3M CO — Director's Dealing 2021

May 3, 2021

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2021-04-30

Reporting Person: Fong Ivan K (Exec VP, Gen Counsel & Secret)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2021-04-30	Common Stock	M	12059	$89.25	Acquired	47872.4023	Direct
2021-04-30	Common Stock	S	12059	$198.46	Disposed	35813.4023	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2021-04-30	Non-qualified Stock Option (Right to Buy)	$89.25	M	12059	Disposed	2022-11-01	Common Stock (12059)	Direct

Footnotes

F1: The sale reported in this Form 4 was effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on February 9, 2021.

F2: Includes shares acquired pursuant to 3M's Dividend Reinvestment Plan.

F3: Includes shares acquired under 3M's General Employee Stock Purchase Plan.