144 0001667436 XXXXXXXX LIVE 0001174850 NICOLET BANKSHARES INC 001-37700 111 N WASHINGTON ST GREEN BAY WI 54301 920 430 1400 Witczak Eric James Officer Common Fidelity Brokerage Services LLC

900 Salem Street Smithfield RI 02917

1588 221399.20 14856888 08/27/2025 NYSE Common 08/27/2025 Stock Option Exercise Issuer N 1588 08/27/2025 Cash N Eric Witczak

111 North Washington Street Green Bay WI 54301

Common 07/18/2025 5000 698864.50 Eric Witczak

111 North Washington Street Green Bay WI 54301

Common 08/26/2025 1564 213793.50 08/27/2025 /s/ Gerardo Ibarra-Munoz, as a duly authorized representative of Fidelity Brokerage Services LLC, as attorney-in-fact for Eric Witczak