Was the Kim K.W. Rucker share transaction in MPC stock a market purchase or sale?

The transaction was not a market purchase or sale. It was a Form 4 code "A" grant, meaning shares were awarded as compensation, with 727.742 Marathon Petroleum common shares granted at no stated cash price per share.

What is the purpose of the 727.742-share award to Kim K.W. Rucker at MPC?

The 727.742-share award represents Kim K.W. Rucker’s annual 2026 equity retainer as a director of Marathon Petroleum. This type of grant compensates board service using company stock rather than cash, aligning director interests with shareholder value.

Marathon Petroleum director receives equity grant

Rucker Kim K.W. reported acquisition or exercise transactions in this Form 4 filing.

Filing Impact

(Neutral)

Filing Sentiment

(Neutral)How Sentiment works

Sentiment and the balance of points

Rhea-AI Sentiment reads the wording of the document, how positive or negative its language is on a 1 to 5 scale. The balance of points shown with the takes weighs what the document actually discloses, so the two can disagree, for example when a trial that missed its main goal is described in upbeat language.

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Form Type

Rhea-AI Filing Summary

Rucker Kim K.W. reported acquisition or exercise transactions in this Form 4 filing.

Marathon Petroleum Corp director Kim K.W. Rucker received an equity award of 727.742 shares of Common Stock on April 30, 2026. The shares were granted at no cash cost as the director’s annual 2026 equity retainer award. After this grant and previously unreported dividend reinvestment, Rucker directly holds 19,955.346 common shares.

Insider Trade Summary

Grant/Award: 727.742 shares

Grant/Award 1 txn

Insider Rucker Kim K.W.

Role Director

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

Holdings After Transaction: Common Stock — 19,955.346 shares (Direct)

Footnotes (2)

F1. Represents the reporting person's annual 2026 equity retainer award.
F2. Includes 283.333 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

Key Figures

Equity grant: 727.742 shares Post-transaction holdings: 19,955.346 shares Dividend reinvestment shares: 283.333 shares

3 metrics

Equity grant 727.742 shares Annual 2026 equity retainer award granted April 30, 2026

Post-transaction holdings 19,955.346 shares Common Stock directly held after the award

Dividend reinvestment shares 283.333 shares Shares acquired via dividend reinvestment, now included in holdings

Key Terms

Form 4, equity retainer award, dividend reinvestment, Grant, award, or other acquisition

4 terms

Form 4 regulatory

"According to the Form 4 filing, Rucker directly holds 19,955.346 common shares"

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.

equity retainer award financial

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

dividend reinvestment financial

"Includes 283.333 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.

Grant, award, or other acquisition regulatory

"transaction_code_description: Grant, award, or other acquisition"

FAQ

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

What insider transaction did Marathon Petroleum (MPC) report for Kim K.W. Rucker?

Marathon Petroleum reported that director Kim K.W. Rucker received a grant of 727.742 shares of Common Stock as her annual 2026 equity retainer award, increasing her directly held position to 19,955.346 shares according to the Form 4 filing.

How many Marathon Petroleum (MPC) shares does Kim K.W. Rucker hold after this Form 4?

After the April 30, 2026 equity grant and the inclusion of previously unreported dividend reinvestment shares, Kim K.W. Rucker directly holds 19,955.346 Marathon Petroleum common shares, as disclosed in the Form 4 total shares following the transaction.

What does the dividend reinvestment footnote mean in the MPC Form 4 for Kim K.W. Rucker?

The filing notes that Rucker’s holdings include 283.333 shares acquired through dividend reinvestment that were not previously reported. This indicates some dividends on existing shares were automatically reinvested into additional Marathon Petroleum shares, modestly increasing her direct ownership.

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

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Accepted by SEC EDGAR 05/04/2026 - 04:55 PM EDT

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^*

Rucker Kim K.W.

(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	19,955.346⁽²⁾	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)
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 283.333 shares acquired pursuant to dividend reinvestment and not previously reported pursuant to Rule 16a-11.

	/s/ Molly R. Benson, Attorney-in-Fact for Kim K.W. Rucker	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