3M CO — Director's Dealing 2004

Nov 17, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-11-15

Reporting Person: CAMPBELL PATRICK D (VICE PRESIDENT FINANCE & CFO)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-11-15	Common Stock	M	3500	$55.975	Acquired	14650	Direct
2004-11-15	Common Stock	M	832	$28.6348	Acquired	1858	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-11-15	Incentive Stock Option (right to buy)	$28.6348	M	832	Disposed	2005-05-09	Common Stock (832)	Indirect
2004-11-15	Non-Qualified Stock Option (right to buy)	$55.975	M	3500	Disposed	2012-02-01	Common Stock (3500)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	394	Indirect
Common Stock	1476	Indirect