Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionBridgeway Capital Management Inc
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
Bridgeway Capital Management Inc closes position in MPC / Marathon Petroleum Corporation

On February 17, 2026 - Bridgeway Capital Management Inc filed a 13F-HR form disclosing ownership of 0 shares of Marathon Petroleum Corporation (US:MPC) valued at $0 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 15,940 shares of Marathon Petroleum Corporation. This represents a change in shares of -100.00% during the quarter. The current value of the position is $0 USD.

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)
2026-02-17 2025-12-31 13F MARATHON PETE COM 56585A102 0 -15,940 -100.00 0 -100.00
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 15,940 0 0.00 3,072 16.06 0.0655
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 15,940 -390 -2.39 2,648 11.27 0.0628
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 16,330 -5,570 -25.43 2,379 -22.13 0.0599
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 21,900 -15,400 -41.29 3,055 -49.72 0.0683
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 37,300 -2,900 -7.21 6,077 -12.86 0.1314
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 40,200 -43,400 -51.91 6,974 -58.60 0.1632
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 83,600 1,900 2.33 16,845 38.97 0.3442
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 81,700 6,500 8.64 12,121 6.51 0.2600
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 75,200 -38,050 -33.60 11,381 -13.81 0.2759
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 113,250 23,450 26.11 13,205 9.06 0.3160
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 89,800 0 0.00 12,108 15.85 0.3215
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 89,800 16,700 22.85 10,452 43.93 0.2705
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 73,100 -24,200 -24.87 7,261 -9.23 0.1944
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 97,300 1,100 1.14 7,999 -2.75 0.1828
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 96,200 96,200 8,225 0.1590
2021-08-16 2021-06-30 13F MARATHON PETE COM 56585A102 0 -456,938 -100.00 0 -100.00
2021-05-17 2021-03-31 13F MARATHON PETE COM 56585A102 456,938 -55,700 -10.87 24,442 15.28 0.4569
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 512,638 -141,100 -21.58 21,203 10.54 0.4481
2020-11-16 2020-09-30 13F MARATHON PETE COM 56585A102 653,738 -260,500 -28.49 19,181 -43.87 0.4399
2020-08-31 2020-06-30 13F/A-1 MARATHON PETE COM 56585A102 914,238 -26,700 -2.84 34,174 53.76 0.6910
2020-08-14 2020-06-30 13F MARATHON PETE COM 56585A102 894,338 -46,600 33,430 683,680.7671
2020-05-15 2020-03-31 13F MARATHON PETE COM 56585A102 940,938 270,550 40.36 22,225 -44.98 0.5089
2020-02-14 2019-12-31 13F MARATHON PETE COM 56585A102 670,388 -519,300 -43.65 40,391 -44.11 0.5432
2019-11-14 2019-09-30 13F MARATHON PETE COM 56585A102 1,189,688 -58,200 -4.66 72,274 3.65 0.9991
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 1,247,888 1,100 0.09 69,732 -6.55 0.8915
2019-05-15 2019-03-31 13F MARATHON PETE COM 56585A102 1,246,788 -45,800 -3.54 74,620 -2.17 0.9293
2019-02-14 2018-12-31 13F MARATHON PETE COM 56585A102 1,292,588 -6,450 -0.50 76,276 -26.58 1.0136
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 1,299,038 -1,300 -0.10 103,884 13.87 1.0113
2018-08-14 2018-06-30 13F MARATHON PETE COM 56585A102 1,300,338 1,900 0.15 91,232 -3.89 0.9259
2018-05-15 2018-03-31 13F MARATHON PETE COM 56585A102 1,298,438 221,450 20.56 94,929 33.59 1.0197
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 1,076,988 168,388 18.53 71,060 39.46 0.7652
2017-11-14 2017-09-30 13F MARATHON PETE COM 56585A102 908,600 -46,800 -4.90 50,954 1.92 0.5815
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 955,400 955,400 49,996 0.6021
2017-05-15 2017-03-31 13F MARATHON PETE COM 56585A102 0 -315,670 -100.00 0 -100.00
2017-02-14 2016-12-31 13F MARATHON PETE COM 56585A102 315,670 -13,600 -4.13 15,894 18.92 0.2074
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 329,270 0 0.00 13,365 6.93 0.1991
2016-08-15 2016-06-30 13F MARATHON PETE COM 56585A102 329,270 -91,200 -21.69 12,499 -20.05 0.1938
2016-05-16 2016-03-31 13F MARATHON PETE COM 56585A102 420,470 0 0.00 15,633 -28.28 0.2630
2016-02-16 2015-12-31 13F MARATHON PETE COM 56585A102 420,470 -65,300 -13.44 21,797 -3.15 0.4053
2015-11-16 2015-09-30 13F MARATHON PETE COM 56585A102 485,770 -11,600 -2.33 22,506 -13.50 0.4707
2015-10-14 2015-06-30 13F/A-1 MARATHON PETE COM 56585A102 497,370 260,200 109.71 26,017 7.14 0.5127
2015-08-14 2015-06-30 13F MARATHON PETE COM 56585A102 497,370 26,017
2015-05-15 2015-03-31 13F MARATHON PETE COM 56585A102 237,170 38,500 19.38 24,284 35.42 0.5016
2015-03-10 2014-12-31 13F/A-1 MARATHON PETE COM 56585A102 198,670 2,400 1.22 17,932 7.91 0.4082
2015-02-17 2014-12-31 13F MARATHON PETE COM 56585A102 198,670 17,932
2014-11-14 2014-09-30 13F MARATHON PETE COM 56585A102 196,270 28,700 17.13 16,618 27.03 0.4191
2014-08-14 2014-06-30 13F MARATHON PETE COM 56585A102 167,570 26,200 18.53 13,082 6.31 0.3431
2014-05-15 2014-03-31 13F MARATHON PETE COM 56585A102 141,370 1,000 0.71 12,305 -4.43 0.3520
2014-02-14 2013-12-31 13F MARATHON PETROLE COM 56585A102 140,370 -7,100 -4.81 12,876 35.75 0.3918
2013-11-14 2013-09-30 13F MARATHON PETE COM 56585A102 147,470 48,170 48.51 9,485 34.42 0.3236
2013-08-14 2013-06-30 13F MARATHON PETE COM 56585A102 99,300 99,300 7,056 0.2819
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.