BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 238 filers reported holding BLUEBIRD BIO INC in Q1 2021. The put-call ratio across all filers is 1.69 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $273,782,000 | +58.8% | 6,327,302 | +98.0% | 0.26% | -30.0% |
| Q3 2020 | $172,409,000 | -9.8% | 3,195,715 | +2.1% | 0.37% | -19.3% |
| Q2 2020 | $191,089,000 | +33.3% | 3,130,551 | +0.3% | 0.46% | -3.3% |
| Q1 2020 | $143,400,000 | -48.6% | 3,120,096 | -1.8% | 0.48% | -40.9% |
| Q4 2019 | $278,751,000 | +39.2% | 3,176,644 | +45.7% | 0.81% | +25.8% |
| Q3 2019 | $200,183,000 | +42.0% | 2,180,163 | +96.7% | 0.64% | +53.5% |
| Q2 2019 | $141,006,000 | – | 1,108,534 | – | 0.42% | – |
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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% |