BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 194 filers reported holding BLUEBIRD BIO INC in Q3 2015. The put-call ratio across all filers is 1.12 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $1,978,000 | -38.6% | 11,587 | -35.9% | 0.33% | -43.0% |
| Q4 2017 | $3,220,000 | +28.0% | 18,079 | -1.3% | 0.58% | +72.8% |
| Q3 2017 | $2,515,000 | -10.4% | 18,311 | -55.8% | 0.33% | -11.4% |
| Q3 2016 | $2,806,000 | -18.7% | 41,405 | +102.0% | 0.38% | -6.7% |
| Q2 2015 | $3,451,000 | -34.6% | 20,498 | -53.1% | 0.40% | -33.8% |
| Q1 2015 | $5,279,000 | -6.5% | 43,709 | -29.0% | 0.61% | -22.6% |
| Q4 2014 | $5,648,000 | +435.4% | 61,579 | +109.5% | 0.79% | +268.2% |
| Q3 2014 | $1,055,000 | +21.5% | 29,396 | +30.6% | 0.21% | +29.7% |
| Q2 2014 | $868,000 | – | 22,509 | – | 0.16% | – |
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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% |