Amended Statement of Beneficial Ownership (3/a)

FORM 3	UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES	OMB APPROVAL OMB Number: 3235-0104 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 * Chavez Rodriguez Beatriz Karina	2. Date of Event Requiring Statement (MM/DD/YYYY) 11/1/2021	3. Issuer Name and Ticker or Trading Symbol 3M CO [MMM]
(Last)        (First)        (Middle) 3M CENTER	4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director                          _____ 10% Owner ___X___ Officer (give title below)        _____ Other (specify below) Senior Vice President /
(Street) ST. PAUL, MN 55144       (City)              (State)              (Zip)	5. If Amendment, Date Original Filed(MM/DD/YYYY) 11/5/2021	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	2209.385	D
Common Stock	2808.9172 (1)	D

Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivate Security (Instr. 4)	2. Date Exercisable and Expiration Date (MM/DD/YYYY)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Non-qualified Stock Option (Right to Buy)	2/5/2014 (2)	2/4/2023	Common Stock	1071	$101.49	D
Non-qualified Stock Option (Right to Buy)	2/4/2015 (2)	2/3/2024	Common Stock	2921	$126.72	D
Non-qualified Stock Option (Right to Buy)	2/3/2016 (2)	2/2/2025	Common Stock	1447	$165.94	D
Restricted Stock Units	2/4/2022	(3)	Common Stock	671	(4)	D
Restricted Stock Units	2/3/2023	(3)	Common Stock	705	(4)	D
Restricted Stock Units	2/2/2024	(3)	Common Stock	286	(4)	D
Restricted Stock Units	7/1/2024	(3)	Common Stock	1507	(4)	D
Non-qualified Stock Option (Right to Buy)	2/2/2022 (2)	2/1/2031	Common Stock	1975	$175.02	D

Explanation of Responses:
(1)	Includes shares acquired under 3M's General Employee Stock Purchase Plan.
(2)	The stock option will vest and become exercisable in a series of three equal installments on the first, second and third anniversary of the grant date.
(3)	The restricted stock units vest 100% three years from the grant date.
(4)	Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

Remarks: Exhibit Index: 24.1 Power of Attorney

Reporting Owners
Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Chavez Rodriguez Beatriz Karina 3M CENTER ST. PAUL, MN 55144			Senior Vice President

Signatures
Patricia L. Meagher, attorney-in-fact for Beatriz Karina Chavez Rodriguez		11/5/2021
**Signature of Reporting Person		Date