BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 303 filers reported holding BLUEBIRD BIO INC in Q4 2017. The put-call ratio across all filers is 0.85 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $74,231 | -44.2% | 23,343 | +11.5% | 0.02% | -53.8% |
| Q3 2022 | $133,000 | -57.8% | 20,940 | +112.7% | 0.05% | -81.9% |
| Q2 2021 | $315,000 | -31.8% | 9,846 | +87.0% | 0.29% | -22.8% |
| Q4 2019 | $462,000 | +97.4% | 5,265 | +106.9% | 0.37% | +74.6% |
| Q3 2019 | $234,000 | -74.2% | 2,545 | -56.0% | 0.21% | -26.0% |
| Q2 2018 | $908,000 | +50.3% | 5,783 | +31.4% | 0.29% | +68.4% |
| Q3 2017 | $604,000 | -33.1% | 4,400 | -48.8% | 0.17% | -45.2% |
| Q2 2017 | $903,000 | +150.1% | 8,600 | +1.2% | 0.31% | +29.5% |
| Q1 2016 | $361,000 | – | 8,500 | – | 0.24% | – |
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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% |