BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 207 filers reported holding BLUEBIRD BIO INC in Q3 2016. The put-call ratio across all filers is 1.20 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $28,000 | -39.1% | 2,763 | +13.6% | 0.00% | – |
| Q3 2021 | $46,000 | -99.6% | 2,433 | -99.2% | 0.00% | -100.0% |
| Q2 2021 | $10,319,000 | +449.2% | 322,685 | +417.9% | 0.01% | +500.0% |
| Q1 2021 | $1,879,000 | -28.2% | 62,312 | +3.0% | 0.00% | -50.0% |
| Q4 2020 | $2,617,000 | +297.7% | 60,484 | +395.9% | 0.00% | +300.0% |
| Q3 2020 | $658,000 | -35.0% | 12,198 | -26.5% | 0.00% | -50.0% |
| Q2 2020 | $1,013,000 | +59.3% | 16,590 | +20.0% | 0.00% | 0.0% |
| Q1 2020 | $636,000 | +32.0% | 13,824 | +151.9% | 0.00% | +100.0% |
| Q4 2019 | $482,000 | -44.9% | 5,488 | -57.5% | 0.00% | -66.7% |
| Q3 2016 | $874,000 | +2.0% | 12,900 | -34.8% | 0.00% | 0.0% |
| Q2 2016 | $857,000 | +5.0% | 19,800 | +3.1% | 0.00% | 0.0% |
| Q1 2016 | $816,000 | -58.9% | 19,200 | -37.8% | 0.00% | -66.7% |
| Q4 2015 | $1,983,000 | +6.9% | 30,881 | +42.4% | 0.01% | +12.5% |
| Q3 2015 | $1,855,000 | +1004.2% | 21,681 | +2068.1% | 0.01% | +700.0% |
| Q2 2015 | $168,000 | – | 1,000 | – | 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% |