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 | ||||
|---|---|---|---|---|---|---|
| Q3 2018 | $949,000 | +11.9% | 6,500 | +20.4% | 0.37% | +3.9% |
| Q2 2018 | $848,000 | -17.3% | 5,400 | -10.0% | 0.36% | -18.5% |
| Q1 2018 | $1,025,000 | +28.0% | 6,000 | +33.3% | 0.44% | +34.5% |
| Q4 2017 | $801,000 | +29.6% | 4,500 | 0.0% | 0.32% | +22.6% |
| Q3 2017 | $618,000 | +30.7% | 4,500 | 0.0% | 0.26% | +26.2% |
| Q2 2017 | $473,000 | – | 4,500 | – | 0.21% | – |
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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% |