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 | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $0 | – | 25 | 0.0% | 0.00% | – |
| Q3 2021 | $0 | -100.0% | 25 | 0.0% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q1 2021 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q4 2020 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q3 2020 | $1,000 | 0.0% | 25 | +56.2% | 0.00% | – |
| Q1 2020 | $1,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q3 2019 | $1,000 | -50.0% | 16 | 0.0% | 0.00% | – |
| Q2 2019 | $2,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q4 2018 | $2,000 | 0.0% | 16 | 0.0% | 0.00% | -100.0% |
| Q3 2017 | $2,000 | -100.0% | 16 | -94.9% | 0.00% | -66.7% |
| Q4 2016 | $19,000,000 | +126566.7% | 316 | +46.3% | 0.00% | 0.0% |
| Q3 2016 | $15,000 | +400.0% | 216 | +260.0% | 0.00% | +200.0% |
| Q4 2015 | $3,000 | -25.0% | 60 | +9.1% | 0.00% | 0.0% |
| Q3 2015 | $4,000 | -90.5% | 55 | -78.4% | 0.00% | -92.9% |
| Q2 2015 | $42,000 | +75.0% | 255 | +27.5% | 0.01% | +75.0% |
| Q1 2015 | $24,000 | +33.3% | 200 | 0.0% | 0.01% | +33.3% |
| Q4 2014 | $18,000 | +157.1% | 200 | 0.0% | 0.01% | +500.0% |
| Q3 2014 | $7,000 | 0.0% | 200 | 0.0% | 0.00% | -75.0% |
| Q2 2014 | $7,000 | – | 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% |