Mary Thistle has served on Aktis Oncology's board of directors since January 2025. She previously served as Special Advisor and earlier Chief of Staff at the Bill & Melinda Gates Medical Research Institute, and held senior leadership positions including Chief Operating Officer at Dimension Therapeutics and business development leadership roles at Cubist Pharmaceuticals. She currently serves on the boards of Cullinan Therapeutics, Q32 Bio, Entrada Therapeutics and Vigil Neuroscience.