X0508 4 2023-10-23 0 0001662774 Quince Therapeutics, Inc. QNCX 0001991537 Janhofer Guenter C/O QUINCE THERAPEUTICS, INC. 601 GATEWAY BOULEVARD, SUITE 1250 SOUTH SAN FRANCISCO CA 94080 0 1 0 0 Chief Scientific Officer 0 Employee Stock Option (right to buy) 0.99 2023-10-23 4 A 0 300000 0.00 A 2033-10-22 Common Stock 300000 300000 D Twenty-five percent of the shares subject to the stock option vests on the first anniversary of the grant date of October 23, 2023, and the remainder vests in 36 equal monthly installments thereafter for the following three years, subject to the Reporting Person's continuous service as the officer of the Issuer as of each such date. /s/ Brendan Hannah, Attorney-in-Fact for Guenter Janhofer, M.D., Ph.D. 2023-10-24