BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 178 filers reported holding BLUEBIRD BIO INC in Q1 2023. The put-call ratio across all filers is 0.92 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $21 | -4.5% | 7,258 | +4.7% | 0.00% | – |
| Q2 2023 | $22 | +10.0% | 6,929 | +3.4% | 0.00% | – |
| Q1 2023 | $20 | +5.3% | 6,699 | +135.3% | 0.00% | – |
| Q4 2022 | $19 | -99.9% | 2,847 | -21.9% | 0.00% | – |
| Q3 2022 | $22,000 | +57.1% | 3,644 | +0.9% | 0.00% | – |
| Q2 2022 | $14,000 | -12.5% | 3,613 | +3.9% | 0.00% | – |
| Q1 2022 | $16,000 | -82.4% | 3,476 | -62.2% | 0.00% | – |
| Q4 2021 | $91,000 | +133.3% | 9,203 | +345.0% | 0.00% | – |
| Q3 2021 | $39,000 | -59.8% | 2,068 | -32.8% | 0.00% | – |
| Q2 2021 | $97,000 | +9600.0% | 3,076 | +4861.3% | 0.00% | – |
| Q1 2021 | $1,000 | -50.0% | 62 | 0.0% | 0.00% | – |
| Q4 2020 | $2,000 | -60.0% | 62 | -43.6% | 0.00% | – |
| Q3 2020 | $5,000 | -93.9% | 110 | -91.9% | 0.00% | – |
| Q2 2020 | $82,000 | +4000.0% | 1,358 | +5804.3% | 0.00% | – |
| Q3 2019 | $2,000 | -96.6% | 23 | -96.6% | 0.00% | – |
| Q3 2015 | $58,000 | -40.2% | 680 | +17.2% | 0.00% | – |
| Q2 2015 | $97,000 | +31.1% | 580 | -5.4% | 0.00% | – |
| Q1 2015 | $74,000 | -83.1% | 613 | -87.2% | 0.00% | -100.0% |
| Q4 2014 | $437,000 | – | 4,774 | – | 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% |