Company: CELH
Filing Date: 2025-11-12
Form Type: 8-K/A
Source: 0001193125-25-278019
Chunk: 2

Company: Celsius Holdings, Inc.
Filing Date: 2025-11-12
Form: 8-K/A
Chunk 2
---
8-K/Aand are incorporated herein by reference.

| (b) | Pro forma financial information. |

Unaudited pro forma condensed combined financial statements as of and for the year ended December 31, 2024 and for the six months ended June 30, 2025 are filed herewith as Exhibit 99.3 to this Current Report on Form 8-K/Aand are incorporated herein by reference.

| (d) | Exhibits |

| Exhibit 
 No      
 23.1    
 99.1    
 99.2    |     | Description                                                                                                                                                                                                             
 Consent of Independent Certified Public Accountants                                                                                                                                                                     
 Audited abbreviated financial statements of Rockstar Energy Drink Assets in the United States and Canada as of and for the years ended December 28, 2024 and December 30, 2023                                          
 Unaudited interim abbreviated financial statements of Rockstar Energy Drink Assets in the United States and Canada as of June 14, 2025 and December 28, 2024 and for the 24 weeks ended June 14, 2025 and June 15, 2024 |
|:--------|:----|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|
| 99.3    |     | Unaudited pro forma condensed combined financial statements as of and for the year ended December 31, 2024 and for the six months ended June 30, 2025                                                                   |
| 104     |     | Cover Page Interactive Data File (embedded within the Inline XBRL document)                                                                                                                                             |

SIGNATURE Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.

| Date: November 12, 2025 |     | CELSIUS HOLDINGS, INC. 
 By:                    |     | /s/ Jarrod Langhans                      |
|:------------------------|:----|:-----------------------|:----|:-----------------------------------------|
|                         |     |                        |     | Jarrod Langhans, Chief Financial Officer |