ECOLAB INC. — Director's Dealing 2025

May 14, 2025

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: ECOLAB INC. (ECL)
CIK: 0000031462
Period of Report: 2025-05-08

Reporting Person: King Margeaux (N/A)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	12	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (Right to Buy)	$266.097	2035-04-25	Common Stock (5938)		Direct
Restricted Stock Units	$0		Common Stock (4988)		Direct

Footnotes

F1: 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.

F2: Each restricted stock unit represents a contingent right to receive one share of Ecolab Inc. common stock. The units will vest, subject to continued employment, on a cumulative basis, 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 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.