BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 179 filers reported holding BLUEBIRD BIO INC in Q2 2016. The put-call ratio across all filers is 1.01 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2017 | $1,000 | -99.4% | 12 | -99.5% | 0.00% | -100.0% |
| Q4 2016 | $159,000 | -3.6% | 2,584 | +6.0% | 0.06% | -1.7% |
| Q3 2016 | $165,000 | +38.7% | 2,437 | -11.1% | 0.06% | +7.1% |
| Q2 2016 | $119,000 | +14.4% | 2,740 | +11.6% | 0.06% | +24.4% |
| Q1 2016 | $104,000 | -22.4% | 2,455 | +17.5% | 0.04% | -35.7% |
| Q4 2015 | $134,000 | -21.6% | 2,090 | +4.9% | 0.07% | -28.6% |
| Q3 2015 | $171,000 | -72.3% | 1,993 | -45.6% | 0.10% | -67.3% |
| Q2 2015 | $617,000 | +46.9% | 3,662 | +5.4% | 0.30% | +26.1% |
| Q1 2015 | $420,000 | +38.6% | 3,476 | +5.2% | 0.24% | +5.3% |
| Q4 2014 | $303,000 | – | 3,305 | – | 0.23% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Third Rock Ventures, LLC | 3,313,974 | $78,939,000 | 22.36% |
| HARBOURVEST PARTNERS LLC | 59,264 | $1,243,000 | 3.98% |
| RA Capital Management | 467,418 | $9,806,000 | 1.14% |
| HAMILTON LANE ADVISORS LLC | 88,628 | $1,859,000 | 1.08% |
| COWEN INC. | 158,709 | $3,330,000 | 0.56% |
| SPHERA FUNDS MANAGEMENT LTD. | 92,435 | $1,939,000 | 0.54% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 423,224 | $8,879,000 | 0.46% |
| Camber Capital Management LP | 206,900 | $4,341,000 | 0.38% |
| Eventide Asset Management | 25,700 | $539,000 | 0.17% |
| SABBY MANAGEMENT, LLC | 102,035 | $2,141,000 | 0.14% |