X0609 4 2026-04-14 0001174850 NICOLET BANKSHARES INC NIC 0001253903 ATWELL ROBERT BRUCE false C/O NICOLET NATIONAL BANK 111 NORTH WASHINGTON STREET GREEN BAY WI 54301 1 0 Common Stock 2026-04-14 4 A 0 12.712 158.42 A 568.446 I by Nicolet National Bank Deferred Compensation Plan For Non-employee Directors Common Stock 34054 D Mr. Atwell acquired 12.712 shares in the Nicolet National Bank Deferred Compensation Plan for Non-employee Directors by deferring his first quarter 2026 earned board fees. Includes 1.172 shares received as dividend reinvestment in the Nicolet National Bank Deferred Compensation Plan for Non-employee Directors from Nicolet Bankshares, Inc. paid cash dividend on March 16, 2026. /s/ H. Phillip Moore, Jr., as attorney-in-fact for Robert B. Atwell 2026-04-22