Company: SLDE
Filing Date: 2025-06-17
Form Type: S-1MEF
Source: 0001193125-25-142181
Chunk: 2

Company: Slide Insurance Holdings, Inc.
Filing Date: 2025-06-17
Form: S-1MEF
Chunk 2
---
as amended (File No. 333-287556), including all exhibits thereto (the “Initial Registration Statement”), filed by the Registrant with the Securities and Exchange Commission (the
“Commission”) pursuant to the Securities Act, which was declared effective by the Commission on June 17, 2025, are incorporated by reference into this Registration Statement.

The required opinion and consents are listed on the below Exhibit Index and filed herewith.

EXHIBIT INDEX

| Exhibit Number |     | Description                                                                                                                                                                |
| 5.1            |     | Opinion of Davis Polk & Wardwell LLP                                                                                                                                       |
| 23.1           |     | Consent of Forvis Mazars, LLP                                                                                                                                              |
| 23.2           |     | Consent of Davis Polk & Wardwell LLP (included in Exhibit 5.1)                                                                                                             |
| 24.1*          |     | Powers of Attorney (included on signature page to the Registration Statement on Form S-1 (File No. 333-287556, filed on May 23, 2025 and incorporated herein by reference) |
| 107            |     | Filing Fee Table                                                                                                                                                           |

| * | Previously filed |

SIGNATURES Pursuant to the requirements of the Securities Act of 1933, the Registrant has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Tampa, State of Florida, on this June 17, 2025.

| SLIDE INSURANCE HOLDINGS, INC. |     |                                             |
| By:                            |     | /s/ Bruce Lucas                             |
|                                |     | Name: Bruce Lucas                           |
|                                |     | Title: Chief Executive Officer and Chairman |

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed by the following persons in the capacities and on the dates indicated.

| Name             
 /s/ Bruce Lucas  
 Bruce Lucas      
 /s/ Jesse Schalk 
 Jesse Schalk     |     | Title                                                                                                
 Chief Executive Officer and Chairman                                                                 
 (principal executive officer)                                                                        
 President and Chief Financial Officer (principal financial officer and principal accounting officer) |     | Date          
 June 17, 2025 
 June 17, 2025 |
|:-----------------|:----|:-----------------------------------------------------------------------------------------------------|:----|:--------------|
| *                
 Shannon Lucas    |     | Chief Operating Officer, Chief Risk Officer