Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionFiduciary Trust Co
Latest Disclosed Ownership3,091 shares
Latest Disclosed Value $ 754,735
Fiduciary Trust Co reports 0.61% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Fiduciary Trust Co filed a 13F-HR form disclosing ownership of 3,091 shares of Marathon Petroleum Corporation (US:MPC) valued at $754,760 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 3,110 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.61% during the quarter. The current value of the position is $825,946 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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 3,091 -19 -0.61 755 49.31 0.0052
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 3,110 -1 -0.03 506 -15.69 0.0057
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 3,111 142 4.78 600 21.50 0.0068
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 2,969 -323 -9.81 493 2.92 0.0061
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 3,292 23 0.70 480 5.04 0.0063
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 3,269 -4,641 -58.67 456 -64.60 0.0060
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 7,910 0 0.00 1,289 -6.12 0.0180
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 7,910 4,683 145.12 1,372 111.08 0.0206
2024-05-14 2024-03-31 13F MARATHON PETE COM 56585A102 3,227 377 13.23 650 54.03 0.0100
2024-02-12 2023-12-31 13F MARATHON PETE COM 56585A102 2,850 -110 -3.72 423 -5.59 0.0071
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 2,960 -100 -3.27 448 25.56 0.0082
2023-08-01 2023-06-30 13F MARATHON PETE COM 56585A102 3,060 -199 -6.11 357 -18.91 0.0063
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 3,259 0 0.00 439 15.83 0.0081
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 3,259 -50 -1.51 379 15.20 0.0074
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 3,309 164 5.21 329 27.52 0.0071
2022-08-12 2022-06-30 13F MARATHON PETE COM 56585A102 3,145 -1 -0.03 258 -4.09 0.0054
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 3,146 3,146 269 0.0048
2021-08-14 2021-06-30 13F MARATHON PETE COM 56585A102 0 -27,024 -100.00 0 -100.00
2021-05-19 2021-03-31 13F MARATHON PETE COM 56585A102 27,024 -482 -1.75 1,445 26.98 0.0293
2021-01-26 2020-12-31 13F MARATHON PETE COM 56585A102 27,506 -1,021 -3.58 1,138 35.96 0.0237
2020-11-13 2020-09-30 13F MARATHON PETE COM 56585A102 28,527 -12,197 -29.95 837 -45.01 0.0197
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 40,724 -15,407 -27.45 1,522 14.87 0.0377
2020-05-15 2020-03-31 13F MARATHON PETE COM 56585A102 56,131 -6,372 -10.19 1,325 -64.82 0.0384
2020-02-04 2019-12-31 13F MARATHON PETE COM 56585A102 62,503 0 0.00 3,766 -0.82 0.0878
2019-11-12 2019-09-30 13F MARATHON PETE COM 56585A102 62,503 -455 -0.72 3,797 7.93 0.0953
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 62,958 504 0.81 3,518 -5.89 0.0923
2019-05-07 2019-03-31 13F MARATHON PETE COM 56585A102 62,454 -5,131 -7.59 3,738 -6.27 0.1005
2019-01-29 2018-12-31 13F MARATHON PETE COM 56585A102 67,585 -633 -0.93 3,988 -26.89 0.1222
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 68,218 -150 -0.22 5,455 13.72 0.1531
2018-08-03 2018-06-30 13F MARATHON PETE COM 56585A102 68,368 -720 -1.04 4,797 -5.03 0.1452
2018-05-07 2018-03-31 13F MARATHON PETE COM 56585A102 69,088 24,015 53.28 5,051 69.84 0.1561
2018-01-29 2017-12-31 13F MARATHON PETE COM 56585A102 45,073 -1,953 -4.15 2,974 12.78 0.0884
2017-11-02 2017-09-30 13F MARATHON PETE COM 56585A102 47,026 -6,250 -11.73 2,637 -5.42 0.0811
2017-08-09 2017-06-30 13F MARATHON PETE COM 56585A102 53,276 -6,436 -10.78 2,788 -7.59 0.0855
2017-05-15 2017-03-31 13F MARATHON PETE COM 56585A102 59,712 -3,810 -6.00 3,017 -5.66 0.0922
2017-02-14 2016-12-31 13F MARATHON PETE COM 56585A102 63,522 -15,645 -19.76 3,198 -0.47 0.1036
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 79,167 1,451 1.87 3,213 8.92 0.1100
2016-08-12 2016-06-30 13F MARATHON PETE COM 56585A102 77,716 23,161 42.45 2,950 45.46 0.1036
2016-05-16 2016-03-31 13F MARATHON PETE COM 56585A102 54,555 24,497 81.50 2,028 30.08 0.0717
2016-02-03 2015-12-31 13F MARATHON PETROLEUM COMMON 56585A102 30,058 5,996 24.92 1,559 39.82 0.0661
2015-11-10 2015-09-30 13F MARATHON PETROLEUM COMMON 56585A102 24,062 24,062 1,115 0.0503
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.