Company: RNST
Filing Date: 2025-04-11
Form Type: S-4 POS
Source: 0000715072-25-000128
Chunk: 1

Company: RENASANT CORP
Filing Date: 2025-04-11
Form: S-4 POS
Chunk 1
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 company   |     | ☐ |

If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☐

### EXPLANATORY NOTE
Renasant Corporation (“Renasant” or the “Registrant”) hereby amends its Registration Statement on Form S-4 (File No. 333-281851), filed with the Securities and Exchange Commission (the “Commission”) on August 30, 2024, as amended on September 13, 2024, and declared effective by the Commission on September 17, 2024 (the “Form S-4”), by filing this Post-Effective Amendment No. 1 on Form S-8 (the “Post-Effective Amendment No. 1”). The Form S-4, as amended by this Post-Effective Amendment No. 1, is referred to as the “Registration Statement.” The Registrant filed the Form S-4 in connection with the merger of The First Bancshares, Inc., a Mississippi corporation (“The First”), with and into the Registrant, with the Registrant as the surviving corporation (the “Merger”). This Post-Effective Amendment No. 1 relates to shares of the common stock, par value $5.00 per share, of the Registrant (“Registrant Common Stock”) originally registered on the Form S-4 that may be issued in connection with equity awards (the “FBMS Awards”) previously granted under The First Bancshares, Inc. 2007 Stock Incentive Plan, as amended, which FBMS Awards were assumed by the Registrant in connection with the Merger, which was consummated on April 1, 2025. At the effective time of the Merger, each outstanding FBMS Award was converted into a corresponding award with respect to Registrant Common Stock.

# PART I
<div align='center'>INFORMATION REQUIRED IN THE SECTION 10(A) PROSPECTUS</div>

## Item 1.

#### Plan Information.*

## Item 2.
Registrant Information and Employee Plan Annual Information.*

* In accordance with Rule 428 under the Securities Act and the Note to Part I of Form S-8, the information required by this Part I of Form S-8 is not and will not be filed with the Commission either as part of this Registration Statement or as prospectuses or prospectus supplements pursuant to Rule 424