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
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                      	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(f) of the Investment Company Act of 1940	                      	

1. Name and Address of Reporting Person *

BUCKLEY GEORGE W	2. Issuer Name and Ticker or Trading Symbol

3M CO [ MMM ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable)

__ X __ Director                      _____ 10% Owner
__ X __ Officer (give title below)      _____ Other (specify below)
CHAIRMAN OF THE BOARD & CEO	
(Last)          (First)          (Middle)

3M CENTER	3. Date of Earliest Transaction (MM/DD/YYYY)

2/10/2012		
(Street)

ST. PAUL, MN 55144-1000
(City)        (State)        (Zip)	4. If Amendment, Date Original Filed (MM/DD/YYYY)

 	6. Individual or Joint/Group Filing (Check Applicable Line)

_ X _ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person	

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned	
1.Title of Security
(Instr. 3)	2. Trans. Date	2A. Deemed Execution Date, if any	3. Trans. 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  	2/10/2012  	 	S	  	428  	D	$86.8575  	405309  	D  	 	
Common Stock  	2/10/2012  	 	S	  	572  	D	$86.859  	404737  	D  	 	
Common Stock  	2/10/2012  	 	S	  	3888  	D	$86.86  	400849  	D  	 	
Common Stock  	2/10/2012  	 	S	  	100  	D	$86.8618  	400749  	D  	 	
Common Stock  	2/10/2012  	 	S	  	13700  	D	$86.865  	387049  	D  	 	
Common Stock  	2/10/2012  	 	S	  	400  	D	$86.869  	386649  	D  	 	
Common Stock  	2/10/2012  	 	S	  	3000  	D	$86.87  	383649  	D  	 	
Common Stock  	2/10/2012  	 	S	  	9400  	D	$86.875  	374249  	D  	 	
Common Stock  	2/10/2012  	 	S	  	700  	D	$86.8775  	373549  	D  	 	
Common Stock  	2/10/2012  	 	S	  	130  	D	$86.879  	373419  	D  	 	
Common Stock  	2/10/2012  	 	S	  	4116  	D	$86.88  	369303  	D  	 	
Common Stock  	2/10/2012  	 	S	  	11861  	D	$86.885  	357442  	D  	 	
Common Stock  	2/10/2012  	 	S	  	700  	D	$86.8875  	356742  	D  	 	
Common Stock  	2/10/2012  	 	S	  	200  	D	$86.889  	356542  	D  	 	
Common Stock  	2/10/2012  	 	S	  	800  	D	$86.89  	355742  	D  	 	
Common Stock  	2/10/2012  	 	S	  	3700  	D	$86.895  	352042  	D  	 	
Common Stock  	2/10/2012  	 	S	  	100  	D	$86.8975  	351942  	D  	 	
Common Stock  	2/10/2012  	 	S	  	13143  	D	$86.9  	338799  	D  	 	
Common Stock  	2/10/2012  	 	S	  	6918  	D	$86.905  	331881  	D  	 	
Common Stock  	2/10/2012  	 	S	  	100  	D	$86.9075  	331781  	D  	 	
Common Stock  	2/10/2012  	 	S	  	100  	D	$86.909  	331681  	D  	 	
Common Stock  	2/10/2012  	 	S	  	3838  	D	$86.91  	327843  	D  	 	
Common Stock  	2/10/2012  	 	S	  	10800  	D	$86.915  	317043  	D  	 	
Common Stock  	2/10/2012  	 	S	  	200  	D	$86.9175  	316843  	D  	 	
Common Stock  	2/10/2012  	 	S	  	8972  	D	$86.92  	307871  	D  	 	
Common Stock  	2/10/2012  	 	S	  	11814  	D	$86.925  	296057  	D  	 	
Common Stock  	2/10/2012  	 	S	  	800  	D	$86.9275  	295257  	D  	 	
Common Stock  	2/10/2012  	 	S	  	200  	D	$86.929  	295057  	D  	 	
Common Stock  	2/10/2012  	 	S	  	3660  	D	$86.93  	291397  	D  	 	
Common Stock  	2/10/2012  	 	S	  	6210  	D	$86.935  	285187  	D  	 	

Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities)	
1. Title of Derivate Security
(Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Trans. Date	3A. Deemed Execution Date, if any	4. Trans. 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	7. Title and Amount of Securities Underlying Derivative Security
(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					

Explanation of Responses:	

Reporting Owners	
Reporting Owner Name / Address	Relationships	
	Director	10% Owner	Officer	Other	
BUCKLEY GEORGE W
3M CENTER
ST. PAUL, MN 55144-1000	X		CHAIRMAN OF THE BOARD & CEO		

Signatures		
George Ann Biros, attorney-in-fact for George W. Buckley		2/13/2012	
** Signature of Reporting Person		Date

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.	
*	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.	
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.