William Okkerse is a results-driven leader with a distinguished career in life sciences, specializing in the launch and commercialization of specialty care products across various therapeutic areas. He currently leads Global Brand Maximization and Launch Excellence for innovative medicines at Teva Pharmaceuticals, a global leader serving approximately 200 million people daily with over 3,600 medicines and 37,000 employees. Previously, he held senior leadership roles at Takeda Pharmaceuticals, including Franchise Head for Lung Cancer in the USA, Head of the Rare Disease BU Office in Japan and as member of its Global Marketing team for gastrointestinal diseases. He also held commercial roles at local and global levels at MSD and Danone/Nutricia. 

Known for his strategic mindset and collaborative leadership, William has overseen multiple successful launches and excels in cross-functional team leadership, capability building, change management, and customer engagement. 

He holds a bachelor’s degree in Management, Economics, and Law from The Hague University of Applied Sciences and has completed multiple executive leadership courses at institutions including MIT.