BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 294 filers reported holding BLUEBIRD BIO INC in Q3 2018. The put-call ratio across all filers is 0.85 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $8,000 | -20.0% | 148 | -13.5% | 0.00% | -40.0% |
| Q2 2020 | $10,000 | -83.9% | 171 | -75.8% | 0.01% | -82.8% |
| Q4 2019 | $62,000 | +72.2% | 708 | +80.6% | 0.03% | +107.1% |
| Q3 2019 | $36,000 | +350.0% | 392 | +532.3% | 0.01% | +366.7% |
| Q2 2019 | $8,000 | +166.7% | 62 | +226.3% | 0.00% | +200.0% |
| Q1 2019 | $3,000 | -87.5% | 19 | -92.2% | 0.00% | -85.7% |
| Q4 2018 | $24,000 | +166.7% | 244 | +275.4% | 0.01% | +250.0% |
| Q3 2018 | $9,000 | +800.0% | 65 | +622.2% | 0.00% | – |
| Q2 2018 | $1,000 | -92.9% | 9 | -89.2% | 0.00% | -100.0% |
| Q1 2018 | $14,000 | – | 83 | – | 0.01% | – |
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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% |