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 | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $1,051,000 | +7.9% | 7,199 | +16.0% | 0.00% | 0.0% |
| Q2 2018 | $974,000 | +20.5% | 6,208 | +31.2% | 0.00% | 0.0% |
| Q1 2018 | $808,000 | -95.7% | 4,730 | -95.6% | 0.00% | -95.5% |
| Q4 2017 | $18,943,000 | +2878.5% | 106,361 | +932.6% | 0.02% | +2100.0% |
| Q4 2016 | $636,000 | -26.7% | 10,300 | -19.5% | 0.00% | 0.0% |
| Q3 2016 | $868,000 | +132.1% | 12,800 | +45.5% | 0.00% | 0.0% |
| Q1 2016 | $374,000 | -64.2% | 8,800 | +41.9% | 0.00% | 0.0% |
| Q2 2015 | $1,044,000 | +83.8% | 6,200 | +31.9% | 0.00% | 0.0% |
| Q1 2015 | $568,000 | 0.0% | 4,700 | -24.2% | 0.00% | 0.0% |
| Q4 2014 | $568,000 | – | 6,200 | – | 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% |