Marathon Petroleum (NYSE: MPC) CCO sells 2,847 common shares

Rhea-AI Filing Summary

Marathon Petroleum Chief Commercial Officer Ricky D. Hessling reported open-market sales of 2,847 shares of common stock on March 11–12, 2026, at prices ranging from about $224.51 to $230 per share. After these transactions, he directly holds 9,151 shares, plus a small additional 401(k) plan position. One of the reported prices is a weighted average for multiple trades, and the indirect holding includes a minor amount acquired through dividend reinvestment.

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

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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^*

Hessling Ricky D.

(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)
	Chief Commercial Officer

3. Date of Earliest Transaction (Month/Day/Year)
03/11/2026

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	03/11/2026		S		1,485	D	$224.51(1)	10,513	D
Common Stock	03/11/2026		S		325	D	$226	10,188	D
Common Stock	03/12/2026		S		478	D	$228	9,710	D
Common Stock	03/12/2026		S		559	D	$230	9,151	D
Common Stock								0.274(2)	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. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $224.51 to $224.52, inclusive. The reporting person undertakes to provide to Marathon Petroleum Corporation, any security holder of Marathon Petroleum Corporation, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in footnote 1 to this Form 4.

2. Includes 0.001 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

Remarks:

Chief Commercial Officer

	/s/ Molly R. Benson, Attorney-in-Fact for Ricky D. Hessling	03/13/2026
	** 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.

FAQ

What insider transaction did MPC executive Ricky D. Hessling report?

Ricky D. Hessling reported selling 2,847 shares of Marathon Petroleum common stock in open-market transactions. The sales occurred on March 11–12, 2026, at prices between about $224.51 and $230 per share, as disclosed in his Form 4 filing.

At what prices did MPC’s Chief Commercial Officer sell his shares?

The disclosed sales were executed at prices ranging from about $224.51 to $230 per Marathon Petroleum share. One transaction used a weighted average price between $224.51 and $224.52, reflecting multiple individual trades within that narrow range.

How many Marathon Petroleum shares does Ricky D. Hessling still own after the sales?

Following the reported sales, Ricky D. Hessling directly owns 9,151 Marathon Petroleum common shares. He also has a small additional indirect holding of 0.274 shares through a 401(k) plan, which includes 0.001 shares acquired via dividend reinvestment.

Were Ricky D. Hessling’s MPC share sales open-market transactions?

Yes. The Form 4 identifies each sale with transaction code “S” and describes them as open-market or private sale transactions. The filing also notes a weighted average price for one group of trades, reflecting multiple executions within a tight price range.

Does the MPC Form 4 mention dividend reinvestment for Ricky D. Hessling?

Yes. A footnote explains that his indirect 401(k) holdings include 0.001 Marathon Petroleum shares acquired through dividend reinvestment. This tiny amount had not been previously reported and is now included in the disclosed indirect position.