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 2018 | $292,000 | -7.0% | 2,000 | 0.0% | 0.02% | -11.1% |
| Q2 2018 | $314,000 | -61.7% | 2,000 | -58.3% | 0.02% | -57.1% |
| Q1 2018 | $820,000 | -75.1% | 4,800 | -74.1% | 0.04% | -72.2% |
| Q4 2017 | $3,295,000 | +3.0% | 18,500 | -20.6% | 0.15% | +7.1% |
| Q3 2017 | $3,200,000 | -9.7% | 23,300 | -40.3% | 0.14% | -21.7% |
| Q1 2017 | $3,545,000 | +7.4% | 39,000 | -27.1% | 0.18% | +16.1% |
| Q4 2016 | $3,301,000 | – | 53,500 | – | 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% |