BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 212 filers reported holding BLUEBIRD BIO INC in Q1 2015. The put-call ratio across all filers is 1.10 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2015 | $25,022,000 | +135.7% | 148,615 | +69.1% | 0.98% | +117.3% |
| Q1 2015 | $10,616,000 | -38.6% | 87,900 | -53.4% | 0.45% | -40.2% |
| Q4 2014 | $17,298,000 | +133.0% | 188,600 | -8.9% | 0.75% | +125.1% |
| Q3 2014 | $7,425,000 | +45.8% | 207,000 | +56.8% | 0.33% | +71.3% |
| Q2 2014 | $5,091,000 | – | 132,000 | – | 0.20% | – |
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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% |