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

  3/8/22  Clarkston Capital Partners, LLC   SC 13G/A               1:153K US Ecology, Inc.                  Warner Norcross… Judd/FA 
          Clarkston Capital Partners, LLC³
          Clarkston Companies, Inc.³
          Gerald W. Hakala³
          Jeffrey A. Hakala³
          Jeremy J. Modell³
          Modell Capital LLC³
 2/10/22  Clarkston Capital Partners, LLC   SC 13G                 2:168K US Ecology, Inc.                  Warner Norcross… Judd/FA 
          Clarkston Capital Partners, LLC³
          Clarkston Companies, Inc.³
          Gerald W. Hakala³
          Jeffrey A. Hakala³
          Jeremy J. Modell³
          Modell Capital LLC³
 2/10/22  Clarkston Capital Partners, LLC   SC 13G                 2:168K US Ecology, Inc.                  Warner Norcross… Judd/FA 
          Clarkston Capital Partners, LLC³
          Clarkston Companies, Inc.³
          Gerald W. Hakala³
          Jeffrey A. Hakala³
          Jeremy J. Modell³
          Modell Capital LLC³

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¹	Filing/Form Type:
	SC 13G	Statement of Acquisition of Beneficial Ownership by a “Passive” Investor — Schedule 13G.
	/A	Amendment to, or Amended version of, a previous Filing of this Type.
³	Group Member:  A Registrant or non-Registrant party to this Filing made by a Group.