Theresa E. Reinseth - 02 May 2025 Form 4 Insider Report for 3M CO (MMM)

Role: Sr Vice President & CAO
Signature: /s/ Patricia L. Meagher, attorney-in-fact for Theresa E. Reinseth
Issuer symbol: MMM
Transactions as of: 02 May 2025
Net transactions value: +$142,080
Form type: 4
Filing time: 05 May 2025, 08:35:54 UTC
Previous filing: 13 Feb 2025
Next filing: 06 Aug 2025
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Reinseth Theresa E	Sr Vice President & CAO	3M CENTER, ST. PAUL	/s/ Patricia L. Meagher, attorney-in-fact for Theresa E. Reinseth	05 May 2025	0001772245

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MMM	Common Stock	Options Exercise	$204,737	+1,441	+29%	$142.08	6,449	02 May 2025	Direct
transaction	MMM	Common Stock	Tax liability	$62,657	-441	-6.8%	$142.08	6,008	02 May 2025	Direct	F1
holding	MMM	Common Stock						560	02 May 2025	By 401k/paesop Trust

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	-1,441	-33%	$0.000000	2,883	02 May 2025	Common Stock	1,441		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 pursuant to 3M's Dividend Reinvestment 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 on May 3, 2025.