Lloyd M. Segal has served on Aktis Oncology's board of directors since February 2021. He is the co-founder of Repare Therapeutics, where he served as President and Chief Executive Officer from its incorporation in 2016 through April 2025, and previously was a Managing Partner at Persistence Capital Partners and Entrepreneur-in-Residence at Versant Ventures. He received a BA in Politics from Brandeis University and an MBA from Harvard Business School.