David W. Moon - 13 May 2025 Form 4 Insider Report for Energy Recovery, Inc. (ERII)

Role: President and CEO, Director
Signature: /s/ William Yeung, Attorney-in-Fact for David W. Moon
Issuer symbol: ERII
Transactions as of: 13 May 2025
Net transactions value: +$51,240
Form type: 4
Filing time: 15 May 2025, 17:05:23 UTC
Previous filing: 29 Jan 2025
Next filing: 03 Feb 2026
SEC: View on sec.gov

Reporting Owners (1)

Name	Relationship	Address	Signature	Signature date	CIK
Moon David W	President and CEO, Director	1717 DOOLITTLE DR., SAN LEANDRO	/s/ William Yeung, Attorney-in-Fact for David W. Moon	15 May 2025	0001372923

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	ERII	Common Stock	Purchase	$51,240	+4,200	+13%	$12.20	36,950	13 May 2025	David and Rhonda Moon JCP	F1
holding	ERII	Common Stock						168,417	13 May 2025	Direct

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

Explanation of Responses:

Id	Content
F1	This amount represents the weighted average purchase price of multiple trades ranging from $12.19 to $12.20 per share. The reporting person undertakes to provide the SEC Staff, Energy Recovery, Inc. or a shareholder of Energy Recovery, Inc. full information about the number of shares purchased at each separate price upon request.

Remarks:

Exhibit 24