As of February 2026 Summit Therapeutics has a market cap of C$16.23 Billion. This makes Summit Therapeutics the world's 1807th most valuable company by market cap according to our data. The market capitalization, commonly called market cap, is the total market value of a publicly traded company's outstanding shares and is commonly used to measure how much a company is worth.
On Feb 20th, 2026 the market cap of Summit Therapeutics was reported to be: