Company: CELH
Filing Date: 2025-04-14
Form Type: DEFA14A
Source: 0001193125-25-080203
Chunk: 0

Company: Celsius Holdings, Inc.
Filing Date: 2025-04-14
Form: DEFA14A
Chunk 0
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UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

| Filed by the Registrant                    |     | ☒ |
| Filed by a Party other than the Registrant |     | ☐ |

Check the appropriate box:

| ☐ | Preliminary Proxy Statement |

| ☐ | Confidential, for Use of the Commission Only (as permitted by Rule 
 14a-6(e)(2))                                                       |

| ☐ | Definitive Proxy Statement |

| ☒ | Definitive Additional Materials |

| ☐ | Soliciting Material Pursuant to Rule Sec.240.14a-12 |

Celsius Holdings, Inc. (Name of Registrant as Specified in Its Charter) (Name of Person(s) Filing Proxy Statement, if other than the Registrant) Payment of Filing Fee (Check all boxes that apply):

| ☒ | No fee required |

| ☐ | Fee paid previously with preliminary materials: |

| ☐ | Fee computed on table in exhibit required by Item 25(b) per Exchange Act Rules 
 14a-6(i)(1) and 0-11.                                                          |

Your control number Your vote matters! Meeting Materials: Notice of Meeting, Proxy Statement & Annual Report on Form 10-K,and Proxy Card Important Notice Regarding the Availability of Proxy Materials for the Stockholders Meeting To Be Held On May 28, 2025 For Stockholders of record as of April 1, 2025 To order paper materials, use one of the following methods. Internet: www.investorelections.com/CELH Call: 1-866-648-8133Email: paper@investorelections.com * If requesting material by e-mail,please send a blank e-mailwith the 12 digit control number (located below) in the subject line. No other requests, instructions or other inquiries should be included with your e-mailrequesting material. Have the 12 digit control number located in the box above available when you access the website and follow the instructions. Copyright © 2025 BetaNXT, Inc. or its affiliates. All Rights Reserved Celsius Holdings, Inc. Annual Meeting of Stockholders Wednesday, May 28, 2025 8:00 AM, Eastern Time Annual Meeting to be held live via the Internet—please visit www.proxydocs.com/CELH for more details. You must