ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 115 filers reported holding ENERGY RECOVERY INC in Q4 2018. The put-call ratio across all filers is 0.76 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $3 | -99.9% | 400 | 0.0% | 0.00% | – |
| Q3 2022 | $3,000 | 0.0% | 400 | 0.0% | 0.00% | – |
| Q2 2022 | $3,000 | 0.0% | 400 | 0.0% | 0.00% | – |
| Q1 2022 | $3,000 | -66.7% | 400 | -60.0% | 0.00% | – |
| Q3 2018 | $9,000 | +12.5% | 1,000 | 0.0% | 0.00% | – |
| Q2 2018 | $8,000 | -55.6% | 1,000 | -50.0% | 0.00% | -100.0% |
| Q1 2018 | $18,000 | 0.0% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $18,000 | +12.5% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $16,000 | -5.9% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $17,000 | 0.0% | 2,000 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $17,000 | +70.0% | 2,000 | +100.0% | 0.00% | – |
| Q4 2016 | $10,000 | -96.4% | 1,000 | -94.2% | 0.00% | -100.0% |
| Q3 2016 | $275,000 | +2955.6% | 17,201 | +1620.1% | 0.01% | +1300.0% |
| Q2 2016 | $9,000 | +28.6% | 1,000 | 0.0% | 0.00% | – |
| Q4 2015 | $7,000 | – | 1,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Trigran Investments, Inc. | 3,149,018 | $32,813,000 | 5.47% |
| 683 Capital Management, LLC | 1,100,000 | $11,462,000 | 1.04% |
| Avenir Corp | 805,900 | $8,397,000 | 0.88% |
| Alambic Investment Management, L.P. | 101,111 | $1,054,000 | 0.65% |
| ELKHORN PARTNERS LIMITED PARTNERSHIP | 81,581 | $850,000 | 0.51% |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 293,598 | $3,059,000 | 0.42% |
| CADENCE CAPITAL MANAGEMENT LLC | 357,196 | $3,722,000 | 0.37% |
| Cortina Asset Management, LLC | 538,561 | $5,612,000 | 0.35% |
| Community Capital Management, LLC | 23,036 | $240,000 | 0.28% |
| Yaupon Capital Management LP | 61,542 | $641,000 | 0.18% |