Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionHighPoint Advisor Group LLC
Latest Disclosed Ownership905 shares
Latest Disclosed Value $ 220,982
HighPoint Advisor Group LLC reports 94.72% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 14, 2026 - HighPoint Advisor Group LLC filed a 13F-HR form disclosing ownership of 905 shares of Marathon Petroleum Corporation (US:MPC) valued at $220,983 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 17,153 shares of Marathon Petroleum Corporation. This represents a change in shares of -94.72% during the quarter. The current value of the position is $241,825 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.

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)
2026-05-14 2026-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 905 -16,248 -94.72 221 -92.11 0.0093
2026-02-04 2025-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 17,153 1,191 7.46 2,790 -9.33 0.1294
2025-11-05 2025-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 15,962 275 1.75 3,077 18.08 0.1466
2025-08-07 2025-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 15,687 100 0.64 2,606 20.88 0.1385
2025-05-05 2025-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 15,587 321 2.10 2,156 -8.99 0.1255
2025-02-12 2024-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 15,266 -1,140 -6.95 2,369 -11.38 0.1287
2024-11-04 2024-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 16,406 3,658 28.69 2,673 133,500.00 0.1558
2024-08-08 2024-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 12,748 257 2.06 2 0.00 0.1357
2024-05-14 2024-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 12,491 -216 -1.70 2 -99.92 0.1569
2024-03-26 2023-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 12,707 -2,637 -17.19 2,539 108.63 0.1818
2022-08-15 2022-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 15,344 5,162 50.70 1,217 93.48 0.1331
2021-11-15 2021-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 10,182 -1,163 -10.25 629 -8.18 0.0616
2021-07-29 2021-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 11,345 502 4.63 685 19.55 0.0690
2021-04-12 2021-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 10,843 414 3.97 573 12.35 0.0663
2021-02-10 2020-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 10,429 1,440 16.02 510 78.32 0.0621
2020-11-06 2020-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 8,989 397 4.62 286 -6.84 0.0517
2020-08-13 2020-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 8,592 30 0.35 307 39.55 0.0656
2020-05-01 2020-03-31 13F/A-2 MARATHON PETROLEUM Common Stock 56585A102 8,562 -2,584 -23.18 220 -64.86 0.0524
2020-04-27 2020-03-31 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 220 -8,342 9 0.1350
2020-04-27 2020-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 11,146 0 626 128,532.8570
2020-02-13 2019-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 11,146 -1,396 -11.13 626 -24.58 0.1290
2019-11-12 2019-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 12,542 -240 -1.88 830 17.73 0.1834
2019-08-15 2019-06-30 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 12,782 1,085 9.28 705 1.44 0.1651
2019-08-15 2019-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 11,697 0 695
2019-05-08 2019-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 11,697 1,754 17.64 695 7.59 0.1702
2019-02-20 2018-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 9,943 -9,937 -49.98 646 -56.17 0.1711
2018-10-23 2018-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 19,880 489 2.52 1,474 -0.87 0.4036
2018-08-20 2018-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 19,391 19,391 1,487 0.4014
2018-06-11 2018-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 0 -5,852 -100.00 0 -100.00
2018-02-15 2017-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 5,852 1,982 51.21 387 60.58 0.1109
2017-11-06 2017-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 3,870 179 4.85 241 16.99 0.0747
2017-08-15 2017-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 3,691 0 0.00 206 0.00 0.0663
2017-08-07 2017-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 3,691 3,691 206 0.0663
2016-04-26 2016-03-31 13F MARATHON PETE COM 56585A102 0 -9,746 -100.00 0 -100.00
2016-01-26 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 9,746 -9,550 -49.49 417 -53.36 0.2743
2015-10-29 2015-09-30 13F MARATHON PETE COM 56585A102 19,296 723 3.89 894 -8.02 0.9912
2015-07-09 2015-06-30 13F MARATHON PETE COM 56585A102 18,573 18,573 972 1.5012
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.