Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionPettyjohn, Wood & White, Inc
Latest Disclosed Ownership1,618 shares
Latest Disclosed Value $ 395,084
Pettyjohn, Wood & White, Inc ownership in MPC / Marathon Petroleum Corporation

On May 15, 2026 - Pettyjohn, Wood & White, Inc filed a 13F-HR form disclosing ownership of 1,618 shares of Marathon Petroleum Corporation (MX:MPC) valued at $395,084 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 1,618 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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 1,618 0 0.00 395 50.19 0.0629
2026-02-11 2025-12-31 13F MARATHON PETE COM 56585A102 1,618 278 20.75 263 1.94 0.0412
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 1,340 0 0.00 258 16.22 0.0426
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 1,340 1,340 223 0.0398
2025-05-08 2025-03-31 13F MARATHON PETE COM 56585A102 0 -1,908 -100.00 0 -100.00
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 1,908 0 0.00 266 -14.19 0.0488
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 1,908 0 0.00 311 -6.34 0.0572
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 1,908 -1,300 -40.52 331 -48.76 0.0643
2024-05-08 2024-03-31 13F MARATHON PETE COM 56585A102 3,208 0 0.00 646 36.00 0.1286
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 3,208 0 0.00 476 -2.06 0.1031
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 3,208 68 2.17 485 32.51 0.1146
2023-08-10 2023-06-30 13F MARATHON PETE COM 56585A102 3,140 0 0.00 366 -13.48 0.0843
2023-04-25 2023-03-31 13F MARATHON PETE COM 56585A102 3,140 0 0.00 423 0.1035
2023-02-02 2022-12-31 13F MARATHON PETE COM 56585A102 3,140 0 0.00 0 -100.00 0.0910
2022-10-28 2022-09-30 13F MARATHON PETE COM 56585A102 3,140 0 0.00 312 20.93 0.0832
2022-08-08 2022-06-30 13F/A-1 MARATHON PETE COM 56585A102 3,140 640 25.60 258 20.56 0.0610
2022-08-08 2022-06-30 13F MARATHON PETE COM 56585A102 3,140 640 258 0.0610
2022-04-22 2022-03-31 13F MARATHON PETE COM 56585A102 2,500 2,500 214 0.0457
2019-02-08 2018-12-31 13F MARATHON PETROLEUM COM 56585A102 0 -2,724 -100.00 0 -100.00
2018-11-13 2018-09-30 13F MARATHON PETROLEUM COM 56585A102 2,724 -400 -12.80 218 -0.46 0.0709
2018-08-13 2018-06-30 13F MARATHON PETROLEUM COM 56585A102 3,124 0 0.00 219 -3.95 0.0765
2018-05-11 2018-03-31 13F MARATHON PETROLEUM COM 56585A102 3,124 0 0.00 228 10.68 0.0825
2018-02-12 2017-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,124 3,124 206 0.0740
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.