Company: CCNE
Filing Date: 2025-02-20
Form Type: S-4
Source: 0001193125-25-030821
Chunk: 369

Company: CNB FINANCIAL CORP/PA
Filing Date: 2025-02-20
Form: S-4
Chunk 369
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 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.

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A-58</div>

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, CNB, CNB Bank, a Pennsylvania-chartered nonmember bank and wholly-owned subsidiary of CNB (“ CNB Bank”), ESSA Bancorp, Inc., a Pennsylvania corporation (“ ESSA”), and ESSA Bank & Trust, a Pennsylvania-chartered stock savings bank and wholly-owned subsidiary of ESSA