Robert Yu Lang Mao - 25 Jul 2023 Form 4 Insider Report for Energy Recovery, Inc. (ERII)

Role: President and CEO, Director
Signature: /s/ Derek Ching, Attorney-in-Fact for Robert Yu Lang Mao
Issuer symbol: ERII
Transactions as of: 25 Jul 2023
Net transactions value: $0
Form type: 4
Filing time: 27 Jul 2023, 16:01:44 UTC
Previous filing: 01 Feb 2023
Next filing: 30 Oct 2023
SEC: View on sec.gov

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ERII	Common Stock	Award	$0	+32,695	+112%	$0.000000	61,943	25 Jul 2023	Direct	F1, F2
holding	ERII	Common Stock						96,208	25 Jul 2023	The Robert and Iran Mao Rev Trust DTD 04-06-2006

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	Represents the grant of restricted stock units to the reporting person. Each restrictive stock unit represents a contingent right to receive one (1) share of the issuer's common stock at settlement.
F2	These employee restricted stock units were granted on the transaction date. One third of the restricted stock units will vest on each of the first three anniversaries of the grant date.

Remarks:

Exhibit 24