Company: PENG
Filing Date: 2025-06-30
Form Type: S-8 POS
Source: 0001193125-25-152852
Chunk: 3

Company: Penguin Solutions, Inc.
Filing Date: 2025-06-30
Form: S-8 POS
Chunk 3
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,(viii) Registration No. 333-253064,(ix) Registration No. 333-257724,(x) Registration No. 333-264150,(xi) Registration No. 333-271121,(xii) Registration No. 333-271123,(xiii) Registration No. 333-278587,(xiv) Registration No. 333-278588,(xv) Registration No. 333-286345and (xvi) Registration No. 333-286347.Penguin Solutions Delaware hereby expressly adopts each Registration Statement as its own registration statement for all purposes of the Securities Act and the Securities Exchange Act of 1934, as amended (the “ Exchange Act”). This Post-Effective Amendment constitutes Post-Effective Amendment No. 1 to each of the Registration Statements. PART I INFORMATION REQUIRED IN THE SECTION 10(a) PROSPECTUS The information called for in Part I of Form S-8is not being filed with or included in this Post-Effective Amendment (by incorporation by reference or otherwise) in accordance with the rules and regulations of the U.S. Securities and Exchange Commission (the “ SEC”). The documents containing the information specified in Part I of Form S-8will be delivered to the participants in the equity benefit plans covered by this Post-Effective Amendment as specified by Rule 428(b)(1) under the Securities Act. PART II INFORMATION REQUIRED IN THE REGISTRATION STATEMENT

| Item 3. | Incorporation of Documents by Reference. |

Penguin Solutions Delaware hereby incorporates by reference the following documents previously filed with the SEC (only to the extent “filed” and not “furnished” in accordance with SEC rules):

| (a) 
 (b) |     | Annual Report of Penguin Solutions Cayman on Form 10-K                                                                  
 for the fiscal year ended August 30, 2024, filed with the SEC on October 24, 2024;                                      
 Quarterly Reports of Penguin Solutions Cayman on Form 10-Q for the fiscal quarters ended November 29, 2024 and February 
 28, 2025, filed with the SEC on January                                                                                 
 8, 2025 and April 2, 2025, respectively;                                                                                |
|:----|:----|:------------------------------------------------------------------------------------------------------------------------|
| (c) |     | Penguin Solutions Cayman’s Current Reports on Form                                                                      
 8-K filed with the SEC on October                                                                                       
 3, 2024, October                                                                                                        
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