BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 303 filers reported holding BLUEBIRD BIO INC in Q4 2017. The put-call ratio across all filers is 0.85 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2021 | $623,000 | 0.0% | 14,406 | 0.0% | 0.14% | +0.7% |
| Q4 2020 | $623,000 | +126.5% | 14,406 | +182.1% | 0.14% | +140.7% |
| Q3 2020 | $275,000 | -84.0% | 5,106 | -59.2% | 0.06% | -71.9% |
| Q3 2017 | $1,718,000 | +1490.7% | 12,511 | +393.5% | 0.21% | +356.5% |
| Q1 2016 | $108,000 | -40.0% | 2,535 | +20.7% | 0.05% | -70.7% |
| Q3 2015 | $180,000 | +429.4% | 2,100 | +950.0% | 0.16% | +292.5% |
| Q2 2015 | $34,000 | -29.2% | 200 | -50.0% | 0.04% | -50.0% |
| Q1 2015 | $48,000 | -75.1% | 400 | -81.0% | 0.08% | -75.1% |
| Q4 2014 | $193,000 | – | 2,100 | – | 0.32% | – |
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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% |