BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 173 filers reported holding BLUEBIRD BIO INC in Q2 2023. The put-call ratio across all filers is 2.47 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $2,328,774 | -38.7% | 732,319 | +33.4% | 0.01% | -50.0% |
| Q4 2022 | $3,797,558 | +126.3% | 548,780 | +35.4% | 0.02% | +66.7% |
| Q2 2022 | $1,678,000 | +165.5% | 405,319 | +211.1% | 0.01% | +140.0% |
| Q1 2022 | $632,000 | -78.3% | 130,304 | +93.2% | 0.01% | -88.1% |
| Q4 2020 | $2,919,000 | +164.4% | 67,455 | +229.7% | 0.04% | +162.5% |
| Q3 2020 | $1,104,000 | -9.2% | 20,457 | +2.7% | 0.02% | -11.1% |
| Q2 2020 | $1,216,000 | +38.5% | 19,914 | +4.3% | 0.02% | -50.0% |
| Q1 2020 | $878,000 | +322.1% | 19,097 | +706.5% | 0.04% | +414.3% |
| Q4 2019 | $208,000 | – | 2,368 | – | 0.01% | – |
Download | ||||||
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% |