BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 197 filers reported holding BLUEBIRD BIO INC in Q3 2021. The put-call ratio across all filers is 1.22 and the average weighting 0.0%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2023 | $1,845,529 | -41.2% | 607,082 | -36.3% | 0.00% | 0.0% |
| Q2 2023 | $3,136,341 | +91.9% | 953,295 | +85.4% | 0.00% | 0.0% |
| Q1 2023 | $1,634,762 | -31.3% | 514,076 | +49.4% | 0.00% | 0.0% |
| Q4 2022 | $2,380,480 | -41.0% | 344,000 | -46.1% | 0.00% | -50.0% |
| Q3 2022 | $4,038,000 | +232.3% | 637,796 | +117.4% | 0.00% | +100.0% |
| Q2 2022 | $1,215,000 | +174.9% | 293,423 | +221.3% | 0.00% | – |
| Q1 2022 | $442,000 | -82.5% | 91,319 | -63.7% | 0.00% | -100.0% |
| Q4 2021 | $2,532,000 | -65.6% | 251,324 | -34.7% | 0.00% | -50.0% |
| Q3 2021 | $7,356,000 | -36.2% | 384,930 | +6.8% | 0.00% | -50.0% |
| Q2 2021 | $11,531,000 | -25.1% | 360,561 | -29.4% | 0.00% | -50.0% |
| Q1 2021 | $15,393,000 | +6.9% | 510,572 | +53.5% | 0.01% | +14.3% |
| Q4 2020 | $14,394,000 | -7.7% | 332,675 | +15.1% | 0.01% | -30.0% |
| Q3 2020 | $15,598,000 | +19.2% | 289,114 | +34.8% | 0.01% | 0.0% |
| Q2 2020 | $13,088,000 | +543.1% | 214,407 | +384.3% | 0.01% | +400.0% |
| Q1 2020 | $2,035,000 | -89.3% | 44,269 | -79.6% | 0.00% | -92.6% |
| Q4 2019 | $19,064,000 | +157.6% | 217,262 | +169.5% | 0.03% | +125.0% |
| Q3 2019 | $7,402,000 | -14.8% | 80,616 | +18.0% | 0.01% | -20.0% |
| Q2 2019 | $8,686,000 | -28.7% | 68,291 | -11.8% | 0.02% | -25.0% |
| Q1 2019 | $12,184,000 | +136.6% | 77,438 | +49.1% | 0.02% | +81.8% |
| Q4 2018 | $5,150,000 | -8.1% | 51,921 | +35.3% | 0.01% | 0.0% |
| Q3 2018 | $5,602,000 | -63.0% | 38,372 | -60.2% | 0.01% | -69.4% |
| Q2 2018 | $15,143,000 | +117.7% | 96,483 | +136.8% | 0.04% | +89.5% |
| Q1 2018 | $6,956,000 | -41.2% | 40,738 | -38.7% | 0.02% | -44.1% |
| Q4 2017 | $11,838,000 | -33.0% | 66,468 | -48.3% | 0.03% | -40.4% |
| Q3 2017 | $17,664,000 | +161.5% | 128,603 | +99.9% | 0.06% | +147.8% |
| Q2 2017 | $6,756,000 | +1153.4% | 64,321 | +984.5% | 0.02% | +1050.0% |
| Q1 2017 | $539,000 | -83.9% | 5,931 | -89.1% | 0.00% | -85.7% |
| Q4 2016 | $3,344,000 | +28.0% | 54,210 | +40.6% | 0.01% | +7.7% |
| Q3 2016 | $2,613,000 | +194.3% | 38,555 | +87.9% | 0.01% | +225.0% |
| Q2 2016 | $888,000 | -44.2% | 20,519 | -45.2% | 0.00% | -55.6% |
| Q1 2016 | $1,591,000 | -54.9% | 37,425 | -31.9% | 0.01% | -59.1% |
| Q4 2015 | $3,529,000 | +115.6% | 54,951 | +187.0% | 0.02% | +120.0% |
| Q3 2015 | $1,637,000 | -58.4% | 19,148 | -18.0% | 0.01% | -60.0% |
| Q2 2015 | $3,932,000 | +448.4% | 23,350 | +293.5% | 0.02% | +316.7% |
| Q1 2015 | $717,000 | +1.4% | 5,934 | -69.9% | 0.01% | -14.3% |
| Q3 2014 | $707,000 | -32.7% | 19,709 | -27.6% | 0.01% | -46.2% |
| Q2 2014 | $1,050,000 | – | 27,232 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Monashee Investment Management LLC | 125,000 | $13,131,000 | 5.55% |
| Cormorant Asset Management, LP | 275,000 | $28,889,000 | 4.79% |
| Eventide Asset Management | 569,700 | $59,847,000 | 3.73% |
| Crosspoint Capital Strategies, LLC | 28,937 | $3,040,000 | 2.66% |
| Casdin Capital, LLC | 65,000 | $6,828,000 | 2.53% |
| ARK Investment Management | 119,683 | $12,573,000 | 2.45% |
| RTW INVESTMENTS, LP | 104,383 | $10,965,000 | 2.31% |
| Taylor Wealth Management Partners | 38,368 | $4,031,000 | 1.82% |
| First Light Asset Management, LLC | 33,780 | $3,549,000 | 1.19% |
| Atika Capital Management LLC | 25,000 | $2,627,000 | 0.92% |