ENERGY RECOVERY INC (ERII) — insider trading
Industrials · NASDAQ
ENERGY RECOVERY INC (ERII) has 13 reported SEC Form 4 insider transactions in our data, including 2 open-market purchases and 4 open-market sales among the most recent 13 (latest 2026-06-15).
Recent Form 4 transactions
| Date | Insider | Role | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-06-15 | BUEHLER ALEXANDER J | Director, Officer (Interim President and CEO) | Option exercise / conversion (derivative) | 15,327 | $8.60 | $131.8K | Form 4 |
| 2026-06-15 | BUEHLER ALEXANDER J | Director, Officer (Interim President and CEO) | Open-market sale | 14,900 | $8.71 | $129.8K | Form 4 |
| 2026-06-15 | BUEHLER ALEXANDER J | Director, Officer (Interim President and CEO) | Option exercise / conversion | 15,327 | $8.60 | $131.8K | Form 4 |
| 2026-06-15 | Sabol Colin R | Director | Open-market purchase | 11,180 | $8.88 | $99.3K | Form 4 |
| 2026-06-04 | Hanstveit Arve | Director | Grant / award / vesting | 18,094 | $8.29 | $150.0K | Form 4 |
| 2026-06-04 | Sabol Colin R | Director | Grant / award / vesting | 18,094 | $8.29 | $150.0K | Form 4 |
| 2026-06-04 | Chow Joan Kai | Director | Grant / award / vesting | 18,094 | $8.29 | $150.0K | Form 4 |
| 2026-06-04 | TONDREAU PAMELA L. | Director | Grant / award / vesting | 22,316 | $8.29 | $185.0K | Form 4 |
| 2026-05-13 | TONDREAU PAMELA L. | Director | Open-market purchase | 20,000 | $8.34 | $166.8K | Form 4 |
| 2026-05-06 | Ryan Aidan | Officer (Interim CFO) | Grant / award / vesting | 18,518 | $11.61 | $215.0K | Form 4 |
| 2026-04-06 | Hanstveit Arve | Director | Open-market sale | 2,419 | $10.29 | $24.9K | Form 4 |
| 2026-04-02 | Hanstveit Arve | Director | Open-market sale | 165,292 | $10.14 | $1.68M | Form 4 |
| 2026-03-10 | Hanstveit Arve | Director | Open-market sale | 25,000 | $10.96 | $274.0K | Form 4 |
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Transaction types are the SEC Form 4 codes: open-market purchases (P) and sales (S) are the only rows that reflect open-market conviction. Awards/vesting (A), option exercises (M/X/C), shares withheld for taxes (F) and gifts (G) are compensation or mechanical, not buying or selling on the open market. Sales may be planned and non-discretionary (e.g. a Rule 10b5-1 plan); open-market buying is not a recommendation to buy. Informational only — not financial advice.
Source: SEC EDGAR Form 3/4/5. See the full company profile: ENERGY RECOVERY INC (ERII).
Last updated 2026-06-15 (most recent filing date).
Informational only — NOT financial advice. Insider filings are sourced from SEC EDGAR and shown with their reported dates.