BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 207 filers reported holding BLUEBIRD BIO INC in Q3 2016. The put-call ratio across all filers is 1.20 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $39,456,000 | -20.6% | 221,541 | -38.8% | 0.40% | -29.4% |
| Q3 2017 | $49,697,000 | +9.9% | 361,825 | -15.9% | 0.56% | +0.9% |
| Q2 2017 | $45,220,000 | +21.5% | 430,462 | +5.2% | 0.56% | +10.2% |
| Q1 2017 | $37,205,000 | +33.0% | 409,295 | -9.7% | 0.51% | +14.9% |
| Q4 2016 | $27,972,000 | +4.0% | 453,354 | +14.2% | 0.44% | -9.6% |
| Q3 2016 | $26,902,000 | +10.9% | 396,897 | -29.1% | 0.49% | -0.4% |
| Q2 2016 | $24,249,000 | +14.1% | 560,164 | +12.0% | 0.49% | +4.0% |
| Q1 2016 | $21,261,000 | +33.3% | 500,253 | +101.4% | 0.47% | +8.3% |
| Q4 2015 | $15,948,000 | +5636.7% | 248,328 | +14950.2% | 0.44% | +6128.6% |
| Q2 2015 | $278,000 | -41.4% | 1,650 | -86.6% | 0.01% | -50.0% |
| Q2 2014 | $474,000 | – | 12,300 | – | 0.01% | – |
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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% |