BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 296 filers reported holding BLUEBIRD BIO INC in Q1 2019. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $5,064 | -40.2% | 265 | 0.0% | 0.00% | – |
| Q2 2021 | $8,475 | +6.1% | 265 | 0.0% | 0.00% | – |
| Q1 2021 | $7,990 | -30.3% | 265 | 0.0% | 0.00% | -100.0% |
| Q4 2020 | $11,467 | -19.8% | 265 | 0.0% | 0.00% | 0.0% |
| Q3 2020 | $14,297 | +260.3% | 265 | +307.7% | 0.00% | – |
| Q2 2020 | $3,968 | +32.8% | 65 | 0.0% | 0.00% | – |
| Q1 2020 | $2,987 | -47.6% | 65 | 0.0% | 0.00% | -100.0% |
| Q4 2019 | $5,704 | -4.4% | 65 | 0.0% | 0.00% | 0.0% |
| Q3 2019 | $5,968 | -27.8% | 65 | 0.0% | 0.00% | 0.0% |
| Q2 2019 | $8,268 | -19.1% | 65 | 0.0% | 0.00% | 0.0% |
| Q1 2019 | $10,226 | +58.6% | 65 | 0.0% | 0.00% | 0.0% |
| Q4 2018 | $6,448 | -32.1% | 65 | 0.0% | 0.00% | 0.0% |
| Q3 2018 | $9,490 | -7.0% | 65 | 0.0% | 0.00% | 0.0% |
| Q2 2018 | $10,202 | -8.1% | 65 | 0.0% | 0.00% | 0.0% |
| Q1 2018 | $11,099 | – | 65 | – | 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% |