0001599298 2026-07-23 2026-07-23 false 0001599298 8-K 2026-07-23 Summit Therapeutics Inc. DE 001-36866 37-1979717 601 Brickell Key Drive Suite 1000 Miami FL 33131 (650) 460-8308 false false false false Common stock, $0.01 par value per share SMMT NASDAQ false