BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 236 filers reported holding BLUEBIRD BIO INC in Q2 2021. The put-call ratio across all filers is 1.04 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $1,228,776 | +145.1% | 373,488 | +415.5% | 0.01% | +166.7% |
| Q4 2022 | $501,396 | -82.5% | 72,456 | -84.0% | 0.00% | -81.2% |
| Q3 2022 | $2,872,000 | +625.3% | 453,763 | +374.8% | 0.02% | +700.0% |
| Q2 2022 | $396,000 | -32.3% | 95,567 | -20.8% | 0.00% | -60.0% |
| Q1 2022 | $585,000 | -64.4% | 120,592 | +40.2% | 0.01% | -76.2% |
| Q3 2021 | $1,643,000 | -66.4% | 85,986 | -43.7% | 0.02% | -61.8% |
| Q2 2021 | $4,886,000 | +2.1% | 152,774 | -3.7% | 0.06% | -9.8% |
| Q1 2021 | $4,786,000 | -4.5% | 158,725 | +37.1% | 0.06% | -11.6% |
| Q4 2020 | $5,010,000 | +236.0% | 115,789 | +319.0% | 0.07% | +213.6% |
| Q3 2020 | $1,491,000 | +51.2% | 27,636 | +71.1% | 0.02% | +29.4% |
| Q2 2020 | $986,000 | -74.2% | 16,149 | -80.6% | 0.02% | -83.7% |
| Q1 2020 | $3,829,000 | +55.5% | 83,314 | +196.9% | 0.10% | +131.1% |
| Q4 2019 | $2,463,000 | +41.6% | 28,066 | +48.2% | 0.04% | +28.6% |
| Q3 2019 | $1,739,000 | -68.8% | 18,936 | -56.8% | 0.04% | -65.7% |
| Q2 2019 | $5,576,000 | +723.6% | 43,835 | +918.7% | 0.10% | +363.6% |
| Q1 2019 | $677,000 | -17.9% | 4,303 | -48.3% | 0.02% | -43.6% |
| Q4 2018 | $825,000 | +9066.7% | 8,318 | +13536.1% | 0.04% | – |
| Q3 2018 | $9,000 | -99.8% | 61 | -99.7% | 0.00% | -100.0% |
| Q2 2018 | $3,767,000 | +78.3% | 24,000 | +94.0% | 0.19% | +52.4% |
| Q1 2018 | $2,113,000 | +510.7% | 12,372 | +536.4% | 0.12% | +588.9% |
| Q4 2017 | $346,000 | +34.6% | 1,944 | -20.4% | 0.02% | +12.5% |
| Q2 2017 | $257,000 | +497.7% | 2,443 | +249.0% | 0.02% | +433.3% |
| Q4 2016 | $43,000 | +115.0% | 700 | +133.3% | 0.00% | +200.0% |
| Q3 2016 | $20,000 | +53.8% | 300 | +3.4% | 0.00% | 0.0% |
| Q2 2016 | $13,000 | -99.2% | 290 | -99.2% | 0.00% | -98.9% |
| Q1 2016 | $1,634,000 | -0.2% | 38,443 | +50.8% | 0.09% | -3.1% |
| Q4 2015 | $1,637,000 | -51.9% | 25,490 | -36.0% | 0.10% | -44.2% |
| Q3 2015 | $3,406,000 | +62.4% | 39,812 | +219.6% | 0.17% | +68.6% |
| Q2 2015 | $2,097,000 | +38.4% | 12,456 | -0.7% | 0.10% | +37.8% |
| Q1 2015 | $1,515,000 | +6487.0% | 12,543 | +4838.2% | 0.07% | +7300.0% |
| Q4 2014 | $23,000 | – | 254 | – | 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% |