Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionZacks Investment Management
Latest Disclosed Ownership977 shares
Latest Disclosed Value $ 238,605
Zacks Investment Management ownership in MPC / Marathon Petroleum Corporation

On May 14, 2026 - Zacks Investment Management filed a 13F-HR form disclosing ownership of 977 shares of Marathon Petroleum Corporation (MX:MPC) valued at $238,605 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2025 disclosing 0 shares of Marathon Petroleum Corporation.

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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F MARATHON PETE COM 56585A102 977 977 239 0.0019
2025-02-13 2024-12-31 13F MARATHON PETE COM 56585A102 0 -1,825 -100.00 0 -100.00
2024-11-14 2024-09-30 13F MARATHON PETE COM 56585A102 1,825 402 28.25 297 20.73 0.0026
2024-08-14 2024-06-30 13F MARATHON PETE COM 56585A102 1,423 0 0.00 247 -13.99 0.0028
2024-05-15 2024-03-31 13F MARATHON PETE COM 56585A102 1,423 -671 -32.04 287 -7.74 0.0031
2024-02-14 2023-12-31 13F MARATHON PETE COM 56585A102 2,094 359 20.69 311 18.32 0.0038
2023-11-14 2023-09-30 13F MARATHON PETE COM 56585A102 1,735 0 0.00 263 29.70 0.0034
2023-08-15 2023-06-30 13F/A-1 MARATHON PETE COM 56585A102 1,735 1,735 202 0.0025
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 0 -24,487 -100.00 0 -100.00
2019-05-15 2019-03-31 13F MARATHON PETE COM 56585A102 24,487 3,700 17.80 1,466 19.48 0.0314
2019-02-14 2018-12-31 13F MARATHON PETE COM 56585A102 20,787 -1,024 -4.69 1,227 -29.64 0.0296
2018-11-14 2018-09-30 13F MARATHON PETE COM 56585A102 21,811 -436 -1.96 1,744 11.72 0.0364
2018-08-14 2018-06-30 13F MARATHON PETE COM 56585A102 22,247 -541,393 -96.05 1,561 -96.21 0.0340
2018-05-14 2018-03-31 13F MARATHON PETE COM 56585A102 563,640 22,141 4.09 41,208 15.34 0.9151
2018-02-14 2017-12-31 13F MARATHON PETE COM 56585A102 541,499 9,647 1.81 35,728 19.79 0.7790
2017-11-14 2017-09-30 13F MARATHON PETE COM 56585A102 531,852 7,612 1.45 29,826 8.72 0.6984
2017-08-14 2017-06-30 13F MARATHON PETE COM 56585A102 524,240 11,284 2.20 27,433 5.82 0.6794
2017-05-15 2017-03-31 13F MARATHON PETE COM 56585A102 512,956 58,038 12.76 25,925 13.18 0.6594
2017-02-13 2016-12-31 13F MARATHON PETE COM 56585A102 454,918 -12,357 -2.64 22,905 20.76 0.6574
2016-11-14 2016-09-30 13F MARATHON PETE COM 56585A102 467,275 37,538 8.74 18,967 16.27 0.5365
2016-08-15 2016-06-30 13F MARATHON PETE COM 56585A102 429,737 14,294 3.44 16,313 5.61 0.4975
2016-05-12 2016-03-31 13F MARATHON PETE COM 56585A102 415,443 415,443 2,534.22 15,446 1,277.88 0.4900
2013-11-14 2013-09-30 13F/A-1 MARATHON PETE COM 56585A102 0 -15,771 -100.00 0 -100.00
2013-08-13 2013-06-30 13F MARATHON PETE COM 56585A102 15,771 15,771 1,121 0.0514
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.