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 2021 | $58,000 | -99.6% | 3,035 | -99.3% | 0.00% | -100.0% |
| Q2 2021 | $14,504,000 | +69.3% | 453,530 | +59.6% | 0.03% | +52.9% |
| Q1 2021 | $8,568,000 | -81.2% | 284,168 | +48.6% | 0.02% | -10.5% |
| Q4 2020 | $45,499,000 | +479.2% | 191,186 | +31.3% | 0.02% | -17.4% |
| Q3 2020 | $7,856,000 | +64.8% | 145,606 | +86.5% | 0.02% | +43.8% |
| Q2 2020 | $4,766,000 | +212.9% | 78,072 | +135.7% | 0.02% | +23.1% |
| Q1 2020 | $1,523,000 | -46.9% | 33,119 | +1.3% | 0.01% | -27.8% |
| Q4 2019 | $2,868,000 | +31.3% | 32,687 | +37.5% | 0.02% | +12.5% |
| Q3 2019 | $2,184,000 | -8.0% | 23,779 | +27.4% | 0.02% | -11.1% |
| Q2 2019 | $2,375,000 | -14.0% | 18,671 | +6.4% | 0.02% | -21.7% |
| Q1 2019 | $2,761,000 | +51.9% | 17,551 | -4.2% | 0.02% | +15.0% |
| Q4 2018 | $1,818,000 | -18.1% | 18,325 | +20.4% | 0.02% | +17.6% |
| Q3 2018 | $2,221,000 | +25.7% | 15,214 | +35.1% | 0.02% | +13.3% |
| Q2 2018 | $1,767,000 | +7.6% | 11,258 | +17.1% | 0.02% | 0.0% |
| Q1 2018 | $1,642,000 | -17.3% | 9,614 | -13.8% | 0.02% | -11.8% |
| Q4 2017 | $1,986,000 | +25.3% | 11,153 | -3.4% | 0.02% | +21.4% |
| Q3 2017 | $1,585,000 | -5.4% | 11,543 | -27.7% | 0.01% | -12.5% |
| Q2 2017 | $1,676,000 | +54.0% | 15,958 | +33.3% | 0.02% | +60.0% |
| Q1 2017 | $1,088,000 | +47.4% | 11,969 | 0.0% | 0.01% | +42.9% |
| Q4 2016 | $738,000 | -9.0% | 11,969 | 0.0% | 0.01% | -30.0% |
| Q3 2016 | $811,000 | +56.6% | 11,969 | 0.0% | 0.01% | +42.9% |
| Q2 2016 | $518,000 | +1.8% | 11,969 | 0.0% | 0.01% | -12.5% |
| Q1 2016 | $509,000 | +39.1% | 11,969 | +110.3% | 0.01% | +14.3% |
| Q4 2015 | $366,000 | +12.3% | 5,692 | +49.2% | 0.01% | 0.0% |
| Q3 2015 | $326,000 | -35.4% | 3,816 | +27.2% | 0.01% | 0.0% |
| Q2 2015 | $505,000 | – | 3,000 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 1,550,000 | $7,518,000 | 1.50% |
| Birchview Capital, LP | 84,000 | $407,000 | 0.29% |
| PDT Partners, LLC | 519,485 | $2,520,000 | 0.22% |
| OCCUDO QUANTITATIVE STRATEGIES LP | 320,922 | $1,556,000 | 0.13% |
| Virtus ETF Advisers LLC | 40,607 | $197,000 | 0.09% |
| Baker Brothers Advisors | 2,499,715 | $12,124,000 | 0.07% |
| Green Alpha Advisors, LLC | 14,660 | $71,000 | 0.05% |
| Quinn Opportunity Partners LLC | 140,824 | $683,000 | 0.03% |
| Rafferty Asset Management, LLC | 979,122 | $4,749,000 | 0.03% |
| Inspire Investing, LLC | 48,724 | $236,000 | 0.03% |