John P. Banovetz - 01 Oct 2025 Form 4 Insider Report for 3M CO (MMM)

Role: Executive Vice President
Signature: /s/ Patricia L. Meagher, attorney-in-fact for John P. Banovetz
Issuer symbol: MMM
Transactions as of: 01 Oct 2025
Net transactions value: -$22,152
Form type: 4
Filing time: 02 Oct 2025, 16:32:20 UTC
Previous filing: 27 May 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Banovetz John Patrick	Executive Vice President	3M CENTER, ST. PAUL	/s/ Patricia L. Meagher, attorney-in-fact for John P. Banovetz	02 Oct 2025	0001711228

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MMM	Common Stock	Options Exercise		+142	+0.45%		31,813	01 Oct 2025	Direct	F1
transaction	MMM	Common Stock	Tax liability	$22,152	-142	-0.45%	$156.00	31,671	01 Oct 2025	Direct	F2

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		-142	-4.1%		3,301	01 Oct 2025	Common Stock	142		Direct	F1, F3

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

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of 3M common stock.
F2	Shares withheld for FICA tax for retirement eligible executives.
F3	The restricted stock units vest 100% three years from the grant date.