BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 294 filers reported holding BLUEBIRD BIO INC in Q3 2018. The put-call ratio across all filers is 0.85 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $76,000 | -48.3% | 7,700 | 0.0% | 0.00% | -100.0% |
| Q3 2021 | $147,000 | -40.2% | 7,700 | 0.0% | 0.00% | 0.0% |
| Q2 2021 | $246,000 | +35.9% | 7,700 | +567.2% | 0.00% | 0.0% |
| Q2 2018 | $181,000 | -90.5% | 1,154 | -89.7% | 0.00% | -87.5% |
| Q1 2018 | $1,912,000 | +7.4% | 11,200 | +12.0% | 0.01% | 0.0% |
| Q4 2017 | $1,781,000 | +45.7% | 10,000 | +12.4% | 0.01% | +60.0% |
| Q3 2017 | $1,222,000 | +57.3% | 8,900 | +20.3% | 0.01% | +66.7% |
| Q2 2017 | $777,000 | +45.0% | 7,400 | +25.4% | 0.00% | +50.0% |
| Q1 2017 | $536,000 | +106.9% | 5,900 | +40.5% | 0.00% | +100.0% |
| Q4 2016 | $259,000 | -8.8% | 4,200 | 0.0% | 0.00% | 0.0% |
| Q3 2016 | $284,000 | -82.7% | 4,200 | -69.1% | 0.00% | -85.7% |
| Q1 2015 | $1,642,000 | +25.2% | 13,600 | -4.9% | 0.01% | +16.7% |
| Q4 2014 | $1,312,000 | -17.3% | 14,300 | -67.6% | 0.01% | +50.0% |
| Q3 2014 | $1,586,000 | +1788.1% | 44,200 | +1325.8% | 0.00% | – |
| Q3 2013 | $84,000 | – | 3,100 | – | 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% |