Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionIntegrated Wealth Concepts LLC
Latest Disclosed Ownership12,919 shares
Latest Disclosed Value $ 3,154,601
Integrated Wealth Concepts LLC reports 338.82% increase in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Integrated Wealth Concepts LLC filed a 13F-HR form disclosing ownership of 12,919 shares of Marathon Petroleum Corporation (MX:MPC) valued at $3,154,601 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 2,944 shares of Marathon Petroleum Corporation. This represents a change in shares of 338.82% 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 MARATHON PETROLEUM Common Stock 56585A102 12,919 9,975 338.82 3,155 559.83 0.0252
2026-02-13 2025-12-31 13F MARATHON PETE Common Stock 56585A102 2,944 -9,609 -76.55 479 -80.24 0.0057
2025-11-14 2025-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 12,553 -2,590 -17.10 2,419 -3.82 0.0216
2025-08-14 2025-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 15,143 2,681 21.51 2,515 38.57 0.0252
2025-05-15 2025-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 12,462 -3,142 -20.14 1,816 -16.59 0.0212
2025-02-14 2024-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 15,604 6,423 69.96 2,177 45.55 0.0253
2024-11-14 2024-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 9,181 -351 -3.68 1,496 -9.56 0.0182
2024-08-14 2024-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 9,532 188 2.01 1,654 -12.21 0.0226
2024-05-15 2024-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 9,344 736 8.55 1,883 47.45 0.0273
2024-02-13 2023-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 8,608 -643 -6.95 1,277 -8.79 0.0209
2023-11-15 2023-09-30 13F MARATHON PETROLEUM Common Stock 56585A102 9,251 49 0.53 1,400 30.48 0.0247
2023-08-15 2023-06-30 13F MARATHON PETROLEUM Common Stock 56585A102 9,202 3,202 53.37 1,073 0.0184
2023-05-03 2023-03-31 13F MARATHON PETROLEUM Common Stock 56585A102 6,000 4,045 206.91 1 0.0167
2023-02-13 2022-12-31 13F MARATHON PETROLEUM Common Stock 56585A102 1,955 1,955 0 0.0062
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.