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

 6/12/23  Foda Sherif                       4          Director²   2:13K  Energy Recovery, Inc.             Energy Recovery, Inc.    
 2/22/23  Energy Recovery, Inc.             10-K       12/31/22  101:15M                                                             
 9/16/22  Foda Sherif                       4          Director²   2:10K  Energy Recovery, Inc.             Energy Recovery, Inc.    
 9/12/22  Energy Recovery, Inc.             S-3ASR      9/12/22    6:1.4M                                                            
 6/13/22  Foda Sherif                       4          Director²   2:8K   Energy Recovery, Inc.             Energy Recovery, Inc.    
 2/24/22  Energy Recovery, Inc.             10-K       12/31/21  103:29M                                                             
11/29/21  Foda Sherif                       4          Director²   2:12K  Energy Recovery, Inc.             Energy Recovery, Inc.    
 9/15/21  Foda Sherif                       4          Director²   2:10K  Energy Recovery, Inc.             Energy Recovery, Inc.    
 6/10/21  Foda Sherif                       4          Director²   2:8K   Energy Recovery, Inc.             Energy Recovery, Inc.    
 3/31/21  Energy Recovery, Inc.             S-8         3/31/21    3:220K                                                            
 3/24/21  Nat’l Energy Svcs Reunited Corp.  20-F       12/31/20  111:13M                                    M2 Compliance LLC/FA     
 3/12/21  Energy Recovery, Inc.             10-K       12/31/20  110:12M                                                             
 7/10/19  Foda Sherif                       4          Director²   2:11K  Energy Recovery, Inc.             RDG Filings/FA           
 9/23/16  Foda Sherif                       3          Director²   2:11K  Energy Recovery, Inc.             RDG Filings/FA           
 7/10/13  Foda Sherif                       3          Officer²    2:14K  Schlumberger Ltd./NV              Morse Elizabeth Myers    

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¹	Filing/Form Types:
	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 }.
	10-K	Annual Report — Form 10-K.
	20-F	Annual or Annual-Transition Report by a Foreign Non-Canadian Issuer — Form 20-F.
	S-3ASR	Automatic Shelf Registration Statement by a Well-Known Issuer — Form S-3.
	S-8	Registration Statement – Securities for an Employee Benefit Plan — Form S-8.
²	Insider:  The Filer is a Director, Officer, 10% Owner and/or Other “insider” of the Issuer.