Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionUnited Asset Strategies, Inc.
Latest Disclosed Ownership907 shares
Latest Disclosed Value $ 221,479
United Asset Strategies, Inc. ownership in MPC / Marathon Petroleum Corporation

On April 29, 2026 - United Asset Strategies, Inc. filed a 13F-HR form disclosing ownership of 907 shares of Marathon Petroleum Corporation (MX:MPC) valued at $221,479 USD as of March 31, 2026. The entity filed a previous 13F-HR on August 1, 2024 disclosing 0 shares of Marathon Petroleum Corporation.

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)
2026-04-29 2026-03-31 13F MARATHON PETE COM 56585A102 907 907 221 0.0176
2024-08-01 2024-06-30 13F MARATHON PETE COM 56585A102 0 -100.00 0
2024-04-23 2024-03-31 13F MARATHON PETE COM 56585A102 1,000 1,000 202 0.0201
2020-05-08 2020-03-31 13F MARATHON PETE COM 56585A102 0 -26,735 -100.00 0 -100.00
2020-02-12 2019-12-31 13F MARATHON PETE COM 56585A102 26,735 2,391 9.82 1,611 8.92 0.3128
2019-11-01 2019-09-30 13F MARATHON PETE COM 56585A102 24,344 2,088 9.38 1,479 18.89 0.3238
2019-07-31 2019-06-30 13F MARATHON PETE COM 56585A102 22,256 2,149 10.69 1,244 3.41 0.2858
2019-05-02 2019-03-31 13F MARATHON PETE COM 56585A102 20,107 -4,834 -19.38 1,203 -18.27 0.2827
2019-02-11 2018-12-31 13F MARATHON PETE COM 56585A102 24,941 24,941 1,472 0.4018
2017-02-08 2016-12-31 13F MARATHON PETE COM 56585A102 0 -5,115 -100.00 0 -100.00
2016-11-04 2016-09-30 13F MARATHON PETE COM 56585A102 5,115 -101,821 -95.22 208 -94.88 0.0728
2016-08-01 2016-06-30 13F MARATHON PETE COM 56585A102 106,936 12,003 12.64 4,059 14.99 1.5227
2016-05-05 2016-03-31 13F MARATHON PETE COM 56585A102 94,933 80,574 561.14 3,530 374.46 1.5746
2016-02-09 2015-12-31 13F MARATHON PETE COM 56585A102 14,359 1,192 9.05 744 21.97 0.3228
2015-11-04 2015-09-30 13F MARATHON PETE COM 56585A102 13,167 -33,144 -71.57 610 -74.82 0.2810
2015-08-14 2015-06-30 13F MARATHON PETE COM 56585A102 46,311 34,720 299.54 2,423 111.99 1.0824
2015-05-15 2015-03-31 13F/A-1 MARATHON PETE COM 56585A102 11,591 11,591 1,143 0.5302
2015-05-13 2015-03-31 13F MARATHON PETE COM 56585A102 11,591 11,591 1,143 0.5291
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.