BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 294 filers reported holding BLUEBIRD BIO INC in Q3 2018. The put-call ratio across all filers is 0.85 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $8,000 | -20.0% | 148 | -13.5% | 0.00% | -40.0% |
| Q2 2020 | $10,000 | -83.9% | 171 | -75.8% | 0.01% | -82.8% |
| Q4 2019 | $62,000 | +72.2% | 708 | +80.6% | 0.03% | +107.1% |
| Q3 2019 | $36,000 | +350.0% | 392 | +532.3% | 0.01% | +366.7% |
| Q2 2019 | $8,000 | +166.7% | 62 | +226.3% | 0.00% | +200.0% |
| Q1 2019 | $3,000 | -87.5% | 19 | -92.2% | 0.00% | -85.7% |
| Q4 2018 | $24,000 | +166.7% | 244 | +275.4% | 0.01% | +250.0% |
| Q3 2018 | $9,000 | +800.0% | 65 | +622.2% | 0.00% | – |
| Q2 2018 | $1,000 | -92.9% | 9 | -89.2% | 0.00% | -100.0% |
| Q1 2018 | $14,000 | – | 83 | – | 0.01% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| AlpInvest Partners B.V. | 46,264 | $3,958,000 | 7.80% |
| RTW INVESTMENTS, LP | 151,594 | $12,969,000 | 4.03% |
| APIS CAPITAL ADVISORS, LLC | 30,870 | $2,640,000 | 3.65% |
| Parametrica Management Ltd | 4,084 | $349,000 | 2.20% |
| Eventide Asset Management | 419,600 | $35,897,000 | 2.09% |
| RA Capital Management | 167,367 | $14,318,000 | 2.06% |
| DEERFIELD MANAGEMENT COMPANY, L.P. (SERIES C) | 483,000 | $41,321,000 | 1.60% |
| Taylor Wealth Management Partners | 38,184 | $3,267,000 | 1.58% |
| Orbimed Advisors | 1,188,900 | $101,710,000 | 1.03% |
| CABOT WEALTH MANAGEMENT INC | 34,195 | $2,925,000 | 0.81% |