BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 196 filers reported holding BLUEBIRD BIO INC in Q4 2015. The put-call ratio across all filers is 1.25 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $1,465,000 | -30.6% | 33,871 | -13.5% | 0.00% | -42.9% |
| Q3 2020 | $2,112,000 | +14.4% | 39,154 | +29.5% | 0.01% | 0.0% |
| Q2 2020 | $1,846,000 | +91.3% | 30,245 | +44.1% | 0.01% | +75.0% |
| Q1 2020 | $965,000 | -34.4% | 20,992 | +25.3% | 0.00% | -20.0% |
| Q4 2019 | $1,470,000 | +31.7% | 16,759 | +37.9% | 0.01% | +25.0% |
| Q3 2019 | $1,116,000 | -29.5% | 12,150 | -2.4% | 0.00% | -33.3% |
| Q2 2019 | $1,583,000 | -15.6% | 12,447 | +4.4% | 0.01% | -25.0% |
| Q1 2019 | $1,875,000 | +95.3% | 11,917 | +23.1% | 0.01% | +60.0% |
| Q4 2018 | $960,000 | 0.0% | 9,681 | +47.2% | 0.01% | +25.0% |
| Q3 2018 | $960,000 | -16.2% | 6,576 | -9.9% | 0.00% | -20.0% |
| Q2 2018 | $1,145,000 | +0.8% | 7,295 | +9.7% | 0.01% | -16.7% |
| Q1 2018 | $1,136,000 | -1.8% | 6,649 | +2.4% | 0.01% | 0.0% |
| Q4 2017 | $1,157,000 | +58.9% | 6,496 | +22.6% | 0.01% | +50.0% |
| Q3 2017 | $728,000 | +38.7% | 5,299 | +6.0% | 0.00% | +33.3% |
| Q2 2017 | $525,000 | +28.0% | 5,001 | +10.9% | 0.00% | 0.0% |
| Q1 2017 | $410,000 | +71.5% | 4,510 | +16.1% | 0.00% | +50.0% |
| Q4 2016 | $239,000 | -1.6% | 3,883 | +8.4% | 0.00% | 0.0% |
| Q3 2016 | $243,000 | -37.5% | 3,581 | -21.3% | 0.00% | -50.0% |
| Q3 2015 | $389,000 | -15.6% | 4,549 | +66.3% | 0.00% | -20.0% |
| Q2 2015 | $461,000 | +67.0% | 2,736 | +19.6% | 0.01% | +66.7% |
| Q1 2015 | $276,000 | – | 2,287 | – | 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% |