3M CO — Director's Dealing 2006

May 11, 2006

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2006-05-09

Reporting Person: ALVARADO LINDA G (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2006-05-09	Common Stock	A	1255	$75.69	Acquired	6169	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	5227	Indirect