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 | $11,892 | +23.9% | 560,690 | +63.3% | 0.02% | +41.7% |
| Q2 2023 | $9,597 | +520.4% | 343,347 | +411.6% | 0.01% | +500.0% |
| Q1 2023 | $1,547 | +29.1% | 67,116 | +14.8% | 0.00% | 0.0% |
| Q4 2022 | $1,198 | -99.9% | 58,486 | -0.0% | 0.00% | 0.0% |
| Q3 2022 | $1,272,000 | +13.0% | 58,508 | +1.0% | 0.00% | +100.0% |
| Q2 2022 | $1,126,000 | +14.9% | 57,957 | +19.1% | 0.00% | 0.0% |
| Q1 2022 | $980,000 | -23.3% | 48,644 | -18.2% | 0.00% | 0.0% |
| Q4 2021 | $1,278,000 | +13.1% | 59,463 | +0.1% | 0.00% | 0.0% |
| Q3 2021 | $1,130,000 | -18.0% | 59,400 | -1.8% | 0.00% | 0.0% |
| Q2 2021 | $1,378,000 | +24.9% | 60,501 | +0.6% | 0.00% | 0.0% |
| Q1 2021 | $1,103,000 | +154.1% | 60,165 | +89.2% | 0.00% | – |
| Q4 2020 | $434,000 | +92.9% | 31,801 | +16.1% | 0.00% | – |
| Q3 2020 | $225,000 | +8.2% | 27,401 | 0.0% | 0.00% | – |
| Q2 2020 | $208,000 | +2.0% | 27,401 | 0.0% | 0.00% | – |
| Q1 2020 | $204,000 | -23.9% | 27,401 | 0.0% | 0.00% | – |
| Q4 2019 | $268,000 | -18.0% | 27,401 | -22.4% | 0.00% | – |
| Q3 2019 | $327,000 | -11.1% | 35,300 | 0.0% | 0.00% | – |
| Q2 2019 | $368,000 | +19.5% | 35,300 | 0.0% | 0.00% | – |
| Q1 2019 | $308,000 | +29.4% | 35,300 | 0.0% | 0.00% | – |
| Q4 2018 | $238,000 | -24.7% | 35,300 | 0.0% | 0.00% | – |
| Q3 2018 | $316,000 | +10.9% | 35,300 | 0.0% | 0.00% | – |
| Q2 2018 | $285,000 | -1.7% | 35,300 | 0.0% | 0.00% | – |
| Q1 2018 | $290,000 | -6.1% | 35,300 | 0.0% | 0.00% | – |
| Q4 2017 | $309,000 | +10.8% | 35,300 | 0.0% | 0.00% | – |
| Q3 2017 | $279,000 | -4.8% | 35,300 | 0.0% | 0.00% | – |
| Q2 2017 | $293,000 | -34.0% | 35,300 | -33.8% | 0.00% | -100.0% |
| Q1 2017 | $444,000 | -2.4% | 53,319 | +21.2% | 0.00% | 0.0% |
| Q4 2016 | $455,000 | -28.8% | 43,979 | +9.9% | 0.00% | 0.0% |
| Q3 2016 | $639,000 | +103.5% | 40,003 | +13.3% | 0.00% | – |
| Q2 2016 | $314,000 | +540.8% | 35,300 | +96.7% | 0.00% | – |
| Q2 2015 | $49,000 | – | 17,950 | – | 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% |