BIIB - Biogen (BIIB) Q4 2023 Earnings Call Transcript February, 13 2024 02:45 PM Biogen Inc. 2024-02-13 14:45:17 ET Image source: The Motley Fool. Biogen (NASDAQ: BIIB) Q4 2023 Earnings Call Feb 13, 2024 , 8:00 a.m. ET Operator Continue reading For further details see: Biogen (BIIB) Q4 2023 Earnings Call Transcript