X0508 4 2025-12-04 0001626971 Corvus Pharmaceuticals, Inc. CRVS 0002010430 Arcara Jeffrey C/O CORVUS PHARMACEUTICALS, INC. 901 GATEWAY BOULEVARD, THIRD FLOOR SOUTH SAN FRANCISCO CA 94080 true Chief Business Officer false Stock Option (Right to Buy) 8.81 2025-12-04 4 A 0 100000 0 A 2035-12-04 Common Stock 100000 100000 D The underlying shares subject to the option vest and become exercisable as to 1/36th of the shares subject to the option in successive, equal monthly installments measured from December 4, 2025, subject to Reporting Person's continued service relationship with the Issuer on each such vesting date. /s/ Leiv Lea, as Attorney-in-Fact for Jeffrey Arcara 2025-12-08