3M CO — Director's Dealing 2004

Nov 12, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-11-10

Reporting Person: WIENS HAROLD J (EXEC VP INDUSTRIAL)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-11-10	Common Stock	M	2180	$45.85	Acquired	55888	Direct
2004-11-10	Common Stock	F	1235	$80.925	Disposed	54653	Direct
2004-11-10	Common Stock	M	2142	$46.675	Acquired	56795	Direct
2004-11-10	Common Stock	F	1235	$80.925	Disposed	55560	Direct
2004-11-10	Common Stock	M	2104	$47.5	Acquired	57664	Direct
2004-11-10	Common Stock	F	1234	$80.925	Disposed	56430	Direct
2004-11-10	Common Stock	M	2306	$43.35	Acquired	58736	Direct
2004-11-10	Common Stock	F	1235	$80.925	Disposed	57501	Direct
2004-11-10	Common Stock	M	1704	$58.625	Acquired	59205	Direct
2004-11-10	Common Stock	F	1234	$80.925	Disposed	57971	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-11-10	Incentive Stock Option (right to buy)	$43.35	M	2306	Disposed	2010-05-09	Common Stock (2306)	Direct
2004-11-10	Incentive Stock Option (right to buy)	$45.85	M	2180	Disposed	2007-05-13	Common Stock (2180)	Direct
2004-11-10	Incentive Stock Option (right to buy)	$46.675	M	2142	Disposed	2008-05-12	Common Stock (2142)	Direct
2004-11-10	Incentive Stock Option (right to buy)	$47.5	M	2104	Disposed	2009-05-10	Common Stock (2104)	Direct
2004-11-10	Incentive Stock Option (right to buy)	$58.625	M	1704	Disposed	2011-05-08	Common Stock (1704)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1906	Indirect