• C4 Therapeutics set departure of Chief Accounting Officer Mark Mossler for May 15, 2026.
• Chief Financial Officer, Head of Corporate Affairs, Treasurer Kendra R. Adams designated principal accounting officer effective May 15, 2026.
• Mossler exit not tied to any disagreement tied to financial reporting, operations, policies, or practices.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. C4 Therapeutics Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0001628280-26-035542), on May 15, 2026, and is solely responsible for the information contained therein.