Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionHarrell Investment Partners, Llc
Latest Disclosed Ownership30,130 shares
Latest Disclosed Value $ 7,357,133
Harrell Investment Partners, Llc reports 8.25% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 22, 2026 - Harrell Investment Partners, Llc filed a 13F-HR form disclosing ownership of 30,130 shares of Marathon Petroleum Corporation (MX:MPC) valued at $7,357,133 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 15, 2026 disclosing 32,840 shares of Marathon Petroleum Corporation. This represents a change in shares of -8.25% 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)
2026-04-22 2026-03-31 13F MARATHON PETE COM 56585A102 30,130 -2,710 -8.25 7,357 37.77 1.7551
2026-01-15 2025-12-31 13F MARATHON PETE COM 56585A102 32,840 -454 -1.36 5,341 -16.78 1.2595
2025-10-23 2025-09-30 13F MARATHON PETE COM 56585A102 33,294 -1,728 -4.93 6,417 10.31 1.5157
2025-07-15 2025-06-30 13F MARATHON PETE COM 56585A102 35,022 2,814 8.74 5,817 23.98 1.4743
2025-04-21 2025-03-31 13F MARATHON PETE COM 56585A102 32,208 1,359 4.41 4,692 9.04 1.3917
2025-01-21 2024-12-31 13F MARATHON PETE COM 56585A102 30,849 -14,446 -31.89 4,303 -41.68 1.2025
2024-10-11 2024-09-30 13F MARATHON PETE COM 56585A102 45,295 -648 -1.41 7,379 -7.43 2.0880
2024-07-18 2024-06-30 13F MARATHON PETE COM 56585A102 45,943 -2,766 -5.68 7,970 -18.79 2.3171
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 48,709 -2,727 -5.30 9,815 28.61 2.9089
2024-01-22 2023-12-31 13F MARATHON PETE COM 56585A102 51,436 1,881 3.80 7,631 2.65 2.3735
2023-10-30 2023-09-30 13F MARATHON PETE COM 56585A102 49,555 2,565 5.46 7,434 35.68 2.5328
2023-08-08 2023-06-30 13F MARATHON PETE COM 56585A102 46,990 975 2.12 5,479 -11.34 1.8581
2023-05-04 2023-03-31 13F MARATHON PETE COM 56585A102 46,015 2,584 5.95 6,181 22.28 2.1990
2023-02-13 2022-12-31 13F MARATHON PETE COM 56585A102 43,431 3,856 9.74 5,055 28.57 1.9869
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 39,575 2,343 6.29 3,931 28.42 1.6427
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 37,232 1,253 3.48 3,061 -0.49 1.2498
2022-05-16 2022-03-31 13F Marathon Petroleum COM 56585A102 35,979 -275 -0.76 3,076 32.59 1.0883
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 36,254 774 2.18 2,320 5.79 0.7130
2021-11-12 2021-09-30 13F MARATHON PETE COM 56585A102 35,480 -12,914 -26.69 2,193 -25.00 0.7057
2021-08-16 2021-06-30 13F MARATHON PETE COM 56585A102 48,394 -1,545 -3.09 2,924 9.47 0.9485
2021-05-17 2021-03-31 13F MARATHON PETE COM 56585A102 49,939 6,101 13.92 2,671 47.32 0.9442
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 43,838 -16,616 -27.49 1,813 2.26 0.6975
2020-11-13 2020-09-30 13F MARATHON PETE COM 56585A102 60,454 -5,634 -8.52 1,773 -28.25 0.7726
2020-08-14 2020-06-30 13F MARATHON PETE COM 56585A102 66,088 7,588 12.97 2,471 78.80 1.2577
2020-05-14 2020-03-31 13F MARATHON PETE COM 56585A102 58,500 9,726 19.94 1,382 -52.98 0.7520
2020-02-13 2019-12-31 13F MARATHON PETE COM 56585A102 48,774 48,774 2,939 1.3393
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.