Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionLowe Brockenbrough & Co Inc
Latest Disclosed Ownership8,933 shares
Latest Disclosed Value $ 2,181,260
Lowe Brockenbrough & Co Inc reports 1.84% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 7, 2026 - Lowe Brockenbrough & Co Inc filed a 13F-HR form disclosing ownership of 8,933 shares of Marathon Petroleum Corporation (MX:MPC) valued at $2,181,260 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 9,100 shares of Marathon Petroleum Corporation. This represents a change in shares of -1.84% 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)
2026-05-07 2026-03-31 13F MARATHON PETE COM 56585A102 8,933 -167 -1.84 2,181 47.46 0.1088
2026-02-11 2025-12-31 13F MARATHON PETE COM 56585A102 9,100 -318 -3.38 1,480 -18.51 0.0729
2025-11-05 2025-09-30 13F MARATHON PETE COM 56585A102 9,418 -50 -0.53 1,815 15.46 0.0934
2025-08-11 2025-06-30 13F MARATHON PETE COM 56585A102 9,468 -150 -1.56 1,573 12.21 0.0884
2025-05-13 2025-03-31 13F MARATHON PETE COM 56585A102 9,618 527 5.80 1,401 10.49 0.0922
2025-02-11 2024-12-31 13F MARATHON PETE COM 56585A102 9,091 -674 -6.90 1,268 -20.25 0.0813
2024-10-28 2024-09-30 13F MARATHON PETE COM 56585A102 9,765 -23 -0.23 1,591 -6.36 0.1016
2024-08-12 2024-06-30 13F MARATHON PETE COM 56585A102 9,788 -354 -3.49 1,698 -16.89 0.1130
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 10,142 -945 -8.52 2,044 24.27 0.1380
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 11,087 415 3.89 1,645 1.80 0.1274
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 10,672 -665 -5.87 1,615 22.26 0.1254
2023-08-10 2023-06-30 13F MARATHON PETE COM 56585A102 11,337 -43 -0.38 1,322 -13.89 0.0997
2023-05-12 2023-03-31 13F MARATHON PETE COM 56585A102 11,380 -171 -1.48 1,534 14.14 0.1243
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 11,551 121 1.06 1,344 18.41 0.1170
2022-11-01 2022-09-30 13F MARATHON PETE COM 56585A102 11,430 -50 -0.44 1,135 20.23 0.1093
2022-07-27 2022-06-30 13F MARATHON PETE COM 56585A102 11,480 -1,700 -12.90 944 -16.24 0.0826
2022-05-04 2022-03-31 13F MARATHON PETE COM 56585A102 13,180 -1,660 -11.19 1,127 18.63 0.0832
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 14,840 -26 -0.17 950 3.37 0.0694
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 14,866 -285 -1.88 919 0.44 0.0715
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 15,151 -50 -0.33 915 12.55 0.0824
2021-05-14 2021-03-31 13F MARATHON PETE COM 56585A102 15,201 0 0.00 813 29.25 0.0790
2021-02-04 2020-12-31 13F MARATHON PETE COM 56585A102 15,201 -11,685 -43.46 629 -20.28 0.0681
2020-10-26 2020-09-30 13F MARATHON PETE COM 56585A102 26,886 -611 -2.22 789 -23.25 0.0981
2020-08-13 2020-06-30 13F MARATHON PETROLEUM COM 56585A102 27,497 -1,629 -5.59 1,028 49.42 0.1382
2020-05-21 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 29,126 -574 -1.93 688 -61.54 0.1133
2020-01-31 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 29,700 -74 -0.25 1,789 -1.11 0.2218
2019-11-21 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 29,774 540 1.85 1,809 10.71 0.2428
2019-08-12 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 29,234 370 1.28 1,634 -5.44 0.2226
2019-05-21 2019-03-31 13F/A-1 MARATHON PETROLEUM COM 56585A102 28,864 1,326 4.82 1,728 6.34 0.2417
2019-05-21 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 28,864 1,728
2019-02-15 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 27,538 6,060 28.21 1,625 -5.41 0.2655
2018-11-15 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 21,478 0 0.00 1,718 14.00 0.2402
2018-08-10 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 21,478 -775 -3.48 1,507 -7.38 0.2214
2018-04-30 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 22,253 -730 -3.18 1,627 7.32 0.2407
2018-01-30 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 22,983 -60 -0.26 1,516 17.34 0.2175
2017-11-07 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 23,043 150 0.66 1,292 7.85 0.1982
2017-07-31 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 22,893 85 0.37 1,198 3.90 0.1882
2017-05-17 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 22,808 125 0.55 1,153 0.96 0.1840
2017-02-15 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 22,683 -220 -0.96 1,142 22.80 0.1911
2016-11-15 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 22,903 80 0.35 930 7.39 0.1604
2016-08-17 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 22,823 110 0.48 866 2.61 0.1507
2016-05-18 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 22,713 7,718 51.47 844 8.62 0.1452
2016-02-11 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 14,995 70 0.47 777 12.45 0.1325
2015-11-03 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 14,925 2,645 21.54 691 7.63 0.1209
2015-08-17 2015-06-30 13F MARATHON PETROLEUM COM 56585A102 12,280 5,993 95.32 642 -0.31 0.1034
2015-05-14 2015-03-31 13F MARATHON PETROLEUM COM 56585A102 6,287 -98 -1.53 644 11.81 0.1016
2015-02-17 2014-12-31 13F MARATHON PETROLEUM COM 56585A102 6,385 -245 -3.70 576 2.67 0.0916
2014-11-20 2014-09-30 13F MARATHON PETROLEUM COM 56585A102 6,630 730 12.37 561 21.69 0.0895
2014-08-15 2014-06-30 13F MARATHON PETROLEUM COM 56585A102 5,900 3,355 131.83 461 107.66 0.0735
2014-06-17 2014-03-31 13F MARATHON PETROLEUM COM 56585A102 2,545 -250 -8.94 222 -13.28 0.0370
2014-02-26 2013-12-31 13F MARATHON PETROLEUM COM 56585A102 2,795 2,795 -24.46 256 -2.66 0.0423
2013-11-15 2013-09-30 13F MARATHON PETROLEUM COM 56585A102 0 -3,700 -100.00 0 -100.00
2013-08-14 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 3,700 3,700 263 0.0488
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.