X0508 4 2024-07-22 0001174850 NICOLET BANKSHARES INC NIC 0001664629 Hutjens Brad Vincent C/O NICOLET NATIONAL BANK 111 NORTH WASHINGTON STREET GREEN BAY WI 54301 1 EVP - CCO - Nicolet Natl Bank 0 Common Stock 2024-07-22 4 M 0 10000 37.18 A 36642 D Common Stock 2024-07-22 4 S 0 10000 99.0019 D 26642 D Common Stock 1818 I By 401(k) Plan Stock Option (Right to Buy) 37.18 2024-07-22 4 M 0 10000 0 D 2026-09-20 Common Stock 10000 0 D The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.00 to $99.09, inclusive. Mr. Hutjens undertakes to provides to Nicolet Bankshares, Inc., any security holder of Nicolet Bankshares, Inc., or the staff of the Securities and Exchange Commission upon request, full information regarding the number of shares sold at each separate price within the ranges set forth in footnote (1) to this Form 4. Includes 71 additional shares acquired under the Employee Stock Purchase Plan since Mr. Hutjens last Form 4 filing on March 6, 2024. Mr. Hutjens owns a total of 700 shares in the Employee Stock Purchase Plan as of the date of this report. The non-qualified stock options fully vested as of September 20, 2021, and have now been fully exercised as of the date of this report. /s/ H. Phillip Moore, Jr., as attorney-in-fact for Brad V. Hutjens 2024-07-22