Ownership Submission
FORM 4
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
YEOMANS JAN L
   2. Issuer Name and Ticker or Trading Symbol
3M CO [MMM] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
VICE PRESIDENT AND TREASURER
(Last)
(First)
(Middle)
3M CENTER		 3. Date of Earliest Transaction (Month/Day/Year)
05/05/2006
(Street)

ST. PAUL, MN 55144-1000		 4. If Amendment, Date Original Filed(Month/Day/Year)
 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)		 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code
(Instr. 8)		 4. Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4 and 5)		 5. Amount of Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 3 and 4)		 6. Ownership Form: Direct (D) or Indirect (I)
(Instr. 4)		 7. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V Amount (A) or (D) Price
Common Stock 05/05/2006   M   3,172 A $ 31.5175 60,513 D  
Common Stock 05/05/2006   F   1,150 D $ 86.92 59,363 D  
Common Stock 05/05/2006   M   8,828 A $ 62.85 68,191 D  
Common Stock 05/05/2006   F   6,383 D $ 86.92 61,808 D  
Common Stock 05/05/2006   F   799 D $ 86.92 61,009 D  
Common Stock 05/05/2006   M   1,153 A $ 59.575 62,162 D  
Common Stock 05/05/2006   F   790 D $ 86.92 61,372 D  
Common Stock 05/05/2006   F   118 D $ 86.92 61,254 D  
Common Stock 05/05/2006   M   3,968 A $ 59.575 65,222 D  
Common Stock 05/05/2006   F   2,719 D $ 86.92 62,503 D  
Common Stock 05/05/2006   F   408 D $ 86.92 62,095 D  
Common Stock 05/05/2006   M   28,000 A $ 61.85 90,095 D  
Common Stock 05/05/2006   F   19,924 D $ 86.92 70,171 D  
Common Stock 05/05/2006   F   3,008 D $ 86.92 67,163 D  
Common Stock 05/05/2006   M   9,962 A $ 62.85 77,125 D  
Common Stock 05/05/2006   F   7,203 D $ 86.92 69,922 D  
Common Stock 05/05/2006   F   902 D $ 86.92 69,020 D  
Common Stock 05/05/2006   M   15,000 A $ 62.85 84,020 D  
Common Stock 05/05/2006   F   10,846 D $ 86.92 73,174 D  
Common Stock 05/05/2006   F   1,358 D $ 86.92 71,816 D  
Common Stock 05/05/2006   M   3,622 A $ 64.5 75,438 D  
Common Stock 05/05/2006   F   2,687 D $ 86.92 72,751 D  
Common Stock 05/05/2006   F   305 D $ 86.92 72,446 D  
Common Stock               2,622 I by 401k/PAESOP Trust

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
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Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned
(e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 3)		 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (Month/Day/Year) 3A. Deemed Execution Date, if any (Month/Day/Year) 4. Transaction Code
(Instr. 8)		 5. Number of Derivative Securities Acquired (A) or Disposed of (D)
(Instr. 3, 4, and 5)		 6. Date Exercisable and Expiration Date
(Month/Day/Year)		 7. Title and Amount of Underlying Securities
(Instr. 3 and 4)		 8. Price of Derivative Security
(Instr. 5)		 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s)
(Instr. 4)		 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 4)		 11. Nature of Indirect Beneficial Ownership
(Instr. 4)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
Incentive Stock Option (right to buy) $ 31.5175 05/05/2006   M     3,172 05/14/1997 05/14/2006 Common Stock 3,172 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 59.575 05/05/2006   M     1,153 11/07/2001 05/13/2007 Common Stock 1,153 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 59.575 05/05/2006   M     3,968 11/07/2001 05/12/2008 Common Stock 3,968 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 61.85 05/05/2006   M     28,000 05/14/2004 05/12/2013 Common Stock 28,000 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 62.85 05/05/2006   M     8,828 10/26/2002 05/12/2006 Common Stock 8,828 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 62.85 05/05/2006   M     9,962 10/26/2002 05/08/2009 Common Stock 9,962 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 62.85 05/05/2006   M     15,000 10/26/2002 05/07/2010 Common Stock 15,000 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 64.5 05/05/2006   M     3,622 05/15/2003 05/14/2012 Common Stock 3,622 $ 0 28,978 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   908   11/05/2006 05/11/2007 Common Stock 908 $ 0 908 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   3,127   11/05/2006 05/12/2008 Common Stock 3,127 $ 0 3,127 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   8,105   11/05/2006 05/11/2009 Common Stock 8,105 $ 0 8,105 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   12,204   11/05/2006 05/07/2010 Common Stock 12,204 $ 0 12,204 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   2,992   11/05/2006 05/14/2012 Common Stock 2,992 $ 0 2,992 D  
Non-Qualified Stock Option (right to buy) $ 86.95 05/05/2006   A   22,932   11/05/2006 05/13/2013 Common Stock 22,932 $ 0 22,932 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
YEOMANS JAN L
3M CENTER
ST. PAUL, MN 55144-1000		       VICE PRESIDENT AND TREASURER  

Signatures

 By: George Ann Biros For: Janet L Yeomans   05/08/2006
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
 
Remarks:
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 during the fiscal year pursuant to 3M's General Employee Stock Purchase Plan.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.

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