Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionPoehling Capital Management, LLC
Latest Disclosed Ownership24,220 shares
Latest Disclosed Value $ 5,914,040
Poehling Capital Management, LLC reports 0.46% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 21, 2026 - Poehling Capital Management, LLC filed a 13F-HR form disclosing ownership of 24,220 shares of Marathon Petroleum Corporation (MX:MPC) valued at $5,914,040 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 24,332 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.46% 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)
2026-04-21 2026-03-31 13F MARATHON PETE COM 56585A102 24,220 -112 -0.46 5,914 49.46 1.2433
2026-02-06 2025-12-31 13F MARATHON PETE COM 56585A102 24,332 -105 -0.43 3,957 -15.97 0.8096
2025-11-05 2025-09-30 13F MARATHON PETE COM 56585A102 24,437 -20 -0.08 4,710 15.93 0.9900
2025-08-11 2025-06-30 13F MARATHON PETE COM 56585A102 24,457 0 0.00 4,063 14.01 0.9489
2025-05-02 2025-03-31 13F MARATHON PETE COM 56585A102 24,457 -112 -0.46 3,563 3.97 0.9017
2025-02-18 2024-12-31 13F MARATHON PETE COM 56585A102 24,569 -100 -0.41 3,427 -14.71 0.8432
2024-11-13 2024-09-30 13F MARATHON PETE COM 56585A102 24,669 -28 -0.11 4,019 -6.21 1.0276
2024-08-09 2024-06-30 13F MARATHON PETE COM 56585A102 24,697 -140 -0.56 4,284 -14.39 1.1724
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 24,837 -9 -0.04 5,005 35.76 1.3407
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 24,846 25 0.10 3,686 -1.86 1.1673
2023-11-15 2023-09-30 13F MARATHON PETE COM 56585A102 24,821 -18,557 -42.78 3,756 -25.73 1.3144
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 43,378 -1,200 -2.69 5,058 -15.86 1.7090
2023-05-11 2023-03-31 13F MARATHON PETE COM 56585A102 44,578 -430 -0.96 6,010 14.74 2.0256
2023-02-13 2022-12-31 13F MARATHON PETE COM 56585A102 45,008 -9,827 -17.92 5,238 -3.84 1.9614
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 54,835 -29,249 -34.79 5,447 -21.21 2.2823
2022-08-09 2022-06-30 13F MARATHON PETE COM 56585A102 84,084 -10,634 -11.23 6,913 -14.63 2.6003
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 94,718 -16,651 -14.95 8,098 13.62 2.5024
2022-01-10 2021-12-31 13F MARATHON PETE COM 56585A102 111,369 -318 -0.28 7,127 3.24 2.3007
2021-11-12 2021-09-30 13F MARATHON PETE COM 56585A102 111,687 -2,929 -2.56 6,903 -0.32 2.3309
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 114,616 -1,342 -1.16 6,925 11.64 2.2056
2021-05-11 2021-03-31 13F MARATHON PETE COM 56585A102 115,958 -1,891 -1.60 6,203 27.27 2.1710
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 117,849 -3,012 -2.49 4,874 37.45 1.9333
2020-11-10 2020-09-30 13F MARATHON PETE COM 56585A102 120,861 12,771 11.82 3,546 -12.23 1.8202
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 108,090 31,532 41.19 4,040 123.45 2.1723
2020-05-06 2020-03-31 13F MARATHON PETE COM 56585A102 76,558 26,850 54.02 1,808 -39.63 1.3247
2020-02-10 2019-12-31 13F MARATHON PETE COM 56585A102 49,708 2,770 5.90 2,995 5.05 1.9617
2019-11-12 2019-09-30 13F MARATHON PETE COM 56585A102 46,938 -1,958 -4.00 2,851 4.36 2.0917
2019-08-09 2019-06-30 13F MARATHON PETE COM 56585A102 48,896 6,053 14.13 2,732 6.55 1.8305
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 42,843 15,359 55.88 2,564 58.08 1.8688
2019-02-13 2018-12-31 13F MARATHON PETE COM 56585A102 27,484 9,799 55.41 1,622 14.71 1.5642
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 17,685 7,285 70.05 1,414 93.70 1.0022
2018-08-08 2018-06-30 13F MARATHON PETE COM 56585A102 10,400 -7,475 -41.82 730 -44.15 0.6390
2018-05-14 2018-03-31 13F MARATHON PETE COM 56585A102 17,875 -310 -1.70 1,307 8.92 1.0554
2018-02-12 2017-12-31 13F Marathon Pete COM 56585A102 18,185 18,185 1,200 1.0194
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.