<SEC-DOCUMENT>0001213900-25-052370.txt : 20250609
<SEC-HEADER>0001213900-25-052370.hdr.sgml : 20250609
<ACCEPTANCE-DATETIME>20250609090848
ACCESSION NUMBER:		0001213900-25-052370
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250605
FILED AS OF DATE:		20250609
DATE AS OF CHANGE:		20250609

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Sturge Simon
		CENTRAL INDEX KEY:			0001920785
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39630
		FILM NUMBER:		251032959

	MAIL ADDRESS:	
		STREET 1:		DORFSTRASSE 29
		CITY:			ZUG
		STATE:			V8
		ZIP:			6300

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MoonLake Immunotherapeutics
		CENTRAL INDEX KEY:			0001821586
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				000000000
		STATE OF INCORPORATION:			E9
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		DORFSTRASSE 29
		CITY:			ZUG
		STATE:			V8
		ZIP:			6300
		BUSINESS PHONE:		41 41 510 8022

	MAIL ADDRESS:	
		STREET 1:		DORFSTRASSE 29
		CITY:			ZUG
		STATE:			V8
		ZIP:			6300

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Helix Acquisition Corp
		DATE OF NAME CHANGE:	20200818
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-06-05</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001821586</issuerCik>
        <issuerName>MoonLake Immunotherapeutics</issuerName>
        <issuerTradingSymbol>MLTX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001920785</rptOwnerCik>
            <rptOwnerName>Sturge Simon</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O MOONLAKE IMMUNOTHERAPEUTICS</rptOwnerStreet1>
            <rptOwnerStreet2>DORFSTRASSE 29</rptOwnerStreet2>
            <rptOwnerCity>ZUG</rptOwnerCity>
            <rptOwnerState>V8</rptOwnerState>
            <rptOwnerZipCode>6300</rptOwnerZipCode>
            <rptOwnerStateDescription>SWITZERLAND</rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Option to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>48.83</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-06-05</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6682</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-06-05</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A ordinary shares, par value $0.0001 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>6682</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6682</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option represents a right to purchase a total of 6,682 Class A Ordinary Shares of the Issuer, which will vest in full the earlier of (i) June 5, 2026 and (ii) the date of the Issuer's next annual general meeting of shareholders, subject to the Reporting Person's continued service to the Issuer.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Matthias Bodenstedt, Attorney-in-fact for Simon Sturge</signatureName>
        <signatureDate>2025-06-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
