Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionSumitomo Mitsui Trust Holdings, Inc.
Latest Disclosed Ownership643,815 shares
Latest Disclosed Value $ 157,206,747
Sumitomo Mitsui Trust Holdings, Inc. reports 6.22% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 30, 2026 - Sumitomo Mitsui Trust Holdings, Inc. filed a 13F-HR form disclosing ownership of 643,815 shares of Marathon Petroleum Corporation (MX:MPC) valued at $157,206,747 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 23, 2026 disclosing 686,506 shares of Marathon Petroleum Corporation. This represents a change in shares of -6.22% 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)
2026-04-30 2026-03-31 13F MARATHON PETROLEUM COM 56585A102 643,815 -42,691 -6.22 157,207 40.81 0.1018
2026-01-23 2025-12-31 13F MARATHON PETROLEUM COM 56585A102 686,506 -30,924 -4.31 111,646 -19.26 0.0656
2025-10-27 2025-09-30 13F MARATHON PETROLEUM COM 56585A102 717,430 -12,432 -1.70 138,277 14.06 0.0796
2025-07-31 2025-06-30 13F MARATHON PETROLEUM COM 56585A102 729,862 2,648 0.36 121,237 14.43 0.0755
2025-04-25 2025-03-31 13F MARATHON PETROLEUM COM 56585A102 727,214 -81,426 -10.07 105,948 -6.08 0.0749
2025-01-28 2024-12-31 13F MARATHON PETROLEUM COM 56585A102 808,640 -37,668 -4.45 112,805 -18.18 0.0761
2024-11-05 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 846,308 -10,590 -1.24 137,872 -7.25 0.0955
2024-07-19 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 856,898 -112,007 -11.56 148,655 -23.86 0.1097
2024-04-19 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 968,905 -56,256 -5.49 195,234 28.37 0.1340
2024-01-30 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 1,025,161 -85,631 -7.71 152,093 -9.53 0.1124
2023-10-30 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 1,110,792 -135,821 -10.90 168,107 15.65 0.1380
2023-07-31 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 1,246,613 -370,450 -22.91 145,355 -33.33 0.1132
2023-04-27 2023-03-31 13F MARATHON PETROLEUM COM 56585A102 1,617,063 -120,073 -6.91 218,029 7.84 0.1624
2023-01-30 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 1,737,136 -162,071 -8.53 202,185 7.18 0.1601
2022-10-21 2022-09-30 13F MARATHON PETROLEUM COM 56585A102 1,899,207 -142,630 -6.99 188,648 12.38 0.1550
2022-07-26 2022-06-30 13F MARATHON PETROLEUM COM 56585A102 2,041,837 288,335 16.44 167,859 11.96 0.1291
2022-04-27 2022-03-31 13F MARATHON PETROLEUM COM 56585A102 1,753,502 -82,957 -4.52 149,924 27.58 0.0998
2022-02-02 2021-12-31 13F MARATHON PETROLEUM COM 56585A102 1,836,459 -650,000 -26.14 117,515 -23.54 0.0714
2021-10-25 2021-09-30 13F MARATHON PETROLEUM COM 56585A102 2,486,459 172,019 7.43 153,688 9.90 0.0957
2021-08-02 2021-06-30 13F MARATHON PETROLEUM COM 56585A102 2,314,440 172,555 8.06 139,838 22.06 0.0827
2021-04-30 2021-03-31 13F MARATHON PETROLEUM COM 56585A102 2,141,885 -254,490 -10.62 114,569 15.59 0.0716
2021-02-05 2020-12-31 13F MARATHON PETROLEUM COM 56585A102 2,396,375 -132,485 -5.24 99,114 33.58 0.0640
2020-10-30 2020-09-30 13F MARATHON PETROLEUM COM 56585A102 2,528,860 -371,778 -12.82 74,197 -31.57 0.0500
2020-07-27 2020-06-30 13F MARATHON PETROLEUM COM 56585A102 2,900,638 -154,233 -5.05 108,426 50.27 0.0766
2020-04-27 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 3,054,871 371,702 13.85 72,156 -55.37 0.0620
2020-01-31 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 2,683,169 -89,177 -3.22 161,661 -4.01 0.1271
2019-10-31 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 2,772,346 -34,466 -1.23 168,420 7.38 0.1463
2019-07-29 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 2,806,812 -84,380 -2.92 156,845 -9.36 0.1400
2019-05-08 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 2,891,192 100,424 3.60 173,038 6.46 0.1600
2019-02-06 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 2,790,768 1,217,892 77.43 162,534 29.22 0.1748
2018-11-07 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 1,572,876 15,028 0.96 125,783 15.08 0.1352
2018-08-01 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 1,557,848 -81,090 -4.95 109,299 -8.78 0.1274
2018-05-01 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 1,638,938 -19,900 -1.20 119,823 9.48 0.1541
2018-02-06 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 1,658,838 -2,973 -0.18 109,450 17.44 0.1413
2017-11-07 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 1,661,811 -30,899 -1.83 93,194 5.21 0.1315
2017-08-07 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 1,692,710 211,590 14.29 88,580 18.33 0.1300
2017-05-02 2017-03-31 13F MARATHON PETROLEUM COM 56585A102 1,481,120 2,452 0.17 74,856 0.54 0.1157
2017-01-27 2016-12-31 13F MARATHON PETROLEUM COM 56585A102 1,478,668 -30,447 -2.02 74,451 21.54 0.1215
2016-10-28 2016-09-30 13F MARATHON PETROLEUM COM 56585A102 1,509,115 -98,364 -6.12 61,255 0.39 0.1005
2016-07-29 2016-06-30 13F MARATHON PETROLEUM COM 56585A102 1,607,479 -163,552 -9.23 61,020 -7.33 0.1051
2016-05-06 2016-03-31 13F MARATHON PETROLEUM COM 56585A102 1,771,031 52,888 3.08 65,847 -26.72 0.1152
2016-02-09 2015-12-31 13F MARATHON PETROLEUM COM 56585A102 1,718,143 194,928 12.80 89,859 27.33 0.1606
2015-11-06 2015-09-30 13F MARATHON PETROLEUM COM 56585A102 1,523,215 78,132 5.41 70,571 -6.64 0.1366
2015-07-31 2015-06-30 13F Marathon Petroleum COM 56585A102 1,445,083 721,645 99.75 75,592 2.05 0.1358
2015-05-08 2015-03-31 13F Marathon Petroleum COM 56585A102 723,438 723,438 0.00 74,073 0.1337
2015-02-04 2014-12-31 13F Marathon Petroleum COM 56585A102 0 -709,094 -100.00 0 -100.00
2014-11-07 2014-09-30 13F Marathon Petroleum COM 56585A102 709,094 -28,081 -3.81 60,039 4.32 0.1203
2014-08-11 2014-06-30 13F Marathon Petroleum COM 56585A102 737,175 -21,728 -2.86 57,551 -12.87 0.1182
2014-05-09 2014-03-31 13F Marathon Petroleum COM 56585A102 758,903 -99,045 -11.54 66,055 -13.00 0.1390
2014-02-14 2013-12-31 13F Marathon Petroleum COM 56585A102 857,948 -78,424 -8.38 75,928 26.07 0.1576
2013-11-07 2013-09-30 13F Marathon Petroleum COM 56585A102 936,372 -8,778 -0.93 60,227 -10.33 0.1302
2013-08-12 2013-06-30 13F Marathon Petroleum COM 56585A102 945,150 945,150 67,162 0.1524
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.