Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionCapital City Trust Co/fl
Latest Disclosed Ownership29,875 shares
Latest Disclosed Value $ 7,294,878
Capital City Trust Co/fl reports 0.16% decrease in ownership of MPC / Marathon Petroleum Corporation

On May 1, 2026 - Capital City Trust Co/fl filed a 13F-HR form disclosing ownership of 29,875 shares of Marathon Petroleum Corporation (MX:MPC) valued at $7,294,878 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 3, 2026 disclosing 29,924 shares of Marathon Petroleum Corporation. This represents a change in shares of -0.16% 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)
2026-05-01 2026-03-31 13F MARATHON PETE COM 56585A102 29,875 -49 -0.16 7,295 49.90 1.0157
2026-02-03 2025-12-31 13F MARATHON PETE COM 56585A102 29,924 -304 -1.01 4,867 -16.48 0.6534
2025-10-27 2025-09-30 13F MARATHON PETE COM 56585A102 30,228 -1,274 -4.04 5,826 11.35 1.4250
2025-07-22 2025-06-30 13F MARATHON PETE COM 56585A102 31,502 157 0.50 5,233 14.59 1.3572
2025-05-07 2025-03-31 13F MARATHON PETE COM 56585A102 31,345 -434 -1.37 4,567 3.00 1.2517
2025-02-03 2024-12-31 13F MARATHON PETE COM 56585A102 31,779 676 2.17 4,433 -12.50 1.1066
2024-11-07 2024-09-30 13F MARATHON PETE COM 56585A102 31,103 167 0.54 5,067 -5.59 1.2576
2024-08-09 2024-06-30 13F MARATHON PETE COM 56585A102 30,936 -135 -0.43 5,367 -14.28 1.4574
2024-05-06 2024-03-31 13F MARATHON PETE COM 56585A102 31,071 -1,509 -4.63 6,261 29.53 1.7430
2024-01-19 2023-12-31 13F MARATHON PETE COM 56585A102 32,580 322 1.00 4,834 -0.98 1.4376
2023-10-12 2023-09-30 13F MARATHON PETE COM 56585A102 32,258 1,999 6.61 4,882 38.35 1.6156
2023-07-27 2023-06-30 13F MARATHON PETE COM 56585A102 30,259 -1,589 -4.99 3,528 -17.84 1.0972
2023-04-19 2023-03-31 13F MARATHON PETE COM 56585A102 31,848 -110 -0.34 4,294 15.46 1.3686
2023-01-27 2022-12-31 13F MARATHON PETE COM 56585A102 31,958 -407 -1.26 3,720 15.68 1.2268
2022-10-24 2022-09-30 13F MARATHON PETE COM 56585A102 32,365 613 1.93 3,215 23.18 1.1258
2022-07-15 2022-06-30 13F MARATHON PETE COM 56585A102 31,752 27 0.09 2,610 -3.80 0.8489
2022-04-20 2022-03-31 13F MARATHON PETE COM 56585A102 31,725 717 2.31 2,713 36.68 0.7832
2022-01-26 2021-12-31 13F MARATHON PETE COM 56585A102 31,008 618 2.03 1,985 5.70 0.5636
2021-10-19 2021-09-30 13F MARATHON PETE COM 56585A102 30,390 731 2.46 1,878 4.80 0.5824
2021-07-23 2021-06-30 13F MARATHON PETE COM 56585A102 29,659 238 0.81 1,792 13.85 0.5432
2021-05-05 2021-03-31 13F MARATHON PETE COM 56585A102 29,421 5,368 22.32 1,574 58.19 0.5008
2021-01-14 2020-12-31 13F MARATHON PETE COM 56585A102 24,053 116 0.48 995 41.74 0.3477
2020-10-21 2020-09-30 13F MARATHON PETE COM 56585A102 23,937 1,036 4.52 702 -17.99 0.2572
2020-07-15 2020-06-30 13F MARATHON PETE COM 56585A102 22,901 5,909 34.78 856 113.47 0.3280
2020-04-23 2020-03-31 13F MARATHON PETE COM 56585A102 16,992 348 2.09 401 -60.02 0.1793
2020-01-15 2019-12-31 13F MARATHON PETE COM 56585A102 16,644 -137 -0.82 1,003 -1.57 0.3789
2019-10-22 2019-09-30 13F MARATHON PETE COM 56585A102 16,781 32 0.19 1,019 8.87 0.4490
2019-08-02 2019-06-30 13F MARATHON PETE COM 56585A102 16,749 -4,458 -21.02 936 -26.24 0.3856
2019-04-19 2019-03-31 13F MARATHON PETE COM 56585A102 21,207 257 1.23 1,269 2.59 0.5360
2019-01-15 2018-12-31 13F/A-1 MARATHON PETE COM 56585A102 20,950 -34 -0.16 1,237 -26.28 0.5633
2019-01-14 2018-12-31 13F MARATHON PETE COM 56585A102 20,984 0 1,678
2018-10-18 2018-09-30 13F MARATHON PETE COM 56585A102 20,984 822 4.08 1,678 18.67 0.6731
2018-07-20 2018-06-30 13F MARATHON PETE COM 56585A102 20,162 11 0.05 1,414 -4.01 0.6044
2018-04-13 2018-03-31 13F MARATHON PETE COM 56585A102 20,151 -19 -0.09 1,473 10.67 0.6333
2018-01-12 2017-12-31 13F/A-1 MARATHON PETE COM 56585A102 20,170 15,450 327.33 1,331 438.87 0.5431
2018-01-10 2017-12-31 13F MARATHON PETE COM 56585A102 4,720 0 265
2017-10-11 2017-09-30 13F MARATHON PETE COM 56585A102 4,720 0 0.00 247 0.00 0.0964
2017-07-27 2017-06-30 13F MARATHON PETE COM 56585A102 4,720 0 0.00 247 3.35 0.0964
2017-04-14 2017-03-31 13F MARATHON PETE COM 56585A102 4,720 0 0.00 239 0.42 0.0943
2017-01-24 2016-12-31 13F MARATHON PETE COM 56585A102 4,720 4,720 238 0.0952
2016-04-14 2016-03-31 13F MARATHON PETE COM 56585A102 0 -6,420 -100.00 0 -100.00
2016-01-13 2015-12-31 13F MARATHON PETE COM 56585A102 6,420 0 0.00 333 12.12 0.1368
2015-10-14 2015-09-30 13F MARATHON PETE COM 56585A102 6,420 0 0.00 297 -11.61 0.1251
2015-07-13 2015-06-30 13F MARATHON PETE COM 56585A102 6,420 3,210 100.00 336 2.13 0.1361
2015-04-17 2015-03-31 13F MARATHON PETE COM 56585A102 3,210 0 0.00 329 13.45 0.1335
2015-02-09 2014-12-31 13F MARATHON PETE COM 56585A102 3,210 0 0.00 290 6.62 0.1184
2014-11-04 2014-09-30 13F MARATHON PETE COM 56585A102 3,210 0 0.00 272 8.37 0.1141
2014-07-17 2014-06-30 13F MARATHON PETE COM 56585A102 3,210 0 0.00 251 -10.04 0.1046
2014-04-15 2014-03-31 13F MARATHON PETE COM 56585A102 3,210 3,210 0.00 279 35.44 0.1212
2014-02-04 2013-12-31 13F MARATHON PETE COM 56585A102 0 -3,210 -100.00 0 -100.00
2013-11-12 2013-09-30 13F MARATHON PETE COM 56585A102 3,210 0 0.00 206 -9.65 0.0909
2013-08-13 2013-06-30 13F MARATHON PETE COM 56585A102 3,210 3,210 228 0.1009
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.