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 | ||||
|---|---|---|---|---|---|---|
| Q2 2019 | $18,024,000 | -19.2% | 141,700 | 0.0% | 0.49% | -18.5% |
| Q1 2019 | $22,294,000 | +58.6% | 141,700 | 0.0% | 0.60% | +47.5% |
| Q4 2018 | $14,057,000 | -32.1% | 141,700 | 0.0% | 0.41% | -27.5% |
| Q3 2018 | $20,688,000 | -7.0% | 141,700 | 0.0% | 0.56% | -11.1% |
| Q2 2018 | $22,240,000 | -8.1% | 141,700 | 0.0% | 0.63% | -17.9% |
| Q1 2018 | $24,195,000 | +47.7% | 141,700 | +54.0% | 0.77% | +21.2% |
| Q4 2017 | $16,385,000 | – | 92,000 | – | 0.63% | – |
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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% |