DOWNTOWN RIVERSIDE, CA. SEPTEMBER 2, 2025 - AMERICAN BUSINESS BANK (OTCQX: AMBZ) today is proud to announce the opening of its new Loan Production Office (LPO) in Downtown Riverside. The new office is located at 3801 University Ave., Suite 640 and marks a significant expansion of ABB’s footprint across Southern California. In addition, the Bank has also promoted David R. Valenzuela to Regional Vice President, to lead the new regional LPO office.

LOS ANGELES, APRIL 25, 2025 - AMERICAN BUSINESS BANK (OTCQX: AMBZ) (the “Bank”) today announced that its Board of Directors has declared a regular quarterly cash dividend on its common stock of $0.25 per share. The dividend is expected to be paid June 17, 2025 to shareholders of record as of May 7, 2025. At this quarterly dividend rate, the annual dividend is equivalent to $1.00 per common share.

LOS ANGELES, FEBRUARY 12, 2025 - AMERICAN BUSINESS BANK (OTCQX: AMBZ) (the “Bank”) today proudly announced that its Board of Directors has declared its first quarterly cash dividend on its common stock of $0.25 per share. The dividend is expected to be paid March 17, 2025 to shareholders of record as of February 24, 2025.

LOS ANGELES, FEBRUARY 5, 2025 –AMERICAN BUSINESS BANK (ABB) (OTCQX: AMBZ) was ranked in S&P Global Market Intelligence’s inaugural deposit rankings of institutions with assets between $3 billion and $10 billion as of September 30, 2024. According to the listing, ABB is ranked 9th of the top 225 banks across the country for 2024.

Los Angeles, California, January 14, 2025. AMERICAN BUSINESS BANK (OTCQX: AMBZ) (the “Bank”) today announced that its Board of Directors adopted a stock repurchase program (the “Stock Buy Back Program”) under which the Bank is authorized to repurchase up to 227,541 shares, or 2.5% of the Bank’s issued and outstanding common stock. This is the Bank’s first stock repurchase program.