X0609 4 2026-06-16 0001419041 Forte Biosciences, Inc. FBRX 0001339375 Riley Antony A false C/O FORTE BIOSCIENCES, INC. 3060 PEGASUS PARK DR., BLDG 6 DALLAS TX 75247 false true false false CHIEF FINANCIAL OFFICER 0 Stock Option (right to buy) 17.15 2026-06-16 4 A 0 22000 0 A 2036-06-16 Common Stock 22000 22000 D Subject to the Reporting Person continuing to be a Service Provider (as defined in the 2021 Equity Incentive Plan) through each applicable vesting date, one forty-eighth (1/48th) of the total shares subject to the option shall vest every month following the Vesting Commencement Date such that all shares shall be fully vested on the four (4) year anniversary of the Vesting Commencement Date. "Vesting Commencement Date" shall mean June 16, 2026. /s/ Paul A. Wagner, Ph.D., as Attorney-in-Fact 2026-06-17