3M CO — Director's Dealing 2020

May 6, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

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

Reporting Person: Keel Paul A (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-05	Common Stock	S	2000	$147.3522	Disposed	16830.6653	Direct
2020-05-05	Common Stock	M	8249	$89.47	Acquired	25079.6653	Direct
2020-05-05	Common Stock	S	8249	$147.12	Disposed	16830.6653	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-05	Non-qualified Stock Option (Right to Buy)	$89.47	M	8249	Disposed	2021-02-08	Common Stock (8249)	Direct

Footnotes

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