CoastalSouth Bancshares, Inc. Announces \$15 Million Stock Repurchase Plan

Key Highlights for Investors

• Board Approval of Stock Repurchase: The Board of Directors of CoastalSouth Bancshares, Inc. (NYSE: COSO) has approved a new stock repurchase plan, authorizing the buyback of up to \$15 million of the Company’s common stock.
• Repurchase Period: The 2026 Repurchase Plan is effective May 1, 2026, and will run through April 30, 2027, unless extended by the Board.
• Flexible Repurchase Methods: Shares may be repurchased through open market transactions, accelerated share repurchase programs, privately negotiated deals, or other compliant methods under Rule 10b-18 of the Securities Exchange Act of 1934.
• Rule 10b5-1 Trading Plan: The Company may execute repurchases even during self-imposed trading blackout periods or other regulatory restrictions, leveraging a Rule 10b5-1 trading plan.
• No Repurchase Obligation: The Company is not obligated to repurchase any specific amount of shares and retains the right to extend, modify, amend, suspend, or discontinue the program at any time.

What Shareholders Need to Know

The announcement of a \$15 million stock repurchase plan is a significant development for existing and prospective shareholders. Stock repurchase programs are typically viewed positively by the market as they can signal management’s confidence in the Company’s valuation and future prospects. Such buybacks often lead to an increase in share value by reducing the number of shares outstanding, thereby boosting earnings per share (EPS) and potentially supporting the stock price.

The flexibility built into the 2026 Repurchase Plan—enabling the Company to buy back shares in a variety of ways and at different times—gives management the ability to respond to market conditions and internal considerations. The use of a Rule 10b5-1 plan is noteworthy, as it allows the Company to continue repurchasing shares even during periods when it would otherwise be restricted from doing so due to blackout windows or other regulatory constraints.

However, it is important to note that the repurchase plan does not obligate the Company to buy back any set amount of shares. The Board may choose to amend, suspend, or terminate the plan at any time, depending on market circumstances, regulatory requirements, and other factors.

About CoastalSouth Bancshares, Inc.

CoastalSouth Bancshares, Inc. is headquartered in Atlanta, Georgia, and operates as the holding company for Coastal States Bank, a South Carolina state-chartered commercial bank. The Bank provides a comprehensive suite of banking products and services tailored to businesses, real estate professionals, and consumers who value close banking relationships. For more information, visit coastalstatesbank.com.

Contact Information

• Anthony P. Valduga, Chief Financial Officer / Chief Operating Officer
• Phone: 678-396-4605
• Email: [email protected]

Potential Impact on Share Price

The authorization of a sizeable stock repurchase program is a potentially price-sensitive event for investors. It reflects confidence from CoastalSouth’s Board in the Company’s ongoing performance and capital position. Investors should monitor the Company’s share repurchase activity, as actual buybacks could reduce share float, enhance shareholder value, and provide support to the stock price, particularly if shares are perceived as undervalued by management.

Disclaimer: This article is for informational purposes only and does not constitute investment advice. Investors should conduct their own due diligence and consult with a qualified financial advisor before making investment decisions. CoastalSouth Bancshares, Inc. may change or discontinue its stock repurchase plan at any time, and past performance is not indicative of future results.

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