3M CO — Director's Dealing 2004

Feb 2, 2004

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2003-12-31

Reporting Person: NELSON RONALD G (VICE PRESIDENT & CONTROLLER)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	36254	Direct
Common Stock	1819	Indirect

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Incentive Stock Option (right to buy)	$24.1186	2004-05-10	Common Stock (2046)	2046	Direct
Incentive Stock Option (right to buy)	$28.6348	2005-05-09	Common Stock (3490)	3490	Direct
Incentive Stock Option (right to buy)	$31.5175	2006-05-14	Common Stock (3172)	3172	Direct
Incentive Stock Option (right to buy)	$43.3500	2010-05-09	Common Stock (2306)	2306	Direct
Incentive Stock Option (right to buy)	$45.8500	2007-05-13	Common Stock (2180)	2180	Direct
Incentive Stock Option (right to buy)	$46.6750	2008-05-12	Common Stock (2142)	2142	Direct
Incentive Stock Option (right to buy)	$47.5000	2009-05-10	Common Stock (2104)	2104	Direct
Incentive Stock Option (right to buy)	$58.6250	2011-05-08	Common Stock (1704)	1704	Direct
Non-Qualified Stock Option (right to buy)	$46.6750	2008-05-12	Common Stock (9018)	9018	Direct
Non-Qualified Stock Option (right to buy)	$47.5000	2009-05-10	Common Stock (19016)	19016	Direct
Non-Qualified Stock Option (right to buy)	$48.8750	2005-05-09	Common Stock (7572)	7572	Direct
Non-Qualified Stock Option (right to buy)	$52.5000	2005-05-06	Common Stock (3130)	3130	Direct
Non-Qualified Stock Option (right to buy)	$52.5000	2006-05-12	Common Stock (10140)	10140	Direct
Non-Qualified Stock Option (right to buy)	$58.6250	2011-05-08	Common Stock (30896)	30896	Direct
Non-Qualified Stock Option (right to buy)	$61.8500	2013-05-12	Common Stock (32600)	32600	Direct
Non-Qualified Stock Option (right to buy)	$62.3000	2004-05-07	Common Stock (1550)	1550	Direct
Non-Qualified Stock Option (right to buy)	$62.3000	2005-05-06	Common Stock (1116)	1116	Direct
Non-Qualified Stock Option (right to buy)	$62.3000	2010-05-07	Common Stock (15074)	15074	Direct
Non-Qualified Stock Option (right to buy)	$64.5000	2012-05-14	Common Stock (32600)	32600	Direct
Non-Qualified Stock Option (right to buy)	$69.3500	2004-05-07	Common Stock (1706)	1706	Direct
Non-Qualified Stock Option (right to buy)	$69.3500	2006-05-12	Common Stock (3238)	3238	Direct
Non-Qualified Stock Option (right to buy)	$69.3500	2007-05-11	Common Stock (14620)	14620	Direct
Non-Qualified Stock Option (right to buy)	$69.3500	2008-05-12	Common Stock (7768)	7768	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.