SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 98 filers reported holding SIENTRA INC in Q3 2020. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $64,000 | -68.0% | 18,731 | +123.1% | 0.01% | -73.5% |
| Q3 2018 | $200,000 | +22.0% | 8,396 | -50.4% | 0.05% | +8.9% |
| Q1 2018 | $164,000 | -1.2% | 16,926 | +43.1% | 0.04% | -2.2% |
| Q4 2017 | $166,000 | -8.8% | 11,826 | 0.0% | 0.05% | -8.0% |
| Q3 2017 | $182,000 | +58.3% | 11,826 | 0.0% | 0.05% | +66.7% |
| Q2 2017 | $115,000 | – | 11,826 | – | 0.03% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Abingworth LLP | 2,199,012 | $18,692,000 | 15.62% |
| Clarus Ventures, LLC | 2,730,765 | $23,266,000 | 15.32% |
| Cannell Capital | 1,113,571 | $9,488,000 | 3.03% |
| Cloverdale Capital Management, LLC | 351,039 | $2,991,000 | 2.40% |
| PURA VIDA INVESTMENTS, LLC | 500,000 | $4,260,000 | 1.56% |
| Park West Asset Management LLC | 1,618,676 | $13,791,000 | 1.07% |
| Atika Capital Management LLC | 210,000 | $1,789,000 | 1.06% |
| 22NW, LP | 132,400 | $1,128,000 | 0.68% |
| Schonfeld Strategic Advisors LLC | 335,000 | $2,854,000 | 0.37% |
| FIRST NEW YORK SECURITIES LLC /NY | 22,143 | $188,658,000 | 0.35% |