Fourthstone LLC - 31 Dec 2025 SCHEDULE 13G/A Report for MainStreet Bancshares, Inc. Common Stock, par value $4.00 per share (MNSB)

Filing Manager
Fourthstone LLC
Reporting Manager
Fourthstone LLC
Security
MainStreet Bancshares, Inc. Common Stock, par value $4.00 per share
Symbol
MNSB
Shares outstanding
7,708,755 shares
Disclosed Ownership
767,792 shares
Ownership
10%
Form type
SCHEDULE 13G/A
Filing time
13 Feb 2026, 16:08:56 UTC
Date of event
31 Dec 2025
Previous filing
14 Nov 2025
SEC
View on sec.gov

Quoteable Key Fact

"Fourthstone LLC disclosed 10% ownership in MainStreet Bancshares, Inc. Common Stock, par value $4.00 per share (MNSB) on 31 Dec 2025."

Quick Takeaways

  • Fourthstone LLC filed SCHEDULE 13G/A for MainStreet Bancshares, Inc. Common Stock, par value $4.00 per share (MNSB).
  • Disclosed ownership: 10%.
  • Date of event: 31 Dec 2025.

What Changed

  • Previous schedule filing date: 14 Nov 2025.
  • Current filing was accepted on 13 Feb 2026, 16:08.

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 10% 767,792 0 767,792 Amy M. Stone Chief Executive Officer
Fourthstone Master Opportunity Fund Ltd 7.8% 603,757 0 603,757 Amy M. Stone Chief Executive Officer
Fourthstone GP LLC 2.1% 164,035 0 164,035 L. Phillip Stone, IV Managing Member of Fourthstone GP LLC
Fourthstone QP Opportunity Fund LP 2.1% 158,932 0 158,932 Amy M. Stone Chief Executive Officer
Fourthstone Small-Cap Financials Fund LP 0.07% 5,103 0 5,103 Amy M. Stone Chief Executive Officer
L. Phillip Stone, IV 10% 767,792 0 767,792 L. Phillip Stone, IV Self, Principal owner of Fourthstone LLC