X0306 4 2016-12-07 0 0001626971 Corvus Pharmaceuticals, Inc. CRVS 0001664488 Verner Erik J. C/O CORVUS PHARMACEUTICALS, INC. 863 MITTEN ROAD, SUITE 102 BURLINGAME CA 94010 0 1 0 0 V.P., Chemistry Research Stock Option (Right to Buy) 16.37 2016-12-07 4 A 0 25000 0 A 2026-12-07 Common Stock 25000 25000 D The underlying shares subject to the option vest and become exercisable as to one-forty-eighth (1/48th) of the shares subject to the option in successive, equal monthly installments measured from December 7, 2016, subject to Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Erik J. Verner, Ph.D. 2016-12-07