BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 219 filers reported holding BLUEBIRD BIO INC in Q1 2017. The put-call ratio across all filers is 0.60 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2017 | $8,922,000 | -38.9% | 50,100 | -52.9% | 0.13% | -21.6% |
| Q3 2017 | $14,600,000 | +32.6% | 106,300 | +1.4% | 0.17% | +0.6% |
| Q2 2017 | $11,009,000 | +1395.8% | 104,800 | +1193.8% | 0.17% | +1409.1% |
| Q1 2017 | $736,000 | -76.7% | 8,100 | -82.7% | 0.01% | -89.4% |
| Q3 2016 | $3,165,000 | -29.6% | 46,700 | +74.9% | 0.10% | -84.6% |
| Q2 2015 | $4,495,000 | +300.3% | 26,700 | +187.1% | 0.68% | +526.9% |
| Q1 2015 | $1,123,000 | – | 9,300 | – | 0.11% | – |
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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% |
| Baillie Gifford | 5,164,467 | $318,647,000 | 0.52% |