Was the 727.742-share Marathon Petroleum (MPC) award an open-market purchase?

No, the 727.742 shares were reported under code A as a grant, award, or other acquisition at $0.0000 per share. A footnote clarifies this is Campbell’s annual 2026 equity retainer, indicating stock-based director compensation rather than an open-market buying transaction.

Marathon Petroleum (MPC) director Campbell receives 728-share 2026 equity retainer award

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)

Form Type

Rhea-AI Filing Summary

Marathon Petroleum director Jeffrey C. Campbell reported a routine equity compensation grant. He received 727.742 shares of Common Stock on a grant or award basis at $0.0000 per share as part of his annual 2026 equity retainer award. Following this grant, his directly held Marathon Petroleum shares totaled 2,580.647. Separately, an indirect holding of 6,090 shares is reported through the Campbell Living Trust u/a/d 2/11/2000, which includes 37.462 shares acquired via dividend reinvestment and previously unreported under Rule 16a-11. No derivative securities are shown, so this filing mainly reflects ongoing board compensation and updated share ownership.

Insider Trade Summary

2 transactions reported

Mixed 2 txns

Insider CAMPBELL JEFFREY C

Role null

Type	Security	Shares	Price	Value
Grant/Award	Common Stock	727.742	$0.00	--
holding	Common Stock	--	--	--

Holdings After Transaction: Common Stock — 2,580.647 shares (Direct, null); Common Stock — 6,090 shares (Indirect, Campbell Living Trust u/a/d 2/11/2000)

Footnotes (1)

Represents the reporting person's annual 2026 equity retainer award. Includes 37.462 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

Key Figures

Equity retainer award: 727.742 shares Grant price per share: $0.0000/share Direct holdings after grant: 2,580.647 shares +2 more

5 metrics

Equity retainer award 727.742 shares Annual 2026 equity retainer award, code A grant

Grant price per share $0.0000/share Price for 727.742-share equity retainer award

Direct holdings after grant 2,580.647 shares Marathon Petroleum common stock held directly by Campbell

Indirect trust holdings 6,090 shares Held via Campbell Living Trust u/a/d 2/11/2000

Dividend reinvestment addition 37.462 shares Shares acquired via dividend reinvestment and newly reported

Key Terms

annual 2026 equity retainer award, dividend reinvestment, Rule 16a-11, Grant, award, or other acquisition, +1 more

5 terms

annual 2026 equity retainer award financial

"Represents the reporting person's annual 2026 equity retainer award."

dividend reinvestment financial

"Includes 37.462 shares acquired pursuant to dividend reinvestment and not previously reported"

Dividend reinvestment is when the money earned from a company's profit sharing, called dividends, is automatically used to buy more shares of that company instead of being received as cash. This process helps investors grow their holdings over time without extra effort, much like using earned interest to buy more of a savings account. It encourages long-term investment growth by continuously increasing the amount of shares owned.

Rule 16a-11 regulatory

"and not previously reported pursuant to Rule 16a-11."

Grant, award, or other acquisition financial

"transaction_code_description: Grant, award, or other acquisition"

Campbell Living Trust u/a/d 2/11/2000 financial

"nature_of_ownership: Campbell Living Trust u/a/d 2/11/2000"

Form 4 Insider Transactions: What Each Field Means →

05/04/2026 - 04:47 PM

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^*

CAMPBELL JEFFREY C

(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)

X	Director	10% Owner
	Officer (give title below)	Other (specify below)

2a. Foreign Trading Symbol

3. Date of Earliest Transaction (Month/Day/Year)
04/30/2026

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	04/30/2026		A		727.742⁽¹⁾	A	$0	2,580.647⁽²⁾	D
Common Stock								6,090	I	Campbell Living Trust u/a/d 2/11/2000

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)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

1. Represents the reporting person's annual 2026 equity retainer award.

2. Includes 37.462 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

	/s/ Molly R. Benson, Attorney-in-Fact for Jeffrey C. Campbell	05/04/2026
	** 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)

Source: View Original Filing on SEC EDGAR

FAQ

What did Marathon Petroleum (MPC) director Jeffrey C. Campbell report in this Form 4?

Jeffrey C. Campbell reported receiving 727.742 Marathon Petroleum common shares as his annual 2026 equity retainer award. The filing also updates his direct and indirect share ownership, including trust-held shares and dividend reinvestment additions, with no open-market buying or selling activity disclosed.

How many Marathon Petroleum (MPC) shares did Campbell receive as compensation?

Campbell received 727.742 Marathon Petroleum common shares at a price of $0.0000 per share. The footnote explains this represents his annual 2026 equity retainer award for board service, reflecting stock-based compensation rather than a cash-paid or market-purchased position.

What are Jeffrey C. Campbell’s direct Marathon Petroleum (MPC) holdings after the award?

After the 727.742-share award, Campbell’s directly held Marathon Petroleum common stock totals 2,580.647 shares. This figure reflects his position held in his own name, separate from any shares reported as indirectly owned through a trust arrangement or other entities.

What indirect Marathon Petroleum (MPC) holdings are reported for Campbell?

The filing reports 6,090 Marathon Petroleum shares held indirectly through the Campbell Living Trust u/a/d 2/11/2000. A footnote adds that this total includes 37.462 shares acquired through dividend reinvestment, which had not previously been reported under Rule 16a-11 requirements.

Does this Marathon Petroleum (MPC) Form 4 show any stock option exercises or derivative trades?

No, the Form 4 shows no derivative securities or option exercises for Campbell. The transactions consist of a stock grant of 727.742 common shares as an equity retainer and a holding entry for 6,090 indirectly owned common shares, mainly updating reported ownership levels.