Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionPFG Advisors
Latest Disclosed Ownership8,198 shares
Latest Disclosed Value $ 2,001,724
PFG Advisors reports 8.60% increase in ownership of MPC / Marathon Petroleum Corporation

On May 5, 2026 - PFG Advisors filed a 13F-HR form disclosing ownership of 8,198 shares of Marathon Petroleum Corporation (US:MPC) valued at $2,001,788 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 7,549 shares of Marathon Petroleum Corporation. This represents a change in shares of 8.60% during the quarter. The current value of the position is $2,190,588 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)
2026-05-05 2026-03-31 13F MARATHON PETE COM 56585A102 8,198 649 8.60 2,002 63.08 0.0975
2026-01-27 2025-12-31 13F MARATHON PETE COM 56585A102 7,549 -4,094 -35.16 1,228 -45.32 0.0596
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 11,643 763 7.01 2,244 24.18 0.0919
2025-08-07 2025-06-30 13F MARATHON PETE COM 56585A102 10,880 2,141 24.50 1,807 41.95 0.0835
2025-05-06 2025-03-31 13F MARATHON PETE COM 56585A102 8,739 1,863 27.09 1,273 32.74 0.0712
2025-02-07 2024-12-31 13F MARATHON PETE COM 56585A102 6,876 -1,257 -15.46 959 -27.57 0.0587
2024-10-15 2024-09-30 13F MARATHON PETE COM 56585A102 8,133 6,344 354.61 1,325 327.10 0.0836
2024-08-08 2024-06-30 13F MARATHON PETE COM 56585A102 1,789 130 7.84 310 -7.19 0.0210
2024-05-07 2024-03-31 13F MARATHON PETE COM 56585A102 1,659 1,659 334 0.0244
2023-10-13 2023-09-30 13F MARATHON PETE COM 56585A102 0 -7,325 -100.00 0 -100.00
2023-07-20 2023-06-30 13F MARATHON PETE COM 56585A102 7,325 7,325 854 0.0650
2023-04-21 2023-03-31 13F MARATHON PETE COM 56585A102 0 -3,738 -100.00 0 -100.00
2023-01-30 2022-12-31 13F MARATHON PETE COM 56585A102 3,738 -7,940 -67.99 435 -62.50 0.0426
2022-10-14 2022-09-30 13F MARATHON PETE COM 56585A102 11,678 -650 -5.27 1,160 14.51 0.1326
2022-07-13 2022-06-30 13F MARATHON PETE COM 56585A102 12,328 -3,400 -21.62 1,013 -24.68 0.1146
2022-04-19 2022-03-31 13F MARATHON PETE COM 56585A102 15,728 15,728 1,345 0.1343
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.