Company: CCNE
Filing Date: 2025-01-10
Form Type: 425
Source: 0001193125-25-004105
Chunk: 7

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-01-10
Form: 425
Chunk 7
---
 Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.

| January 10, 2025 |     | CNB FINANCIAL CORPORATION |     |                  |
|:-----------------|:----|:--------------------------|:----|:-----------------|
|                  |     | By:                       |     | /s/ Tito L. Lima |
|                  |     |                           |     | Tito L. Lima     |
|                  |     |                           |     | Treasurer        |

Exhibit 2.1

Execution Version

### AGREEMENT AND PLAN OF MERGER
DATED AS OF JANUARY 9, 2025

BY AND AMONG

CNB FINANCIAL CORPORATION,

CNB BANK,

ESSA BANCORP, INC.

AND

ESSA BANK & TRUST

TABLE OF CONTENTS

|                                                                  |     |                                                                                                                               |     | Page |    |
| ARTICLE I THE MERGER                                             |     |                                                                                                                               |     |      |  2 |
| Section 1.01                                                     |     | Terms of the Merger                                                                                                           |     |      |  2 |
| Section 1.02                                                     |     | Tax Consequences                                                                                                              |     |      |  2 |
| Section 1.03                                                     |     | Name of the Surviving Corporation and the Surviving Bank                                                                      |     |      |  2 |
| Section 1.04                                                     |     | Articles of Incorporation and Bylaws of the Surviving Corporation; Articles of Incorporation and Bylaws of the Surviving Bank |     |      |  2 |
| Section 1.05                                                     |     | Directors and Officers of the Surviving Corporation and the Surviving Bank                                                    |     |      |  2 |
| Section 1.06                                                     |     | Effect of the Merger                                                                                                          |     |      |  3 |
| Section 1.07                                                     |     | Effective Date and Effective Time; Closing                                                                                    |     |      |  3 |
| Section 1.08                                                     |     | Alternative Structure                                                                                                         |     |      |  4 |
| Section 1.09                                                     |     | Additional Actions                                                                                                            |     |      |  4 |
| Section 1.10                                                     |     | Absence of Control                                                                                                            |     |      |