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 2023 | $70 | -7.9% | 23,084 | 0.0% | 0.00% | -100.0% |
| Q2 2023 | $76 | +153.3% | 23,084 | +146.7% | 0.00% | – |
| Q1 2023 | $30 | -42.3% | 9,358 | +23.4% | 0.00% | – |
| Q4 2022 | $52 | -94.8% | 7,585 | +3183.5% | 0.00% | – |
| Q3 2022 | $1,000 | -98.9% | 231 | -99.0% | 0.00% | -100.0% |
| Q2 2022 | $93,000 | +9200.0% | 22,467 | +9626.0% | 0.00% | – |
| Q1 2022 | $1,000 | -50.0% | 231 | 0.0% | 0.00% | – |
| Q4 2021 | $2,000 | -50.0% | 231 | 0.0% | 0.00% | – |
| Q3 2021 | $4,000 | 0.0% | 231 | +84.8% | 0.00% | – |
| Q2 2021 | $4,000 | 0.0% | 125 | 0.0% | 0.00% | – |
| Q1 2021 | $4,000 | -20.0% | 125 | 0.0% | 0.00% | – |
| Q4 2020 | $5,000 | -75.0% | 125 | -65.9% | 0.00% | – |
| Q3 2020 | $20,000 | +42.9% | 367 | +17.6% | 0.00% | – |
| Q2 2020 | $14,000 | 0.0% | 312 | 0.0% | 0.00% | – |
| Q1 2020 | $14,000 | -48.1% | 312 | 0.0% | 0.00% | – |
| Q4 2019 | $27,000 | -15.6% | 312 | -10.6% | 0.00% | – |
| Q3 2019 | $32,000 | -27.3% | 349 | 0.0% | 0.00% | – |
| Q2 2019 | $44,000 | -93.4% | 349 | -91.7% | 0.00% | -100.0% |
| Q1 2019 | $665,000 | +7.8% | 4,225 | -32.1% | 0.01% | 0.0% |
| Q4 2018 | $617,000 | -72.7% | 6,224 | -59.8% | 0.01% | -68.4% |
| Q3 2018 | $2,258,000 | -7.3% | 15,465 | -0.3% | 0.02% | 0.0% |
| Q2 2018 | $2,435,000 | +27.2% | 15,515 | +38.4% | 0.02% | +26.7% |
| Q1 2018 | $1,914,000 | +2.9% | 11,209 | +7.3% | 0.02% | +15.4% |
| Q4 2017 | $1,860,000 | -36.3% | 10,444 | -50.9% | 0.01% | -35.0% |
| Q3 2017 | $2,920,000 | +64.5% | 21,263 | +25.9% | 0.02% | +81.8% |
| Q2 2017 | $1,775,000 | – | 16,895 | – | 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% |