3M CO — Director's Dealing 2020

May 4, 2020

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2020-05-01

Reporting Person: Roman Michael F (Director, Chairman, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2020-05-01	Common Stock	M	10067	$89.47	Acquired	57867.9917	Direct
2020-05-01	Common Stock	S	310	$148.697	Disposed	57557.9917	Direct
2020-05-01	Common Stock	S	7584	$148.6987	Disposed	49973.9917	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2020-05-01	Non-qualified Stock Option (Right to Buy)	$89.47	M	2483	Disposed	2021-02-08	Common Stock (2483)	Direct
2020-05-01	Non-qualified Stock Option (Right to Buy)	$89.47	M	7584	Disposed	2021-02-08	Common Stock (7584)	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 5, 2019.