BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 251 filers reported holding BLUEBIRD BIO INC in Q3 2019. The put-call ratio across all filers is 1.49 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $314,000 | -15.6% | 3,580 | -11.7% | 0.03% | -25.0% |
| Q3 2019 | $372,000 | -41.6% | 4,055 | -19.0% | 0.04% | -41.2% |
| Q2 2019 | $637,000 | -18.3% | 5,005 | +1.0% | 0.07% | -20.9% |
| Q1 2019 | $780,000 | +54.8% | 4,955 | -2.5% | 0.09% | +28.4% |
| Q4 2018 | $504,000 | -49.2% | 5,080 | -25.3% | 0.07% | -42.7% |
| Q3 2018 | $993,000 | -6.9% | 6,800 | 0.0% | 0.12% | -14.0% |
| Q2 2018 | $1,067,000 | -4.6% | 6,800 | +3.8% | 0.14% | -3.5% |
| Q1 2018 | $1,118,000 | -4.0% | 6,550 | +0.2% | 0.14% | -7.8% |
| Q4 2017 | $1,164,000 | +29.6% | 6,535 | 0.0% | 0.15% | +30.8% |
| Q3 2017 | $898,000 | +13.4% | 6,535 | -13.3% | 0.12% | +10.4% |
| Q2 2017 | $792,000 | +15.6% | 7,535 | 0.0% | 0.11% | +12.8% |
| Q1 2017 | $685,000 | +106.9% | 7,535 | +40.3% | 0.09% | +100.0% |
| Q4 2016 | $331,000 | – | 5,370 | – | 0.05% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 82,500 | $5,090,000 | 4.20% |
| RTW INVESTMENTS, LP | 122,576 | $7,563,000 | 2.85% |
| Eventide Asset Management | 587,677 | $36,260,000 | 2.36% |
| First Light Asset Management, LLC | 71,246 | $4,396,000 | 1.93% |
| ARK Investment Management | 75,645 | $4,667,000 | 1.70% |
| Taylor Wealth Management Partners | 39,118 | $2,414,000 | 1.12% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 302,027 | $18,635,000 | 0.77% |
| ARMISTICE CAPITAL, LLC | 40,000 | $2,468,000 | 0.58% |
| Artal Group S.A. | 422,536 | $26,070,000 | 0.58% |
| TURNER INVESTMENTS LLC | 21,020 | $1,297,000 | 0.52% |