BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 2 filers reported holding BLUEBIRD BIO INC in Q4 2023. The put-call ratio across all filers is - and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $699 | -7.7% | 230 | 0.0% | 0.00% | 0.0% |
| Q2 2023 | $757 | +3.6% | 230 | 0.0% | 0.00% | 0.0% |
| Q1 2023 | $731 | -54.1% | 230 | 0.0% | 0.00% | 0.0% |
| Q4 2022 | $1,592 | +59.2% | 230 | 0.0% | 0.00% | 0.0% |
| Q3 2022 | $1,000 | 0.0% | 230 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $1,000 | 0.0% | 230 | 0.0% | 0.00% | 0.0% |
| Q1 2022 | $1,000 | -50.0% | 230 | 0.0% | 0.00% | 0.0% |
| Q4 2021 | $2,000 | -50.0% | 230 | 0.0% | 0.00% | -66.7% |
| Q3 2021 | $4,000 | -42.9% | 230 | 0.0% | 0.00% | -40.0% |
| Q2 2021 | $7,000 | 0.0% | 230 | 0.0% | 0.01% | -16.7% |
| Q1 2021 | $7,000 | +40.0% | 230 | +100.0% | 0.01% | +50.0% |
| Q4 2020 | $5,000 | -16.7% | 115 | 0.0% | 0.00% | -20.0% |
| Q3 2020 | $6,000 | -14.3% | 115 | 0.0% | 0.01% | -37.5% |
| Q2 2020 | $7,000 | +40.0% | 115 | 0.0% | 0.01% | +33.3% |
| Q1 2020 | $5,000 | – | 115 | – | 0.01% | – |
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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% |