BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 314 filers reported holding BLUEBIRD BIO INC in Q2 2018. The put-call ratio across all filers is 0.60 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $3,071,000 | -28.8% | 35,000 | -25.5% | 0.10% | -43.6% |
| Q3 2019 | $4,316,000 | -27.8% | 47,000 | 0.0% | 0.17% | -20.4% |
| Q2 2019 | $5,978,000 | -15.6% | 47,000 | +4.4% | 0.22% | -20.9% |
| Q1 2019 | $7,080,000 | +58.6% | 45,000 | 0.0% | 0.27% | +29.4% |
| Q4 2018 | $4,464,000 | -41.8% | 45,000 | -14.3% | 0.21% | -24.1% |
| Q3 2018 | $7,665,000 | +8.5% | 52,500 | +16.7% | 0.28% | +2.2% |
| Q2 2018 | $7,063,000 | -8.1% | 45,000 | 0.0% | 0.27% | -17.1% |
| Q1 2018 | $7,684,000 | -4.1% | 45,000 | 0.0% | 0.33% | -9.9% |
| Q4 2017 | $8,015,000 | +66.7% | 45,000 | +28.6% | 0.36% | +64.0% |
| Q3 2017 | $4,807,000 | +43.0% | 35,000 | +9.4% | 0.22% | +30.6% |
| Q2 2017 | $3,362,000 | +21.3% | 32,000 | +4.9% | 0.17% | +6.2% |
| Q1 2017 | $2,772,000 | +57.7% | 30,500 | +7.0% | 0.16% | +35.6% |
| Q4 2016 | $1,758,000 | +29.6% | 28,500 | +42.5% | 0.12% | +38.8% |
| Q3 2016 | $1,356,000 | +56.6% | 20,000 | 0.0% | 0.08% | +32.8% |
| Q2 2016 | $866,000 | +1.9% | 20,000 | 0.0% | 0.06% | -9.9% |
| Q1 2016 | $850,000 | -33.8% | 20,000 | 0.0% | 0.07% | -26.8% |
| Q4 2015 | $1,284,000 | -66.6% | 20,000 | -55.6% | 0.10% | -69.0% |
| Q3 2015 | $3,850,000 | -49.2% | 45,000 | 0.0% | 0.31% | -43.4% |
| Q2 2015 | $7,577,000 | +151.0% | 45,000 | +80.0% | 0.55% | +96.1% |
| Q1 2015 | $3,019,000 | +31.7% | 25,000 | 0.0% | 0.28% | +5.2% |
| Q4 2014 | $2,293,000 | – | 25,000 | – | 0.27% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 6,335,528 | $40,104,000 | 4.92% |
| qPULA Trading Management LP | 14,344 | $91,000 | 0.80% |
| Frazier Life Sciences Management, L.P. | 1,440,757 | $9,120,000 | 0.70% |
| Ikarian Capital, LLC | 462,628 | $2,928,000 | 0.58% |
| Birchview Capital, LP | 98,000 | $620,000 | 0.44% |
| HealthCor Management, L.P. | 455,000 | $2,880,000 | 0.36% |
| Financial Advocates Investment Management | 45,071 | $3,538,000 | 0.29% |
| PDT Partners, LLC | 262,767 | $1,663,000 | 0.25% |
| Monaco Asset Management SAM | 80,000 | $506,000 | 0.19% |
| Summit X, LLC | 103,424 | $651,000 | 0.19% |