Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionSRS Capital Advisors, Inc.
Latest Disclosed Ownership5,983 shares
Latest Disclosed Value $ 1,461,930
SRS Capital Advisors, Inc. reports 19.91% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 13, 2026 - SRS Capital Advisors, Inc. filed a 13F-HR form disclosing ownership of 5,983 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,461,930 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 7,470 shares of Marathon Petroleum Corporation. This represents a change in shares of -19.91% 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)
2026-05-13 2026-03-31 13F MARATHON PETE COM 56585A102 5,983 -1,487 -19.91 1,462 20.35 0.0413
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 7,470 -1,087 -12.70 1,215 -26.38 0.0354
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 8,557 5,323 164.59 1,649 207.08 0.0237
2025-08-12 2025-06-30 13F MARATHON PETE COM 56585A102 3,234 2,115 189.01 537 229.45 0.0247
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 1,119 -1,526 -57.69 163 -55.71 0.0105
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 2,645 1,726 187.81 369 146.98 0.0232
2024-11-06 2024-09-30 13F MARATHON PETE COM 56585A102 919 10 1.10 150 -5.10 0.0134
2024-08-06 2024-06-30 13F MARATHON PETE COM 56585A102 909 715 368.56 158 302.56 0.0154
2024-05-14 2024-03-31 13F MARATHON PETE COM 56585A102 194 1 0.52 39 39.29 0.0041
2024-02-06 2023-12-31 13F MARATHON PETE COM 56585A102 193 0 0.00 29 -3.45 0.0032
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 193 0 0.00 29 31.82 0.0036
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 193 39 25.32 22 10.00 0.0029
2023-05-16 2023-03-31 13F MARATHON PETE COM 56585A102 154 33 27.27 21 42.86 0.0028
2023-02-24 2022-12-31 13F MARATHON PETE COM 56585A102 121 0 0.00 14 16.67 0.0020
2022-11-03 2022-09-30 13F MARATHON PETE COM 56585A102 121 17 16.35 12 33.33 0.0019
2022-08-22 2022-06-30 13F MARATHON PETE COM 56585A102 104 0 0.00 9 0.00 0.0014
2022-05-12 2022-03-31 13F MARATHON PETE COM 56585A102 104 21 25.30 9 80.00 0.0012
2022-02-08 2021-12-31 13F MARATHON PETE COM 56585A102 83 22 36.07 5 25.00 0.0006
2021-11-05 2021-09-30 13F MARATHON PETE COM 56585A102 61 61 4 0.0005
2018-11-05 2018-09-30 13F MARATHON PETE CORP COM COM 56585A102 0 -386 -100.00 0 -100.00
2018-08-21 2018-06-30 13F MARATHON PETE CORP COM COM 56585A102 386 7 1.85 27 0.00 0.0119
2018-05-14 2018-03-31 13F MARATHON PETE CORP COM COM 56585A102 379 20 5.57 27 17.39 0.0140
2018-02-15 2017-12-31 13F MARATHON PETE CORP COM COM 56585A102 359 0 0.00 23 15.00 0.0100
2017-11-15 2017-09-30 13F MARATHON PETE CORP COM COM 56585A102 359 -128 -26.28 20 -20.00 0.0096
2017-08-14 2017-06-30 13F MARATHON PETE CORP COM COM 56585A102 487 194 66.21 25 78.57 0.0120
2017-05-11 2017-03-31 13F MARATHON PETE CORP COM COM 56585A102 293 56 23.63 14 16.67 0.0067
2017-02-14 2016-12-31 13F MARATHON PETE CORP COM COM 56585A102 237 237 12 0.0060
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.