Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionFranklin Resources Inc
Latest Disclosed Ownership397,906 shares
Latest Disclosed Value $ 97,160,670
Franklin Resources Inc reports 79.28% increase in ownership of MPC / Marathon Petroleum Corporation

On May 13, 2026 - Franklin Resources Inc filed a 13F-HR form disclosing ownership of 397,906 shares of Marathon Petroleum Corporation (US:MPC) valued at $97,160,687 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 221,952 shares of Marathon Petroleum Corporation. This represents a change in shares of 79.28% during the quarter. The current value of the position is $106,324,462 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.

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)
2026-05-13 2026-03-31 13F MARATHON PETE COM 56585A102 397,906 175,954 79.28 97,161 169.17 0.0039
2026-02-11 2025-12-31 13F MARATHON PETE COM 56585A102 221,952 35,444 19.00 36,096 0.41 0.0089
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 186,508 -8,851 -4.53 35,948 10.77 0.0090
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 195,359 -136,557 -41.14 32,451 -32.89 0.0086
2025-05-13 2025-03-31 13F MARATHON PETE COM 56585A102 331,916 -231,549 -41.09 48,357 -38.48 0.0139
2025-02-12 2024-12-31 13F MARATHON PETE COM 56585A102 563,465 -80,055 -12.44 78,603 -24.83 0.0218
2024-11-27 2024-09-30 13F/A-1 MARATHON PETE COM 56585A102 643,520 -115,913 -15.26 104,572 -20.63 0.0294
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 643,520 -115,913 104,572 0.0050
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 759,433 -41,686 -5.20 131,745 -18.39 0.0405
2024-05-13 2024-03-31 13F MARATHON PETE COM 56585A102 801,119 109,056 15.76 161,426 57.22 0.0511
2024-02-09 2023-12-31 13F MARATHON PETE COM 56585A102 692,063 103,471 17.58 102,675 15.26 0.0480
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 588,592 -75,315 -11.34 89,078 15.07 0.0453
2023-08-11 2023-06-30 13F MARATHON PETE COM 56585A102 663,907 127,255 23.71 77,411 6.99 0.0368
2023-05-12 2023-03-31 13F MARATHON PETE COM 56585A102 536,652 -1,900,499 -77.98 72,357 -74.49 0.0363
2023-02-10 2022-12-31 13F MARATHON PETE COM 56585A102 2,437,151 -260,672 -9.66 283,660 5.85 0.1474
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 2,697,823 -1,309,474 -32.68 267,976 -18.66 0.1460
2022-08-11 2022-06-30 13F MARATHON PETE COM 56585A102 4,007,297 -4,181,332 -51.06 329,440 -52.95 0.1634
2022-05-13 2022-03-31 13F MARATHON PETE COM 56585A102 8,188,629 -2,742,053 -25.09 700,132 0.10 0.2798
2022-02-11 2021-12-31 13F MARATHON PETE COM 56585A102 10,930,682 -895,621 -7.57 699,454 -4.31 0.2523
2021-11-12 2021-09-30 13F MARATHON PETE COM 56585A102 11,826,303 756,958 6.84 730,983 9.30 0.2752
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 11,069,345 -925,259 -7.71 668,809 4.24 0.2555
2021-05-13 2021-03-31 13F MARATHON PETE COM 56585A102 11,994,604 1,051,475 9.61 641,592 41.75 0.2610
2021-02-10 2020-12-31 13F MARATHON PETE COM 56585A102 10,943,129 10,631,585 3,412.55 452,608 4,851.95 0.1916
2020-11-12 2020-09-30 13F MARATHON PETE COM 56585A102 311,544 -7,326 -2.30 9,140 -25.99 0.0044
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 318,870 59,998 23.18 12,350 101.96 0.0064
2020-05-13 2020-03-31 13F MARATHON PETE COM 56585A102 258,872 72,054 38.57 6,115 -45.67 0.0041
2020-03-11 2019-12-31 13F/A-1 MARATHON PETE COM 56585A102 186,818 12,389 7.10 11,256 6.23 0.0059
2020-02-12 2019-12-31 13F MARATHON PETE COM 56585A102 186,818 12,389 11,256 1,421.7869
2019-11-14 2019-09-30 13F MARATHON PETE COM 56585A102 174,429 -8,123 -4.45 10,596 3.87 0.0058
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 182,552 14,489 8.62 10,201 1.41 0.0054
2019-05-15 2019-03-31 13F/A-1 MARATHON PETE COM 56585A102 168,063 24,633 17.17 10,059 18.84 0.0054
2019-05-14 2019-03-31 13F MARATHON PETE COM 56585A102 168,063 24,633 10,059
2019-02-12 2018-12-31 13F MARATHON PETE COM 56585A102 143,430 19,261 15.51 8,464 -14.76 0.0051
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 124,169 -41,805 -25.19 9,930 -14.73 0.0049
2018-08-14 2018-06-30 13F MARATHON PETE COM 56585A102 165,974 -18,825 -10.19 11,646 -13.80 0.0060
2018-05-10 2018-03-31 13F MARATHON PETE COM 56585A102 184,799 -38,296 -17.17 13,511 -8.21 0.0068
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 223,095 -4,130 -1.82 14,720 15.51 0.0071
2017-11-13 2017-09-30 13F MARATHON PETE COM 56585A102 227,225 -2,030 -0.89 12,743 6.22 0.0062
2017-08-10 2017-06-30 13F MARATHON PETE COM 56585A102 229,255 -12,900 -5.33 11,997 -1.97 0.0060
2017-05-12 2017-03-31 13F MARATHON PETE COM 56585A102 242,155 -23,231 -8.75 12,238 -8.42 0.0062
2017-02-14 2016-12-31 13F MARATHON PETE COM 56585A102 265,386 -9,960 -3.62 13,363 19.57 0.0069
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 275,346 74,775 37.28 11,176 46.78 0.0058
2016-08-11 2016-06-30 13F MARATHON PETE COM 56585A102 200,571 45,485 29.33 7,614 32.03 0.0041
2016-05-10 2016-03-31 13F MARATHON PETE COM 56585A102 155,086 16,600 11.99 5,767 -19.67 0.0031
2016-04-27 2015-12-31 13F/A-1 MARATHON PETE COM 56585A102 138,486 21,600 18.48 7,179 32.58 0.0036
2016-02-12 2015-12-31 13F MARATHON PETE COM 56585A102 138,486 7,179
2015-11-10 2015-09-30 13F MARATHON PETE COM 56585A102 116,886 -16,900 -12.63 5,415 -22.62 0.0027
2015-08-12 2015-06-30 13F MARATHON PETE COM 56585A102 133,786 68,743 105.69 6,998 5.08 0.0032
2015-05-14 2015-03-31 13F MARATHON PETE COM 56585A102 65,043 11,713 21.96 6,660 38.35 0.0030
2015-02-10 2014-12-31 13F MARATHON PETE COM 56585A102 53,330 1,449 2.79 4,814 9.58 0.0022
2014-11-12 2014-09-30 13F MARATHON PETE COM 56585A102 51,881 1,015 2.00 4,393 10.63 0.0020
2014-08-12 2014-06-30 13F MARATHON PETE COM 56585A102 50,866 -975 -1.88 3,971 -11.99 0.0017
2014-05-13 2014-03-31 13F MARATHON PETE COM 56585A102 51,841 1,839 3.68 4,512 -1.64 0.0021
2014-02-12 2013-12-31 13F MARATHON PETE COM 56585A102 50,002 36,309 265.16 4,587 420.66 0.0022
2013-11-14 2013-09-30 13F MARATHON PETE COM 56585A102 13,693 0 0.00 881 -9.46 0.0005
2013-08-09 2013-06-30 13F MARATHON PETE COM 56585A102 13,693 13,693 973 0.0006
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.