BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $415,000 | +12.5% | 7,694 | +92.1% | 0.01% | +37.5% |
| Q3 2019 | $369,000 | -94.5% | 4,005 | -92.4% | 0.01% | -92.9% |
| Q2 2019 | $6,665,000 | +117.5% | 52,400 | +169.0% | 0.11% | +52.7% |
| Q1 2019 | $3,065,000 | +1209.8% | 19,479 | +1117.4% | 0.07% | +1750.0% |
| Q3 2018 | $234,000 | -99.0% | 1,600 | -98.9% | 0.00% | -99.0% |
| Q2 2018 | $22,653,000 | +2322.8% | 144,328 | +2646.0% | 0.41% | +3084.6% |
| Q4 2017 | $935,000 | +297.9% | 5,256 | +207.5% | 0.01% | +333.3% |
| Q3 2017 | $235,000 | -96.1% | 1,709 | -98.1% | 0.00% | -95.9% |
| Q3 2016 | $5,975,000 | +429.2% | 88,150 | +567.8% | 0.07% | +184.6% |
| Q3 2015 | $1,129,000 | -85.1% | 13,201 | -70.8% | 0.03% | -82.2% |
| Q2 2015 | $7,602,000 | – | 45,156 | – | 0.15% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 5,910,687 | $24,470,000 | 3.71% |
| Monaco Asset Management SAM | 306,142 | $1,267,000 | 0.55% |
| Parametrica Management Ltd | 90,105 | $374,000 | 0.41% |
| Kamunting Street Capital Management, L.P. | 55,200 | $229,000 | 0.31% |
| Birchview Capital, LP | 98,000 | $406,000 | 0.30% |
| Kamunting Street Capital Management, L.P. | 35,000 | $145,000 | 0.20% |
| PDT Partners, LLC | 519,477 | $2,151,000 | 0.19% |
| Graham Capital Management, L.P. | 781,912 | $3,237,000 | 0.13% |
| CAXTON ASSOCIATES LP | 220,154 | $911,000 | 0.09% |
| Baker Brothers Advisors | 2,499,715 | $10,349,000 | 0.06% |