3M CO — Director's Dealing 2016

Apr 20, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2016-04-19

Reporting Person: Roman Michael F (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-02-05	Common Stock	G	1100	—	Disposed	5812	Direct
2016-04-19	Common Stock	M	1500	$87.35	Acquired	7435	Direct
2016-04-19	Common Stock	S	1500	$170.00	Disposed	5935	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-04-19	Non-qualified Stock Option (Right to Buy)	$87.35	M	1500	Disposed	2016-05-09	Common Stock (1500)	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 4, 2015.

F2: Includes shares acquired under 3M's General Employee Stock Purchase Plan.