ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 170 filers reported holding ENERGY RECOVERY INC in Q1 2023. The put-call ratio across all filers is 1.11 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $14,847 | -24.1% | 700 | 0.0% | 0.00% | – |
| Q2 2023 | $19,565 | +21.3% | 700 | 0.0% | 0.00% | – |
| Q1 2023 | $16,135 | +12.5% | 700 | 0.0% | 0.00% | – |
| Q4 2022 | $14,343 | -4.4% | 700 | 0.0% | 0.00% | – |
| Q3 2022 | $15,000 | +7.1% | 700 | 0.0% | 0.00% | – |
| Q2 2022 | $14,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q1 2022 | $14,000 | -6.7% | 700 | 0.0% | 0.00% | – |
| Q4 2021 | $15,000 | +15.4% | 700 | 0.0% | 0.00% | – |
| Q3 2021 | $13,000 | -18.8% | 700 | 0.0% | 0.00% | – |
| Q2 2021 | $16,000 | +23.1% | 700 | 0.0% | 0.00% | – |
| Q1 2021 | $13,000 | +30.0% | 700 | 0.0% | 0.00% | – |
| Q4 2020 | $10,000 | +66.7% | 700 | 0.0% | 0.00% | – |
| Q3 2020 | $6,000 | +20.0% | 700 | 0.0% | 0.00% | – |
| Q2 2020 | $5,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q1 2020 | $5,000 | -28.6% | 700 | 0.0% | 0.00% | – |
| Q4 2019 | $7,000 | +16.7% | 700 | 0.0% | 0.00% | – |
| Q3 2019 | $6,000 | -14.3% | 700 | 0.0% | 0.00% | – |
| Q2 2019 | $7,000 | +16.7% | 700 | 0.0% | 0.00% | – |
| Q1 2019 | $6,000 | +20.0% | 700 | 0.0% | 0.00% | – |
| Q4 2018 | $5,000 | -16.7% | 700 | 0.0% | 0.00% | – |
| Q3 2018 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q2 2018 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q1 2018 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q4 2017 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q3 2017 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q2 2017 | $6,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q1 2017 | $6,000 | -14.3% | 700 | 0.0% | 0.00% | – |
| Q4 2016 | $7,000 | -36.4% | 700 | 0.0% | 0.00% | – |
| Q3 2016 | $11,000 | +83.3% | 700 | 0.0% | 0.00% | – |
| Q2 2016 | $6,000 | -14.3% | 700 | 0.0% | 0.00% | – |
| Q1 2016 | $7,000 | +40.0% | 700 | 0.0% | 0.00% | – |
| Q4 2015 | $5,000 | +400.0% | 700 | 0.0% | 0.00% | – |
| Q3 2015 | $1,000 | -50.0% | 700 | 0.0% | 0.00% | – |
| Q2 2015 | $2,000 | 0.0% | 700 | 0.0% | 0.00% | – |
| Q1 2015 | $2,000 | -50.0% | 700 | 0.0% | 0.00% | – |
| Q4 2014 | $4,000 | +100.0% | 700 | 0.0% | 0.00% | – |
| Q3 2014 | $2,000 | -33.3% | 700 | 0.0% | 0.00% | – |
| Q2 2014 | $3,000 | +50.0% | 700 | +64.7% | 0.00% | – |
| Q1 2014 | $2,000 | 0.0% | 425 | 0.0% | 0.00% | – |
| Q4 2013 | $2,000 | – | 425 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Miura Global Management | 260,000 | $5,514,600 | 3.77% |
| Avenir Corp | 1,780,540 | $37,765,245 | 3.54% |
| Lagoda Investment Management, L.P. | 228,595 | $4,848,500 | 3.18% |
| Montanaro Asset Management Ltd | 848,250 | $17,991,383 | 3.16% |
| Trigran Investments, Inc. | 1,333,585 | $28,285,338 | 3.01% |
| ACK Asset Management | 877,400 | $18,610 | 2.70% |
| Sargent Investment Group, LLC | 353,095 | $7,489,145 | 1.80% |
| Pembroke Management, LTD | 548,031 | $11,623,738 | 1.59% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 378,234 | $8,022,343 | 1.31% |
| Mesirow Institutional Investment Management, Inc. | 592,076 | $12,557,932 | 1.27% |