3M CO — Director's Dealing 2016

Aug 1, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2016-07-29

Reporting Person: Keel Paul A (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-07-29	Common Stock	M	3180	$84.78	Acquired	9961	Direct
2016-07-29	Common Stock	S	783	$178.38	Disposed	9178	Direct
2016-07-29	Common Stock	S	1172	$178.39	Disposed	8006	Direct
2016-07-29	Common Stock	S	680	$178.395	Disposed	7326	Direct
2016-07-29	Common Stock	S	245	$178.40	Disposed	7081	Direct
2016-07-29	Common Stock	S	300	$178.41	Disposed	6781	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-07-29	Non-qualified Stock Option (Right to Buy)	$84.78	M	3180	Disposed	2017-05-08	Common Stock (3180)	Direct

Footnotes

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