#United States #Houston #Merger #Prosperity Bank #American Bank

Prosperity Bancshares Finalizes Merger with American Bank Holding Corporation

On January 1, 2026, Prosperity Bancshares, Inc.® (NYSE: PB), the parent company of Prosperity Bank®, announced the successful completion of its merger with American Bank Holding Corporation. This strategic move integrates American Bank into Prosperity's operations, expanding its footprint in the regional banking sector.

Details of the Merger

The merger involved the assimilation of American Bank, headquartered in Corpus Christi, Texas, with Prosperity Bank's extensive banking network. According to the merger agreement, Prosperity issued a significant number of shares—totaling 4,439,981—to former stakeholders of American Bank. This transaction not only reflects the trust in Prosperity's leadership but also solidifies its position as a leading financial service provider in Texas.

Stephen Raffaele, who served as the President of American Bank, has stepped into a key role as the Chairman for South Texas and San Antonio Area within Prosperity Bank. Ben Wallace, the former Chairman of American Bank, joins as the Senior Chairman for South Texas. Their extensive experience is anticipated to bolster Prosperity Bank’s growth strategy and enhance service delivery for customers across South Texas.

American Bank extended its services through eighteen branch locations and two loan production offices throughout South and Central Texas. Known for its strong local presence, American Bank will continue to operate under its name until the full integration process is finalized, with an expected completion date in September 2026. Following this date, customers can seamlessly access services from any of Prosperity Bank’s locations.

The Vision for Growth

Prosperity Bancshares aims to maintain a community banking philosophy dedicated to supporting local businesses and consumers. With this merger, the company stands poised to offer an even broader array of financial products, including traditional banking services, mortgage solutions, and digital banking options.

As of Q3 2025, Prosperity operated a total of 283 full-service banking centers, continuing to dominate the Texas banking landscape. The bank also holds significant assets, boasting a regional presence and being well-capitalized to serve future banking needs across Texas and Oklahoma.

Co-founder and CEO of Prosperity, who has a long-standing history in the regional banking sector, expressed confidence in the benefits the merger will bring. The union will not only broaden the bank's customer base but also propel the roll-out of innovative banking practices tailored to a diverse clientele.

Future Aspirations

Looking ahead, Prosperity plans to integrate technology into its services in order to streamline operations for customers. The ongoing trend of digital banking and financial technology will play a vital role in enhancing customer experiences.

Positive forecasts for the merged entity are rooted in the solid foundation built through careful planning and strategic acquisition. Both Raffaele and Wallace's appointments are part of a broader vision to ensure stability and progress while maintaining the unique customer service ethos of both banks.

Prosperity is keen on addressing future challenges by focusing on customer satisfaction, expanding its product offerings, and ensuring efficiency in its operations across all locations. The merger with American Bank is a critical step in this direction, aligning with the strategic goals set out by Prosperity's leadership team.

Conclusion

In conclusion, the merger of Prosperity Bancshares with American Bank Holding Corporation represents a significant milestone in the financial landscape of Texas. With a commitment to community-focused banking, enhanced product offerings, and a dedicated leadership team, the newly formed entity is set to thrive in the coming years.