ECOLAB INC. — Director's Dealing 2025

Nov 26, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC. (ECL)
CIK: 0000031462
Period of Report: 2025-11-24

Reporting Person: De Boo Alexander A. (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2025-11-24	Common Stock	M	2153	$119.120	Acquired	7147.604	Direct
2025-11-24	Common Stock	S	1422	$268.250	Disposed	5725.604	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-11-24	Employee Stock Option (Right to Buy)	$119.120	M	2153	Disposed	2025-12-02	Common Stock (2153)	Direct

Footnotes

F1: Option granted under the Ecolab Inc. 2010 Stock Incentive Plan. The option became 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.