3M CO — Director's Dealing 2007

Aug 1, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2007-07-31

Reporting Person: Lobey Jean (EXEC VP SFTY SEC & PROT SVCS)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-07-31	Common Stock	M	3000	$43.35	Acquired	8725	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-07-31	Non-Qualified Stock Option (right to buy)	$43.35	M	3000	Disposed	2010-05-09	Common Stock (3000)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	348	Indirect