Marathon Petroleum: Insider Michael J. Hennigan Files Proposed Sale

TL;DR

**Insider Michael J. Hennigan is planning to sell MPC shares.**

AI Summary

This 144 filing indicates that Michael J. Hennigan, a reporting person, intends to sell securities of Marathon Petroleum Corp. (MPC). While the filing itself doesn't specify the number of shares or dollar amount, it signals a proposed insider sale. This matters to investors because insider selling can sometimes suggest that company executives believe the stock may be fully valued or that they are diversifying their personal holdings, which could be a bearish signal for current or prospective shareholders.

Why It Matters

This filing alerts investors to a potential upcoming sale of Marathon Petroleum shares by an insider, which could influence market sentiment and the stock price.

Risk Assessment

Risk Level: medium — Insider selling can be a red flag, but without knowing the quantity or reason, the immediate impact is uncertain.

Analyst Insight

A smart investor would monitor subsequent filings (like Form 4) to see the actual sale details (number of shares, price) and consider if this insider sale aligns with their own investment thesis for MPC.

Key Players & Entities

• Michael J. Hennigan (person) — Reporting person proposing to sell securities
• Marathon Petroleum Corp. (company) — Subject company whose securities are being proposed for sale
• 0001352283 (person) — CIK for Michael J. Hennigan
• 0001510295 (company) — CIK for Marathon Petroleum Corp.
• 2026-03-24 (date) — Filing Date and Accepted Date

FAQ

Filing Documents

• primary_doc.html (144)
• primary_doc.xml (144) — 6KB
• 0001959173-26-002587.txt ( ) — 8KB

From the Filing

Form 144 Filer Information UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 144 NOTICE OF PROPOSED SALE OF SECURITIES PURSUANT TO RULE 144 UNDER THE SECURITIES ACT OF 1933 FORM 144 144: Filer Information Is this a LIVE or TEST Filing? LIVE TEST Submission Contact Information Name Phone E-Mail Address 144: Issuer Information Name of Issuer Marathon Petroleum Corp Address of Issuer 539 SOUTH MAIN STREET FINDLAY OHIO 45840-3229 Phone 419-422-2121 Name of Person for Whose Account the Securities are To Be Sold Hennigan Michael J See the definition of "person" in paragraph (a) of Rule 144. Information is to be given not only as to the person for whose account the securities are to be sold but also as to all other persons included in that definition. In addition, information shall be given as to sales by all persons whose sales are required by paragraph (e) of Rule 144 to be aggregated with sales for the account of the person filing this notice. Relationship to Issuer Former Director 144: Securities Information Title of the Class of Securities To Be Sold Name and Address of the Broker Number of Shares or Other Units To Be Sold Aggregate Market Value Number of Shares or Other Units Outstanding Approximate Date of Sale Name the Securities Exchange Common Fidelity Brokerage Services LLC 900 Salem Street Smithfield � RI � 02917 25000 6056491.32 294740164 03/24/2026 NYSE Furnish the following information with respect to the acquisition of the securities to be sold and with respect to the payment of all or any part of the purchase price or other consideration therefor: 144: Securities To Be Sold Title of the Class Date you Acquired Nature of Acquisition Transaction Name of Person from Whom Acquired Is this a Gift? Date Donor Acquired Amount of Securities Acquired Date of Payment Nature of Payment * Common 03/01/2023 Restricted Stock Vesting Issuer 5599 03/01/2023 Compensation Common 03/17/2023 Restricted Stock Vesting Issuer 19401 03/17/2023 Compensation * If the securities were purchased and full payment therefor was not made in cash at the time of purchase, explain in the table or in a note thereto the nature of the consideration given. If the consideration consisted of any note or other obligation, or if payment was made in installments describe the arrangement and state when the note or other obligation was discharged in full or the last installment paid. Furnish the following information as to all securities of the issuer sold during the past 3 months by the person for whose account the securities are to be sold. 144: Securities Sold During The Past 3 Months Name and Address of Seller Title of Securities Sold Date of Sale Amount of Securities Sold Gross Proceeds Michael J. Hennigan 539 South Main Street Findlay � OH � 45840-3229 Common 02/06/2026 25000 5067712.00 Michael J. Hennigan 539 South Main Street Findlay � OH � 45840-3229 Common 02/26/2026 25000 5026648.36 Michael J. Hennigan 539 South Main Street Findlay � OH � 45840-3229 Common 03/02/2026 25000 5178547.43 Michael J. Hennigan 539 South Main Street Findlay � OH � 45840-3229 Common 03/06/2026 25000 5474652.59 Michael J. Hennigan 539 South Main Street Findlay � OH � 45840-3229 Common 03/19/2026 25000 5984846.75 144: Remarks and Signature Remarks Date of Notice 03/24/2026 ATTENTION: The person for whose account the securities to which this notice relates are to be sold hereby represents by signing this notice that he does not know any material adverse information in regard to the current and prospective operations of the Issuer of the securities to be sold which has not been publicly disclosed. If such person has adopted a written trading plan or given trading instructions to satisfy Rule 10b5-1 under the Exchange Act, by signing the form and indicating the date that the plan was adopted or the instruction given, that person makes such representation as of the plan adoption or instruction date. Signature /s/ Jared Cook, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Michael J. Hennigan ATTENTION: Intentional misstatements or omission of facts constitute Federal Criminal Violations (See 18 U.S.C. 1001)

View Full Filing

View this 144 filing on SEC EDGAR