Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionWedbush Securities Inc
Latest Disclosed Ownership7,336 shares
Latest Disclosed Value $ 1,791
Wedbush Securities Inc reports 4.10% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 21, 2026 - Wedbush Securities Inc filed a 13F-HR form disclosing ownership of 7,336 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,791 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 7,650 shares of Marathon Petroleum Corporation. This represents a change in shares of -4.10% 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)
2026-04-21 2026-03-31 13F MARATHON PETROLEUM COM 56585A102 7,336 -314 -4.10 2 0.00 0.0522
2026-02-12 2025-12-31 13F MARATHON PETROLEUM COM 56585A102 7,650 945 14.09 1 0.00 0.0363
2025-11-06 2025-09-30 13F MARATHON PETROLEUM COM 56585A102 6,705 -37 -0.55 1 0.00 0.0422
2025-08-06 2025-06-30 13F MARATHON PETROLEUM COM 56585A102 6,742 482 7.70 1 0.0391
2025-05-06 2025-03-31 13F MARATHON PETROLEUM COM 56585A102 6,260 -458 -6.82 1 0.0335
2025-02-13 2024-12-31 13F MARATHON PETROLEUM COM 56585A102 6,718 808 13.67 1 0.0334
2024-11-08 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 5,910 -1,001 -14.48 1 -100.00 0.0357
2024-08-07 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 6,911 -2,211 -24.24 1 0.00 0.0429
2024-05-15 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 9,122 606 7.12 2 0.00 0.0686
2024-02-12 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 8,516 -83 -0.97 1 0.00 0.0559
2023-11-14 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 8,599 -788 -8.39 1 0.00 0.0647
2023-08-14 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 9,387 802 9.34 1 0.00 0.0522
2023-05-09 2023-03-31 13F MARATHON PETROLEUM COM 56585A102 8,585 226 2.70 1 0.0579
2023-01-31 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 8,359 -318 -3.66 1 -100.00 0.0535
2022-10-18 2022-09-30 13F MARATHON PETROLEUM COM 56585A102 8,677 -345 -3.82 862 16.17 0.0484
2022-07-21 2022-06-30 13F MARATHON PETROLEUM COM 56585A102 9,022 782 9.49 742 5.25 0.0404
2022-04-19 2022-03-31 13F MARATHON PETROLEUM COM 56585A102 8,240 1,263 18.10 705 58.07 0.0323
2022-01-13 2021-12-31 13F MARATHON PETROLEUM COM 56585A102 6,977 -229 -3.18 446 0.22 0.0192
2021-10-08 2021-09-30 13F MARATHON PETROLEUM COM 56585A102 7,206 1 0.01 445 2.30 0.0211
2021-07-27 2021-06-30 13F MARATHON PETROLEUM COM 56585A102 7,205 1,132 18.64 435 33.85 0.0206
2021-04-26 2021-03-31 13F MARATHON PETROLEUM COM 56585A102 6,073 844 16.14 325 50.46 0.0180
2021-02-16 2020-12-31 13F MARATHON PETROLEUM COM 56585A102 5,229 5,229 216 0.0189
2020-04-16 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 0 -12,353 -100.00 0 -100.00
2020-01-16 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 12,353 -7,607 -38.11 744 -38.66 0.0661
2019-10-17 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 19,960 4,659 30.45 1,213 41.87 0.1187
2019-08-01 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 15,301 7,932 107.64 855 93.88 0.0860
2019-04-17 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 7,369 -3,969 -35.01 441 -34.08 0.0474
2019-01-31 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 11,338 6,397 129.47 669 69.37 0.0855
2018-11-13 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 4,941 106 2.19 395 16.52 0.0448
2018-08-03 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 4,835 -215 -4.26 339 -8.13 0.0420
2018-05-01 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 5,050 -570 -10.14 369 -0.54 0.0482
2018-02-09 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 5,620 -83 -1.46 371 15.94 0.0453
2017-10-31 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 5,703 128 2.30 320 9.59 0.0416
2017-08-02 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 5,575 -24 -0.43 292 3.18 0.0379
2017-05-05 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 5,599 503 9.87 283 10.12 0.0383
2017-01-25 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 5,096 5,096 257 0.0378
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.