BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 247 filers reported holding BLUEBIRD BIO INC in Q2 2017. The put-call ratio across all filers is 0.48 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $208,000 | -44.2% | 6,501 | -24.5% | 0.00% | – |
| Q4 2020 | $373,000 | -70.1% | 8,609 | -62.8% | 0.00% | -100.0% |
| Q3 2020 | $1,249,000 | +8.5% | 23,160 | +22.8% | 0.00% | 0.0% |
| Q2 2020 | $1,151,000 | +102.6% | 18,860 | +52.7% | 0.00% | 0.0% |
| Q1 2020 | $568,000 | -20.2% | 12,355 | +52.3% | 0.00% | 0.0% |
| Q4 2019 | $712,000 | -31.7% | 8,113 | -28.5% | 0.00% | 0.0% |
| Q3 2019 | $1,042,000 | -20.3% | 11,351 | +10.4% | 0.00% | -50.0% |
| Q2 2019 | $1,308,000 | -11.3% | 10,281 | +9.8% | 0.00% | 0.0% |
| Q1 2019 | $1,474,000 | +64.0% | 9,366 | +3.3% | 0.00% | +100.0% |
| Q4 2018 | $899,000 | +1373.8% | 9,063 | +2241.9% | 0.00% | – |
| Q2 2018 | $61,000 | -4.7% | 387 | +2.7% | 0.00% | – |
| Q1 2018 | $64,000 | -1.5% | 377 | +2.7% | 0.00% | – |
| Q4 2017 | $65,000 | +44.4% | 367 | +13.6% | 0.00% | – |
| Q3 2017 | $45,000 | +309.1% | 323 | +201.9% | 0.00% | – |
| Q2 2017 | $11,000 | +10.0% | 107 | -7.8% | 0.00% | – |
| Q1 2017 | $10,000 | – | 116 | – | 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% |