BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 172 filers reported holding BLUEBIRD BIO INC in Q4 2014. The put-call ratio across all filers is 0.23 and the average weighting 0.4%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2017 | $509,000 | -68.1% | 5,600 | -78.4% | 0.02% | -55.3% |
| Q4 2016 | $1,597,000 | -49.2% | 25,893 | -44.1% | 0.04% | -39.7% |
| Q3 2016 | $3,142,000 | +401.9% | 46,345 | +220.6% | 0.06% | +472.7% |
| Q2 2016 | $626,000 | -2.9% | 14,457 | -4.6% | 0.01% | -8.3% |
| Q1 2016 | $645,000 | -53.0% | 15,161 | -29.1% | 0.01% | -14.3% |
| Q4 2015 | $1,372,000 | -35.8% | 21,375 | -14.5% | 0.01% | -30.0% |
| Q3 2015 | $2,138,000 | -19.6% | 24,998 | +58.2% | 0.02% | -16.7% |
| Q2 2015 | $2,660,000 | +425.7% | 15,800 | +277.0% | 0.02% | +500.0% |
| Q1 2015 | $506,000 | -50.9% | 4,191 | -62.7% | 0.00% | -42.9% |
| Q4 2014 | $1,031,000 | +40.1% | 11,234 | -45.2% | 0.01% | +75.0% |
| Q3 2014 | $736,000 | – | 20,489 | – | 0.00% | – |
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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% |