3M CO — Director's Dealing 2010

Feb 6, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2010-02-04

Reporting Person: Lacey Roger HD (Senior Vice President)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-04	Common Stock	M	1780	$43.35	Acquired	24030	Direct
2010-02-04	Common Stock	F	974	$79.21	Disposed	23056	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-04	Incentive Stock Option (Right to Buy)	$43.35	M	1780	Disposed	2010-05-07	Common Stock (1780)	Direct

Footnotes

F1: Includes shares acquired under 3M's General Employee Stock Purchase Plan.