Esquire Financial Holdings, Inc. Completes Acquisition of Signature Bancorporation, Inc. on August 1, 2026

JERICHO, N.Y., Aug. 3, 2026 — Esquire Financial Holdings, Inc. (NASDAQ: ESQ) ("Esquire"), the parent company of Esquire Bank, National Association, (collectively "Esquire") announced today the completion of the previously announced acquisition of Signature Bancorporation, Inc., the parent company of Signature Bank (collectively "Signature"), effective August 1, 2026.

The combined company has approximately $4.8 billion in total assets, $3.3 billion in loans, and $4.0 billion in total deposits (based on financial information as of June 30, 2026). This combined company will join Esquire's established national litigation and payments verticals with Signature's established Chicago and Midwest commercial banking franchise, enhancing the company's continued industry-leading performance and growth metrics.

"We are thrilled to welcome the Signature team, clients, and shareholders to Esquire," stated Tony Coelho, Chairman of the Board of Directors. "This combination brings together two institutions with highly complementary commercial banking operations and capabilities while uniting two highly talented management teams with strong client relationships and strong market expertise."

"The Signature merger positions the combined company for continued industry-leading growth, performance metrics and enhanced success in the highly desirable Midwest and Chicago metropolitan markets with a well-established Chicago-based management team and brand," stated Andrew C. Sagliocca, Vice Chairman, Chief Executive Officer, and President. "Chicago represents one of the top three largest metro markets by both population and number of contingency fee law firms, with New York City and Los Angeles rounding out the top three."

The former Signature Bank will operate as a division of Esquire Bank under the name "Signature, a division of Esquire Bank" (the "Division"). Michael G. O'Rourke will serve as President of the Division. Kevin P. Bastuga and Bryan D. Duncan will each serve as Executive Vice Presidents of the Division.

Michael G. O'Rourke, President of Signature, a division of Esquire Bank, added, "This transaction was built on both companies' shared values and commitment to our clients. The combined company will continue to deliver enhanced value to all stakeholders while accelerating our growth in Chicago and the Midwest markets."

In connection with the closing of the transaction, Mr. O'Rourke and Leonard S. Caronia, former Chairman of Signature's Board, were appointed to the Boards of Directors of Esquire.

About Esquire Financial Holdings, Inc.

Esquire Financial Holdings, Inc. is a financial holding company headquartered in Jericho, New York. Its wholly owned subsidiary, Esquire Bank, is a full-service commercial bank, with branch offices in Jericho, New York, Los Angeles, California, Chicago, Illinois, as well as an administrative office in Boca Raton, Florida. The Bank is dedicated to serving the financial needs of the litigation industry and small businesses nationally, as well as commercial and retail customers in the New York, Los Angeles and Chicago metropolitan areas. The Bank offers tailored financial and payment processing solutions to the litigation community and their clients as well as dynamic and flexible payment processing solutions to small business owners. For more information, visit www.esquirebank.com.