Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionCVA Family Office, LLC
Latest Disclosed Ownership4,751 shares
Latest Disclosed Value $ 1,160,099
CVA Family Office, LLC reports 3.98% increase in ownership of MPC / Marathon Petroleum Corporation

On April 29, 2026 - CVA Family Office, LLC filed a 13F-HR form disclosing ownership of 4,751 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,160,099 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 12, 2026 disclosing 4,569 shares of Marathon Petroleum Corporation. This represents a change in shares of 3.98% 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)
2026-04-29 2026-03-31 13F MARATHON PETE COM 56585A102 4,751 182 3.98 1,160 56.12 0.1221
2026-01-12 2025-12-31 13F MARATHON PETE COM 56585A102 4,569 60 1.33 743 -14.50 0.0855
2025-10-30 2025-09-30 13F MARATHON PETE COM 56585A102 4,509 -6 -0.13 869 16.02 0.1119
2025-07-31 2025-06-30 13F MARATHON PETE COM 56585A102 4,515 203 4.71 750 19.27 0.1054
2025-04-16 2025-03-31 13F MARATHON PETE COM 56585A102 4,312 -90 -2.04 628 2.28 0.0963
2025-01-07 2024-12-31 13F MARATHON PETE COM 56585A102 4,402 52 1.20 614 -13.28 0.0972
2024-10-10 2024-09-30 13F MARATHON PETE COM 56585A102 4,350 -3 -0.07 709 -6.23 0.1150
2024-07-10 2024-06-30 13F MARATHON PETE COM 56585A102 4,353 24 0.55 755 -13.42 0.1359
2024-04-10 2024-03-31 13F MARATHON PETE COM 56585A102 4,329 3 0.07 872 36.04 0.1558
2024-01-16 2023-12-31 13F MARATHON PETE COM 56585A102 4,326 0 0.00 642 -1.99 0.1251
2023-10-11 2023-09-30 13F MARATHON PETE COM 56585A102 4,326 3 0.07 655 29.76 0.1494
2023-07-10 2023-06-30 13F MARATHON PETE COM 56585A102 4,323 -71 -1.62 504 -14.86 0.1057
2023-04-27 2023-03-31 13F MARATHON PETE COM 56585A102 4,394 185 4.40 592 21.06 0.1323
2023-02-22 2022-12-31 13F MARATHON PETE COM 56585A102 4,209 -20 -0.47 490 16.43 0.1188
2022-11-22 2022-09-30 13F MARATHON PETE COM 56585A102 4,229 120 2.92 420 24.26 0.1140
2022-07-11 2022-06-30 13F MARATHON PETE COM 56585A102 4,109 0 0.00 338 -3.70 0.0919
2022-04-22 2022-03-31 13F MARATHON PETE COM 56585A102 4,109 60 1.48 351 35.52 0.0839
2022-01-25 2021-12-31 13F MARATHON PETE COM 56585A102 4,049 1,085 36.61 259 197.70 0.0644
2021-10-12 2021-09-30 13F MARATHON PETE COM 56585A102 2,964 -725 -19.65 87 -60.99 0.0629
2021-07-13 2021-06-30 13F MARATHON PETE COM 56585A102 3,689 -30 -0.81 223 12.06 0.0635
2021-04-14 2021-03-31 13F MARATHON PETE COM 56585A102 3,719 555 17.54 199 51.91 0.0755
2021-01-15 2020-12-31 13F MARATHON PETE COM 56585A102 3,164 200 6.75 131 50.57 0.0805
2020-10-27 2020-09-30 13F MARATHON PETE COM 56585A102 2,964 0 0.00 87 -21.62 0.0629
2020-07-31 2020-06-30 13F MARATHON PETE COM 56585A102 2,964 268 9.94 111 73.44 0.0913
2020-05-28 2020-03-31 13F MARATHON PETE COM 56585A102 2,696 2,696 64 0.0650
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.