Kotouc Family Group Acquires 5.65% Stake in Associated Banc-Corp Following Merger

On April 1, 2026, a group of reporting persons led by Wende L. Kotouc and John F. Kotouc acquired a significant stake in Associated Banc-Corp (ASB) following the issuer's merger with American National Corporation. Under the terms of the merger agreement, shares of American National were converted into Associated Banc-Corp common stock at a ratio of 36.250 shares for each American National share. Collectively, the reporting persons, which include various family trusts (JK Trust, TOK Trust, AD Trust, etc.), now beneficially own 10,648,000 shares, representing 5.65% of the outstanding common stock. In conjunction with the merger, Wende L. Kotouc was appointed to the Issuer's Board of Directors. The reporting persons also entered into a Transfer, Voting and Registration Rights Agreement, which imposes certain transfer restrictions for one year and requires them to vote in accordance with the Board's recommendations as long as they maintain at least a 5% position. The shares were acquired for investment purposes.