BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 178 filers reported holding BLUEBIRD BIO INC in Q1 2022. The put-call ratio across all filers is 1.32 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,288 | +44.1% | 423,733 | +56.0% | 0.01% | +71.4% |
| Q2 2023 | $894 | +20.8% | 271,627 | +154.0% | 0.01% | -36.4% |
| Q4 2022 | $740 | -100.0% | 106,923 | -56.0% | 0.01% | -45.0% |
| Q3 2022 | $1,539,000 | +115.2% | 243,095 | +40.7% | 0.02% | +122.2% |
| Q2 2022 | $715,000 | +114.1% | 172,759 | +150.7% | 0.01% | +125.0% |
| Q1 2022 | $334,000 | -78.7% | 68,909 | -16.1% | 0.00% | -81.0% |
| Q3 2021 | $1,570,000 | +259.3% | 82,133 | +913.7% | 0.02% | +133.3% |
| Q3 2020 | $437,000 | -68.3% | 8,102 | -64.1% | 0.01% | -75.0% |
| Q2 2020 | $1,379,000 | +241.3% | 22,585 | +413.3% | 0.04% | +157.1% |
| Q3 2019 | $404,000 | -13.9% | 4,400 | +19.4% | 0.01% | -26.3% |
| Q2 2019 | $469,000 | – | 3,686 | – | 0.02% | – |
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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% |