Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionHamilton Capital, LLC
Latest Disclosed Ownership3,526 shares
Latest Disclosed Value $ 861,005
Hamilton Capital, LLC reports 4.78% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Hamilton Capital, LLC filed a 13F-HR form disclosing ownership of 3,526 shares of Marathon Petroleum Corporation (US:MPC) valued at $860,979 USD as of March 31, 2026. The entity filed a previous 13F-HR on May 15, 2026 disclosing 3,703 shares of Marathon Petroleum Corporation. This represents a change in shares of -4.78% during the quarter. The current value of the position is $942,182 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 3,526 -177 -4.78 861 43.02 0.0446
2026-05-15 2025-12-31 13F MARATHON PETE COM 56585A102 3,703 634 20.66 602 18.27 0.0301
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 3,069 854 38.56 510 58.07 0.0280
2025-05-16 2025-03-31 13F MARATHON PETE COM 56585A102 2,215 92 4.33 323 8.78 0.0195
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 2,123 3 0.14 296 -3.90 0.0225
2024-11-15 2024-09-30 13F MARATHON PETE COM 56585A102 2,120 -24 -1.12 308 -16.98 0.0229
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 2,144 -1,198 -35.85 372 -44.87 0.0282
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 3,342 45 1.36 673 37.63 0.0503
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 3,297 86 2.68 489 0.82 0.0392
2023-11-15 2023-09-30 13F MARATHON PETE COM 56585A102 3,211 -136 -4.06 486 24.36 0.0372
2023-08-03 2023-06-30 13F MARATHON PETE COM 56585A102 3,347 783 30.54 390 13.04 0.0272
2023-05-03 2023-03-31 13F MARATHON PETE COM 56585A102 2,564 338 15.18 346 33.20 0.0222
2023-02-13 2022-12-31 13F MARATHON PETE COM 56585A102 2,226 2,226 259 0.0168
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.