BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 255 filers reported holding BLUEBIRD BIO INC in Q4 2018. The put-call ratio across all filers is 0.54 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $39,592,000 | -19.8% | 915,000 | 0.0% | 1.17% | -46.9% |
| Q3 2020 | $49,364,000 | -26.8% | 915,000 | -17.2% | 2.21% | -44.6% |
| Q2 2020 | $67,449,000 | +32.8% | 1,105,000 | 0.0% | 3.99% | -26.0% |
| Q1 2020 | $50,786,000 | -40.3% | 1,105,000 | +13.9% | 5.39% | -31.1% |
| Q4 2019 | $85,118,000 | -99.8% | 970,000 | +58.4% | 7.83% | +34.5% |
| Q3 2019 | $56,239,750,000 | +18.7% | 612,500 | +64.4% | 5.82% | +31.2% |
| Q2 2019 | $47,382,000,000 | +84142.2% | 372,500 | +4.2% | 4.44% | -28.2% |
| Q1 2019 | $56,245,000 | +71.8% | 357,500 | +8.3% | 6.18% | +10.3% |
| Q4 2018 | $32,736,000 | -13.1% | 330,000 | +27.9% | 5.60% | +22.3% |
| Q3 2018 | $37,668,000 | +20.0% | 258,000 | +29.0% | 4.58% | +4.3% |
| Q2 2018 | $31,390,000 | +26.8% | 200,000 | +37.9% | 4.39% | +0.8% |
| Q1 2018 | $24,759,000 | -4.1% | 145,000 | 0.0% | 4.35% | -30.8% |
| Q4 2017 | $25,825,000 | +29.7% | 145,000 | 0.0% | 6.29% | +11.8% |
| Q3 2017 | $19,916,000 | +191.7% | 145,000 | +123.1% | 5.62% | +122.6% |
| Q2 2017 | $6,828,000 | +194.6% | 65,000 | +154.9% | 2.53% | +84.8% |
| Q1 2017 | $2,318,000 | -54.5% | 25,500 | -69.1% | 1.37% | -67.5% |
| Q4 2016 | $5,090,000 | +25.2% | 82,500 | +37.5% | 4.20% | +27.7% |
| Q3 2016 | $4,067,000 | -23.3% | 60,000 | -51.0% | 3.29% | -37.6% |
| Q2 2016 | $5,303,000 | +4.0% | 122,500 | +2.1% | 5.28% | -9.8% |
| Q1 2016 | $5,100,000 | -33.8% | 120,000 | 0.0% | 5.85% | -14.0% |
| Q4 2015 | $7,706,000 | – | 120,000 | – | 6.81% | – |
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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% |