SUMMIT THERAPEUTICS INC., DEFA14A filed on 4/17/2026
Additional Proxy Soliciting Materials (definitive)
v3.26.1
Cover
12 Months Ended
Dec. 31, 2025
Document Information [Line Items]  
Document Type DEFA14A
Amendment Flag false
Entity Information [Line Items]  
Entity Registrant Name SUMMIT THERAPEUTICS INC.
Entity Central Index Key 0001599298