Marathon Petroleum (MPC) EVP Gregory Floerke reports 85-share sale, 30,108 shares owned

Rhea-AI Filing Summary

Marathon Petroleum Corp officer Gregory S. Floerke reported an insider transaction and updated his share holdings. On 12/12/2025, a Form 4 entry in Table I shows a disposition of 85 shares of common stock in a transaction coded “F” at a price of $185.77 per share. After this transaction, he beneficially owned 30,108 common shares directly.

The filing also reports indirect ownership of 726.235 common shares held through a 401(k) plan. According to the footnote, this indirect amount includes contributions and administrative fees totaling 32.973 shares that had not been reported previously, and 15.822 shares acquired through dividend reinvestment that had also not been reported previously. Floerke is identified as Executive Vice President and Chief Operating Officer of MPLX GP LLC, a subsidiary of Marathon Petroleum.

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

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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^*

Floerke Gregory Scott

(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)
	Ex VP & COO, 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		85	D	$185.77	30,108	D
Common Stock								726.235(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 contributions and administrative fees totaling the amount of 32.973 shares not previously reported pursuant to Rule 16a3(f)(1)(i)(B). Also reflects 15.822 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

Remarks:

The Reporting Person is the Executive Vice President and Chief Operating Officer of MPLX GP LLC, a subsidiary of the Issuer.

	/s/ Molly R. Benson, Attorney-in-Fact for Gregory S. Floerke	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).
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FAQ

What insider transaction did MPC executive Gregory S. Floerke report?

The filing shows that on 12/12/2025, Gregory S. Floerke disposed of 85 shares of Marathon Petroleum Corp (MPC) common stock in a transaction coded “F” at $185.77 per share.

How many Marathon Petroleum (MPC) shares does Gregory S. Floerke own after this transaction?

After the reported transaction, Gregory S. Floerke beneficially owned 30,108 Marathon Petroleum common shares directly and 726.235 common shares indirectly through a 401(k) plan.

What changes were reported in Gregory S. Floerke’s 401(k) holdings of MPC stock?

The indirect 401(k) holdings of 726.235 Marathon Petroleum shares now include 32.973 shares from contributions and administrative fees and 15.822 shares acquired through dividend reinvestment, which had not been reported previously.

What does the transaction code indicate in Gregory S. Floerke’s MPC Form 4?

Table I lists the 12/12/2025 Marathon Petroleum common stock transaction with the Form 4 transaction code “F” and a disposition of 85 shares at $185.77 per share.

What is Gregory S. Floerke’s role in relation to Marathon Petroleum (MPC)?

The filing states that Gregory S. Floerke is the Executive Vice President and Chief Operating Officer of MPLX GP LLC, which is identified as a subsidiary of Marathon Petroleum Corp.

Is the Form 4 for Marathon Petroleum (MPC) filed by one or multiple reporting persons?

The document indicates that the Form 4 is filed by one reporting person, referring to Gregory S. Floerke.