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Quarterly Results Quarterly Results Show all 2021 Q1 GBT Q1 2021 Financial Results Conference Call GBT Reports First Quarter 2021 Financial Results Form 10-Q 2020 Q4 GBT Reports Recent Business Progress and Fourth Quarter and Full Year 2020 Financial Results Form 10-K Q3 GBT Reports Recent Business Progress and Third Quarter 2020 Financial Results Form 10-Q Q2 GBT Reports Recent Business Progress and Second Quarter 2020 Financial Results Form 10-Q Q1 GBT Reports Recent Business Progress and First Quarter 2020 Financial Results Form 10-Q 2019 Q4 GBT Reports Recent Business Progress and Fourth Quarter and Full Year 2019 Financial Results Form 10-K