Company: PRMB
Filing Date: 2025-12-02
Form Type: POS AM
Source: 0001193125-25-305432
Chunk: 0

Company: Primo Brands Corp
Filing Date: 2025-12-02
Form: POS AM
Chunk 0
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As filed with the Securities and Exchange Commission on December 2, 2025 Registration No. 333-284501 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 POST-EFFECTIVE AMENDMENT NO. 1 TO FORM S-1ON FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Primo Brands Corporation (Exact name of registrant as specified in its charter)

| Delaware                                                     |     | 99-3483984                      |
| (State or other jurisdiction of                              
 incorporation or organization)                               |     | -I.R.S. Employer                
 Identification Number           |
| 1150 Assembly Drive, Suite 800                               
 Tampa, Florida 33607                                         |     | 900 Long Ridge Road, Building 2 
 Stamford, Connecticut 06902     |
| (Address of principal executive offices, including zip code) |     |                                 |

Registrant’s telephone number, including area code: (813) 544-8515 Hih Song Kim Chief Legal Officer and Corporate Secretary 1150 Assembly Drive, Suite 800 Tampa, Florida 33607 (813) 544-8515 (Address, including zip code, and telephone number, including area code, of agent for service) Copies to: Jason M. Licht R. Charles Cassidy III Latham & Watkins LLP 555 Eleventh Street, NW, Suite 1000 Washington, D.C. 20004 (202) 637-2200 APPROXIMATE DATE OF COMMENCEMENT OF PROPOSED SALE TO THE PUBLIC:From time to time after the effective date of this registration statement. If the only securities being registered on this Form are being offered pursuant to dividend or interest reinvestment plans, please check the following box. ☐ If any of the securities being registered on this Form are to be offered on a delayed or continuous basis pursuant to Rule 415 under the Securities Act of 1933, other than securities offered only in connection with dividend or interest reinvestment plans, check the following box: ☒ If this Form is filed to register additional securities for an offering pursuant to Rule 462(b) under the Securities Act, please check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the same offering. ☐ If this Form is a post-effective amendment filed pursuant to Rule 462(c) under the Securities Act, check the following box and list the Securities Act registration statement number of the earlier effective registration statement for the