Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionTransamerica Financial Advisors, Inc.
Latest Disclosed Ownership1,653 shares
Latest Disclosed Value $ 403,639
Transamerica Financial Advisors, Inc. reports 17.99% increase in ownership of MPC / Marathon Petroleum Corporation

On May 15, 2026 - Transamerica Financial Advisors, Inc. filed a 13F-HR form disclosing ownership of 1,653 shares of Marathon Petroleum Corporation (MX:MPC) valued at $403,639 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 1,401 shares of Marathon Petroleum Corporation. This represents a change in shares of 17.99% 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)
2026-05-15 2026-03-31 13F MARATHON PETE COM 56585A102 1,653 252 17.99 404 77.53 0.0344
2026-02-13 2025-12-31 13F MARATHON PETE COM 56585A102 1,401 -62 -4.24 228 -19.22 0.0190
2025-11-14 2025-09-30 13F MARATHON PETE COM 56585A102 1,463 25 1.74 282 18.07 0.0234
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 1,438 -85 -5.58 239 0.0224
2025-05-14 2025-03-31 13F MARATHON PETE COM 56585A102 1,523 -28 -1.81 0 0.0226
2025-02-12 2024-12-31 13F MARATHON PETE COM 56585A102 1,551 -4 -0.26 0 0.0215
2024-11-13 2024-09-30 13F MARATHON PETE COM 56585A102 1,555 161 11.55 0 0.0248
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 1,394 0 0.00 0 0.0258
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 1,394 -40 -2.79 0 0.0286
2024-02-12 2023-12-31 13F MARATHON PETE COM 56585A102 1,434 -260 -15.35 0 0.0294
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 1,694 55 3.36 0 0.0348
2023-08-14 2023-06-30 13F MARATHON PETE COM 56585A102 1,639 -158 -8.79 0 0.0248
2023-05-15 2023-03-31 13F MARATHON PETE COM 56585A102 1,797 1 0.06 0 -100.00 0.0321
2023-02-14 2022-12-31 13F MARATHON PETE COM 56585A102 1,796 242 15.57 210 35.48 0.0299
2022-11-14 2022-09-30 13F MARATHON PETE COM 56585A102 1,554 -3,825 -71.11 155 -65.01 0.0228
2022-08-15 2022-06-30 13F MARATHON PETE COM 56585A102 5,379 5,379 443 0.0627
2020-11-12 2020-09-30 13F MARATHON PETE COM 56585A102 0 -289 -100.00 0 -100.00
2020-08-13 2020-06-30 13F MARATHON PETE COM 56585A102 289 289 11 0.0024
2019-11-12 2019-09-30 13F MARATHON PETE COM 56585A102 0 -2,533 -100.00 0 -100.00
2019-08-21 2019-06-30 13F MARATHON PETE COM 56585A102 2,533 2,533 142 0.0306
2019-05-14 2019-03-31 13F MARATHON PETE COM 56585A102 0 -364 -100.00 0 -100.00
2019-02-04 2018-12-31 13F MARATHON PETE COM 56585A102 364 183 101.10 22 46.67 0.0056
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 181 176 3,520.00 15 1,400.00 0.0032
2018-07-25 2018-06-30 13F MARATHON PETE COM 56585A102 5 5 1 0.0002
2016-04-21 2016-03-31 13F MARATHON PETE COM 56585A102 0 0 0 0.0000
2016-02-01 2015-12-31 13F MARATHON PETE COM 56585A102 0 0 0 0.0000
2015-10-20 2015-09-30 13F MARATHON PETE COM 56585A102 0 -8 -100.00 0 -100.00
2015-07-28 2015-06-30 13F MARATHON PETE COM 56585A102 8 -13 -61.90 1 -66.67 0.0001
2015-05-12 2015-03-31 13F MARATHON PETE COM 56585A102 21 21 3 0.0002
2015-02-03 2014-12-31 13F MARATHON PETE COM 56585A102 0 -1,143 -100.00 0 -100.00
2014-10-21 2014-09-30 13F MARATHON PETE COM 56585A102 1,143 91 8.65 97 16.87 0.0088
2014-07-14 2014-06-30 13F MARATHON PETE COM 56585A102 1,052 -4,340 -80.49 83 -82.34 0.0072
2014-04-15 2014-03-31 13F MARATHON PETE COM 56585A102 5,392 5,392 470 0.0467
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.