Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionParadigm Asset Management Co Llc
Latest Disclosed Ownership14,200 shares
Latest Disclosed Value $ 3,467,356
Paradigm Asset Management Co Llc ownership in MPC / Marathon Petroleum Corporation

On May 12, 2026 - Paradigm Asset Management Co Llc filed a 13F-HR form disclosing ownership of 14,200 shares of Marathon Petroleum Corporation (MX:MPC) valued at $3,467,356 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 14,200 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% 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)
2026-05-12 2026-03-31 13F MARATHON PETROLEUM COM 56585A102 14,200 0 0.00 3,467 50.15 0.8130
2026-02-04 2025-12-31 13F MARATHON PETROLEUM COM 56585A102 14,200 -1,000 -6.58 2,309 -21.17 0.5332
2025-11-12 2025-09-30 13F MARATHON PETROLEUM COM 56585A102 15,200 0 0.00 2,930 16.05 0.6732
2025-08-06 2025-06-30 13F MARATHON PETROLEUM COM 56585A102 15,200 8,100 114.08 2,525 144.10 0.6231
2025-05-06 2025-03-31 13F MARATHON PETROLEUM COM 56585A102 7,100 0 0.00 1,034 4.44 0.2750
2025-02-03 2024-12-31 13F MARATHON PETROLEUM COM 56585A102 7,100 -1,100 -13.41 990 -25.84 0.2712
2024-11-05 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 8,200 0 0.00 1,336 -6.12 0.3498
2024-08-12 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 8,200 -600 -6.82 1,423 -19.80 0.3972
2024-05-13 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 8,800 0 0.00 1,773 35.86 0.4503
2024-02-12 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 8,800 -300 -3.30 1,306 -5.23 0.3456
2023-10-31 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 9,100 -600 -6.19 1,377 21.75 0.3902
2023-08-14 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 9,700 -4,900 -33.56 1,131 -42.53 0.3036
2023-05-11 2023-03-31 13F MARATHON PETROLEUM COM 56585A102 14,600 0 0.00 1,969 15.83 0.5406
2023-02-13 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 14,600 14,600 1,699 0.4771
2021-02-12 2020-12-31 13F MARATHON PETROLEUM COM 56585A102 0 -23,850 -100.00 0 -100.00
2020-11-13 2020-09-30 13F MARATHON PETROLEUM COM 56585A102 23,850 -2,400 -9.14 700 -28.75 0.2172
2020-08-11 2020-06-30 13F MARATHON PETROLEUM COM 56585A102 26,250 5,300 25.30 981 98.58 0.3029
2020-05-14 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 20,950 0 0.00 495 -60.86 0.1915
2020-02-12 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 20,950 800 3.97 1,262 3.10 0.3754
2019-11-15 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 20,150 -4,200 -17.25 1,224 -10.00 0.4020
2019-08-08 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 24,350 8,200 50.77 1,361 40.79 0.3923
2019-05-14 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 16,150 -750 -4.44 967 -3.11 0.2841
2019-02-14 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 16,900 -6,750 -28.54 997 -47.28 0.3219
2018-11-19 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 23,650 -24,000 -50.37 1,891 -43.43 0.5263
2018-08-15 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 47,650 0 0.00 3,343 -4.02 0.9714
2018-05-07 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 47,650 -2,900 -5.74 3,484 4.44 1.0104
2018-02-09 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 50,550 47,650 1,643.10 3,335 1,958.64 0.9129
2017-11-14 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 2,900 0 0.00 163 7.28 0.0421
2017-08-07 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 2,900 -250 -7.94 152 -5.03 0.0306
2017-05-12 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 3,150 3,150 159 0.0303
2017-01-31 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 0 -18,211 -100.00 0 -100.00
2016-11-14 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 18,211 -900 -4.71 739 1.93 0.1291
2016-08-12 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 19,111 -133,789 -87.50 725 -87.24 0.1263
2016-05-12 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 152,900 45,300 42.10 5,685 1.92 1.0563
2016-02-05 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 107,600 -4,000 -3.58 5,578 7.87 0.9589
2015-11-13 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 111,600 -17,200 -13.35 5,170 -23.26 0.6775
2015-08-13 2015-06-30 13F MARATHON PETROLEUM COM 56585A102 128,800 65,200 102.52 6,738 3.46 0.7495
2015-05-14 2015-03-31 13F MARATHON PETROLEUM COM 56585A102 63,600 8,000 14.39 6,512 29.77 0.7232
2015-02-13 2014-12-31 13F MARATHON PETROLEUM COM 56585A102 55,600 -1,500 -2.63 5,018 3.81 0.6492
2014-11-12 2014-09-30 13F MARATHON PETROLEUM COM 56585A102 57,100 -1,900 -3.22 4,835 4.95 0.6766
2014-08-14 2014-06-30 13F MARATHON PETROLEUM COM 56585A102 59,000 6,400 12.17 4,606 0.61 0.6216
2014-05-14 2014-03-31 13F MARATHON PETROLEUM COM 56585A102 52,600 10,800 25.84 4,578 19.41 0.6250
2014-02-07 2013-12-31 13F MARATHON PETROLEUM COM 56585A102 41,800 -3,400 -7.52 3,834 31.89 0.5876
2013-10-30 2013-09-30 13F MARATHON PETROLEUM COM 56585A102 45,200 600 1.35 2,907 -8.27 0.4736
2013-08-09 2013-06-30 13F MARATHON PETROLEUM COM 56585A102 44,600 44,600 3,169 0.5440
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.