SEC FORM 3

SEC Form 3

FORM 3

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

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

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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1. Name and Address of Reporting Person^*

Shafer Stephen M

(Last)

(First)

(Middle)

3M CENTER

(Street)

MAPLEWOOD

55144

(City)

(State)

(Zip)

2. Date of Event Requiring Statement (Month/Day/Year)
04/01/2019

3. Issuer Name and Ticker or Trading Symbol
3M CO [ MMM ]

4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
Senior VP-Bus Dev-Marketing

5. 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 Beneficially Owned
1. Title of Security (Instr. 4)	2. Amount of Securities Beneficially Owned (Instr. 4)	3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	4. Nature of Indirect Beneficial Ownership (Instr. 5)
Common Stock	812.2711⁽¹⁾	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
1. Title of Derivative Security (Instr. 4)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares	4. Conversion or Exercise Price of Derivative Security	5. Ownership Form: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
Restricted Stock Units	⁽²⁾	⁽²⁾	Common Stock	1,298	⁽³⁾	D
Non-qualified Stock Option (Right to Buy)	02/05/2014	02/03/2023	Common Stock	3,145	101.49	D
Non-qualified Stock Option (Right to Buy)	02/04/2015	02/02/2024	Common Stock	2,338	126.72	D
Non-qualified Stock Option (Right to Buy)	02/03/2016	02/03/2025	Common Stock	4,090	165.94	D
Non-qualified Stock Option (Right to Buy)	02/02/2017	02/02/2026	Common Stock	5,964	147.87	D
Non-qualified Stock Option (Right to Buy)	02/06/2018	02/06/2027	Common Stock	12,882	175.76	D
Non-qualified Stock Option (Right to Buy)	02/06/2019	02/04/2028	Common Stock	7,279	233.63	D
Non-qualified Stock Option (Right to Buy)	02/05/2020	02/04/2029	Common Stock	7,400	201.12	D

Explanation of Responses:

1. Includes shares acquired under 3M's General Employee Stock Purchase Plan.

2. The restricted stock units will vest 100% five years from the grant date of 06/01/2015

3. Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

	/s/ Sheila B. Claugherty, attorney-in-fact for Mr. Shafer	04/08/2019
	** 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 5 (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.