Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionDuncker Streett & Co Inc
Latest Disclosed Ownership350 shares
Latest Disclosed Value $ 85,463
Duncker Streett & Co Inc ownership in MPC / Marathon Petroleum Corporation

On April 29, 2026 - Duncker Streett & Co Inc filed a 13F-HR form disclosing ownership of 350 shares of Marathon Petroleum Corporation (MX:MPC) valued at $85,463 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2025 disclosing 0 shares of Marathon Petroleum Corporation.

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)
2026-04-29 2026-03-31 13F MARATHON PETE COM 56585A102 350 350 85 0.0162
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 0 -85 -100.00 0 -100.00
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 85 0 0.00 14 -7.14 0.0025
2024-07-31 2024-06-30 13F MARATHON PETE COM 56585A102 85 0 0.00 15 -17.65 0.0028
2024-04-23 2024-03-31 13F MARATHON PETE COM 56585A102 85 85 17 0.0034
2023-04-24 2023-03-31 13F MARATHON PETE COM 56585A102 0 -300 -100.00 0 -100.00
2023-01-25 2022-12-31 13F MARATHON PETE COM 56585A102 300 0 0.00 35 13.33 0.0084
2022-11-04 2022-09-30 13F MARATHON PETE COM 56585A102 300 0 0.00 30 20.00 0.0078
2022-08-04 2022-06-30 13F MARATHON PETE COM 56585A102 300 0 0.00 25 -3.85 0.0060
2022-05-09 2022-03-31 13F MARATHON PETE COM 56585A102 300 0 0.00 26 36.84 0.0052
2022-02-08 2021-12-31 13F MARATHON PETE COM 56585A102 300 0 0.00 19 0.00 0.0033
2021-11-03 2021-09-30 13F MARATHON PETE COM 56585A102 300 300 19 0.0036
2020-07-22 2020-06-30 13F MARATHON PETE COM 56585A102 0 -700 -100.00 0 -100.00
2020-04-27 2020-03-31 13F MARATHON PETE COM 56585A102 700 -30 -4.11 17 -61.36 0.0045
2020-01-27 2019-12-31 13F MARATHON PETE COM 56585A102 730 730 44 0.0092
2019-10-31 2019-09-30 13F MARATHON PETE COM 56585A102 0 -730 -100.00 0 -100.00
2019-07-24 2019-06-30 13F MARATHON PETE COM 56585A102 730 0 0.00 41 -6.82 0.0092
2019-04-29 2019-03-31 13F MARATHON PETE COM 56585A102 730 0 0.00 44 2.33 0.0101
2019-01-24 2018-12-31 13F MARATHON PETE COM 56585A102 730 0 0.00 43 -25.86 0.0115
2018-10-22 2018-09-30 13F MARATHON PETE COM 56585A102 730 0 0.00 58 13.73 0.0132
2018-07-23 2018-06-30 13F MARATHON PETE COM 56585A102 730 0 0.00 51 -3.77 0.0126
2018-04-26 2018-03-31 13F MARATHON PETE COM 56585A102 730 0 0.00 53 10.42 0.0134
2018-01-23 2017-12-31 13F MARATHON PETE COM 56585A102 730 0 0.00 48 17.07 0.0123
2017-10-25 2017-09-30 13F MARATHON PETE COM 56585A102 730 0 0.00 41 7.89 0.0124
2017-07-21 2017-06-30 13F MARATHON PETE COM 56585A102 730 0 0.00 38 2.70 0.0119
2017-04-25 2017-03-31 13F MARATHON PETE COM 56585A102 730 0 0.00 37 0.00 0.0116
2017-01-26 2016-12-31 13F MARATHON PETE COM 56585A102 730 0 0.00 37 23.33 0.0123
2016-10-20 2016-09-30 13F MARATHON PETE COM 56585A102 730 0 0.00 30 7.14 0.0104
2016-07-20 2016-06-30 13F MARATHON PETE COM 56585A102 730 0 0.00 28 3.70 0.0100
2016-04-25 2016-03-31 13F MARATHON PETE COM 56585A102 730 0 0.00 27 -28.95 0.0100
2016-01-20 2015-12-31 13F MARATHON PETE COM 56585A102 730 30 4.29 38 18.75 0.0142
2015-10-27 2015-09-30 13F MARATHON PETE COM 56585A102 700 0 0.00 32 -13.51 0.0124
2015-07-20 2015-06-30 13F MARATHON PETE COM 56585A102 700 350 100.00 37 2.78 0.0129
2015-04-28 2015-03-31 13F MARATHON PETE COM 56585A102 350 0 0.00 36 12.50 0.0118
2015-01-22 2014-12-31 13F MARATHON PETE COM 56585A102 350 0 0.00 32 6.67 0.0105
2014-10-23 2014-09-30 13F MARATHON PETE COM 56585A102 350 0 0.00 30 11.11 0.0102
2014-07-23 2014-06-30 13F MARATHON PETE COM 56585A102 350 0 0.00 27 -10.00 0.0087
2014-04-23 2014-03-31 13F MARATHON PETE COM 56585A102 350 0 0.00 30 -6.25 0.0106
2014-01-22 2013-12-31 13F MARATHON PETE COM 56585A102 350 0 0.00 32 39.13 0.0115
2013-10-23 2013-09-30 13F MARATHON PETE COM 56585A102 350 -681 -66.05 23 -68.49 0.0093
2013-07-26 2013-06-30 13F MARATHON PETE COM 56585A102 1,031 1,031 73 0.0280
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.