3M CO — Director's Dealing 2005

Oct 24, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2005-10-21

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

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-10-21	Common Stock	M	1230	$43.35	Acquired	12532	Direct
2005-10-21	Common Stock	F	709	$75.185	Disposed	11823	Direct
2005-10-21	Common Stock	F	170	$75.185	Disposed	11653	Direct
2005-10-21	Common Stock	M	3176	$47.5	Acquired	14829	Direct
2005-10-21	Common Stock	F	2006	$75.185	Disposed	12823	Direct
2005-10-21	Common Stock	F	382	$75.185	Disposed	12441	Direct
2005-10-21	Common Stock	M	554	$58.625	Acquired	12995	Direct
2005-10-21	Common Stock	F	431	$75.185	Disposed	12564	Direct
2005-10-21	Common Stock	F	39	$75.185	Disposed	12525	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-10-21	Non-Qualified Stock Option (right to buy)	$43.35	M	1230	Disposed	2010-05-09	Common Stock (1230)	Direct
2005-10-21	Non-Qualified Stock Option (right to buy)	$47.5	M	3176	Disposed	2009-05-10	Common Stock (3176)	Direct
2005-10-21	Non-Qualified Stock Option (right to buy)	$58.625	M	554	Disposed	2011-05-08	Common Stock (554)	Direct
2005-10-21	Non-Qualified Stock Option (right to buy)	$75.2	A	2388	Acquired	2009-05-11	Common Stock (2388)	Direct
2005-10-21	Non-Qualified Stock Option (right to buy)	$75.2	A	879	Acquired	2010-05-07	Common Stock (879)	Direct
2005-10-21	Non-Qualified Stock Option (right to buy)	$75.2	A	470	Acquired	2011-05-06	Common Stock (470)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	795	Indirect