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 | ||||
|---|---|---|---|---|---|---|
| Q2 2023 | $76,279 | +19.4% | 23,185 | +15.4% | 0.00% | – |
| Q1 2023 | $63,908 | -84.7% | 20,097 | -76.6% | 0.00% | -100.0% |
| Q1 2022 | $417,000 | +39.5% | 85,840 | +186.9% | 0.00% | 0.0% |
| Q4 2021 | $299,000 | -77.8% | 29,915 | -57.6% | 0.00% | -80.0% |
| Q3 2021 | $1,347,000 | +434.5% | 70,532 | +792.8% | 0.01% | +400.0% |
| Q2 2021 | $252,000 | -41.4% | 7,900 | -44.6% | 0.00% | -50.0% |
| Q1 2021 | $430,000 | +7.2% | 14,256 | +91.5% | 0.00% | 0.0% |
| Q3 2020 | $401,000 | -7.0% | 7,445 | +5.4% | 0.00% | -33.3% |
| Q2 2020 | $431,000 | -55.8% | 7,062 | -66.7% | 0.00% | -62.5% |
| Q1 2020 | $975,000 | -75.2% | 21,204 | -52.7% | 0.01% | -71.4% |
| Q4 2019 | $3,936,000 | +31.2% | 44,859 | +37.3% | 0.03% | +12.0% |
| Q3 2019 | $3,000,000 | +148.3% | 32,672 | +243.9% | 0.02% | +150.0% |
| Q2 2019 | $1,208,000 | -40.0% | 9,500 | -25.8% | 0.01% | -37.5% |
| Q1 2019 | $2,014,000 | +832.4% | 12,800 | +489.9% | 0.02% | +1500.0% |
| Q4 2018 | $216,000 | +1863.6% | 2,170 | +2070.0% | 0.00% | – |
| Q2 2017 | $11,000 | -86.6% | 100 | -88.9% | 0.00% | -100.0% |
| Q1 2017 | $82,000 | +1266.7% | 900 | +800.0% | 0.00% | – |
| Q4 2016 | $6,000 | -71.4% | 100 | -66.7% | 0.00% | – |
| Q3 2016 | $21,000 | -92.8% | 300 | -95.5% | 0.00% | -100.0% |
| Q2 2016 | $290,000 | +13.3% | 6,704 | +11.7% | 0.00% | -50.0% |
| Q1 2016 | $256,000 | -69.1% | 6,000 | -53.7% | 0.00% | -75.0% |
| Q4 2015 | $829,000 | -42.0% | 12,959 | -22.0% | 0.01% | -38.5% |
| Q3 2015 | $1,429,000 | -70.8% | 16,615 | -42.7% | 0.01% | -73.5% |
| Q2 2015 | $4,886,000 | +425.4% | 29,000 | +276.2% | 0.05% | +444.4% |
| Q1 2015 | $930,000 | – | 7,708 | – | 0.01% | – |
Download | ||||||
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% |