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	500	$139.82	Disposed	69140	Direct
2014-05-06	Common Stock	S	301	$139.83	Disposed	68839	Direct
2014-05-06	Common Stock	S	500	$139.84	Disposed	68339	Direct
2014-05-06	Common Stock	S	700	$139.85	Disposed	67639	Direct
2014-05-06	Common Stock	S	400	$139.86	Disposed	67239	Direct
2014-05-06	Common Stock	S	100	$139.864	Disposed	67139	Direct
2014-05-06	Common Stock	S	500	$139.87	Disposed	66639	Direct
2014-05-06	Common Stock	S	600	$139.88	Disposed	66039	Direct
2014-05-06	Common Stock	S	100	$139.8825	Disposed	65939	Direct
2014-05-06	Common Stock	S	200	$139.89	Disposed	65739	Direct
2014-05-06	Common Stock	S	600	$139.90	Disposed	65139	Direct
2014-05-06	Common Stock	S	300	$139.91	Disposed	64839	Direct
2014-05-06	Common Stock	S	100	$139.916	Disposed	64739	Direct
2014-05-06	Common Stock	S	300	$139.92	Disposed	64439	Direct
2014-05-06	Common Stock	S	236	$139.93	Disposed	64203	Direct
2014-05-06	Common Stock	S	200	$139.94	Disposed	64003	Direct
2014-05-06	Common Stock	S	100	$139.95	Disposed	63903	Direct
2014-05-06	Common Stock	S	100	$139.96	Disposed	63803	Direct
2014-05-06	Common Stock	S	100	$139.98	Disposed	63703	Direct
2014-05-06	Common Stock	S	200	$140.00	Disposed	63503	Direct
2014-05-06	Common Stock	S	300	$140.01	Disposed	63203	Direct
2014-05-06	Common Stock	S	100	$140.04	Disposed	63103	Direct
2014-05-06	Common Stock	S	200	$140.06	Disposed	62903	Direct
2014-05-06	Common Stock	S	100	$140.065	Disposed	62803	Direct
2014-05-06	Common Stock	S	100	$140.07	Disposed	62703	Direct
2014-05-06	Common Stock	S	100	$140.09	Disposed	62603	Direct
2014-05-06	Common Stock	S	100	$140.10	Disposed	62503	Direct
2014-05-06	Common Stock	S	100	$140.105	Disposed	62403	Direct
2014-05-06	Common Stock	S	100	$140.12	Disposed	62303	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.