Marathon Petroleum Corporation
DE ˙ XTRA ˙ US56585A1025
227,40 € ↑8,30 (3,79%)
2026-06-03
DEL PRIS
SecurityDE:MPN / Marathon Petroleum Corporation
InstitutionD.a. Davidson & Co.
Latest Disclosed Ownership36,041 shares
Latest Disclosed Value $ 8,800,650
D.a. Davidson & Co. reports 12.32% increase in ownership of MPN / Marathon Petroleum Corporation

On May 5, 2026 - D.a. Davidson & Co. filed a 13F-HR form disclosing ownership of 36,041 shares of Marathon Petroleum Corporation (DE:MPN) valued at $7,698,358 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 29, 2026 disclosing 32,089 shares of Marathon Petroleum Corporation. This represents a change in shares of 12.32% during the quarter. The current value of the position is $8,195,723 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)
2026-05-05 2026-03-31 13F MARATHON PETE COM 56585A102 36,041 3,952 12.32 8,801 68.65 0.0534
2026-01-29 2025-12-31 13F MARATHON PETE COM 56585A102 32,089 -6,714 -17.30 5,219 -30.22 0.0320
2025-10-22 2025-09-30 13F MARATHON PETE COM 56585A102 38,803 -1,550 -3.84 7,479 11.56 0.0479
2025-07-30 2025-06-30 13F MARATHON PETE COM 56585A102 40,353 13,333 49.34 6,703 70.30 0.0472
2025-04-28 2025-03-31 13F MARATHON PETE COM 56585A102 27,020 -780 -2.81 3,937 1.50 0.0316
2025-01-31 2024-12-31 13F MARATHON PETE COM 56585A102 27,800 2,740 10.93 3,878 -5.00 0.0316
2024-11-13 2024-09-30 13F MARATHON PETE COM 56585A102 25,060 -2,155 -7.92 4,083 -13.54 0.0337
2024-08-01 2024-06-30 13F MARATHON PETE COM 56585A102 27,215 66 0.24 4,721 -13.69 0.0419
2024-05-13 2024-03-31 13F MARATHON PETE COM 56585A102 27,149 -221 -0.81 5,471 34.73 0.0493
2024-02-09 2023-12-31 13F MARATHON PETE COM 56585A102 27,370 589 2.20 4,061 0.17 0.0398
2023-11-08 2023-09-30 13F MARATHON PETE COM 56585A102 26,781 1,880 7.55 4,053 39.61 0.0440
2023-08-11 2023-06-30 13F MARATHON PETE COM 56585A102 24,901 -1,458 -5.53 2,903 -18.29 0.0307
2023-04-25 2023-03-31 13F MARATHON PETE COM 56585A102 26,359 2,768 11.73 3,554 29.44 0.0400
2023-02-03 2022-12-31 13F MARATHON PETE COM 56585A102 23,591 -1,856 -7.29 2,746 8.58 0.0324
2022-11-07 2022-09-30 13F MARATHON PETE COM 56585A102 25,447 4,909 23.90 2,528 49.76 0.0331
2022-07-28 2022-06-30 13F MARATHON PETE COM 56585A102 20,538 5,909 40.39 1,688 34.93 0.0212
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 14,629 916 6.68 1,251 42.65 0.0136
2022-01-31 2021-12-31 13F MARATHON PETE COM 56585A102 13,713 95 0.70 877 4.16 0.0093
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 13,618 128 0.95 842 3.31 0.0098
2021-08-10 2021-06-30 13F MARATHON PETE COM 56585A102 13,490 1,200 9.76 815 24.05 0.0096
2021-05-07 2021-03-31 13F MARATHON PETE COM 56585A102 12,290 -700 -5.39 657 22.35 0.0084
2021-02-10 2020-12-31 13F MARATHON PETE COM 56585A102 12,990 -840 -6.07 537 32.27 0.0082
2020-11-02 2020-09-30 13F MARATHON PETE COM 56585A102 13,830 -1,920 -12.19 406 -31.07 0.0071
2020-08-10 2020-06-30 13F MARATHON PETE COM 56585A102 15,750 -4,025 -20.35 589 26.12 0.0110
2020-05-05 2020-03-31 13F MARATHON PETE COM 56585A102 19,775 -1,429 -6.74 467 -63.46 0.0091
2020-02-14 2019-12-31 13F MARATHON PETE COM 56585A102 21,204 -72 -0.34 1,278 -1.16 0.0207
2019-11-05 2019-09-30 13F MARATHON PETE COM 56585A102 21,276 -293 -1.36 1,293 7.30 0.0232
2019-08-13 2019-06-30 13F MARATHON PETE COM 56585A102 21,569 -866 -3.86 1,205 -10.21 0.0224
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 22,435 3,552 18.81 1,342 20.47 0.0231
2019-01-29 2018-12-31 13F MARATHON PETE COM 56585A102 18,883 1,519 8.75 1,114 -19.80 0.0217
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 17,364 424 2.50 1,389 16.82 0.0247
2018-08-02 2018-06-30 13F MARATHON PETE COM 56585A102 16,940 318 1.91 1,189 -2.14 0.0233
2018-05-04 2018-03-31 13F MARATHON PETE COM 56585A102 16,622 688 4.32 1,215 15.60 0.0251
2018-02-08 2017-12-31 13F MARATHON PETE COM 56585A102 15,934 404 2.60 1,051 20.80 0.0220
2017-11-08 2017-09-30 13F MARATHON PETE COM 56585A102 15,530 3,469 28.76 870 37.88 0.0171
2017-08-11 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 12,061 5,269 77.58 631 83.97 0.0143
2017-05-12 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 6,792 -288 -4.07 343 -3.11 0.0083
2017-02-15 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 7,080 243 3.55 354 28.73 0.0080
2016-11-18 2016-09-30 13F/A-1 MARATHON PETROLEUM COM 56585A102 6,837 893 15.02 275 23.32 0.0068
2016-11-14 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 6,837 275
2016-08-13 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 5,944 126 2.17 223 4.21 0.0066
2016-05-13 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 5,818 702 13.72 214 -18.63 0.0067
2016-02-12 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 5,116 -23 -0.45 263 11.44 0.0086
2015-11-13 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 5,139 -352 -6.41 236 -17.19 0.0083
2015-08-14 2015-06-30 13F MARATHON PETROLEUM COM 56585A102 5,491 1,493 37.34 285 -29.98 0.0094
2015-05-06 2015-03-31 13F MARATHON PETROLEUM COM 56585A102 3,998 -5,879 -59.52 407 -54.22 0.0134
2015-02-12 2014-12-31 13F MARATHON PETROLEUM COM 56585A102 9,877 1,567 18.86 889 26.46 0.0291
2014-11-12 2014-09-30 13F MARATHON PETROLEUM COM 56585A102 8,310 -36 -0.43 703 7.99 0.0238
2014-07-29 2014-06-30 13F MARATHON PETROLEUM COM 56585A102 8,346 -283 -3.28 651 -13.20 0.0220
2014-05-05 2014-03-31 13F MARATHON PETROLEUM COM 56585A102 8,629 -444 -4.89 750 -9.75 0.0268
2014-02-13 2013-12-31 13F/A-1 MARATHON PETROLEUM COM 56585A102 9,073 173 1.94 831 45.53 0.0310
2014-02-12 2013-12-31 13F MARATHON PETROLEUM COM 56585A102 9,073 831
2013-11-14 2013-09-30 13F MARATHON PETROLEUM COM 56585A102 8,900 90 1.02 571 -8.49 0.0257
2013-08-16 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 8,810 8,810 624 0.0301
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.