3M CO — Director's Dealing 2012

Feb 13, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2012-02-10

Reporting Person: BUCKLEY GEORGE W (Director, CHAIRMAN OF THE BOARD & CEO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-10	Common Stock	S	100	$86.9375	Disposed	285087	Direct
2012-02-10	Common Stock	S	3800	$86.94	Disposed	281287	Direct
2012-02-10	Common Stock	S	1300	$86.945	Disposed	279987	Direct
2012-02-10	Common Stock	S	3929	$86.95	Disposed	276058	Direct
2012-02-10	Common Stock	S	7645	$86.96	Disposed	268413	Direct
2012-02-10	Common Stock	S	6700	$86.965	Disposed	261713	Direct
2012-02-10	Common Stock	S	400	$86.9675	Disposed	261313	Direct
2012-02-10	Common Stock	S	100	$86.969	Disposed	261213	Direct
2012-02-10	Common Stock	S	3386	$86.97	Disposed	257827	Direct
2012-02-10	Common Stock	S	850	$86.98	Disposed	256977	Direct
2012-02-10	Common Stock	S	1428	$86.99	Disposed	255549	Direct
2012-02-10	Common Stock	S	200	$86.995	Disposed	255349	Direct
2012-02-10	Common Stock	S	20976	$87.00	Disposed	234373	Direct
2012-02-10	Common Stock	S	100	$87.002	Disposed	234273	Direct
2012-02-10	Common Stock	S	5211	$87.01	Disposed	229062	Direct
2012-02-10	Common Stock	S	100	$87.015	Disposed	228962	Direct
2012-02-10	Common Stock	S	3707	$87.02	Disposed	225255	Direct
2012-02-10	Common Stock	S	5205	$87.03	Disposed	220050	Direct
2012-02-10	Common Stock	S	3834	$87.04	Disposed	216216	Direct
2012-02-10	Common Stock	S	3510	$87.05	Disposed	212706	Direct
2012-02-10	Common Stock	S	2699	$87.06	Disposed	210007	Direct
2012-02-10	Common Stock	S	1300	$87.065	Disposed	208707	Direct
2012-02-10	Common Stock	S	1571	$87.07	Disposed	207136	Direct
2012-02-10	Common Stock	S	100	$87.0702	Disposed	207036	Direct
2012-02-10	Common Stock	S	100	$87.0703	Disposed	206936	Direct
2012-02-10	Common Stock	S	1256	$87.08	Disposed	205680	Direct
2012-02-10	Common Stock	S	900	$87.09	Disposed	204780	Direct
2012-02-10	Common Stock	S	3200	$87.095	Disposed	201580	Direct
2012-02-10	Common Stock	S	2677	$87.10	Disposed	198903	Direct
2012-02-10	Common Stock	S	2300	$87.105	Disposed	196603	Direct