X0206 3 2020-03-12 0 0001595248 Genprex, Inc. GNPX 0001177176 VACZY CATHERINE M 1601 TRINITY STREET BLDG B, SUITE 3.322 AUSTIN TX 78712 1 EVP & Chief Strategy Officer Stock Option (right to buy) 2.0000 2020-03-12 2030-03-11 Common Stock 540000 D 1/36 of the shares subject to the option shall vest on 3/12/20, and an additional one-thirty-sixth (1/36) of the shares subject to the option shall vest on each monthly anniversary of 03/12/20, provided that the optionee continues to serve as a Service Provider (as defined in Genprex, Inc. 2018 Equity Incentive Plan) through the applicable vesting date. /s/ Catherine M. Vaczy 2020-03-12