BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 240 filers reported holding BLUEBIRD BIO INC in Q2 2015. The put-call ratio across all filers is 1.07 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $278,000 | -13.4% | 3,173 | -9.3% | 0.01% | -28.6% |
| Q3 2019 | $321,000 | -18.3% | 3,500 | +40.0% | 0.01% | -30.0% |
| Q1 2019 | $393,000 | +58.5% | 2,500 | 0.0% | 0.01% | 0.0% |
| Q4 2018 | $248,000 | -73.9% | 2,500 | -61.5% | 0.01% | -60.0% |
| Q3 2018 | $949,000 | +166.6% | 6,500 | +225.0% | 0.02% | +177.8% |
| Q4 2017 | $356,000 | +47.1% | 2,000 | 0.0% | 0.01% | -18.2% |
| Q1 2015 | $242,000 | -91.2% | 2,000 | -93.3% | 0.01% | -88.4% |
| Q4 2014 | $2,752,000 | -54.9% | 30,000 | -82.3% | 0.10% | -36.2% |
| Q3 2014 | $6,097,000 | +125.8% | 169,924 | +142.7% | 0.15% | +152.5% |
| Q2 2014 | $2,700,000 | -22.0% | 70,000 | -57.6% | 0.06% | -21.3% |
| Q4 2013 | $3,462,000 | -61.1% | 165,000 | -50.0% | 0.08% | -21.9% |
| Q3 2013 | $8,896,000 | – | 330,000 | – | 0.10% | – |
Download | ||||||
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% |