BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 172 filers reported holding BLUEBIRD BIO INC in Q4 2014. The put-call ratio across all filers is 0.23 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2017 | $7,777,000 | +18.4% | 56,625 | -9.4% | 0.03% | +19.2% |
| Q2 2017 | $6,569,000 | +24.0% | 62,530 | +7.3% | 0.03% | +23.8% |
| Q1 2017 | $5,298,000 | +21.6% | 58,286 | -17.5% | 0.02% | +16.7% |
| Q4 2016 | $4,357,000 | -7.6% | 70,617 | +1.5% | 0.02% | -10.0% |
| Q3 2016 | $4,714,000 | +51.9% | 69,549 | -3.0% | 0.02% | +53.8% |
| Q2 2016 | $3,103,000 | +79.0% | 71,671 | +75.7% | 0.01% | +62.5% |
| Q1 2016 | $1,734,000 | -33.8% | 40,800 | 0.0% | 0.01% | -27.3% |
| Q4 2015 | $2,620,000 | +5.7% | 40,800 | +40.8% | 0.01% | 0.0% |
| Q3 2015 | $2,478,000 | -40.4% | 28,970 | +17.3% | 0.01% | -35.3% |
| Q2 2015 | $4,157,000 | -45.1% | 24,690 | -60.6% | 0.02% | -45.2% |
| Q1 2015 | $7,568,000 | +27.5% | 62,664 | -3.2% | 0.03% | +24.0% |
| Q4 2014 | $5,937,000 | +891.2% | 64,726 | +287.5% | 0.02% | +733.3% |
| Q3 2014 | $599,000 | +6.4% | 16,704 | +14.4% | 0.00% | +50.0% |
| Q2 2014 | $563,000 | +369.2% | 14,605 | +177.4% | 0.00% | +100.0% |
| Q1 2014 | $120,000 | +10.1% | 5,265 | +1.8% | 0.00% | – |
| Q4 2013 | $109,000 | +98.2% | 5,173 | +154.5% | 0.00% | – |
| Q3 2013 | $55,000 | – | 2,033 | – | 0.00% | – |
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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% |