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	600	$139.64	Disposed	79340	Direct
2014-05-06	Common Stock	S	600	$139.65	Disposed	78740	Direct
2014-05-06	Common Stock	S	300	$139.66	Disposed	78440	Direct
2014-05-06	Common Stock	S	500	$139.67	Disposed	77940	Direct
2014-05-06	Common Stock	S	300	$139.68	Disposed	77640	Direct
2014-05-06	Common Stock	S	100	$139.684	Disposed	77540	Direct
2014-05-06	Common Stock	S	500	$139.69	Disposed	77040	Direct
2014-05-06	Common Stock	S	100	$139.695	Disposed	76940	Direct
2014-05-06	Common Stock	S	500	$139.70	Disposed	76440	Direct
2014-05-06	Common Stock	S	100	$139.706	Disposed	76340	Direct
2014-05-06	Common Stock	S	800	$139.71	Disposed	75540	Direct
2014-05-06	Common Stock	S	100	$139.7121	Disposed	75440	Direct
2014-05-06	Common Stock	S	400	$139.72	Disposed	75040	Direct
2014-05-06	Common Stock	S	100	$139.725	Disposed	74940	Direct
2014-05-06	Common Stock	S	300	$139.73	Disposed	74640	Direct
2014-05-06	Common Stock	S	300	$139.74	Disposed	74340	Direct
2014-05-06	Common Stock	S	500	$139.75	Disposed	73840	Direct
2014-05-06	Common Stock	S	100	$139.7514	Disposed	73740	Direct
2014-05-06	Common Stock	S	100	$139.7525	Disposed	73640	Direct
2014-05-06	Common Stock	S	100	$139.756	Disposed	73540	Direct
2014-05-06	Common Stock	S	500	$139.76	Disposed	73040	Direct
2014-05-06	Common Stock	S	500	$139.77	Disposed	72540	Direct
2014-05-06	Common Stock	S	900	$139.78	Disposed	71640	Direct
2014-05-06	Common Stock	S	800	$139.79	Disposed	70840	Direct
2014-05-06	Common Stock	S	100	$139.7907	Disposed	70740	Direct
2014-05-06	Common Stock	S	100	$139.794	Disposed	70640	Direct
2014-05-06	Common Stock	S	600	$139.80	Disposed	70040	Direct
2014-05-06	Common Stock	S	200	$139.81	Disposed	69840	Direct
2014-05-06	Common Stock	S	200	$139.814	Disposed	69640	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.