Margeaux King - May 8, 2025 Form 3 Insider Report for ECOLAB INC. (ECL)

Role: EVP - Human Resources
Signature: /s/ Youhao Dong, as Attorney-in-Fact for Margeaux King
Stock symbol: ECL
Transactions as of: May 8, 2025
Transactions value $: $0
Form type: 3
Date filed: 5/14/2025, 05:18 PM
Previous filing: Aug 2, 2024
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
King Margeaux	EVP - Human Resources	1 ECOLAB PLACE, ST. PAUL	/s/ Youhao Dong, as Attorney-in-Fact for Margeaux King	2025-05-14	0001940649

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
holding	ECL	Common Stock						12	May 8, 2025	Direct

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
holding	ECL	Employee Stock Option (Right to Buy)							May 8, 2025	Common Stock	5.94K	$266.10	Direct	F1
holding	ECL	Restricted Stock Units							May 8, 2025	Common Stock	4.99K	$0.00	Direct	F2

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

Explanation of Responses:

Id	Content
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.

Content

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.

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.