CCCC ▲ +0.7% - C4 Therapeutics, Inc. $CCCC - C4 Therapeutics Presents New Biomarker Data from the Cemsidomide Phase 1 Trial with Dexamethasone and Phase 1b Trial with Elranatamab (ELREXFIO®) in Relapsed/Refractory Multiple Myeloma at the 23rd International Myeloma Society (IMS) Annual Meeting 25-SEP-2026 07:00 AM ET