BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 178 filers reported holding BLUEBIRD BIO INC in Q1 2022. The put-call ratio across all filers is 1.32 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $1,266,000 | -41.2% | 261,107 | +21.1% | 0.00% | -33.3% |
| Q4 2021 | $2,153,000 | +193.3% | 215,536 | +2476.6% | 0.00% | +50.0% |
| Q4 2019 | $734,000 | -4.4% | 8,365 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $768,000 | -63.9% | 8,365 | -50.0% | 0.00% | -60.0% |
| Q2 2019 | $2,128,000 | +4.9% | 16,729 | +29.7% | 0.01% | 0.0% |
| Q1 2019 | $2,029,000 | -72.2% | 12,898 | -82.5% | 0.01% | -73.7% |
| Q4 2018 | $7,308,000 | -32.1% | 73,674 | 0.0% | 0.02% | -17.4% |
| Q3 2018 | $10,756,000 | -58.7% | 73,674 | -55.6% | 0.02% | -23.3% |
| Q2 2018 | $26,038,000 | -2.4% | 165,906 | +6.2% | 0.03% | -51.6% |
| Q1 2018 | $26,683,000 | – | 156,268 | – | 0.06% | – |
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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% |