Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionJNBA Financial Advisors
Latest Disclosed Ownership15 shares
Latest Disclosed Value $ 3,663
JNBA Financial Advisors reports 62.50% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 22, 2026 - JNBA Financial Advisors filed a 13F-HR form disclosing ownership of 15 shares of Marathon Petroleum Corporation (MX:MPC) valued at $3,663 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 40 shares of Marathon Petroleum Corporation. This represents a change in shares of -62.50% 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)
2026-04-22 2026-03-31 13F MARATHON PETE COM 56585A102 15 -25 -62.50 4 -50.00 0.0003
2026-01-26 2025-12-31 13F MARATHON PETE COM 56585A102 40 15 60.00 7 50.00 0.0006
2025-10-28 2025-09-30 13F MARATHON PETE COM 56585A102 25 -6 -19.35 5 -20.00 0.0004
2025-07-24 2025-06-30 13F MARATHON PETE COM 56585A102 31 0 0.00 5 25.00 0.0005
2025-04-25 2025-03-31 13F MARATHON PETE COM 56585A102 31 -75 -70.75 5 -71.43 0.0005
2025-01-30 2024-12-31 13F MARATHON PETE COM 56585A102 106 75 241.94 15 180.00 0.0015
2024-10-31 2024-09-30 13F MARATHON PETE COM 56585A102 31 0 0.00 5 0.00 0.0005
2024-07-22 2024-06-30 13F MARATHON PETE COM 56585A102 31 0 0.00 5 -16.67 0.0006
2024-04-26 2024-03-31 13F MARATHON PETE COM 56585A102 31 0 0.00 6 50.00 0.0007
2024-02-08 2023-12-31 13F MARATHON PETE COM 56585A102 31 0 0.00 5 0.00 0.0005
2023-11-02 2023-09-30 13F MARATHON PETE COM 56585A102 31 6 24.00 5 100.00 0.0006
2023-08-03 2023-06-30 13F MARATHON PETE COM 56585A102 25 0 0.00 3 -33.33 0.0003
2023-05-02 2023-03-31 13F MARATHON PETE COM 56585A102 25 0 0.00 3 50.00 0.0004
2023-02-07 2022-12-31 13F MARATHON PETE COM 56585A102 25 0 0.00 3 0.00 0.0004
2022-11-07 2022-09-30 13F MARATHON PETE COM 56585A102 25 -100 -80.00 2 -80.00 0.0003
2022-07-22 2022-06-30 13F MARATHON PETE COM 56585A102 125 -100 -44.44 10 -47.37 0.0015
2022-04-29 2022-03-31 13F MARATHON PETE COM 56585A102 225 25 12.50 19 46.15 0.0025
2022-02-03 2021-12-31 13F MARATHON PETE COM 56585A102 200 0 0.00 13 8.33 0.0016
2021-11-10 2021-09-30 13F MARATHON PETE COM 56585A102 200 0 0.00 12 0.00 0.0016
2021-08-04 2021-06-30 13F MARATHON PETE COM 56585A102 200 0 0.00 12 9.09 0.0016
2021-05-03 2021-03-31 13F MARATHON PETE COM 56585A102 200 0 0.00 11 37.50 0.0016
2021-01-25 2020-12-31 13F MARATHON PETE COM 56585A102 200 0 0.00 8 33.33 0.0013
2020-11-05 2020-09-30 13F MARATHON PETE COM 56585A102 200 0 0.00 6 -14.29 0.0012
2020-07-24 2020-06-30 13F MARATHON PETE COM 56585A102 200 0 0.00 7 40.00 0.0015
2020-05-01 2020-03-31 13F MARATHON PETE COM 56585A102 200 0 0.00 5 -58.33 0.0012
2020-02-10 2019-12-31 13F MARATHON PETE COM 56585A102 200 -142 -41.52 12 -42.86 0.0023
2019-11-01 2019-09-30 13F MARATHON PETE COM 56585A102 342 123 56.16 21 75.00 0.0043
2019-07-26 2019-06-30 13F MARATHON PETE COM 56585A102 219 -119 -35.21 12 -40.00 0.0024
2019-05-01 2019-03-31 13F MARATHON PETE COM 56585A102 338 0 0.00 20 0.00 0.0043
2019-02-06 2018-12-31 13F MARATHON PETE COM 56585A102 338 153 82.70 20 33.33 0.0045
2018-11-01 2018-09-30 13F MARATHON PETEROLEUM COM 56585A102 185 185 15 0.0067
2017-02-03 2016-12-31 13F MARATHON PETE COM 56585A102 0 -881 -100.00 0 -100.00
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 881 881 475.82 36 227.27 0.0053
2013-10-16 2013-09-30 13F MARATHON PETE COM 56585A102 0 -153 -100.00 0 -100.00
2013-07-19 2013-06-30 13F MARATHON PETE COM 56585A102 153 153 11 0.0076
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.