SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 108 filers reported holding SIENTRA INC in Q4 2018. The put-call ratio across all filers is 5.74 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $78,000 | +90.2% | 3,250 | +52.9% | 0.17% | +73.5% |
| Q2 2018 | $41,000 | +485.7% | 2,125 | +325.0% | 0.10% | +476.5% |
| Q4 2017 | $7,000 | -12.5% | 500 | 0.0% | 0.02% | +21.4% |
| Q3 2017 | $8,000 | +60.0% | 500 | 0.0% | 0.01% | +75.0% |
| Q2 2017 | $5,000 | -16.7% | 500 | +100.0% | 0.01% | +14.3% |
| Q2 2015 | $6,000 | – | 250 | – | 0.01% | – |
Download | ||||||
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% |