Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionMount Lucas Management LP
Latest Disclosed Ownership5,032 shares
Latest Disclosed Value $ 1,228,714
Mount Lucas Management LP ownership in MPC / Marathon Petroleum Corporation

On May 5, 2026 - Mount Lucas Management LP filed a 13F-HR form disclosing ownership of 5,032 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,228,714 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 7, 2024 disclosing 0 shares of Marathon Petroleum Corporation.

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 PETROLEUM Common Stock 56585A102 5,032 5,032 1,229 0.4499
2024-02-07 2023-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 0 -25,739 -100.00 0 -100.00
2023-11-14 2023-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 25,739 -4,557 -15.04 3,895 10.28 1.3758
2023-08-14 2023-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 30,296 -33,136 -52.24 3,533 -58.70 1.1812
2023-05-12 2023-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 63,432 2,430 3.98 8,553 20.45 2.2578
2023-02-14 2022-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 61,002 27,414 81.62 7,100 112.83 2.3264
2022-11-14 2022-09-30 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 33,588 -437 -1.28 3,336 19.27 1.1489
2022-11-10 2022-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 33,588 -437 3,336 1.1489
2022-08-10 2022-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 34,025 34,025 2,797 0.9367
2020-02-14 2019-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 0 -4,163 -100.00 0 -100.00
2019-11-14 2019-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 4,163 -121,932 -96.70 253 -96.41 0.0453
2019-08-14 2019-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 126,095 -2,599 -2.02 7,046 -8.52 1.1923
2019-05-15 2019-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 128,694 20,909 19.40 7,702 21.10 1.2744
2019-02-14 2018-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 107,785 -153,660 -58.77 6,360 -69.58 0.8070
2018-11-14 2018-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 261,445 127,214 94.77 20,908 122.02 3.0662
2018-08-14 2018-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 134,231 -2,546 -1.86 9,417 -5.83 1.4267
2018-05-15 2018-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 136,777 -38,761 -22.08 10,000 -13.66 1.6085
2018-02-14 2017-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 175,538 -8,387 -4.56 11,582 12.28 2.0016
2017-11-14 2017-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 183,925 -11,586 -5.93 10,315 0.81 1.8608
2017-08-14 2017-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 195,511 1,268 0.65 10,232 4.23 1.9261
2017-05-15 2017-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 194,243 194,243 9,817 1.9553
2016-11-14 2016-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 0 -291,857 -100.00 0 -100.00
2016-08-15 2016-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 291,857 -4,713 -1.59 11,079 0.48 1.8820
2016-05-16 2016-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 296,570 -61,306 -17.13 11,026 -40.57
2016-02-16 2015-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 357,876 6,862 1.95 18,552 14.07 2.7484
2015-11-16 2015-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 351,014 9,541 2.79 16,263 -8.96 2.0524
2015-08-14 2015-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 341,473 171,138 100.47 17,863 2.42 3.4255
2015-05-15 2015-03-31 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 170,335 -3,214 -1.85 17,441 11.34 2.9464
2015-05-15 2015-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 170,335 17,441
2015-02-17 2014-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 173,549 2,812 1.65 15,665 8.36 1.7348
2014-11-14 2014-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 170,737 39,189 29.79 14,457 19.81 2.5005
2014-02-14 2013-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 131,548 -4,928 -3.61 12,067 37.47 2.6353
2013-11-14 2013-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 136,476 -179,985 -56.87 8,778 -60.97 1.9290
2013-08-14 2013-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 316,461 316,461 22,488 5.1127
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.