BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 197 filers reported holding BLUEBIRD BIO INC in Q3 2021. The put-call ratio across all filers is 1.22 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q2 2021 | $564,000 | +15.6% | 17,637 | +95.0% | 0.05% | +54.8% |
| Q3 2020 | $488,000 | -69.5% | 9,046 | -65.5% | 0.03% | -72.1% |
| Q2 2020 | $1,599,000 | +18.9% | 26,194 | -10.5% | 0.11% | +13.3% |
| Q1 2020 | $1,345,000 | -5.3% | 29,254 | +266.9% | 0.10% | -37.2% |
| Q4 2017 | $1,420,000 | +383.0% | 7,973 | +184.8% | 0.16% | +95.0% |
| Q2 2017 | $294,000 | -67.1% | 2,800 | -86.7% | 0.08% | -23.8% |
| Q1 2016 | $893,000 | -44.7% | 21,000 | +118.8% | 0.10% | -42.0% |
| Q2 2015 | $1,615,000 | +199.6% | 9,600 | +115.0% | 0.18% | +229.1% |
| Q1 2015 | $539,000 | – | 4,465 | – | 0.06% | – |
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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% |