Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionStratos Wealth Advisors, LLC
Latest Disclosed Ownership3,187 shares
Latest Disclosed Value $ 778,419
Stratos Wealth Advisors, LLC reports 0.09% increase in ownership of MPC / Marathon Petroleum Corporation

On April 28, 2026 - Stratos Wealth Advisors, LLC filed a 13F-HR form disclosing ownership of 3,187 shares of Marathon Petroleum Corporation (MX:MPC) valued at $778,419 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 20, 2026 disclosing 3,184 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.09% 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)
2026-04-28 2026-03-31 13F MARATHON PETE COM 56585A102 3,187 3 0.09 778 50.48 0.0478
2026-01-20 2025-12-31 13F MARATHON PETE COM 56585A102 3,184 -309 -8.85 518 -23.18 0.0250
2025-11-06 2025-09-30 13F MARATHON PETE COM 56585A102 3,493 4 0.11 673 16.23 0.0324
2025-07-29 2025-06-30 13F MARATHON PETE COM 56585A102 3,489 -51 -1.44 580 12.43 0.0306
2025-04-30 2025-03-31 13F MARATHON PETE COM 56585A102 3,540 -12 -0.34 516 4.04 0.0282
2025-01-27 2024-12-31 13F MARATHON PETE COM 56585A102 3,552 -254 -6.67 496 -20.16 0.0237
2024-10-17 2024-09-30 13F MARATHON PETE COM 56585A102 3,806 -381 -9.10 620 -14.60 0.0284
2024-07-24 2024-06-30 13F MARATHON PETE COM 56585A102 4,187 356 9.29 726 -5.96 0.0359
2024-04-16 2024-03-31 13F MARATHON PETE COM 56585A102 3,831 -3,191 -45.44 772 -25.84 0.0458
2024-01-24 2023-12-31 13F MARATHON PETE COM 56585A102 7,022 13 0.19 1,042 -1.79 0.0600
2023-10-24 2023-09-30 13F MARATHON PETE COM 56585A102 7,009 106 1.54 1,061 31.84 0.0700
2023-07-18 2023-06-30 13F MARATHON PETE COM 56585A102 6,903 -283 -3.94 805 -16.94 0.0570
2023-04-27 2023-03-31 13F MARATHON PETE COM 56585A102 7,186 133 1.89 969 18.05 0.0746
2023-01-19 2022-12-31 13F MARATHON PETE COM 56585A102 7,053 337 5.02 821 22.94 0.0684
2022-10-24 2022-09-30 13F MARATHON PETE COM 56585A102 6,716 133 2.02 667 23.29 0.0701
2022-07-22 2022-06-30 13F MARATHON PETE COM 56585A102 6,583 12 0.18 541 -3.74 0.0491
2022-04-26 2022-03-31 13F MARATHON PETE COM 56585A102 6,571 -407 -5.83 562 25.73 0.0456
2022-01-14 2021-12-31 13F MARATHON PETE COM 56585A102 6,978 -275 -3.79 447 -0.22 0.0322
2021-10-19 2021-09-30 13F MARATHON PETE COM 56585A102 7,253 -407 -5.31 448 -3.24 0.0383
2021-07-19 2021-06-30 13F MARATHON PETE COM 56585A102 7,660 -477 -5.86 463 6.44 0.0410
2021-04-27 2021-03-31 13F MARATHON PETE COM 56585A102 8,137 -211 -2.53 435 26.09 0.0462
2021-01-29 2020-12-31 13F MARATHON PETE COM 56585A102 8,348 -72 -0.86 345 39.68 0.0476
2020-10-29 2020-09-30 13F MARATHON PETE COM 56585A102 8,420 243 2.97 247 -19.28 0.0602
2020-07-28 2020-06-30 13F MARATHON PETE COM 56585A102 8,177 8,177 306 0.0938
2020-05-04 2020-03-31 13F MARATHON PETE COM 56585A102 0 -3,321 -100.00 0 -100.00
2020-01-29 2019-12-31 13F MARATHON PETE COM 56585A102 3,321 -4,747 -58.84 200 -59.18 0.1134
2019-11-12 2019-09-30 13F MARATHON PETE COM 56585A102 8,068 1,757 27.84 490 38.81 0.1875
2019-08-06 2019-06-30 13F MARATHON PETE COM 56585A102 6,311 -206 -3.16 353 -9.49 0.1408
2019-05-07 2019-03-31 13F MARATHON PETE COM 56585A102 6,517 -3,145 -32.55 390 -31.58 0.2108
2019-02-12 2018-12-31 13F MARATHON PETE COM 56585A102 9,662 9,662 570 0.3803
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.