Marathon Petroleum officer reports 86-share stock disposition

Marathon Petroleum Corp reported an insider transaction by a senior executive.

Rhea-AI Filing Summary

Marathon Petroleum Corp reported an insider transaction by a senior executive. On 12/12/2025, the officer disposed of 86 shares of common stock in a transaction coded "F" at a reported price of $185.77 per share.

Following this activity, the officer beneficially owns 15,348 shares directly and 2,914.317 shares indirectly through a 401(k) plan. The indirect holdings include 64.431 shares acquired through dividend reinvestment and reflect the deduction of an administrative fee equal to 0.032 shares. The reporting person serves as Senior Vice President, Logistics and Storage of MPLX GP LLC, a subsidiary of Marathon Petroleum.

Insider Trade Summary

Exercise Price or Tax Liability: 86 shares

Exercise Price or Tax Liability 2 txns

Insider Lyon Shawn M

Role SVP Log & Storage, MPLX GP LLC

Type	Security	Shares	Price	Value
Exercise Price or Tax Liability	Common Stock	86	$185.77	$16K
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 15,348 shares (Direct); Common Stock — 2,914.317 shares (Indirect, By 401(k) Plan)

Footnotes (1)

1. F1. Includes 64.431 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 .032 shares.

FAQ

AI-generated questions and answers. How Rhea-AI works. Not financial advice.

What insider transaction at Marathon Petroleum (MPC) is disclosed here?

The filing shows a Marathon Petroleum Corp officer disposed of 86 shares of common stock on 12/12/2025 in a transaction coded "F" at a reported price of $185.77 per share.

How many Marathon Petroleum (MPC) shares does the officer own after this transaction?

After the reported transaction, the officer beneficially owns 15,348 shares of Marathon Petroleum common stock directly and 2,914.317 shares indirectly through a 401(k) plan.

What price is associated with the reported share disposition for MPC?

The 86 shares of Marathon Petroleum common stock reported as disposed of were priced at $185.77 per share in the transaction.

What is the reporting person’s role related to Marathon Petroleum (MPC)?

The reporting person is the Senior Vice President, Logistics and Storage of MPLX GP LLC, which is identified as a subsidiary of Marathon Petroleum Corp.

What does the explanation about dividend reinvestment mean for MPC share holdings?

The explanation notes that the indirect holdings include 64.431 shares acquired through dividend reinvestment and also reflect the deduction of an administrative fee equal to 0.032 shares.

How are the officer’s indirect Marathon Petroleum (MPC) holdings structured?

The indirect beneficial ownership of 2,914.317 shares is held through a 401(k) plan, as stated in the filing.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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Accepted by SEC EDGAR 12/16/2025 - 03:20 PM EST Learn about SEC filing dates

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

OMB APPROVAL

OMB Number:			3235-0287
Estimated average burden
hours per response:			0.5

Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

1. Name and Address of Reporting Person^*

Lyon Shawn M

(Last) (First) (Middle)

C/O MARATHON PETROLEUM CORPORATION

539 S. MAIN STREET

(Street)

FINDLAY OH 45840

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
Marathon Petroleum Corp [ MPC ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	SVP Log & Storage, MPLX GP LLC

3. Date of Earliest Transaction (Month/Day/Year)
12/12/2025

4. If Amendment, Date of Original Filed (Month/Day/Year)

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	12/12/2025		F		86	D	$185.77	15,348	D
Common Stock								2,914.317(1)	I	By 401(k) Plan

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

Explanation of Responses:

1. Includes 64.431 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 .032 shares.

Remarks:

The Reporting Person is the Senior Vice President, Logistics and Storage of MPLX GP LLC, a subsidiary of the Issuer.

	/s/ Molly R. Benson, Attorney-in-Fact for Shawn M. Lyon	12/16/2025
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.