BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 104 filers reported holding BLUEBIRD BIO INC in Q2 2014. The put-call ratio across all filers is 0.58 and the average weighting 0.3%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2016 | $203,000 | -42.5% | 4,774 | -12.3% | 0.00% | -100.0% |
| Q4 2015 | $353,000 | -40.4% | 5,443 | -21.4% | 0.00% | 0.0% |
| Q3 2015 | $592,000 | -78.4% | 6,924 | -57.4% | 0.00% | -75.0% |
| Q2 2015 | $2,739,000 | -8.3% | 16,266 | -34.2% | 0.00% | -20.0% |
| Q1 2015 | $2,986,000 | -24.2% | 24,716 | -41.8% | 0.01% | -28.6% |
| Q4 2014 | $3,938,000 | +353.7% | 42,440 | +75.5% | 0.01% | +250.0% |
| Q3 2014 | $868,000 | +23.3% | 24,187 | +32.5% | 0.00% | +100.0% |
| Q2 2014 | $704,000 | – | 18,248 | – | 0.00% | – |
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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% |