Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionMacquarie Group Ltd
Latest Disclosed Ownership92,901 shares
Latest Disclosed Value $ 22,684,566
Macquarie Group Ltd reports 4.33% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Macquarie Group Ltd filed a 13F-HR form disclosing ownership of 92,901 shares of Marathon Petroleum Corporation (US:MPC) valued at $22,684,566 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 97,104 shares of Marathon Petroleum Corporation. This represents a change in shares of -4.33% during the quarter. The current value of the position is $24,824,076 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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 92,901 -4,203 -4.33 22,685 43.64 0.1056
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 97,104 64,872 201.27 15,792 154.22 0.0690
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 32,232 -8,819 -21.48 6,212 -8.90 0.0073
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 41,051 -38,925 -48.67 6,819 -41.47 0.0084
2025-08-14 2025-03-31 13F/A-1 MARATHON PETE COM 56585A102 79,976 -69,956 -46.66 11,651 -39.24 0.0145
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 79,976 -69,956 9,011 0.0074
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 149,932 -205,573 -57.83 19,177 -66.89 0.0233
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 355,505 -15,437 -4.16 57,916 -10.00 0.0625
2024-08-09 2024-06-30 13F MARATHON PETE COM 56585A102 370,942 -903 -0.24 64,351 -14.09 0.0738
2024-05-14 2024-03-31 13F MARATHON PETE COM 56585A102 371,845 -16,495 -4.25 74,906 30.01 0.0850
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 388,340 10,320 2.73 57,614 0.71 0.0666
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 378,020 -11,624 -2.98 57,210 25.92 0.0719
2023-10-27 2023-06-30 13F/A-2 MARATHON PETE COM 56585A102 389,644 96,171 32.77 45,432 14.82 0.0519
2023-10-12 2023-06-30 13F/A-1 MARATHON PETE COM 56585A102 389,644 96,171 45,432 0.0457
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 389,644 96,171 45,432 0.0461
2023-06-01 2023-03-31 13F/A-1 MARATHON PETE COM 56585A102 293,473 -208,976 -41.59 39,569 -32.34 0.0470
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 293,473 -208,976 39,569 0.0363
2023-02-21 2022-12-31 13F MARATHON PETE COM 56585A102 502,449 -169,480 -25.22 58,480 -12.38 0.0691
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 671,929 -280,987 -29.49 66,743 -14.80 0.0819
2022-08-17 2022-06-30 13F/A-1 MARATHON PETE COM 56585A102 952,916 -143,151 -13.06 78,339 -16.41 0.0880
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 952,916 -143,151 78,339 0.0281
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 1,096,067 -66,594 -5.73 93,714 25.96 0.0713
2022-02-11 2021-12-31 13F Marathon Petroleum COM 56585A102 1,162,661 -141,665 -10.86 74,399 -7.72 0.0620
2021-11-12 2021-09-30 13F MARATHON PETE COM 56585A102 1,304,326 19,567 1.52 80,621 3.86 0.0687
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 1,284,759 1,275,209 13,352.97 77,625 15,120.59 0.0638
2021-05-14 2021-03-31 13F MARATHON PETE COM 56585A102 9,550 0 0.00 510 29.11 0.0007
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 9,550 -4,187 -30.48 395 -1.99 0.0006
2020-11-13 2020-09-30 13F MARATHON PETE COM 56585A102 13,737 -21,873 -61.42 403 -69.72 0.0007
2020-08-11 2020-06-30 13F MARATHON PETE COM 56585A102 35,610 11,640 48.56 1,331 134.74 0.0023
2020-05-15 2020-03-31 13F MARATHON PETE COM 56585A102 23,970 -151,919 -86.37 567 -94.65 0.0012
2020-03-18 2019-12-31 13F/A-2 MARATHON PETE COM 56585A102 175,889 -47,514 -21.27 10,598 -21.91 0.0151
2020-02-28 2019-12-31 13F/A-1 MARATHON PETE COM 56585A102 175,889 0 10,598 0.0153
2020-02-14 2019-12-31 13F MARATHON PETE COM 56585A102 175,889 -47,514 10,598 13,299.5918
2019-11-14 2019-09-30 13F MARATHON PETE COM 56585A102 223,403 -2,790 -1.23 13,572 7.37 0.0227
2019-11-06 2019-06-30 13F/A-2 MARATHON PETE COM 56585A102 226,193 1,412 0.63 12,640 -6.04 0.0213
2019-09-24 2019-06-30 13F/A-1 MARATHON PETE COM 56585A102 226,193 0 12,640 0.0215
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 226,193 1,412 12,640
2019-05-15 2019-03-31 13F MARATHON PETE COM 56585A102 224,781 1,858 0.83 13,453 2.27 0.0229
2019-02-15 2018-12-31 13F MARATHON PETE COM 56585A102 222,923 48,556 27.85 13,155 -5.67 0.0254
2018-11-15 2018-09-30 13F MARATHON PETE COM 56585A102 174,367 -2,200 -1.25 13,945 12.57 0.0227
2019-03-21 2018-06-30 13F/A-1 MARATHON PETE COM 56585A102 176,567 58,773 49.89 12,388 43.86 0.0214
2018-08-14 2018-06-30 13F MARKEL COM 56585A102 176,567 58,773 12,388
2018-05-11 2018-03-31 13F MARATHON PETE COM 56585A102 117,794 -1,473 -1.24 8,611 11.51 0.0157
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 119,267 -7,100 -5.62 7,722 8.98 0.0137
2017-11-08 2017-09-30 13F MARATHON PETE COM 56585A102 126,367 100,867 395.56 7,086 431.18 0.0127
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 25,500 -2,300 -8.27 1,334 -5.05 0.0024
2017-05-15 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 27,800 -10,300 -27.03 1,405 -26.78 0.0026
2017-03-30 2016-12-31 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 38,100 -300,389 -88.74 1,919 -86.03 0.0037
2017-02-15 2016-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 38,100 1,919
2016-11-15 2016-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 338,489 -74,466 -18.03 13,740 -12.35 0.0264
2016-09-14 2016-06-30 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 412,955 -1,219 -0.29 15,676 1.81 0.0308
2016-08-15 2016-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 412,955 15,676
2016-05-16 2016-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 414,174 7,455 1.83 15,398 -26.97 0.0310
2016-02-16 2015-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 406,719 145 0.04 21,084 11.93 0.0433
2015-11-16 2015-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 406,574 -11,400 -2.73 18,837 -13.84 0.0404
2015-08-21 2015-06-30 13F/A-1 MARATHON PETROLEUM Common Stock 56585A102 417,974 208,977 99.99 21,864 2.17 0.0433
2015-08-14 2015-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 417,974 21,864
2015-05-18 2015-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 208,997 910 0.44 21,400 13.94 0.0420
2015-02-17 2014-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 208,087 1,900 0.92 18,782 7.58 0.0387
2014-11-14 2014-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 206,187 6,615 3.31 17,458 12.05 0.0375
2014-08-14 2014-06-30 13F MARATHON PETROLEUM COMMON 56585A102 199,572 5,008 2.57 15,580 -8.00 0.0348
2014-05-15 2014-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 194,564 7,689 4.11 16,935 -1.21 0.0292
2014-02-14 2013-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 186,875 7,797 4.35 17,142 48.83 0.0307
2013-11-14 2013-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 179,078 -2,900 -1.59 11,518 -10.93 0.0225
2013-08-16 2013-06-30 13F/A-1 MARATHON PETROLEUM COMMON 56585A102 181,978 181,978 12,932 0.0282
2013-08-14 2013-06-30 13F MARATHON PETROLEUM COMMON 56585A102 181,978 12,932 0.0282
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.