ENERGY RECOVERY INC's ticker is ERII and the CUSIP is 29270J100. A total of 154 filers reported holding ENERGY RECOVERY INC in Q3 2021. The put-call ratio across all filers is 0.24 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $755,000 | -18.6% | 33,162 | -34.5% | 0.00% | -25.0% |
| Q1 2021 | $928,000 | +514.6% | 50,645 | +358.8% | 0.00% | +300.0% |
| Q4 2020 | $151,000 | +297.4% | 11,039 | +93.5% | 0.00% | – |
| Q4 2018 | $38,000 | -88.9% | 5,705 | -86.7% | 0.00% | -100.0% |
| Q2 2017 | $342,000 | +40.7% | 42,784 | +41.1% | 0.00% | 0.0% |
| Q1 2017 | $243,000 | – | 30,329 | – | 0.00% | – |
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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% |