Alex Knaster

Alex Knaster Recognized Among The 100 Most Influential People in Oncology in 2025

Alex Knaster is a global investor and philanthropist whose leadership has rapidly positioned The Mark Foundation for Cancer Research as one of the most consequential private funders of innovative cancer science worldwide. Named after his late father Mark Knaster who passed away from cancer, Knaster has committed more than a billion dollars to advancing high-risk, high-impact cancer research.

Under his leadership, The Mark Foundation has built a distinctive model focused on empowering exceptional scientists and interdisciplinary teams. In fewer than five years, the Foundation awarded over 300 research grants totaling $275 million to investigators at more than 80 academic institutions globally, while also making strategic investments exceeding $20 million in oncology-focused biotechnology startups to help bridge the gap between discovery and patient-ready innovation. Its funding strategy prioritizes bold scientific ideas that may fall outside traditional funding mechanisms, enabling progress in prevention, early detection, and treatment.

The 100 Most Influential People in Oncology in 2025 recognizes the changemakers in cancer care who have helped shape current practice in oncology and continue to drive innovation and research towards better outcomes, advocacy, philanthropy, leadership and education. For the many deserving individuals not mentioned in this list, we will continue to acknowledge, honor and elevate your voices in our daily publications from across the world.

See the full list of The 100 Influential People in Oncology in 2025 and stay tuned for the results of special category nominations to be announced.

James P. Allison