As Of	Filer	Filing¹	For·On·As	Docs:Size	Issuer		Filing Agent

  4/4/23  Larson Michael                    4          Director²   2:10K  Ecolab Inc.                       SEC Connect              
 10/2/18  Larson Michael                    4          Director²   2:8K   Ecolab Inc.                       Section16 Direct/FA      
  4/3/18  Larson Michael                    4          Director²   2:8K   Ecolab Inc.                       Section16 Direct/FA      
  3/5/12  Larson Michael                    3          Director²   2:7K   Ecolab Inc.                       Section16 Direct/FA      
 8/25/11  Bill & Melinda Gates Foundati… Tr 3          Other²      2:7K   Ecolab Inc.                       CT’s hCue/FA             
 8/25/11  Gates William H III               3          %Own.,Oth.² 3:10K  Ecolab Inc.                       CT’s hCue/FA             
          Cascade Investment LLC

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¹	Filing/Form Types:  /A
	3	Initial Statement of Beneficial Ownership of Securities by an Insider — Form 3 { The Filer is an Insider² of the Issuer }.
	4	Statement of Changes in Beneficial Ownership of Securities by an Insider — Form 4 { The Filer is an Insider² of the Issuer }.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.