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 2022 | $100,000 | 0.0% | 545 | 0.0% | 0.00% | 0.0% |
| Q2 2022 | $100,000 | 0.0% | 545 | 0.0% | 0.00% | +200.0% |
| Q1 2022 | $100,000 | – | 545 | – | 0.00% | – |
| Q2 2021 | $0 | – | 0 | – | 0.00% | – |
| Q1 2021 | $0 | -100.0% | 0 | -100.0% | 0.00% | -100.0% |
| Q4 2020 | $46,000 | -19.3% | 1,012 | -1.3% | 0.00% | -33.3% |
| Q3 2020 | $57,000 | -6.6% | 1,025 | +0.9% | 0.00% | -40.0% |
| Q2 2020 | $61,000 | +35.6% | 1,016 | +2.4% | 0.01% | 0.0% |
| Q1 2020 | $45,000 | -29.7% | 992 | +37.2% | 0.01% | 0.0% |
| Q4 2019 | $64,000 | -11.1% | 723 | -4.2% | 0.01% | 0.0% |
| Q3 2019 | $72,000 | +3500.0% | 755 | +9337.5% | 0.01% | – |
| Q1 2019 | $2,000 | -98.4% | 8 | -99.4% | 0.00% | -100.0% |
| Q4 2018 | $125,000 | -53.7% | 1,285 | -30.5% | 0.01% | -27.3% |
| Q3 2018 | $270,000 | -19.6% | 1,848 | -13.7% | 0.01% | -21.4% |
| Q2 2018 | $336,000 | +3.1% | 2,142 | +17.0% | 0.01% | -6.7% |
| Q1 2018 | $326,000 | 0.0% | 1,830 | 0.0% | 0.02% | 0.0% |
| Q4 2017 | $326,000 | +226.0% | 1,830 | +150.7% | 0.02% | +275.0% |
| Q3 2017 | $100,000 | -66.4% | 730 | -74.3% | 0.00% | -69.2% |
| Q2 2017 | $298,000 | +2028.6% | 2,839 | +1792.7% | 0.01% | +1200.0% |
| Q1 2017 | $14,000 | +16.7% | 150 | -25.0% | 0.00% | 0.0% |
| Q4 2016 | $12,000 | +71.4% | 200 | +100.0% | 0.00% | – |
| Q3 2016 | $7,000 | +250.0% | 100 | +100.0% | 0.00% | – |
| Q2 2016 | $2,000 | 0.0% | 50 | +525.0% | 0.00% | – |
| Q1 2016 | $2,000 | -75.0% | 8 | -93.6% | 0.00% | -100.0% |
| Q4 2015 | $8,000 | – | 125 | – | 0.00% | – |
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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% |