SIENTRA INC's ticker is SIEN and the CUSIP is 82621J105. A total of 56 filers reported holding SIENTRA INC in Q1 2017. The put-call ratio across all filers is 0.50 and the average weighting 0.7%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $20,000 | -4.8% | 2,301 | 0.0% | 0.00% | – |
| Q3 2016 | $21,000 | +40.0% | 2,301 | 0.0% | 0.00% | – |
| Q2 2016 | $15,000 | -92.5% | 2,301 | -92.1% | 0.00% | – |
| Q1 2016 | $199,000 | +22.1% | 29,034 | +5.6% | 0.00% | – |
| Q4 2015 | $163,000 | -40.7% | 27,500 | +1.3% | 0.00% | – |
| Q3 2015 | $275,000 | -55.2% | 27,141 | +11.5% | 0.00% | -100.0% |
| Q2 2015 | $614,000 | +82.7% | 24,337 | +39.1% | 0.00% | – |
| Q1 2015 | $336,000 | +31.2% | 17,494 | +14.7% | 0.00% | – |
| Q4 2014 | $256,000 | – | 15,256 | – | 0.00% | – |
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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% |