BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 196 filers reported holding BLUEBIRD BIO INC in Q4 2015. The put-call ratio across all filers is 1.25 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2021 | $0 | – | 25 | 0.0% | 0.00% | – |
| Q3 2021 | $0 | -100.0% | 25 | 0.0% | 0.00% | – |
| Q2 2021 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q1 2021 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q4 2020 | $1,000 | 0.0% | 25 | 0.0% | 0.00% | – |
| Q3 2020 | $1,000 | 0.0% | 25 | +56.2% | 0.00% | – |
| Q1 2020 | $1,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q3 2019 | $1,000 | -50.0% | 16 | 0.0% | 0.00% | – |
| Q2 2019 | $2,000 | 0.0% | 16 | 0.0% | 0.00% | – |
| Q4 2018 | $2,000 | 0.0% | 16 | 0.0% | 0.00% | -100.0% |
| Q3 2017 | $2,000 | -100.0% | 16 | -94.9% | 0.00% | -66.7% |
| Q4 2016 | $19,000,000 | +126566.7% | 316 | +46.3% | 0.00% | 0.0% |
| Q3 2016 | $15,000 | +400.0% | 216 | +260.0% | 0.00% | +200.0% |
| Q4 2015 | $3,000 | -25.0% | 60 | +9.1% | 0.00% | 0.0% |
| Q3 2015 | $4,000 | -90.5% | 55 | -78.4% | 0.00% | -92.9% |
| Q2 2015 | $42,000 | +75.0% | 255 | +27.5% | 0.01% | +75.0% |
| Q1 2015 | $24,000 | +33.3% | 200 | 0.0% | 0.01% | +33.3% |
| Q4 2014 | $18,000 | +157.1% | 200 | 0.0% | 0.01% | +500.0% |
| Q3 2014 | $7,000 | 0.0% | 200 | 0.0% | 0.00% | -75.0% |
| Q2 2014 | $7,000 | – | 200 | – | 0.00% | – |
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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% |