Jewel Box Financial Services, Inc. (“Jewel Box”), the holding company of Farmers & Merchants Union Bank (“FMUB”), and Ambanc Financial Services, Inc. (“Ambanc”), the holding company of American Bank of Beaver Dam (“American Bank”), have announced that Jewel Box has acquired Ambanc. Upon the closing of the transaction, Jewel Box merged American Bank into FMUB.
Olsen Palmer LLC served as financial advisor to Jewel Box Financial Services, Inc.
This transaction marked Jewel Box’s second successful acquisition since the start of 2025, both advised upon by Olsen Palmer LLC. With the addition of American Bank, FMUB approaches $1 billion in assets and expands its branch network to 13 locations across Wisconsin.
Olsen Palmer was the #1 sell-side bank M&A advisor nationwide in 2025 and one of the top 3 overall (sell-side + buy-side) based on transaction count, according to S&P Global.