BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 177 filers reported holding BLUEBIRD BIO INC in Q4 2021. The put-call ratio across all filers is 1.00 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $496 | -48.7% | 163 | -44.6% | 0.00% | – |
| Q2 2023 | $967 | +285.3% | 294 | +272.2% | 0.00% | – |
| Q1 2023 | $251 | -95.6% | 79 | -90.3% | 0.00% | -100.0% |
| Q4 2022 | $5,661 | +183.0% | 818 | +165.6% | 0.00% | – |
| Q3 2022 | $2,000 | – | 308 | +528.6% | 0.00% | – |
| Q2 2022 | $0 | -100.0% | 49 | -76.7% | 0.00% | – |
| Q1 2022 | $1,000 | 0.0% | 210 | +57.9% | 0.00% | – |
| Q4 2021 | $1,000 | -66.7% | 133 | 0.0% | 0.00% | -100.0% |
| Q3 2021 | $3,000 | +50.0% | 133 | +146.3% | 0.00% | – |
| Q1 2021 | $2,000 | -50.0% | 54 | -40.7% | 0.00% | -100.0% |
| Q4 2020 | $4,000 | +300.0% | 91 | +468.8% | 0.00% | – |
| Q2 2020 | $1,000 | – | 16 | – | 0.00% | – |
| Q1 2020 | $0 | – | 0 | – | 0.00% | – |
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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% |