3M CO — Director's Dealing 2004

Aug 12, 2004

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2004-08-11

Reporting Person: ZIEGLER RICHARD F (VICE PRESIDENT LEGAL)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2004-08-11	Common Stock	M	3825	$61.85	Acquired	19211	Direct
2004-08-11	Common Stock	F	3000	$78.845	Disposed	16211	Direct
2004-08-11	Common Stock	F	269	$78.845	Disposed	15942	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2004-08-11	Non-Qualified Stock Option (right to buy)	$61.85	M	3825	Disposed	2013-05-12	Common Stock (3825)	Direct
2004-08-11	Non-Qualified Stock Option (right to buy)	$78.85	A	3269	Acquired	2013-05-13	Common Stock (3269)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	240	Indirect