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 | $273,000 | -19.7% | 6,300 | 0.0% | 0.00% | – |
| Q3 2020 | $340,000 | +39.3% | 6,300 | +57.5% | 0.00% | – |
| Q2 2020 | $244,000 | -97.4% | 4,000 | -98.1% | 0.00% | -100.0% |
| Q1 2020 | $9,497,000 | -28.7% | 206,614 | +36.2% | 0.02% | +6.2% |
| Q4 2019 | $13,315,000 | +20.3% | 151,732 | +25.9% | 0.02% | -5.9% |
| Q3 2019 | $11,068,000 | -16.6% | 120,545 | +15.6% | 0.02% | +54.5% |
| Q2 2019 | $13,264,000 | -9.3% | 104,274 | +12.2% | 0.01% | -47.6% |
| Q1 2019 | $14,623,000 | +33.0% | 92,941 | -16.1% | 0.02% | +110.0% |
| Q4 2018 | $10,991,000 | -21.7% | 110,800 | +15.3% | 0.01% | -44.4% |
| Q3 2018 | $14,031,000 | +10.0% | 96,100 | +18.2% | 0.02% | 0.0% |
| Q2 2018 | $12,760,000 | +55.7% | 81,300 | +69.4% | 0.02% | +38.5% |
| Q1 2018 | $8,196,000 | – | 48,000 | – | 0.01% | – |
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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% |