Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionSnowden Capital Advisors LLC
Latest Disclosed Ownership7,759 shares
Latest Disclosed Value $ 1,261,890
Snowden Capital Advisors LLC reports 38.63% increase in ownership of MPC / Marathon Petroleum Corporation

On February 17, 2026 - Snowden Capital Advisors LLC filed a 13F-HR form disclosing ownership of 7,759 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,261,890 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 14, 2025 disclosing 5,597 shares of Marathon Petroleum Corporation. This represents a change in shares of 38.63% 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)
2026-02-17 2025-12-31 13F MARATHON PETE COM 56585A102 7,759 2,162 38.63 1,262 16.98 0.0326
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 5,597 -52 -0.92 1,079 14.93 0.0295
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 5,649 -2,436 -30.13 938 -20.31 0.0277
2025-05-14 2025-03-31 13F MARATHON PETE COM 56585A102 8,085 -1,793 -18.15 1,178 -14.52 0.0377
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 9,878 -891 -8.27 1,378 -21.49 0.0428
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 10,769 252 2.40 1,754 -3.84 0.0522
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 10,517 -222 -2.07 1,824 -15.67 0.0542
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 10,739 2,092 24.19 2,164 68.72 0.0676
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 8,647 -9,611 -52.64 1,283 -53.60 0.0488
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 18,258 1,288 7.59 2,763 39.69 0.1175
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 16,970 4,073 31.58 1,979 13.81 0.0708
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 12,897 7,741 150.14 1,739 189.67 0.0676
2023-02-13 2022-12-31 13F MARATHON PETE COM 56585A102 5,156 -80 -1.53 600 15.38 0.0251
2022-11-09 2022-09-30 13F MARATHON PETE COM 56585A102 5,236 -640 -10.89 520 7.66 0.0235
2022-08-12 2022-06-30 13F MARATHON PETE COM 56585A102 5,876 -1,376 -18.97 483 -22.10 0.0217
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 7,252 1,822 33.55 620 78.67 0.0248
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 5,430 -3,554 -39.56 347 -37.48 0.0177
2024-02-06 2021-09-30 13F MARATHON PETE COM 56585A102 8,984 -1,058 -10.54 555 -8.42 0.0277
2024-01-08 2021-06-30 13F MARATHON PETE COM 56585A102 10,042 4,811 91.97 607 117.20 0.0304
2024-01-08 2021-03-31 13F MARATHON PETE COM 56585A102 5,231 5,231 280 0.0161
2024-01-08 2020-03-31 13F MARATHON PETE COM 56585A102 0 -7,221 -100.00 0 -100.00
2024-01-30 2019-12-31 13F/A-1 MARATHON PETE COM 56585A102 7,221 -274,873 -97.44 435 154.39 0.0385
2024-01-08 2019-12-31 13F MARATHON PETE COM 56585A102 7,221 -274,873 435 0.0372
2024-01-08 2019-09-30 13F MARATHON PETE COM 56585A102 282,094 142,094 101.50 171 -0.58 0.0164
2024-01-08 2019-06-30 13F MARATHON PETE COM 56585A102 140,000 140,000 173 0.0157
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.