 Cambridge, MA, May 5, 2021 - Summit Therapeutics Inc. NASDAQ: SMMT today announced that it is nearing the previously-announced expiration date for its rights offering of 5:00 pm Eastern Daylight Time on May 10, 2021 the Expiration Date. Importantly, for stockholders whose shares of our common stock are held in a brokerage account or are otherwise not registered directly with the Company, the deadline to exercise their subscription rights with their respective brokerage firms may be as soon as today, Wednesday May 5. Examples of brokerage firms with whom shareholders may have accounts include ETRADE, Charles Schwab, and other personal, financial, or online brokers. Information regarding specific broker-related deadlines can be obtained directly from the broker. 