BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 314 filers reported holding BLUEBIRD BIO INC in Q2 2018. The put-call ratio across all filers is 0.60 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $10,950,000 | -33.6% | 75,000 | -28.6% | 2.33% | -52.0% |
| Q2 2018 | $16,480,000 | +790.3% | 105,000 | +250.0% | 4.85% | +989.9% |
| Q4 2016 | $1,851,000 | -54.5% | 30,000 | -50.0% | 0.44% | -32.6% |
| Q3 2016 | $4,067,000 | -44.7% | 60,000 | -64.7% | 0.66% | -68.9% |
| Q2 2016 | $7,359,000 | -4.5% | 170,000 | +41.7% | 2.12% | -32.6% |
| Q4 2015 | $7,706,000 | +6.3% | 120,000 | +100.0% | 3.16% | +142.1% |
| Q1 2015 | $7,246,000 | +163.3% | 60,000 | +100.0% | 1.30% | -1.4% |
| Q4 2014 | $2,752,000 | +119.1% | 30,000 | -14.3% | 1.32% | +93.7% |
| Q3 2014 | $1,256,000 | – | 35,000 | – | 0.68% | – |
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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% |