3M CO — Director's Dealing 2012

Feb 10, 2012

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2012-02-09

Reporting Person: Meline David W (SR VP & CHIEF FINANCIAL OFCR)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2012-02-09	Common Stock	M	4159	$88.02	Acquired	6262	Direct
2012-02-09	Common Stock	F	1371	$88.02	Disposed	4891	Direct
2012-02-09	Common Stock	M	847	$88.02	Acquired	5738	Direct
2012-02-09	Common Stock	F	277	$88.02	Disposed	5461	Direct
2012-02-09	Common Stock	M	3835	$88.02	Acquired	9296	Direct
2012-02-09	Common Stock	F	1255	$88.02	Disposed	8041	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2012-02-09	Restricted Stock Units	$	M	4159	Disposed		Common Stock (4159)	Direct
2012-02-09	Restricted Stock Units	$	M	847	Disposed		Common Stock (847)	Direct

Footnotes

F1: Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

F2: The restricted stock units will vest 100% three years from the grant date (2/9/2009).

F3: The restricted stock units will vest in equal installments on 2-9-2012 and 2-9-2013.