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 | ||||
|---|---|---|---|---|---|---|
| Q2 2019 | $4,579,000 | -90.1% | 36,000 | -87.8% | 0.14% | -91.3% |
| Q1 2019 | $46,355,000 | +68.3% | 294,638 | +6.1% | 1.60% | +30.8% |
| Q4 2018 | $27,538,000 | -32.1% | 277,603 | 0.0% | 1.22% | -18.1% |
| Q3 2018 | $40,530,000 | -7.0% | 277,603 | 0.0% | 1.49% | -17.7% |
| Q2 2018 | $43,570,000 | -8.1% | 277,603 | 0.0% | 1.81% | -18.5% |
| Q1 2018 | $47,401,000 | -4.1% | 277,603 | 0.0% | 2.22% | -13.9% |
| Q4 2017 | $49,441,000 | -12.6% | 277,603 | -32.6% | 2.58% | -19.6% |
| Q3 2017 | $56,588,000 | -5.4% | 412,000 | -27.7% | 3.21% | -13.9% |
| Q2 2017 | $59,847,000 | +15.6% | 569,700 | 0.0% | 3.73% | +8.7% |
| Q1 2017 | $51,786,000 | +42.8% | 569,700 | -3.1% | 3.43% | +45.3% |
| Q4 2016 | $36,260,000 | -0.8% | 587,677 | +8.9% | 2.36% | +5.7% |
| Q3 2016 | $36,567,000 | +56.6% | 539,500 | 0.0% | 2.23% | +56.2% |
| Q2 2016 | $23,355,000 | +1.9% | 539,500 | 0.0% | 1.43% | +11.6% |
| Q1 2016 | $22,929,000 | -33.8% | 539,500 | 0.0% | 1.28% | -26.0% |
| Q4 2015 | $34,647,000 | -3.5% | 539,500 | +28.6% | 1.73% | -17.0% |
| Q3 2015 | $35,897,000 | -47.1% | 419,600 | +4.2% | 2.09% | -43.2% |
| Q2 2015 | $67,819,000 | +39.4% | 402,800 | 0.0% | 3.67% | +0.3% |
| Q1 2015 | $48,646,000 | +36.0% | 402,800 | +3.3% | 3.66% | -6.2% |
| Q4 2014 | $35,771,000 | +151.9% | 390,000 | -1.4% | 3.90% | +97.0% |
| Q3 2014 | $14,198,000 | +378.7% | 395,700 | +414.6% | 1.98% | +391.8% |
| Q2 2014 | $2,966,000 | +100.7% | 76,900 | +18.3% | 0.40% | +76.0% |
| Q1 2014 | $1,478,000 | +174.2% | 65,000 | +152.9% | 0.23% | +38.0% |
| Q4 2013 | $539,000 | – | 25,700 | – | 0.17% | – |
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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% |