ECOLAB INC. — Director's Dealing 2024

Aug 30, 2024

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ECOLAB INC. (ECL)
CIK: 0000031462
Period of Report: 2024-08-29

Reporting Person: Cook Gregory B (N/A)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2024-08-29	Common Stock	M	1576	$119.120	Acquired	9655.580	Direct
2024-08-29	Common Stock	M	2235	$117.730	Acquired	11890.580	Direct
2024-08-29	Common Stock	S	3811	$249.330	Disposed	8079.5800	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2024-08-29	Employee Stock Option (Right to Buy)	$119.12	M	1576	Disposed	2025-12-02	Common Stock (1576)	Direct
2024-08-29	Employee Stock Option (Right to Buy)	$117.73	M	2235	Disposed	2026-12-07	Common Stock (2235)	Direct

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	3420.728	Indirect

Footnotes

F1: The total includes 37.679 shares resulting from automatic dividend reinvestment in transactions exempt pursuant to Rule 16a-11 under Section 16 of the Securities Exchange Act of 1934 since the reporting person's last report.

F2: Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of July 31, 2024. Includes 63.569 UNITS acquired since the reporting person's last report. (The 3,420.728 UNITS are the equivalent of approximately 6,279 shares of the issuer's Common Stock.)

F3: Option granted under the Ecolab Inc. 2010 Stock Incentive Plan. The option became or becomes 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.