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 | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $1,167,000 | +2.5% | 240,624 | +111.2% | 0.00% | 0.0% |
| Q4 2021 | $1,138,000 | -56.3% | 113,927 | -16.4% | 0.00% | 0.0% |
| Q3 2021 | $2,604,000 | -53.4% | 136,245 | -22.1% | 0.00% | -66.7% |
| Q2 2021 | $5,590,000 | +102.9% | 174,804 | +91.3% | 0.00% | +50.0% |
| Q1 2021 | $2,755,000 | -65.0% | 91,378 | -49.8% | 0.00% | -60.0% |
| Q4 2020 | $7,871,000 | +15.1% | 181,913 | +43.5% | 0.01% | 0.0% |
| Q3 2020 | $6,838,000 | +52.1% | 126,754 | +72.1% | 0.01% | +66.7% |
| Q2 2020 | $4,496,000 | +76.7% | 73,655 | +33.0% | 0.00% | +50.0% |
| Q1 2020 | $2,545,000 | -45.4% | 55,368 | +4.3% | 0.00% | -33.3% |
| Q4 2019 | $4,657,000 | +26.4% | 53,076 | +32.3% | 0.00% | 0.0% |
| Q3 2019 | $3,683,000 | -29.6% | 40,112 | -2.5% | 0.00% | -25.0% |
| Q2 2019 | $5,234,000 | -15.4% | 41,150 | +4.6% | 0.00% | -20.0% |
| Q1 2019 | $6,187,000 | +136.1% | 39,326 | +48.8% | 0.01% | +66.7% |
| Q4 2018 | $2,621,000 | -31.3% | 26,425 | +1.1% | 0.00% | 0.0% |
| Q3 2018 | $3,815,000 | -20.0% | 26,133 | -13.9% | 0.00% | -40.0% |
| Q2 2018 | $4,766,000 | -13.8% | 30,365 | -6.2% | 0.01% | 0.0% |
| Q1 2018 | $5,526,000 | +2.8% | 32,366 | +7.2% | 0.01% | 0.0% |
| Q4 2017 | $5,377,000 | +42.5% | 30,190 | +9.9% | 0.01% | +25.0% |
| Q3 2017 | $3,773,000 | +61.5% | 27,469 | +23.5% | 0.00% | +33.3% |
| Q2 2017 | $2,336,000 | +13.0% | 22,238 | -2.2% | 0.00% | 0.0% |
| Q1 2017 | $2,067,000 | +64.2% | 22,743 | +11.5% | 0.00% | +50.0% |
| Q4 2016 | $1,259,000 | -25.2% | 20,405 | -17.8% | 0.00% | -33.3% |
| Q3 2016 | $1,683,000 | +105.7% | 24,826 | +31.3% | 0.00% | +200.0% |
| Q2 2016 | $818,000 | -40.8% | 18,904 | -41.9% | 0.00% | -50.0% |
| Q1 2016 | $1,382,000 | +49.1% | 32,517 | +125.2% | 0.00% | 0.0% |
| Q4 2015 | $927,000 | +30.9% | 14,440 | +74.5% | 0.00% | +100.0% |
| Q3 2015 | $708,000 | -67.4% | 8,273 | -35.8% | 0.00% | -75.0% |
| Q2 2015 | $2,169,000 | +235.2% | 12,885 | +140.5% | 0.00% | +300.0% |
| Q1 2015 | $647,000 | – | 5,357 | – | 0.00% | – |
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% |