3M CO — Director's Dealing 2009

May 20, 2009

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2009-05-19

Reporting Person: YEOMANS JAN L (VICE PRESIDENT AND TREASURER)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2009-05-19	Common Stock	S	2500	$59.40	Disposed	68083	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3275	Indirect

Footnotes

F1: Includes shares acquired under 3M's General Employee Stock Purchase Plan.

F2: Includes shares acquired during the fiscal year pursuant to the 3M Voluntary Investment Plan.