Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionWilliams Jones Wealth Management, LLC.
Latest Disclosed Ownership10,942 shares
Latest Disclosed Value $ 2,671,818
Williams Jones Wealth Management, LLC. reports 0.43% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 5, 2026 - Williams Jones Wealth Management, LLC. filed a 13F-HR form disclosing ownership of 10,942 shares of Marathon Petroleum Corporation (MX:MPC) valued at $2,671,818 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 10,989 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.43% 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-05 2026-03-31 13F MARATHON PETE CORP COM CS 56585A102 10,942 -47 -0.43 2,672 49.47 0.0328
2026-02-13 2025-12-31 13F MARATHON PETE CORP COM CS 56585A102 10,989 0 0.00 1,787 -15.63 0.0202
2025-11-14 2025-09-30 13F MARATHON PETE CORP COM CS 56585A102 10,989 650 6.29 2,118 23.35 0.0242
2025-08-14 2025-06-30 13F MARATHON PETE CORP COM CS 56585A102 10,339 416 4.19 1,717 18.82 0.0205
2025-05-15 2025-03-31 13F MARATHON PETE CORP COM CS 56585A102 9,923 -350 -3.41 1,446 0.84 0.0185
2025-02-14 2024-12-31 13F MARATHON PETE CORP COM CS 56585A102 10,273 -825 -7.43 1,433 -20.70 0.0173
2024-11-14 2024-09-30 13F MARATHON PETE CORP COM CS 56585A102 11,098 1,000 9.90 1,808 3.20 0.0212
2024-08-05 2024-06-30 13F MARATHON PETE CORP COM CS 56585A102 10,098 -4,375 -30.23 1,752 -39.95 0.0217
2024-05-07 2024-03-31 13F MARATHON PETE CORP COM CS 56585A102 14,473 -480 -3.21 2,916 31.47 0.0371
2024-02-14 2023-12-31 13F MARATHON PETE CORP COM CS 56585A102 14,953 -200 -1.32 2,218 -3.27 0.0311
2023-11-14 2023-09-30 13F MARATHON PETE CORP COM CS 56585A102 15,153 -963 -5.98 2,293 22.03 0.0352
2023-08-14 2023-06-30 13F MARATHON PETE CORP COM CS 56585A102 16,116 -11,918 -42.51 1,879 -50.28 0.0281
2023-05-15 2023-03-31 13F MARATHON PETE CORP COM CS 56585A102 28,034 1,749 6.65 3,780 23.54 0.0592
2023-02-14 2022-12-31 13F MARATHON PETE CORP COM CS 56585A102 26,285 -5,601 -17.57 3,059 -3.41 0.0512
2022-11-14 2022-09-30 13F MARATHON PETE CORP COM CS 56585A102 31,886 -2,561 -7.43 3,167 11.83 0.0551
2022-08-15 2022-06-30 13F MARATHON PETE CORP COM CS 56585A102 34,447 3,417 11.01 2,832 6.75 0.0458
2022-05-16 2022-03-31 13F MARATHON PETE CORP COM CS 56585A102 31,030 -701 -2.21 2,653 30.69 0.0370
2022-02-14 2021-12-31 13F MARATHON PETE CORP COM CS 56585A102 31,731 2,435 8.31 2,030 12.09 0.0254
2021-11-15 2021-09-30 13F MARATHON PETE CORP COM CS 56585A102 29,296 -372 -1.25 1,811 1.00 0.0253
2021-08-16 2021-06-30 13F MARATHON PETE CORP COM CS 56585A102 29,668 10,202 52.41 1,793 72.24 0.0251
2021-05-17 2021-03-31 13F MARATHON PETE CORP COM CS 56585A102 19,466 6,819 53.92 1,041 99.04 0.0163
2021-02-16 2020-12-31 13F MARATHON PETE CORP COM CS 56585A102 12,647 12,647 523 0.0085
2020-05-15 2020-03-31 13F MARATHON PETE CORP COM CS 56585A102 0 -39,280 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MARATHON PETE CORP COM CS 56585A102 39,280 -11,055 -21.96 2,367 -22.60 0.0453
2019-11-14 2019-09-30 13F MARATHON PETE CORP COM CS 56585A102 50,335 50,335 3,058 0.0628
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.