3M CO — Director's Dealing 2007

May 2, 2007

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2007-05-01

Reporting Person: NOZARI M S (EXEC VP CONSUMER & OFFICE)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2007-05-01	Common Stock	M	2104	$47.5	Acquired	95396	Direct
2007-05-01	Common Stock	F	1204	$82.945	Disposed	94192	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2007-05-01	Incentive Stock Option (right to buy)	$47.5	M	2104	Disposed	2009-05-10	Common Stock (2104)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4515	Indirect