Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionBrinker Capital Investments, LLC
Latest Disclosed Ownership16,754 shares
Latest Disclosed Value $ 4,090,981
Brinker Capital Investments, LLC ownership in MPC / Marathon Petroleum Corporation

On May 13, 2026 - Brinker Capital Investments, LLC filed a 13F-HR form disclosing ownership of 16,754 shares of Marathon Petroleum Corporation (MX:MPC) valued at $4,090,981 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 19,359 shares of Marathon Petroleum Corporation. This represents a change in shares of -13.46% during the quarter.

Brinker Capital Investments, LLC has a history of taking positions in derivatives of the underlying security (MPC) in the form of stock options. The firm currently holds call options representing 1 of underlying shares valued at $244 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

MX:MPC / Marathon Petroleum Corporation Historical Put/Call Ratio
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)
2026-05-13 2026-03-31 13F MARATHON PETE COM 56585A102 16,754 -2,605 -13.46 4,091 29.92 0.0349
2026-02-12 2025-12-31 13F MARATHON PETE COM 56585A102 19,359 -445 -2.25 3,148 -17.51 0.0231
2025-11-12 2025-09-30 13F MARATHON PETE COM 56585A102 19,804 -396 -1.96 3,817 13.74 0.0296
2025-08-27 2025-06-30 13F/A-1 MARATHON PETE COM 56585A102 20,200 -973 -4.60 3,355 8.79 0.0286
2025-08-14 2025-06-30 13F MARATHON PETE COM 56585A102 20,200 -973 3,355 0.0288
2025-08-01 2025-03-31 13F MARATHON PETE COM 56585A102 21,173 -255 -1.19 3,085 3.18 0.0302
2025-08-01 2024-12-31 13F MARATHON PETE COM 56585A102 21,428 839 4.07 2,989 -10.88 0.0298
2025-07-31 2024-09-30 13F MARATHON PETE COM 56585A102 20,589 -915 -4.26 3,354 -10.08 0.0334
2025-07-31 2024-06-30 13F MARATHON PETE COM 56585A102 21,504 619 2.96 3,731 -11.36 0.0394
2025-07-31 2024-03-31 13F MARATHON PETE COM 56585A102 20,885 -950 -4.35 4,208 23.37 0.0450
2025-07-31 2023-12-31 13F MARATHON PETE COM 56585A102 21,835 1,109 5.35 3,412 8.77 0.0396
2025-07-31 2023-09-30 13F MARATHON PETE COM 56585A102 20,726 1,879 9.97 3,137 42.74 0.0379
2025-07-31 2023-06-30 13F MARATHON PETE COM 56585A102 18,847 -1,280 -6.36 2,198 -19.02 0.0234
2025-07-31 2023-03-31 13F MARATHON PETE COM 56585A102 20,127 9,532 89.97 2,714 120.03 0.0335
2023-02-06 2022-12-31 13F MARATHON PETE COM 56585A102 10,595 -347 -3.17 1,233 13.43 0.0245
2022-11-01 2022-09-30 13F MARATHON PETE COM 56585A102 10,942 226 2.11 1,087 23.38 0.0225
2022-07-18 2022-06-30 13F MARATHON PETE COM 56585A102 10,716 99 0.93 881 -2.97 0.0167
2022-05-16 2022-03-31 13F MARATHON PETE COM 56585A102 10,617 375 3.66 908 38.63 0.0140
2022-02-08 2021-12-31 13F MARATHON PETE COM 56585A102 10,242 3,961 63.06 655 72.82 0.0095
2021-11-08 2021-09-30 13F MARATHON PETE COM 56585A102 6,281 0 0.00 379 0.00 0.0060
2021-08-03 2021-06-30 13F MARATHON PETE COM 56585A102 6,281 1,480 30.83 379 47.47 0.0050
2021-05-12 2021-03-31 13F MARATHON PETE COM 56585A102 4,801 -4,451 -48.11 257 -32.90 0.0039
2021-02-16 2020-12-31 13F MARATHON PETE COM 56585A102 9,252 9,252 383 0.0059
2020-05-13 2020-03-31 13F MARATHON PETE COM 56585A102 0 -45 -100.00 0 -100.00
2020-02-06 2019-12-31 13F MARATHON PETE COM 56585A102 45 0 0.00 3 0.00 0.0001
2019-11-14 2019-09-30 13F MARATHON PETE COM 56585A102 45 0 0.00 3 0.00 0.0001
2019-08-14 2019-06-30 13F MARATHON PETE COM 56585A102 45 0 0.00 3 0.00 0.0001
2019-05-14 2019-03-31 13F MARATHON PETE COM 56585A102 45 0 0.00 3 0.00 0.0001
2019-02-13 2018-12-31 13F MARATHON PETE COM 56585A102 45 0 0.00 3 -25.00 0.0001
2018-11-13 2018-09-30 13F MARATHON PETE COM 56585A102 45 45 4 0.0001
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-13 2026-03-31 13F MARATHON PETE COM Call 1 0 n/a n/a n/a
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.