Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionNicolet Advisory Services, Llc
Latest Disclosed Ownership6,611 shares
Latest Disclosed Value $ 1,160,495
Nicolet Advisory Services, Llc reports 0.14% decrease in ownership of MPC / Marathon Petroleum Corporation

On February 13, 2026 - Nicolet Advisory Services, Llc filed a 13F-HR form disclosing ownership of 6,611 shares of Marathon Petroleum Corporation (US:MPC) valued at $1,075,147 USD as of December 31, 2025. The entity filed a previous 13F-HR on November 13, 2025 disclosing 6,620 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.14% during the quarter. The current value of the position is $1,766,525 USD.

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)
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 6,611 -9 -0.14 1,160 -8.45
2025-11-13 2025-09-30 13F MARATHON PETE COM 56585A102 6,620 -535 -7.48 1,268 7.01 0.0986
2025-08-13 2025-06-30 13F MARATHON PETE COM 56585A102 7,155 -57 -0.79 1,184 35.16 0.1008
2025-05-08 2025-03-31 13F MARATHON PETE COM 56585A102 7,212 -370 -4.88 876 -18.74 0.0869
2025-02-12 2024-12-31 13F MARATHON PETE COM 56585A102 7,582 54 0.72 1,079 -18.09 0.0991
2024-11-12 2024-09-30 13F MARATHON PETE COM 56585A102 7,528 -7 -0.09 1,316 7.69 0.1243
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 7,535 15 0.20 1,222 -23.39 0.1171
2024-05-10 2024-03-31 13F MARATHON PETE COM 56585A102 7,520 50 0.67 1,595 40.04 0.1620
2024-02-13 2023-12-31 13F MARATHON PETE COM 56585A102 7,470 26 0.35 1,139 7.86 0.1225
2023-11-07 2023-09-30 13F MARATHON PETE COM 56585A102 7,444 47 0.64 1,056 26.01 0.1170
2023-08-09 2023-06-30 13F MARATHON PETE COM 56585A102 7,397 130 1.79 838 -10.37 0.0920
2023-05-09 2023-03-31 13F MARATHON PETE COM 56585A102 7,267 7,267 935 0.1078
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.