3M CO — Director's Dealing 2009

Oct 29, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2009-10-27

Reporting Person: Kelly Michael A (EXEC VP DISPLAY & GRAPHICS)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-10-27	Common Stock	M	2306	$43.35	Acquired	21598	Direct
2009-10-27	Common Stock	F	1315	$76.00	Disposed	20283	Direct
2009-10-27	Common Stock	M	2974	$43.35	Acquired	23257	Direct
2009-10-27	Common Stock	F	1696	$76.00	Disposed	21561	Direct
2009-10-27	Common Stock	F	417	$76.00	Disposed	21144	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2009-10-27	Incentive Stock Option (Right to Buy)	$43.35	M	2306	Disposed	2010-05-09	Common Stock (2306)	Direct
2009-10-27	Non-qualified Stock Option (Right to Buy)	$43.35	M	2974	Disposed	2010-05-09	Common Stock (2974)	Direct
2009-10-27	Non-qualified Stock Option (Right to Buy)	$76.00	A	2113	Acquired	2010-05-07	Common Stock (2113)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3134	Indirect

Footnotes

F1: Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan.

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