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 | ||||
|---|---|---|---|---|---|---|
| Q2 2018 | $6,703,000 | +22.4% | 42,705 | +33.1% | 0.47% | +20.2% |
| Q1 2018 | $5,477,000 | -72.9% | 32,076 | -71.7% | 0.39% | -41.1% |
| Q4 2017 | $20,184,000 | +106.0% | 113,324 | +58.9% | 0.67% | -1.6% |
| Q3 2017 | $9,797,000 | +85.8% | 71,329 | +42.1% | 0.68% | +81.5% |
| Q2 2017 | $5,273,000 | +57.2% | 50,183 | +36.1% | 0.37% | +58.1% |
| Q1 2017 | $3,354,000 | +2.1% | 36,873 | -30.7% | 0.24% | -5.2% |
| Q4 2016 | $3,284,000 | -2.8% | 53,187 | +6.7% | 0.25% | +10.7% |
| Q3 2016 | $3,379,000 | +558.7% | 49,855 | +312.9% | 0.22% | +508.1% |
| Q1 2016 | $513,000 | -56.4% | 12,075 | -34.1% | 0.04% | -54.3% |
| Q4 2015 | $1,177,000 | -55.0% | 18,329 | -40.1% | 0.08% | -56.9% |
| Q3 2015 | $2,617,000 | -71.6% | 30,587 | -44.1% | 0.19% | -68.1% |
| Q2 2015 | $9,219,000 | +90.8% | 54,755 | +36.8% | 0.59% | +95.4% |
| Q1 2015 | $4,833,000 | +167.2% | 40,020 | +102.9% | 0.30% | +167.3% |
| Q4 2014 | $1,809,000 | – | 19,727 | – | 0.11% | – |
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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% |