David Wurzer

“On February 20, 2023, David Wurzer, a member of the Board of Directors (the "Board") of Compass Therapeutics, Inc. (the "Company"), notified the Company of his resignation from the Board, and all committees thereof, for personal family reasons effective immediately.”

“On February 8, 2023, the Board of Directors (the "Board") of Compass Therapeutics, Inc. (the "Company") approved the appointment of a new director to its Board: David Wurzer, CPA, CFO of Enko Chem, Inc. The Board, upon recommendation of its Nominating and Corporate Governance Committee, appointed Mr. Wurzer as a Class III director, effective immediately to fill a vacant Class III Board seat, with a term expiring at the Company's annual meeting of stockholders in 2023.”