Strategic Balance Sheet Management Yields a Healthy Net Interest Margin FAIRFAX, Va., Jan. 26, 2026 /PRNewswire/ -- MainStreet Bancshares, Inc. (Nasdaq: MNSB & MNSBP), the financial holding company for MainStreet Bank, reported a net income of $15.6 million for the year-ended December 31, 2025, resulting in earnings per common share of $1.76.