3M CO — Director's Dealing 2004

Mar 20, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-03-17

Reporting Person: POWELL DAVID W (Vice President Marketing)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-03-17	Common Stock	M	30324	$58.6250	Acquired	74921	Direct
2004-03-17	Common Stock	F	22417	$79.3	Disposed	52504	Direct
2004-03-17	Common Stock	F	2585	$79.3	Disposed	49919	Direct
2004-03-17	Common Stock	M	19016	$47.5	Acquired	68935	Direct
2004-03-17	Common Stock	F	11390	$79.3	Disposed	57545	Direct
2004-03-17	Common Stock	F	2493	$79.30	Disposed	55052	Direct
2004-03-17	Common Stock	M	6060	$48.25	Acquired	61112	Direct
2004-03-17	Common Stock	F	3687	$79.3	Disposed	57425	Direct
2004-03-17	Common Stock	F	775	$79.3	Disposed	56650	Direct
2004-03-17	Common Stock	M	4788	$48.225	Acquired	61438	Direct
2004-03-17	Common Stock	F	2911	$79.3	Disposed	58527	Direct
2004-03-17	Common Stock	F	613	$79.3	Disposed	57914	Direct
2004-03-17	Common Stock	M	3946	$48.25	Acquired	61860	Direct
2004-03-17	Common Stock	F	2400	$79.3	Disposed	59460	Direct
2004-03-17	Common Stock	F	505	$79.3	Disposed	58955	Direct
2004-03-17	Common Stock	M	904	$46.6750	Acquired	59859	Direct
2004-03-17	Common Stock	F	532	$79.3	Disposed	59327	Direct
2004-03-17	Common Stock	F	121	$79.3	Disposed	59206	Direct
2004-03-17	Common Stock	F	2024	$79.3	Disposed	2024	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-03-17	Non-Qualified Stock Option (right to buy)	$47.5	M	19016	Disposed	2009-05-10	Common Stock (19016)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$48.225	M	4788	Disposed	2005-05-06	Common Stock (4788)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$48.25	M	3946	Disposed	2004-05-07	Common Stock (3946)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$48.25	M	6060	Disposed	2006-05-12	Common Stock (6060)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$58.625	M	30324	Disposed	2011-05-08	Common Stock (30324)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$46.6750	M	904	Disposed	2008-05-12	Common Stock (904)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$79.3	A	3524	Acquired	2005-06-05	Common Stock (3524)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$79.3	A	4462	Acquired	2006-05-12	Common Stock (4462)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$79.3	A	653	Acquired	2008-05-12	Common Stock (653)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$79.3	A	13883	Acquired	2009-05-11	Common Stock (13883)	Direct
2004-03-17	Non-Qualified Stock Option (right to buy)	$79.3	A	25002	Acquired	2011-05-06	Common Stock (25002)	Direct

Footnotes

F1: The directly-held common stock holding reported in Table I includes shares acquired during the fiscal year pursuant to 3M's General Employee Stock Purchase Plan.

F2: 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.