Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionEnsign Peak Advisors, Inc
Latest Disclosed Ownership163,607 shares
Latest Disclosed Value $ 39,949,557
Ensign Peak Advisors, Inc reports 6.80% increase in ownership of MPC / Marathon Petroleum Corporation

On May 13, 2026 - Ensign Peak Advisors, Inc filed a 13F-HR form disclosing ownership of 163,607 shares of Marathon Petroleum Corporation (US:MPC) valued at $39,949,557 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 153,187 shares of Marathon Petroleum Corporation. This represents a change in shares of 6.80% during the quarter. The current value of the position is $42,866,670 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 163,607 10,420 6.80 39,950 60.36 0.0744
2026-02-12 2025-12-31 13F MARATHON PETE COM 56585A102 153,187 8,975 6.22 24,913 -10.37 0.0440
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 144,212 -3,835 -2.59 27,795 13.02 0.0456
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 148,047 -62,582 -29.71 24,592 -19.86 0.0421
2025-05-14 2025-03-31 13F MARATHON PETE COM 56585A102 210,629 -38,263 -15.37 30,687 -11.62 0.0587
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 248,892 9,342 3.90 34,720 -11.03 0.0617
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 239,550 -5,371 -2.19 39,025 -8.15 0.0686
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 244,921 -2,565 -1.04 42,489 -14.80 0.0776
2024-05-14 2024-03-31 13F MARATHON PETE COM 56585A102 247,486 -6,850 -2.69 49,868 32.16 0.0911
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 254,336 -90,316 -26.20 37,733 -27.66 0.0747
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 344,652 -28,526 -7.64 52,160 19.87 0.1114
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 373,178 -87,743 -19.04 43,513 -29.98 0.0882
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 460,921 19,980 4.53 62,146 21.09 0.1344
2023-02-13 2022-12-31 13F Marathon Petroleum COM 56585A102 440,941 -117,965 -21.11 51,321 -7.56 0.1156
2022-11-14 2022-09-30 13F Marathon Petroleum COM 56585A102 558,906 101,435 22.17 55,516 47.62 0.1379
2022-08-12 2022-06-30 13F Marathon Petroleum COM 56585A102 457,471 76,357 20.04 37,608 15.42 0.0894
2022-05-16 2022-03-31 13F Marathon Petroleum COM 56585A102 381,114 10,896 2.94 32,585 37.55 0.0662
2022-02-11 2021-12-31 13F Marathon Petroleum COM 56585A102 370,218 -17,134 -4.42 23,690 -1.05 0.0453
2021-11-12 2021-09-30 13F Marathon Petroleum COM 56585A102 387,352 -80,051 -17.13 23,942 -15.22 0.0499
2021-08-13 2021-06-30 13F Marathon Petroleum COM 56585A102 467,403 -607,254 -56.51 28,240 -50.87 0.0570
2021-05-12 2021-03-31 13F Marathon Petroleum COM 56585A102 1,074,657 -150,820 -12.31 57,483 13.41 0.1236
2021-02-12 2020-12-31 13F Marathon Petroleum COM 56585A102 1,225,477 392,635 47.14 50,686 107.43 0.1150
2020-11-12 2020-09-30 13F Marathon Petroleum COM 56585A102 832,842 134,082 19.19 24,435 -6.45 0.0617
2020-08-12 2020-06-30 13F Marathon Petroleum COM 56585A102 698,760 462,623 195.91 26,120 368.35 0.0710
2020-05-11 2020-03-31 13F Marathon Petroleum COM 56585A102 236,137 -26,347 -10.04 5,577 -64.74 0.0187
2020-02-14 2019-12-31 13F Marathon Petroleum COM 56585A102 262,484 262,484 15,815 0.0418
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.