BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 281 filers reported holding BLUEBIRD BIO INC in Q2 2020. The put-call ratio across all filers is 1.27 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $9,758,000 | -55.3% | 212,302 | -14.6% | 0.09% | -73.3% |
| Q4 2019 | $21,825,000 | +50.3% | 248,719 | +57.2% | 0.34% | +33.3% |
| Q3 2019 | $14,523,000 | -14.7% | 158,173 | +18.2% | 0.26% | -22.8% |
| Q2 2019 | $17,018,000 | +11.2% | 133,786 | +37.5% | 0.33% | -17.3% |
| Q1 2019 | $15,308,000 | +34690.9% | 97,301 | +31906.9% | 0.40% | +40300.0% |
| Q3 2018 | $44,000 | – | 304 | – | 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% |