Tranche Update on Champions Oncology, Inc.'s Equity Buyback Plan announced on April 5, 2023.

Champions Oncology, Inc. is a technology-enabled research organization engaged in creating transformative technology solutions to be utilized in drug discovery and development. The Company's research center operates in both regulatory and non-regulatory environments and consists of a comprehensive set of computational and experimental research platforms. The Company’s TumorGraft Technology Platform (The Platform) provides select services to pharmaceutical and biotechnology companies. Its software as-a-service business is centered around its software platform and data tool, Lumin Bioinformatics (Lumin), which contains comprehensive information derived from its research services and clinical studies. Its drug discovery and development business leverage the computational and experimental capabilities within its platforms. Its discovery strategy utilizes its datacenter, coupled with artificial intelligence and other advanced computational analytics, to identify therapeutic targets.