Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionSymmetry Partners, LLC
Latest Disclosed Ownership1,410 shares
Latest Disclosed Value $ 344,228
Symmetry Partners, LLC reports 0.07% increase in ownership of MPC / Marathon Petroleum Corporation

On April 27, 2026 - Symmetry Partners, LLC filed a 13F-HR form disclosing ownership of 1,410 shares of Marathon Petroleum Corporation (MX:MPC) valued at $344,228 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 1,409 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.07% 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)
2026-04-27 2026-03-31 13F MARATHON PETE COM 56585A102 1,410 1 0.07 344 50.22 0.0197
2026-01-27 2025-12-31 13F MARATHON PETE COM 56585A102 1,409 0 0.00 229 -15.50 0.0136
2025-10-15 2025-09-30 13F MARATHON PETE COM 56585A102 1,409 -1,629 -53.62 272 -46.23 0.0296
2025-07-17 2025-06-30 13F MARATHON PETE COM 56585A102 3,038 -542 -15.14 505 -3.26 0.0621
2025-04-23 2025-03-31 13F MARATHON PETE COM 56585A102 3,580 474 15.26 522 20.32 0.0725
2025-02-11 2024-12-31 13F MARATHON PETE COM 56585A102 3,106 3,106 433 0.0616
2024-10-29 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 0 -8,217 -100.00 0 -100.00
2024-07-11 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 8,217 -1,312 -13.77 1 0.00 0.0733
2024-04-02 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 9,529 0 0.00 2 0.00 0.1503
2024-01-02 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 9,529 -3,448 -26.57 1 0.00 0.0756
2023-10-10 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 12,977 -314 -2.36 2 0.00 0.1065
2023-07-05 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 13,291 -14,391 -51.99 2 -66.67 0.0821
2023-04-03 2023-03-31 13F MARATHON PETROLEUM COM 56585A102 27,682 12,682 84.55 4 200.00 0.2058
2023-01-06 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 15,000 2,493 19.93 2 -99.92 0.1033
2022-10-03 2022-09-30 13F MARATHON PETROLEUM COM 56585A102 12,507 382 3.15 1,242 24.57 0.0837
2022-07-11 2022-06-30 13F MARATHON PETROLEUM COM 56585A102 12,125 0 0.00 997 -3.86 0.0671
2022-04-04 2022-03-31 13F MARATHON PETROLEUM COM 56585A102 12,125 0 0.00 1,037 33.63 0.0652
2022-01-11 2021-12-31 13F MARATHON PETROLEUM COM 56585A102 12,125 2,906 31.52 776 33.10 0.0494
2021-10-18 2021-09-30 13F MARATHON PETROLEUM COM 56585A102 9,219 0 0.00 583 4.67 0.0384
2021-07-07 2021-06-30 13F MARATHON PETROLEUM COM 56585A102 9,219 0 0.00 557 12.98 0.0370
2021-05-03 2021-03-31 13F MARATHON PETROLEUM COM 56585A102 9,219 -3,365 -26.74 493 -5.19 0.0354
2021-02-18 2020-12-31 13F Marathon Petroleum COM 56585A102 12,584 -18 -0.14 520 40.54 0.0404
2020-11-03 2020-09-30 13F Marathon Petroleum COM 56585A102 12,602 12,602 370 0.0315
2019-08-07 2019-06-30 13F MARATHON PETE CORP USD COM 56585A102 0 -4,379 -100.00 0 -100.00
2019-05-13 2019-03-31 13F MARATHON PETE CORP USD COM 56585A102 4,379 -3,766 -46.24 262 -45.53 0.0447
2019-05-22 2018-12-31 13F/A-1 MARATHON PETE CORP USD COM 56585A102 8,145 8,145 481 0.1225
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.