3M (MMM) Form 4 3M / Marlene Mary McGrath ownership change

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^*

McGrath Marlene Mary

(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)
Senior VP - Human Resources

3. Date of Earliest Transaction (Month/Day/Year)
05/18/2017

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	05/18/2017		M		3,573	A	$89.47	24,480	D
Common Stock	05/18/2017		S		56	D	$194.9301	24,424	D
Common Stock	05/18/2017		S		1,300	D	$194.931	23,124	D
Common Stock	05/18/2017		S		100	D	$194.94	23,024	D
Common Stock	05/18/2017		S		700	D	$194.942	22,324	D
Common Stock	05/18/2017		S		1,417	D	$194.9556	20,907	D
Common Stock	05/18/2017		M		5,360	A	$87.89	26,267	D
Common Stock	05/18/2017		S		589	D	$194.79	25,678	D
Common Stock	05/18/2017		S		200	D	$194.8	25,478	D
Common Stock	05/18/2017		S		971	D	$194.8155	24,507	D
Common Stock	05/18/2017		S		300	D	$194.82	24,207	D
Common Stock	05/18/2017		S		200	D	$194.83	24,007	D
Common Stock	05/18/2017		S		1,100	D	$194.84	22,907	D
Common Stock	05/18/2017		S		600	D	$194.8401	22,307	D
Common Stock	05/18/2017		S		200	D	$194.841	22,107	D
Common Stock	05/18/2017		S		300	D	$194.845	21,807	D
Common Stock	05/18/2017		S		400	D	$194.853	21,407	D
Common Stock	05/18/2017		S		500	D	$194.865	20,907	D
Common Stock	05/18/2017		M		3,573	A	$89.47	24,480	D
Common Stock	05/18/2017		S		56	D	$194.9301	24,424	D
Common Stock	05/18/2017		S		1,300	D	$194.931	23,124	D
Common Stock	05/18/2017		S		100	D	$194.94	23,024	D
Common Stock	05/18/2017		S		700	D	$194.942	22,324	D
Common Stock	05/18/2017		S		1,417	D	$194.9556	20,907	D
Common Stock	05/18/2017		M		5,360	A	$87.89	26,267	D
Common Stock	05/18/2017		S		589	D	$194.79	25,678	D
Common Stock	05/18/2017		S		200	D	$194.8	25,478	D
Common Stock	05/18/2017		S		971	D	$194.8155	24,507	D
Common Stock	05/18/2017		S		300	D	$194.82	24,207	D
Common Stock	05/18/2017		S		200	D	$194.83	24,007	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)(1)	$89.47	05/18/2017		M			3,573	02/08/2012	02/08/2021	Common Stock	3,573	$0	0	D
Non-qualified Stock Option (Right to Buy)(2)	$87.89	05/18/2017		M			5,360	02/07/2013	02/07/2022	Common Stock	5,360	$0	0	D

Explanation of Responses:

1. This option becomes exercisable in equal installments on each of the first three anniversaries of the grant date (2/8/2011).

2. This option becomes exercisable in equal installments on each of the first three anniversaries of the grant date (2/5/2013).

Remarks:

1 of 2

	/s/ Sheila B. Claugherty, attorney-in-fact for Marlene M. McGrath	05/19/2017
	** 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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