BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 303 filers reported holding BLUEBIRD BIO INC in Q4 2017. The put-call ratio across all filers is 0.85 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $3,691,000 | -73.2% | 40,200 | -62.9% | 0.08% | -76.7% |
| Q2 2019 | $13,781,000 | -43.7% | 108,341 | -30.3% | 0.35% | -50.4% |
| Q1 2019 | $24,466,000 | +25.2% | 155,508 | -21.0% | 0.70% | -11.9% |
| Q4 2018 | $19,536,000 | -66.6% | 196,938 | -50.8% | 0.79% | -55.1% |
| Q3 2018 | $58,494,000 | +41.5% | 400,644 | +52.2% | 1.77% | +16.7% |
| Q2 2018 | $41,328,000 | +22.6% | 263,321 | +33.4% | 1.51% | -9.6% |
| Q1 2018 | $33,706,000 | +55.8% | 197,399 | +62.5% | 1.67% | -2.8% |
| Q4 2017 | $21,632,000 | +72.1% | 121,462 | +1.5% | 1.72% | -29.6% |
| Q2 2017 | $12,573,000 | +67.3% | 119,683 | +44.8% | 2.45% | +13.0% |
| Q1 2017 | $7,514,000 | +61.0% | 82,662 | +9.3% | 2.17% | +27.6% |
| Q4 2016 | $4,667,000 | – | 75,645 | – | 1.70% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 145,000 | $25,825,000 | 6.29% |
| Monashee Investment Management LLC | 37,500 | $6,679,000 | 2.83% |
| Eventide Asset Management | 277,603 | $49,441,000 | 2.58% |
| Redmile Group, LLC | 259,800 | $46,270,000 | 2.01% |
| MayTech Global Investments, LLC | 16,477 | $2,935,000 | 1.93% |
| First Light Asset Management, LLC | 37,838 | $6,739,000 | 1.85% |
| Atika Capital Management LLC | 26,500 | $4,720,000 | 1.82% |
| Taylor Wealth Management Partners | 22,993 | $4,095,000 | 1.74% |
| ARK Investment Management | 121,462 | $21,632,000 | 1.72% |
| Cormorant Asset Management, LP | 80,000 | $14,248,000 | 1.49% |