Gregory B. Cook - 18 Feb 2026 Form 4 Insider Report for ECOLAB INC. (ECL)

Signature
/s/ Corinne Lawson, as Attorney-in-Fact for Gregory B. Cook
Issuer symbol
ECL
Transactions as of
18 Feb 2026
Net transactions value
-$323,154
Form type
4
Filing time
20 Feb 2026, 16:43:13 UTC
Previous filing
05 Dec 2025
Next filing
27 Feb 2026

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Cook Gregory B EVP & PRES - INST GROUP 1 ECOLAB PLACE, ST. PAUL /s/ Corinne Lawson, as Attorney-in-Fact for Gregory B. Cook 20 Feb 2026 0001989181

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ECL Common Stock Award $0 +3,388 +37% $0.000000 12,458 18 Feb 2026 Direct
transaction ECL Common Stock Tax liability $323,154 -1,066 -8.6% $303.15 11,392 18 Feb 2026 Direct F1
holding ECL Common Stock 3,556 18 Feb 2026 By Ecolab Savings Plan F2
* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id Content
F1 Reflects the reporting person's payment of minimum statutory tax obligations by withholding shares of Ecolab Common Stock incident to the vesting of performance-based restricted stock units in accordance with Rule 16b-3.
F2 Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of January 31, 2026. Includes 23.649 UNITS acquired since the reporting person's last report. (The 3,556.129 UNITS are the equivalent of approximately 6,519 SHARES of the issuer's Common Stock.)