3M CO — Director's Dealing 2019

May 20, 2019

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2019-05-17

Reporting Person: Delgado Joaquin (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2019-05-17	Common Stock	M	5400	$89.47	Acquired	28092.4491	Direct
2019-05-17	Common Stock	S	5400	$169.675	Disposed	22692.4491	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2019-05-17	Non-qualified Stock Option (Right to Buy)	$89.47	M	5400	Disposed	2021-02-08	Common Stock (5400)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1163	Indirect

Footnotes

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

F2: This option becomes exercisable in equal installments on each of the first three anniversaries of the grant date (2/8/2011).