3M CO — Director's Dealing 2024

May 3, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: 3M CO (MMM)
CIK: 0000066740
Period of Report: 2024-05-01

Reporting Person: Dickson Zoe L (EVP & Chief HR Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-05-01	Common Stock	M	983	$98.44	Acquired	4504.2641	Direct
2024-05-01	Common Stock	F	301	$98.44	Disposed	4203.2641	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-05-01	Restricted Stock Units	$	M	983	Disposed		Common Stock (983)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	289	Indirect

Footnotes

F1: Includes dividend share equivalents, accrued quarterly, pursuant to 3M's Deferred Compensation Plan.

F2: Includes shares acquired under 3M's General Employee Stock Purchase Plan.

F3: Each restricted stock unit represents a contingent right to receive one share of 3M common stock.

F4: The final tranche of this restricted stock unit will vest on April 1, 2026.