Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionCommonwealth Equity Services, Llc
Latest Disclosed Ownership134,195 shares
Latest Disclosed Value $ 21,824,199
Commonwealth Equity Services, Llc reports 5.90% decrease in ownership of MPC / Marathon Petroleum Corporation

On February 12, 2026 - Commonwealth Equity Services, Llc filed a 13F-HR form disclosing ownership of 134,195 shares of Marathon Petroleum Corporation (MX:MPC) valued at $21,824,199 USD as of December 31, 2025. The entity filed a previous 13F-HR on October 22, 2025 disclosing 142,604 shares of Marathon Petroleum Corporation. This represents a change in shares of -5.90% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-02-12 2025-12-31 13F MARATHON PETE COM 56585A102 134,195 -8,409 -5.90 21,824 80,729.63 0.0291
2025-10-22 2025-09-30 13F MARATHON PETE COM 56585A102 142,604 -11,672 -7.57 27 8.00 0.0356
2025-08-06 2025-06-30 13F MARATHON PETE COM 56585A102 154,276 -12,562 -7.53 26 4.17 0.0339
2025-05-09 2025-03-31 13F MARATHON PETE COM 56585A102 166,838 9,707 6.18 24 14.29 0.0344
2025-02-10 2024-12-31 13F MARATHON PETE COM 56585A102 157,131 -4,363 -2.70 22 -19.23 0.0320
2024-10-18 2024-09-30 13F MARATHON PETE COM 56585A102 161,494 3,104 1.96 26 -3.70 0.0399
2024-07-31 2024-06-30 13F MARATHON PETE COM 56585A102 158,390 3,247 2.09 27 -12.90 0.0435
2024-04-29 2024-03-31 13F MARATHON PETE COM 56585A102 155,143 19,532 14.40 31 55.00 0.0519
2024-02-06 2023-12-31 13F MARATHON PETE COM 56585A102 135,611 6,002 4.63 20 5.26 0.0369
2023-10-23 2023-09-30 13F MARATHON PETE COM 56585A102 129,609 5,802 4.69 20 35.71 0.0406
2023-08-10 2023-06-30 13F MARATHON PETE COM 56585A102 123,807 -1,264 -1.01 14 -12.50 0.0294
2023-05-11 2023-03-31 13F MARATHON PETE COM 56585A102 125,071 12,075 10.69 17 23.08 0.0354
2023-02-07 2022-12-31 13F MARATHON PETE COM 56585A102 112,996 1,799 1.62 13 -99.88 0.0316
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 111,197 -16,228 -12.74 11,045 5.44 0.0285
2022-07-19 2022-06-30 13F MARATHON PETE COM 56585A102 127,425 -30,611 -19.37 10,475 -22.48 0.0273
2022-05-04 2022-03-31 13F MARATHON PETE COM 56585A102 158,036 -6,087 -3.71 13,512 28.66 0.0309
2022-01-31 2021-12-31 13F MARATHON PETE COM 56585A102 164,123 -26,155 -13.75 10,502 -10.70 0.0237
2021-10-29 2021-09-30 13F MARATHON PETE COM 56585A102 190,278 -8,025 -4.05 11,761 -1.84 0.0295
2021-08-11 2021-06-30 13F MARATHON PETE COM 56585A102 198,303 -5,289 -2.60 11,981 10.02 0.0304
2021-05-04 2021-03-31 13F MARATHON PETE COM 56585A102 203,592 25,660 14.42 10,890 47.98 0.0308
2021-02-11 2020-12-31 13F MARATHON PETE COM 56585A102 177,932 -22,345 -11.16 7,359 25.24 0.0221
2020-11-05 2020-09-30 13F MARATHON PETE COM 56585A102 200,277 26,164 15.03 5,876 -9.71 0.0201
2020-08-12 2020-06-30 13F MARATHON PETE COM 56585A102 174,113 48,178 38.26 6,508 118.83 0.0246
2020-05-11 2020-03-31 13F MARATHON PETE COM 56585A102 125,935 -26,617 -17.45 2,974 -67.64 0.0139
2020-02-05 2019-12-31 13F MARATHON PETE COM 56585A102 152,552 40,404 36.03 9,191 34.90 0.0350
2019-10-30 2019-09-30 13F MARATHON PETE COM 56585A102 112,148 -24,359 -17.84 6,813 -10.68 0.0291
2019-07-19 2019-06-30 13F MARATHON PETE COM 56585A102 136,507 22,542 19.78 7,628 11.85 0.0336
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 113,965 6,575 6.12 6,820 7.62 0.0315
2019-02-11 2018-12-31 13F MARATHON PETE COM 56585A102 107,390 6,553 6.50 6,337 -21.41 0.0337
2018-11-06 2018-09-30 13F MARATHON PETE COM 56585A102 100,837 14,130 16.30 8,063 32.55 0.0386
2018-07-31 2018-06-30 13F MARATHON PETE COM 56585A102 86,707 22,223 34.46 6,083 29.04 0.0318
2018-05-14 2018-03-31 13F MARATHON PETE COM 56585A102 64,484 -2,233 -3.35 4,714 7.09 0.0256
2018-02-12 2017-12-31 13F MARATHON PETE COM 56585A102 66,717 66,717 4,402 0.0241
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.