BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 236 filers reported holding BLUEBIRD BIO INC in Q2 2021. The put-call ratio across all filers is 1.04 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $42,000 | -67.7% | 1,300 | -69.8% | 0.01% | -75.0% |
| Q1 2021 | $130,000 | -50.4% | 4,309 | -28.9% | 0.02% | -52.4% |
| Q4 2020 | $262,000 | -33.2% | 6,059 | -16.5% | 0.04% | -44.0% |
| Q3 2020 | $392,000 | +396.2% | 7,259 | +458.4% | 0.08% | +341.2% |
| Q2 2020 | $79,000 | +43.6% | 1,300 | +9.4% | 0.02% | +13.3% |
| Q1 2020 | $55,000 | -9.8% | 1,188 | +69.7% | 0.02% | +7.1% |
| Q4 2019 | $61,000 | – | 700 | – | 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% |