Coastal States Bank Celebrates Initial Public Offering and NYSE Listing of its Holding Company with Opening Bell Ceremony

Coastal States Bank ("CSB") marked a significant milestone, ringing the Opening Bell at the New York Stock Exchange (NYSE) in celebration of the initial public offering (IPO) and official listing of its holding company, CoastalSouth Bancshares, Inc. (NYSE:COSO). The opening bell was rung by the company's Chairman, Jim MacLeod and President and Chief Executive Officer, Stephen R. Stone, who were joined on the podium by members of the bank's board of directors and senior leadership team.

This press release features multimedia. View the full release here: https://www.businesswire.com/news/home/20260107601812/en/

Members of CoastalSouth Bancshares, Inc. Board of Directors and Coastal States Bank's senior leadership team ring the NYSE Opening Bell.

The Opening Bell ceremony reflects CSB's transition to operating as part of a publicly traded organization, following the completion of CoastalSouth's IPO in July of 2025. Trading under the ticker symbol NYSE: COSO, the company joins the Exchange while remaining firmly committed to its community banking roots.

"This represents an important chapter in our story," said Stone. "Our IPO and listing on the NYSE have given us the resources we need to continue to build on our strong foundation, expand our impact in our communities, and serve our clients with the same relationship-driven approach that has defined who we are since our inception in 2004."

The NYSE Opening Bell ceremony is a longstanding tradition that marks the beginning of the trading day and recognizes notable corporate milestones. For CSB, the moment represents both a celebration of progress and a continued commitment to its clients, team members, shareholders and communities in Georgia, South Carolina and across the nation.

About the Company

Coastal States Bank builds relationships by providing a full range of banking services designed for businesses, their owners and individuals looking for a local banking partner. CSB has a community banking presence in the Lowcountry of South Carolina (Hilton Head Island, Bluffton and Beaufort), Savannah and the Atlanta Metropolitan market, and serves communities across the country through its Government Guaranteed Lending, Senior Housing, Correspondent Marine and Mortgage Banker Finance lines of business. At present, CSB has approximately $2.3 billion in total assets.

CSB is a wholly-owned subsidiary of CoastalSouth Bancshares, Inc. (NYSE:COSO).

Coastal States Bank – Local. And Proud of It.^®

For additional information regarding Coastal States Bank, please visit www.coastalstatesbank.com.

View source version on businesswire.com: https://www.businesswire.com/news/home/20260107601812/en/

Media Contact:

Raquel Cobb

VP, Marketing and Communications Director

Coastal States Bank

[email protected]