Robert Yu Lang Mao - 30 Jan 2023 Form 4 Insider Report for Energy Recovery, Inc. (ERII)

Role: President and CEO, Director
Signature: /s/ William Yeung, Attorney-in-Fact for Robert Yu Lang Mao
Issuer symbol: ERII
Transactions as of: 30 Jan 2023
Net transactions value: +$299,997
Form type: 4
Filing time: 01 Feb 2023, 17:32:30 UTC
Previous filing: 11 Aug 2022
Next filing: 27 Jul 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	$299,997	+14,012	+92%	$21.41	29,248	30 Jan 2023	Direct	F1, F2
holding	ERII	Common Stock						64,042	30 Jan 2023	Limited Purpose Trust
holding	ERII	Common Stock						32,166	30 Jan 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	These employee restricted stock units were granted on the transaction date. 25% of the restricted stock units will vests on the first four anniversaries of the grant date.
F2	Each restricted stock unit represents the right to receive, at settlement, one (1) share of the Company's common stock.

Remarks:

Exhibit 24