BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 294 filers reported holding BLUEBIRD BIO INC in Q3 2018. The put-call ratio across all filers is 0.85 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $76,000 | -48.3% | 7,700 | 0.0% | 0.00% | -100.0% |
| Q3 2021 | $147,000 | -40.2% | 7,700 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $246,000 | +35.9% | 7,700 | +567.2% | 0.00% | 0.0% |
| Q2 2018 | $181,000 | -90.5% | 1,154 | -89.7% | 0.00% | -87.5% |
| Q1 2018 | $1,912,000 | +7.4% | 11,200 | +12.0% | 0.01% | 0.0% |
| Q4 2017 | $1,781,000 | +45.7% | 10,000 | +12.4% | 0.01% | +60.0% |
| Q3 2017 | $1,222,000 | +57.3% | 8,900 | +20.3% | 0.01% | +66.7% |
| Q2 2017 | $777,000 | +45.0% | 7,400 | +25.4% | 0.00% | +50.0% |
| Q1 2017 | $536,000 | +106.9% | 5,900 | +40.5% | 0.00% | +100.0% |
| Q4 2016 | $259,000 | -8.8% | 4,200 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $284,000 | -82.7% | 4,200 | -69.1% | 0.00% | -85.7% |
| Q1 2015 | $1,642,000 | +25.2% | 13,600 | -4.9% | 0.01% | +16.7% |
| Q4 2014 | $1,312,000 | -17.3% | 14,300 | -67.6% | 0.01% | +50.0% |
| Q3 2014 | $1,586,000 | +1788.1% | 44,200 | +1325.8% | 0.00% | – |
| Q3 2013 | $84,000 | – | 3,100 | – | 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% |