Clinical progress, pipeline expansion, and operational momentum underpin leadership continuity as the Company advances into 2026 and beyond SEATTLE, WA / ACCESS Newswire / February 3, 2026 / Aptevo Therapeutics Inc. (Nasdaq:APVO), a clinical-stage biotechnology company developing novel immune-oncology therapeutics based on its proprietary ADAPTIR™ and ADAPTIR-FLEX™ platform technologies, today announced executive leadership transitions to support the Company's continued execution, drive achievement of long-term strategic objectives, and next phase of growth. Effective April 1, 2026, Marvin White, who has served as President and Chief Executive Officer since 2016, has chosen to retire from this position and assume the role of Executive Chair, where he will focus on cultivating strategic opportunities to help shape long-term success.