Company: SMNR
Filing Date: 2025-08-13
Form Type: 424B3
Source: 0001193125-25-179226
Chunk: 19

Company: Semnur Pharmaceuticals, Inc.
Filing Date: 2025-08-13
Form: 424B3
Chunk 19
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 Scilex Convertible
Promissory Note, to the Trust Account to extend the time the Company has to consummate an initial business combination to April 11, 2025.

As of March 31, 2025, Scilex had deposited an aggregate of $120,482, drawn down from the Scilex Convertible Promissory Note, to the Trust
Account to extend the time the Company has to consummate an initial business combination to April 11, 2025.

On April 11, 2025 and May 9,
2025, Scilex deposited an aggregate total of $1,750, drawn down from the Scilex Convertible Promissory Note, to the Trust Account to extend the time the Company has to consummate an initial business combination to June 11, 2025. On June 11, 2025,
Scilex deposited an additional $874.78, drawn down from the Scilex Convertible Promissory Note, to the Trust Account to extend the time the Company has to consummate an initial business combination to July 11, 2025.

On July 11, 2025, Scilex deposited an additional $874.78, drawn down from the Scilex Convertible Promissory Note, to the Trust Account to
extend the time the Company has to consummate an initial business combination to August 11, 2025.

xii

On August 11, 2025, Scilex deposited an additional $874.78, drawn down from the Scilex Convertible Promissory Note, to the Trust Account to extend the time the Company has to consummate an initial business combination to September 11, 2025. Following the delisting from Nasdaq, the Public Units, Denali Class A Ordinary Shares and Public Warrants commenced trading on the OTC Markets under the symbols “DNQUF,” “DNQAF” and “DNQWF,” respectively. As a result, Denali may face significant material adverse consequences, including:

| • |     | Denali may no longer be attractive as a merger partner once its securities are no longer listed on an exchange, 
 which would significantly hinder the ability to complete a business combination;                                |

| • |     | a limited availability of market quotations for Denali’s securities; |

| • |     | a determination that Denali’s securities are a “penny stock,” which will require brokers                                                                                   
 trading in