Marathon Petroleum Corporation
US ˙ NYSE ˙ US56585A1025

SecurityMPC / Marathon Petroleum Corporation
InstitutionSilvercrest Asset Management Group Llc
Latest Disclosed Ownership2,904 shares
Latest Disclosed Value $ 709,099
Silvercrest Asset Management Group Llc ownership in MPC / Marathon Petroleum Corporation

On May 15, 2026 - Silvercrest Asset Management Group Llc filed a 13F-HR form disclosing ownership of 2,904 shares of Marathon Petroleum Corporation (US:MPC) valued at $709,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 2,904 shares of Marathon Petroleum Corporation. This represents a change in shares of 0.00% during the quarter. The current value of the position is $775,978 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)
2026-05-15 2026-03-31 13F MARATHON PETE CORP COM COM 56585A102 2,904 0 0.00 709 50.21 0.0051
2026-02-17 2025-12-31 13F MARATHON PETE COM 56585A102 2,904 58 2.04 472 -13.87 0.0032
2025-11-14 2025-09-30 13F MARATHON PETE CORP COM COM 56585A102 2,846 0 0.00 549 16.10 0.0036
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 2,846 -491 -14.71 473 -2.88 0.0032
2025-05-15 2025-03-31 13F MARATHON PETE COM 56585A102 3,337 931 38.69 486 45.07 0.0035
2025-02-14 2024-12-31 13F MARATHON PETE COM 56585A102 2,406 0 0.00 336 -14.32 0.0022
2024-11-14 2024-09-30 13F MARATHON PETE CORP COM COM 56585A102 2,406 0 0.00 392 -6.24 0.0027
2024-08-15 2024-06-30 13F/A-1 MARATHON PETE CORP COM COM 56585A102 2,406 200 9.07 417 -6.08 0.0029
2024-08-14 2024-06-30 13F MARATHON PETE CORP COM COM 56585A102 4,812 2,606 835 0.0029
2024-05-15 2024-03-31 13F MARATHON PETE CORP COM COM 56585A102 2,206 -2,219 -50.15 445 -32.32 0.0030
2024-02-14 2023-12-31 13F MARATHON PETE CORP COM COM 56585A102 4,425 479 12.14 656 9.88 0.0046
2023-11-14 2023-09-30 13F MARATHON PETE CORP COM COM 56585A102 3,946 0 0.00 597 29.78 0.0045
2023-08-14 2023-06-30 13F MARATHON PETE CORP COM COM 56585A102 3,946 48 1.23 460 -12.38 0.0033
2023-05-15 2023-03-31 13F MARATHON PETE CORP COM COM 56585A102 3,898 0 0.00 526 15.89 0.0040
2023-02-14 2022-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,898 1,271 48.38 454 73.56 0.0035
2022-11-14 2022-09-30 13F MARATHON PETE CORP COM COM 56585A102 2,627 -454 -14.74 261 3.16 0.0021
2022-08-15 2022-06-30 13F MARATHON PETE CORP COM COM 56585A102 3,081 0 0.00 253 -3.80 0.0019
2022-05-16 2022-03-31 13F MARATHON PETE CORP COM COM 56585A102 3,081 -546 -15.05 263 13.36 0.0017
2022-02-14 2021-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,627 0 0.00 232 3.57 0.0015
2021-11-15 2021-09-30 13F MARATHON PETE CORP COM COM 56585A102 3,627 0 0.00 224 2.28 0.0015
2021-08-16 2021-06-30 13F MARATHON PETE CORP COM COM 56585A102 3,627 3,627 219 0.0014
2020-05-15 2020-03-31 13F MARATHON PETE CORP COM COM 56585A102 0 -3,365 -100.00 0 -100.00
2020-02-14 2019-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,365 0 0.00 203 -0.49 0.0016
2019-11-14 2019-09-30 13F MARATHON PETE CORP COM COM 56585A102 3,365 3,365 0.00 204 0.49 0.0017
2019-08-14 2019-06-30 13F MARATHON PETE CORP COM COM 56585A102 0 -4,746 -100.00 0 -100.00
2019-05-15 2019-03-31 13F MARATHON PETE CORP COM COM 56585A102 4,746 1,238 35.29 284 37.20 0.0028
2019-02-14 2018-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,508 3,508 -26.09 207 -27.11 0.0023
2018-11-14 2018-09-30 13F MARATHON PETE CORP COM COM 56585A102 0 -3,270 -100.00 0 -100.00
2018-08-14 2018-06-30 13F MARATHON PETE CORP COM COM 56585A102 3,270 0 0.00 229 -4.18 0.0021
2018-05-15 2018-03-31 13F MARATHON PETE CORP COM COM 56585A102 3,270 0 0.00 239 10.65 0.0023
2018-02-14 2017-12-31 13F MARATHON PETE CORP COM COM 56585A102 3,270 3,270 0.00 216 -9.62 0.0020
2017-02-14 2016-12-31 13F MARATHON PETE CORP COM COM 56585A102 0 -5,020 -100.00 0 -100.00
2016-11-14 2016-09-30 13F MARATHON PETE CORP COM COM 56585A102 5,020 5,020 204 0.0024
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.