Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionUnited Community Bank
Latest Disclosed Ownership192 shares
Latest Disclosed Value $ 46,883
United Community Bank reports 22.89% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 24, 2026 - United Community Bank filed a 13F-HR form disclosing ownership of 192 shares of Marathon Petroleum Corporation (MX:MPC) valued at $46,883 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 30, 2026 disclosing 249 shares of Marathon Petroleum Corporation. This represents a change in shares of -22.89% 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)
2026-04-24 2026-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 192 -57 -22.89 47 15.00 0.0156
2026-01-30 2025-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 249 57 29.69 40 8.11 0.0153
2025-11-04 2025-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 192 -12 -5.88 37 12.12 0.0115
2025-07-31 2025-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 204 15 7.94 34 22.22 0.0116
2025-05-02 2025-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 189 54 40.00 28 50.00 0.0103
2025-02-07 2024-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 135 15 12.50 19 -5.26 0.0073
2024-10-30 2024-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 120 0 0.00 20 -5.00 0.0076
2024-08-02 2024-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 120 0 0.00 21 -16.67 0.0084
2024-05-03 2024-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 120 -25 -17.24 24 14.29 0.0094
2024-02-13 2023-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 145 0 0.00 22 0.00 0.0091
2023-11-14 2023-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 145 5 3.57 22 31.25 0.0108
2024-02-13 2023-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 140 0 0.00 16 -11.11 0.0143
2024-02-13 2023-03-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 140 0 0.00 19 12.50 0.0178
2024-02-13 2022-12-31 13F MARATHON PETROLEUM COMMON STOCK 56585A102 140 -75 -34.88 16 -23.81 0.0158
2024-02-13 2022-09-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 215 0 0.00 21 23.53 0.0223
2024-02-13 2022-06-30 13F MARATHON PETROLEUM COMMON STOCK 56585A102 215 215 18 0.0190
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.