BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 282 filers reported holding BLUEBIRD BIO INC in Q4 2019. The put-call ratio across all filers is 0.80 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2023 | $6,487 | -63.1% | 2,040 | -19.7% | 0.00% | -100.0% |
| Q4 2022 | $17,577 | -20.1% | 2,540 | +268.1% | 0.00% | 0.0% |
| Q2 2021 | $22,000 | +1000.0% | 690 | +1625.0% | 0.00% | – |
| Q4 2020 | $2,000 | 0.0% | 40 | -24.5% | 0.00% | – |
| Q3 2020 | $2,000 | 0.0% | 53 | +32.5% | 0.00% | – |
| Q1 2020 | $2,000 | -80.0% | 40 | -61.5% | 0.00% | -100.0% |
| Q4 2019 | $10,000 | +100.0% | 104 | +160.0% | 0.00% | – |
| Q3 2019 | $5,000 | 0.0% | 40 | 0.0% | 0.00% | – |
| Q2 2019 | $5,000 | +25.0% | 40 | 0.0% | 0.00% | – |
| Q4 2018 | $4,000 | -33.3% | 40 | 0.0% | 0.00% | – |
| Q3 2018 | $6,000 | -14.3% | 40 | 0.0% | 0.00% | -100.0% |
| Q2 2018 | $7,000 | -63.2% | 40 | -63.6% | 0.00% | -50.0% |
| Q1 2018 | $19,000 | +171.4% | 110 | +175.0% | 0.00% | +100.0% |
| Q4 2017 | $7,000 | – | 40 | – | 0.00% | – |
Download | ||||||
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% |