X0306 4 2020-02-26 0 0000031462 ECOLAB INC. ECL 0001433832 Berger Larry L 1 ECOLAB PLACE SAINT PAUL MN 55102 0 1 0 0 EVP & CTO Common Stock 2020-02-26 4 A 0 3496 0 A 32928 D Common Stock 2020-02-26 4 F 0 1595 195.74 D 31333 D Common Stock 71.536 I By Ecolab Savings Plan 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. Number of UNITS in the Ecolab Stock Fund of the Ecolab Savings Plan (401(k) Plan) as of January 31, 2020. (The 71.536 UNITS are the equivalent of approximately 131 SHARES of the issuer's Common Stock.) /s/ David F. Duvick, as Attorney-in-Fact for Larry L. Berger 2020-02-28