BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 296 filers reported holding BLUEBIRD BIO INC in Q1 2019. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $82,000 | -93.1% | 830 | -89.8% | 0.00% | -93.3% |
| Q3 2018 | $1,189,000 | -65.0% | 8,144 | -62.3% | 0.03% | -67.0% |
| Q2 2018 | $3,394,000 | +33.2% | 21,625 | +44.8% | 0.09% | +26.4% |
| Q1 2018 | $2,549,000 | -28.0% | 14,931 | -24.9% | 0.07% | -25.8% |
| Q4 2017 | $3,539,000 | +29.2% | 19,875 | -0.3% | 0.10% | +21.2% |
| Q3 2017 | $2,739,000 | +22.8% | 19,938 | -6.1% | 0.08% | +14.3% |
| Q2 2017 | $2,230,000 | +16.4% | 21,225 | +0.7% | 0.07% | +16.7% |
| Q1 2017 | $1,916,000 | +51.6% | 21,075 | +2.9% | 0.06% | +42.9% |
| Q4 2016 | $1,264,000 | +242.5% | 20,487 | +276.5% | 0.04% | +250.0% |
| Q3 2016 | $369,000 | -62.3% | 5,442 | -64.3% | 0.01% | -65.7% |
| Q4 2015 | $979,000 | – | 15,242 | – | 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% |