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 | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $1,501,000 | +82.4% | 205,883 | -2.7% | 0.00% | – |
| Q4 2020 | $823,000 | -48.3% | 211,689 | -54.8% | 0.00% | -100.0% |
| Q3 2020 | $1,592,000 | -10.0% | 468,190 | +2.4% | 0.00% | 0.0% |
| Q2 2020 | $1,769,000 | +66.7% | 457,217 | -14.2% | 0.00% | 0.0% |
| Q1 2020 | $1,061,000 | -76.2% | 532,953 | +6.8% | 0.00% | -50.0% |
| Q4 2019 | $4,463,000 | +141.9% | 499,227 | +75.3% | 0.00% | +100.0% |
| Q3 2019 | $1,845,000 | +17.3% | 284,793 | +11.5% | 0.00% | 0.0% |
| Q2 2019 | $1,573,000 | -13.3% | 255,354 | +20.7% | 0.00% | 0.0% |
| Q1 2019 | $1,815,000 | +1244.4% | 211,590 | +1896.1% | 0.00% | – |
| Q4 2018 | $135,000 | -38.6% | 10,600 | -32.1% | 0.00% | – |
| Q4 2017 | $220,000 | -8.7% | 15,618 | 0.0% | 0.00% | – |
| Q3 2017 | $241,000 | +33.1% | 15,618 | -16.3% | 0.00% | – |
| Q2 2017 | $181,000 | +42.5% | 18,660 | +23.4% | 0.00% | – |
| Q1 2017 | $127,000 | – | 15,126 | – | 0.00% | – |
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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% |