATHON PETE COM 56585A102 772,117 765,043 28,861 0.0556
2021-08-05 2020-03-31 13F/A-1 MARATHON PETE COM 0023 56585A102 7,074 3,102 78.10 167 -30.13 0.0434
2020-05-12 2020-03-31 13F MARATHON PETE COM 56585A102 1,297,418 1,293,446 30,645 0.0679
2021-08-05 2019-12-31 13F/A-1 MARATHON PETE COM 0060 56585A102 3,972 3,356 544.81 239 545.95 0.0623
2020-02-11 2019-12-31 13F MARATHON PETE COM 56585A102 1,628,680 1,628,064 98,127 0.1454
2021-08-05 2019-09-30 13F/A-1 MARATHON PETE COM 0060 56585A102 616 209 51.35 37 60.87 0.0121
2019-11-13 2019-09-30 13F MARATHON PETE COM 56585A102 955,535 955,128 58,077 0.0921
2021-08-05 2019-06-30 13F/A-1 MARATHON PETE COM 56585A102 407 -2,648 -86.68 23 -87.43 0.0080
2019-08-08 2019-06-30 13F MARATHON PETE COM 56585A102 1,024,995 1,021,940 57,276 0.0892
2021-08-05 2019-03-31 13F/A-1 MARATHON PETE COM 56585A102 3,055 1,690 123.81 183 125.93 0.0777
2019-05-15 2019-03-31 13F MARATHON PETE COM 56585A102 2,909,820 2,908,455 174,153 0.2900
2021-08-05 2018-12-31 13F/A-1 MARATHON PETE COM 56585A102 1,365 1,252 1,107.96 81 800.00 0.0656
2019-02-07 2018-12-31 13F MARATHON PETE COM 56585A102 2,321,081 835,246 136,948 0.2405
2021-09-01 2018-09-30 13F/A-1 MARATHON PETE COM 0079 56585A102 113 94 494.74 9 800.00 0.0145
2018-11-07 2018-09-30 13F MARATHON PETE COM 56585A102 1,485,835 1,485,816 118,823 0.1750
2021-09-01 2018-06-30 13F/A-1 MARATHON PETE COM 56585A102 19 -3,669,181 -100.00 1 -100.00 0.0036
2018-08-13 2018-06-30 13F MARATHON PETE COM 56585A102 1,061,494 -2,607,706 74,474 0.1113
2018-05-04 2018-03-31 13F MARATHON PETE COM 56585A102 3,669,200 -272,872 -6.92 268,254 3.13 0.4087
2018-02-13 2017-12-31 13F MARATHON PETE COM 56585A102 3,942,072 -45,634 -1.14 260,107 16.31 0.3543
2017-11-02 2017-09-30 13F MARATHON PETE COM 56585A102 3,987,706 1,520,471 61.63 223,630 73.21 0.3698
2017-08-07 2017-06-30 13F MARATHON PETE COM 56585A102 2,467,235 334,812 15.70 129,110 19.80 0.1921
2017-05-10 2017-03-31 13F MARATHON PETE COM 56585A102 2,132,423 442,833 26.21 107,773 26.69 0.1681
2017-02-07 2016-12-31 13F MARATHON PETE COM 56585A102 1,689,590 -1,578,326 -48.30 85,071 -35.87 0.1368
2016-11-04 2016-09-30 13F MARATHON PETE COM 56585A102 3,267,916 -372,866 -10.24 132,644 -4.02 0.2191
2016-08-09 2016-06-30 13F MARATHON PETE COM 56585A102 3,640,782 -224,548 -5.81 138,204 -3.83 0.2325
2016-05-09 2016-03-31 13F MARATHON PETE COM 56585A102 3,865,330 403,000 11.64 143,713 -19.93 0.2571
2016-02-12 2015-12-31 13F MARATHON PETE COM 56585A102 3,462,330 234,150 7.25 179,487 20.01 0.3250
2015-11-10 2015-09-30 13F MARATHON PETE COM 56585A102 3,228,180 -214,700 -6.24 149,561 -16.96 0.2950
2015-08-06 2015-06-30 13F MARATHON PETE COM 56585A102 3,442,880 1,781,040 107.17 180,097 5.84 0.3197
2015-05-01 2015-03-31 13F MARATHON PETE COM 56585A102 1,661,840 802,720 93.44 170,156 119.43 0.2949
2015-02-06 2014-12-31 13F MARATHON PETE COM 56585A102 859,120 -653,432 -43.20 77,544 -39.45 0.1406
2014-11-12 2014-09-30 13F MARATHON PETE COM 56585A102 1,512,552 120,654 8.67 128,068 17.85 0.2410
2014-08-13 2014-06-30 13F MARATHON PETE COM 56585A102 1,391,898 -7,734 -0.55 108,666 -10.80 0.1917
2014-05-14 2014-03-31 13F MARATHON PETE COM 56585A102 1,399,632 109,757 8.51 121,824 2.96 0.2268
2014-02-11 2013-12-31 13F MARATHON PETE COM 56585A102 1,289,875 -487,911 -27.44 118,320 3.47 0.2349
2013-11-07 2013-09-30 13F MARATHON PETE COM 56585A102 1,777,786 332,981 23.05 114,347 11.38 0.2431
2013-08-07 2013-06-30 13F MARATHON PETE COM 56585A102 1,444,805 1,444,805 102,667 0.2275
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.