3M CO — Director's Dealing 2016

May 12, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2016-05-11

Reporting Person: THULIN INGE G (Director, Chairman, President & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-11	Common Stock	M	45758	$84.78	Acquired	196183	Direct
2016-05-11	Common Stock	S	100	$169.85	Disposed	196083	Direct
2016-05-11	Common Stock	S	300	$169.86	Disposed	195783	Direct
2016-05-11	Common Stock	S	600	$169.87	Disposed	195183	Direct
2016-05-11	Common Stock	S	100	$169.875	Disposed	195083	Direct
2016-05-11	Common Stock	S	400	$169.88	Disposed	194683	Direct
2016-05-11	Common Stock	S	100	$169.8845	Disposed	194583	Direct
2016-05-11	Common Stock	S	900	$169.89	Disposed	193683	Direct
2016-05-11	Common Stock	S	100	$169.891	Disposed	193583	Direct
2016-05-11	Common Stock	S	100	$169.898	Disposed	193483	Direct
2016-05-11	Common Stock	S	742	$169.90	Disposed	192741	Direct
2016-05-11	Common Stock	S	200	$169.905	Disposed	192541	Direct
2016-05-11	Common Stock	S	859	$169.91	Disposed	191682	Direct
2016-05-11	Common Stock	S	100	$169.9114	Disposed	191582	Direct
2016-05-11	Common Stock	S	100	$169.915	Disposed	191482	Direct
2016-05-11	Common Stock	S	1200	$169.92	Disposed	190282	Direct
2016-05-11	Common Stock	S	363	$169.93	Disposed	189919	Direct
2016-05-11	Common Stock	S	100	$169.935	Disposed	189819	Direct
2016-05-11	Common Stock	S	1837	$169.94	Disposed	187982	Direct
2016-05-11	Common Stock	S	400	$169.945	Disposed	187582	Direct
2016-05-11	Common Stock	S	100	$169.9475	Disposed	187482	Direct
2016-05-11	Common Stock	S	1147	$169.95	Disposed	186335	Direct
2016-05-11	Common Stock	S	600	$169.955	Disposed	185735	Direct
2016-05-11	Common Stock	S	1399	$169.96	Disposed	184337	Direct
2016-05-11	Common Stock	S	100	$169.964	Disposed	184236	Direct
2016-05-11	Common Stock	S	300	$169.965	Disposed	183936	Direct
2016-05-11	Common Stock	S	1200	$169.97	Disposed	182736	Direct
2016-05-11	Common Stock	S	500	$169.975	Disposed	182236	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2016-05-11	Non-qualified Stock Option (Right to Buy)	$84.78	M	45758	Disposed	2017-05-08	Common Stock (45758)	Direct