| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Clemente Rodney | SVP, Water | C/O ENERGY RECOVERY, INC., 1717 DOOLITTLE DRIVE, SAN LEANDRO | /s/ William Yeung, Attorney-in-Fact for Rodney Clemente | 03 Feb 2026 | 0001668422 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ERII | Common Stock | Tax liability | $10,167 | -694 | -0.69% | $14.65 | 100,071 | 30 Jan 2026 | Direct | F1 |
| transaction | ERII | Common Stock | Tax liability | $120,077 | -8,397 | -8.4% | $14.30 | 91,674 | 30 Jan 2026 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | Payment of tax obligation by withholding securities incident to the vesting of securities in accordance with Rule 16b-3(e). |
Exhibit 24