3M CO — Director's Dealing 2009

Nov 12, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2009-11-11

Reporting Person: MacDonald Robert D III (VICE PRESIDENT MARKETING)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-11-11	Common Stock	M	4124	$61.90	Acquired	38403	Direct
2009-11-11	Common Stock	F	3274	$77.96	Disposed	35129	Direct
2009-11-11	Common Stock	F	277	$77.96	Disposed	34852	Direct
2009-11-11	Common Stock	M	1518	$61.85	Acquired	36370	Direct
2009-11-11	Common Stock	F	1204	$77.96	Disposed	35166	Direct
2009-11-11	Common Stock	F	102	$77.96	Disposed	35064	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2009-11-11	Non-qualified Stock Option (Right to Buy)	$61.90	M	4124	Disposed	2010-05-07	Common Stock (4124)	Direct
2009-11-11	Non-qualified Stock Option (Right to Buy)	$61.85	M	1518	Disposed	2010-05-07	Common Stock (1518)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2556	Indirect

Footnotes

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

F2: Includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.