Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionMeridian Wealth Management, LLC
Latest Disclosed Ownership4,544 shares
Latest Disclosed Value $ 1,109,487
Meridian Wealth Management, LLC reports 2.99% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 6, 2026 - Meridian Wealth Management, LLC filed a 13F-HR form disclosing ownership of 4,544 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,109,487 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 4, 2026 disclosing 4,684 shares of Marathon Petroleum Corporation. This represents a change in shares of -2.99% 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)
2026-05-06 2026-03-31 13F MARATHON PETE COM 56585A102 4,544 -140 -2.99 1,109 45.73 0.0390
2026-02-04 2025-12-31 13F MARATHON PETE COM 56585A102 4,684 318 7.28 762 -9.51 0.0268
2025-11-04 2025-09-30 13F MARATHON PETE COM 56585A102 4,366 -1,297 -22.90 841 -10.53 0.0323
2025-08-08 2025-06-30 13F MARATHON PETE COM 56585A102 5,663 -3,284 -36.71 941 -27.86 0.0402
2025-05-12 2025-03-31 13F MARATHON PETE COM 56585A102 8,947 -967 -9.75 1,304 -5.72 0.0631
2025-02-06 2024-12-31 13F MARATHON PETE COM 56585A102 9,914 -197 -1.95 1,383 -16.09 0.0654
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 10,111 841 9.07 1,647 2.43 0.0810
2024-08-08 2024-06-30 13F MARATHON PETE COM 56585A102 9,270 9,270 1,608 0.1922
2024-04-25 2024-03-31 13F MARATHON PETE COM 56585A102 0 -13,217 -100.00 0 -100.00
2024-02-08 2023-12-31 13F MARATHON PETE COM 56585A102 13,217 457 3.58 1,953 2.09 0.1247
2023-10-17 2023-09-30 13F MARATHON PETE COM 56585A102 12,760 -54 -0.42 1,914 28.05 0.1173
2023-08-02 2023-06-30 13F MARATHON PETE COM 56585A102 12,814 -5,319 -29.33 1,494 -38.87 0.1260
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 18,133 -193 -1.05 2,445 14.63 0.2132
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 18,326 8,265 82.15 2,133 113.41 0.2088
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 10,061 -1,950 -16.24 999 1.22 0.1075
2022-08-05 2022-06-30 13F MARATHON PETE COM 56585A102 12,011 7,998 199.30 987 187.76 0.0807
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 4,013 3 0.07 343 33.46 0.0375
2022-01-27 2021-12-31 13F MARATHON PETE COM 56585A102 4,010 204 5.36 257 9.36 0.0274
2021-10-15 2021-09-30 13F MARATHON PETE COM 56585A102 3,806 -48 -1.25 235 0.86 0.0290
2021-07-22 2021-06-30 13F MARATHON PETE COM 56585A102 3,854 4 0.10 233 13.11 0.0297
2021-05-07 2021-03-31 13F MARATHON PETE COM 56585A102 3,850 3,850 206 0.0300
2020-04-16 2020-03-31 13F MARATHON PETE COM 56585A102 0 -23,333 -100.00 0 -100.00
2020-01-09 2019-12-31 13F MARATHON PETE COM 56585A102 23,333 -285 -1.21 1,405 -2.09 0.6757
2019-11-08 2019-09-30 13F MARATHON PETE COM 56585A102 23,618 -15,595 -39.77 1,435 -93.45 0.6755
2019-07-19 2019-06-30 13F MARATHON PETE COM 56585A102 39,213 11,457 41.28 21,912 1,219.21 0.8868
2019-06-03 2019-03-31 13F/A-1 MARATHON PETE COM 56585A102 27,756 -5,183 -15.74 1,661 -14.56 0.7558
2019-05-15 2019-03-31 13F MARATHON PETE COM 56585A102 27,756 -5,183 16,612
2019-02-05 2018-12-31 13F MARATHON PETE COM 56585A102 32,939 -68,439 -67.51 1,944 -76.02 1.1449
2018-10-19 2018-09-30 13F MARATHON PETE COM 56585A102 101,378 1,419 1.42 8,107 15.60 3.4852
2018-08-06 2018-06-30 13F MARATHON PETE COM 56585A102 99,959 847 0.85 7,013 -3.22 3.3002
2018-05-08 2018-03-31 13F MARATHON PETE COM 56585A102 99,112 4,980 5.29 7,246 36.41 3.6141
2018-01-30 2017-12-31 13F MARATHON PETE COM 56585A102 94,132 19 0.02 5,312 0.66 3.2732
2017-10-31 2017-09-30 13F MARATHON PETE COM 56585A102 94,113 115 0.12 5,277 7.28 3.3454
2017-07-25 2017-06-30 13F MARATHON PETE COM 56585A102 93,998 -45 -0.05 4,919 3.49 3.1165
2017-05-17 2017-03-31 13F/A-1 MARATHON PETE COM 56585A102 94,043 -374 -0.40 4,753 0.00 2.8489
2017-05-15 2017-03-31 13F MARATHON PETE CORP COM Common 56585A102 4,752,957 4,753
2017-02-13 2016-12-31 13F MARATHON PETE COM 56585A102 94,417 94,417 4,753 3.7679
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.