3M CO — Director's Dealing 2007

Aug 2, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2006-11-01

Reporting Person: SAUER BRAD T (EXEC VP HEALTH CARE)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-11-01	Common Stock	G	187	—	Disposed	13581	Direct
2007-08-01	Common Stock	M	7252	$58.625	Acquired	20212	Direct
2007-08-01	Common Stock	F	4797	$88.61	Disposed	15415	Direct
2007-08-01	Common Stock	F	802	$88.61	Disposed	14613	Direct
2007-08-01	Common Stock	M	1881	$61.85	Acquired	16494	Direct
2007-08-01	Common Stock	F	1312	$88.61	Disposed	15182	Direct
2007-08-01	Common Stock	F	185	$88.61	Disposed	14997	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-08-01	Non-Qualified Stock Option (right to buy)	$58.625	M	7252	Disposed	2011-05-08	Common Stock (7252)	Direct
2007-08-01	Non-Qualified Stock Option (right to buy)	$61.85	M	1881	Disposed	2013-05-12	Common Stock (1881)	Direct
2007-08-01	Non-Qualified Stock Option (right to buy)	$88.65	A	5599	Acquired	2011-05-06	Common Stock (5599)	Direct
2007-08-01	Non-Qualified Stock Option (right to buy)	$88.65	A	1497	Acquired	2013-05-13	Common Stock (1497)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1015	Indirect

Footnotes

F1: Gift to charity was inadvertently excluded from Form 5 filed on 1/29/2007.