BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 283 filers reported holding BLUEBIRD BIO INC in Q2 2019. The put-call ratio across all filers is 1.28 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $4,542,000 | -11.6% | 84,194 | 0.0% | 0.17% | -13.3% |
| Q2 2020 | $5,139,000 | +32.8% | 84,194 | 0.0% | 0.20% | +12.0% |
| Q1 2020 | $3,870,000 | -53.9% | 84,194 | -12.0% | 0.18% | -45.0% |
| Q4 2019 | $8,397,000 | -34.8% | 95,687 | -31.8% | 0.32% | -43.4% |
| Q3 2019 | $12,881,000 | -0.6% | 140,286 | +37.6% | 0.56% | +6.2% |
| Q2 2019 | $12,964,000 | -9.5% | 101,918 | +12.0% | 0.53% | -9.1% |
| Q1 2019 | $14,322,000 | +46.7% | 91,029 | -7.5% | 0.58% | +39.2% |
| Q4 2018 | $9,764,000 | -23.8% | 98,429 | +12.1% | 0.42% | -10.1% |
| Q3 2018 | $12,817,000 | +13.1% | 87,788 | +21.6% | 0.46% | +8.1% |
| Q2 2018 | $11,331,000 | +0.1% | 72,198 | +8.9% | 0.43% | -2.3% |
| Q1 2018 | $11,322,000 | +35.0% | 66,308 | +40.8% | 0.44% | +36.2% |
| Q4 2017 | $8,387,000 | +360.1% | 47,093 | +254.8% | 0.32% | +396.9% |
| Q3 2017 | $1,823,000 | +30.8% | 13,273 | 0.0% | 0.06% | +25.0% |
| Q2 2017 | $1,394,000 | -68.9% | 13,273 | -73.1% | 0.05% | -70.1% |
| Q1 2017 | $4,485,000 | +47.3% | 49,345 | 0.0% | 0.17% | +33.8% |
| Q4 2016 | $3,045,000 | -9.0% | 49,345 | 0.0% | 0.13% | +0.8% |
| Q3 2016 | $3,345,000 | +56.6% | 49,345 | 0.0% | 0.13% | +48.3% |
| Q2 2016 | $2,136,000 | +1.9% | 49,345 | 0.0% | 0.09% | -2.2% |
| Q1 2016 | $2,097,000 | -33.8% | 49,345 | 0.0% | 0.09% | -22.6% |
| Q4 2015 | $3,169,000 | -77.0% | 49,345 | -69.4% | 0.12% | -76.8% |
| Q3 2015 | $13,803,000 | +100.5% | 161,345 | +294.5% | 0.50% | +99.2% |
| Q2 2015 | $6,885,000 | +4.6% | 40,895 | -25.0% | 0.25% | -4.6% |
| Q1 2015 | $6,585,000 | +31.7% | 54,527 | 0.0% | 0.26% | +11.5% |
| Q4 2014 | $5,001,000 | -52.2% | 54,527 | -81.3% | 0.23% | -52.2% |
| Q3 2014 | $10,453,000 | +397.1% | 291,327 | +434.3% | 0.49% | +153.9% |
| Q2 2014 | $2,103,000 | +25.0% | 54,527 | -26.3% | 0.19% | +14.9% |
| Q1 2014 | $1,682,000 | – | 73,955 | – | 0.17% | – |
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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% |