3M CO — Director's Dealing 2007

Aug 6, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2007-08-02

Reporting Person: Lalor Angela S (VICE PRESIDENT HR)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-08-02	Common Stock	M	4112	$61.85	Acquired	7772	Direct
2007-08-02	Common Stock	F	2859	$88.93	Disposed	4913	Direct
2007-08-02	Common Stock	F	409	$88.93	Disposed	4504	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-08-02	Non-Qualified Stock Option (right to buy)	$61.85	M	4112	Disposed	2013-05-12	Common Stock (4112)	Direct
2007-08-02	Non-Qualified Stock Option (right to buy)	$88.95	A	3268	Acquired	2013-05-13	Common Stock (3268)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	1443	Indirect