BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 211 filers reported holding BLUEBIRD BIO INC in Q4 2016. The put-call ratio across all filers is 0.81 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2018 | $339,000 | -15.5% | 1,991 | -11.7% | 0.20% | -25.8% |
| Q4 2017 | $401,000 | +20.4% | 2,254 | -7.1% | 0.26% | +18.4% |
| Q3 2017 | $333,000 | +20.7% | 2,425 | -7.8% | 0.22% | +18.6% |
| Q2 2017 | $276,000 | -2.1% | 2,630 | -15.1% | 0.19% | -2.1% |
| Q1 2017 | $282,000 | +14.2% | 3,097 | -15.2% | 0.19% | +9.1% |
| Q3 2016 | $247,000 | – | 3,650 | – | 0.18% | – |
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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% |