Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionBaker Tilly Financial, Llc
Latest Disclosed Ownership2,608 shares
Latest Disclosed Value $ 636,821
Baker Tilly Financial, Llc reports 0.69% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 10, 2026 - Baker Tilly Financial, Llc filed a 13F-HR form disclosing ownership of 2,608 shares of Marathon Petroleum Corporation (MX:MPC) valued at $636,821 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 8, 2026 disclosing 2,626 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.69% 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)
2026-04-10 2026-03-31 13F MARATHON PETE COM 56585A102 2,608 -18 -0.69 637 48.95 0.1549
2026-01-08 2025-12-31 13F MARATHON PETE COM 56585A102 2,626 20 0.77 427 -14.94 0.1052
2025-10-09 2025-09-30 13F MARATHON PETE COM 56585A102 2,606 380 17.07 502 36.04 0.1134
2025-07-10 2025-06-30 13F MARATHON PETE COM 56585A102 2,226 60 2.77 370 17.14 0.1321
2025-04-09 2025-03-31 13F MARATHON PETE COM 56585A102 2,166 278 14.72 316 19.77 0.1237
2025-01-10 2024-12-31 13F MARATHON PETE COM 56585A102 1,888 -331 -14.92 263 -27.15 0.1033
2024-10-24 2024-09-30 13F MARATHON PETE COM 56585A102 2,219 -56 -2.46 361 -8.38 0.1600
2024-07-18 2024-06-30 13F MARATHON PETE COM 56585A102 2,275 -2,904 -56.07 395 -62.22 0.1614
2024-05-09 2024-03-31 13F MARATHON PETE COM 56585A102 5,179 -1,144 -18.09 1,044 11.19 0.1887
2024-01-10 2023-12-31 13F MARATHON PETE COM 56585A102 6,323 -3 -0.05 938 -1.99 0.1540
2023-10-10 2023-09-30 13F MARATHON PETE COM 56585A102 6,326 -321 -4.83 957 23.48 0.1577
2023-07-20 2023-06-30 13F MARATHON PETE COM 56585A102 6,647 164 2.53 775 -11.33 0.0814
2023-04-12 2023-03-31 13F MARATHON PETE COM 56585A102 6,483 -2,304 -26.22 874 -14.48 0.0983
2023-01-26 2022-12-31 13F MARATHON PETE COM 56585A102 8,787 -383 -4.18 1,023 12.18 0.1259
2022-10-20 2022-09-30 13F MARATHON PETE COM 56585A102 9,170 235 2.63 911 23.95 0.1241
2022-07-28 2022-06-30 13F MARATHON PETE COM 56585A102 8,935 908 11.31 735 7.14 0.0964
2022-04-27 2022-03-31 13F MARATHON PETE COM 56585A102 8,027 438 5.77 686 41.15 0.0759
2022-02-08 2021-12-31 13F MARATHON PETE COM 56585A102 7,589 1,099 16.93 486 21.20 0.0522
2021-11-02 2021-09-30 13F MARATHON PETE COM 56585A102 6,490 1,426 28.16 401 31.05 0.0530
2021-07-30 2021-06-30 13F MARATHON PETE COM 56585A102 5,064 5,064 306 0.0493
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.