Key facts
- This page summarizes Molly R. Benson's Form 4 filing for Marathon Petroleum Corp (MPC).
- 7 reported transactions and 3 derivative rows are listed below.
- Accepted by SEC: 19 Aug 2026, 16:08.
Molly R. Benson - 17 Aug 2026 Form 4 Insider Report for Marathon Petroleum Corp (MPC)
- Reporting relationship
- Chief Legal Ofc & Corp Sec
- Issuer ticker
- MPC
- Reported as of
- 17 Aug 2026
- Net transaction value
- -$4,373,120
- SEC form
- 4
- Accepted by SEC
- 19 Aug 2026, 16:08:16 UTC
- Prior SEC filing
- 03 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Shane T. Pfleiderer, Attorney-in-Fact for Molly R. Benson
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Molly R. Benson filed Form 4 for Marathon Petroleum Corp (MPC) on 19 Aug 2026.
Change
- Previous filing in this sequence was filed on 03 Mar 2026.
- Current net transaction value: -$4,373,120.
Research use
- This tells you what this filing adds before you inspect full transaction and derivative tables.
- You can trace every row back to the original SEC filing document.
Evidence
Filed on Form 4
View source filing
Ownership activity is grounded in SEC Form 4 disclosures.
Reporting Owners (1)
CIK 0002005019
Primary reporting owner
Benson Molly R
- Relationship
- Chief Legal Ofc & Corp Sec
- Address
- C/O MARATHON PETROLEUM CORPORATION, 539 S. MAIN STREET, FINDLAY
- Signature
- /s/ Shane T. Pfleiderer, Attorney-in-Fact for Molly R. Benson
- Signature date
- 19 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MPC
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +7,196
- Change %
- +24%
- Price
- $47.73*
- Shares after
- 37,530
- Date
- 17 Aug 2026
- Ownership
- Direct
- Footnotes
- F1
MPC
transaction
Common Stock
Sale
- Transaction value
- $2,580,270
- Shares
- -7,196
- Change %
- -19%
- Price
- $358.57
- Shares after
- 30,334
- Date
- 17 Aug 2026
- Ownership
- Direct
- Footnotes
- F2
MPC
transaction
Common Stock
Options Exercise
- Transaction value
- Shares
- +5,000
- Change %
- +16%
- Price
- $47.73*
- Shares after
- 35,334
- Date
- 17 Aug 2026
- Ownership
- Direct
MPC
transaction
Common Stock
Sale
- Transaction value
- $1,792,850
- Shares
- -5,000
- Change %
- -14%
- Price
- $358.57
- Shares after
- 30,334
- Date
- 17 Aug 2026
- Ownership
- Direct
- Footnotes
- F2
MPC
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 88
- Date
- 17 Aug 2026
- Ownership
- By 401(k) Plan
- Footnotes
- F3
Reported derivative securities
Options, warrants, convertible securities, or similar derivative positions disclosed in the filing.
MPC
transaction
Derivative
Employee Stock Option (right to buy)
Options Exercise
- Transaction value
- Shares
- -7,196
- Change %
- -42%
- Price
- $0.000000*
- Shares after
- 10,000
- Date
- 17 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 7,196
- Exercise price
- $47.73
- Footnotes
- F4
MPC
transaction
Derivative
Employee Stock Option (right to buy)
Options Exercise
- Transaction value
- Shares
- -5,000
- Change %
- -50%
- Price
- $0.000000*
- Shares after
- 5,000
- Date
- 17 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 5,000
- Exercise price
- $47.73
- Footnotes
- F4
MPC
transaction
Derivative
Employee Stock Option (right to buy)
Options Exercise
- Transaction value
- Shares
- -5,000
- Change %
- -100%
- Price
- $0.000000*
- Shares after
- 0
- Date
- 17 Aug 2026
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
- 5,000
- Exercise price
- $47.73
- Footnotes
- F4
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Rule 10b5-1 trading plan
These transactions were reported as open-market trades under a Rule 10b5-1 plan. The plan lets an insider set trading instructions in advance, which can reduce the risk of trading while in possession of material nonpublic information.
Original filing language: transaction made pursuant to a contract, instruction, or written plan intended to satisfy Rule 10b5-1(c).
Explanation of responses 4 footnotes
Footnote F1
Includes 0.177747 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.
Footnote F2
The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the Reporting Person on May 15, 2026.
Footnote F3
Includes 0.736 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.
Footnote F4
This option, in the amount of 17,196, is exercisable as follows: 5,732 shares on March 1, 2021, 5,732 shares on March, 1, 2022 and 5,732 shares on March 1, 2023.
SEC remarks
Chief Legal Officer and Corporate Secretary