Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionFisher Asset Management, LLC
Latest Disclosed Ownership18,369 shares
Latest Disclosed Value $ 4,485,524
Fisher Asset Management, LLC reports 4.36% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 5, 2026 - Fisher Asset Management, LLC filed a 13F-HR form disclosing ownership of 18,369 shares of Marathon Petroleum Corporation (MX:MPC) valued at $4,485,524 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 19,207 shares of Marathon Petroleum Corporation. This represents a change in shares of -4.36% 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)
2026-05-05 2026-03-31 13F MARATHON PETE COM 56585A102 18,369 -838 -4.36 4,486 43.61 0.0015
2026-02-09 2025-12-31 13F MARATHON PETE COM 56585A102 19,207 685 3.70 3,124 -12.50 0.0011
2025-11-12 2025-09-30 13F MARATHON PETE COM 56585A102 18,522 -258 -1.37 3,570 14.43 0.0013
2025-08-13 2025-06-30 13F MARATHON PETE COM 56585A102 18,780 658 3.63 3,120 18.14 0.0012
2025-05-14 2025-03-31 13F MARATHON PETE COM 56585A102 18,122 380 2.14 2,640 6.67 0.0011
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 17,742 1,877 11.83 2,475 -4.22 0.0010
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 15,865 4,868 44.27 2,585 35.50 0.0011
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 10,997 2,443 28.56 1,908 10.68 0.0008
2024-05-09 2024-03-31 13F MARATHON PETE COM 56585A102 8,554 1,103 14.80 1,724 55.93 0.0008
2024-03-05 2023-12-31 13F/A-1 MARATHON PETE COM 56585A102 7,451 1,386 22.85 1,105 20.37 0.0006
2024-02-06 2023-12-31 13F MARATHON PETE COM 56585A102 7,469 1,404 1,108 0.0005
2023-11-13 2023-09-30 13F MARATHON PETE COM 56585A102 6,065 -2,195 -26.57 918 -4.67 0.0005
2023-12-12 2023-06-30 13F/A-1 MARATHON PETE COM 56585A102 8,260 3,511 73.93 963 50.47 0.0005
2023-08-08 2023-06-30 13F MARATHON PETE COM 56585A102 8,260 3,511 1 0.0005
2023-12-12 2023-03-31 13F/A-1 MARATHON PETE COM 56585A102 4,749 -721 -13.18 640 0.0004
2023-05-01 2023-03-31 13F MARATHON PETE COM 56585A102 4,749 -721 1 0.0004
2023-02-03 2022-12-31 13F MARATHON PETE COM 56585A102 5,470 468 9.36 1 -100.00 0.0004
2022-11-08 2022-09-30 13F MARATHON PETE COM 56585A102 5,002 -2,353 -31.99 497 -17.85 0.0004
2022-08-09 2022-06-30 13F MARATHON PETE COM 56585A102 7,355 412 5.93 605 1.85 0.0004
2022-05-05 2022-03-31 13F MARATHON PETE COM 56585A102 6,943 -2,266 -24.61 594 0.85 0.0004
2022-02-02 2021-12-31 13F MARATHON PETE COM 56585A102 9,209 1,730 23.13 589 27.49 0.0003
2021-10-26 2021-09-30 13F MARATHON PETE COM 56585A102 7,479 -1,012 -11.92 462 -9.94 0.0003
2021-07-27 2021-06-30 13F MARATHON PETE COM 56585A102 8,491 656 8.37 513 22.43 0.0003
2021-04-27 2021-03-31 13F MARATHON PETE COM 56585A102 7,835 -2,912 -27.10 419 -5.84 0.0003
2021-01-29 2020-12-31 13F MARATHON PETE COM 56585A102 10,747 518 5.06 445 48.33 0.0003
2020-11-12 2020-09-30 13F/A-1 MARATHON PETE COM 56585A102 10,229 2,523 32.74 300 4.17 0.0003
2020-11-10 2020-09-30 13F MARATHON PETE COM 56585A102 10,229 2,523 300 254.7517
2020-08-07 2020-06-30 13F MARATHON PETE COM 56585A102 7,706 -2,677 -25.78 288 17.55 0.0003
2020-04-28 2020-03-31 13F MARATHON PETE COM 56585A102 10,383 -3,229 -23.72 245 -70.12 0.0003
2020-02-12 2019-12-31 13F MARATHON PETE COM 56585A102 13,612 4,433 48.30 820 46.95 0.0008
2019-10-29 2019-09-30 13F MARATHON PETE COM 56585A102 9,179 704 8.31 558 17.72 0.0006
2019-07-30 2019-06-30 13F MARATHON PETE COM 56585A102 8,475 -781 -8.44 474 -14.44 0.0005
2019-04-22 2019-03-31 13F/A-1 MARATHON PETE COM 56585A102 9,256 150 1.65 554 3.17 0.0006
2019-04-22 2019-03-31 13F MARATHON PETE COM 56585A102 9,106 0 537
2019-01-25 2018-12-31 13F MARATHON PETE COM 56585A102 9,106 -1,164 -11.33 537 -34.59 0.0007
2018-10-23 2018-09-30 13F MARATHON PETE COM 56585A102 10,270 -129 -1.24 821 12.47 0.0010
2018-07-09 2018-06-30 13F MARATHON PETE COM 56585A102 10,399 77 0.75 730 -3.31 0.0009
2018-05-10 2018-03-31 13F/A-2 MARATHON PETE COM 56585A102 10,322 900 9.55 755 21.38 0.0010
2018-04-20 2018-03-31 13F/A-1 MARATHON PETE COM 56585A102 27,142 16,820 1,984 0.0024
2018-04-19 2018-03-31 13F MARATHON PETE COM 56585A102 27,142 17,720 1,984
2018-01-24 2017-12-31 13F MARATHON PETE COM 56585A102 9,422 -3,485 -27.00 622 -14.09 0.0008
2017-10-17 2017-09-30 13F MARATHON PETE COM 56585A102 12,907 4,932 61.84 724 73.62 0.0010
2017-07-12 2017-06-30 13F MARATHON PETE COM 56585A102 7,975 339 4.44 417 8.03 0.0006
2017-04-24 2017-03-31 13F MARATHON PETE COM 56585A102 7,636 -864 -10.16 386 -9.81 0.0006
2017-01-10 2016-12-31 13F MARATHON PETE COM 56585A102 8,500 -206 -2.37 428 21.25 0.0007
2016-10-11 2016-09-30 13F MARATHON PETE COM 56585A102 8,706 470 5.71 353 17.67 0.0006
2016-07-12 2016-06-30 13F MARATHON PETE COM 56585A102 8,236 279 3.51 300 -0.66 0.0006
2016-04-18 2016-03-31 13F MARATHON PETE COM 56585A102 7,957 -201 -2.46 302 -28.61 0.0006
2016-01-14 2015-12-31 13F MARATHON PETE COM 56585A102 8,158 2,092 34.49 423 50.53 0.0008
2015-10-20 2015-09-30 13F MARATHON PETE COM 56585A102 6,066 1,400 30.00 281 15.16 0.0006
2015-07-17 2015-06-30 13F MARATHON PETE COM 56585A102 4,666 2,658 132.37 244 18.45 0.0005
2015-04-30 2015-03-31 13F MARATHON PETE COM 56585A102 2,008 2,008 0.00 206 0.0004
2015-01-29 2014-12-31 13F MARATHON PETE COM 56585A102 0 -2,948 -100.00 0 -100.00
2014-10-20 2014-09-30 13F MARATHON PETE COM 56585A102 2,948 641 27.79 250 24.38 0.0005
2014-04-22 2014-03-31 13F MARATHON PETE COM 56585A102 2,307 -1,780 -43.55 201 -46.40 0.0005
2014-01-16 2013-12-31 13F/A-1 MARATHON PETE COM 56585A102 4,087 906 28.48 375 82.93 0.0008
2014-01-14 2013-12-31 13F MARATHON PETE COM 56585A102 4,087 375
2013-10-18 2013-09-30 13F MARATHON PETE COM 56585A102 3,181 -435 -12.03 205 -20.23 0.0005
2013-07-16 2013-06-30 13F MARATHON PETE COM 56585A102 3,616 3,616 257 0.0007
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.