Company: IIIV
Filing Date: 2025-01-10
Form Type: DEFA14A
Source: 0001728688-25-000008
Chunk: 0

Company: i3 Verticals, Inc.
Filing Date: 2025-01-10
Form: DEFA14A
Chunk 0
---
### UNITED STATES

### SECURITIES AND EXCHANGE COMMISSION

#### Washington, D.C. 20549

#### SCHEDULE 14A
<div align='center'>PROXY STATEMENT PURSUANT TO SECTION 14(A) OF THE SECURITIES</div>

#### EXCHANGE ACT OF 1934
Filed by the Registrant ☒ Filed by a Party other than the Registrant ☐

Check the appropriate box:

| ☐ |     | Preliminary Proxy Statement                                                     |
| ☐ |     | Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) |
| ☐ |     | Definitive Proxy Statement                                                      |
| ☒ |     | Definitive Additional Materials                                                 |
| ☐ |     | Soliciting Material Under §240.14a-12                                           |

<div align='center'>i3 Verticals, Inc.</div>

<div align='center'>(Name of Registrant as Specified in its Charter)</div>

| (Name of Person(s) Filing Proxy Statement, if Other Than the Registrant) |

Payment of Filing Fee (Check all boxes that apply):

| ☒ |     | No fee required.                                                                                     |
| ☐ |     | Fee paid previously with preliminary materials.                                                      |
| ☐ |     | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 14a-6(i)(1) and 0-11. |