Company: FRME
Filing Date: 2025-10-17
Form Type: S-4/A
Source: 0001193125-25-242318
Chunk: 201

Company: FIRST MERCHANTS CORP
Filing Date: 2025-10-17
Form: S-4/A
Chunk 201
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 year first above written and have caused this Agreement to be executed and attested by their duly authorized officers.

| FIRST MERCHANTS CORPORATION         |     |                                                       |
| By:                                 |     | /s/ Mark K. Hardwick                                  |
|                                     |     | Mark K. Hardwick, Chief Executive Officer             |
| FIRST SAVINGS FINANCIAL GROUP, INC. |     |                                                       |
| By:                                 |     | /s/ Larry W. Myers                                    |
|                                     |     | Larry W. Myers, President and Chief Executive Officer |

A-50

EXHIBIT A

VOTING AGREEMENT

THIS
VOTING AGREEMENT (this “Agreement”) is entered into this 24th day of September, 2025, by and among FIRST MERCHANTS CORPORATION, an Indiana corporation (“First Merchants”), and the undersigned shareholders (each, a
“Shareholder”, and collectively, the “Shareholders”) of FIRST SAVINGS FINANCIAL GROUP, INC., an Indiana corporation (“First Savings”).

W I T N E S S E T H:

In
consideration of the execution by First Merchants of the Agreement and Plan of Merger between First Merchants and First Savings of even date herewith (the “Merger Agreement”), the undersigned Shareholders of First Savings hereby agree
that each of them, severally and not jointly, shall cause all First Savings common shares owned by him/her of record and beneficially, including, without limitation, all shares owned by him/her individually, all shares owned jointly by him/her and
his/her spouse, all shares owned by any minor children (or any trust for their benefit), all shares owned by any business of which such Shareholder (if such Shareholder is a director of First Savings) is a principal shareholder (but in each such
case only to the extent the Shareholder has the right to vote or direct the voting of such shares), and specifically including all shares shown as owned directly or beneficially by such Shareholder on attached
hereto or acquired subsequently hereto (collectively, the “Shares”), to be voted, in person or by proxy, in favor of the merger of First Savings with and into First Merchants in accordance with and pursuant to the terms of the Merger
Agreement at the annual or special meeting of shareholders of First Savings called for that purpose. Notwithstanding any other provision of this Agreement to the contrary, each Shareholder shall be permitted to vote such Shares