BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 298 filers reported holding BLUEBIRD BIO INC in Q1 2019. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2020 | $5,000 | -44.4% | 104 | 0.0% | 0.00% | 0.0% |
| Q4 2019 | $9,000 | -99.6% | 104 | -99.5% | 0.00% | -99.7% |
| Q3 2019 | $2,046,000 | -48.3% | 22,285 | -28.3% | 0.35% | -36.1% |
| Q2 2019 | $3,954,000 | -24.0% | 31,085 | -6.0% | 0.55% | -15.2% |
| Q1 2019 | $5,205,000 | +17.2% | 33,085 | -26.1% | 0.65% | +21.5% |
| Q4 2018 | $4,443,000 | -21.0% | 44,785 | +16.3% | 0.54% | -0.2% |
| Q3 2018 | $5,621,000 | +44.2% | 38,500 | +55.1% | 0.54% | +36.0% |
| Q2 2018 | $3,897,000 | +21.5% | 24,830 | +32.2% | 0.39% | +27.9% |
| Q1 2018 | $3,208,000 | – | 18,786 | – | 0.31% | – |
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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% |