BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 124 filers reported holding BLUEBIRD BIO INC in Q3 2014. The put-call ratio across all filers is 0.26 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $243,000 | -86.2% | 1,363 | -91.9% | 0.01% | -86.2% |
| Q2 2017 | $1,763,000 | -60.3% | 16,785 | -65.6% | 0.06% | -57.2% |
| Q1 2017 | $4,437,000 | +187.7% | 48,810 | +95.4% | 0.15% | +176.4% |
| Q4 2016 | $1,542,000 | +262.8% | 24,984 | +403.3% | 0.06% | +266.7% |
| Q3 2015 | $425,000 | -94.7% | 4,964 | -89.6% | 0.02% | -94.6% |
| Q2 2015 | $8,033,000 | -21.3% | 47,709 | -43.5% | 0.28% | -21.5% |
| Q1 2015 | $10,206,000 | +63.6% | 84,510 | +24.2% | 0.35% | +41.0% |
| Q4 2014 | $6,240,000 | +125.5% | 68,033 | -11.8% | 0.25% | +139.0% |
| Q3 2014 | $2,767,000 | -13.9% | 77,132 | -7.4% | 0.10% | +1.0% |
| Q2 2014 | $3,213,000 | -1.5% | 83,304 | -41.9% | 0.10% | +1.0% |
| Q1 2014 | $3,261,000 | +915.9% | 143,414 | +1104.8% | 0.10% | +758.3% |
| Q3 2013 | $321,000 | – | 11,904 | – | 0.01% | – |
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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% |