Management Change/Compensation (Form 8-K)

Item 5.02 Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers.

In connection with an internal realignment of various management roles and responsibilities, on October 15, 2025, the Board of Directors (the "Board") of Dynavax Technologies Corporation (the "Company") approved the transition of David F. Novack from his roles as the Company's President and Chief Operating Officer to his new roles as Senior Vice President and Chief Operating Officer, effective January 1, 2026. The Board also approved the removal of Robert Janssen, M.D.'s roles as Chief Medical Officer and Senior Vice President, Clinical Development, Medical and Regulatory Affairs, effective upon the earlier to occur of (a) the date the Company employs a new Chief Medical Officer and (b) March 2, 2026, and further approved the conclusion of Dr. Janssen's employment as of March 2, 2026.

The Company has commenced a search process for a successor Chief Medical Officer.