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 | ||||
|---|---|---|---|---|---|---|
| Q1 2019 | $220,000 | +8.9% | 1,400 | +8.5% | 0.00% | 0.0% |
| Q2 2018 | $202,000 | -4.7% | 1,290 | +4.0% | 0.00% | 0.0% |
| Q1 2018 | $212,000 | -0.9% | 1,240 | +3.3% | 0.00% | 0.0% |
| Q4 2017 | $214,000 | +94.5% | 1,200 | +14.3% | 0.00% | +100.0% |
| Q2 2017 | $110,000 | +15.8% | 1,050 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $95,000 | +35.7% | 1,050 | -8.7% | 0.00% | 0.0% |
| Q4 2016 | $70,000 | +14.8% | 1,150 | +27.8% | 0.00% | 0.0% |
| Q3 2016 | $61,000 | +60.5% | 900 | 0.0% | 0.00% | +100.0% |
| Q2 2016 | $38,000 | 0.0% | 900 | 0.0% | 0.00% | 0.0% |
| Q1 2016 | $38,000 | -13.6% | 900 | +28.6% | 0.00% | 0.0% |
| Q4 2015 | $44,000 | +158.8% | 700 | +250.0% | 0.00% | 0.0% |
| Q3 2015 | $17,000 | – | 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% |