SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 110 filers reported holding SIENTRA INC in Q3 2018. The put-call ratio across all filers is 0.31 and the average weighting 0.6%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $154,000 | +69.2% | 42,143 | +165.3% | 0.00% | – |
| Q3 2021 | $91,000 | -73.9% | 15,888 | -63.8% | 0.00% | – |
| Q2 2021 | $349,000 | -58.0% | 43,882 | -61.5% | 0.00% | – |
| Q1 2021 | $830,000 | +403.0% | 113,850 | +135.1% | 0.00% | – |
| Q3 2020 | $165,000 | +28.9% | 48,422 | +46.4% | 0.00% | – |
| Q2 2020 | $128,000 | -83.2% | 33,072 | +3.4% | 0.00% | -100.0% |
| Q3 2018 | $764,000 | – | 32,000 | – | 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% |