Key facts
- This page summarizes Shawn M. Lyon's Form 4 filing for Marathon Petroleum Corp (MPC).
- 1 reported transaction and 0 derivative rows are listed below.
- Accepted by SEC: 17 Aug 2026, 17:14.
Shawn M. Lyon - 13 Aug 2026 Form 4 Insider Report for Marathon Petroleum Corp (MPC)
- Reporting relationship
- SVP Log & Storage, MPLX GP LLC
- Issuer ticker
- MPC
- Reported as of
- 13 Aug 2026
- Net transaction value
- -$875,000
- SEC form
- 4
- Accepted by SEC
- 17 Aug 2026, 17:14:16 UTC
- Prior SEC filing
- 13 Mar 2026
- Source filing
- View source filing
- Reporting owner signature
- /s/ Molly R. Benson, Attorney-in-Fact for Shawn M. Lyon
Source evidence
Original filing metadata and source links for verification.
4 source fields
Reporting owner
1 detail
Key filing fact
Shawn M. Lyon filed Form 4 for Marathon Petroleum Corp (MPC) on 17 Aug 2026.
Change
- Previous filing in this sequence was filed on 13 Mar 2026.
- Current net transaction value: -$875,000.
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 0001948454
Primary reporting owner
Lyon Shawn M
- Relationship
- SVP Log & Storage, MPLX GP LLC
- Address
- C/O MARATHON PETROLEUM CORPORATION, 539 S. MAIN STREET, FINDLAY
- Signature
- /s/ Molly R. Benson, Attorney-in-Fact for Shawn M. Lyon
- Signature date
- 17 Aug 2026
Reported non-derivative transactions
Shares, units, or other non-derivative securities reported in this filing.
MPC
transaction
Common Stock
Sale
- Transaction value
- $875,000
- Shares
- -2,500
- Change %
- -17%
- Price
- $350.00
- Shares after
- 12,619
- Date
- 13 Aug 2026
- Ownership
- Direct
MPC
holding
Common Stock
No transaction description listed
- Transaction value
- Shares
- Change %
- Price
- Shares after
- 2,939
- Date
- 13 Aug 2026
- Ownership
- By 401(k) Plan
- Footnotes
- F1
* marks a reported price that did not pass the local price check.
Additional SEC filing notes
Filing notes and footnotes
Explanation of responses 1 footnote
Footnote F1
Includes 11.168 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11. Also reflects the deduction of an administrative fee in the amount of 0.018 shares.
SEC remarks
The Reporting Person is the Senior Vice President, Logistics and Storage of MPLX GP LLC, a subsidiary of the Issuer.