LOS ANGELES, December 26, 2025- AMERICAN BUSINESS BANK (OTCQX: AMBZ) (the “ABB”) is proud to announce the promotion of Trey Weatherill to Regional Vice President of the Inland Empire Region in Ontario, California.

LOS ANGELES, CA December 19, 2025 - AMERICAN BUSINESS BANK (OTCQX: AMBZ) announces the promotion of Eric Dole and Chris Basirico to Executive Vice President, Corporate Banking. “We are excited about what the future holds for ABB,” said Leon Blankstein, CEO and Director of ABB. “These additions to our already dynamic executive leadership will continue our momentum. Their exemplary performance and commitment to excellence have been evident for years at our organization. Eric and Chris are each consummate professionals, embodying the ABB culture, and desire to see others succeed. I am eager to see their impact as they step into this next role.”

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.

SAN DIEGO, CA. DECEMBER 17, 2024 - AMERICAN BUSINESS BANK (OTCQX: AMBZ) today announced its further expansion with the addition of its San Diego Regional Office. The new office is located at 4727 Executive Drive, Suite 275, in San Diego, California.

LOS ANGELES, JUNE 22, 2023- AMERICAN BUSINESS BANK (OTCQX: AMBZ) today proudly welcomes Daniel Lykken to the Bank where he will serve as Regional Executive Vice President of the San Fernando Valley Regional office.

Today AMERICAN BUSINESS BANK (OTCQX: AMBZ) is proud to announce the promotion of Jeffrey Munson to Executive Vice President, Chief Credit Officer of the Bank. In his new role Munson will manage Credit Administration, along with the SBA and Real Estate departments for the Bank.

Today AMERICAN BUSINESS BANK (OTCQX: AMBZ) is proud to announce the promotion of Philip Feghali to President of the bank. In his new role Feghali will oversee Credit Administration and Human Resources for the Bank.

“We are grateful to be recognized for the bank’s exceptional performance of 2021,” said Leon Blankstein, Chief Executive Officer and President of ABB.

ABB proudly announced today the promotion of Gary Cook to Regional Executive Vice President and Real Estate Manager. Cook joined American Business Bank (ABB) in November 2017 as a Senior Vice President, Real Estate Officer. Cook has 34 years of Real Estate banking experience at various financial institutions.