ERII Energy Recovery, Inc.
Nasdaq · SEC CIK 1421517 · EDGAR
- Bought, last 12 months
- $266.1K 2 purchases by 2 insiders
- Sold, last 12 months
- $3.92M 17 sales by 5 insiders
- Filings on record
- 194 since 2021-07-06, latest 2026-07-29 20:00
BoughtSold
Most active insiders, 12 months
| Insider | Title | Bought | Sold |
|---|---|---|---|
| Hanstveit Arve | Dir | — | $2.95M |
| Yeung William | CLO | — | $558.8K |
| Clemente Rodney | SVP, Water | — | $274.9K |
| TONDREAU PAMELA L. | Dir | $166.8K | — |
| BUEHLER ALEXANDER J | CEO, Interim Pres, Dir | — | $129.8K |
| Sabol Colin R | Dir | $99.3K | — |
| Ramanan Natarajan | CTO | — | $2,875 |
| Mitchell John Joseph | Dir | — | — |
| Ryan Aidan | Interim CFO | — | — |
| Hostetler Matthew | CHRO | — | — |
Transactions 221
| X | Filed | Traded | Ticker | Insider | Title | Type | Price | Qty | Owned | ΔOwn | Value |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-07-29 20:00 | 2026-07-27 | ERII | Clemente Rodney | SVP, Water | F - Tax | $8.42 | -2,320 | 113.7K | -2% | -$19.5K | |
| 2026-07-29 20:00 | 2026-07-28 | ERII | Clemente Rodney | SVP, Water | S - Sale | $8.56 | -5,387 | 108.3K | -5% | -$46.1K | |
| 2026-07-29 19:58 | 2026-07-27 | ERII | Yeung William | CLO | F - Tax | $8.42 | -2,828 | 101.3K | -3% | -$23.8K | |
| 2026-07-29 19:58 | 2026-07-28 | ERII | Yeung William | CLO | S - Sale | $8.56 | -2,048 | 99.3K | -2% | -$17.5K | |
| 2026-07-22 17:58 | 2026-07-09 | ERII | Mitchell John Joseph | Dir | A - Grant | $0.00 | +16.8K | 16.8K | New | $0 | |
| 2026-06-25 16:24 | 2026-05-06 | ERII | Ryan Aidan | Interim CFO | A - Grant | $11.61 | +18.5K | 34.1K | +119% | +$215.0K | |
| 2026-06-17 16:11 | 2026-06-15 | ERII | Sabol Colin R | Dir | P - Purchase | $8.88 | +11.2K | 55.7K | +25% | +$99.3K | |
| D | 2026-06-17 16:08 | 2026-06-15 | ERII | BUEHLER ALEXANDER J | CEO, Interim Pres, Dir | M - OptEx | $8.60 | +15.3K | 81.7K | +23% | +$131.8K |
| D | 2026-06-17 16:08 | 2026-06-15 | ERII | BUEHLER ALEXANDER J | CEO, Interim Pres, Dir | S - Sale+OE | $8.71 | -14.9K | 66.8K | -18% | -$129.8K |
| 2026-06-05 16:51 | 2026-06-04 | ERII | TONDREAU PAMELA L. | Dir | A - Grant | $8.29 | +22.3K | 60.8K | +58% | +$185.0K | |
| 2026-06-05 16:50 | 2026-06-04 | ERII | Chow Joan Kai | Dir | A - Grant | $8.29 | +18.1K | 52.1K | +53% | +$150.0K | |
| 2026-06-05 16:50 | 2026-06-04 | ERII | Sabol Colin R | Dir | A - Grant | $8.29 | +18.1K | 44.5K | +69% | +$150.0K | |
| 2026-06-05 16:46 | 2026-06-04 | ERII | Hanstveit Arve | Dir | A - Grant | $8.29 | +18.1K | 400.6K | +5% | +$150.0K | |
| I | 2026-05-15 17:31 | 2026-05-13 | ERII | TONDREAU PAMELA L. | Dir | P - Purchase | $8.34 | +20.0K | 37.4K | +115% | +$166.8K |
| 2026-04-08 19:04 | 2026-04-06 | ERII | Hanstveit Arve | Dir | S - Sale | $10.29 | -2,419 | 382.5K | -0.6% | -$24.9K | |
| 2026-04-06 18:16 | 2026-04-02 | ERII | Hanstveit Arve | Dir | S - Sale | $10.14 | -165.3K | 384.9K | -30% | -$1.68M | |
| 2026-03-11 | 2026-03-10 | ERII | Hanstveit Arve | Dir | S - Sale | $10.96 | -25.0K | 550.2K | -4% | -$274.0K | |
| M | 2026-03-09 | 2026-03-05+ | ERII | Hanstveit Arve | Dir | S - Sale | $10.69 | -50.0K | 586.8K | -8% | -$534.5K |
| 2026-03-06 | 2026-03-05 | ERII | Ramanan Natarajan | CTO | S - Sale | $10.57 | -272 | 52.6K | -0.5% | -$2,875 | |
| 2026-03-06 | 2026-03-04 | ERII | Clemente Rodney | SVP, Water | S - Sale | $10.61 | -20.6K | 116.0K | -15% | -$218.2K | |
| 2026-03-04 | 2026-03-03 | ERII | Ramanan Natarajan | CTO | F - Tax | $10.22 | -2,724 | 52.8K | -5% | -$27.8K | |
| 2026-02-19 | 2026-02-17 | ERII | Ramanan Natarajan | CTO | A - Grant | $0.00 | +29.1K | 55.6K | +110% | $0 | |
| 2026-02-19 | 2026-02-17 | ERII | Moon David W | Pres, CEO, Dir | A - Grant | $0.00 | +81.8K | 233.1K | +54% | $0 | |
| 2026-02-19 | 2026-02-17 | ERII | Yeung William | CLO | A - Grant | $0.00 | +26.0K | 104.2K | +33% | $0 | |
| 2026-02-19 | 2026-02-17 | ERII | Hostetler Matthew | CHRO | A - Grant | $0.00 | +26.0K | 46.6K | +126% | $0 | |
| 2026-02-19 | 2026-02-17 | ERII | Clemente Rodney | SVP, Water | A - Grant | $0.00 | +45.6K | 136.6K | +50% | $0 | |
| 2026-02-19 | 2026-02-17 | ERII | Mancini Michael S. | CFO | A - Grant | $0.00 | +45.6K | 75.1K | +155% | $0 | |
| 2026-02-09 | 2026-02-05 | ERII | Clemente Rodney | SVP, Water | S - Sale | $14.59 | -724 | 91.0K | -0.8% | -$10.6K | |
| M | 2026-02-09 | 2026-02-05+ | ERII | Yeung William | CLO | S - Sale | $14.82 | -1,536 | 78.2K | -2% | -$22.8K |
| M | 2026-02-03 | 2026-01-30 | ERII | Yeung William | CLO | F - Tax | $14.34 | -9,625 | 89.1K | -10% | -$138.0K |
| M | 2026-02-03 | 2026-01-28+ | ERII | Yeung William | CLO | S - Sale | $14.54 | -8,000 | 90.1K | -8% | -$116.3K |
| 2026-02-03 | 2026-01-30 | ERII | Hostetler Matthew | CHRO | F - Tax | $14.30 | -3,359 | 20.6K | -14% | -$48.0K | |
| M | 2026-02-03 | 2026-01-30 | ERII | Clemente Rodney | SVP, Water | F - Tax | $14.33 | -9,091 | 100.1K | -8% | -$130.2K |
| 2026-02-03 | 2026-01-30 | ERII | Mancini Michael S. | CFO | F - Tax | $14.30 | -4,798 | 29.4K | -14% | -$68.6K | |
| 2026-02-03 | 2026-01-30 | ERII | Moon David W | Pres, CEO, Dir | F - Tax | $14.30 | -17.2K | 151.3K | -10% | -$245.4K | |
| M | 2025-12-08 | 2025-12-04+ | ERII | Hanstveit Arve | Dir | S - Sale | $14.84 | -30.0K | 640.2K | -4% | -$445.2K |
| DM | 2025-10-27 | 2025-10-23+ | ERII | Yeung William | CLO | S - Sale+OE | $17.86 | -12.7K | 97.4K | -12% | -$226.8K |
| DM | 2025-10-27 | 2025-10-23+ | ERII | Yeung William | CLO | M - OptEx | $8.69 | +12.7K | 100.9K | +14% | +$110.4K |
| D | 2025-10-22 | 2025-10-20 | ERII | Yeung William | CLO | M - OptEx | $7.50 | +3,530 | 100.9K | +4% | +$26.5K |
| D | 2025-10-22 | 2025-10-20 | ERII | Yeung William | CLO | S - Sale+OE | $17.00 | -3,530 | 97.4K | -3% | -$60.0K |
| D | 2025-10-17 | 2025-10-16 | ERII | Yeung William | CLO | S - Sale+OE | $16.50 | -3,530 | 97.4K | -3% | -$58.2K |
| D | 2025-10-17 | 2025-10-16 | ERII | Yeung William | CLO | M - OptEx | $7.50 | +3,530 | 100.9K | +4% | +$26.5K |
| DM | 2025-10-07 | 2025-10-03 | ERII | Yeung William | CLO | S - Sale+OE | $16.00 | -3,567 | 97.4K | -4% | -$57.1K |
| DM | 2025-10-07 | 2025-10-03 | ERII | Yeung William | CLO | M - OptEx | $7.50 | +3,567 | 98.4K | +4% | +$26.8K |
| D | 2025-09-22 | 2025-09-18 | ERII | Yeung William | CLO | S - Sale+OE | $15.09 | -15.5K | 97.4K | -14% | -$233.2K |
| D | 2025-09-22 | 2025-09-18 | ERII | Yeung William | CLO | M - OptEx | $8.95 | +15.5K | 112.8K | +16% | +$138.3K |
| D | 2025-09-15 | 2025-09-11 | ERII | Yeung William | CLO | S - Sale+OE | $14.51 | -33.6K | 97.4K | -26% | -$486.9K |
| D | 2025-09-15 | 2025-09-11 | ERII | Yeung William | CLO | M - OptEx | $8.95 | +30.9K | 130.9K | +31% | +$276.3K |
| 2025-07-29 | 2025-07-25 | ERII | Clemente Rodney | SVP, Water | F - Tax | $13.88 | -2,320 | 106.2K | -2% | -$32.2K | |
| 2025-07-29 | 2025-07-28 | ERII | Clemente Rodney | SVP, Water | S - Sale | $13.97 | -5,387 | 100.8K | -5% | -$75.3K | |
| 2025-07-29 | 2025-07-25 | ERII | Yeung William | CLO | F - Tax | $13.88 | -1,989 | 100.0K | -2% | -$27.6K | |
| M | 2025-06-13 | 2025-06-11+ | ERII | Hanstveit Arve | Dir | S - Sale | $12.71 | -50.0K | 655.2K | -7% | -$635.4K |
| 2025-06-06 | 2025-06-05 | ERII | Hanstveit Arve | Dir | A - Grant | $0.00 | +12.0K | 705.2K | +2% | $0 | |
| 2025-06-06 | 2025-06-05 | ERII | Chow Joan Kai | Dir | A - Grant | $0.00 | +12.0K | 34.0K | +55% | $0 | |
| 2025-06-06 | 2025-06-05 | ERII | BUEHLER ALEXANDER J | Dir | A - Grant | $0.00 | +12.0K | 66.3K | +22% | $0 | |
| 2025-06-06 | 2025-06-05 | ERII | Sabol Colin R | Dir | A - Grant | $0.00 | +12.0K | 26.4K | +84% | $0 | |
| 2025-06-06 | 2025-06-05 | ERII | TONDREAU PAMELA L. | Dir | A - Grant | $0.00 | +14.8K | 55.9K | +36% | $0 | |
| 2025-05-15 | 2025-05-14 | ERII | TONDREAU PAMELA L. | Dir | P - Purchase | $12.28 | +4,200 | 41.0K | +11% | +$51.6K | |
| I | 2025-05-15 | 2025-05-13 | ERII | Moon David W | Pres, CEO, Dir | P - Purchase | $12.20 | +4,200 | 37.0K | +13% | +$51.2K |
| 2025-03-13 | 2025-03-11 | ERII | Hanstveit Arve | Dir | S - Sale | $16.34 | -50.0K | 693.2K | -7% | -$817.0K | |
| D | 2025-03-12 | 2025-03-03 | ERII | Ramanan Natarajan | CTO | A - Grant | — | +26.5K | 26.5K | New | — |
| 2025-03-12 | 2025-03-11 | ERII | Clemente Rodney | SVP, Water | S - Sale | $16.23 | -1,843 | 108.5K | -2% | -$29.9K | |
| 2025-03-12 | 2025-03-10 | ERII | Clemente Rodney | SVP, Water | F - Tax | $16.37 | -794 | 110.3K | -0.7% | -$13.0K | |
| 2025-03-12 | 2025-03-10 | ERII | Yeung William | CLO | F - Tax | $16.37 | -944 | 102.0K | -0.9% | -$15.5K | |
| 2025-02-24 | 2025-02-20 | ERII | Clemente Rodney | SVP, Water | S - Sale | $15.42 | -21.4K | 111.1K | -16% | -$330.7K | |
| 2025-02-05 | 2025-02-03 | ERII | Yeung William | CLO | F - Tax | $14.34 | -882 | 103.0K | -0.8% | -$12.6K | |
| 2025-02-05 | 2025-02-03 | ERII | Ghasripoor Farshad | CTO | F - Tax | $14.34 | -1,420 | 117.9K | -1% | -$20.4K | |
| I | 2025-02-05 | 2025-02-04 | ERII | Ghasripoor Farshad | CTO | J - Other | $0.00 | +65.0K | 70.2K | +1,243% | $0 |
| 2025-02-05 | 2025-02-04 | ERII | Ghasripoor Farshad | CTO | J - Other | $0.00 | -65.0K | 52.9K | -55% | $0 | |
| 2025-02-05 | 2025-02-03 | ERII | Clemente Rodney | SVP, Water | F - Tax | $14.34 | -944 | 132.6K | -0.7% | -$13.5K | |
| M | 2025-02-03 | 2025-01-30+ | ERII | Yeung William | CLO | F - Tax | $14.44 | -1,325 | 104.5K | -1% | -$19.1K |
| M | 2025-02-03 | 2025-01-30+ | ERII | Clemente Rodney | SVP, Water | F - Tax | $14.44 | -1,309 | 134.1K | -1.0% | -$18.9K |
| M | 2025-02-03 | 2025-01-30+ | ERII | Ghasripoor Farshad | CTO | F - Tax | $14.44 | -1,960 | 119.3K | -2% | -$28.3K |
| 2025-01-29 | 2025-01-27 | ERII | Ghasripoor Farshad | CTO | F - Tax | $14.40 | -5,721 | 121.2K | -5% | -$82.4K | |
| 2025-01-29 | 2025-01-27 | ERII | Clemente Rodney | SVP, Water | F - Tax | $14.40 | -5,784 | 134.8K | -4% | -$83.3K | |
| 2025-01-29 | 2025-01-27 | ERII | Moon David W | Pres, CEO, Dir | F - Tax | $14.40 | -7,664 | 168.4K | -4% | -$110.4K | |
| 2025-01-29 | 2025-01-27 | ERII | Yeung William | CLO | F - Tax | $14.40 | -4,061 | 105.2K | -4% | -$58.5K | |
| 2025-01-27 | 2025-01-23 | ERII | Moon David W | Pres, CEO, Dir | A - Grant | $0.00 | +89.0K | 176.1K | +102% | $0 | |
| 2025-01-27 | 2025-01-23 | ERII | Yeung William | CLO | A - Grant | $0.00 | +24.0K | 109.2K | +28% | $0 | |
| 2025-01-27 | 2025-01-23 | ERII | Mancini Michael S. | CFO | A - Grant | $0.00 | +34.2K | 34.2K | New | $0 | |
| 2025-01-27 | 2025-01-23 | ERII | Clemente Rodney | SVP, Water | A - Grant | $0.00 | +34.2K | 140.6K | +32% | $0 | |
| 2024-12-17 | 2024-12-11 | ERII | Hanstveit Arve | Dir | S - Sale | $16.87 | -20.0K | 743.2K | -3% | -$337.4K | |
| M | 2024-11-12 | 2024-11-07+ | ERII | Clemente Rodney | SVP, Water | S - Sale | $20.03 | -27.5K | 110.6K | -20% | -$549.9K |
| 2024-10-30 | 2024-10-28 | ERII | Clemente Rodney | SVP, Water | S - Sale | $17.98 | -6,505 | 133.8K | -5% | -$117.0K | |
| 2024-10-30 | 2024-10-28 | ERII | Moon David W | Pres, CEO, Dir | S - Sale | $17.97 | -2,550 | 87.1K | -3% | -$45.8K | |
| 2024-10-30 | 2024-10-28 | ERII | Ghasripoor Farshad | CTO | S - Sale | $17.97 | -10.5K | 127.0K | -8% | -$189.2K | |
| D | 2024-08-21 | 2024-08-19 | ERII | BUEHLER ALEXANDER J | Dir | M - OptEx | $2.92 | +19.8K | 54.3K | +58% | +$57.9K |
| I | 2024-08-07 | 2024-08-05 | ERII | Moon David W | Pres, CEO, Dir | P - Purchase | $16.00 | +3,000 | 32.8K | +10% | +$48.0K |
| 2024-07-30 | 2024-07-29 | ERII | Clemente Rodney | SVP, Water | S - Sale | $14.63 | -2,353 | 140.3K | -2% | -$34.4K | |
| 2024-07-30 | 2024-07-29 | ERII | Yeung William | CLO | S - Sale | $14.63 | -2,012 | 85.3K | -2% | -$29.4K | |
| 2024-07-30 | 2024-07-29 | ERII | Ghasripoor Farshad | CTO | S - Sale | $14.63 | -4,079 | 137.5K | -3% | -$59.7K | |
| 2024-06-20 | 2024-06-18 | ERII | Moon David W | Pres, CEO, Dir | S - Sale | $12.77 | -1,219 | 89.7K | -1% | -$15.6K | |
| 2024-06-10 | 2024-06-06 | ERII | Sabol Colin R | Dir | A - Grant | $0.00 | +11.1K | 14.4K | +344% | $0 | |
| 2024-06-10 | 2024-06-07 | ERII | Hanstveit Arve | Dir | S - Sale | $13.20 | -20.0K | 763.2K | -3% | -$264.0K | |
| 2024-06-10 | 2024-06-06 | ERII | Hanstveit Arve | Dir | A - Grant | $0.00 | +11.1K | 783.2K | +1% | $0 | |
| 2024-06-10 | 2024-06-06 | ERII | BUEHLER ALEXANDER J | Dir | A - Grant | $0.00 | +11.1K | 34.4K | +48% | $0 | |
| 2024-06-10 | 2024-06-06 | ERII | TONDREAU PAMELA L. | Dir | A - Grant | $0.00 | +13.7K | 36.8K | +59% | $0 | |
| 2024-06-10 | 2024-06-06 | ERII | Chow Joan Kai | Dir | A - Grant | $0.00 | +11.1K | 22.0K | +102% | $0 | |
| 2024-05-30 | 2024-05-28 | ERII | Ballard Joshua | CFO | S - Sale | $13.54 | -4,051 | 40.4K | -9% | -$54.9K | |
| DM | 2024-05-24 | 2024-05-22+ | ERII | Mao Robert Yu Lang | Dir | M - OptEx | $7.79 | +39.9K | 246.9K | +19% | +$310.8K |
Purchase Sale Sale after option exercise All abbreviations