3M CO — Director's Dealing 2014

May 7, 2014

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2014-05-06

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2014-05-06	Common Stock	S	800	$139.48	Disposed	95449	Direct
2014-05-06	Common Stock	S	1000	$139.49	Disposed	94449	Direct
2014-05-06	Common Stock	S	100	$139.492	Disposed	94349	Direct
2014-05-06	Common Stock	S	100	$139.495	Disposed	94249	Direct
2014-05-06	Common Stock	S	2000	$139.50	Disposed	92249	Direct
2014-05-06	Common Stock	S	100	$139.506	Disposed	92149	Direct
2014-05-06	Common Stock	S	1400	$139.51	Disposed	90749	Direct
2014-05-06	Common Stock	S	400	$139.52	Disposed	90349	Direct
2014-05-06	Common Stock	S	100	$139.5225	Disposed	90249	Direct
2014-05-06	Common Stock	S	600	$139.53	Disposed	89649	Direct
2014-05-06	Common Stock	S	1000	$139.54	Disposed	88649	Direct
2014-05-06	Common Stock	S	100	$139.545	Disposed	88549	Direct
2014-05-06	Common Stock	S	1000	$139.55	Disposed	87549	Direct
2014-05-06	Common Stock	S	200	$139.555	Disposed	87349	Direct
2014-05-06	Common Stock	S	600	$139.56	Disposed	86749	Direct
2014-05-06	Common Stock	S	100	$139.565	Disposed	86649	Direct
2014-05-06	Common Stock	S	400	$139.57	Disposed	86249	Direct
2014-05-06	Common Stock	S	100	$139.572	Disposed	86149	Direct
2014-05-06	Common Stock	S	909	$139.58	Disposed	85240	Direct
2014-05-06	Common Stock	S	1700	$139.59	Disposed	83540	Direct
2014-05-06	Common Stock	S	100	$139.592	Disposed	83440	Direct
2014-05-06	Common Stock	S	540	$139.60	Disposed	82900	Direct
2014-05-06	Common Stock	S	1383	$139.61	Disposed	81517	Direct
2014-05-06	Common Stock	S	100	$139.612	Disposed	81417	Direct
2014-05-06	Common Stock	S	777	$139.62	Disposed	80640	Direct
2014-05-06	Common Stock	S	200	$139.621	Disposed	80440	Direct
2014-05-06	Common Stock	S	300	$139.63	Disposed	80140	Direct
2014-05-06	Common Stock	S	100	$139.634	Disposed	80040	Direct
2014-05-06	Common Stock	S	100	$139.635	Disposed	79940	Direct

Footnotes

F1: The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on November 14, 2013.