BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $1,586,000 | -11.6% | 29,400 | 0.0% | 0.10% | -15.2% |
| Q2 2020 | $1,795,000 | -21.2% | 29,400 | -40.7% | 0.11% | -27.7% |
| Q1 2020 | $2,278,000 | -47.6% | 49,561 | 0.0% | 0.16% | -24.4% |
| Q4 2019 | $4,349,000 | -4.4% | 49,561 | 0.0% | 0.20% | +2.5% |
| Q3 2019 | $4,551,000 | -27.8% | 49,561 | 0.0% | 0.20% | -18.7% |
| Q2 2019 | $6,304,000 | -19.1% | 49,561 | 0.0% | 0.25% | -25.0% |
| Q1 2019 | $7,797,000 | +167.4% | 49,561 | +68.6% | 0.33% | +121.6% |
| Q4 2018 | $2,916,000 | -53.7% | 29,400 | -31.8% | 0.15% | -35.4% |
| Q3 2018 | $6,293,000 | +12.3% | 43,100 | +20.7% | 0.23% | +17.4% |
| Q2 2018 | $5,603,000 | -8.1% | 35,700 | 0.0% | 0.20% | -9.3% |
| Q1 2018 | $6,096,000 | +6.6% | 35,700 | +11.2% | 0.22% | +22.9% |
| Q4 2017 | $5,717,000 | +5.6% | 32,100 | -18.5% | 0.18% | -23.2% |
| Q3 2017 | $5,412,000 | +66.7% | 39,400 | +27.5% | 0.23% | +375.0% |
| Q2 2017 | $3,246,000 | +15.6% | 30,900 | 0.0% | 0.05% | +9.1% |
| Q1 2017 | $2,809,000 | +47.3% | 30,900 | 0.0% | 0.04% | +33.3% |
| Q4 2016 | $1,907,000 | +15.3% | 30,900 | +26.6% | 0.03% | +13.8% |
| Q3 2016 | $1,654,000 | -21.7% | 24,400 | -50.0% | 0.03% | -12.1% |
| Q2 2016 | $2,113,000 | +103.8% | 48,800 | +100.0% | 0.03% | +94.1% |
| Q1 2016 | $1,037,000 | -61.8% | 24,400 | -42.3% | 0.02% | -59.5% |
| Q4 2015 | $2,717,000 | +2415.7% | 42,300 | +957.5% | 0.04% | +2000.0% |
| Q3 2013 | $108,000 | – | 4,000 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Monashee Investment Management LLC | 125,000 | $13,131,000 | 5.55% |
| Cormorant Asset Management, LP | 275,000 | $28,889,000 | 4.79% |
| Eventide Asset Management | 569,700 | $59,847,000 | 3.73% |
| Crosspoint Capital Strategies, LLC | 28,937 | $3,040,000 | 2.66% |
| Casdin Capital, LLC | 65,000 | $6,828,000 | 2.53% |
| ARK Investment Management | 119,683 | $12,573,000 | 2.45% |
| RTW INVESTMENTS, LP | 104,383 | $10,965,000 | 2.31% |
| Taylor Wealth Management Partners | 38,368 | $4,031,000 | 1.82% |
| First Light Asset Management, LLC | 33,780 | $3,549,000 | 1.19% |
| Atika Capital Management LLC | 25,000 | $2,627,000 | 0.92% |