Alexander A. De Boo - 03 Dec 2025 Form 4 Insider Report for ECOLAB INC. (ECL)

Signature
/s/ Youhao Dong, as Attorney-in-Fact for Alexander A. De Boo
Issuer symbol
ECL
Transactions as of
03 Dec 2025
Transactions value $
$0
Form type
4
Filing time
05 Dec 2025, 16:15:17 UTC
Previous filing
25 Nov 2025

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
De Boo Alexander A. EVP & PRES - GLOBAL MARKETS 1 ECOLAB PLACE, SAINT PAUL /s/ Youhao Dong, as Attorney-in-Fact for Alexander A. De Boo 05 Dec 2025 0001844358

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
holding ECL Common Stock 5.73K 03 Dec 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
transaction ECL Employee Stock Option (Right to Buy) Award $0 +4.87K $0.00 4.87K 03 Dec 2025 Common Stock 4.87K $268.52 Direct F1
* 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.