Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionFidelis Capital Partners, LLC
Latest Disclosed Ownership3,083 shares
Latest Disclosed Value $ 752,807
Fidelis Capital Partners, LLC reports 2.63% increase in ownership of MPC / Marathon Petroleum Corporation

On May 6, 2026 - Fidelis Capital Partners, LLC filed a 13F-HR form disclosing ownership of 3,083 shares of Marathon Petroleum Corporation (MX:MPC) valued at $752,807 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 3,004 shares of Marathon Petroleum Corporation. This represents a change in shares of 2.63% 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.

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)
2026-05-06 2026-03-31 13F MARATHON PETE COM 56585A102 3,083 79 2.63 753 54.10 0.0536
2026-02-09 2025-12-31 13F MARATHON PETE COM 56585A102 3,004 2 0.07 489 -15.57 0.0355
2025-11-03 2025-09-30 13F MARATHON PETE COM 56585A102 3,002 50 1.69 579 20.67 0.0452
2025-08-07 2025-06-30 13F MARATHON PETE COM 56585A102 2,952 203 7.38 480 27.06 0.0437
2025-05-01 2025-03-31 13F MARATHON PETE COM 56585A102 2,749 -261 -8.67 378 -14.71 0.0402
2025-02-06 2024-12-31 13F MARATHON PETE COM 56585A102 3,010 78 2.66 442 -1.78 0.0442
2024-10-25 2024-09-30 13F MARATHON PETE COM 56585A102 2,932 -143 -4.65 451 -13.46 0.0537
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 3,075 42 1.38 521 -14.89 0.0742
2024-05-06 2024-03-31 13F/A-1 MARATHON PETE COM 56585A102 3,033 77 2.60 611 39.50 0.0928
2024-05-02 2024-03-31 13F MARATHON PETE COM 56585A102 3,050 94 1,452 0.2219
2024-01-31 2023-12-31 13F MARATHON PETE COM 56585A102 2,956 265 9.85 439 7.62 0.0970
2023-11-08 2023-09-30 13F MARATHON PETE COM 56585A102 2,691 -195 -6.76 407 21.13 0.1393
2023-08-10 2023-06-30 13F MARATHON PETE COM 56585A102 2,886 -309 -9.67 337 -1.47 0.1228
2023-05-09 2023-03-31 13F MARATHON PETE COM 56585A102 3,195 3,195 342 0.1452
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.