BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 193 filers reported holding BLUEBIRD BIO INC in Q1 2016. The put-call ratio across all filers is 1.50 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $39,435 | -86.9% | 12,972 | -86.3% | 0.00% | -100.0% |
| Q1 2023 | $301,827 | -43.6% | 94,914 | +22.8% | 0.00% | -50.0% |
| Q4 2022 | $535,061 | +26.5% | 77,321 | -11.4% | 0.00% | +100.0% |
| Q1 2022 | $423,000 | -51.5% | 87,300 | 0.0% | 0.00% | -50.0% |
| Q4 2021 | $872,000 | -47.7% | 87,300 | 0.0% | 0.00% | -33.3% |
| Q3 2021 | $1,668,000 | -40.3% | 87,300 | 0.0% | 0.00% | -50.0% |
| Q2 2021 | $2,792,000 | +990.6% | 87,300 | +927.2% | 0.01% | +500.0% |
| Q1 2021 | $256,000 | -30.4% | 8,499 | -0.1% | 0.00% | 0.0% |
| Q4 2020 | $368,000 | -23.0% | 8,510 | -4.0% | 0.00% | 0.0% |
| Q3 2020 | $478,000 | -7.7% | 8,860 | +4.4% | 0.00% | 0.0% |
| Q2 2020 | $518,000 | -76.5% | 8,490 | -82.3% | 0.00% | -85.7% |
| Q1 2020 | $2,202,000 | -48.0% | 47,917 | -0.7% | 0.01% | -36.4% |
| Q4 2019 | $4,234,000 | +68.6% | 48,247 | +76.4% | 0.01% | +57.1% |
| Q3 2019 | $2,511,000 | -28.0% | 27,350 | -0.2% | 0.01% | -30.0% |
| Q2 2019 | $3,486,000 | +8.1% | 27,409 | +33.8% | 0.01% | +11.1% |
| Q1 2019 | $3,224,000 | +105.9% | 20,492 | +29.8% | 0.01% | +80.0% |
| Q4 2018 | $1,566,000 | -32.0% | 15,784 | 0.0% | 0.01% | -16.7% |
| Q3 2018 | $2,304,000 | +49.3% | 15,784 | +60.5% | 0.01% | +50.0% |
| Q2 2018 | $1,543,000 | -81.7% | 9,834 | -80.0% | 0.00% | -83.3% |
| Q1 2018 | $8,413,000 | +7.3% | 49,270 | +11.9% | 0.02% | +9.1% |
| Q4 2017 | $7,842,000 | +29.7% | 44,032 | 0.0% | 0.02% | +22.2% |
| Q3 2017 | $6,048,000 | +85.7% | 44,032 | +42.0% | 0.02% | +63.6% |
| Q2 2017 | $3,257,000 | +206.7% | 31,000 | +24.0% | 0.01% | +175.0% |
| Q1 2016 | $1,062,000 | -36.2% | 24,990 | -3.6% | 0.00% | -33.3% |
| Q4 2015 | $1,665,000 | -27.2% | 25,920 | -3.0% | 0.01% | -33.3% |
| Q3 2015 | $2,287,000 | -46.1% | 26,730 | +6.1% | 0.01% | -40.0% |
| Q2 2015 | $4,243,000 | – | 25,200 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 4,282,827 | $13,019,794 | 1.84% |
| Birchview Capital, LP | 455,200 | $1,383,808 | 1.18% |
| PFM Health Sciences, LP | 6,040,934 | $18,364,439 | 0.86% |
| Lion Point Capital, LP | 531,256 | $1,615,018 | 0.72% |
| Endurant Capital Management LP | 251,785 | $765,426 | 0.69% |
| Bleichroeder LP | 900,000 | $2,736,000 | 0.67% |
| Connacht Asset Management LP | 31,634 | $96,167 | 0.57% |
| Granahan Investment Management | 5,137,778 | $15,618,845 | 0.56% |
| Frazier Life Sciences Management, L.P. | 1,709,907 | $5,198,117 | 0.34% |
| Contrarius Investment Management Ltd | 1,308,002 | $3,976 | 0.22% |