Results of Operations and Financial Condition. On July 20, 2026, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended June 30, 2026, and information relating to the Company’s quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein. The information furnished under

Other Events. Common Stock Repurchase Plan Authorization The Board of Directors of RBB Bancorp (the “Company”) has authorized the repurchase of up to 1 million shares of the Company’s outstanding common stock through June 30, 2028 (the “Repurchase Plan”). The Repurchase Plan represents a dollar amount of approximately $25 million, based on the Company’s current stock price, and represents approximately 6% of the Company’s current outstanding shares. The Repurchase Plan permits shares to be pu…

Results of Operations and Financial Condition. On April 20, 2026, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended March 31, 2026, and information relating to the Company’s quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein. The information furnished under

Director — Dr. Christopher Lin, Ph.D: Dr. Christopher Lin is retiring from the Board and Bank Board effective at the 2026 Annual Meeting of Shareholders.

Results of Operations and Financial Condition. On January 26, 2026, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter and fiscal year ended December 31, 2025, and information relating to the Company’s quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein. The information furnished under

Results of Operations and Financial Condition. On October 20, 2025, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended September 30, 2025, and information relating to the Company’s quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is incorporated by reference herein. The information furnished under

Results of Operations and Financial Condition. On July 21, 2025, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended June 30, 2025, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Other Events. On May 29, 2025, RBB Bancorp, a California Corporation (the “Company”) announced that its Board of Directors authorized a stock repurchase plan providing for the repurchase of up to $18 million of the Company’s outstanding common stock through June 30, 2026. The timing, price and volume of repurchases will be based on market, price and business conditions, relevant securities laws and other factors. The stock repurchases may be made from time to time, through solicited or unsoli…

Results of Operations and Financial Condition. On April 28, 2025, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended March 31, 2025, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Chief Executive Officer — David Morris: Mr. David Morris is retiring as the Chief Executive Officer following the next annual meeting of shareholders.

Results of Operations and Financial Condition. On February 3, 2025, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter and fiscal year ended December 31, 2024, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

null — Mr. Mina Rizkalla: The company entered into an employment agreement with Mr. Mina Rizkalla, effective January 1, 2025.

Amendments to existing employment agreements for multiple executives.

Results of Operations and Financial Condition. On October 21, 2024, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended September 30, 2024, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Results of Operations and Financial Condition. On July 22, 2024, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended June 30, 2024, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Senior Vice President and Chief Accounting Officer — Diana Hanson: Ms. Diana Hanson was appointed as Senior Vice President and Chief Accounting Officer.

Chair of the Board of Directors — Ms. Christina Kao: Ms. Christina Kao was elected as the new Chair of the Board of Directors.

Results of Operations and Financial Condition. On April 22, 2024, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter ended March 31, 2024, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Other Events. On April 22, 2024, in conjunction with press release setting forth the financial results for the quarter ended March 31, 2024, the Company announced the appointment of Ms. Lynn Hopkins as the permanent Executive Vice President and Chief Financial Officer of the Company and the Bank effective April 22, 2024. A copy of this press release is attached hereto as Exhibit 99.1. On April 18, 2024, RBB Bancorp announced that its Board of Directors declared a cash dividend of $0.16 per sh…

Executive Vice President and Chief Financial Officer — Lynn M. Hopkins: Ms. Lynn M. Hopkins was promoted to permanent Executive Vice President and Chief Financial Officer with a new employment agreement.

Amendments to employment agreements for senior executives.

Other Events. On February 29, 2024, the Company announced that the Board of Directors of RBB Bancorp, a California corporation (the “Company”) authorized a stock repurchase plan providing for the repurchase of up to 1 million shares of the Company’s outstanding common stock through March 31, 2026. The timing, price and volume of repurchases will be based on market, price and business conditions, relevant securities laws and other factors. The stock repurchases may be made from time to time, t…

Results of Operations and Financial Condition. On January 22, 2024, RBB Bancorp (the “Company”) issued a press release setting forth the financial results for the quarter and fiscal year ended December 31, 2023, and information relating to our quarterly conference call and webcast. A copy of this press release is attached hereto as Exhibit 99.1 and is hereby incorporated by reference. The information furnished under

Interim Executive Vice President and Chief Financial Officer — Lynn M. Hopkins: Ms. Lynn M. Hopkins was appointed as Interim Executive Vice President and Chief Financial Officer, replacing Mr. Alex Ko who resigned due to personal reasons.

Other Events. Effective October 25, 2023, Royal Business Bank (the “ Bank ”), the wholly-owned subsidiary of RBB Bancorp (the “ Company ”), entered into a Stipulation to the Issuance of a Consent Order (the “ Stipulation ”) with the Federal Deposit Insurance Corporation (the “ FDIC ”) and the California Department of Financial Protection and Innovation (the “ DFPI ”), consenting to the issuance of a consent order (the “ Consent Order ”) relating to the Bank’s Anti-Money Laundering/Countering…