Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 219

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 219
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 contemplated by the merger agreement and all related statutory waiting periods having expired or been terminated and no regulatory approvals contain any condition which the board of directors of 
 either CNB or ESSA determines in good faith would materially reduce the benefits of the merger such that one of the parties would not have entered into the merger agreement if known;                                                                |

| • |     | the registration statement, of which this joint proxy statement/prospectus is a part, being declared effective 
 and the absence of any stop order suspending that effectiveness;                                               |

| • |     | the shares of CNB common stock issuable in connection with the merger being approved for listing on NASDAQ; |

| • |     | the absence of any judgment, order, injunction or decree, or any statute, rule, regulation, order, injunction or                                                              
 decree enacted, entered, promulgated or enforced, preventing, prohibiting or making illegal the consummation of any of the transactions contemplated by the merger agreement; |

| • |     | CNB having received the written opinion of Hogan Lovells and ESSA having received the written opinion of Luse                                       
 Gorman, in each case substantially to the effect that the merger will constitute a tax-free reorganization described in Section 368(a) of the Code; |

| • |     | the issuance of CNB common stock in connection with the merger having been approved by the requisite vote of CNB 
 shareholders; and                                                                                                |

| • |     | the merger agreement having been approved by the requisite vote of the ESSA shareholders. |

In addition, the obligations of CNB to consummate the merger are subject to the fulfillment or written waiver, where permissible, of the following additional conditions:

| • |     | each of the representations and warranties of ESSA and ESSA Bank set forth in the merger agreement will be true                                                                                                                                        
 and correct in all material respects as of the date of the merger agreement (except to the extent they speak as of an earlier date) and as of the closing date of the merger, unless the failure of such representations and warranties to be true and 
 correct in all material respects, individually or in the aggregate, has not had, or would not reasonably be likely to have, a material adverse effect on ESSA or, after the effective time of the merger, on CNB;                                      |

| • |     | ESSA and ESSA Bank will have performed in all material respects all obligations required to be performed by it 
 under the merger agreement