BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 240 filers reported holding BLUEBIRD BIO INC in Q2 2015. The put-call ratio across all filers is 1.07 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2016 | $9,739,000 | -6.8% | 157,838 | +2.4% | 0.01% | -15.4% |
| Q3 2016 | $10,447,000 | +64.3% | 154,127 | +5.0% | 0.01% | +62.5% |
| Q2 2016 | $6,357,000 | +1007.5% | 146,840 | +987.5% | 0.01% | +700.0% |
| Q1 2016 | $574,000 | -48.6% | 13,502 | -22.4% | 0.00% | 0.0% |
| Q4 2015 | $1,117,000 | -25.5% | 17,389 | -0.8% | 0.00% | -50.0% |
| Q3 2015 | $1,500,000 | -58.4% | 17,535 | -18.2% | 0.00% | -50.0% |
| Q2 2015 | $3,610,000 | -60.3% | 21,443 | -71.5% | 0.00% | -66.7% |
| Q1 2015 | $9,086,000 | +50.5% | 75,235 | +14.3% | 0.01% | +50.0% |
| Q4 2014 | $6,039,000 | +153.8% | 65,842 | -0.7% | 0.01% | +166.7% |
| Q3 2014 | $2,379,000 | +6.3% | 66,303 | +14.2% | 0.00% | 0.0% |
| Q2 2014 | $2,239,000 | +395.4% | 58,044 | +192.3% | 0.00% | +200.0% |
| Q1 2014 | $452,000 | +14.4% | 19,855 | +5.4% | 0.00% | 0.0% |
| Q4 2013 | $395,000 | -22.1% | 18,844 | +0.3% | 0.00% | 0.0% |
| Q3 2013 | $507,000 | – | 18,792 | – | 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% |