Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionForthRight Wealth Management, LLC
Latest Disclosed Ownership9,602 shares
Latest Disclosed Value $ 2,344,616
ForthRight Wealth Management, LLC ownership in MPC / Marathon Petroleum Corporation

On May 12, 2026 - ForthRight Wealth Management, LLC filed a 13F-HR form disclosing ownership of 9,602 shares of Marathon Petroleum Corporation (US:MPC) valued at $2,344,616 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 13, 2026 disclosing 9,602 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $2,565,750 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)
2026-05-12 2026-03-31 13F MARATHON PETE COM 56585A102 9,602 0 0.00 2,345 50.16 0.6651
2026-01-13 2025-12-31 13F MARATHON PETE COM 56585A102 9,602 0 0.00 1,562 -15.62 0.4489
2025-11-07 2025-09-30 13F MARATHON PETE COM 56585A102 9,602 0 0.00 1,851 16.06 0.5378
2025-07-28 2025-06-30 13F MARATHON PETE COM 56585A102 9,602 -700 -6.79 1,595 6.27 0.4974
2025-04-15 2025-03-31 13F MARATHON PETE COM 56585A102 10,302 0 0.00 1,501 4.38 0.5021
2025-01-17 2024-12-31 13F MARATHON PETE COM 56585A102 10,302 -480 -4.45 1,437 -18.17 0.4790
2024-10-28 2024-09-30 13F MARATHON PETE COM 56585A102 10,782 0 0.00 1,756 -6.10 0.5848
2024-07-12 2024-06-30 13F MARATHON PETE COM 56585A102 10,782 -377 -3.38 1,870 -16.81 0.6723
2024-04-23 2024-03-31 13F MARATHON PETE COM 56585A102 11,159 0 0.00 2,249 35.83 0.8070
2024-01-23 2023-12-31 13F MARATHON PETE COM 56585A102 11,159 -407 -3.52 1,656 -5.43 0.6413
2023-10-24 2023-09-30 13F MARATHON PETE COM 56585A102 11,566 0 0.00 1,750 29.82 0.7542
2023-07-17 2023-06-30 13F MARATHON PETE COM 56585A102 11,566 0 0.00 1,349 -13.53 0.5638
2023-04-18 2023-03-31 13F MARATHON PETE COM 56585A102 11,566 0 0.00 1,559 15.82 0.7140
2023-01-18 2022-12-31 13F MARATHON PETE Equity 56585A102 11,566 -820 -6.62 1,346 9.43 0.6884
2022-10-17 2022-09-30 13F MARATHON PETE Equity 56585A102 12,386 -600 -4.62 1,230 15.17 0.7215
2022-07-15 2022-06-30 13F MARATHON PETE COM 56585A102 12,986 0 0.00 1,068 -3.78 0.5938
2022-04-19 2022-03-31 13F/A-1 MARATHON PETE Equity 56585A102 12,986 0 0.00 1,110 33.57 0.5737
2022-04-14 2022-03-31 13F MARATHON PETE Equity 56585A102 1,110 -11,876 1,110 0.5737
2022-01-24 2021-12-31 13F MARATHON PETE Equity 56585A102 12,986 -160 -1.22 831 2.21 0.4542
2021-10-26 2021-09-30 13F MARATHON PETE Common Stock 56585A102 13,146 0 0.00 813 2.39 0.4936
2021-07-23 2021-06-30 13F MARATHON PETE Equity 56585A102 13,146 0 0.00 794 12.94 0.5036
2021-04-26 2021-03-31 13F MARATHON PETE Common Stock 56585A102 13,146 0 0.00 703 29.23 0.4770
2021-01-29 2020-12-31 13F MARATHON PETE Common Stock 56585A102 13,146 13,146 544 0.4274
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.