Energy Recovery Inc.
Last updated September 27, 2026
Organization details
- Legal name
- Energy Recovery Inc.
- Ownership
- Public
- Status
- Active
- Headquarters country
- United States
- Ticker symbol
- ERII
- Primary stock exchange
- Nasdaq
Identifiers
- SEC CIK
- 0001421517
Board of directors
-
Alexander J. Buehler · Director · Interim President and CEOSince 2023
-
Arve Hanstveit · DirectorSince 2023
-
Colin R. Sabol · DirectorSince 2023
-
David W. Moon · Director · President and CEOSince 2023
-
Joan Kai Chow · DirectorSince 2023
-
John Joseph Mitchell · DirectorSince 2026
-
Lisa A. Pollina · DirectorSince 2023
-
Pamela L. Tondreau · DirectorSince 2023
-
Robert Yu Lang Mao · Director · President and CEOSince 2023
-
Sherif Foda · DirectorSince 2023
Chief executives
Board connections
4 of this board's directors also sit on 3 other boards.
- via Lisa A. Pollina and Sherif Foda
- via Alexander J. Buehler
- via Joan Kai Chow
Insider trades
All notable trades →From SEC Forms 4 and 5. Open-market purchases and sales are highlighted; grants, option exercises and shares withheld for tax are routine.
- Bought, last 12 months
- $266,078
- 2 purchases by 2 insiders
- Sold, last 12 months
- $3,920,923
- 24 sales by 5 insiders
| Date | Insider | Transaction | Shares | Price | Value |
|---|---|---|---|---|---|
| Jul 28, 2026 | Clemente Rodney Officer (SVP, Water) | Open-market sale | −5,387 | $8.56 | $46,113 |
| Jul 28, 2026 | Yeung William Officer (Chief Legal Officer) | Open-market sale | −2,048 | $8.56 | $17,531 |
| Jul 27, 2026 | Clemente Rodney Officer (SVP, Water) | Shares withheld for tax | −2,320 | $8.42 | $19,534 |
| Jul 27, 2026 | Yeung William Officer (Chief Legal Officer) | Shares withheld for tax | −2,828 | $8.42 | $23,812 |
| Jul 9, 2026 | John Joseph Mitchell Director | Grant or award | +16,797 | — | — |
| Jun 15, 2026 | Colin R. Sabol Director | Open-market purchase | +11,180 | $8.88 | $99,278 |
| Jun 15, 2026 | Alexander J. Buehler Director, Officer (Interim President and CEO) | Option exercise | +15,327 | $8.60 | $131,812 |
| Jun 15, 2026 | Alexander J. Buehler Director, Officer (Interim President and CEO) | Open-market sale | −14,900 | $8.71 | $129,779 |
| Jun 4, 2026 | Pamela L. Tondreau Director | Grant or award | +22,316 | $8.29 | $185,000 |
| Jun 4, 2026 | Joan Kai Chow Director | Grant or award | +18,094 | $8.29 | $149,999 |
| Jun 4, 2026 | Colin R. Sabol Director | Grant or award | +18,094 | $8.29 | $149,999 |
| Jun 4, 2026 | Arve Hanstveit Director | Grant or award | +18,094 | $8.29 | $149,999 |
| May 13, 2026 | Pamela L. Tondreau Director | Open-market purchase | +20,000 | $8.34 | $166,800 |
| May 6, 2026 | Ryan Aidan Officer (Interim CFO) | Grant or award | +18,518 | $11.61 | $214,994 |
| Apr 6, 2026 | Arve Hanstveit Director | Open-market sale | −2,419 | $10.29 | $24,892 |
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