Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionLeavell Investment Management, Inc.
Latest Disclosed Ownership15,995 shares
Latest Disclosed Value $ 3,905,624
Leavell Investment Management, Inc. reports 3.93% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 12, 2026 - Leavell Investment Management, Inc. filed a 13F-HR form disclosing ownership of 15,995 shares of Marathon Petroleum Corporation (MX:MPC) valued at $3,905,624 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 9, 2026 disclosing 16,650 shares of Marathon Petroleum Corporation. This represents a change in shares of -3.93% 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 Pete COM 56585A102 15,995 -655 -3.93 3,906 44.26 0.1598
2026-02-09 2025-12-31 13F Marathon Pete COM 56585A102 16,650 -325 -1.91 2,708 -17.24 0.1127
2025-10-28 2025-09-30 13F Marathon Pete COM 56585A102 16,975 -625 -3.55 3,272 11.91 0.1379
2025-07-31 2025-06-30 13F Marathon Pete COM 56585A102 17,600 -107 -0.60 2,924 13.34 0.1310
2025-04-30 2025-03-31 13F Marathon Pete COM 56585A102 17,707 -690 -3.75 2,580 0.51 0.1276
2025-01-29 2024-12-31 13F Marathon Pete COM 56585A102 18,397 -5,199 -22.03 2,566 -33.25 0.1258
2024-11-01 2024-09-30 13F Marathon Pete COM 56585A102 23,596 -250 -1.05 3,844 96,000.00 0.1916
2024-07-17 2024-06-30 13F Marathon Pete COM 56585A102 23,846 425 1.81 4 0.00 0.2284
2024-04-24 2024-03-31 13F Marathon Pete COM 56585A102 23,421 200 0.86 5 33.33 0.2724
2024-01-23 2023-12-31 13F Marathon Pete COM 56585A102 23,221 -195 -0.83 3 0.00 0.2190
2023-10-16 2023-09-30 13F Marathon Pete COM 56585A102 23,416 -554 -2.31 4 50.00 0.2479
2023-07-19 2023-06-30 13F Marathon Pete COM 56585A102 23,970 -1,721 -6.70 3 -33.33 0.1898
2023-04-13 2023-03-31 13F Marathon Pete COM 56585A102 25,691 2,040 8.63 3 50.00 0.2471
2023-01-17 2022-12-31 13F Marathon Pete COM 56585A102 23,651 -241 -1.01 3 -99.92 0.2066
2022-10-17 2022-09-30 13F Marathon Pete COM 56585A102 23,892 -423 -1.74 2,373 18.71 0.1882
2022-07-28 2022-06-30 13F Marathon Pete COM 56585A102 24,315 2,440 11.15 1,999 6.90 0.1530
2022-04-21 2022-03-31 13F Marathon Pete COM 56585A102 21,875 -4,200 -16.11 1,870 12.04 0.1285
2022-01-20 2021-12-31 13F Marathon Pete COM 56585A102 26,075 -5,000 -16.09 1,669 -13.12 0.1110
2021-10-26 2021-09-30 13F Marathon Pete COM 56585A102 31,075 -200 -0.64 1,921 14.82 0.1431
2021-07-21 2021-06-30 13F Marathon Pete COM 56585A102 31,275 0 0.00 1,673 0.00 0.1363
2021-04-15 2021-03-31 13F Marathon Pete COM 56585A102 31,275 1,100 3.65 1,673 34.05 0.1363
2021-01-26 2020-12-31 13F Marathon Pete COM 56585A102 30,175 -100 -0.33 1,248 40.54 0.1078
2020-10-27 2020-09-30 13F Marathon Pete COM 56585A102 30,275 -2,830 -8.55 888 -28.21 0.0772
2020-07-23 2020-06-30 13F Marathon Pete COM 56585A102 33,105 -5,900 -15.13 1,237 34.31 0.1204
2020-04-16 2020-03-31 13F Marathon Pete COM 56585A102 39,005 350 0.91 921 -60.46 0.1067
2020-01-22 2019-12-31 13F Marathon Pete COM 56585A102 38,655 -4,074 -9.53 2,329 -10.29 0.2180
2019-10-28 2019-09-30 13F Marathon Pete COM 56585A102 42,729 -12,675 -22.88 2,596 -16.15 0.2664
2019-07-18 2019-06-30 13F Marathon Pete COM 56585A102 55,404 6,499 13.29 3,096 5.77 0.3259
2019-04-16 2019-03-31 13F Marathon Pete COM 56585A102 48,905 250 0.51 2,927 1.95 0.3270
2019-01-24 2018-12-31 13F Marathon Pete COM 56585A102 48,655 -4,120 -7.81 2,871 -31.97 0.3607
2018-10-22 2018-09-30 13F Marathon Pete COM 56585A102 52,775 1,374 2.67 4,220 17.03 0.4542
2018-07-23 2018-06-30 13F Marathon Pete COM 56585A102 51,401 14,401 38.92 3,606 33.31 0.4097
2018-04-25 2018-03-31 13F MARATHON PETE COM 56585A102 37,000 13,200 55.46 2,705 72.29 0.3149
2018-01-11 2017-12-31 13F MARATHON PETE CORP COM COM 56585A102 23,800 7,000 41.67 1,570 66.67 0.1849
2017-10-25 2017-09-30 13F MARATHON PETE CORP COM COM 56585A102 16,800 0 0.00 942 7.17 0.1163
2017-07-13 2017-06-30 13F MARATHON PETE CORP COM COM 56585A102 16,800 0 0.00 879 3.53 0.1114
2017-04-26 2017-03-31 13F MARATHON PETE CORP COM COM 56585A102 16,800 0 0.00 849 0.35 0.1090
2017-02-22 2016-12-31 13F/A-1 MARATHON PETE CORP COM COM 56585A102 16,800 0 0.00 846 24.05 0.1165
2017-01-30 2016-12-31 13F MARATHON PETE CORP COM COM 56585A102 16,800 846
2016-10-21 2016-09-30 13F MARATHON PETE CORP COM COM 56585A102 16,800 0 0.00 682 6.90 0.1005
2016-07-18 2016-06-30 13F MARATHON PETE CORP COM COM 56585A102 16,800 -331 -1.93 638 0.16 0.0941
2016-04-19 2016-03-31 13F MARATHON PETE CORP COM COM 56585A102 17,131 -30 -0.17 637 -28.43 0.0954
2016-01-22 2015-12-31 13F MARATHON PETE CORP COM COM 56585A102 17,161 0 0.00 890 11.95 0.1305
2015-10-22 2015-09-30 13F MARATHON PETE CORP COM COM 56585A102 17,161 131 0.77 795 -10.77 0.1257
2015-07-17 2015-06-30 13F MARATHON PETE CORP COM COM 56585A102 17,030 8,515 100.00 891 2.18 0.1383
2015-04-17 2015-03-31 13F MARATHON PETE CORP COM COM 56585A102 8,515 8,515 0.00 872 0.1318
2015-02-03 2014-12-31 13F MARATHON PETE CORP COM COM 56585A102 0 -8,515 -100.00 0 -100.00
2014-10-20 2014-09-30 13F MARATHON PETE CORP COM COM 56585A102 8,515 0 0.00 721 8.42 0.1145
2014-07-17 2014-06-30 13F MARATHON PETE CORP COM COM 56585A102 8,515 50 0.59 665 -9.77 0.1051
2014-04-25 2014-03-31 13F MARATHON PETE CORP COM COM 56585A102 8,465 -600 -6.62 737 -11.42 0.1228
2014-01-15 2013-12-31 13F MARATHON PETE CORP COM COM 56585A102 9,065 0 0.00 832 42.71 0.1405
2013-10-15 2013-09-30 13F MARATHON PETE CORP COM COM 56585A102 9,065 0 0.00 583 -9.47 0.1049
2013-07-25 2013-06-30 13F MARATHON PETE CORP COM COM 56585A102 9,065 9,065 644 0.1321
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.