BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 238 filers reported holding BLUEBIRD BIO INC in Q1 2021. The put-call ratio across all filers is 1.69 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2022 | $291,000 | -4.9% | 70,320 | +634.6% | 0.02% | -16.7% |
| Q2 2021 | $306,000 | -65.7% | 9,572 | -53.5% | 0.03% | -68.8% |
| Q4 2020 | $891,000 | +84.5% | 20,599 | +291.4% | 0.10% | +152.6% |
| Q3 2019 | $483,000 | +86.5% | 5,263 | +158.9% | 0.04% | +153.3% |
| Q2 2019 | $259,000 | -24.9% | 2,033 | -7.4% | 0.02% | -25.0% |
| Q1 2019 | $345,000 | +6.2% | 2,196 | -32.9% | 0.02% | +11.1% |
| Q4 2018 | $325,000 | -46.5% | 3,273 | -15.5% | 0.02% | -33.3% |
| Q2 2018 | $608,000 | +29.4% | 3,872 | +40.6% | 0.03% | +8.0% |
| Q1 2018 | $470,000 | +20.2% | 2,753 | +25.3% | 0.02% | +19.0% |
| Q4 2017 | $391,000 | -70.8% | 2,198 | -77.4% | 0.02% | -68.2% |
| Q3 2017 | $1,338,000 | – | 9,742 | – | 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% |