IMGN - Immunogen Inc (IMGN) Q4 2020 Earnings Call Transcript February, 12 2021 11:30 AM ImmunoGen Inc. Image source: The Motley Fool. Immunogen Inc (NASDAQ: IMGN) Q4 2020 Earnings Call Feb 12, 2021 , 8:00 a.m. ET Operator Continue reading For further details see: Immunogen Inc (IMGN) Q4 2020 Earnings Call Transcript