Company: SLDE
Filing Date: 2025-06-18
Form Type: 424B4
Source: 0001193125-25-142810
Chunk: 223

Company: Slide Insurance Holdings, Inc.
Filing Date: 2025-06-18
Form: 424B4
Chunk 223
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 actions. See “Description of Capital Stock—Stockholders Agreement.”

Lock-upAgreements

Our directors, executive officers and substantially all of our stockholders have agreed, subject to certain exceptions, not to offer, pledge,
sell, contract to sell, sell any option or contract to purchase, purchase any option or contract to sell, grant any option, right or warrant to purchase lend, or otherwise transfer or dispose of, directly or indirectly, or enter into any hedging,
swap or other agreement or transaction that transfers to another, in whole or in part, any of the economic consequences of ownership of any shares of common stock or any securities convertible into or exercisable or exchangeable for shares of common
stock, make any demand for, or exercise any right with respect to, the registration of any lock-up securities, or publicly disclose the intention to do any of the foregoing, for a period of 180 days after the date of this prospectus, without the
prior written consent of the representatives of the underwriters. See “Underwriting—Lock-up Agreements.”

163

UNDERWRITING Barclays Capital Inc. and Morgan Stanley & Co. LLC are acting as the representatives of the underwriters and as joint book-running managers of this offering. Subject to the terms and conditions of the underwriting agreement, which was filed as an exhibit to the registration statement, with respect to the shares being offered, we and the selling stockholders have agreed to sell to the underwriters, and each underwriter has severally agreed to purchase, at the public offering price less the underwriting discounts and commissions set forth on the cover page of this prospectus, the number of shares of common stock listed next to its name in the following table:

| Name                          |     | Number of 
 Shares    |            |
| Barclays Capital Inc.         |     |           |  9,492,857 |
| Morgan Stanley & Co. LLC      |     |           |  9,492,857 |
| Citizens JMP Securities, LLC  |     |           |  1,671,429 |
| Keefe, Bruyette & Woods, Inc. |     |           |  1,671,429 |
| Piper Sandler & Co.           |     |           |  1,671,428 |
| Total                         |     |           | 24,000,000 |

The underwriters are committed to purchase all the common shares offered by us if they purchase any shares. The underwriting agreement also provides that if an