BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 251 filers reported holding BLUEBIRD BIO INC in Q3 2019. The put-call ratio across all filers is 1.49 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $0 | -100.0% | 16 | -42.9% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 28 | 0.0% | 0.00% | – |
| Q1 2021 | $1,000 | 0.0% | 28 | 0.0% | 0.00% | – |
| Q4 2020 | $1,000 | -50.0% | 28 | 0.0% | 0.00% | – |
| Q3 2020 | $2,000 | -50.0% | 28 | -55.6% | 0.00% | – |
| Q2 2020 | $4,000 | -50.0% | 63 | -62.3% | 0.00% | -100.0% |
| Q1 2020 | $8,000 | +33.3% | 167 | +135.2% | 0.00% | – |
| Q4 2019 | $6,000 | 0.0% | 71 | +7.6% | 0.00% | – |
| Q3 2019 | $6,000 | +20.0% | 66 | +65.0% | 0.00% | – |
| Q2 2019 | $5,000 | -100.0% | 40 | -80.9% | 0.00% | -100.0% |
| Q2 2018 | $32,803,000 | +36757.3% | 209 | -60.1% | 0.00% | -62.5% |
| Q1 2018 | $89,000 | -21.9% | 524 | -18.3% | 0.01% | -20.0% |
| Q4 2017 | $114,000 | +2750.0% | 641 | +2110.3% | 0.01% | – |
| Q3 2017 | $4,000 | +33.3% | 29 | -3.3% | 0.00% | – |
| Q2 2017 | $3,000 | -99.9% | 30 | -99.8% | 0.00% | -100.0% |
| Q2 2015 | $2,171,000 | – | 12,899 | – | 0.22% | – |
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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% |