BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 164 filers reported holding BLUEBIRD BIO INC in Q3 2022. The put-call ratio across all filers is 0.70 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $554,671 | -74.0% | 168,593 | -67.3% | 0.00% | -85.7% |
| Q2 2022 | $2,134,000 | -46.3% | 515,549 | -37.1% | 0.01% | -41.7% |
| Q1 2022 | $3,975,000 | +133.1% | 819,634 | +380.2% | 0.01% | +200.0% |
| Q4 2021 | $1,705,000 | -75.3% | 170,693 | -25.4% | 0.00% | -77.8% |
| Q1 2021 | $6,898,000 | +1218.9% | 228,802 | +1792.5% | 0.02% | +800.0% |
| Q4 2020 | $523,000 | -83.9% | 12,090 | -79.9% | 0.00% | -83.3% |
| Q3 2020 | $3,249,000 | -45.7% | 60,230 | -53.7% | 0.01% | -75.5% |
| Q1 2020 | $5,981,000 | +55.8% | 130,127 | +331.2% | 0.05% | +276.9% |
| Q2 2019 | $3,838,000 | -84.8% | 30,175 | -88.2% | 0.01% | -86.9% |
| Q4 2018 | $25,325,000 | +62.6% | 255,290 | +191.9% | 0.10% | +94.1% |
| Q4 2017 | $15,577,000 | -2.6% | 87,461 | -24.9% | 0.05% | -8.9% |
| Q3 2017 | $15,991,000 | +4976.5% | 116,431 | +3781.0% | 0.06% | +5500.0% |
| Q2 2017 | $315,000 | -92.2% | 3,000 | -93.2% | 0.00% | -92.3% |
| Q1 2017 | $4,018,000 | -87.7% | 44,200 | -77.2% | 0.01% | -91.4% |
| Q2 2015 | $32,580,000 | +6817.2% | 193,504 | +4861.6% | 0.15% | +7500.0% |
| Q1 2015 | $471,000 | -63.8% | 3,900 | -72.5% | 0.00% | -71.4% |
| Q4 2014 | $1,302,000 | +218.3% | 14,197 | +33.9% | 0.01% | +250.0% |
| Q2 2014 | $409,000 | – | 10,600 | – | 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% |