X0306 4 2022-08-11 0 0001626971 Corvus Pharmaceuticals, Inc. CRVS 0000939012 LEA LEIV C/O CORVUS PHARMACEUTICALS, INC. 863 MITTEN ROAD, SUITE 102 BURLINGAME CA 94010 0 1 0 0 Chief Financial Officer Stock Option (Right to Buy) 0.965 2022-08-11 4 A 0 160000 0.00 A 2032-08-11 Common Stock 160000 160000 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 August 11, 2022, subject to Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Leiv Lea 2022-08-15