Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionCsenge Advisory Group
Latest Disclosed Ownership17,698 shares
Latest Disclosed Value $ 4,321,605
Csenge Advisory Group reports 71.69% increase in ownership of MPC / Marathon Petroleum Corporation

On April 30, 2026 - Csenge Advisory Group filed a 13F-HR form disclosing ownership of 17,698 shares of Marathon Petroleum Corporation (US:MPC) valued at $4,321,498 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 10,308 shares of Marathon Petroleum Corporation. This represents a change in shares of 71.69% during the quarter. The current value of the position is $4,729,083 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.

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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)
2026-04-30 2026-03-31 13F MARATHON PETE COM 56585A102 17,698 7,390 71.69 4,322 157.82 0.1978
2026-02-06 2025-12-31 13F MARATHON PETE COM 56585A102 10,308 6,698 185.54 1,676 141.15 0.0758
2025-10-28 2025-09-30 13F MARATHON PETE COM 56585A102 3,610 -231 -6.01 696 12.64 0.0332
2025-08-06 2025-06-30 13F MARATHON PETE COM 56585A102 3,841 189 5.18 617 32.40 0.0325
2025-05-05 2025-03-31 13F MARATHON PETE COM 56585A102 3,652 -375 -9.31 466 -16.93 0.0265
2025-01-30 2024-12-31 13F MARATHON PETE COM 56585A102 4,027 -893 -18.15 562 -30.57 0.0305
2024-11-13 2024-09-30 13F MARATHON PETE COM 56585A102 4,920 -268 -5.17 808 -10.12 0.0421
2024-07-10 2024-06-30 13F MARATHON PETE COM 56585A102 5,188 -114 -2.15 900 -15.82 0.0511
2024-05-03 2024-03-31 13F MARATHON PETE COM 56585A102 5,302 -1,360 -20.41 1,068 8.10 0.0598
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 6,662 -1,052 -13.64 988 -15.34 0.0616
2023-11-01 2023-09-30 13F MARATHON PETE COM 56585A102 7,714 140 1.85 1,167 32.16 0.0795
2023-07-20 2023-06-30 13F MARATHON PETE COM 56585A102 7,574 -11 -0.15 883 -13.60 0.0592
2023-05-01 2023-03-31 13F MARATHON PETE COM 56585A102 7,585 -1,554 -17.00 1,023 -3.86 0.0738
2023-02-10 2022-12-31 13F MARATHON PETE COM 56585A102 9,139 345 3.92 1,064 0.0824
2022-10-04 2022-09-30 13F MARATHON PETE COM 56585A102 8,794 23 0.26 1 0.0724
2022-07-27 2022-06-30 13F MARATHON PETE COM 56585A102 8,771 536 6.51 1 0.0604
2022-05-09 2022-03-31 13F MARATHON PETE COM 56585A102 8,235 1,492 22.13 1 0.0557
2022-02-10 2021-12-31 13F MARATHON PETE COM 56585A102 6,743 -385 -5.40 0 0.0367
2021-10-20 2021-09-30 13F MARATHON PETE COM 56585A102 7,128 385 5.71 0 0.0381
2021-07-21 2021-06-30 13F MARATHON PETE COM 56585A102 6,743 6,743 0 0.0367
2019-02-07 2018-12-31 13F MARATHON PETE COM 56585A102 0 -1,287 -100.00 0 -100.00
2018-11-19 2018-09-30 13F MARATHON PETE COM 56585A102 1,287 1,287 82 0.0318
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.