Kevin H. Rhodes - 01 Oct 2025 Form 4 Insider Report for 3M CO (MMM)

Role: EVP, Chief Legal Off & Secret
Signature: Patricia L. Meagher, attorney-in-fact for Kevin H. Rhodes
Issuer symbol: MMM
Transactions as of: 01 Oct 2025
Net transactions value: -$31,668
Form type: 4
Filing time: 02 Oct 2025, 16:30:38 UTC
Previous filing: 21 May 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Rhodes Kevin H	EVP, Chief Legal Off & Secret	3M CENTER, ST. PAUL	Patricia L. Meagher, attorney-in-fact for Kevin H. Rhodes	02 Oct 2025	0001901300

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	MMM	Common Stock	Options Exercise		+203	+1.3%		15,400	01 Oct 2025	Direct	F1
transaction	MMM	Common Stock	Tax liability	$31,668	-203	-1.3%	$156.00	15,197	01 Oct 2025	Direct	F2

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	MMM	Restricted Stock Units	Options Exercise		-203	-4.1%		4,718	01 Oct 2025	Common Stock	203		Direct	F1, F3

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Each restricted stock unit represents a contingent right to receive one share of 3M common stock.
F2	Shares withheld for FICA tax for retirement eligible executives.
F3	The restricted stock units vest 100% three years from the grant date.