X0306 4 2022-08-16 0001521951 FIRST BUSINESS FINANCIAL SERVICES, INC. FBIZ 0001435770 Sloane Edward G JR 401 CHARMANY DRIVE MADISON WI 53719 0 1 0 0 Chief Financial Officer Common Stock 2022-08-16 4 F 0 105 36.41 D 19243.8519 D Includes 828.8517 shares held by reporting person's dividend reinvestment plan. Peter J. Wilder (pursuant to Power of Attorney filed previously) 2022-08-18