Victoria Clarke - 01 Dec 2025 Form 4 Insider Report for 3M CO (MMM)

Role: EVP & Chief Public Affairs Off
Signature: Patricia L. Meagher, attorney-in-fact for Victoria Clarke
Issuer symbol: MMM
Transactions as of: 01 Dec 2025
Net transactions value: +$316,581
Form type: 4
Filing time: 03 Dec 2025, 16:06:12 UTC
Previous filing: 03 Feb 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Clarke Victoria	EVP & Chief Public Affairs Off	3M CENTER, ST. PAUL	Patricia L. Meagher, attorney-in-fact for Victoria Clarke	03 Dec 2025	0002001457

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MMM	Common Stock	Options Exercise	$485,186	+2,846	+784%	$170.48	3,209	01 Dec 2025	Direct
transaction	MMM	Common Stock	Tax liability	$168,605	-989	-31%	$170.48	2,220	01 Dec 2025	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MMM	Restricted Stock Units	Options Exercise	$0	-2,846	-50%	$0.000000	2,845	01 Dec 2025	Common Stock	2,846		Direct	F2, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Includes shares acquired under 3M's General Employee Stock Purchase Plan.
F2	Each restricted stock unit represents a contingent right to receive one share of 3M common stock.
F3	The restricted stock units vest in three equal annual installments beginning December 1, 2024.