BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 306 filers reported holding BLUEBIRD BIO INC in Q1 2018. The put-call ratio across all filers is 0.94 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,541 | -5.4% | 507 | +2.4% | 0.00% | – |
| Q2 2023 | $1,629 | +62.6% | 495 | +57.1% | 0.00% | – |
| Q1 2023 | $1,002 | -66.9% | 315 | -27.9% | 0.00% | – |
| Q4 2022 | $3,024 | +51.2% | 437 | +50.7% | 0.00% | – |
| Q3 2022 | $2,000 | +100.0% | 290 | +12.4% | 0.00% | – |
| Q1 2022 | $1,000 | -66.7% | 258 | +2.8% | 0.00% | – |
| Q4 2021 | $3,000 | -40.0% | 251 | 0.0% | 0.00% | – |
| Q3 2021 | $5,000 | -89.4% | 251 | -83.1% | 0.00% | -100.0% |
| Q2 2021 | $47,000 | +9.3% | 1,485 | +3.2% | 0.00% | 0.0% |
| Q1 2021 | $43,000 | -30.6% | 1,439 | +0.8% | 0.00% | -33.3% |
| Q4 2020 | $62,000 | +785.7% | 1,428 | +1080.2% | 0.00% | – |
| Q3 2020 | $7,000 | +40.0% | 121 | +39.1% | 0.00% | – |
| Q2 2020 | $5,000 | +400.0% | 87 | +569.2% | 0.00% | – |
| Q1 2020 | $1,000 | -75.0% | 13 | -74.5% | 0.00% | – |
| Q4 2019 | $4,000 | -98.6% | 51 | -96.9% | 0.00% | -100.0% |
| Q4 2017 | $294,000 | – | 1,653 | – | 0.04% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| AlpInvest Partners B.V. | 46,264 | $3,958,000 | 7.80% |
| RTW INVESTMENTS, LP | 151,594 | $12,969,000 | 4.03% |
| APIS CAPITAL ADVISORS, LLC | 30,870 | $2,640,000 | 3.65% |
| Parametrica Management Ltd | 4,084 | $349,000 | 2.20% |
| Eventide Asset Management | 419,600 | $35,897,000 | 2.09% |
| RA Capital Management | 167,367 | $14,318,000 | 2.06% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 483,000 | $41,321,000 | 1.60% |
| Taylor Wealth Management Partners | 38,184 | $3,267,000 | 1.58% |
| Orbimed Advisors | 1,188,900 | $101,710,000 | 1.03% |
| CABOT WEALTH MANAGEMENT INC | 34,195 | $2,925,000 | 0.81% |