X0206 3 2019-05-31 0 0001499422 RBB Bancorp RBB 0001778913 Kao Christina 9278 W RUSSELL ROAD #207 LAS VEGAS NV 89148 1 0 0 0 0001711522 Kao James 1055 WILSHIRE BLVD SUITE 1200 LOS ANGELES CA 90017 1 0 0 0 Common Stock, No Par Value 190063 D Christina joined the Board of Directors in May. Shares are jointly owned by both director Christina Kao and director James Kao as of 06/05/2019. Shalom Chang 2019-06-05