BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 177 filers reported holding BLUEBIRD BIO INC in Q4 2021. The put-call ratio across all filers is 1.00 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2021 | $197,000 | -40.3% | 10,309 | -0.1% | 0.02% | -41.0% |
| Q2 2021 | $330,000 | +6.1% | 10,321 | 0.0% | 0.04% | -2.5% |
| Q1 2021 | $311,000 | +12.3% | 10,321 | +61.1% | 0.04% | +8.1% |
| Q4 2020 | $277,000 | -19.9% | 6,408 | 0.0% | 0.04% | -33.9% |
| Q3 2020 | $346,000 | -11.5% | 6,408 | 0.0% | 0.06% | -16.4% |
| Q2 2020 | $391,000 | +32.5% | 6,408 | 0.0% | 0.07% | +11.7% |
| Q1 2020 | $295,000 | -47.5% | 6,408 | 0.0% | 0.06% | -34.8% |
| Q4 2019 | $562,000 | -4.4% | 6,408 | 0.0% | 0.09% | -9.8% |
| Q3 2019 | $588,000 | -27.9% | 6,408 | 0.0% | 0.10% | -28.2% |
| Q2 2019 | $815,000 | -19.1% | 6,408 | 0.0% | 0.14% | -21.5% |
| Q1 2019 | $1,008,000 | +62.1% | 6,408 | +2.2% | 0.18% | +44.8% |
| Q4 2018 | $622,000 | -32.1% | 6,271 | 0.0% | 0.12% | -19.4% |
| Q3 2018 | $916,000 | -6.9% | 6,271 | 0.0% | 0.16% | -14.4% |
| Q2 2018 | $984,000 | -8.1% | 6,271 | 0.0% | 0.18% | -10.8% |
| Q1 2018 | $1,071,000 | -4.1% | 6,271 | 0.0% | 0.20% | -1.5% |
| Q4 2017 | $1,117,000 | +10.4% | 6,271 | -14.9% | 0.21% | +6.7% |
| Q3 2017 | $1,012,000 | +6.0% | 7,368 | -18.9% | 0.19% | +3.2% |
| Q2 2017 | $955,000 | +15.6% | 9,090 | 0.0% | 0.19% | +12.7% |
| Q1 2017 | $826,000 | +47.2% | 9,090 | 0.0% | 0.17% | +45.6% |
| Q4 2016 | $561,000 | -57.8% | 9,090 | -53.6% | 0.11% | -58.1% |
| Q3 2016 | $1,329,000 | +56.5% | 19,603 | 0.0% | 0.27% | +55.4% |
| Q2 2016 | $849,000 | +1.9% | 19,603 | -0.0% | 0.18% | 0.0% |
| Q1 2016 | $833,000 | -33.8% | 19,611 | 0.0% | 0.18% | -36.8% |
| Q4 2015 | $1,259,000 | -25.0% | 19,611 | 0.0% | 0.28% | -27.5% |
| Q3 2015 | $1,678,000 | -49.2% | 19,611 | 0.0% | 0.38% | -38.6% |
| Q2 2015 | $3,302,000 | +39.4% | 19,611 | 0.0% | 0.62% | +41.7% |
| Q1 2015 | $2,368,000 | +31.6% | 19,611 | 0.0% | 0.44% | +31.4% |
| Q4 2014 | $1,799,000 | +155.5% | 19,611 | 0.0% | 0.33% | +147.4% |
| Q3 2014 | $704,000 | +4.9% | 19,611 | +12.8% | 0.14% | +13.4% |
| Q2 2014 | $671,000 | +69.9% | 17,390 | 0.0% | 0.12% | +63.0% |
| Q1 2014 | $395,000 | +8.2% | 17,390 | 0.0% | 0.07% | +10.6% |
| Q4 2013 | $365,000 | +1.7% | 17,390 | +30.7% | 0.07% | -7.0% |
| Q3 2013 | $359,000 | – | 13,303 | – | 0.07% | – |
Download | ||||||
Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| TANG CAPITAL MANAGEMENT LLC | 6,335,528 | $40,104,000 | 4.92% |
| qPULA Trading Management LP | 14,344 | $91,000 | 0.80% |
| Frazier Life Sciences Management, L.P. | 1,440,757 | $9,120,000 | 0.70% |
| Ikarian Capital, LLC | 462,628 | $2,928,000 | 0.58% |
| Birchview Capital, LP | 98,000 | $620,000 | 0.44% |
| HealthCor Management, L.P. | 455,000 | $2,880,000 | 0.36% |
| Financial Advocates Investment Management | 45,071 | $3,538,000 | 0.29% |
| PDT Partners, LLC | 262,767 | $1,663,000 | 0.25% |
| Monaco Asset Management SAM | 80,000 | $506,000 | 0.19% |
| Summit X, LLC | 103,424 | $651,000 | 0.19% |