3M CO — Director's Dealing 2016

May 13, 2016

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2016-05-12

Reporting Person: Singh Jesse G (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2016-05-12	Common Stock	M	8906	$78.72	Acquired	13481	Direct
2016-05-12	Common Stock	S	100	$169.8049	Disposed	13381	Direct
2016-05-12	Common Stock	S	100	$169.81	Disposed	13281	Direct
2016-05-12	Common Stock	S	100	$169.82	Disposed	13181	Direct
2016-05-12	Common Stock	S	400	$169.83	Disposed	12781	Direct
2016-05-12	Common Stock	S	100	$169.8375	Disposed	12681	Direct
2016-05-12	Common Stock	S	600	$169.84	Disposed	12081	Direct
2016-05-12	Common Stock	S	100	$169.845	Disposed	11981	Direct
2016-05-12	Common Stock	S	846	$169.85	Disposed	11135	Direct
2016-05-12	Common Stock	S	100	$169.86	Disposed	11035	Direct
2016-05-12	Common Stock	S	300	$169.87	Disposed	10735	Direct
2016-05-12	Common Stock	S	100	$169.875	Disposed	10635	Direct
2016-05-12	Common Stock	S	200	$169.89	Disposed	10435	Direct
2016-05-12	Common Stock	S	200	$169.91	Disposed	10235	Direct
2016-05-12	Common Stock	S	500	$169.93	Disposed	9735	Direct
2016-05-12	Common Stock	S	100	$169.94	Disposed	9635	Direct
2016-05-12	Common Stock	S	200	$169.945	Disposed	9435	Direct
2016-05-12	Common Stock	S	2250	$169.95	Disposed	7185	Direct
2016-05-12	Common Stock	S	200	$169.96	Disposed	6985	Direct
2016-05-12	Common Stock	S	100	$169.965	Disposed	6885	Direct
2016-05-12	Common Stock	S	406	$169.97	Disposed	6479	Direct
2016-05-12	Common Stock	S	400	$169.975	Disposed	6079	Direct
2016-05-12	Common Stock	S	500	$169.98	Disposed	5579	Direct
2016-05-12	Common Stock	S	204	$169.985	Disposed	5375	Direct
2016-05-12	Common Stock	S	500	$169.99	Disposed	4875	Direct
2016-05-12	Common Stock	S	300	$169.995	Disposed	4575	Direct
2016-05-12	Common Stock	M	3564	$78.72	Acquired	8139	Direct
2016-05-12	Common Stock	S	1550	$169.82	Disposed	6589	Direct
2016-05-12	Common Stock	S	150	$169.89	Disposed	6439	Direct