SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 107 filers reported holding SIENTRA INC in Q4 2020. The put-call ratio across all filers is 0.01 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $312,000 | -36.3% | 84,997 | -0.7% | 0.00% | -100.0% |
| Q3 2021 | $490,000 | -43.9% | 85,594 | -28.6% | 0.00% | -50.0% |
| Q1 2021 | $874,000 | +1518.5% | 119,800 | +761.7% | 0.00% | – |
| Q4 2020 | $54,000 | -97.1% | 13,903 | -93.3% | 0.00% | -100.0% |
| Q4 2019 | $1,865,000 | +1884.0% | 208,550 | +1336.2% | 0.01% | +800.0% |
| Q3 2019 | $94,000 | -86.6% | 14,521 | -87.2% | 0.00% | -80.0% |
| Q2 2019 | $701,000 | +287.3% | 113,863 | +439.0% | 0.01% | +400.0% |
| Q1 2019 | $181,000 | -95.6% | 21,123 | -87.7% | 0.00% | -94.4% |
| Q3 2018 | $4,115,000 | – | 172,300 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Abingworth LLP | 2,390,843 | $9,229,000 | 2.58% |
| X-Square Capital, LLC | 296,012 | $1,146,000 | 0.81% |
| QUANTUM CAPITAL MANAGEMENT | 344,741 | $1,334,000 | 0.78% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 4,162,804 | $16,110,000 | 0.47% |
| Granite Point Capital Management, L.P. | 2,367,088 | $9,161,000 | 0.47% |
| G2 Investment Partners Management LLC | 337,233 | $1,305,000 | 0.31% |
| Granite Point Capital Management, L.P. | 750,000 | $2,903,000 | 0.15% |
| A.R.T. Advisors, LLC | 23,691 | $92,000 | 0.14% |
| NEEDHAM INVESTMENT MANAGEMENT LLC | 300,000 | $1,162,000 | 0.12% |
| ALGERT GLOBAL LLC | 59,000 | $228,000 | 0.08% |