Company: FRME
Filing Date: 2025-09-25
Form Type: 425
Source: 0001193125-25-216443
Chunk: 102

Company: FIRST MERCHANTS CORP
Filing Date: 2025-09-25
Form: 425
Chunk 102
---
                         |
|       |     | Printed:                          |     | Mark K. Hardwick        |
|       |     | Its:                              |     | Chief Executive Officer |

| ATTEST: |     |                   |
|         |     | Secretary/Cashier |

| “BANK” |     | FIRST SAVINGS BANK, an         
 Indiana state commercial bank, |     |                                       |
|        |     | By:                            |     |                                       |
|        |     | Printed:                       |     | Larry W. Myers                        |
|        |     | Its:                           |     | President and Chief Executive Officer |

| ATTEST: |     |                   |
|         |     | Secretary/Cashier |

Exhibit 10.1

Execution Version

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