BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 179 filers reported holding BLUEBIRD BIO INC in Q2 2016. The put-call ratio across all filers is 1.01 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $6,000 | -14.3% | 100 | 0.0% | 0.00% | – |
| Q3 2016 | $7,000 | -61.1% | 100 | -76.2% | 0.00% | -100.0% |
| Q2 2016 | $18,000 | 0.0% | 420 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $18,000 | -33.3% | 420 | 0.0% | 0.00% | 0.0% |
| Q4 2015 | $27,000 | +200.0% | 420 | +320.0% | 0.00% | 0.0% |
| Q3 2015 | $9,000 | -87.7% | 100 | -87.4% | 0.00% | -87.5% |
| Q4 2014 | $73,000 | +102.8% | 792 | -20.8% | 0.01% | +100.0% |
| Q3 2014 | $36,000 | – | 1,000 | – | 0.00% | – |
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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% |