BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 247 filers reported holding BLUEBIRD BIO INC in Q2 2017. The put-call ratio across all filers is 0.48 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $1,586,000 | -11.6% | 29,400 | 0.0% | 0.10% | -15.2% |
| Q2 2020 | $1,795,000 | -21.2% | 29,400 | -40.7% | 0.11% | -27.7% |
| Q1 2020 | $2,278,000 | -47.6% | 49,561 | 0.0% | 0.16% | -24.4% |
| Q4 2019 | $4,349,000 | -4.4% | 49,561 | 0.0% | 0.20% | +2.5% |
| Q3 2019 | $4,551,000 | -27.8% | 49,561 | 0.0% | 0.20% | -18.7% |
| Q2 2019 | $6,304,000 | -19.1% | 49,561 | 0.0% | 0.25% | -25.0% |
| Q1 2019 | $7,797,000 | +167.4% | 49,561 | +68.6% | 0.33% | +121.6% |
| Q4 2018 | $2,916,000 | -53.7% | 29,400 | -31.8% | 0.15% | -35.4% |
| Q3 2018 | $6,293,000 | +12.3% | 43,100 | +20.7% | 0.23% | +17.4% |
| Q2 2018 | $5,603,000 | -8.1% | 35,700 | 0.0% | 0.20% | -9.3% |
| Q1 2018 | $6,096,000 | +6.6% | 35,700 | +11.2% | 0.22% | +22.9% |
| Q4 2017 | $5,717,000 | +5.6% | 32,100 | -18.5% | 0.18% | -23.2% |
| Q3 2017 | $5,412,000 | +66.7% | 39,400 | +27.5% | 0.23% | +375.0% |
| Q2 2017 | $3,246,000 | +15.6% | 30,900 | 0.0% | 0.05% | +9.1% |
| Q1 2017 | $2,809,000 | +47.3% | 30,900 | 0.0% | 0.04% | +33.3% |
| Q4 2016 | $1,907,000 | +15.3% | 30,900 | +26.6% | 0.03% | +13.8% |
| Q3 2016 | $1,654,000 | -21.7% | 24,400 | -50.0% | 0.03% | -12.1% |
| Q2 2016 | $2,113,000 | +103.8% | 48,800 | +100.0% | 0.03% | +94.1% |
| Q1 2016 | $1,037,000 | -61.8% | 24,400 | -42.3% | 0.02% | -59.5% |
| Q4 2015 | $2,717,000 | +2415.7% | 42,300 | +957.5% | 0.04% | +2000.0% |
| Q3 2013 | $108,000 | – | 4,000 | – | 0.00% | – |
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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% |