BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 211 filers reported holding BLUEBIRD BIO INC in Q4 2016. The put-call ratio across all filers is 0.81 and the average weighting 0.1%.
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 ↓ |
---|---|---|---|
Third Rock Ventures, LLC | 3,313,974 | $78,939,000 | 22.36% |
HARBOURVEST PARTNERS LLC | 59,264 | $1,243,000 | 3.98% |
RA Capital Management | 467,418 | $9,806,000 | 1.14% |
HAMILTON LANE ADVISORS LLC | 88,628 | $1,859,000 | 1.08% |
COWEN INC. | 158,709 | $3,330,000 | 0.56% |
SPHERA FUNDS MANAGEMENT LTD. | 92,435 | $1,939,000 | 0.54% |
DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 423,224 | $8,879,000 | 0.46% |
Camber Capital Management LP | 206,900 | $4,341,000 | 0.38% |
Eventide Asset Management | 25,700 | $539,000 | 0.17% |
SABBY MANAGEMENT, LLC | 102,035 | $2,141,000 | 0.14% |