Fourthstone LLC - 31 Dec 2025 SCHEDULE 13G Report for CoastalSouth Bancshares, Inc. Common Stock, par value $1.00 per share (COSO)

Filing Manager
Fourthstone LLC
Reporting Manager
Fourthstone LLC
Security
CoastalSouth Bancshares, Inc. Common Stock, par value $1.00 per share
Symbol
COSO
Shares outstanding
11,982,484 shares
Disclosed Ownership
959,797 shares
Ownership
8%
Form type
SCHEDULE 13G
Filing time
13 Feb 2026, 16:10:15 UTC
Date of event
31 Dec 2025
SEC
View on sec.gov

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Quoteable Key Fact

"Fourthstone LLC disclosed 8% ownership in CoastalSouth Bancshares, Inc. Common Stock, par value $1.00 per share (COSO) on 31 Dec 2025."

Quick Takeaways

  • Fourthstone LLC filed SCHEDULE 13G for CoastalSouth Bancshares, Inc. Common Stock, par value $1.00 per share (COSO).
  • Disclosed ownership: 8%.
  • Date of event: 31 Dec 2025.

What Changed

  • No earlier schedule filing is available for direct comparison.
  • Current filing was accepted on 13 Feb 2026, 16:10.

Why This Matters

  • This page explains what this Schedule 13D/13G filing tells you before manager-level rows.
  • You can verify ownership claims directly against the original SEC filing.

Source Evidence

Backed by Schedule 13D/13G

Beneficial ownership values are sourced from the original SEC Schedule 13D/13G filing.

See Original Filing

Reporting Managers (6)

Name Ownership Shares Owned sole voting power shared voting power Signature Title CIK
Fourthstone LLC 8% 959,797 0 959,797 Amy M. Stone Chief Executive Officer
Fourthstone Master Opportunity Fund Ltd 6.2% 748,448 0 748,448 Amy M. Stone Chief Executive Officer
Fourthstone GP LLC 1.8% 211,349 0 211,349 L. Phillip Stone, IV Managing Member of Fourthstone GP LLC
Fourthstone QP Opportunity Fund LP 1.6% 196,246 0 196,246 Amy M. Stone Chief Executive Officer
Fourthstone Small-Cap Financials Fund LP 0.13% 15,103 0 15,103 Amy M. Stone Chief Executive Officer
L. Phillip Stone, IV 8% 959,797 0 959,797 L. Phillip Stone, IV Self, Principal owner of Fourthstone LLC

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