Company: ASB
Filing Date: 2025-12-30
Form Type: S-4
Source: 0001193125-25-337086
Chunk: 12

Company: ASSOCIATED BANC-CORP
Filing Date: 2025-12-30
Form: S-4
Chunk 12
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 has elected financial holding
company status under the Bank Holding Company Act of 1956, as amended (the “BHC Act”). American National’s primary activities consist of holding the stock of its majority-owned subsidiary bank, American National Bank, and providing
a wide range of banking and related business activities through American National Bank.

American National Bank, headquartered in Omaha,
Nebraska, is a privately held community bank founded in 1856. It operates 33 full-service branches across Nebraska, Minnesota and Iowa, with a strong presence in the Greater Omaha and Minneapolis/St. Paul metro areas. American National Bank offers a
full suite of financial services, including personal and business banking, mortgage lending, wealth management and treasury services.

At
September 30, 2025, American National had consolidated total assets of approximately $5.3 billion, total loans of approximately $3.8 billion and deposits of approximately $4.7 billion.

4

The principal executive offices of American National are located at 8990 West Dodge Road, in Omaha, Nebraska, and its telephone number is (800) 279-0007. The Merger and the Merger Agreement The terms and conditions of the Merger are contained in the Merger Agreement, a copy of which is attached as Annex Ato this information statement/prospectus. You are encouraged to read the Merger Agreement carefully and in its entirety, as it is the primary legal document that governs the Merger. Subject to the terms and conditions of the Merger Agreement, at the completion of the Merger, American National will merge with and into Associated, with Associated as the surviving corporation. Immediately following the completion of the Merger or at such later time as Associated may determine in its sole discretion, American National Bank will merge with and into Associated Bank, with Associated Bank as the surviving bank in the Bank Merger. Merger Consideration American National Common Stock Under the terms and subject to the conditions set forth in the Merger Agreement, each share of American National common stock issued and outstanding immediately prior to the effective time of the Merger (excluding certain shares excepted under the Merger Agreement) will be converted into the right to receive the Merger Consideration of 36.250 shares of Associated common stock, with cash in lieu of fractional shares. Associated will not issue any fractional shares of Associated common stock in the Merger. American National shareholders who would otherwise be entitled to a fraction of a share of Associated common stock in the Merger will instead receive, for the fraction of