BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 255 filers reported holding BLUEBIRD BIO INC in Q4 2018. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
Value | Shares | Weighting | ||||
---|---|---|---|---|---|---|
Q2 2019 | $290,000 | -39.6% | 2,282 | -25.2% | 0.03% | -44.2% |
Q1 2019 | $480,000 | +115.2% | 3,051 | +35.6% | 0.05% | +79.3% |
Q4 2018 | $223,000 | -21.8% | 2,250 | +15.4% | 0.03% | -9.4% |
Q3 2018 | $285,000 | -9.5% | 1,950 | -3.0% | 0.03% | -17.9% |
Q2 2018 | $315,000 | -19.8% | 2,010 | -12.6% | 0.04% | -23.5% |
Q1 2018 | $393,000 | -32.1% | 2,300 | -29.2% | 0.05% | -28.2% |
Q4 2017 | $579,000 | +18.6% | 3,250 | -8.5% | 0.07% | +12.7% |
Q3 2017 | $488,000 | +16.7% | 3,550 | -10.7% | 0.06% | +16.7% |
Q2 2017 | $418,000 | +8.3% | 3,975 | -6.5% | 0.05% | +3.8% |
Q1 2017 | $386,000 | +26.6% | 4,250 | -14.1% | 0.05% | +15.6% |
Q4 2016 | $305,000 | -6.2% | 4,950 | +3.1% | 0.04% | -6.2% |
Q3 2016 | $325,000 | +51.9% | 4,800 | -3.0% | 0.05% | +37.1% |
Q2 2016 | $214,000 | +0.5% | 4,950 | -1.0% | 0.04% | -5.4% |
Q1 2016 | $213,000 | -30.2% | 5,000 | +5.3% | 0.04% | -32.7% |
Q4 2015 | $305,000 | -19.9% | 4,750 | +6.7% | 0.06% | -28.6% |
Q3 2015 | $381,000 | -43.2% | 4,450 | +11.7% | 0.08% | -37.9% |
Q2 2015 | $671,000 | +14.5% | 3,985 | -17.8% | 0.12% | +24.0% |
Q1 2015 | $586,000 | +22.3% | 4,850 | -7.2% | 0.10% | +35.1% |
Q4 2014 | $479,000 | +95.5% | 5,225 | -17.7% | 0.07% | +89.7% |
Q2 2014 | $245,000 | – | 6,350 | – | 0.04% | – |
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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% |