ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 122 filers reported holding ENERGY RECOVERY INC in Q4 2017. The put-call ratio across all filers is 0.55 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $54,000 | -22.9% | 2,556 | -31.2% | 0.00% | -25.0% |
| Q3 2021 | $70,000 | -16.7% | 3,714 | 0.0% | 0.00% | -20.0% |
| Q2 2021 | $84,000 | +300.0% | 3,714 | +220.7% | 0.01% | +400.0% |
| Q1 2021 | $21,000 | +40.0% | 1,158 | 0.0% | 0.00% | 0.0% |
| Q4 2020 | $15,000 | +66.7% | 1,158 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $9,000 | +12.5% | 1,158 | 0.0% | 0.00% | 0.0% |
| Q2 2020 | $8,000 | 0.0% | 1,158 | 0.0% | 0.00% | 0.0% |
| Q1 2020 | $8,000 | +700.0% | 1,158 | +672.0% | 0.00% | – |
| Q4 2017 | $1,000 | – | 150 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Trigran Investments, Inc. | 5,520,408 | $41,928,000 | 8.21% |
| Avenir Corp | 1,576,727 | $11,975,000 | 1.36% |
| ELKHORN PARTNERS LIMITED PARTNERSHIP | 69,000 | $524,000 | 0.41% |
| 683 Capital Management, LLC | 520,000 | $3,950,000 | 0.32% |
| FNY Investment Advisers, LLC | 50,007 | $379,000 | 0.22% |
| Monarch Partners Asset Management LLC | 107,324 | $815,000 | 0.20% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 141,552 | $1,075,000 | 0.18% |
| HEARTLAND ADVISORS INC | 168,943 | $1,283,000 | 0.11% |
| Redmond Asset Management, LLC | 31,041 | $236,000 | 0.10% |
| NJ State Employees Deferred Compensation Plan | 59,000 | $448,000 | 0.08% |