BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 219 filers reported holding BLUEBIRD BIO INC in Q1 2017. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $450,000 | -32.2% | 7,300 | -25.5% | 0.25% | -61.8% |
| Q3 2016 | $664,000 | +56.6% | 9,800 | 0.0% | 0.66% | +18.6% |
| Q2 2016 | $424,000 | +4.7% | 9,800 | +55.6% | 0.56% | +123.2% |
| Q4 2015 | $405,000 | -76.8% | 6,300 | -39.3% | 0.25% | -77.0% |
| Q2 2015 | $1,746,000 | +37.7% | 10,371 | -1.2% | 1.09% | +28.4% |
| Q1 2015 | $1,268,000 | +70.7% | 10,500 | +29.6% | 0.85% | +111.5% |
| Q4 2014 | $743,000 | +89.1% | 8,100 | -26.1% | 0.40% | +43.9% |
| Q3 2014 | $393,000 | +45.6% | 10,957 | +9.6% | 0.28% | +68.5% |
| Q3 2013 | $270,000 | -58.0% | 10,000 | -61.2% | 0.16% | -63.9% |
| Q2 2013 | $643,000 | – | 25,750 | – | 0.46% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 6,335,528 | $40,104,000 | 4.92% |
| qPULA Trading Management LP | 14,344 | $91,000 | 0.80% |
| Frazier Life Sciences Management, L.P. | 1,440,757 | $9,120,000 | 0.70% |
| Ikarian Capital, LLC | 462,628 | $2,928,000 | 0.58% |
| Birchview Capital, LP | 98,000 | $620,000 | 0.44% |
| HealthCor Management, L.P. | 455,000 | $2,880,000 | 0.36% |
| Financial Advocates Investment Management | 45,071 | $3,538,000 | 0.29% |
| PDT Partners, LLC | 262,767 | $1,663,000 | 0.25% |
| Monaco Asset Management SAM | 80,000 | $506,000 | 0.19% |
| Summit X, LLC | 103,424 | $651,000 | 0.19% |