BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 314 filers reported holding BLUEBIRD BIO INC in Q2 2018. The put-call ratio across all filers is 0.60 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2018 | $236,000 | -33.9% | 2,381 | -2.5% | 0.00% | -40.0% |
| Q3 2018 | $357,000 | +8.5% | 2,442 | +16.4% | 0.01% | 0.0% |
| Q2 2018 | $329,000 | -8.1% | 2,098 | 0.0% | 0.01% | 0.0% |
| Q1 2018 | $358,000 | -7.0% | 2,098 | -3.0% | 0.01% | -16.7% |
| Q4 2017 | $385,000 | +13.2% | 2,162 | -12.6% | 0.01% | +20.0% |
| Q3 2017 | $340,000 | +53.8% | 2,474 | +17.8% | 0.01% | +66.7% |
| Q2 2017 | $221,000 | -0.9% | 2,100 | -14.6% | 0.00% | -25.0% |
| Q1 2017 | $223,000 | +12.1% | 2,458 | -23.8% | 0.00% | 0.0% |
| Q4 2016 | $199,000 | -63.3% | 3,225 | -59.7% | 0.00% | -60.0% |
| Q3 2016 | $542,000 | +95.7% | 8,000 | +25.0% | 0.01% | +100.0% |
| Q2 2016 | $277,000 | +30.7% | 6,400 | +28.0% | 0.01% | +25.0% |
| Q1 2016 | $212,000 | -34.0% | 5,000 | 0.0% | 0.00% | -33.3% |
| Q4 2015 | $321,000 | – | 5,000 | – | 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% |