BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 211 filers reported holding BLUEBIRD BIO INC in Q4 2016. The put-call ratio across all filers is 0.81 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $133,000 | +11.8% | 3,055 | +38.9% | 0.02% | -13.8% |
| Q3 2020 | $119,000 | -27.9% | 2,200 | -18.5% | 0.03% | -34.1% |
| Q2 2020 | $165,000 | +31.0% | 2,700 | 0.0% | 0.04% | +7.3% |
| Q1 2020 | $126,000 | -66.8% | 2,700 | -37.2% | 0.04% | -57.7% |
| Q4 2019 | $380,000 | -1.6% | 4,300 | +2.4% | 0.10% | -10.2% |
| Q3 2019 | $386,000 | -28.0% | 4,200 | 0.0% | 0.11% | -27.5% |
| Q2 2019 | $536,000 | -14.9% | 4,200 | +5.0% | 0.15% | -16.8% |
| Q1 2019 | $630,000 | +58.3% | 4,000 | 0.0% | 0.18% | +33.6% |
| Q4 2018 | $398,000 | -28.4% | 4,000 | +5.3% | 0.13% | -20.7% |
| Q3 2018 | $556,000 | -1.8% | 3,800 | +5.6% | 0.17% | -4.5% |
| Q2 2018 | $566,000 | -99.9% | 3,600 | +5.9% | 0.18% | -5.9% |
| Q1 2018 | $580,550,000 | +117.3% | 3,400 | +126.7% | 0.19% | +118.6% |
| Q4 2017 | $267,150,000 | -48.8% | 1,500 | -60.5% | 0.09% | -50.3% |
| Q3 2017 | $521,930,000 | +71.3% | 3,800 | +31.0% | 0.17% | +106.0% |
| Q2 2017 | $304,645,000 | +15.6% | 2,900 | 0.0% | 0.08% | +1.2% |
| Q1 2017 | $263,610,000 | +33.5% | 2,900 | -9.4% | 0.08% | +36.1% |
| Q4 2016 | $197,440,000 | -46.1% | 3,200 | -22.2% | 0.06% | +17.3% |
| Q3 2016 | $366,012,000 | +745.5% | 4,114 | +311.4% | 0.05% | +300.0% |
| Q2 2016 | $43,290,000 | +1.9% | 1,000 | 0.0% | 0.01% | 0.0% |
| Q1 2016 | $42,500,000 | -33.8% | 1,000 | 0.0% | 0.01% | -27.8% |
| Q4 2015 | $64,220,000 | -24.9% | 1,000 | 0.0% | 0.02% | -33.3% |
| Q3 2015 | $85,550,000 | – | 1,000 | – | 0.03% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 4,282,827 | $13,019,794 | 1.84% |
| Birchview Capital, LP | 455,200 | $1,383,808 | 1.18% |
| PFM Health Sciences, LP | 6,040,934 | $18,364,439 | 0.86% |
| Lion Point Capital, LP | 531,256 | $1,615,018 | 0.72% |
| Endurant Capital Management LP | 251,785 | $765,426 | 0.69% |
| Bleichroeder LP | 900,000 | $2,736,000 | 0.67% |
| Connacht Asset Management LP | 31,634 | $96,167 | 0.57% |
| Granahan Investment Management | 5,137,778 | $15,618,845 | 0.56% |
| Frazier Life Sciences Management, L.P. | 1,709,907 | $5,198,117 | 0.34% |
| Contrarius Investment Management Ltd | 1,308,002 | $3,976 | 0.22% |