Company: ASB
Filing Date: 2025-12-30
Form Type: S-4
Source: 0001193125-25-337086
Chunk: 58

Company: ASSOCIATED BANC-CORP
Filing Date: 2025-12-30
Form: S-4
Chunk 58
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 or as consented to in writing by American National (such consent not to be unreasonably withheld, conditioned or delayed), Associated will not, and will not permit any of its subsidiaries to:

| • |     | amend its articles of incorporation or its bylaws in a manner that would materially and adversely affect the 
 holders of American National common stock relative to other holders of Associated common stock;              |

| • |     | adjust, split, combine or reclassify any of its capital stock or make, declare or pay any extraordinary dividend 
 on any capital stock of Associated;                                                                              |

| • |     | merge or consolidate itself or Associated Bank with any other person if the merger or consolidation is reasonably          
 likely to prevent, materially delay or materially impair the receipt of the requisite regulatory approvals or the closing; |

| • |     | take any action or knowingly fail to take any action where such action or failure to act could reasonably be                     
 expected to prevent or impede the Merger from qualifying as a “reorganization” within the meaning of Section 368(a) of the Code; |

| • |     | knowingly take any action that is intended to or would reasonably be likely to adversely affect or materially                                                                                                                                             
 delay the ability of Associated or its subsidiaries to obtain any necessary approvals of any governmental entity required for the transactions contemplated by the Merger Agreement or to perform its covenants and agreements under the Merger Agreement 
 or to consummate the transactions contemplated by the Merger Agreement; or                                                                                                                                                                                |

| • |     | agree to take, make any commitment to take, or adopt any resolutions of its board of directors or similar 
 governing body in support of, any of the foregoing.                                                       |

Regulatory Matters Associated (with American National’s reasonable cooperation) will promptly prepare and file with the SEC the S-4in respect of the shares of Associated common stock to be issued (other than to the American National voting shareholders) in connection with the Merger. Associated will use its reasonable best efforts to make such filing within 45 days of the date of the Merger Agreement. Associated shall use reasonable best efforts to have the S-4declared effective under the Securities Act as promptly as practicable after such filing and to keep the S-4effective for so long as necessary to consummate the transactions contemplated by the Merger Agreement. 42

Associated shall also use its reasonable best efforts to obtain all necessary state securities law or “Blue Sky” permits and approvals required to carry out the transactions
contemplated by the Mer