ERII SEC Form 4 filings
Energy Recovery, Inc. Latest Insider Trading Activity
Over the past 366 days, Energy Recovery, Inc. (ERII) has had 11 total open-market insider transactions represented in the displayed records. The most recent transaction was on June 15, 2026, when Buehler Alexander J (Energy Recovery, Inc. Interim President and CEO) reported a sale of 14,900 shares at $8.71 per share. This page shows up to the 10 most recent SEC Form 4 filing records on a 6-hour delay. Sign up for real-time updates and access to 20 years of historic insider trading data.
Insider Trading For ERII Charted on Daily Candles. Scroll left or zoom out to load earlier candles (up to 2 years).
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| Ticker | Filing Date | Transaction Date | Company | Insider | Title | Transaction | Trade Count | Shares | Avg. Price | Total Value | Position Size Change | SEC Filing |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-06-17 | 2026-06-15 | Energy Recovery, Inc. | Buehler Alexander J | Interim President and CEO | Sell | 1 | 14,900 | $8.71 | $129,779.00 | 18.25% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-05-15 | 2026-05-13 | Energy Recovery, Inc. | Tondreau Pamela L. | Director | Buy | 1 | 20,000 | $8.34 | $166,800.00 | 53.53% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-04-08 | 2026-04-06 | Energy Recovery, Inc. | Hanstveit Arve | Director | Sell | 1 | 2,419 | $10.29 | $24,891.51 | 0.63% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-04-06 | 2026-04-02 | Energy Recovery, Inc. | Hanstveit Arve | Director | Sell | 1 | 165,292 | $10.14 | $1,676,060.88 | 30.04% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-03-11 | 2026-03-10 | Energy Recovery, Inc. | Hanstveit Arve | Director | Sell | 1 | 25,000 | $10.96 | $274,000.00 | 4.35% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-03-09 | 2026-03-06 | Energy Recovery, Inc. | Hanstveit Arve | Director | Sell | 2 | 50,000 | $10.69 | $534,457.62 | 4.13% | View Filing |
| Unexplained: transactions without an ESPP, DRIP, 10b5-1, tax liability, or Explained M/S tag. ERII | 2026-03-06 | 2026-03-05 | Energy Recovery, Inc. | Ramanan Natarajan | Chief Technology Officer | Sell | 1 | 272 | $10.57 | $2,875.04 | 0.51% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction ERII | 2026-03-06 | 2026-03-04 | Energy Recovery, Inc. | Clemente Rodney | SVP, Water | Sell | 1 | 20,568 | $10.61 | $218,226.48 | 15.06% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction ERII | 2025-10-22 | 2025-10-20 | Energy Recovery, Inc. | Yeung William | Chief Legal Officer | Sell | 1 | 3,530 | $17.00 | $60,010.00 | 3.50% | View Filing |
| 10b5-1: Scheduled Form 4 Transaction ERII | 2025-10-17 | 2025-10-16 | Energy Recovery, Inc. | Yeung William | Chief Legal Officer | Sell | 1 | 3,530 | $16.50 | $58,245.00 | 3.50% | View Filing |
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