3M CO — Director's Dealing 2018

Feb 6, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2018-02-02

Reporting Person: Roman Michael F (Executive Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-02-02	Common Stock	M	4146	$77.18	Acquired	16208.159	Direct
2018-02-02	Common Stock	S	100	$246.59	Disposed	16108.159	Direct
2018-02-02	Common Stock	S	100	$246.61	Disposed	16008.159	Direct
2018-02-02	Common Stock	S	200	$246.62	Disposed	15808.159	Direct
2018-02-02	Common Stock	S	300	$246.63	Disposed	15508.159	Direct
2018-02-02	Common Stock	S	100	$246.64	Disposed	15408.159	Direct
2018-02-02	Common Stock	S	300	$246.65	Disposed	15108.159	Direct
2018-02-02	Common Stock	S	2146	$246.6575	Disposed	12962.159	Direct
2018-02-02	Common Stock	S	800	$246.66	Disposed	12162.159	Direct
2018-02-02	Common Stock	S	100	$246.69	Disposed	12062.159	Direct
2018-02-02	Common Stock	M	2458	$77.18	Acquired	14520.159	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-02-02	Non-qualified Stock Option (Right to Buy)	$77.18	M	4146	Disposed	2018-05-13	Common Stock (4146)	Direct
2018-02-02	Non-qualified Stock Option (Right to Buy)	$77.18	M	2458	Disposed	2018-05-13	Common Stock (2458)	Direct

Footnotes

F1: This form is being filed to report the exercise of a 3M stock option by means of a cashless-sell-to-cover method (selling enough shares to cover option share purchase price, fee and taxes, then retaining the remaining shares).

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