Melinda Gates, as the co-chair of the Bill & Melinda Gates Foundation, has been actively involved in investments in AI and drug discovery companies. The foundation's commitment to global health and innovative solutions is reflected in its support for cutting-edge technologies that can revolutionize drug discovery and improve healthcare outcomes. Like her husband Bill Gates, Melinda Gates has shown a keen interest in supporting companies like Exscientia and Atomwise, which leverage AI and machine learning to accelerate drug development and address pressing health issues around the world.