Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionCWM Advisors, LLC
Latest Disclosed Ownership0 shares
Latest Disclosed Value $ 0
CWM Advisors, LLC closes position in MPC / Marathon Petroleum Corporation

On May 13, 2026 - CWM Advisors, LLC filed a 13F-HR/A form disclosing ownership of 0 shares of Marathon Petroleum Corporation (US:MPC) valued at $0 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 964 shares of Marathon Petroleum Corporation. The current value of the position is $0 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)
2026-05-13 2026-03-31 13F/A-1 MARATHON PETE COM 56585A102 0 -100.00 0
2026-04-23 2026-03-31 13F MARATHON PETE COM 56585A102 939 -25 -2.59 229 46.79 0.0189
2026-02-17 2025-12-31 13F MARATHON PETE COM 56585A102 964 964 157 0.0141
2021-11-09 2021-09-30 13F MARATHON PETE COM 56585A102 0 -10,729 -100.00 0 -100.00
2021-08-10 2021-06-30 13F MARATHON PETE COM 56585A102 10,729 -865 -7.46 648 4.52 0.0853
2021-04-30 2021-03-31 13F MARATHON PETE COM 56585A102 11,594 -2,439 -17.38 620 6.90 0.0951
2021-02-12 2020-12-31 13F MARATHON PETE COM 56585A102 14,033 -24,590 -63.67 580 -48.81 0.1283
2020-11-16 2020-09-30 13F MARATHON PETROLEUM COM 56585A102 38,623 27,492 246.99 1,133 172.36 0.3118
2020-08-12 2020-06-30 13F MARATHON PETE COM 56585A102 11,131 -4,075 -26.80 416 15.88 0.1437
2020-05-08 2020-03-31 13F MARATHON PETE COM 56585A102 15,206 5,270 53.04 359 -40.07 0.1434
2020-01-24 2019-12-31 13F MARATHON PETE COM 56585A102 9,936 -115 -1.14 599 -1.96 0.2148
2019-11-13 2019-09-30 13F MARATHON PETE COM 56585A102 10,051 -215 -2.09 611 6.45 0.2330
2019-07-16 2019-06-30 13F MARATHON PETE COM 56585A102 10,266 1,891 22.58 574 14.57 0.2414
2019-05-16 2019-03-31 13F MARATHON PETE COM 56585A102 8,375 2,761 49.18 501 51.36 0.2326
2019-02-21 2018-12-31 13F/A-1 MARATHON PETE COM 56585A102 5,614 1,034 22.58 331 -9.56 0.2226
2019-02-21 2018-09-30 13F/A-1 MARATHON PETE COM 56585A102 4,580 -180 -3.78 366 9.58 0.2256
2018-11-07 2018-09-30 13F MARATHON PETE COM 56585A102 3,565 3,565 285
2019-02-21 2018-06-30 13F/A-1 MARATHON PETE COM 56585A102 4,760 490 11.48 334 7.05 0.2374
2019-02-22 2018-03-31 13F/A-1 MARATHON PETE COM 56585A102 4,270 611 16.70 312 29.46 0.3179
2019-02-21 2017-12-31 13F/A-1 MARATHON PETE COM 56585A102 3,659 3,659 241 0.2049
2018-02-15 2017-12-31 13F Marathon Petroleum COM 56585A102 962 63 0.0502
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.