3M CO — Director's Dealing 2003

Oct 28, 2003

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2003-10-24

Reporting Person: WIENS HAROLD J (EXEC VP INDUSTRIAL)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2003-10-24	Common Stock	F	97	$70.375	Disposed	36869	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1767	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Incentive Stock Option (right to buy)	$43.35	2010-05-09	Common Stock (2306)	2306	Direct
Incentive Stock Option (right to buy)	$45.85	2007-05-13	Common Stock (2180)	2180	Direct
Incentive Stock Option (right to buy)	$46.675	2008-05-12	Common Stock (2142)	2142	Direct
Incentive Stock Option (right to buy)	$47.5	2009-05-10	Common Stock (2104)	2104	Direct
Incentive Stock Option (right to buy)	$58.625	2011-05-08	Common Stock (1704)	1704	Direct
Non-Qualified Stock Option (right to buy)	$46.675	2008-05-12	Common Stock (4790)	4790	Direct
Non-Qualified Stock Option (right to buy)	$47.475	2006-05-14	Common Stock (5396)	5396	Direct
Non-Qualified Stock Option (right to buy)	$47.475	2007-05-13	Common Stock (526)	526	Direct
Non-Qualified Stock Option (right to buy)	$47.5	2009-05-10	Common Stock (43096)	43096	Direct
Non-Qualified Stock Option (right to buy)	$48.4	2004-05-07	Common Stock (710)	710	Direct
Non-Qualified Stock Option (right to buy)	$48.4	2005-05-06	Common Stock (4812)	4812	Direct
Non-Qualified Stock Option (right to buy)	$48.4	2006-05-12	Common Stock (732)	732	Direct
Non-Qualified Stock Option (right to buy)	$58.625	2007-05-13	Common Stock (6678)	6678	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

Footnotes

F1: On September 29, 2003, the common stock of 3M Company split 2-for-1. The shares of common stock reported on Table I and all options reported on Table II have been adjusted to reflect the split.

F2: Shares held in corporate custody as restricted shares and awarded under the applicable 3M Management Stock Ownership Program pursuant to Rule 16b-3(d) have been distributed to participant (including shares withheld for taxes) pursuant to the provisions of the Program.