Marathon Petroleum officer sells 570 shares

Marathon Petroleum Corp (MPC) reported that officer Erin M. Brzezinski, Vice President and Controller, sold 570 shares of common stock on 2026-08-27 in a sale described as an open-market or private transaction at $362.79 per share.

Rhea-AI Filing Summary

Marathon Petroleum Corp (MPC) reported that officer Erin M. Brzezinski, Vice President and Controller, sold 570 shares of common stock on 2026-08-27 in a sale described as an open-market or private transaction at $362.79 per share. After this sale, Brzezinski directly held 1,576 common shares.

Insider Trade Summary

Net Seller: 570 shares

Net Sell 1 txn

Insider Brzezinski Erin M

Role VP and Controller

Sold 570 shs ($207K)

Type	Security	Shares	Price	Value
Sale	Common Stock	570	$362.79	$207K

Holdings After Transaction: Common Stock — 1,576 shares (Direct)

Key Figures

Shares sold: 570 shares of Common Stock Sale price per share: $362.79 per share Shares owned after transaction: 1,576 shares of Common Stock

3 metrics

Shares sold 570 shares of Common Stock Non-derivative sale on 2026-08-27

Sale price per share $362.79 per share Sale of 570 common shares on 2026-08-27

Shares owned after transaction 1,576 shares of Common Stock Direct ownership following the 2026-08-27 sale

Key Terms

Form 4, non-derivative, transaction code

3 terms

Form 4 regulatory

"The insider is reported on a Form 4 ownership filing"

Form 4 is a official document that company insiders, such as executives or major shareholders, file with regulators whenever they buy or sell company shares. It provides transparency about how those with inside knowledge are trading, helping investors see if insiders are confident in the company's prospects or may be selling for personal reasons. This information can influence investor decisions by revealing insiders' perspectives on the company's value.

non-derivative financial

"The reported transaction involved Common Stock classified as non-derivative"

transaction code regulatory

"The transaction used code S indicating a sale transaction"

FAQ

Who is the insider involved in the recent Form 4 transaction for MPC?

The insider is Erin M. Brzezinski, who serves as Vice President and Controller of Marathon Petroleum Corp. The Form 4 reports her ownership change in the company’s common stock.

How many MPC shares did Erin M. Brzezinski sell?

Erin M. Brzezinski sold 570 shares of Marathon Petroleum Corp common stock in the reported transaction.

At what price were the MPC shares sold by Erin M. Brzezinski?

The reported sale price was $362.79 per share for the 570 Marathon Petroleum Corp common shares sold on 2026-08-27.

What is Erin M. Brzezinski’s MPC share ownership after the transaction?

Following the sale, Erin M. Brzezinski directly owned 1,576 shares of Marathon Petroleum Corp common stock, as reported in the Form 4.

Was the MPC insider transaction made under a Rule 10b5-1 trading plan?

The filing’s Rule 10b5-1 checkbox is not checked (false), indicating the transaction was not affirmatively reported as made under a Rule 10b5-1 trading plan.

What type of security was involved in the MPC Form 4 filing?

The reported transaction involved Common Stock of Marathon Petroleum Corp, classified as a non-derivative security in the Form 4 data.

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

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Available on EDGAR 08/31/2026 - 04:11 PM Accepted by SEC EDGAR 08/31/2026 - 04:11 PM 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^*

Brzezinski Erin M

(Last) (First) (Middle)

C/O MARATHON PETROLEUM CORPORATION

539 S. MAIN STREET

(Street)

FINDLAY OHIO 45840

(City) (State) (Zip)

UNITED STATES

(Country)

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)
	VP and Controller

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
08/27/2026

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

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

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

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	08/27/2026		S		570	D	$362.79	1,576	D

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:

Remarks:

Vice President and Controller

	/s/ Molly R. Benson, Attorney-in-Fact for Erin M. Brzezinski	08/31/2026
	** 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.
* Form 4: SEC 1474 (03-26)