Company: SLDE
Filing Date: 2025-06-20
Form Type: S-8
Source: 0001193125-25-143281
Chunk: 1

Company: Slide Insurance Holdings, Inc.
Filing Date: 2025-06-20
Form: S-8
Chunk 1
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 10(a) PROSPECTUS

The information specified in Item 1 and Item 2 of Part I of Form S-8 is omitted from this Registration Statement on
Form S-8 (this “Registration Statement”) in accordance with the provisions of Rule 428 under the Securities Act of 1933, as amended (the “Securities Act”), and the introductory note to Part
I of the Form S-8 instructions. The documents containing the information specified in Part I will be delivered to the participants in the plans as required by Rule 428(b)(1).

PART II

INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

Item 3. Incorporation of Documents by Reference.

The following documents filed by Slide Insurance Holdings, Inc. (the “Registrant”) with the Securities and Exchange Commission (the
“Commission”) pursuant to the Securities and Exchange Act of 1934, as amended (the “Exchange Act”), are incorporated by reference herein:

(1) Amendment No.
1 to the Registrant’s Registration Statement on Form S-1 filed with the Commission on June 9, 2025 (File No. 333-287556), which contains the Registrant’s audited financial statements for the latest fiscal year for which such financial statements have been filed (including any schedules appended thereto);

(2) The Registrant’s prospectus, filed with the Commission on June 17, 2025 (File
No. 333-287556), relating to the Registrant’s Registration Statement on Form S-1 (File No. 333-287556), including any amendments or supplements thereto; and

(3) The description of the Registrant’s capital stock which is contained in the Registrant’s Registration Statement on Form 8-A (File No. 001-42707), filed by the Registrant with the Commission on June 17, 2025, including any amendments or supplements thereto.

In addition, all documents filed by the Registrant pursuant to Sections 13(a), 13(c), 14 or 15(d) of the Exchange Act, after the date of this
Registration Statement and prior to the filing of a post-effective amendment that indicates that all securities offered hereby have been sold or which deregisters all securities then remaining unsold, are incorporated by reference in this
Registration Statement and are a part hereof from the date of filing of such documents; except as to any portion of any future annual or quarterly report to stockholders or document or current report