FORM 4 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 [ ] Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP OF SECURITIES OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5 Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940 1. Name and Address of Reporting Person * 2. Issuer Name and Ticker or Trading Symbol Hammes Eric D. 3M CO [ MMM ] (Last) (First) 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director 3. Date of Earliest Transaction (MM/DD/YYYY) (Middle) (Street) 4. If Amendment, Date Original Filed (MM/DD/YYYY) 6. Individual or Joint/Group Filing (Check Applicable Line) ST. PAUL, MN 55144-1000 (City) _____ Other (specify below) VP, Corp Controller & CAO 2/2/2016 3M CENTER _____ 10% Owner __ X __ Officer (give title below) (State) _ X _ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (Zip) 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) Code Common Stock 2/2/2016 A Common Stock 2/2/2016 F V 4. Securities Acquired (A) 5. Amount of Securities Beneficially Owned or Disposed of (D) Following Reported Transaction(s) (Instr. 3, 4 and 5) (Instr. 3 and 4) Amount (A) or (D) Price 1044.849 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) (1) A $0 2142 D 379 (1) D $0 1763 (2) D 7. Nature of Indirect Beneficial Ownership (Instr. 4) Table II - Derivative Securities Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivate 2. Security Conversion (Instr. 3) or Exercise Price of Derivative Security 3. Trans. Date 3A. Deemed 4. Trans. Code 5. Number of 6. Date Exercisable and Execution (Instr. 8) Derivative Securities Expiration Date Date, if any Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) Code Non-qualified Stock Option (Right to Buy) $147.87 2/2/2016 A V (A) 13497 (D) 7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4) Date Expiration Title Exercisable Date 2/2/2017 2/2/2026 (3) Common Stock 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) $0 13497 D Amount or Number of Shares 13497 11. Nature of Indirect Beneficial Ownership (Instr. 4) Explanation of Responses: ( Represents shares of 3M common stock that will be delivered imminently pursuant to the terms of a performance share award made to the reporting person on 1) 3/1/2013. The performance-based vesting requirements applicable to such award were satisfied on the date reported in Column 2 above, which represents the date on which the level of performance attained was certified. The number of shares withheld for taxes are estimated and will be revised by amendment, if necessary. ( Includes shares acquired under 3M's General Employee Stock Purchase Plan. 2) ( This option becomes exercisable in equal installments on each of the first three anniversaries of the grant date (2/2/2016). 3) Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Hammes Eric D. 3M CENTER ST. PAUL, MN 55144-1000 Other VP, Corp Controller & CAO Signatures /s/ Sheila B. Claugherty, attorney-in-fact for Eric D. Hammes 2/4/2016 ** 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.