BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 282 filers reported holding BLUEBIRD BIO INC in Q4 2019. The put-call ratio across all filers is 0.80 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $13,000 | -84.9% | 279 | -71.6% | 0.00% | -100.0% |
| Q4 2019 | $86,000 | -99.3% | 981 | -99.3% | 0.00% | -99.4% |
| Q3 2019 | $13,071,000 | +28.2% | 142,353 | +77.6% | 0.18% | +43.7% |
| Q2 2019 | $10,196,000 | +23.9% | 80,157 | +53.3% | 0.13% | +21.2% |
| Q1 2019 | $8,227,000 | +88.0% | 52,292 | +18.6% | 0.10% | +62.5% |
| Q4 2018 | $4,375,000 | -83.0% | 44,102 | -75.0% | 0.06% | -80.0% |
| Q3 2018 | $25,721,000 | -7.4% | 176,173 | -0.5% | 0.32% | -11.8% |
| Q2 2018 | $27,790,000 | -5.7% | 177,064 | +2.5% | 0.36% | -9.2% |
| Q1 2018 | $29,482,000 | – | 172,663 | – | 0.40% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 5,910,687 | $24,470,000 | 3.71% |
| Monaco Asset Management SAM | 306,142 | $1,267,000 | 0.55% |
| Parametrica Management Ltd | 90,105 | $374,000 | 0.41% |
| Kamunting Street Capital Management, L.P. | 55,200 | $229,000 | 0.31% |
| Birchview Capital, LP | 98,000 | $406,000 | 0.30% |
| Kamunting Street Capital Management, L.P. | 35,000 | $145,000 | 0.20% |
| PDT Partners, LLC | 519,477 | $2,151,000 | 0.19% |
| Graham Capital Management, L.P. | 781,912 | $3,237,000 | 0.13% |
| CAXTON ASSOCIATES LP | 220,154 | $911,000 | 0.09% |
| Baker Brothers Advisors | 2,499,715 | $10,349,000 | 0.06% |