Arve Hanstveit - 10 Mar 2026 Form 4 Insider Report for Energy Recovery, Inc. (ERII)

Role
Director
Signature
/s/ William Yeung Attorney-in-fact for Arve Hanstveit
Issuer symbol
ERII
Transactions as of
10 Mar 2026
Net transactions value
-$273,975
Form type
4
Filing time
11 Mar 2026, 16:33:28 UTC
Previous filing
09 Mar 2026
SEC
View on sec.gov

Reporting Owners (1)

Name Relationship Address Signature Signature date CIK
Hanstveit Arve Director C/O ENERGY RECOVERY, INC., 1717 DOOLITTLE DRIVE, SAN LEANDRO /s/ William Yeung Attorney-in-fact for Arve Hanstveit 11 Mar 2026 0001430122

Transactions Table

Type Sym Class Transaction Value $ Shares Change % * Price $ Shares After Date Ownership Footnotes
transaction ERII Common Stock Sale $273,975 -25,000 -4.3% $10.96 550,220 10 Mar 2026 Direct F1
holding ERII Common Stock 60,000 10 Mar 2026 Sophie Hanstveit Irrevocable Trust F2
holding ERII Common Stock 60,000 10 Mar 2026 Natasha Hanstveit Irrevocable Trust F2
* 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 sales price of multiple trades ranging from $10.83 to $11.11 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 sold at each separate price upon request.
F2 Mr. Hanstveit is sole trustee and exercises sole voting and investment power.

Remarks:

Exhibit 24