SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 110 filers reported holding SIENTRA INC in Q2 2019. The put-call ratio across all filers is 2.14 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $73,000 | -90.2% | 36,707 | -56.1% | 0.04% | -55.7% |
| Q4 2019 | $748,000 | +38.0% | 83,700 | 0.0% | 0.09% | +27.5% |
| Q3 2019 | $542,000 | -29.6% | 83,700 | -33.0% | 0.07% | +30.2% |
| Q2 2019 | $770,000 | +320.8% | 125,000 | +590.6% | 0.05% | +120.8% |
| Q3 2015 | $183,000 | -16.1% | 18,100 | +39.2% | 0.02% | -35.1% |
| Q4 2014 | $218,000 | – | 13,000 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Abingworth LLP | 2,390,843 | $20,466,000 | 18.32% |
| X-Square Capital, LLC | 258,664 | $2,219,000 | 1.52% |
| QUANTUM CAPITAL MANAGEMENT | 224,959 | $1,930,000 | 1.04% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 2,730,632 | $23,429,000 | 0.90% |
| Granite Point Capital Management, L.P. | 880,000 | $7,550,000 | 0.73% |
| PURA VIDA INVESTMENTS, LLC | 281,200 | $2,413,000 | 0.34% |
| Endurant Capital Management LP | 88,373 | $758,000 | 0.30% |
| Granahan Investment Management | 566,909 | $4,864,000 | 0.26% |
| PURA VIDA INVESTMENTS, LLC | 200,000 | $1,716,000 | 0.24% |
| PURA VIDA INVESTMENTS, LLC | 190,429 | $1,634,000 | 0.23% |