Company: CCNE
Filing Date: 2025-01-10
Form Type: 425
Source: 0001193125-25-004105
Chunk: 113

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-01-10
Form: 425
Chunk 113
---
 returns) with respect to any Taxes.

“”
means the federal Worker Adjustment and Retraining Notification Act of 1988, as amended, any state law analogs or statutes of similar effect, including any statutes that require advance notice of plant closings, mass layoffs or similar group
personnel or employment actions.

“” means a deliberate act or a deliberate failure to act, taken or not
taken if the Person reasonably should have known or had actual Knowledge that such act or failure to act would result in or constitute a material breach of this Agreement, regardless of whether breaching was the object of the act or failure to act.

(Remainder of page intentionally left blank.)

58

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed in counterparts by their duly authorized officers, all as of the day and year first above written.

| CNB FINANCIAL CORPORATION |     |                                       |
| By:                       |     | /s/ Michael D. Peduzzi                |
| Name:                     |     | Michael D. Peduzzi                    |
| Title:                    |     | President and Chief Executive Officer |

| CNB BANK |     |                                       |
| By:      |     | /s/ Michael D. Peduzzi                |
| Name:    |     | Michael D. Peduzzi                    |
| Title:   |     | President and Chief Executive Officer |

| ESSA BANCORP, INC. |     |                                       |
| By:                |     | /s/ Gary S. Olson                     |
| Name:              |     | Gary S. Olson                         |
| Title:             |     | President and Chief Executive Officer |
| ESSA BANK & TRUST  |     |                                       |
| By:                |     | /s/ Gary S. Olson                     |
| Name:              |     | Gary S. Olson                         |
| Title:             |     | President and Chief Executive Officer |

[Signature Page to Agreement and Plan of Merger]

Exhibit A

Form of ESSA Voting Agreement

VOTING AGREEMENT This VOTING AGREEMENT(this “ Agreement”) is dated as of January 9, 2025, by and between [_________] (the “ Shareholder”) and CNB Financial Corporation, a Pennsylvania corporation (“ CNB”). All terms used herein and not defined herein shall have the meanings assigned thereto in the Merger Agreement (as defined below). WHEREAS,concurrently with the execution of this Agreement, CN