BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $132,383 | -7.6% | 43,547 | 0.0% | 0.00% | – |
| Q2 2023 | $143,270 | +15.7% | 43,547 | +11.8% | 0.00% | – |
| Q1 2023 | $123,851 | -44.9% | 38,947 | +20.0% | 0.00% | – |
| Q4 2022 | $224,609 | +15.9% | 32,458 | +6.1% | 0.00% | – |
| Q3 2022 | $193,724 | -20.3% | 30,604 | -47.9% | 0.00% | -100.0% |
| Q2 2022 | $243,000 | -11.6% | 58,711 | +3.6% | 0.00% | 0.0% |
| Q1 2022 | $275,000 | -41.2% | 56,679 | +21.1% | 0.00% | 0.0% |
| Q4 2021 | $468,000 | -8.9% | 46,804 | +74.2% | 0.00% | 0.0% |
| Q3 2021 | $514,000 | -39.6% | 26,874 | +1.0% | 0.00% | -50.0% |
| Q2 2021 | $851,000 | +87.4% | 26,616 | +76.9% | 0.00% | +100.0% |
| Q1 2021 | $454,000 | -33.8% | 15,049 | -5.0% | 0.00% | 0.0% |
| Q4 2020 | $686,000 | -23.0% | 15,845 | -4.1% | 0.00% | -50.0% |
| Q3 2020 | $891,000 | -14.1% | 16,521 | -2.8% | 0.00% | 0.0% |
| Q2 2020 | $1,037,000 | +129.4% | 16,991 | +72.6% | 0.00% | +100.0% |
| Q1 2020 | $452,000 | -46.8% | 9,842 | +1.6% | 0.00% | -50.0% |
| Q4 2019 | $850,000 | -5.2% | 9,688 | -0.8% | 0.00% | 0.0% |
| Q3 2019 | $897,000 | -62.0% | 9,769 | -47.4% | 0.00% | -60.0% |
| Q2 2019 | $2,362,000 | -42.8% | 18,568 | -29.2% | 0.01% | -44.4% |
| Q1 2019 | $4,128,000 | +43.6% | 26,239 | -9.4% | 0.01% | +28.6% |
| Q4 2018 | $2,874,000 | -30.7% | 28,975 | +2.1% | 0.01% | -22.2% |
| Q3 2018 | $4,145,000 | +3.4% | 28,384 | +11.1% | 0.01% | 0.0% |
| Q2 2018 | $4,010,000 | -88.0% | 25,550 | -86.9% | 0.01% | -87.3% |
| Q1 2018 | $33,355,000 | -8.8% | 195,347 | -4.9% | 0.07% | -6.6% |
| Q4 2017 | $36,593,000 | -20.2% | 205,463 | -38.4% | 0.08% | -23.2% |
| Q3 2017 | $45,837,000 | +100.7% | 333,721 | +53.5% | 0.10% | +94.1% |
| Q2 2017 | $22,837,000 | +1462.0% | 217,398 | +1251.6% | 0.05% | +1600.0% |
| Q1 2017 | $1,462,000 | +53.6% | 16,085 | +4.2% | 0.00% | +50.0% |
| Q4 2016 | $952,000 | -10.2% | 15,430 | -1.3% | 0.00% | 0.0% |
| Q3 2016 | $1,060,000 | +56.6% | 15,636 | 0.0% | 0.00% | 0.0% |
| Q2 2016 | $677,000 | +2.0% | 15,636 | +0.0% | 0.00% | 0.0% |
| Q1 2016 | $664,000 | -34.5% | 15,634 | -0.9% | 0.00% | 0.0% |
| Q4 2015 | $1,013,000 | -27.1% | 15,771 | -2.9% | 0.00% | -33.3% |
| Q3 2015 | $1,389,000 | -45.4% | 16,236 | +7.5% | 0.00% | -50.0% |
| Q2 2015 | $2,542,000 | +80.2% | 15,098 | +29.2% | 0.01% | +100.0% |
| Q1 2015 | $1,411,000 | +41.7% | 11,683 | +7.5% | 0.00% | +50.0% |
| Q4 2014 | $996,000 | +155.4% | 10,864 | 0.0% | 0.00% | +100.0% |
| Q3 2014 | $390,000 | -6.9% | 10,864 | 0.0% | 0.00% | 0.0% |
| Q2 2014 | $419,000 | – | 10,864 | – | 0.00% | – |
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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% |