Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 231

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 231
---
 Section 13(a), 13(c), 14 or 15(d) of the Exchange Act, between the date of this joint proxy statement/prospectus and the dates of the CNB annual meeting and the ESSA special meeting. These documents include Annual Reports on Form 10-K,Quarterly Reports on Form 10-Q,Current Reports on Form 8-Kand 187

proxy statements. To the extent that any information contained in any Current Report on Form 8-K,or any exhibit to such report, was furnished to, rather than filed with, the SEC, such information or exhibit is not specifically incorporated by reference into this joint proxy statement/prospectus. Documents incorporated by reference are available from CNB and ESSA, without charge, excluding all exhibits unless an exhibit has been specifically incorporated by reference into this joint proxy statement/prospectus. You can obtain documents incorporated by reference into this joint proxy statement/prospectus by requesting them in writing or by telephone from the appropriate company at the following addresses and telephone numbers:

| CNB Financial Corporation       
 1 South Second Street           
 PO Box 42                       
 Clearfield, Pennsylvania 16830  
 Attention:                      
 Secretary                       
 (814) 765-9621 www.cnbbank.bank |     | ESSA Bancorp, Inc.                                  
 200 Palmer Street PO Box L                          
 Stroudsburg, Pennsylvania 18360                     
 Attention: Stephanie Lefferson                      
 Corporate Secretary (570) 422-0182 www.essabank.com |

Neither CNB nor ESSA has authorized anyone to give any information or make any representation about the merger, the CNB annual meeting or the ESSA special meeting that is different from, or in addition to, that contained in this joint proxy statement/prospectus or in any of the materials that are incorporated by reference into this joint proxy statement/prospectus. Therefore, if anyone gives you information of this sort, you should not rely on it. This joint proxy statement/prospectus does not constitute an offer to sell, or a solicitation of an offer to purchase, the securities offered by this joint proxy statement/prospectus, or the solicitation of a proxy, in any jurisdiction to or from any person to whom or from whom it is unlawful to make such offer, solicitation of an offer or proxy solicitation in such jurisdiction. Neither the delivery of this joint proxy statement/prospectus nor any distribution of securities pursuant to this joint proxy statement/prospectus shall, under any circumstances, create any