Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionCreative Financial Designs Inc /adv
Latest Disclosed Ownership1,953 shares
Latest Disclosed Value $ 476,885
Creative Financial Designs Inc /adv reports 4.73% decrease in ownership of MPC / Marathon Petroleum Corporation

On April 13, 2026 - Creative Financial Designs Inc /adv filed a 13F-HR form disclosing ownership of 1,953 shares of Marathon Petroleum Corporation (US:MPC) valued at $476,884 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 6, 2026 disclosing 2,050 shares of Marathon Petroleum Corporation. This represents a change in shares of -4.73% during the quarter. The current value of the position is $521,861 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)
2026-04-13 2026-03-31 13F MARATHON PETE CORP COM Stock 56585A102 1,953 -97 -4.73 477 42.94 0.0290
2026-02-06 2025-12-31 13F MARATHON PETE CORP COM Stock 56585A102 2,050 51 2.55 333 -13.51 0.0210
2025-11-12 2025-09-30 13F MARATHON PETE CORP COM Stock 56585A102 1,999 147 7.94 385 25.41 0.0259
2025-08-04 2025-06-30 13F MARATHON PETE CORP COM Stock 56585A102 1,852 129 7.49 308 22.31 0.0221
2025-04-23 2025-03-31 13F MARATHON PETE CORP COM Stock 56585A102 1,723 -13 -0.75 251 3.72 0.0200
2025-02-10 2024-12-31 13F MARATHON PETE CORP COM Stock 56585A102 1,736 -303 -14.86 242 -27.11 0.0197
2024-10-28 2024-09-30 13F MARATHON PETE CORP COM Stock 56585A102 2,039 1 0.05 332 -5.95 0.0280
2024-08-06 2024-06-30 13F MARATHON PETE CORP COM Stock 56585A102 2,038 256 14.37 353 -1.67 0.0315
2024-05-01 2024-03-31 13F MARATHON PETE CORP COM Stock 56585A102 1,782 -259 -12.69 359 18.87 0.0340
2024-01-10 2023-12-31 13F MARATHON PETE CORP COM Stock 56585A102 2,041 1,059 107.84 303 104.05 0.0307
2023-11-14 2023-09-30 13F MARATHON PETE CORP COM Stock 56585A102 982 25 2.61 149 33.33 0.0173
2023-07-26 2023-06-30 13F MARATHON PETE CORP COM Stock 56585A102 957 -865 -47.48 112 -54.69 0.0131
2023-04-25 2023-03-31 13F MARATHON PETE CORP COM Stock 56585A102 1,822 -49 -2.62 246 12.90 0.0322
2023-02-01 2022-12-31 13F MARATHON PETE CORP COM Stock 56585A102 1,871 -55 -2.86 218 13.61 0.0322
2022-11-01 2022-09-30 13F MARATHON PETE CORP COM Stock 56585A102 1,926 -30 -1.53 191 18.63 0.0312
2022-08-01 2022-06-30 13F MARATHON PETE CORP COM Stock 56585A102 1,956 -351 -15.21 161 -18.27 0.0264
2022-04-15 2022-03-31 13F MARATHON PETE CORP COM Stock 56585A102 2,307 -270 -10.48 197 19.39 0.0300
2022-01-26 2021-12-31 13F MARATHON PETE CORP COM Stock 56585A102 2,577 -249 -8.81 165 -5.71 0.0249
2021-10-08 2021-09-30 13F MARATHON PETE CORP COM Stock 56585A102 2,826 -369 -11.55 175 -9.33 0.0290
2021-07-27 2021-06-30 13F MARATHON PETE CORP COM Stock 56585A102 3,195 -1,394 -30.38 193 -21.22 0.0335
2021-04-19 2021-03-31 13F MARATHON PETE CORP COM Stock 56585A102 4,589 4,036 729.84 245 965.22 0.0479
2021-01-08 2020-12-31 13F MARATHON PETE CORP COM Stock 56585A102 553 4 0.73 23 43.75 0.0049
2020-10-06 2020-09-30 13F MARATHON PETE CORP COM Stock 56585A102 549 6 1.10 16 -20.00 0.0040
2020-07-23 2020-06-30 13F MARATHON PETE CORP COM Stock 56585A102 543 -114 -17.35 20 -9.09 0.0061
2020-04-22 2020-03-31 13F MARATHON PETE CORP COM Stock 56585A102 657 65 10.98 22 -40.54 0.0113
2020-01-17 2019-12-31 13F MARATHON PETE CORP COM Stock 56585A102 592 326 122.56 37 131.25 0.0165
2019-10-23 2019-09-30 13F MARATHON PETE CORP COM Stock 56585A102 266 17 6.83 16 14.29 0.0086
2019-08-07 2019-06-30 13F MARATHON PETE CORP COM Stock 56585A102 249 48 23.88 14 16.67 0.0076
2019-04-23 2019-03-31 13F MARATHON PETE CORP COM Stock 56585A102 201 141 235.00 12 200.00 0.0072
2019-01-24 2018-12-31 13F MARATHON PETE CORP COM Stock 56585A102 60 0 0.00 4 -20.00 0.0029
2018-11-02 2018-09-30 13F MARATHON PETE CORP COM Stock 56585A102 60 0 0.00 5 25.00 0.0029
2018-07-13 2018-06-30 13F MARATHON PETE CORP COM Stock 56585A102 60 60 4 0.0023
2018-05-02 2017-03-31 13F MARATHON PETE CORP COM Stock 56585A102 0 -898 -100.00 0 -100.00
2018-03-14 2016-12-31 13F MARATHON PETE CORP COM Stock 56585A102 898 898 45 0.0367
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.