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 | $177,000 | -58.3% | 36,500 | -13.9% | 0.00% | -33.3% |
| Q4 2021 | $424,000 | -55.8% | 42,400 | -15.5% | 0.00% | -70.0% |
| Q3 2021 | $959,000 | -34.0% | 50,200 | +10.6% | 0.01% | -28.6% |
| Q2 2021 | $1,452,000 | +9.4% | 45,400 | +3.2% | 0.01% | +7.7% |
| Q1 2021 | $1,327,000 | +33.9% | 44,000 | +92.1% | 0.01% | +30.0% |
| Q4 2020 | $991,000 | +17.0% | 22,900 | +45.9% | 0.01% | 0.0% |
| Q3 2020 | $847,000 | +101.2% | 15,700 | +127.5% | 0.01% | +100.0% |
| Q2 2020 | $421,000 | +38.9% | 6,900 | +4.5% | 0.01% | +25.0% |
| Q1 2020 | $303,000 | -50.7% | 6,600 | -5.7% | 0.00% | -42.9% |
| Q4 2019 | $614,000 | +63.3% | 7,000 | +70.7% | 0.01% | +75.0% |
| Q3 2019 | $376,000 | -38.5% | 4,100 | -14.6% | 0.00% | -42.9% |
| Q2 2019 | $611,000 | -31.9% | 4,800 | -15.8% | 0.01% | -36.4% |
| Q1 2019 | $897,000 | +110.1% | 5,700 | +32.6% | 0.01% | +83.3% |
| Q4 2018 | $427,000 | -36.5% | 4,300 | -6.5% | 0.01% | -25.0% |
| Q3 2018 | $672,000 | -16.0% | 4,600 | -9.8% | 0.01% | -20.0% |
| Q2 2018 | $800,000 | – | 5,100 | – | 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% |