BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 249 filers reported holding BLUEBIRD BIO INC in Q3 2017. The put-call ratio across all filers is 0.94 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $1,978,000 | -38.6% | 11,587 | -35.9% | 0.33% | -43.0% |
| Q4 2017 | $3,220,000 | +28.0% | 18,079 | -1.3% | 0.58% | +72.8% |
| Q3 2017 | $2,515,000 | -10.4% | 18,311 | -55.8% | 0.33% | -11.4% |
| Q3 2016 | $2,806,000 | -18.7% | 41,405 | +102.0% | 0.38% | -6.7% |
| Q2 2015 | $3,451,000 | -34.6% | 20,498 | -53.1% | 0.40% | -33.8% |
| Q1 2015 | $5,279,000 | -6.5% | 43,709 | -29.0% | 0.61% | -22.6% |
| Q4 2014 | $5,648,000 | +435.4% | 61,579 | +109.5% | 0.79% | +268.2% |
| Q3 2014 | $1,055,000 | +21.5% | 29,396 | +30.6% | 0.21% | +29.7% |
| Q2 2014 | $868,000 | – | 22,509 | – | 0.16% | – |
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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% |