BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 251 filers reported holding BLUEBIRD BIO INC in Q3 2019. The put-call ratio across all filers is 1.49 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $202,000 | -30.1% | 6,690 | 0.0% | 0.03% | -26.2% |
| Q4 2020 | $289,000 | -46.9% | 6,690 | -33.6% | 0.04% | -53.3% |
| Q3 2020 | $544,000 | +112.5% | 10,079 | +401.4% | 0.09% | +60.7% |
| Q2 2019 | $256,000 | -26.9% | 2,010 | -9.9% | 0.06% | -35.6% |
| Q1 2019 | $350,000 | +57.7% | 2,230 | -0.8% | 0.09% | +33.8% |
| Q4 2018 | $222,000 | -52.9% | 2,249 | -30.4% | 0.06% | -44.0% |
| Q3 2018 | $471,000 | +31.9% | 3,233 | +41.6% | 0.12% | +22.1% |
| Q2 2018 | $357,000 | +66.0% | 2,283 | +81.0% | 0.10% | +41.8% |
| Q1 2018 | $215,000 | – | 1,261 | – | 0.07% | – |
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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% |