ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 107 filers reported holding ENERGY RECOVERY INC in Q1 2019. The put-call ratio across all filers is 0.87 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $466 | -17.7% | 21,940 | +8.2% | 0.00% | – |
| Q2 2023 | $566 | -55.5% | 20,269 | -63.2% | 0.00% | -100.0% |
| Q1 2023 | $1,271 | +319.5% | 55,120 | +273.0% | 0.00% | – |
| Q4 2022 | $303 | -99.4% | 14,778 | +533.2% | 0.00% | – |
| Q3 2022 | $51,000 | -5.6% | 2,334 | -17.2% | 0.00% | – |
| Q2 2022 | $54,000 | -64.5% | 2,818 | -62.8% | 0.00% | – |
| Q1 2022 | $152,000 | -93.0% | 7,571 | -92.5% | 0.00% | – |
| Q4 2021 | $2,168,000 | +159.0% | 100,950 | +129.5% | 0.00% | – |
| Q3 2021 | $837,000 | +55.0% | 43,982 | +85.7% | 0.00% | – |
| Q2 2021 | $540,000 | -47.5% | 23,683 | -57.8% | 0.00% | -100.0% |
| Q1 2021 | $1,028,000 | +480.8% | 56,115 | +333.1% | 0.00% | – |
| Q4 2020 | $177,000 | +17.2% | 12,957 | -29.3% | 0.00% | – |
| Q3 2020 | $151,000 | -5.0% | 18,322 | -12.1% | 0.00% | – |
| Q2 2020 | $159,000 | -3.6% | 20,855 | -6.4% | 0.00% | – |
| Q1 2020 | $165,000 | -58.0% | 22,282 | -44.5% | 0.00% | – |
| Q4 2019 | $393,000 | +75.4% | 40,139 | +67.1% | 0.00% | – |
| Q3 2019 | $224,000 | -19.1% | 24,014 | -9.6% | 0.00% | – |
| Q2 2019 | $277,000 | +46.6% | 26,550 | +22.6% | 0.00% | – |
| Q1 2019 | $189,000 | +320.0% | 21,649 | +228.1% | 0.00% | – |
| Q4 2018 | $45,000 | -83.4% | 6,598 | -78.2% | 0.00% | – |
| Q3 2018 | $271,000 | -52.0% | 30,227 | -56.8% | 0.00% | – |
| Q2 2018 | $565,000 | -39.4% | 69,973 | -38.3% | 0.00% | -100.0% |
| Q1 2018 | $933,000 | -35.1% | 113,451 | -30.9% | 0.00% | 0.0% |
| Q4 2017 | $1,437,000 | +65.2% | 164,262 | +49.4% | 0.00% | 0.0% |
| Q3 2017 | $870,000 | +405.8% | 109,977 | +428.1% | 0.00% | – |
| Q2 2017 | $172,000 | -71.9% | 20,826 | -71.7% | 0.00% | – |
| Q1 2017 | $613,000 | +7.9% | 73,567 | +34.1% | 0.00% | -100.0% |
| Q4 2016 | $568,000 | +37.9% | 54,850 | +112.6% | 0.00% | – |
| Q3 2016 | $412,000 | -1.4% | 25,800 | -45.3% | 0.00% | – |
| Q2 2016 | $418,000 | +78.6% | 47,129 | +101.4% | 0.00% | – |
| Q1 2016 | $234,000 | +310.5% | 23,400 | +188.9% | 0.00% | – |
| Q4 2015 | $57,000 | +307.1% | 8,100 | +14.1% | 0.00% | – |
| Q3 2015 | $14,000 | +75.0% | 7,100 | +82.1% | 0.00% | – |
| Q2 2015 | $8,000 | -61.9% | 3,900 | -62.5% | 0.00% | – |
| Q1 2015 | $21,000 | +162.5% | 10,400 | +550.0% | 0.00% | – |
| Q4 2014 | $8,000 | -33.3% | 1,600 | -60.0% | 0.00% | – |
| Q3 2014 | $12,000 | -53.8% | 4,000 | -39.4% | 0.00% | – |
| Q2 2014 | $26,000 | -65.8% | 6,600 | -56.0% | 0.00% | – |
| Q1 2014 | $76,000 | -24.0% | 15,000 | -25.0% | 0.00% | – |
| Q4 2013 | $100,000 | -52.6% | 20,000 | -33.6% | 0.00% | – |
| Q3 2013 | $211,000 | +99.1% | 30,125 | +18.8% | 0.00% | – |
| Q2 2013 | $106,000 | – | 25,360 | – | 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% |