C4 Therapeutics(CCCC) - 2025 Q2 - Quarterly Results

Exhibit 99.1 C4 Therapeutics Reports Second Quarter 2025 Financial Results and Recent Business Highlights Cemsidomide Phase 1 Data in Multiple Myeloma Accepted as an Oral Presentation at the International Myeloma Society (IMS) Annual Meeting; As of the July 23, 2025, Data Cutof , Phase 1 ORR Remains at 40% at the 75 µg Dose Level and at 50% at the 100 µg Dose Level Productive Type C Meeting Held With FDA; Registrational Development of Cemsidomide in Multiple Myeloma on Track to Initiate in Early 2026 Precli ...