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 | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $211,593 | -47.2% | 30,577 | -51.8% | 0.02% | -50.0% |
| Q3 2022 | $401,000 | +89.2% | 63,400 | +23.3% | 0.03% | +57.9% |
| Q2 2022 | $212,000 | +821.7% | 51,400 | +969.1% | 0.02% | +850.0% |
| Q1 2022 | $23,000 | -48.9% | 4,808 | +237.4% | 0.00% | -50.0% |
| Q2 2021 | $45,000 | -84.2% | 1,425 | -73.0% | 0.00% | -87.9% |
| Q3 2020 | $285,000 | +562.8% | 5,284 | +643.2% | 0.03% | +450.0% |
| Q2 2020 | $43,000 | -43.4% | 711 | -18.3% | 0.01% | -25.0% |
| Q4 2019 | $76,000 | -40.2% | 870 | -37.6% | 0.01% | -38.5% |
| Q3 2019 | $127,000 | +408.0% | 1,394 | +597.0% | 0.01% | +333.3% |
| Q2 2019 | $25,000 | -67.9% | 200 | -56.3% | 0.00% | -57.1% |
| Q1 2018 | $78,000 | -70.7% | 458 | -69.4% | 0.01% | -72.0% |
| Q4 2017 | $266,000 | +478.3% | 1,498 | +235.9% | 0.02% | +525.0% |
| Q2 2017 | $46,000 | +119.0% | 446 | +88.2% | 0.00% | +100.0% |
| Q1 2017 | $21,000 | +200.0% | 237 | +106.1% | 0.00% | +100.0% |
| Q3 2016 | $7,000 | -94.3% | 115 | -96.0% | 0.00% | -92.3% |
| Q2 2016 | $123,000 | +459.1% | 2,848 | +431.3% | 0.01% | +225.0% |
| Q1 2016 | $22,000 | -94.6% | 536 | -91.5% | 0.00% | -94.2% |
| Q4 2015 | $405,000 | +61.4% | 6,310 | +114.9% | 0.07% | +56.8% |
| Q3 2015 | $251,000 | -1.6% | 2,936 | +93.7% | 0.04% | -4.3% |
| Q2 2015 | $255,000 | +355.4% | 1,516 | +147.7% | 0.05% | +155.6% |
| Q4 2014 | $56,000 | -30.0% | 612 | -70.9% | 0.02% | +38.5% |
| Q2 2014 | $80,000 | – | 2,100 | – | 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% |