Marathon Petroleum Corporation
MX ˙ BMV ˙ US56585A1025
SecurityMX:MPC / Marathon Petroleum Corporation
InstitutionKovack Advisors, Inc.
Latest Disclosed Ownership5,832 shares
Latest Disclosed Value $ 1,407,482
Kovack Advisors, Inc. ownership in MPC / Marathon Petroleum Corporation

On May 12, 2026 - Kovack Advisors, Inc. filed a 13F-HR form disclosing ownership of 5,832 shares of Marathon Petroleum Corporation (MX:MPC) valued at $1,407,482 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on February 17, 2026 disclosing 5,148 shares of Marathon Petroleum Corporation. This represents a change in shares of 13.29% during the quarter.

Kovack Advisors, Inc. 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 0 of underlying shares valued at $0 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)
2026-05-12 2026-03-31 13F MARATHON PETE COM 56585A102 5,832 684 13.29 1,407 68.10 0.0751
2026-02-17 2025-12-31 13F/A-1 MARATHON PETE COM 56585A102 5,148 2,295 80.44 837 52.46 0.0389
2026-02-12 2025-12-31 13F MARATHON PETE COM 56585A102 5,147 2,294 487 0.0373
2025-11-10 2025-09-30 13F MARATHON PETE COM 56585A102 2,853 21 0.74 550 16.81 0.0518
2025-08-04 2025-06-30 13F MARATHON PETE COM 56585A102 2,832 -692 -19.64 470 -8.38 0.0461
2025-05-06 2025-03-31 13F MARATHON PETE COM 56585A102 3,524 124 3.65 513 8.23 0.0544
2025-02-05 2024-12-31 13F MARATHON PETE COM 56585A102 3,400 329 10.71 474 -5.20 0.0466
2024-11-05 2024-09-30 13F MARATHON PETE COM 56585A102 3,071 21 0.69 500 -5.48 0.0530
2024-08-05 2024-06-30 13F MARATHON PETE COM 56585A102 3,050 -300 -8.96 529 -21.51 0.0582
2024-04-19 2024-03-31 13F MARATHON PETE COM 56585A102 3,350 -1,779 -34.69 675 -11.32 0.0817
2024-02-02 2023-12-31 13F MARATHON PETE COM 56585A102 5,129 475 10.21 761 7.95 0.0904
2023-10-19 2023-09-30 13F MARATHON PETE COM 56585A102 4,654 -522 -10.09 704 16.75 0.0982
2023-07-21 2023-06-30 13F MARATHON PETE COM 56585A102 5,176 -419 -7.49 604 -20.03 0.0773
2023-04-21 2023-03-31 13F MARATHON PETE COM 56585A102 5,595 848 17.86 754 36.59 0.1028
2023-02-22 2022-12-31 13F MARATHON PETROLEUM ORD ORD 56585A102 4,747 890 23.07 553 44.13 0.0808
2022-11-14 2022-09-30 13F MARATHON PETROLEUM ORD ORD 56585A102 3,857 -644 -14.31 383 3.51 0.0563
2022-08-10 2022-06-30 13F MARATHON PETROLEUM ORD ORD 56585A102 4,501 59 1.33 370 -2.37 0.0488
2022-05-16 2022-03-31 13F MARATHON PETROLEUM ORD ORD 56585A102 4,442 838 23.25 379 64.07 0.0389
2022-01-18 2021-12-31 13F MARATHON PETROLEUM ORD ORD 56585A102 3,604 -1,328 -26.93 231 -24.26 0.0223
2021-11-03 2021-09-30 13F MARATHON PETROLEUM ORD ORD 56585A102 4,932 505 11.41 305 14.23 0.0331
2021-07-29 2021-06-30 13F MARATHON PETROLEUM ORD ORD 56585A102 4,427 4,427 267 0.0304
2020-04-30 2020-03-31 13F MARATHON PETROLEUM ORD ORD 56585A102 0 -3,876 -100.00 0 -100.00
2020-01-29 2019-12-31 13F MARATHON PETROLEUM ORD ORD 56585A102 3,876 -540 -12.23 234 -12.69 0.0418
2019-10-31 2019-09-30 13F MARATHON PETROLEUM ORD ORD 56585A102 4,416 -4,840 -52.29 268 -48.16 0.0550
2019-08-14 2019-06-30 13F MARATHON PETE CORP COM COM 56585A102 9,256 710 8.31 517 1.17 0.1182
2019-05-03 2019-03-31 13F MARATHON PETE CORP COM COM 56585A102 8,546 -145 -1.67 511 -0.39 0.1274
2019-02-06 2018-12-31 13F MARATHON PETE CORP COM COM 56585A102 8,691 -1,312 -13.12 513 -35.87 0.1500
2018-10-09 2018-09-30 13F MARATHON PETE CORP COM COM 56585A102 10,003 1,951 24.23 800 41.59 0.2063
2018-08-01 2018-06-30 13F MARATHON PETE CORP COM COM 56585A102 8,052 2,203 37.66 565 32.01 0.1578
2018-05-15 2018-03-31 13F MARATHON PETE CORP COM COM 56585A102 5,849 5,849 428 0.1074
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
(%)
2019-08-14 2019-06-30 13F MARATHON PETROLEUM CALL JUL00060000 COM Call 0 -100.00 0 n/a n/a n/a
2019-05-03 2019-03-31 13F MARATHON PETROLEUM CALL JUL00060000 COM Call 2 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.