BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 272 filers reported holding BLUEBIRD BIO INC in Q4 2020. The put-call ratio across all filers is 1.17 and the average weighting 0.1%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q4 2020 | $273,000 | -19.7% | 6,300 | 0.0% | 0.00% | – |
| Q3 2020 | $340,000 | +39.3% | 6,300 | +57.5% | 0.00% | – |
| Q2 2020 | $244,000 | -97.4% | 4,000 | -98.1% | 0.00% | -100.0% |
| Q1 2020 | $9,497,000 | -28.7% | 206,614 | +36.2% | 0.02% | +6.2% |
| Q4 2019 | $13,315,000 | +20.3% | 151,732 | +25.9% | 0.02% | -5.9% |
| Q3 2019 | $11,068,000 | -16.6% | 120,545 | +15.6% | 0.02% | +54.5% |
| Q2 2019 | $13,264,000 | -9.3% | 104,274 | +12.2% | 0.01% | -47.6% |
| Q1 2019 | $14,623,000 | +33.0% | 92,941 | -16.1% | 0.02% | +110.0% |
| Q4 2018 | $10,991,000 | -21.7% | 110,800 | +15.3% | 0.01% | -44.4% |
| Q3 2018 | $14,031,000 | +10.0% | 96,100 | +18.2% | 0.02% | 0.0% |
| Q2 2018 | $12,760,000 | +55.7% | 81,300 | +69.4% | 0.02% | +38.5% |
| Q1 2018 | $8,196,000 | – | 48,000 | – | 0.01% | – |
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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% |