Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionGeode Capital Management, Llc
Latest Disclosed Ownership7,821,524 shares
Latest Disclosed Value $ 1,902,584,033
Geode Capital Management, Llc reports 0.67% increase in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Geode Capital Management, Llc filed a 13F-HR form disclosing ownership of 7,821,524 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,902,584,033 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 7,769,469 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.67% 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)
2026-05-15 2026-03-31 13F MARATHON PETROLEUM COM 56585A102 7,821,524 52,055 0.67 1,902,584 51.16 0.0632
2026-02-09 2025-12-31 13F MARATHON PETROLEUM COM 56585A102 7,769,469 -151,345 -1.91 1,258,627 -17.22 0.0777
2025-11-12 2025-09-30 13F MARATHON PETROLEUM COM 56585A102 7,920,814 -92,399 -1.15 1,520,476 14.70 0.0970
2025-08-08 2025-06-30 13F MARATHON PETROLEUM COM 56585A102 8,013,213 1,033,645 14.81 1,325,598 30.84 0.0929
2025-05-13 2025-03-31 13F MARATHON PETROLEUM COM 56585A102 6,979,568 65,141 0.94 1,013,117 5.35 0.0796
2025-02-12 2024-12-31 13F MARATHON PETROLEUM COM 56585A102 6,914,427 -123,765 -1.76 961,659 -15.80 0.0745
2024-11-12 2024-09-30 13F MARATHON PETROLEUM COM 56585A102 7,038,192 -285,893 -3.90 1,142,071 -10.16 0.0925
2024-08-09 2024-06-30 13F MARATHON PETROLEUM COM 56585A102 7,324,085 -100,962 -1.36 1,271,258 -14.91 0.1116
2024-05-13 2024-03-31 13F MARATHON PETROLEUM COM 56585A102 7,425,047 53,701 0.73 1,493,928 36.79 0.1382
2024-02-13 2023-12-31 13F MARATHON PETROLEUM COM 56585A102 7,371,346 -218,356 -2.88 1,092,165 -4.79 0.1143
2023-11-13 2023-09-30 13F MARATHON PETROLEUM COM 56585A102 7,589,702 -255,324 -3.25 1,147,108 25.67 0.1366
2023-08-11 2023-06-30 13F MARATHON PETROLEUM COM 56585A102 7,845,026 -370,033 -4.50 912,777 -17.47 0.1073
2023-05-15 2023-03-31 13F MARATHON PETROLEUM COM 56585A102 8,215,059 -219,777 -2.61 1,105,998 112,872.22 0.1436
2023-02-13 2022-12-31 13F MARATHON PETROLEUM COM 56585A102 8,434,836 -608,274 -6.73 980 -99.89 0.1375
2022-11-14 2022-09-30 13F MARATHON PETROLEUM COM 56585A102 9,043,110 -255,262 -2.75 897,050 17.60 0.1361
2022-08-12 2022-06-30 13F MARATHON PETROLEUM COM 56585A102 9,298,372 -1,920,443 -17.12 762,798 -20.28 0.1117
2022-05-13 2022-03-31 13F MARATHON PETROLEUM COM 56585A102 11,218,815 -69,624 -0.62 956,857 32.83 0.1194
2022-02-11 2021-12-31 13F MARATHON PETROLEUM COM 56585A102 11,288,439 -439,944 -3.75 720,386 -0.37 0.0868
2021-11-12 2021-09-30 13F MARATHON PETROLEUM COM 56585A102 11,728,383 602,473 5.42 723,046 7.87 0.0973
2021-08-13 2021-06-30 13F MARATHON PETROLEUM COM 56585A102 11,125,910 217,017 1.99 670,322 15.18 0.0924
2021-05-12 2021-03-31 13F MARATHON PETROLEUM COM 56585A102 10,908,893 269,739 2.54 581,983 32.60 0.0890
2021-02-12 2020-12-31 13F MARATHON PETROLEUM COM 56585A102 10,639,154 223,992 2.15 438,906 43.93 0.0737
2020-11-13 2020-09-30 13F MARATHON PETROLEUM COM 56585A102 10,415,162 -265,755 -2.49 304,943 -23.48 0.0598
2020-08-13 2020-06-30 13F MARATHON PETROLEUM COM 56585A102 10,680,917 1,335,720 14.29 398,531 80.93 0.0853
2020-05-14 2020-03-31 13F MARATHON PETROLEUM COM 56585A102 9,345,197 87,515 0.95 220,266 -60.42 0.0574
2020-02-20 2019-12-31 13F/A-1 MARATHON PETROLEUM COM 56585A102 9,257,682 193,632 2.14 556,529 1.24 0.1163
2020-02-13 2019-12-31 13F MARATHON PETROLEUM COM 56585A102 9,257,682 193,632 556,529 70,924.7413
2019-11-12 2019-09-30 13F MARATHON PETROLEUM COM 56585A102 9,064,050 181,212 2.04 549,702 10.96 0.1283
2019-08-14 2019-06-30 13F MARATHON PETROLEUM COM 56585A102 8,882,838 23,063 0.26 495,415 -6.40 0.1199
2019-05-14 2019-03-31 13F MARATHON PETROLEUM COM 56585A102 8,859,775 126,885 1.45 529,267 2.89 0.1371
2019-03-06 2018-12-31 13F/A-1 MARATHON PETROLEUM COM 56585A102 8,732,890 671,836 8.33 514,399 -20.05 0.1590
2019-02-13 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 8,732,890 671,836 514,399
2018-11-13 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 8,061,054 2,361,511 41.43 643,438 61.22 0.1813
2018-08-14 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 5,699,543 -552,625 -8.84 399,099 -12.50 0.1227
2018-05-15 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 6,252,168 381,876 6.51 456,128 17.98 0.1486
2018-02-13 2017-12-31 13F MARATHON PETROLEUM COM 56585A102 5,870,292 367,650 6.68 386,599 25.51 0.1313
2017-11-14 2017-09-30 13F MARATHON PETROLEUM COM 56585A102 5,502,642 195,812 3.69 308,012 11.10 0.1137
2017-08-14 2017-06-30 13F MARATHON PETROLEUM COM 56585A102 5,306,830 93,846 1.80 277,242 5.38 0.1090
2017-06-21 2017-03-31 13F/A-1 MARATHON PETROLEUM CORP - W COM 56585A102 5,212,984 394,770 8.19 263,092 8.58 0.1079
2017-05-12 2017-03-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 5,212,984 263,092
2017-02-14 2016-12-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,818,214 57,568 1.21 242,306 25.59 0.1127
2016-11-10 2016-09-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,760,646 246,058 5.45 192,941 12.77 0.0972
2016-08-12 2016-06-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,514,588 -107,296 -2.32 171,085 -0.25 0.0930
2016-05-13 2016-03-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,621,884 -31,817 -0.68 171,516 -28.77 0.0910
2016-02-12 2015-12-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,653,701 109,482 2.41 240,788 14.58 0.1372
2015-11-13 2015-09-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,544,219 753 0.02 210,145 -11.41 0.1275
2015-08-14 2015-06-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 4,543,466 2,327,376 105.02 237,224 4.71 0.1354
2015-05-14 2015-03-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,216,090 67,354 3.13 226,560 16.97 0.1295
2015-02-12 2014-12-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,148,736 38,548 1.83 193,697 8.55 0.1152
2014-11-14 2014-09-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,110,188 12,824 0.61 178,444 9.05 0.1157
2014-08-13 2014-06-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,097,364 -167,485 -7.39 163,642 -16.95 0.1058
2014-05-14 2014-03-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,264,849 745 0.03 197,050 -5.09 0.1322
2014-02-14 2013-12-31 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,264,104 26,374 1.18 207,625 44.29 0.1439
2013-11-14 2013-09-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,237,730 -16,903 -0.75 143,895 -10.17 0.1154
2013-08-14 2013-06-30 13F MARATHON PETROLEUM CORP - W COM 56585A102 2,254,633 2,254,633 160,182 0.1408
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.