3M CO — Director's Dealing 2020

May 7, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2020-05-06

Reporting Person: Hammes Eric D. (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-06	Common Stock	M	1026	$89.47	Acquired	10827.2534	Direct
2020-05-06	Common Stock	S	1026	$146.3599	Disposed	9801.2534	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-06	Non-qualified Stock Option (Right to Buy)	$89.47	M	1026	Disposed	2021-02-08	Common Stock (1026)	Direct

Footnotes

F1: Includes shares acquired under 3M's General Employee Stock Purchase Plan.