Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionHgk Asset Management Inc
Latest Disclosed Ownership7,253 shares
Latest Disclosed Value $ 1,771,038
Hgk Asset Management Inc reports 76.87% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 27, 2026 - Hgk Asset Management Inc filed a 13F-HR form disclosing ownership of 7,253 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,771,038 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 27, 2026 disclosing 31,364 shares of Marathon Petroleum Corporation. This represents a change in shares of -76.87% 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)
2026-04-27 2026-03-31 13F Marathon Petroleum COM 56585A102 7,253 -24,111 -76.87 1,771 -65.27 0.2588
2026-01-27 2025-12-31 13F Marathon Petroleum COM 56585A102 31,364 -3,330 -9.60 5,101 -23.72 0.7557
2025-10-30 2025-09-30 13F Marathon Petroleum COM 56585A102 34,694 -4,458 -11.39 6,687 2.81 1.0824
2025-07-21 2025-06-30 13F Marathon Petroleum COM 56585A102 39,152 942 2.47 6,504 16.83 1.1128
2025-04-28 2025-03-31 13F Marathon Petroleum COM 56585A102 38,210 -671 -1.73 5,567 2.64 1.1318
2025-02-03 2024-12-31 13F Marathon Petroleum COM 56585A102 38,881 6,019 18.32 5,424 1.31 1.0001
2024-10-31 2024-09-30 13F Marathon Petroleum COM 56585A102 32,862 -830 -2.46 5,354 -8.40 0.9925
2024-08-06 2024-06-30 13F Marathon Petroleum COM 56585A102 33,692 764 2.32 5,845 -11.91 1.1291
2024-05-13 2024-03-31 13F Marathon Petroleum COM 56585A102 32,928 -712 -2.12 6,635 32.95 1.2954
2024-02-13 2023-12-31 13F Marathon Petroleum COM 56585A102 33,640 -3,224 -8.75 4,991 99,700.00 1.1591
2023-10-20 2023-09-30 13F Marathon Petroleum Common Stock 56585A102 36,864 -8,799 -19.27 6 0.00 1.8226
2023-08-02 2023-06-30 13F Marathon Petroleum Common Stock 56585A102 45,663 3,838 9.18 5 0.00 1.6932
2023-04-28 2023-03-31 13F Marathon Petroleum Common Stock 56585A102 41,825 1,050 2.58 6 25.00 1.7514
2023-02-14 2022-12-31 13F Marathon Petroleum Common Stock 56585A102 40,775 -7,785 -16.03 5 -99.92 1.6198
2022-10-18 2022-09-30 13F Marathon Petroleum Common Stock 56585A102 48,560 -3,299 -6.36 4,823 13.14 1.7953
2022-07-29 2022-06-30 13F Marathon Petroleum Common Stock 56585A102 51,859 -8,408 -13.95 4,263 -17.27 1.5538
2022-05-04 2022-03-31 13F Marathon Petroleum Common Stock 56585A102 60,267 -5,040 -7.72 5,153 23.31 1.6229
2022-02-01 2021-12-31 13F Marathon Petroleum Common Stock 56585A102 65,307 -3,128 -4.57 4,179 -1.21 1.2945
2021-10-28 2021-09-30 13F Marathon Petroleum Common Stock 56585A102 68,435 -2,410 -3.40 4,230 -1.17 1.3884
2021-07-30 2021-06-30 13F Marathon Petroleum Common Stock 56585A102 70,845 -3,909 -5.23 4,280 7.03 1.3627
2021-04-15 2021-03-31 13F Marathon Petroleum Common Stock 56585A102 74,754 -19,018 -20.28 3,999 3.12 1.3221
2021-01-08 2020-12-31 13F Marathon Petroleum Common Stock 56585A102 93,772 -2,647 -2.75 3,878 37.08 1.3821
2020-11-05 2020-09-30 13F Marathon Petroleum Common Stock 56585A102 96,419 -44,151 -31.41 2,829 -46.17 1.1358
2020-08-10 2020-06-30 13F Marathon Petroleum Common Stock 56585A102 140,570 -43,326 -23.56 5,255 20.97 1.6940
2020-04-28 2020-03-31 13F Marathon Petroleum Common Stock 56585A102 183,896 72,389 64.92 4,344 -35.34 1.6495
2020-01-27 2019-12-31 13F Marathon Petroleum Common Stock 56585A102 111,507 -21,978 -16.46 6,718 -17.15 1.7670
2019-11-13 2019-09-30 13F/A-1 Marathon Petroleum Common Stock 56585A102 133,485 17,211 14.80 8,109 24.81 2.2762
2019-10-24 2019-09-30 13F Marathon Petroleum Common Stock 56585A102 7,602 -108,672 608 172,510.1648
2019-07-23 2019-06-30 13F Marathon Petroleum Common Stock 56585A102 116,274 9,781 9.18 6,497 1.93 1.8881
2019-05-07 2019-03-31 13F Marathon Petroleum Common Stock 56585A102 106,493 106,493 6,374 1.9206
2019-01-31 2018-12-31 13F Marathon Petroleum Common Stock 56585A102 0 -7,704 -100.00 0 -100.00
2018-10-29 2018-09-30 13F Marathon Petroleum Common Stock 56585A102 7,704 7,704 -98.44 616 -98.06 0.1096
2014-01-29 2013-12-31 13F Marathon Petroleum COM 56585A102 0 -493,869 -100.00 0 -100.00
2013-10-31 2013-09-30 13F Marathon Petroleum COM 56585A102 493,869 -53,993 -9.86 31,766 -18.40 1.3166
2013-08-07 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 547,862 547,862 38,931 1.5392
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.