BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 282 filers reported holding BLUEBIRD BIO INC in Q4 2019. The put-call ratio across all filers is 0.80 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2019 | $297,000 | – | 3,385 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Casdin Capital, LLC | 145,000 | $25,825,000 | 6.29% |
| Monashee Investment Management LLC | 37,500 | $6,679,000 | 2.83% |
| Eventide Asset Management | 277,603 | $49,441,000 | 2.58% |
| Redmile Group, LLC | 259,800 | $46,270,000 | 2.01% |
| MayTech Global Investments, LLC | 16,477 | $2,935,000 | 1.93% |
| First Light Asset Management, LLC | 37,838 | $6,739,000 | 1.85% |
| Atika Capital Management LLC | 26,500 | $4,720,000 | 1.82% |
| Taylor Wealth Management Partners | 22,993 | $4,095,000 | 1.74% |
| ARK Investment Management | 121,462 | $21,632,000 | 1.72% |
| Cormorant Asset Management, LP | 80,000 | $14,248,000 | 1.49% |