Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionHowe & Rusling Inc
Latest Disclosed Ownership1,362 shares
Latest Disclosed Value $ 332,673
Howe & Rusling Inc reports 1.80% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 28, 2026 - Howe & Rusling Inc filed a 13F-HR form disclosing ownership of 1,362 shares of Marathon Petroleum Corporation (US:MPC) valued at $332,573 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 14, 2026 disclosing 1,387 shares of Marathon Petroleum Corporation. This represents a change in shares of -1.80% during the quarter. The current value of the position is $363,940 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.

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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)
2026-04-28 2026-03-31 13F MARATHON PETE COM 56585A102 1,362 -25 -1.80 333 47.56 0.0217
2026-02-14 2025-12-31 13F MARATHON PETE COM 56585A102 1,387 -37 -2.60 226 -17.88 0.0149
2025-11-05 2025-09-30 13F MARATHON PETE COM 56585A102 1,424 1,424 274 0.0188
2023-02-15 2022-12-31 13F MARATHON PETE COM 56585A102 0 -598 -100.00 0 -100.00
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 598 2 0.34 59 20.41 0.0078
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 596 -23 -3.72 49 -7.55 0.0062
2022-05-10 2022-03-31 13F MARATHON PETE COM 56585A102 619 -6 -0.96 53 32.50 0.0061
2022-02-14 2021-12-31 13F MARATHON PETE COM 56585A102 625 0 0.00 40 2.56 0.0047
2021-11-15 2021-09-30 13F MARATHON PETE COM 56585A102 625 0 0.00 39 2.63 0.0049
2021-08-13 2021-06-30 13F MARATHON PETE COM 56585A102 625 0 0.00 38 15.15 0.0048
2021-05-13 2021-03-31 13F MARATHON PETE COM 56585A102 625 22 3.65 33 32.00 0.0045
2021-02-08 2020-12-31 13F MARATHON PETE COM 56585A102 603 -241 -28.55 25 0.00 0.0038
2020-11-06 2020-09-30 13F MARATHON PETE COM 56585A102 844 0 0.00 25 -21.87 0.0043
2020-07-15 2020-06-30 13F MARATHON PETE COM 56585A102 844 7 0.84 32 60.00 0.0059
2020-05-14 2020-03-31 13F MARATHON PETE COM 56585A102 837 -146 -14.85 20 -66.10 0.0043
2020-02-05 2019-12-31 13F MARATHON PETE COM 56585A102 983 16 1.65 59 0.00 0.0098
2019-10-31 2019-09-30 13F MARATHON PETE COM 56585A102 967 7 0.73 59 9.26 0.0103
2019-08-12 2019-06-30 13F MARATHON PETE COM 56585A102 960 -19 -1.94 54 -8.47 0.0093
2019-04-29 2019-03-31 13F MARATHON PETE COM 56585A102 979 -1,035 -51.39 59 -50.42 0.0102
2019-02-04 2018-12-31 13F MARATHON PETE COM 56585A102 2,014 899 80.63 119 33.71 0.0252
2018-11-07 2018-09-30 13F MARATHON PETE COM 56585A102 1,115 130 13.20 89 28.99 0.0149
2018-07-31 2018-06-30 13F MARATHON PETE COM 56585A102 985 55 5.91 69 1.47 0.0125
2018-05-14 2018-03-31 13F MARATHON PETE COM 56585A102 930 -52 -5.30 68 4.62 0.0123
2018-01-24 2017-12-31 13F MARATHON PETE COM 56585A102 982 6 0.61 65 18.18 0.0118
2017-10-18 2017-09-30 13F MARATHON PETE COM 56585A102 976 131 15.50 55 25.00 0.0102
2017-07-13 2017-06-30 13F MARATHON PETE COM 56585A102 845 -13 -1.52 44 2.33 0.0089
2017-04-18 2017-03-31 13F MARATHON PETE COM 56585A102 858 -646 -42.95 43 -43.42 0.0086
2017-01-20 2016-12-31 13F MARATHON PETE COM 56585A102 1,504 -39 -2.53 76 20.63 0.0167
2016-10-17 2016-09-30 13F MARATHON PETE COM 56585A102 1,543 613 65.91 63 80.00 0.0136
2016-08-23 2016-06-30 13F MARATHON PETE COM 56585A102 930 -563 -37.71 35 -37.50 0.0077
2016-05-16 2016-03-31 13F MARATHON PETE COM 56585A102 1,493 -114,748 -98.72 56 -99.07 0.0126
2016-02-11 2015-12-31 13F MARATHON PETE COM 56585A102 116,241 20,893 21.91 6,026 36.43 1.3830
2015-11-10 2015-09-30 13F MARATHON PETE COM 56585A102 95,348 1,362 1.45 4,417 -10.15 1.0968
2015-07-22 2015-06-30 13F MARATHON PETE COM 56585A102 93,986 93,411 16,245.39 4,916 8,232.20 1.0720
2015-04-29 2015-03-31 13F MARATHON PETE COM 56585A102 575 575 0.00 59 0.0132
2015-01-30 2014-12-31 13F MARATHON PETE COM 56585A102 0 -579 -100.00 0 -100.00
2014-10-31 2014-09-30 13F MARATHON PETE COM 56585A102 579 15 2.66 49 11.36 0.0114
2014-07-31 2014-06-30 13F MARATHON PETE COM 56585A102 564 -558 -49.73 44 -55.10 0.0099
2014-05-07 2014-03-31 13F MARATHON PETE COM 56585A102 1,122 626 126.21 98 117.78 0.0240
2014-07-31 2013-12-31 13F/A-12 MARATHON PETE COM 56585A102 496 -504 -50.40 45 -30.77 0.0113
2014-02-07 2013-12-31 13F MARATHON PETE COM 56585A102 3,663 336
2013-11-08 2013-09-30 13F MARATHON PETE COM 56585A102 1,000 -23 -2.25 65 -10.96 0.0237
2013-08-14 2013-06-30 13F MARATHON PETE COM 56585A102 1,023 1,023 73 0.0203
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.