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*
Shin Hak Cheol

(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)
Director 10% Owner
X Officer (give title below) Other (specify below)
EXEC VP INTERNATIONAL
3. Date of Earliest Transaction (Month/Day/Year)
02/16/2012
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 02/16/2012 M (1) 15,800 A $64.5 46,616 D
Common Stock 02/16/2012 F 11,626 D $87.65 34,990 D
Common Stock 02/16/2012 F 1,781 D $87.65 33,209 D
Common Stock 02/16/2012 M (1) 11,236 A $61.85 44,445 D
Common Stock 02/16/2012 F 7,928 D $87.65 36,517 D
Common Stock 02/16/2012 F 1,412 D $87.65 35,105 D
Common Stock 02/16/2012 S 5,900 D $87.49 29,205 D
Common Stock 02/16/2012 S 1,239 D $87.491 27,966 D
Common Stock 02/16/2012 S 2,262 D $87.5 25,704 D
Common Stock 02/16/2012 S 462 D $87.51 25,242 D
Common Stock 02/16/2012 S 216 D $87.52 25,026 D
Common Stock 02/16/2012 S 100 D $87.521 24,926 D
Common Stock 02/16/2012 S 200 D $87.53 24,726 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
Non-qualified Stock Option (Right to Buy) $64.5 02/16/2012 M (1) 15,800 05/15/2003 05/14/2012 Common Stock 15,800 $0 0 D
Non-qualified Stock Option (Right to Buy) $61.85 02/16/2012 M (1) 11,236 05/14/2004 05/12/2013 Common Stock 11,236 $0 0 D
Non-qualified Stock Option (Right to Buy) $87.65 02/16/2012 A 9,340 08/16/2012 05/13/2013 Common Stock 9,340 $87.65 9,340 D
Explanation of Responses:
1. This Form is being filed to report the exercise of two 3M stock options for a total of 27,036 shares by means of a stock swap. A stock swap is a method of exercising a stock option in which the option holder attests to the ownership of enough shares of stock already owned by the option holder to cover the exercise price of the option being exercised. As a result of these stock swaps, the reporting person acquired ownership of an additional 4,289 shares of 3M common stock. As a result of this transaction, 3,193 shares were sold to pay withholding taxes to the respective government agencies.
George Ann Biros, attorney-in-fact for Hak Cheol Shin 02/21/2012
** 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).
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