3M CO — Director's Dealing 2005

Jun 1, 2005

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2005-05-27

Reporting Person: WIENS HAROLD J (EXEC VP INDUSTRIAL)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2005-05-27	Common Stock	M	71935	$58.625	Acquired	127273	Direct
2005-05-27	Common Stock	F	54633	$77.19	Disposed	72640	Direct
2005-05-27	Common Stock	F	7387	$77.19	Disposed	65253	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2005-05-27	Non-Qualified Stock Option (right to buy)	$58.625	M	71935	Disposed	2011-05-08	Common Stock (71935)	Direct
2005-05-27	Non-Qualified Stock Option (right to buy)	$77.2	A	62020	Acquired	2011-05-06	Common Stock (62020)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	2033	Indirect