Fourthstone LLC Increases Stake in CoastalSouth Bancshares to 9.18%

Fourthstone LLC, along with affiliated reporting persons including Fourthstone Master Opportunity Fund Ltd. and L. Phillip Stone, IV, filed an amended Schedule 13G on May 15, 2026, regarding their holdings in CoastalSouth Bancshares, Inc. (COSO). As of the event date of March 31, 2026, the reporting group collectively beneficially owns 1,100,504 shares of Common Stock, representing 9.18% of the company's outstanding shares. This reflects a significant position held by Fourthstone LLC and its various funds, including Fourthstone Master Opportunity Fund (7.09%) and Fourthstone GP LLC (2.09%). The filing indicates that the shares were acquired in the ordinary course of business as a registered investment adviser and are not held for the purpose of changing or influencing the control of the issuer. L. Phillip Stone, IV, as the Managing Member of Fourthstone LLC and Fourthstone GP, may be deemed to share beneficial ownership of the reported securities. The calculations are based on 11,985,414 shares of Common Stock outstanding as of March 5, 2026.