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 | ||||
|---|---|---|---|---|---|---|
| Q4 2022 | $210,368 | +5.7% | 30,400 | -3.2% | 0.00% | 0.0% |
| Q3 2022 | $199,000 | -80.2% | 31,400 | -87.0% | 0.00% | -66.7% |
| Q2 2022 | $1,004,000 | -61.9% | 242,400 | -55.4% | 0.00% | -57.1% |
| Q1 2022 | $2,635,000 | +259.5% | 543,200 | +640.1% | 0.01% | +250.0% |
| Q4 2021 | $733,000 | -64.5% | 73,400 | +7.2% | 0.00% | -66.7% |
| Q1 2021 | $2,065,000 | -72.9% | 68,500 | -61.2% | 0.01% | -70.0% |
| Q4 2020 | $7,633,000 | -41.6% | 176,400 | -27.1% | 0.02% | -45.9% |
| Q3 2020 | $13,061,000 | +63.5% | 242,100 | +85.0% | 0.04% | +60.9% |
| Q2 2020 | $7,990,000 | +55.1% | 130,900 | +16.8% | 0.02% | +15.0% |
| Q1 2020 | $5,152,000 | -47.8% | 112,100 | -0.4% | 0.02% | -13.0% |
| Q4 2019 | $9,872,000 | +125.1% | 112,500 | +154.5% | 0.02% | +91.7% |
| Q4 2018 | $4,385,000 | -89.8% | 44,200 | -82.4% | 0.01% | -89.7% |
| Q1 2018 | $42,892,000 | -47.9% | 251,200 | -45.7% | 0.12% | -47.7% |
| Q4 2017 | $82,371,000 | +3924.0% | 462,500 | +3004.0% | 0.22% | +3600.0% |
| Q3 2017 | $2,047,000 | +195.4% | 14,900 | +125.8% | 0.01% | +200.0% |
| Q2 2017 | $693,000 | -61.1% | 6,600 | -51.8% | 0.00% | -81.8% |
| Q3 2015 | $1,780,000 | -84.2% | 13,700 | -79.5% | 0.01% | -87.4% |
| Q2 2015 | $11,247,000 | +1839.1% | 66,800 | +1291.7% | 0.09% | +2075.0% |
| Q1 2015 | $580,000 | -57.6% | 4,800 | -67.8% | 0.00% | -63.6% |
| Q4 2014 | $1,367,000 | – | 14,900 | – | 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% |