3M CO — Director's Dealing 2012

Mar 6, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2012-03-05

Reporting Person: SAUER BRAD T (EXEC VP HEALTH CARE)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-03-05	Common Stock	S	100	$87.12	Disposed	30706	Direct
2012-03-05	Common Stock	S	600	$87.13	Disposed	30106	Direct
2012-03-05	Common Stock	S	100	$87.135	Disposed	30006	Direct
2012-03-05	Common Stock	S	400	$87.14	Disposed	29606	Direct
2012-03-05	Common Stock	S	884	$87.15	Disposed	28722	Direct
2012-03-05	Common Stock	S	1300	$87.1528	Disposed	27422	Direct
2012-03-05	Common Stock	S	100	$87.1536	Disposed	27322	Direct
2012-03-05	Common Stock	S	100	$87.155	Disposed	27222	Direct
2012-03-05	Common Stock	S	1400	$87.16	Disposed	25822	Direct
2012-03-05	Common Stock	S	200	$87.165	Disposed	25622	Direct
2012-03-05	Common Stock	S	3457	$87.17	Disposed	22165	Direct
2012-03-05	Common Stock	S	300	$87.1725	Disposed	21865	Direct
2012-03-05	Common Stock	S	200	$87.175	Disposed	21665	Direct
2012-03-05	Common Stock	S	1150	$87.18	Disposed	20515	Direct
2012-03-05	Common Stock	S	200	$87.1825	Disposed	20315	Direct
2012-03-05	Common Stock	S	300	$87.185	Disposed	20015	Direct
2012-03-05	Common Stock	S	302	$87.19	Disposed	19713	Direct
2012-03-05	Common Stock	S	400	$87.205	Disposed	19313	Direct
2012-03-05	Common Stock	S	100	$87.21	Disposed	19213	Direct
2012-03-05	Common Stock	S	400	$87.2125	Disposed	18813	Direct
2012-03-05	Common Stock	S	400	$87.25	Disposed	18413	Direct
2012-03-05	Common Stock	S	200	$87.275	Disposed	18213	Direct
2012-03-05	Common Stock	S	80	$87.30	Disposed	18133	Direct
2012-03-05	Common Stock	S	200	$87.3075	Disposed	17933	Direct
2012-03-05	Common Stock	S	109	$87.31	Disposed	17824	Direct
2012-03-05	Common Stock	S	9	$87.32	Disposed	17815	Direct
2012-03-05	Common Stock	S	102	$87.33	Disposed	17713	Direct
2012-03-05	Common Stock	S	300	$87.345	Disposed	17413	Direct
2012-03-05	Common Stock	S	300	$87.36	Disposed	17113	Direct
2012-03-05	Common Stock	S	300	$87.365	Disposed	16813	Direct

Footnotes

F1: Shares were sold pursuant to a Rule 10b5-1 trading plan dated February 15, 2012.