Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 184

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 184
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IPLE YEARS, SUCH INFORMATION BY ITS NATURE
BECOMES SUBJECT TO GREATER UNCERTAINTY WITH EACH SUCCESSIVE YEAR.

ESSA has not made and makes no representation to CNB or any ESSA or CNB shareholder, in
the merger agreement or otherwise, concerning this unaudited prospective financial information or regarding the ultimate performance of ESSA, CNB or the combined company after giving effect to the merger compared to the unaudited prospective
financial information or that the projected results will be achieved. In light of the foregoing factors and the uncertainties inherent in the unaudited prospective financial information, ESSA urges all ESSA and CNB shareholders not to place undue
reliance on such information.

Neither S.R. Snodgrass, P.C. nor any other registered public accounting firm has compiled, examined or performed any audit
or other procedures with respect to the unaudited prospective financial information contained herein, nor have they expressed any opinion or any other form of assurance on such information or its achievability. The report of S.R. Snodgrass, P.C.
contained in ESSA’s Annual Report on Form 10-K for the year ended September 30, 2024, as amended, which is incorporated by reference into this joint proxy statement/prospectus, relates
to the historical financial information of ESSA. It does not extend to the unaudited

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prospective financial information and should not be read to do so. Furthermore, the unaudited prospective financial information does not take into account any circumstances or events occurring after the dates on which it was prepared. The following table presents a summary of the ESSA management forecasts relating to ESSA (on a standalone basis) for the fiscal years 2025 through 2028, which ESSA management provided to PNC FIG Advisory for purposes of performing financial analyses in connection with PNC FIG Advisory’s opinion as described above under the section entitled “—Opinion of ESSA’s Financial Advisor.”

|            |     | Fiscal Year Ending September 30, 
 2025E                            |        |     | 2026E |        |     | 2027E |        |     | 2028E |        |
|:-----------|:----|:---------------------------------|-------:|:----|:------|-------:|:----|:------|-------:|:----|:------|-------:|
|            |     | -