Company: CCNE
Filing Date: 2025-03-05
Form Type: 424B3
Source: 0001193125-25-047258
Chunk: 135

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-03-05
Form: 424B3
Chunk 135
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, at the address or telephone number listed below:

Laurel Hill Advisory Group, LLC

2
Robbins Lane, Suite 201

Jericho, New York 11753

(516) 933-3100

info@laurelhill.com

or

ESSA Bancorp, Inc.

200 Palmer
Street

PO Box L

Stroudsburg,
Pennsylvania 18360

Attention: Stephanie Lefferson

Corporate Secretary

(570) 422-0182

If you hold your shares through an intermediary, such as a bank, broker, trustee or other nominee,
you must register in advance to attend and vote online at the virtual special meeting. To register, you must submit a legal proxy reflecting your ESSA common stock holdings along with your name and email address to Computershare at
legalproxy@computershare.com. Requests for registration must be labeled as “Legal Proxy” and be received no later than 5:00 p.m., Eastern time, on April 9, 2025. You will receive a confirmation email with a control number from
Computershare regarding your registration.

107

If you fail to properly submit your proxy card or to instruct your broker, bank, trustee or other nominee to vote your shares of ESSA common stock and you do not attend the special meeting and vote your shares online during the meeting, your shares will not be voted. Participants in the ESSA Bank ESOP and 401(k) Plan If you participate in the ESSA Bank ESOP or if you hold ESSA common stock through the 401(k) Plan, you will receive a vote authorization form that reflects all shares you may direct the trustees to vote on your behalf under the plans. Under the terms of the ESSA Bank ESOP, the trustee will vote all shares held by the ESSA Bank ESOP, but each ESSA Bank ESOP participant may direct the trustee how to vote the shares of common stock allocated to his or her account. The trustee, subject to the exercise of its fiduciary responsibilities, will vote all unallocated shares of common stock held by the ESSA Bank ESOP and all allocated shares for which no voting instructions are received in the same proportion as shares for which it has received timely voting instructions. Under the terms of the 401(k) Plan, a participant is entitled to provide voting instructions for all shares credited to his or her 401(k) Plan account and held in the ESSA Banc