Harpreet Saluja - 03 Dec 2025 Form 4 Insider Report for ECOLAB INC. (ECL)

Role: EVP - CORP STRAT & BUS DEV
Signature: /s/ Youhao Dong, as Attorney-in-Fact for Harpreet Saluja
Issuer symbol: ECL
Transactions as of: 03 Dec 2025
Net transactions value: -$107,273
Form type: 4
Filing time: 05 Dec 2025, 16:13:06 UTC
Previous filing: 30 Oct 2025
Next filing: 18 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Saluja Harpreet	EVP - CORP STRAT & BUS DEV	1 ECOLAB PLACE, SAINT PAUL	/s/ Youhao Dong, as Attorney-in-Fact for Harpreet Saluja	05 Dec 2025	0002044800

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ECL	Common Stock	Options Exercise	$0	+1,331		$0.000000	1,331	04 Dec 2025	Direct
transaction	ECL	Common Stock	Tax liability	$107,273	-407	-31%	$263.38	924	04 Dec 2025	Direct	F1

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	ECL	Employee Stock Option (Right to Buy)	Award	$0	+5,954		$0.000000	5,954	03 Dec 2025	Common Stock	5,954	$268.52	Direct	F2
transaction	ECL	Restricted Stock Units	Options Exercise		-1,331	-33%		2,662	04 Dec 2025	Common Stock	1,331		Direct	F3

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

Explanation of Responses:

Id	Content
F1	Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of restricted stock units in accordance with Rule 16b-3.
F2	The option will be exercisable, on a cumulative basis, as to one-third of the option shares (excluding any fractional portion less than one share), on each of the first and second anniversaries of the date of grant and as to the remaining shares on the third anniversary of the date of grant. The date listed in the Date Exercisable column is the first anniversary of the date of grant.
F3	Represents the first (out of three) vesting of units from an initial grant of 3,993 restricted stock units made on December 4, 2024. The vesting schedule for the original grant provided for the units to vest, subject to continued employment, as to one-third of the units (excluding any fractional portion less than one unit), on each of the first and second anniversaries of the date of grant and as to the remaining units on the third anniversary of the date of grant. Restricted stock units convert into common stock on a one-for-one basis.