X0609 4 2026-05-19 0001174850 NICOLET BANKSHARES INC NIC 0001243725 LONG DONALD J JR false C/O NICOLET NATIONAL BANK 111 NORTH WASHINGTON STREET GREEN BAY WI 54301 1 0 Common Stock 2026-05-19 2026-05-21 4 A 0 569.244 139.63 A 6186.059 I By Nicolet National Bank Deferred Compensation Plan For Non-employee Directors Common Stock 81113 D The Company paid Mr. Long the Board annual cash retainer, annual committee fees, and nominating and governance committee chair fee, all of which Mr. Long deferred into the Nicolet National Bank Deferred Compensation Plan for Non-employee Directors. /s/ H. Phillip Moore, Jr., as attorney-in-fact for Donald Long, Jr. 2026-05-26