BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 172 filers reported holding BLUEBIRD BIO INC in Q4 2014. The put-call ratio across all filers is 0.23 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $36,807,000 | -12.7% | 252,100 | -6.1% | 1.13% | -20.9% |
| Q2 2018 | $42,141,000 | -7.6% | 268,500 | +0.5% | 1.43% | -18.7% |
| Q1 2018 | $45,607,000 | -1.4% | 267,100 | +2.8% | 1.76% | -12.5% |
| Q4 2017 | $46,270,000 | +393.5% | 259,800 | +154.1% | 2.01% | +97.1% |
| Q4 2014 | $9,376,000 | – | 102,227 | – | 1.02% | – |
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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% |