BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 172 filers reported holding BLUEBIRD BIO INC in Q4 2014. The put-call ratio across all filers is 0.23 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2016 | $1,329,000 | +47.5% | 19,604 | -5.8% | 0.34% | +44.3% |
| Q2 2016 | $901,000 | +0.2% | 20,817 | -1.6% | 0.24% | -5.2% |
| Q1 2016 | $899,000 | -35.2% | 21,156 | -2.1% | 0.25% | -29.6% |
| Q4 2015 | $1,388,000 | -52.5% | 21,614 | -36.8% | 0.36% | -56.1% |
| Q3 2015 | $2,925,000 | -26.0% | 34,195 | +45.6% | 0.81% | -15.9% |
| Q2 2015 | $3,955,000 | +6.5% | 23,489 | -23.6% | 0.96% | +6.4% |
| Q1 2015 | $3,714,000 | +38.6% | 30,749 | +5.2% | 0.90% | +36.6% |
| Q4 2014 | $2,680,000 | – | 29,220 | – | 0.66% | – |
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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% |