BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 314 filers reported holding BLUEBIRD BIO INC in Q2 2018. The put-call ratio across all filers is 0.60 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $210,000 | -40.2% | 11,000 | 0.0% | 0.05% | -45.2% |
| Q2 2021 | $351,000 | +5.7% | 11,000 | 0.0% | 0.09% | +5.7% |
| Q1 2021 | $332,000 | -30.3% | 11,000 | 0.0% | 0.09% | -32.3% |
| Q4 2020 | $476,000 | -19.7% | 11,000 | 0.0% | 0.13% | -31.9% |
| Q3 2020 | $593,000 | -10.2% | 11,000 | 0.0% | 0.19% | -12.8% |
| Q2 2020 | $660,000 | +30.7% | 11,000 | 0.0% | 0.22% | -4.8% |
| Q1 2020 | $505,000 | -66.1% | 11,000 | -35.3% | 0.23% | -57.2% |
| Q4 2019 | $1,491,000 | -4.5% | 17,000 | 0.0% | 0.54% | -25.5% |
| Q3 2019 | $1,561,000 | -27.8% | 17,000 | 0.0% | 0.72% | -10.1% |
| Q2 2019 | $2,163,000 | -19.1% | 17,000 | 0.0% | 0.80% | -18.8% |
| Q1 2019 | $2,675,000 | +102.0% | 17,000 | 0.0% | 0.99% | +20.2% |
| Q4 2018 | $1,324,000 | -30.4% | 17,000 | 0.0% | 0.82% | -9.1% |
| Q3 2018 | $1,903,000 | -39.3% | 17,000 | -15.0% | 0.90% | -25.0% |
| Q2 2018 | $3,137,000 | -8.1% | 20,000 | 0.0% | 1.20% | -9.5% |
| Q1 2018 | $3,413,000 | -4.1% | 20,000 | 0.0% | 1.33% | +6.1% |
| Q4 2017 | $3,560,000 | +29.6% | 20,000 | 0.0% | 1.26% | +17.4% |
| Q3 2017 | $2,746,000 | – | 20,000 | – | 1.07% | – |
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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% |