Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionInterchange Capital Partners, LLC
Latest Disclosed Ownership11,027 shares
Latest Disclosed Value $ 1,615,034
Interchange Capital Partners, LLC reports 6.94% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 23, 2026 - Interchange Capital Partners, LLC filed a 13F-HR form disclosing ownership of 11,027 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,615,034 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 11,849 shares of Marathon Petroleum Corporation. This represents a change in shares of -6.94% 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)
2026-04-23 2026-03-31 13F MARATHON PETE COM 56585A102 11,027 -822 -6.94 1,615 -16.19 0.5101
2026-01-30 2025-12-31 13F MARATHON PETE COM 56585A102 11,849 -99 -0.83 1,927 -16.18 0.3575
2025-11-12 2025-09-30 13F MARATHON PETE COM 56585A102 11,948 404 3.50 2,300 19.93 0.4508
2025-07-31 2025-06-30 13F/A-1 MARATHON PETE COM 56585A102 11,544 -474 -3.94 1,917 9.48 0.4429
2025-07-28 2025-06-30 13F MARATHON PETE COM 56585A102 1,046 -10,972 1,917 0.4240
2025-04-30 2025-03-31 13F MARATHON PETE COM 56585A102 12,018 616 5.40 1,751 9.85 0.4905
2025-02-11 2024-12-31 13F MARATHON PETE COM 56585A102 11,402 -758 -6.23 1,595 -19.54 0.5750
2024-10-28 2024-09-30 13F MARATHON PETE COM 56585A102 12,160 -550 -4.33 1,982 -10.12 0.6967
2024-07-31 2024-06-30 13F MARATHON PETE COM 56585A102 12,710 7,971 168.20 2,205 130.79 0.8040
2024-05-08 2024-03-31 13F MARATHON PETE COM 56585A102 4,739 83 1.78 956 37.41 0.6445
2024-01-09 2023-12-31 13F MARATHON PETE COM 56585A102 4,656 -1,290 -21.70 695 -22.69 0.5207
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 5,946 -285 -4.57 899 23.49 0.7147
2023-08-08 2023-06-30 13F MARATHON PETE COM 56585A102 6,231 -4,558 -42.25 728 -49.65 0.5559
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 10,789 1,661 18.20 1,447 36.16 0.7846
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 9,128 -449 -4.69 1,062 11.67 1.0834
2022-11-07 2022-09-30 13F MARATHON PETE CORP COM COM 56585A102 9,577 2,076 27.68 951 54.38 1.0433
2022-08-05 2022-06-30 13F MARATHON PETE CORP COM COM 56585A102 7,501 4,497 149.70 616 140.63 0.6928
2022-05-13 2022-03-31 13F MARATHON PETE CORP COM COM 56585A102 3,004 3,004 256 0.2630
2022-02-03 2021-12-31 13F MARATHON PETE CORP COM COM 56585A102 0 -4,257 -100.00 0 -100.00
2021-11-12 2021-09-30 13F MARATHON PETE CORP COM COM 56585A102 4,257 -45 -1.05 263 1.54 0.4397
2021-08-16 2021-06-30 13F MARATHON PETE CORP COM COM 56585A102 4,302 -658 -13.27 259 -2.26 0.4005
2021-05-05 2021-03-31 13F MARATHON PETE CORP COM COM 56585A102 4,960 341 7.38 265 38.74 0.1437
2021-02-16 2020-12-31 13F MARATHON PETROLEUM ORD COM 56585A102 4,619 4,619 191 0.1036
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.