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	M	43677	$125.28	Acquired	105580	Direct
2014-05-06	Common Stock	S	100	$139.17	Disposed	105480	Direct
2014-05-06	Common Stock	S	300	$139.21	Disposed	105180	Direct
2014-05-06	Common Stock	S	100	$139.23	Disposed	105080	Direct
2014-05-06	Common Stock	S	100	$139.24	Disposed	104980	Direct
2014-05-06	Common Stock	S	200	$139.25	Disposed	104780	Direct
2014-05-06	Common Stock	S	100	$139.27	Disposed	104680	Direct
2014-05-06	Common Stock	S	100	$139.29	Disposed	104580	Direct
2014-05-06	Common Stock	S	100	$139.30	Disposed	104480	Direct
2014-05-06	Common Stock	S	200	$139.31	Disposed	104280	Direct
2014-05-06	Common Stock	S	200	$139.355	Disposed	104080	Direct
2014-05-06	Common Stock	S	200	$139.36	Disposed	103880	Direct
2014-05-06	Common Stock	S	200	$139.38	Disposed	103680	Direct
2014-05-06	Common Stock	S	531	$139.39	Disposed	103149	Direct
2014-05-06	Common Stock	S	900	$139.40	Disposed	102249	Direct
2014-05-06	Common Stock	S	100	$139.402	Disposed	102149	Direct
2014-05-06	Common Stock	S	166	$139.41	Disposed	101983	Direct
2014-05-06	Common Stock	S	500	$139.412	Disposed	101483	Direct
2014-05-06	Common Stock	S	1934	$139.42	Disposed	99549	Direct
2014-05-06	Common Stock	S	300	$139.43	Disposed	99249	Direct
2014-05-06	Common Stock	S	400	$139.44	Disposed	98849	Direct
2014-05-06	Common Stock	S	100	$139.4421	Disposed	98749	Direct
2014-05-06	Common Stock	S	516	$139.45	Disposed	98233	Direct
2014-05-06	Common Stock	S	100	$139.452	Disposed	98133	Direct
2014-05-06	Common Stock	S	600	$139.46	Disposed	97533	Direct
2014-05-06	Common Stock	S	200	$139.4607	Disposed	97333	Direct
2014-05-06	Common Stock	S	84	$139.462	Disposed	97249	Direct
2014-05-06	Common Stock	S	800	$139.47	Disposed	96449	Direct
2014-05-06	Common Stock	S	200	$139.475	Disposed	96249	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.