GTBP GT BIOPHARMA INC Management Changes 8-K Filing 2023 - Departure and Appointment of Directors Alan Urban resigned from GT Biopharma's Board of Directors and Charles J. Casamento was appointed to fill the vacant seat and serve as Chairman of the Audit Committee, member of the Compensation Committee, and member of the Nominating and Corporate Governance Committee.Get access to all SEC 8-K filings of the GT BIOPHARMA INC