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 | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $2,752,940 | +4709.5% | 836,760 | +4548.7% | 0.01% | +900.0% |
| Q1 2023 | $57,240 | -85.7% | 18,000 | -71.6% | 0.00% | -87.5% |
| Q3 2022 | $401,000 | -36.2% | 63,296 | -51.2% | 0.01% | -52.9% |
| Q1 2022 | $629,000 | +522.8% | 129,729 | +1185.6% | 0.02% | +466.7% |
| Q4 2021 | $101,000 | -86.2% | 10,091 | -73.6% | 0.00% | -85.7% |
| Q3 2021 | $731,000 | +168.8% | 38,247 | +350.4% | 0.02% | +133.3% |
| Q2 2021 | $272,000 | -40.4% | 8,492 | +63.3% | 0.01% | -69.0% |
| Q4 2019 | $456,000 | -84.9% | 5,200 | -84.2% | 0.03% | -83.9% |
| Q3 2019 | $3,019,000 | +208.4% | 32,867 | +326.8% | 0.18% | +68.2% |
| Q2 2019 | $979,000 | -49.8% | 7,700 | -37.9% | 0.11% | -66.7% |
| Q1 2019 | $1,951,000 | – | 12,400 | – | 0.32% | – |
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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% |