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 2022 | $138 | – | 680 | 0.0% | 0.00% | – |
| Q3 2022 | $0 | -100.0% | 680 | 0.0% | 0.00% | – |
| Q2 2022 | $1,000 | -50.0% | 680 | 0.0% | 0.00% | – |
| Q1 2022 | $2,000 | 0.0% | 680 | 0.0% | 0.00% | – |
| Q4 2021 | $2,000 | -50.0% | 680 | 0.0% | 0.00% | – |
| Q3 2021 | $4,000 | -20.0% | 680 | 0.0% | 0.00% | – |
| Q2 2021 | $5,000 | 0.0% | 680 | 0.0% | 0.00% | – |
| Q1 2021 | $5,000 | +66.7% | 680 | 0.0% | 0.00% | – |
| Q4 2020 | $3,000 | +50.0% | 680 | 0.0% | 0.00% | – |
| Q3 2020 | $2,000 | -33.3% | 680 | 0.0% | 0.00% | – |
| Q2 2020 | $3,000 | +200.0% | 680 | 0.0% | 0.00% | – |
| Q1 2020 | $1,000 | -83.3% | 680 | 0.0% | 0.00% | – |
| Q4 2019 | $6,000 | +50.0% | 680 | 0.0% | 0.00% | – |
| Q3 2019 | $4,000 | 0.0% | 680 | 0.0% | 0.00% | – |
| Q2 2019 | $4,000 | -33.3% | 680 | 0.0% | 0.00% | – |
| Q1 2019 | $6,000 | -33.3% | 680 | 0.0% | 0.00% | – |
| Q4 2018 | $9,000 | -43.8% | 680 | 0.0% | 0.00% | -100.0% |
| Q3 2018 | $16,000 | +23.1% | 680 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $13,000 | +85.7% | 680 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $7,000 | -30.0% | 680 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $10,000 | 0.0% | 680 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $10,000 | +42.9% | 680 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $7,000 | +16.7% | 680 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $6,000 | 0.0% | 680 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $6,000 | 0.0% | 680 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $6,000 | +50.0% | 680 | 0.0% | 0.00% | – |
| Q2 2016 | $4,000 | -20.0% | 680 | 0.0% | 0.00% | -100.0% |
| Q1 2016 | $5,000 | +25.0% | 680 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $4,000 | -42.9% | 680 | 0.0% | 0.00% | -50.0% |
| Q3 2015 | $7,000 | -58.8% | 680 | 0.0% | 0.00% | -66.7% |
| Q2 2015 | $17,000 | +30.8% | 680 | 0.0% | 0.01% | +20.0% |
| Q1 2015 | $13,000 | – | 680 | – | 0.01% | – |
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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% |