Insider Transaction Report for Bradley A. Quade

Bradley A. Quade, Chief Credit Officer of FIRST BUSINESS FINANCIAL SERVICES, INC. (FBIZ), reported a net acquisition of 1644 shares of common stock. On April 10, 2026, 2740 shares were acquired upon vesting of performance-based restricted stock unit awards for the 2023-2025 performance period, with a reported acquisition price of $0. This was followed by the disposal of 1096 shares at a price of $58.60 per share. Following these transactions, Mr. Quade directly owns 16,582 shares of common stock. The acquisition is detailed under footnote F1, relating to performance stock units.