3M CO — Director's Dealing 2025

May 19, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2025-05-15

Reporting Person: Dickson Zoe L (EVP & Chief HR Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-05-15	Common Stock	S	2074	$148.93	Disposed	7976.2296	Direct
2025-05-15	Common Stock	S	159	$148.931	Disposed	7817.2296	Direct
2025-05-15	Common Stock	S	340	$148.94	Disposed	7477.2296	Direct
2025-05-15	Common Stock	S	14	$148.9501	Disposed	7463.2296	Direct
2025-05-15	Common Stock	S	300	$148.9551	Disposed	7163.2296	Direct
2025-05-15	Common Stock	S	735	$148.96	Disposed	6428.2296	Direct
2025-05-15	Common Stock	S	250	$148.9601	Disposed	6178.2296	Direct
2025-05-15	Common Stock	S	5	$148.9611	Disposed	6173.2296	Direct
2025-05-15	Common Stock	S	46	$148.97	Disposed	6127.2296	Direct
2025-05-15	Common Stock	M	3992	$130.14	Acquired	10119.2296	Direct
2025-05-15	Common Stock	S	600	$149.06	Disposed	9519.2296	Direct
2025-05-15	Common Stock	S	1932	$149.08	Disposed	7587.2296	Direct
2025-05-15	Common Stock	S	1460	$149.12	Disposed	6127.2296	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-05-15	Non-qualified Stock Option (Right to Buy)	$130.14	M	3992	Disposed	2026-02-02	Common Stock (3992)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	295	Indirect

Footnotes

F1: Includes dividend share equivalents, accrued quarterly, pursuant to 3M's Deferred Compensation Plan.

F2: Includes shares acquired under 3M's General Employee Stock Purchase Plan.