Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionArkadios Wealth Advisors
Latest Disclosed Ownership11,190 shares
Latest Disclosed Value $ 2,732,216
Arkadios Wealth Advisors reports 3.34% increase in ownership of MPC / Marathon Petroleum Corporation

On May 18, 2026 - Arkadios Wealth Advisors filed a 13F-HR form disclosing ownership of 11,190 shares of Marathon Petroleum Corporation (MX:MPC) valued at $2,732,216 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,828 shares of Marathon Petroleum Corporation. This represents a change in shares of 3.34% 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)
2026-05-18 2026-03-31 13F MARATHON PETE CORP COM Stock 56585A102 11,190 362 3.34 2,732 55.23 0.0288
2026-02-13 2025-12-31 13F MARATHON PETE CORP COM Stock 56585A102 10,828 169 1.59 1,761 -14.31 0.0341
2025-10-29 2025-09-30 13F MARATHON PETE CORP COM Stock 56585A102 10,659 420 4.10 2,055 20.82 0.0493
2025-08-04 2025-06-30 13F MARATHON PETE CORP COM Stock 56585A102 10,239 -1,012 -8.99 1,701 3.72 0.0501
2025-05-08 2025-03-31 13F MARATHON PETE CORP COM Stock 56585A102 11,251 1,460 14.91 1,639 20.07 0.0619
2025-01-15 2024-12-31 13F MARATHON PETE CORP COM Stock 56585A102 9,791 -434 -4.24 1,366 -18.02 0.0745
2024-10-24 2024-09-30 13F MARATHON PETE CORP COM Stock 56585A102 10,225 -41 -0.40 1,666 -6.51 0.0943
2024-07-29 2024-06-30 13F MARATHON PETE CORP COM Stock 56585A102 10,266 4,521 78.69 1,781 53.93 0.1201
2024-04-30 2024-03-31 13F MARATHON PETE CORP COM Stock 56585A102 5,745 114 2.02 1,158 38.56 0.0897
2024-01-24 2023-12-31 13F MARATHON PETE CORP COM Stock 56585A102 5,631 -226 -3.86 835 -5.76 0.0706
2023-10-13 2023-09-30 13F MARATHON PETE CORP COM Stock 56585A102 5,857 -335 -5.41 886 22.88 0.0841
2023-07-26 2023-06-30 13F MARATHON PETE CORP COM Stock 56585A102 6,192 50 0.81 722 -12.92 0.0840
2023-05-02 2023-03-31 13F MARATHON PETE CORP COM Stock 56585A102 6,142 -187 -2.95 828 12.50 0.0986
2023-01-11 2022-12-31 13F MARATHON PETE CORP COM Stock 56585A102 6,329 -157 -2.42 737 0.0976
2022-10-21 2022-09-30 13F MARATHON PETE CORP COM Stock 56585A102 6,486 -136 -2.05 1 0.0976
2022-07-14 2022-06-30 13F MARATHON PETE CORP COM Stock 56585A102 6,622 -933 -12.35 1 0.0809
2022-05-02 2022-03-31 13F MARATHON PETE CORP COM Stock 56585A102 7,555 1,909 33.81 1 0.0846
2022-02-03 2021-12-31 13F MARATHON PETE CORP COM Stock 56585A102 5,646 3,277 138.33 0 0.0478
2021-10-19 2021-09-30 13F MARATHON PETE CORP COM Stock 56585A102 2,369 0 0.00 0 0.0210
2021-07-28 2021-06-30 13F MARATHON PETE CORP COM Stock 56585A102 2,369 2,234 1,654.81 0 0.0174
2021-04-26 2021-03-31 13F MARATHON PETE CORP COM Stock 56585A102 135 41 43.62 0 0.0012
2021-02-09 2020-12-31 13F MARATHON PETE CORP COM Stock 56585A102 94 32 51.61 0 -100.00 0.0006
2020-11-10 2020-09-30 13F MARATHON PETE CORP COM Common Stock 56585A102 62 -110 -63.95 2 -83.33 0.0009
2020-08-10 2020-06-30 13F MARATHON PETE CORP COM Common Stock 56585A102 172 -74 -30.08 6 20.00 0.0035
2020-05-14 2020-03-31 13F MARATHON PETE CORP COM Common Stock 56585A102 246 -5 -1.99 6 -64.29 0.0037
2020-02-14 2019-12-31 13F MARATHON PETE CORP COM Common Stock 56585A102 251 251 15 0.0089
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.