X0609 4 2026-05-13 0001499422 RBB Bancorp RBB 0001179851 HOPKINS LYNN M false 1055 WILSHIRE BLVD., SUITE 1220 LOS ANGELES CA 90017 1 EVP/CFO 0 Common Stock, No Par Value 6269 D Restricted Stock Units 0.0000 Common Stock 1878 1878 D Performance Stock Units 0.0000 Common Stock 8451 8451 D Restricted Stock Units 0.0000 Common Stock 5749 5749 D Restricted Stock Units 0.0000 Common Stock 4678 4678 D Performance Stock Units 0.0000 Common Stock 10524 10524 D Performance Stock Units 0.0000 Common Stock 7987 7987 D Restricted Stock Units 0.0000 Common Stock 5325 5325 D There will be no expiration date once restricted stock units vest. These remaining restricted stock units vest on 03/20/2027. These performance stock units ("PSUs") will vest conditionally on the achievement of certain performance goals and an employment condition. The reported PSUs will vest at the expiration of a three-year period beginning on 03/20/2024 subject to the Reporting Person's satisfaction of the employment condition. These remaining restricted stock units vest in three equal annual installments on 04/22/2027, 04/22/2028 and 04/22/2029. These remaining restricted stock units vest in two equal annual installments on 05/08/2027 and 05/08/2028. Performance Stock Units ("PSUs") to vest conditionally on the achievement of certain performance goals and an employment condition. The PSUs are awarded at a target level and have the opportunity to vest at 150% of such target level; The reported PSUs represent the maximum award that may be achieved and ultimately vest. The reported PSUs will vest at the expiration of a three-year period beginning on 05/08/2025 subject to the Reporting Person's satisfaction of the employment condition. Performance Stock Units ("PSUs") to vest conditionally on the achievement of certain performance goals to occur after December 31, 2028, and before March 14, 2029, and an employment condition. The PSUs are awarded at a target level and have the opportunity to vest at 150% of such target level; The reported PSUs represent the maximum award that may be achieved and ultimately vest. The reported PSUs will vest at the certification by the Board of Directors subject to the Reporting Person's satisfaction of the employment condition. These restricted stock units vest in three equal annual installments beginning one year after the 05/13/2026 date of grant. Restricted Stock Units (RSUs) and a maximum amount Performance Stock Units (PSUs) were granted on May 13, 2026 /s/ Lynn Hopkins 2026-05-15