About Takeda Oncology

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Dion Warren

Head, US Oncology Business Unit


“At Takeda Oncology, we’re all driven by the same aspiration – finding a cure for cancer. I am inspired every day by the passion, innovation and unwavering commitment to impact patients’ and families’ lives.”


Dion Warren is Head of the US Oncology Business Unit (US OBU) at Takeda Pharmaceuticals and serves as a member of the Global Oncology Leadership Team. In his role today, Dion leads Takeda’s efforts in the US to accelerate our capabilities, culture and commercialization of our medicines with life-transforming potential.

During his 20 years at Takeda, Dion has held several global and diverse roles with increasing responsibility and was a key leader in the acquisition of Millennium. Prior to becoming Head of the US OBU, Dion was Head of the Europe and Canada OBU based in Zurich, where he played a leading role in successfully globalizing Takeda Oncology. Dion also served as Head of Oncology for Emerging Markets based in Singapore, where he built the oncology team and business across approximately 50 countries and helped develop Takeda’s industry-leading Access to Medicines program. Beyond these leadership positions, Dion has also worked in various critical roles across Takeda Corporate Strategy, Business Development, Marketing, Investor Relations, and Financial Planning & Analysis.

Dion holds Bachelor of Science degree in Finance and Real Estate from Florida State University.