SEC FORM 4

SEC Form 4

FORM 4

UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934
or Section 30(h) of the Investment Company Act of 1940

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Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person^*

BUCKLEY GEORGE W

(Last)

(First)

(Middle)

3M CENTER

(Street)

ST. PAUL

55144-1000

(City)

(State)

(Zip)

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

3. Date of Earliest Transaction (Month/Day/Year)
02/10/2012

4. If Amendment, Date of 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

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)
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	Code	V	Amount	(A) or (D)	Price		6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
Common Stock	02/10/2012		S		428	D	$86.8575	405,309	D
Common Stock	02/10/2012		S		572	D	$86.859	404,737	D
Common Stock	02/10/2012		S		3,888	D	$86.86	400,849	D
Common Stock	02/10/2012		S		100	D	$86.8618	400,749	D
Common Stock	02/10/2012		S		13,700	D	$86.865	387,049	D
Common Stock	02/10/2012		S		400	D	$86.869	386,649	D
Common Stock	02/10/2012		S		3,000	D	$86.87	383,649	D
Common Stock	02/10/2012		S		9,400	D	$86.875	374,249	D
Common Stock	02/10/2012		S		700	D	$86.8775	373,549	D
Common Stock	02/10/2012		S		130	D	$86.879	373,419	D
Common Stock	02/10/2012		S		4,116	D	$86.88	369,303	D
Common Stock	02/10/2012		S		11,861	D	$86.885	357,442	D
Common Stock	02/10/2012		S		700	D	$86.8875	356,742	D
Common Stock	02/10/2012		S		200	D	$86.889	356,542	D
Common Stock	02/10/2012		S		800	D	$86.89	355,742	D
Common Stock	02/10/2012		S		3,700	D	$86.895	352,042	D
Common Stock	02/10/2012		S		100	D	$86.8975	351,942	D
Common Stock	02/10/2012		S		13,143	D	$86.9	338,799	D
Common Stock	02/10/2012		S		6,918	D	$86.905	331,881	D
Common Stock	02/10/2012		S		100	D	$86.9075	331,781	D
Common Stock	02/10/2012		S		100	D	$86.909	331,681	D
Common Stock	02/10/2012		S		3,838	D	$86.91	327,843	D
Common Stock	02/10/2012		S		10,800	D	$86.915	317,043	D
Common Stock	02/10/2012		S		200	D	$86.9175	316,843	D
Common Stock	02/10/2012		S		8,972	D	$86.92	307,871	D
Common Stock	02/10/2012		S		11,814	D	$86.925	296,057	D
Common Stock	02/10/2012		S		800	D	$86.9275	295,257	D
Common Stock	02/10/2012		S		200	D	$86.929	295,057	D
Common Stock	02/10/2012		S		3,660	D	$86.93	291,397	D
Common Stock	02/10/2012		S		6,210	D	$86.935	285,187	D

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 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: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
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)	Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	8. Price of Derivative Security (Instr. 5)		10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)

Explanation of Responses:

	George Ann Biros, attorney-in-fact for George W. Buckley	02/13/2012
	** 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 Number.