Lionel L. Nowell III - 30 Sep 2025 Form 4 Insider Report for ECOLAB INC. (ECL)

Role: Director
Signature: /s/ Corinne Lawson, as Attorney-in-Fact for Lionel L. Nowell, III
Issuer symbol: ECL
Transactions as of: 30 Sep 2025
Net transactions value: $0
Form type: 4
Filing time: 02 Oct 2025, 16:46:00 UTC
Previous filing: 02 Jul 2025
Next filing: 05 Jan 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
NOWELL LIONEL L III	Director	C/O ECOLAB INC., 1 ECOLAB PLACE, ST. PAUL	/s/ Corinne Lawson, as Attorney-in-Fact for Lionel L. Nowell, III	02 Oct 2025	0001180436

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ECL	Common Stock	Award	$0	+123	+2%	$0.000000	6,328	30 Sep 2025	Direct	F1

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

Explanation of Responses:

Id	Content
F1	Includes 14.79 shares acquired pursuant to a dividend reinvestment feature of the Ecolab Inc. 2001 Non-Employee Director Stock Option and Deferred Compensation Plan.