Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionCranbrook Wealth Management, LLC
Latest Disclosed Ownership650 shares
Latest Disclosed Value $ 158,717
Cranbrook Wealth Management, LLC ownership in MPC / Marathon Petroleum Corporation

On April 15, 2026 - Cranbrook Wealth Management, LLC filed a 13F-HR form disclosing ownership of 650 shares of Marathon Petroleum Corporation (MX:MPC) valued at $158,717 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 28, 2026 disclosing 650 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% 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)
2026-04-15 2026-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 159 50.48 0.0323
2026-01-28 2025-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 106 -16.00 0.0208
2025-10-14 2025-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 125 16.82 0.0251
2025-07-15 2025-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 108 13.83 0.0230
2025-04-11 2025-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 95 4.44 0.0220
2025-01-15 2024-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 91 -14.29 0.0210
2024-10-15 2024-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 106 -6.25 0.0242
2024-08-09 2024-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 113 -13.85 0.0277
2024-04-17 2024-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 131 35.42 0.0331
2024-01-24 2023-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 96 -2.04 0.0257
2023-10-24 2023-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 98 30.67 0.0291
2023-07-17 2023-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 76 -13.79 0.0211
2023-04-20 2023-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 88 16.00 0.0249
2023-02-09 2022-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 76 15.38 0.0206
2022-10-26 2022-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 65 22.64 0.0168
2022-07-28 2022-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 53 -5.36 0.0133
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 56 33.33 0.0122
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 42 5.00 0.0089
2021-11-12 2021-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 40 2.56 0.0091
2021-08-12 2021-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 39 11.43 0.0089
2021-05-06 2021-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 35 29.63 0.0085
2021-02-11 2020-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 27 42.11 0.0069
2020-11-12 2020-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 19 -20.83 0.0055
2020-08-06 2020-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 24 60.00 0.0072
2020-05-13 2020-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 15 -61.54 0.0051
2020-02-11 2019-12-31 13F MARATHON PETE COM 56585A102 650 0 0.00 39 0.00 0.0108
2019-11-13 2019-09-30 13F MARATHON PETE COM 56585A102 650 0 0.00 39 8.33 0.0112
2019-08-07 2019-06-30 13F MARATHON PETE COM 56585A102 650 0 0.00 36 -7.69 0.0104
2019-05-13 2019-03-31 13F MARATHON PETE COM 56585A102 650 0 0.00 39 2.63 0.0122
2019-02-11 2018-12-31 13F MARATHON PETE COM 56585A102 650 546 525.00 38 280.00 0.0134
2014-02-12 2013-12-31 13F Marathon Petroleum Corp Com COM 56585A102 104 104 10 0.0069
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.