ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 142 filers reported holding ENERGY RECOVERY INC in Q1 2021. The put-call ratio across all filers is 0.63 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $282,687 | -15.9% | 13,328 | +10.8% | 0.00% | 0.0% |
| Q2 2023 | $336,127 | +24.2% | 12,026 | +2.4% | 0.00% | 0.0% |
| Q1 2023 | $270,676 | +53.2% | 11,743 | +36.2% | 0.00% | 0.0% |
| Q4 2022 | $176,644 | -18.6% | 8,621 | -13.7% | 0.00% | 0.0% |
| Q3 2022 | $217,000 | +61.9% | 9,993 | +44.7% | 0.00% | 0.0% |
| Q2 2022 | $134,000 | -8.2% | 6,905 | -4.5% | 0.00% | 0.0% |
| Q1 2022 | $146,000 | +82.5% | 7,228 | +93.3% | 0.00% | – |
| Q4 2021 | $80,000 | +12.7% | 3,740 | 0.0% | 0.00% | – |
| Q3 2021 | $71,000 | -16.5% | 3,740 | 0.0% | 0.00% | – |
| Q2 2021 | $85,000 | -93.6% | 3,740 | -94.9% | 0.00% | -100.0% |
| Q1 2021 | $1,335,000 | +26.4% | 72,795 | -6.0% | 0.01% | +33.3% |
| Q4 2020 | $1,056,000 | +3306.5% | 77,401 | +1969.5% | 0.01% | – |
| Q3 2020 | $31,000 | +10.7% | 3,740 | 0.0% | 0.00% | – |
| Q2 2020 | $28,000 | 0.0% | 3,740 | 0.0% | 0.00% | – |
| Q1 2020 | $28,000 | -24.3% | 3,740 | 0.0% | 0.00% | – |
| Q4 2019 | $37,000 | +5.7% | 3,740 | 0.0% | 0.00% | – |
| Q3 2019 | $35,000 | -10.3% | 3,740 | 0.0% | 0.00% | – |
| Q2 2019 | $39,000 | +18.2% | 3,740 | 0.0% | 0.00% | – |
| Q1 2019 | $33,000 | +32.0% | 3,740 | 0.0% | 0.00% | – |
| Q4 2018 | $25,000 | -24.2% | 3,740 | 0.0% | 0.00% | – |
| Q3 2018 | $33,000 | +153.8% | 3,740 | +129.3% | 0.00% | – |
| Q2 2018 | $13,000 | 0.0% | 1,631 | 0.0% | 0.00% | – |
| Q1 2018 | $13,000 | -77.2% | 1,631 | -75.0% | 0.00% | -100.0% |
| Q4 2017 | $57,000 | +9.6% | 6,528 | 0.0% | 0.00% | – |
| Q3 2017 | $52,000 | -3.7% | 6,528 | 0.0% | 0.00% | -100.0% |
| Q2 2017 | $54,000 | -73.9% | 6,528 | -67.4% | 0.00% | -50.0% |
| Q4 2016 | $207,000 | -35.3% | 20,000 | 0.0% | 0.00% | -33.3% |
| Q3 2016 | $320,000 | +79.8% | 20,000 | 0.0% | 0.00% | +50.0% |
| Q2 2016 | $178,000 | -14.0% | 20,000 | 0.0% | 0.00% | -33.3% |
| Q1 2016 | $207,000 | +191.5% | 20,000 | +100.0% | 0.00% | +200.0% |
| Q4 2015 | $71,000 | – | 10,000 | – | 0.00% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Tortoise Index Solutions, LLC | 17,231 | $43,490,773 | 7.60% |
| Trigran Investments, Inc. | 3,469,877 | $71,097,780 | 7.13% |
| Lagoda Investment Management, L.P. | 289,520 | $5,932,265 | 4.00% |
| Avenir Corp | 1,723,386 | $35,312,179 | 3.54% |
| Montanaro Asset Management Ltd | 879,000 | $18,010,710 | 2.93% |
| Miura Global Management | 280,000 | $5,737,200 | 2.89% |
| ACK Asset Management | 727,400 | $14,904 | 2.74% |
| SCHOLTZ & COMPANY, LLC | 129,545 | $2,654 | 1.88% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 458,560 | $9,396 | 1.46% |
| Mesirow Institutional Investment Management, Inc. | 502,150 | $10,289,054 | 1.35% |