X0202 5 2005-12-31 1 0 0 0000066740 3M CO MMM 0001197788 WIENS HAROLD J 3M CENTER ST. PAUL MN 55144-1000 0 1 0 0 EXEC VP TRANSPORTATION Common Stock 2005-12-23 5 G 0 2244 0 D 63042 D Common Stock 2083 I by 401k/PAESOP Trust Non-Qualified Stock Option (right to buy) 84.8 2005-05-09 5 J 0 3421 0 D 2004-11-06 2005-05-06 Common Stock 3421 0 D This transaction is an expiration of an employee stock option. No value was received by the reporting person for the expiration and it is being reported voluntarily for informational purposes. The expiration is exempt from the short-swing profits recovery provisions pursuant to Rule 16b-6(d) and is exempt from the reporting requirements pursuant to Rule 16a-4(d). 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. The directly-held common stock holding reported in Table I includes shares acquired pursuant to 3M's Dividend Reinvestment Program in transactions exempt from Section 16; this total also includes shares acquired during the fiscal year pursuant to 3M's General Employee Stock Purchase Plan. By: George Ann Biros For: Harold James Wiens 2006-02-07