MainStreet Bancshares, Inc. reported second quarter 2026 net income of $4.7 million, a 14% sequential-quarterly increase, with earnings per common share of $0.58. Net interest margin expanded to 3.53% and the company repurchased 207,000 shares of common stock during the period. MainStreet Bancshares, Inc. is a financial holding company that provides banking and professional lending products through its subsidiary, MainStreet Bank.