3M (NYSE: MMM) executive corrects Form 4 with updated tax share count

Rhea-AI Filing Summary

3M Company executive Mark W. Murphy filed an amended insider report correcting a prior tax-withholding transaction. On February 2, 2026, 4,793.011 shares of 3M common stock were disposed of at a price of $0.0000 per share to cover tax liabilities by delivering shares rather than paying cash.

After this tax-withholding disposition, Murphy directly owned 13,024.9451 shares of 3M common stock. The amendment states that the number of shares previously reported as withheld for taxes had been estimated and is now updated to reflect the actual shares withheld.

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^*

Murphy Mark W.

(Last) (First) (Middle)

3M CENTER

(Street)

ST. PAUL MN 55144

(City) (State) (Zip)

2. Issuer Name and Ticker or Trading Symbol
3M CO [ MMM ]

5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director		10% Owner
X	Officer (give title below)		Other (specify below)
	EVP & Chief Info Digital Off

3. Date of Earliest Transaction (Month/Day/Year)
02/02/2026

4. If Amendment, Date of Original Filed (Month/Day/Year)
02/04/2026

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

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

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	02/02/2026		F		4,793.011(1)	D	$0	13,024.9451	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:

1. The number of shares previously reported as being withheld for the payment of taxes was estimated. This amendment is being filed to update the Form 4 with the actual number of shares withheld.

	Patricia L. Meagher, attorney-in-fact for Mark W. Murphy	02/18/2026
	** 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).
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FAQ

What insider transaction did Mark W. Murphy report for 3M (MMM)?

Mark W. Murphy reported a tax-withholding disposition of 4,793.011 shares of 3M common stock. The shares were delivered to cover tax liabilities rather than sold for cash, and this Form 4/A corrects the previously estimated share amount.

Was Mark W. Murphy’s 3M (MMM) Form 4/A an open-market sale?

No, the transaction was a tax-withholding disposition, not an open-market sale. Shares were withheld and delivered at $0.0000 per share to satisfy tax obligations tied to equity compensation, according to the amended Form 4/A details.

How many 3M (MMM) shares did Mark W. Murphy dispose of for taxes?

Mark W. Murphy disposed of 4,793.011 shares of 3M common stock for tax withholding. The amendment explains that an earlier filing used an estimated number of withheld shares, which this Form 4/A updates to the actual figure.

How many 3M (MMM) shares does Mark W. Murphy own after this transaction?

After the tax-withholding disposition, Mark W. Murphy directly owns 13,024.9451 shares of 3M common stock. This post-transaction balance reflects the updated, actual number of shares withheld for tax purposes reported in the amended Form 4/A.

Why did 3M (MMM) executive Mark W. Murphy file an amended Form 4/A?

He filed an amended Form 4/A to correct the number of shares previously reported as withheld for taxes. The original filing used an estimated withholding amount; the amendment updates it to the actual 4,793.011 shares delivered for tax obligations.