Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionVenture Visionary Partners LLC
Latest Disclosed Ownership30,284 shares
Latest Disclosed Value $ 7,395,025
Venture Visionary Partners LLC reports 9.63% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 14, 2026 - Venture Visionary Partners LLC filed a 13F-HR form disclosing ownership of 30,284 shares of Marathon Petroleum Corporation (MX:MPC) valued at $7,395,025 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 33,512 shares of Marathon Petroleum Corporation. This represents a change in shares of -9.63% 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)
2026-05-14 2026-03-31 13F MARATHON PETE COM 56585A102 30,284 -3,228 -9.63 7,395 30.61 0.2462
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 33,512 283 0.85 5,662 -11.59 0.1845
2025-10-06 2025-09-30 13F MARATHON PETE COM 56585A102 33,229 -3,342 -9.14 6,405 5.43 0.2199
2025-07-17 2025-06-30 13F MARATHON PETE COM 56585A102 36,571 -19,821 -35.15 6,075 -26.06 0.2280
2025-05-14 2025-03-31 13F MARATHON PETE COM 56585A102 56,392 -201 -0.36 8,216 4.07 0.3440
2025-07-14 2024-12-31 13F/A-01 MARATHON PETE COM 56585A102 56,593 -148 -0.26 7,895 -14.59 0.3345
2025-02-12 2024-12-31 13F MARATHON PETE COM 56585A102 113,176 56,435 15,790 0.4713
2024-10-21 2024-09-30 13F MARATHON PETE COM 56585A102 56,741 1,186 2.13 9,244 -4.10 0.4015
2024-08-13 2024-06-30 13F MARATHON PETE COM 56585A102 55,555 6,773 13.88 9,638 -1.94 0.4435
2024-05-13 2024-03-31 13F MARATHON PETE COM 56585A102 48,782 -557 -1.13 9,830 34.29 0.4660
2024-02-15 2023-12-31 13F/A-1 MARATHON PETE COM 56585A102 49,339 469 0.96 7,320 -1.04 0.3860
2024-01-24 2023-12-31 13F MARATHON PETE COM 56585A102 49,090 220 7,283 0.3934
2023-10-13 2023-09-30 13F MARATHON PETE COM 56585A102 48,870 -4,960 -9.21 7,396 17.85 0.4447
2023-07-14 2023-06-30 13F MARATHON PETE COM 56585A102 53,830 2,376 4.62 6,277 -9.53 0.3693
2023-04-13 2023-03-31 13F MARATHON PETE COM 56585A102 51,454 17,339 50.83 6,937 74.74 0.4395
2023-02-09 2022-12-31 13F MARATHON PETE COM 56585A102 34,115 -306 -0.89 3,971 16.12 0.2874
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 34,421 16 0.05 3,419 20.90 0.2774
2022-07-26 2022-06-30 13F MARATHON PETE COM 56585A102 34,405 -3,449 -9.11 2,828 -12.61 0.2151
2022-05-03 2022-03-31 13F MARATHON PETE COM 56585A102 37,854 -1,329 -3.39 3,236 21.33 0.2156
2022-02-08 2021-12-31 13F MARATHON PETE COM 56585A102 39,183 8,981 29.74 2,667 42.93 0.1733
2021-10-20 2021-09-30 13F MARATHON PETE COM 56585A102 30,202 2,755 10.04 1,866 12.55 0.1327
2021-08-05 2021-06-30 13F MARATHON PETE COM 56585A102 27,447 3,514 14.68 1,658 29.53 0.1330
2021-04-27 2021-03-31 13F MARATHON PETE COM 56585A102 23,933 13,080 120.52 1,280 185.71 0.1069
2021-01-27 2020-12-31 13F MARATHON PETE COM 56585A102 10,853 10,853 448 0.0493
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.