X0609 4 2026-09-30 0001886428 Slide Insurance Holdings, Inc. SLDE 0001552968 Lucas Bruce false C/O SLIDE INSURANCE HOLDINGS, INC. 4221 W. BOY SCOUT BLVD., SUITE 200 TAMPA FL 33607 true true true false Chief Executive Officer false Common Stock 2026-09-30 4 M false 22919 0.00 A 2229962 D Common Stock 2026-09-30 4 F false 9019 22.31 D 2220943 D Common Stock 34506199 I By IIM Holdings II, LLC Common Stock 2026-09-30 4 M false 22919 0.00 A 289498 I By Spouse Common Stock 1118756 I By Spouse Common Stock 1925000 I By Emma Cloonen Irrevocable Trust Common Stock 1925000 I By Ava Cloonen Irrevocable Trust Restricted Stock Unit 2026-09-30 4 M false 22919 0 D Common Stock 22919 70714 D Restricted Stock Unit 2026-09-30 4 M false 22919 0 D Common Stock 22919 70714 I By Spouse The securities reported herein are held by IIM Holdings II, LLC, which is an entity controlled by the Reporting Person. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. The amount shown reflects the amount owned by the Reporting Person's spouse after the vesting of 22,919 restricted stock units on September 30, 2026 and the withholding of 9,019 shares of common stock for the payment of the tax liability associated therewith. Represent shares of common stock beneficially owned by the Reporting Person's spouse. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Represent shares of common stock beneficially owned by the Reporting Person's spouse through Securus Risk Management LLC. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Represent shares held through the Emma Cloonen Irrevocable Trust, of which the Reporting Person is the trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Represent shares held through the Ava Cloonen Irrevocable Trust, of which the Reporting Person is the trustee. The Reporting Person disclaims beneficial ownership of these securities except to the extent of his pecuniary interest therein, and the inclusion of these shares in this report shall not be deemed an admission of beneficial ownership of all of the reported shares for purposes of Section 16 or for any other purpose. Each restricted stock unit represents a contingent right to receive one share of the issuer's common stock These restricted stock units vest in 24 equal monthly installments commencing on January 1, 2025 and ending on December 31, 2026, subject to the Reporting Person's continued employment or service through each applicable vesting date. /s/ Andy Omiridis, Attorney-in-Fact for Bruce Lucas 2026-10-02