Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionNewEdge Wealth, LLC
Latest Disclosed Ownership5,560 shares
Latest Disclosed Value $ 1,357,748
NewEdge Wealth, LLC reports 40.20% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 13, 2026 - NewEdge Wealth, LLC filed a 13F-HR form disclosing ownership of 5,560 shares of Marathon Petroleum Corporation (US:MPC) valued at $1,357,641 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 9,298 shares of Marathon Petroleum Corporation. This represents a change in shares of -40.20% during the quarter. The current value of the position is $1,485,688 USD.

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)
2026-05-13 2026-03-31 13F MARATHON PETE COM 56585A102 5,560 -3,738 -40.20 1,358 -10.25 0.0162
2026-02-03 2025-12-31 13F MARATHON PETE COM 56585A102 9,298 2,848 44.16 1,512 26.00 0.0171
2025-11-07 2025-09-30 13F MARATHON PETE COM 56585A102 6,450 3,047 89.54 1,201 118.58 0.0172
2025-08-11 2025-06-30 13F MARATHON PETE COM 56585A102 3,403 -1,160 -25.42 550 -17.32 0.0086
2025-05-09 2025-03-31 13F MARATHON PETE COM 56585A102 4,563 -153 -3.24 665 1.07 0.0120
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 4,716 208 4.61 658 -10.49 0.0114
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 4,508 59 1.33 734 -4.80 0.0133
2024-08-02 2024-06-30 13F MARATHON PETE COM 56585A102 4,449 -152 -3.30 772 -8.32 0.0167
2024-05-06 2024-03-31 13F MARATHON PETE COM 56585A102 4,601 61 1.34 842 24.96 0.0189
2024-01-29 2023-12-31 13F MARATHON PETE COM 56585A102 4,540 2 0.04 674 -1.90 0.0172
2023-11-08 2023-09-30 13F MARATHON PETE COM 56585A102 4,538 -386 -7.84 687 19.51 0.0218
2023-08-09 2023-06-30 13F MARATHON PETE COM 56585A102 4,924 -295 -5.65 574 -18.35 0.0192
2023-05-08 2023-03-31 13F MARATHON PETE COM 56585A102 5,219 2,968 131.85 704 169.35 0.0267
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 2,251 -228 -9.20 262 6.10 0.0113
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 2,479 2,479 246 0.0116
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.