3M CO — Director's Dealing 2006

Feb 7, 2006

SEC Form 5 — Annual Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2005-12-31

Reporting Person: MORRISON ROBERT S (Director, INTERIM CHAIRMAN & CEO)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	4280	Direct
Common Stock	95	Indirect
Common Stock	4683	Indirect

Footnotes

F1: The directly-held common stock holding reported in Table I includes shares acquired during the fiscal year pursuant to
3M's General Employee Stock Purchase Plan.

F2: The indirectly-held common stock holding (401k/PAESOP) reported in Table I includes shares acquired during the fiscal year
pursuant to the 3M Voluntary Investment Plan.

F3: The indirectly-held common stock holding (by Corporation) reported in Table I includes deferred dividend reinvestment shares
acquired pursuant to the 3M's Director Compensation Plan.