BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 306 filers reported holding BLUEBIRD BIO INC in Q1 2018. The put-call ratio across all filers is 0.94 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $2,058,000 | -2.1% | 11,555 | -24.5% | 0.01% | -10.0% |
| Q3 2017 | $2,102,000 | +699.2% | 15,300 | +512.0% | 0.01% | +400.0% |
| Q2 2017 | $263,000 | +15.9% | 2,500 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $227,000 | -73.9% | 2,500 | -82.3% | 0.00% | -66.7% |
| Q4 2016 | $870,000 | -34.8% | 14,100 | -28.4% | 0.01% | -40.0% |
| Q3 2016 | $1,335,000 | +56.5% | 19,700 | 0.0% | 0.01% | +42.9% |
| Q2 2016 | $853,000 | -64.5% | 19,700 | -29.9% | 0.01% | -46.2% |
| Q3 2015 | $2,403,000 | -80.2% | 28,100 | -61.0% | 0.01% | -81.9% |
| Q2 2015 | $12,140,000 | – | 72,100 | – | 0.07% | – |
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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% |