BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 282 filers reported holding BLUEBIRD BIO INC in Q4 2019. The put-call ratio across all filers is 0.80 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q3 2020 | $117,000 | -28.2% | 2,171 | -18.6% | 0.01% | -28.6% |
| Q2 2020 | $163,000 | +44.2% | 2,666 | +8.1% | 0.01% | +16.7% |
| Q1 2020 | $113,000 | -49.6% | 2,467 | -3.2% | 0.01% | -33.3% |
| Q4 2019 | $224,000 | -46.4% | 2,549 | -44.0% | 0.01% | -47.1% |
| Q3 2019 | $418,000 | -26.9% | 4,552 | +1.3% | 0.02% | -22.7% |
| Q2 2019 | $572,000 | +4.4% | 4,493 | +29.1% | 0.02% | +15.8% |
| Q1 2019 | $548,000 | – | 3,480 | – | 0.02% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| Sessa Capital IM, L.P. | 1,834,965 | $35,066,000 | 1.72% |
| Birchview Capital, LP | 84,000 | $1,605,000 | 1.09% |
| ARMISTICE CAPITAL, LLC | 2,472,000 | $47,240,000 | 0.80% |
| EcoR1 Capital, LLC | 802,507 | $15,336,000 | 0.53% |
| Parametrica Management Ltd | 36,919 | $706,000 | 0.53% |
| Bain Capital Life Sciences Investors, LLC | 538,179 | $7,239,000 | 0.45% |
| APPLETON GROUP, LLC | 19,495 | $373,000 | 0.32% |
| MANGROVE PARTNERS IM, LLC | 175,587 | $3,355,000 | 0.30% |
| Quinn Opportunity Partners LLC | 230,100 | $4,397,000 | 0.28% |
| PDT Partners, LLC | 171,700 | $3,281,000 | 0.24% |