X0306 4 2022-08-11 0 0001626971 Corvus Pharmaceuticals, Inc. CRVS 0001413306 Grais Linda C/O CORVUS PHARMACEUTICALS, INC. 863 MITTEN ROAD, SUITE 102 BURLINGAME CA 94010 1 0 0 0 Stock Option (Right to Buy) 0.965 2022-08-11 4 A 0 15000 0.00 A 2032-08-11 Common Stock 15000 15000 D The underlying shares subject to the option vest and become exercisable as to one-twelfth (1/12th) of the shares subject to the option in successive, equal monthly installments measured from August 11, 2022, subject to Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Leiv Lea, as Attorney-in-Fact for Linda S. Grais 2022-08-15