SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 118 filers reported holding SIENTRA INC in Q3 2021. The put-call ratio across all filers is 0.43 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $164,000 | -90.6% | 28,629 | -88.0% | 0.00% | -85.7% |
| Q1 2021 | $1,746,000 | +39.7% | 239,487 | +71.3% | 0.01% | +16.7% |
| Q4 2019 | $1,250,000 | -39.9% | 139,792 | -58.6% | 0.01% | -53.8% |
| Q2 2019 | $2,080,000 | +70.2% | 337,763 | +137.3% | 0.01% | +225.0% |
| Q1 2019 | $1,222,000 | +218.2% | 142,332 | +371.6% | 0.00% | 0.0% |
| Q4 2018 | $384,000 | +16.0% | 30,183 | -11.8% | 0.00% | +100.0% |
| Q1 2018 | $331,000 | – | 34,225 | – | 0.00% | – |
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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% |