3M CO — Director's Dealing 2005

Feb 3, 2005

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-12-31

Reporting Person: WIENS HAROLD J (EXEC VP INDUSTRIAL)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-12-20	Common Stock	G	2900	—	Disposed	55080	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1918	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Non-Qualified Stock Option (right to buy)	$58.625	2007-05-13	Common Stock (6210)	6210	Direct
Non-Qualified Stock Option (right to buy)	$58.625	2008-05-12	Common Stock (3846)	3846	Direct
Non-Qualified Stock Option (right to buy)	$58.625	2011-05-08	Common Stock (78296)	78296	Direct
Non-Qualified Stock Option (right to buy)	$61.85	2013-05-12	Common Stock (66000)	66000	Direct
Non-Qualified Stock Option (right to buy)	$63.825	2010-05-07	Common Stock (14952)	14952	Direct
Non-Qualified Stock Option (right to buy)	$64.325	2008-05-12	Common Stock (7920)	7920	Direct
Non-Qualified Stock Option (right to buy)	$64.325	2010-05-07	Common Stock (18716)	18716	Direct
Non-Qualified Stock Option (right to buy)	$64.5	2012-05-14	Common Stock (80000)	80000	Direct
Non-Qualified Stock Option (right to buy)	$84.4	2014-05-09	Common Stock (67426)	67426	Direct
Non-Qualified Stock Option (right to buy)	$84.8	2005-05-06	Common Stock (3421)	3421	Direct
Non-Qualified Stock Option (right to buy)	$84.8	2006-05-12	Common Stock (4316)	4316	Direct
Non-Qualified Stock Option (right to buy)	$84.8	2007-05-11	Common Stock (739)	739	Direct
Non-Qualified Stock Option (right to buy)	$84.8	2008-05-12	Common Stock (3340)	3340	Direct
Non-Qualified Stock Option (right to buy)	$84.8	2009-05-11	Common Stock (30339)	30339	Direct

Footnotes

F1: The indirectly-held common stock holding (401k/PAESOP) reported in Table I includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.

The directly-held common stock holding reported in Table I includes shares acquired pursuant to 3M's Dividend Reinvestment Program in transactions exempt from Section 16.