ECOLAB INC. — Director's Dealing 2025

Dec 5, 2025

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC. (ECL)
CIK: 0000031462
Period of Report: 2025-12-03

Reporting Person: Clark Benjamin M. (N/A)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2025-12-03	Employee Stock Option (Right to Buy)	$268.515	A	4872	Acquired	2035-12-03	Common Stock (4872)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	82.581	Direct

Footnotes

F1: The reporting person's end of period holdings includes 2 shares added in the aggregate by dividend reinvestment on August 11, 2025.

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.