GREEN BAY, Wis.--(BUSINESS WIRE)--Nicolet Bankshares, Inc. (NYSE: NIC) (“Nicolet”) completed its merger with MidWestOne Financial Group, Inc., (“MidWestOne”), as a result of which, MidWestOne merged with and into Nicolet, with Nicolet being the surviving corporation. MidWestOne Bank will operate as a division of Nicolet National Bank until the planned system conversion in August 2026. At that time, all 50+ MidWestOne locations will transition to the Nicolet brand and digital banking platform, e.