BLUEBIRD BIO INC's ticker is BLUE and the CUSIP is 09609G100. A total of 303 filers reported holding BLUEBIRD BIO INC in Q4 2017. The put-call ratio across all filers is 0.85 and the average weighting 0.2%.
Quarter-by-quarter ownership
| Value | Shares | Weighting | ||||
|---|---|---|---|---|---|---|
| Q1 2022 | $4,000 | -33.3% | 844 | +164.6% | 0.00% | 0.0% |
| Q3 2021 | $6,000 | +50.0% | 319 | +175.0% | 0.00% | 0.0% |
| Q2 2021 | $4,000 | – | 116 | +1188.9% | 0.00% | – |
| Q1 2020 | $0 | -100.0% | 9 | 0.0% | 0.00% | – |
| Q4 2019 | $1,000 | 0.0% | 9 | 0.0% | 0.00% | – |
| Q3 2019 | $1,000 | 0.0% | 9 | 0.0% | 0.00% | – |
| Q2 2019 | $1,000 | -50.0% | 9 | -18.2% | 0.00% | -100.0% |
| Q1 2019 | $2,000 | +100.0% | 11 | 0.0% | 0.00% | – |
| Q4 2018 | $1,000 | -50.0% | 11 | -8.3% | 0.00% | -100.0% |
| Q3 2018 | $2,000 | 0.0% | 12 | -20.0% | 0.00% | 0.0% |
| Q2 2018 | $2,000 | 0.0% | 15 | +36.4% | 0.00% | 0.0% |
| Q1 2018 | $2,000 | 0.0% | 11 | 0.0% | 0.00% | 0.0% |
| Q4 2017 | $2,000 | 0.0% | 11 | 0.0% | 0.00% | 0.0% |
| Q3 2017 | $2,000 | +100.0% | 11 | 0.0% | 0.00% | 0.0% |
| Q2 2017 | $1,000 | 0.0% | 11 | 0.0% | 0.00% | 0.0% |
| Q1 2017 | $1,000 | 0.0% | 11 | 0.0% | 0.00% | 0.0% |
| Q4 2016 | $1,000 | -87.5% | 11 | -90.1% | 0.00% | -75.0% |
| Q3 2016 | $8,000 | +60.0% | 111 | 0.0% | 0.00% | +33.3% |
| Q2 2016 | $5,000 | – | 111 | +909.1% | 0.00% | – |
| Q1 2016 | $0 | -100.0% | 11 | +37.5% | 0.00% | -100.0% |
| Q4 2015 | $1,000 | – | 8 | – | 0.00% | – |
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Other shareholders
| Name | Shares | Value | Weighting ↓ |
|---|---|---|---|
| ARMISTICE CAPITAL, LLC | 1,964,000 | $59,215,000 | 1.36% |
| Birchview Capital, LP | 75,500 | $2,276,000 | 1.35% |
| Camber Capital Management LP | 1,000,000 | $30,150,000 | 1.04% |
| Sessa Capital IM, L.P. | 875,000 | $26,381,000 | 1.02% |
| Bain Capital Life Sciences Investors, LLC | 538,179 | $16,226,000 | 0.92% |
| Tarsadia Capital, LLC | 100,000 | $3,015,000 | 0.81% |
| Bullseye Asset Management LLC | 67,872 | $2,046,000 | 0.76% |
| SUVRETTA CAPITAL MANAGEMENT, LLC | 1,304,246 | $39,323,000 | 0.58% |
| MANGROVE PARTNERS IM, LLC | 175,178 | $5,282,000 | 0.53% |
| Parametrica Management Ltd | 37,712 | $1,080,000 | 0.52% |