Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionEverSource Wealth Advisors, LLC
Latest Disclosed Ownership14,135 shares
Latest Disclosed Value $ 3,451,147
EverSource Wealth Advisors, LLC reports 55.11% increase in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - EverSource Wealth Advisors, LLC filed a 13F-HR/A form disclosing ownership of 14,135 shares of Marathon Petroleum Corporation (MX:MPC) valued at $3,451,147 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 9,113 shares of Marathon Petroleum Corporation. This represents a change in shares of 55.11% 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/A-1 MARATHON PETE CORP COM Stock 56585A102 14,135 5,022 55.11 3,451 132.86 0.0160
2026-05-14 2026-03-31 13F MARATHON PETE CORP COM Stock 56585A102 12,387 3,274 458 0.0140
2026-02-06 2025-12-31 13F MARATHON PETE CORP COM Stock 56585A102 9,113 722 8.60 1,482 -8.35 0.0545
2025-11-10 2025-09-30 13F MARATHON PETE CORP COM Stock 56585A102 8,391 13 0.16 1,617 16.25 0.0640
2025-08-13 2025-06-30 13F MARATHON PETE CORP COM Stock 56585A102 8,378 401 5.03 1,392 19.71 0.0628
2025-05-13 2025-03-31 13F MARATHON PETE CORP COM Stock 56585A102 7,977 179 2.30 1,162 6.90 0.0638
2025-02-10 2024-12-31 13F MARATHON PETE CORP COM Stock 56585A102 7,798 545 7.51 1,088 -7.96 0.0612
2024-11-08 2024-09-30 13F MARATHON PETE CORP COM Stock 56585A102 7,253 88 1.23 1,182 -6.86 0.0748
2024-08-13 2024-06-30 13F MARATHON PETE CORP COM Stock 56585A102 7,165 61 0.86 1,268 -1.71 0.0842
2024-06-11 2024-03-31 13F/A-1 MARATHON PETE CORP COM Stock 56585A102 7,104 631 9.75 1,291 34.38 0.1015
2024-05-13 2024-03-31 13F MARATHON PETE CORP COM Stock 56585A102 6,473 0 960 0.0340
2024-02-09 2023-12-31 13F MARATHON PETE CORP COM Stock 56585A102 6,473 94 1.47 960 -0.52 0.0880
2023-11-03 2023-09-30 13F MARATHON PETE CORP COM Stock 56585A102 6,379 -44 -0.69 965 29.01 0.1024
2023-08-04 2023-06-30 13F MARATHON PETE CORP COM Stock 56585A102 6,423 37 0.58 749 -13.12 0.0826
2023-05-11 2023-03-31 13F MARATHON PETE CORP COM Stock 56585A102 6,386 -296 -4.43 861 10.81 0.1072
2023-02-09 2022-12-31 13F MARATHON PETE CORP COM Stock 56585A102 6,682 -242 -3.50 778 12.94 0.1178
2022-11-07 2022-09-30 13F MARATHON PETE CORP COM Stock 56585A102 6,924 5,857 548.92 688 681.82 0.1575
2022-08-01 2022-06-30 13F MARATHON PETE CORP COM Stock 56585A102 1,067 593 125.11 88 114.63 0.0227
2022-05-25 2022-03-31 13F MARATHON PETE CORP COM Stock 56585A102 474 -384 -44.76 41 -25.45 0.0104
2022-02-17 2021-12-31 13F/A-1 MARATHON PETE CORP COM Stock 56585A102 858 858 55 0.0154
2022-02-07 2021-12-31 13F MARATHON PETE CORP COM Stock 56585A102 858 858 55 0.0154
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.