Company: MLTX
Filing Date: 2025-04-22
Form Type: DEFA14A
Source: 0001140361-25-014925
Chunk: 0

Company: MoonLake Immunotherapeutics
Filing Date: 2025-04-22
Form: DEFA14A
Chunk 0
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<div align='center'>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
(Amendment No. )</div>

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

<div align='center'>Check the appropriate box:</div>

| ☐ | 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 under §240.14a-12                                           |

<div align='center'>MoonLake Immunotherapeutics (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):</div>

| ☒ | 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. |

<div align='center'>Your Vote Counts!MOONLAKE IMMUNOTHERAPEUTICS2024 Annual General Meeting of ShareholdersVote by June 4, 202411:59 PMET MOONLAKE IMMUNOTHERAPEUTICSDORFSTRASSE 29ZUG, SWITZERLAND 6300 You invested in MOONLAKE IMMUNOTHERAPEUTICS and it’s time to vote!You have the right to vote on proposals being presented at the Annual General Meeting of Shareholders. This is an important notice regarding the availability of proxy materials for the shareholder meeting to be held on June 5, 2024.Get informed before you voteView the Notice, Proxy Statement and Annual Report online OR you can receive a free paper or email copy of the material(s) by requesting prior to May 22, 2024. If you would like to request a copy of the material(s) for this and/or future shareholder meetings, you may (1) visit www.ProxyVote.com, (2) call 1-800-579-1639 or (3