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: Kirkland Scott D (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	15697	Acquired	2035-12-03	Common Stock (15697)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	11529.846	Direct
Common Stock	1442.291	Indirect

Footnotes

F1: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of November 30, 2025. Includes 6.887 UNITS acquired since the reporting person's last report. (The 1,442.291 UNITS are the equivalent of approximately 2,646 SHARES of the issuer's Common Stock.)

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.