BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 251 filers reported holding BLUEBIRD BIO INC in Q1 2020. The put-call ratio across all filers is 1.33 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $319,000 | -47.5% | 6,930 | 0.0% | 0.01% | -30.0% |
| Q4 2019 | $608,000 | -4.4% | 6,930 | 0.0% | 0.01% | -16.7% |
| Q3 2019 | $636,000 | -41.4% | 6,930 | -18.8% | 0.01% | -45.5% |
| Q2 2019 | $1,085,000 | -19.2% | 8,530 | 0.0% | 0.02% | -26.7% |
| Q1 2019 | $1,342,000 | +46.5% | 8,530 | -7.6% | 0.03% | +25.0% |
| Q4 2018 | $916,000 | -63.7% | 9,230 | -46.5% | 0.02% | -35.1% |
| Q3 2018 | $2,520,000 | +119.1% | 17,260 | +135.5% | 0.04% | +54.2% |
| Q2 2018 | $1,150,000 | +3.1% | 7,330 | +12.3% | 0.02% | -4.0% |
| Q1 2018 | $1,115,000 | +38.2% | 6,530 | +44.2% | 0.02% | +150.0% |
| Q4 2017 | $807,000 | – | 4,530 | – | 0.01% | – |
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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% |