Company: HBAN
Filing Date: 2025-08-15
Form Type: 424B3
Source: 0001140361-25-031511
Chunk: 283

Company: HUNTINGTON BANCSHARES INC /MD/
Filing Date: 2025-08-15
Form: 424B3
Chunk 283
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 amendments or waivers hereto or thereto, to the extent signed and delivered by e-mail delivery of a “.pdf” format data file, shall be treated in all manner and respects as an original agreement or instrument and shall be considered to have the same binding legal effect as if it were the original signed version thereof delivered in person. No party hereto or to any such agreement or instrument shall raise the use of e-mail delivery of a “.pdf” format data file to deliver a signature to this Agreement or any amendment hereto or the fact that any signature or agreement or instrument was transmitted or communicated through e-mail delivery of a “.pdf” format data file as a defense to the formation of a contract and each party hereto forever waives any such defense.

<div align='center'>[Signature Page Follows]

A-51</div>

TABLE OF CONTENTS

IN WITNESS WHEREOF, the parties hereto have caused this Agreement to be executed by their respective officers thereunto duly authorized as of the date first above written.

| HUNTINGTON BANCSHARES INCORPORATED |     |                         |     |                                                 |
| By:                                |     | /s/ Stephen D. Steinour |     |                                                 |
|                                    |     | Name:                   |     | Stephen D. Steinour                             |
|                                    |     | Title:                  |     | Chairman, President and Chief Executive Officer |

[ Signature Page to Agreement and Plan of Merger] A-52

TABLE OF CONTENTS

| VERITEX HOLDINGS, INC. |     |                             |     |                                                              |
| By:                    |     | /s/ C. Malcolm Holland, III |     |                                                              |
|                        |     | Name:                       |     | C. Malcolm Holland, III                                      |
|                        |     | Title:                      |     | Chairman of the Board, President and Chief Executive Officer |

[ Signature Page to Agreement and Plan of Merger] A-53

#### TABLE OF CONTENTS

### EXHIBIT A

### FORM OF BANK MERGER AGREEMENT
<div align='center'>Exh. A-1</div>

#### TABLE OF CONTENTS

### FORM OF AGREEMENT AND PLAN OF MERGER OF

### VERITEX COMMUNITY BANK

### WITH AND INTO

### THE HUNTINGTON NATIONAL BANK
This Agreement and Plan of Merger (this “ Agreement ”), dated as of [•], 2025, is made by and between The