Company: ASB
Filing Date: 2025-12-30
Form Type: S-4
Source: 0001193125-25-337086
Chunk: 66

Company: ASSOCIATED BANC-CORP
Filing Date: 2025-12-30
Form: S-4
Chunk 66
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, including by providing to Associated within 24 hours any amendments to or
revisions of the terms of such inquiry or American National acquisition proposal. American National will use its reasonable best efforts to enforce any existing confidentiality or standstill agreements to which it or any of its subsidiaries is a
party in accordance with the terms thereof.

46

Conditions to Completion of the Merger Associated’s and American National’s respective obligations to complete the Merger are subject to the satisfaction or waiver, at or prior to the effective time, of the following conditions:

| • |     | the shares of Associated common stock issuable pursuant to the Merger Agreement having been authorized for 
 listing on the NYSE, subject to official notice of issuance;                                               |

| • |     | the effectiveness under the Securities Act of 1933, as amended, of the Form                                                                                                                                
 S-4 of which this information statement/prospectus forms a part, and the absence of any stop order suspending the effectiveness of the registration statement or proceedings for that purpose initiated or 
 threatened by the SEC and not withdrawn;                                                                                                                                                                   |

| • |     | no order, injunction or decree issued by any court or governmental entity of competent jurisdiction or other                                                                                                                                        
 legal restraint or prohibition preventing the consummation of the Merger, the Bank Merger or any of the other transactions contemplated by the Merger Agreement being in effect, and no law, statute, rule, regulation, order, injunction or decree 
 having been enacted, entered, promulgated or enforced by any governmental entity which prohibits or makes illegal consummation of the Merger, the Bank Merger or any of the other material transactions contemplated by the Merger Agreement;       |

| • |     | all requisite regulatory approvals, including from the Federal Reserve Board and the OCC, having been obtained 
 and remaining in full force and effect and all statutory waiting periods in respect thereof having expired;    |

| • |     | the accuracy of the representations and warranties of the other party contained in the Merger agreement,                                                                   
 generally as of the date on which the Merger Agreement was entered into and as of the closing date, subject to the materiality standards provided in the Merger Agreement; |

| • |     | the performance by the other party in all material respects of the obligations, covenants and agreements required 
 to be performed by it under the Merger Agreement at or prior to the closing date;                                 |

| • |     | receipt by such party of a certificate signed on behalf of the other party