Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionFirst Bank & Trust
Latest Disclosed Ownership3,202 shares
Latest Disclosed Value $ 781,865
First Bank & Trust reports 0.66% increase in ownership of MPC / Marathon Petroleum Corporation

On April 10, 2026 - First Bank & Trust filed a 13F-HR form disclosing ownership of 3,202 shares of Marathon Petroleum Corporation (MX:MPC) valued at $781,865 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 3,181 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.66% 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)
2026-04-10 2026-03-31 13F Marathon Petroleum Equities 56585A102 3,202 21 0.66 782 51.06 0.0969
2026-01-12 2025-12-31 13F Marathon Petroleum Equities 56585A102 3,181 -23 -0.72 517 -16.21 0.0655
2025-10-10 2025-09-30 13F Marathon Petroleum Equities 56585A102 3,204 -23 -0.71 618 15.11 0.1039
2025-07-09 2025-06-30 13F Marathon Petroleum Equities 56585A102 3,227 0 0.00 536 14.04 0.0956
2025-04-28 2025-03-31 13F Marathon Petroleum Equities 56585A102 3,227 -12 -0.37 470 4.21 0.0910
2025-02-03 2024-12-31 13F Marathon Petroleum Equities 56585A102 3,239 -251 -7.19 452 -20.60 0.0867
2024-10-24 2024-09-30 13F Marathon Petroleum Equities 56585A102 3,490 -76 -2.13 569 -8.09 0.1079
2024-07-09 2024-06-30 13F Marathon Petroleum Equities 56585A102 3,566 0 0.00 619 -13.93 0.1260
2024-04-17 2024-03-31 13F Marathon Petroleum Equities 56585A102 3,566 -46 -1.27 719 34.21 0.1485
2024-01-12 2023-12-31 13F Marathon Petroleum Equities 56585A102 3,612 1 0.03 536 -2.01 0.1294
2023-10-11 2023-09-30 13F Marathon Petroleum Equities 56585A102 3,611 -62 -1.69 546 27.57 0.1431
2023-07-12 2023-06-30 13F Marathon Petroleum Equities 56585A102 3,673 0 0.00 428 -13.54 0.1085
2023-04-25 2023-03-31 13F Marathon Petroleum Equities 56585A102 3,673 87 2.43 495 0.1310
2023-01-27 2022-12-31 13F Marathon Petroleum Equities 56585A102 3,586 42 1.19 0 -100.00 0.1161
2022-10-28 2022-09-30 13F Marathon Petroleum Equities 56585A102 3,544 0 0.00 352 20.96 0.1293
2022-07-22 2022-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,544 3,444 3,444.00 291 3,133.33 0.0947
2022-04-29 2022-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 100 -2,933 -96.70 9 -95.36 0.0020
2022-04-29 2022-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,269 280
2022-02-01 2021-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,033 177 6.20 194 10.23 0.0816
2021-10-18 2021-09-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 2,856 0 0.00 176 1.73 0.0804
2021-08-10 2021-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 2,856 243 9.30 173 23.57 0.0835
2021-04-14 2021-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 2,613 87 3.44 140 33.33 0.0705
2021-01-27 2020-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 2,526 -530 -17.34 105 17.98 0.0665
2020-10-26 2020-09-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,056 0 0.00 89 -21.93 0.0591
2020-08-05 2020-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,056 2,181 249.26 114 442.86 0.0858
2020-04-14 2020-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 875 -2,806 -76.23 21 -90.54 0.0189
2020-01-31 2019-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,681 21 0.57 222 0.00 0.1616
2019-10-17 2019-09-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,660 9 0.25 222 8.82 0.1674
2019-07-26 2019-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,651 40 1.11 204 -5.56 0.1626
2019-04-15 2019-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,611 -54 -1.47 216 0.00 0.1684
2019-01-28 2018-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,665 -10 -0.27 216 -28.48 0.1833
2018-10-10 2018-09-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,675 0 0.00 302 17.05 0.2272
2018-07-31 2018-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,675 0 0.00 258 -4.09 0.1980
2018-04-20 2018-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,675 0 0.00 269 11.16 0.2160
2018-01-18 2017-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,675 152 4.31 242 22.84 0.1906
2017-10-25 2017-09-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,523 127 3.74 197 11.30 0.1606
2017-07-31 2017-06-30 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,396 1 0.03 177 3.51 0.1500
2017-04-27 2017-03-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,395 3 0.09 171 0.00 0.1477
2017-01-19 2016-12-31 13F MARATHON PETE CORP COM COMMON STOCK 56585A102 3,392 3,392 171 0.1561
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.