Robert Yu Lang Mao - Sep 29, 2021 Form 4/A - Amendment Insider Report for Energy Recovery, Inc. (ERII)

Role: President and CEO, Director
Signature: /s/ William Yeung, Attorney-in-Fact for Robert Yu Lang Mao
Stock symbol: ERII
Transactions as of: Sep 29, 2021
Transactions value $: $0
Form type: 4/A - Amendment
Date filed: 10/4/2021, 08:40 PM
Date Of Original Report: Oct 4, 2021
Next filing: Feb 1, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ERII	Common Stock	Gift	$0	-121K	-79.05%	$0.00	32.2K	Sep 29, 2021	The Robert and Iran Mao Rev Trust DTD 04-06-2006	F1
holding	ERII	Common Stock						64K	Sep 29, 2021	Limited Purpose Trust

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

Explanation of Responses:

Id	Content
F1	These securities were transferred by the reporting person as a gift to an irrevocable trust for the benefit of the reporting person's children. The reporting person disclaims beneficial ownership of such securities. This transaction is exempt from Section 16 pursuant to Rule 16b-5, as it is a bona fide gift.

Remarks:

This amendment to the reporting person's previously filed Form 4 is being filed solely to include information regarding the total number of shares beneficially owned.