Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 193

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 193
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 of Section 1221 of the Code (generally, property held for investment). Further, the following discussion may not apply to particular categories of holders
of shares of ESSA common stock subject to special treatment under the Code, such as insurance companies, S corporations or other pass-through entities (and investors therein), financial institutions, broker-dealers, dealers in securities, traders in
securities that elect to use a mark to market method of accounting, real estate investment trusts, regulated investment companies, governmental organizations, tax-exempt organizations, individual retirement
and other tax-deferred accounts, banks, persons subject to the alternative minimum tax, persons who hold ESSA capital stock as part of a straddle, hedging or conversion transaction, persons whose functional
currency is other than the U.S. dollar, persons eligible for tax treaty benefits, foreign corporations, foreign partnerships and other foreign entities, individuals who are not citizens or residents of the United States and holders of stock options
or holders whose shares were acquired pursuant to the exercise of an employee stock option or otherwise as compensation. In addition, this discussion does not address any alternative minimum tax or any state, local or
non-U.S. tax consequences of the holding company merger, nor does it address any tax consequences arising under the unearned income Medicare contribution tax pursuant to the Health Care and Education
Reconciliation Act of 2010.

The U.S. federal income tax consequences to a partner in an entity or arrangement that is treated as a partnership for United
States federal income tax purposes and that holds ESSA common stock generally will depend on the

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status of the partner and the activities of the partnership. Partners in a partnership holding ESSA common stock should consult their tax advisors regarding the tax consequences of the holding company merger to their specific circumstances. You are urged to consult your tax advisors to determine the specific tax consequences of the holding company merger, including any state, local or non-U.S.tax consequences of the holding company merger. U.S. Holders As used herein, a “U.S. holder” is a beneficial owner of ESSA common stock who or that is, for U.S. federal income tax purposes:

| • |     | an individual citizen or resident of the United States; |

| • |     | corporation (or other entity that is treated as a corporation for U.S. federal income tax purposes) that is                                           
 created or organized (or treated as created or organized) in or under the laws of the United States or any