13 insiders reported 72 Form 4 transactions for Energy Recovery, Inc. (ERII) over the past 18 months (most recent 2026-07-29). Recent activity: Clemente Rodney (SVP, Water) Sell 2,320 shares, Yeung William (Chief Legal Officer) Sell 2,828 shares, Clemente Rodney (SVP, Water) Sell 5,387 shares, Yeung William (Chief Legal Officer) Sell 2,048 shares, Mitchell John Joseph (Director) Buy 16,797 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-29 | Clemente Rodney | SVP, Water | Sell | 2,320 | $19,534 |
| 2026-07-29 | Yeung William | Chief Legal Officer | Sell | 2,828 | $23,812 |
| 2026-07-29 | Clemente Rodney | SVP, Water | Sell | 5,387 | $46,113 |
| 2026-07-29 | Yeung William | Chief Legal Officer | Sell | 2,048 | $17,531 |
| 2026-07-22 | Mitchell John Joseph | Director | Buy | 16,797 | $0 |
| 2026-06-25 | Ryan Aidan | Interim CFO | Buy | 18,518 | $214,994 |
| 2026-06-17 | Sabol Colin R | Director | Buy | 11,180 | $99,278 |
| 2026-06-17 | BUEHLER ALEXANDER J | Interim President and CEO | Buy | 15,327 | $131,812 |
| 2026-06-17 | BUEHLER ALEXANDER J | Interim President and CEO | Sell | 14,900 | $129,779 |
| 2026-06-05 | Hanstveit Arve | Director | Buy | 18,094 | $149,999 |
| 2026-06-05 | Sabol Colin R | Director | Buy | 18,094 | $149,999 |
| 2026-06-05 | TONDREAU PAMELA L. | Director | Buy | 22,316 | $185,000 |
| 2026-06-05 | Chow Joan Kai | Director | Buy | 18,094 | $149,999 |
| 2026-05-15 | TONDREAU PAMELA L. | Director | Buy | 20,000 | $166,800 |
| 2026-04-08 | Hanstveit Arve | Director | Sell | 2,419 | $24,892 |
| 2026-04-06 | Hanstveit Arve | Director | Sell | 165,292 | $1.7M |
| 2026-03-11 | Hanstveit Arve | Director | Sell | 25,000 | $274,000 |
| 2026-03-09 | Hanstveit Arve | Director | Sell | 38,418 | $411,457 |
| 2026-03-09 | Hanstveit Arve | Director | Sell | 11,582 | $123,001 |
| 2026-03-06 | Clemente Rodney | SVP, Water | Sell | 20,568 | $218,226 |
| 2026-03-06 | Ramanan Natarajan | Chief Technology Officer | Sell | 272 | $2,875 |
| 2026-03-04 | Ramanan Natarajan | Chief Technology Officer | Sell | 2,724 | $27,839 |
| 2026-02-19 | Moon David W | President and CEO | Buy | 81,812 | $0 |
| 2026-02-19 | Ramanan Natarajan | Chief Technology Officer | Buy | 29,106 | $0 |
| 2026-02-19 | Hostetler Matthew | Chief Human Resources Officer | Buy | 25,959 | $0 |
来源：SEC Form 4 申报文件 · 截至 2026-07-29