BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 178 filers reported holding BLUEBIRD BIO INC in Q1 2023. The put-call ratio across all filers is 0.92 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,277 | -7.6% | 420 | 0.0% | 0.00% | – |
| Q2 2023 | $1,382 | +3.4% | 420 | 0.0% | 0.00% | – |
| Q1 2023 | $1,336 | -54.0% | 420 | 0.0% | 0.00% | – |
| Q4 2022 | $2,906 | -3.1% | 420 | 0.0% | 0.00% | -100.0% |
| Q3 2022 | $3,000 | +50.0% | 420 | 0.0% | 0.00% | – |
| Q2 2022 | $2,000 | 0.0% | 420 | 0.0% | 0.00% | – |
| Q1 2022 | $2,000 | -50.0% | 420 | 0.0% | 0.00% | -100.0% |
| Q4 2021 | $4,000 | -50.0% | 420 | 0.0% | 0.00% | -50.0% |
| Q3 2021 | $8,000 | -38.5% | 420 | 0.0% | 0.00% | -33.3% |
| Q2 2021 | $13,000 | 0.0% | 420 | 0.0% | 0.00% | 0.0% |
| Q1 2021 | $13,000 | -27.8% | 420 | 0.0% | 0.00% | -40.0% |
| Q4 2020 | $18,000 | -21.7% | 420 | 0.0% | 0.01% | -28.6% |
| Q3 2020 | $23,000 | -8.0% | 420 | 0.0% | 0.01% | -12.5% |
| Q2 2020 | $25,000 | +31.6% | 420 | 0.0% | 0.01% | 0.0% |
| Q1 2020 | $19,000 | -47.2% | 420 | 0.0% | 0.01% | -55.6% |
| Q4 2019 | $36,000 | – | 420 | – | 0.02% | – |
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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% |