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 MN 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)
Code V Amount (A) or (D) Price
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)
Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares
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.