BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 255 filers reported holding BLUEBIRD BIO INC in Q4 2018. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2019 | $2,000 | -33.3% | 20 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $3,000 | 0.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $3,000 | +50.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $2,000 | -33.3% | 20 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $3,000 | 0.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $3,000 | 0.0% | 20 | 0.0% | 0.00% | -50.0% |
| Q1 2018 | $3,000 | 0.0% | 20 | 0.0% | 0.00% | +100.0% |
| Q4 2017 | $3,000 | +50.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $2,000 | 0.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $2,000 | +100.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $1,000 | 0.0% | 20 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $1,000 | – | 20 | – | 0.00% | – |
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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% |