Aditum Bio
Biotechnology ResearchCalifornia, United States51-200 Employees
Aditum Bio is a biotechnology research company and venture capital firm based in Oakland, California, employing a workforce of about 51 to 200 people. It describes itself as a new model of biotech venture capital that translates scientific discoveries into medicines by combining scientific and domain expertise with operational capabilities to accelerate drug development. Founded in 2019 by former Novartis CEO Joe Jimenez and former President of the Novartis Institutes for BioMedical Research, Dr. Mark Fishman, the firm manages a broad portfolio of clinical-stage companies pursuing therapies across diverse areas. The organization emphasizes an agile, collaborative approach to rapid company formation, planning, and execution, guided by its values of patient-centricity, collaboration, curiosity, and courage. Recent activities include launching Kalexo Bio in September 2025 with an exclusive global license to develop a dual-target siRNA candidate for lipid management and ASCVD risk prevention, forming Oblenio Bio in November 2024 to develop tri-specific T-cell engagers for autoimmune disorders, and establishing Celexor Bio in 2023 in partnership with Inmagene to pursue autoimmune therapy programs such as LBL-051 with Leads Biolabs.