Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 199

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 199
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 be traded on NASDAQ under the symbol “CCNE.” In addition, following the consummation of the merger, ESSA common stock will be delisted from
NASDAQ, will be deregistered under the Exchange Act and will cease to be publicly traded.

Litigation Related to the Merger

Since the initial filing on February 20, 2025 of the registration statement of which this joint proxy statement/prospectus is a part, CNB has
received one Demand Letter from a purported CNB shareholder generally alleging that the registration statement filed with the SEC on February 20, 2025 omits material information in violation of the federal securities laws. The shareholder has
demanded disclosure of certain additional information pertaining to certain financial projections for CNB and ESSA, certain information with respect to Piper Sandler’s analysis, and other requested disclosures. Please see the section of this
joint proxy statement/prospectus entitled “Risk Factors—Risks Relating to the Merger—Since the initial filing on February 20, 2025 of the registration statement of which this joint proxy statement/prospectus is a part, CNB and the CNB
Board of Directors has received one Demand Letter from a purported CNB shareholder, which could result in litigation related to the merger being filed against CNB, the CNB Board of Directors, and/or ESSA and the ESSA Board of Directors, and
additional demand letters may be received or litigation may be filed against them, which could prevent or delay the completion of the merger or otherwise negatively impact the business and operations of CNB and ESSA” beginning on page 25 for
more information.

153

ESSA PROPOSAL 2—MERGER-RELATED EXECUTIVE COMPENSATION

As required by the federal securities laws, ESSA is providing its shareholders with the opportunity to cast an advisory, non-binding vote on the compensation that may become payable to its named executive officers in connection with the completion of the merger, as disclosed in the section entitled “The Merger—Interests of
Certain ESSA Directors and Executive Officers in the Merger” beginning on page 145 and the related tables and narrative.

Your vote is
requested. ESSA believes that the compensation that may become payable to its named executive officers in connection with the completion of the merger is reasonable and the information regarding such compensation demonstrates that ESSA’s
executive compensation program was designed appropriately and structured to ensure the retention of talented executives and a