BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 219 filers reported holding BLUEBIRD BIO INC in Q1 2017. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q4 2016 | $450,000 | -32.2% | 7,300 | -25.5% | 0.25% | -61.8% |
Q3 2016 | $664,000 | +56.6% | 9,800 | 0.0% | 0.66% | +18.6% |
Q2 2016 | $424,000 | +4.7% | 9,800 | +55.6% | 0.56% | +123.2% |
Q4 2015 | $405,000 | -76.8% | 6,300 | -39.3% | 0.25% | -77.0% |
Q2 2015 | $1,746,000 | +37.7% | 10,371 | -1.2% | 1.09% | +28.4% |
Q1 2015 | $1,268,000 | +70.7% | 10,500 | +29.6% | 0.85% | +111.5% |
Q4 2014 | $743,000 | +89.1% | 8,100 | -26.1% | 0.40% | +43.9% |
Q3 2014 | $393,000 | +45.6% | 10,957 | +9.6% | 0.28% | +68.5% |
Q3 2013 | $270,000 | -58.0% | 10,000 | -61.2% | 0.16% | -63.9% |
Q2 2013 | $643,000 | – | 25,750 | – | 0.46% | – |
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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% |