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 2019 | $1,895,000 | -80.9% | 20,640 | -73.5% | 0.02% | -81.5% |
| Q2 2019 | $9,922,000 | -19.4% | 78,004 | -0.3% | 0.08% | -21.4% |
| Q1 2019 | $12,314,000 | +116.0% | 78,270 | +33.4% | 0.10% | +94.3% |
| Q4 2018 | $5,701,000 | -41.8% | 58,684 | -12.6% | 0.05% | -29.3% |
| Q3 2018 | $9,802,000 | +8.1% | 67,140 | +16.2% | 0.08% | -1.3% |
| Q2 2018 | $9,070,000 | +243.7% | 57,792 | -6.9% | 0.08% | +245.5% |
| Q1 2016 | $2,639,000 | -40.5% | 62,085 | -10.1% | 0.02% | -42.1% |
| Q4 2015 | $4,434,000 | -14.5% | 69,047 | +13.9% | 0.04% | -15.6% |
| Q3 2015 | $5,185,000 | -56.0% | 60,606 | -13.4% | 0.04% | -52.6% |
| Q2 2015 | $11,788,000 | -9.4% | 70,013 | -35.0% | 0.10% | -4.0% |
| Q1 2015 | $13,004,000 | +5.8% | 107,679 | -19.6% | 0.10% | 0.0% |
| Q4 2014 | $12,287,000 | – | 133,966 | – | 0.10% | – |
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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% |