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 *
GRENZ M KAY
  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 HR
(Last)
(First)
(Middle)
3. Date of Earliest Transaction (Month/Day/Year)
02/16/2005
(Street)

 
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 02/16/2005   M   3,316 A $ 64.875 55,268 D  
Common Stock 02/16/2005   M   601 A $ 84 55,869 D  
Common Stock 02/16/2005   M   12,739 A $ 61.85 68,608 D  
Common Stock 02/16/2005   F   9,143 D $ 86.175 59,465 D  
Common Stock 02/16/2005   F   1,175 D $ 86.175 58,290 D  
Common Stock 02/16/2005   M   23,122 A $ 61.85 81,412 D  
Common Stock 02/16/2005   F   16,595 D $ 86.175 64,817 D  
Common Stock 02/16/2005   F   2,786 D $ 86.175 62,031 D  
Common Stock 02/16/2005   M   8,942 A $ 63.225 70,973 D  
Common Stock 02/16/2005   F   6,560 D $ 86.175 64,413 D  
Common Stock 02/16/2005   F   1,016 D $ 86.175 63,397 D  
Common Stock 02/16/2005   M   6,876 A $ 63.225 70,273 D  
Common Stock 02/16/2005   F   5,044 D $ 86.175 65,229 D  
Common Stock 02/16/2005   F   781 D $ 86.175 64,448 D  
Common Stock 02/16/2005   M   7,330 A $ 63.225 71,778 D  
Common Stock 02/16/2005   F   5,377 D $ 86.175 66,401 D  
Common Stock 02/16/2005   F   833 D $ 86.175 65,568 D  
Common Stock 02/16/2005   M   10,796 A $ 64.5 76,364 D  
Common Stock 02/16/2005   F   8,080 D $ 86.175 68,284 D  
Common Stock 02/16/2005   F   1,159 D $ 86.175 67,125 D  
Common Stock 02/16/2005   S   3,316 D $ 85.91 63,809 D  
Common Stock 02/16/2005   S   601 D $ 85.91 63,208 D  
Common Stock               3,857 I by 401k/PAESOP Trust
Common Stock               462 I by Daughter

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
Non-Qualified Stock Option (right to buy) $ 61.85 02/16/2005   M     12,739 05/14/2004 05/12/2013 Common Stock 12,739 $ 0 23,122 D  
Non-Qualified Stock Option (right to buy) $ 61.85 02/16/2005   M     23,122 05/14/2004 05/12/2013 Common Stock 23,122 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 63.225 02/16/2005   M     6,876 12/11/2002 05/11/2007 Common Stock 6,876 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 63.225 02/16/2005   M     8,942 12/11/2002 05/12/2008 Common Stock 8,942 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 63.225 02/16/2005   M     7,330 12/11/2002 05/07/2010 Common Stock 7,330 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 64.5 02/16/2005   M     10,796 05/15/2003 05/14/2012 Common Stock 10,796 $ 0 33,204 D  
Non-Qualified Stock Option (right to buy) $ 64.875 02/16/2005   M     3,316 12/17/2003 05/06/2005 Common Stock 3,316 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 84 02/16/2005   M     601 11/14/2004 05/06/2005 Common Stock 601 $ 0 0 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   5,825   08/16/2005 05/11/2007 Common Stock 5,825 $ 0 5,825 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   7,576   08/16/2005 05/12/2008 Common Stock 7,576 $ 0 7,576 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   6,210   08/16/2005 05/07/2010 Common Stock 6,210 $ 0 6,210 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   9,239   08/16/2005 05/14/2012 Common Stock 9,239 $ 0 9,239 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   10,318   08/16/2005 05/13/2013 Common Stock 10,318 $ 0 10,318 D  
Non-Qualified Stock Option (right to buy) $ 86.2 02/16/2005   A   19,381   08/16/2005 05/13/2013 Common Stock 19,381 $ 0 29,699 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
GRENZ M KAY

 
      VICE PRESIDENT HR  

Signatures

 By: George Ann Biros For: M Kay Grenz   02/16/2005
**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).

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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