ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 164 filers reported holding ENERGY RECOVERY INC in Q4 2021. The put-call ratio across all filers is 0.55 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $507 | -19.7% | 23,889 | +6.0% | 0.00% | – |
| Q2 2023 | $631 | +25.7% | 22,546 | +3.5% | 0.00% | – |
| Q1 2023 | $502 | +16.2% | 21,777 | +3.4% | 0.00% | – |
| Q4 2022 | $432 | -99.9% | 21,064 | -2.6% | 0.00% | – |
| Q3 2022 | $471,000 | +33.8% | 21,631 | +19.3% | 0.00% | – |
| Q2 2022 | $352,000 | +5.7% | 18,125 | +9.6% | 0.00% | – |
| Q1 2022 | $333,000 | -0.6% | 16,530 | +6.1% | 0.00% | – |
| Q4 2021 | $335,000 | +7.4% | 15,574 | -4.9% | 0.00% | – |
| Q3 2021 | $312,000 | -16.4% | 16,374 | 0.0% | 0.00% | – |
| Q2 2021 | $373,000 | -20.5% | 16,374 | -36.0% | 0.00% | – |
| Q1 2021 | $469,000 | -24.5% | 25,572 | -43.8% | 0.00% | – |
| Q4 2020 | $621,000 | +38.6% | 45,497 | -16.8% | 0.00% | – |
| Q3 2020 | $448,000 | +8.0% | 54,691 | 0.0% | 0.00% | – |
| Q2 2020 | $415,000 | +45.1% | 54,691 | +42.3% | 0.00% | – |
| Q1 2020 | $286,000 | +144.4% | 38,435 | +221.1% | 0.00% | – |
| Q4 2019 | $117,000 | +20.6% | 11,968 | +14.3% | 0.00% | – |
| Q3 2019 | $97,000 | -9.3% | 10,470 | +1.6% | 0.00% | – |
| Q2 2019 | $107,000 | +20.2% | 10,307 | +1.0% | 0.00% | – |
| Q1 2019 | $89,000 | +30.9% | 10,207 | +1.0% | 0.00% | – |
| Q4 2018 | $68,000 | -24.4% | 10,107 | 0.0% | 0.00% | – |
| Q3 2018 | $90,000 | +9.8% | 10,107 | -1.0% | 0.00% | – |
| Q2 2018 | $82,000 | -2.4% | 10,207 | +0.4% | 0.00% | – |
| Q1 2018 | $84,000 | -4.5% | 10,168 | +0.7% | 0.00% | – |
| Q4 2017 | $88,000 | +10.0% | 10,097 | 0.0% | 0.00% | – |
| Q3 2017 | $80,000 | -4.8% | 10,097 | 0.0% | 0.00% | – |
| Q2 2017 | $84,000 | 0.0% | 10,097 | 0.0% | 0.00% | – |
| Q1 2017 | $84,000 | -99.5% | 10,097 | -99.7% | 0.00% | -100.0% |
| Q4 2014 | $18,028,000 | +49.4% | 3,420,963 | +0.4% | 0.00% | +33.3% |
| Q3 2014 | $12,065,000 | -28.0% | 3,408,063 | 0.0% | 0.00% | -25.0% |
| Q2 2014 | $16,768,000 | -7.3% | 3,408,063 | +0.2% | 0.00% | 0.0% |
| Q1 2014 | $18,089,000 | -32.5% | 3,400,163 | -29.4% | 0.00% | +33.3% |
| Q4 2013 | $26,780,000 | +53.4% | 4,816,726 | +100.0% | 0.00% | -25.0% |
| Q3 2013 | $17,461,000 | -12.6% | 2,408,363 | -50.2% | 0.00% | +33.3% |
| Q2 2013 | $19,980,000 | – | 4,837,926 | – | 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% |