BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 166 filers reported holding BLUEBIRD BIO INC in Q3 2023. The put-call ratio across all filers is 0.94 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $1,000 | -85.7% | 146 | -80.3% | 0.00% | – |
| Q4 2021 | $7,000 | -50.0% | 741 | +2.9% | 0.00% | -100.0% |
| Q3 2021 | $14,000 | -67.4% | 720 | -46.6% | 0.00% | -50.0% |
| Q2 2021 | $43,000 | -12.2% | 1,349 | -17.0% | 0.00% | -33.3% |
| Q1 2021 | $49,000 | -33.8% | 1,625 | -4.4% | 0.00% | -25.0% |
| Q4 2020 | $74,000 | -54.9% | 1,700 | -44.2% | 0.00% | -63.6% |
| Q3 2020 | $164,000 | +88.5% | 3,046 | +113.8% | 0.01% | +83.3% |
| Q2 2020 | $87,000 | +123.1% | 1,425 | +67.6% | 0.01% | +100.0% |
| Q1 2020 | $39,000 | -35.0% | 850 | +24.3% | 0.00% | -25.0% |
| Q4 2019 | $60,000 | -6.2% | 684 | -1.7% | 0.00% | -20.0% |
| Q3 2019 | $64,000 | -60.5% | 696 | -45.3% | 0.01% | -64.3% |
| Q2 2019 | $162,000 | +1146.2% | 1,273 | +1298.9% | 0.01% | +1300.0% |
| Q3 2018 | $13,000 | 0.0% | 91 | +12.3% | 0.00% | 0.0% |
| Q2 2018 | $13,000 | +44.4% | 81 | +50.0% | 0.00% | 0.0% |
| Q1 2018 | $9,000 | -10.0% | 54 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $10,000 | +66.7% | 54 | +22.7% | 0.00% | 0.0% |
| Q3 2017 | $6,000 | +20.0% | 44 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $5,000 | -44.4% | 44 | -78.0% | 0.00% | -50.0% |
| Q1 2016 | $9,000 | +50.0% | 200 | +100.0% | 0.00% | +100.0% |
| Q4 2015 | $6,000 | -64.7% | 100 | -50.0% | 0.00% | -75.0% |
| Q3 2015 | $17,000 | -50.0% | 200 | 0.0% | 0.00% | -42.9% |
| Q2 2015 | $34,000 | +41.7% | 200 | 0.0% | 0.01% | +40.0% |
| Q1 2015 | $24,000 | – | 200 | – | 0.01% | – |
Download | ||||||
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% |