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 | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $3 | -99.9% | 400 | 0.0% | 0.00% | – |
| Q3 2022 | $3,000 | 0.0% | 400 | 0.0% | 0.00% | – |
| Q2 2022 | $3,000 | 0.0% | 400 | 0.0% | 0.00% | – |
| Q1 2022 | $3,000 | -66.7% | 400 | -60.0% | 0.00% | – |
| Q3 2018 | $9,000 | +12.5% | 1,000 | 0.0% | 0.00% | – |
| Q2 2018 | $8,000 | -55.6% | 1,000 | -50.0% | 0.00% | -100.0% |
| Q1 2018 | $18,000 | 0.0% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $18,000 | +12.5% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $16,000 | -5.9% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $17,000 | 0.0% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $17,000 | +70.0% | 2,000 | +100.0% | 0.00% | – |
| Q4 2016 | $10,000 | -96.4% | 1,000 | -94.2% | 0.00% | -100.0% |
| Q3 2016 | $275,000 | +2955.6% | 17,201 | +1620.1% | 0.01% | +1300.0% |
| Q2 2016 | $9,000 | +28.6% | 1,000 | 0.0% | 0.00% | – |
| Q4 2015 | $7,000 | – | 1,000 | – | 0.00% | – |
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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% |