BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 255 filers reported holding BLUEBIRD BIO INC in Q4 2018. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $525,000 | -30.3% | 17,400 | 0.0% | 0.05% | -34.1% |
| Q4 2020 | $753,000 | -35.4% | 17,400 | -19.4% | 0.08% | -43.4% |
| Q3 2020 | $1,165,000 | -12.9% | 21,600 | -1.4% | 0.14% | -23.7% |
| Q2 2020 | $1,337,000 | +32.8% | 21,900 | 0.0% | 0.19% | +10.5% |
| Q1 2020 | $1,007,000 | -34.1% | 21,900 | +25.9% | 0.17% | -26.2% |
| Q4 2019 | $1,527,000 | -4.4% | 17,400 | 0.0% | 0.23% | -12.4% |
| Q3 2019 | $1,598,000 | -21.5% | 17,400 | +8.8% | 0.27% | -25.1% |
| Q2 2019 | $2,035,000 | -19.1% | 16,000 | 0.0% | 0.36% | -24.0% |
| Q1 2019 | $2,517,000 | +58.6% | 16,000 | 0.0% | 0.47% | +45.5% |
| Q4 2018 | $1,587,000 | -32.1% | 16,000 | 0.0% | 0.32% | -21.7% |
| Q3 2018 | $2,336,000 | -5.8% | 16,000 | +1.3% | 0.41% | -9.7% |
| Q2 2018 | $2,480,000 | +41.0% | 15,800 | +53.4% | 0.45% | +46.5% |
| Q1 2018 | $1,759,000 | – | 10,300 | – | 0.31% | – |
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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% |