<SEC-DOCUMENT>0000950142-25-002016.txt : 20250724
<SEC-HEADER>0000950142-25-002016.hdr.sgml : 20250724
<ACCEPTANCE-DATETIME>20250724171504
ACCESSION NUMBER:		0000950142-25-002016
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250722
FILED AS OF DATE:		20250724
DATE AS OF CHANGE:		20250724

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Kaiser Larry
		CENTRAL INDEX KEY:			0002048184
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-42408
		FILM NUMBER:		251147866

	MAIL ADDRESS:	
		STREET 1:		100 KING ST W
		STREET 2:		SUITE 3400
		CITY:			TORONTO
		STATE:			Z4
		ZIP:			M5X 1A4

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Medicus Pharma Ltd.
		CENTRAL INDEX KEY:			0001997296
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				981778211
		STATE OF INCORPORATION:			A6
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		300 CONSHOHOCKEN STATE RD.
		STREET 2:		SUITE 200
		CITY:			W. CONSHOHOCKEN
		STATE:			PA
		ZIP:			19428
		BUSINESS PHONE:		610-540-7515

	MAIL ADDRESS:	
		STREET 1:		300 CONSHOHOCKEN STATE RD.
		STREET 2:		SUITE 200
		CITY:			W. CONSHOHOCKEN
		STATE:			PA
		ZIP:			19428
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>es250658441_4-kaiser.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-07-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001997296</issuerCik>
        <issuerName>Medicus Pharma Ltd.</issuerName>
        <issuerTradingSymbol>MDCX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002048184</rptOwnerCik>
            <rptOwnerName>Kaiser Larry</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>300 CONSHOHOCKEN STATE ROAD</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>W. CONSHOHOCKEN</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19428</rptOwnerZipCode>
            <rptOwnerStateDescription></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>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2.75</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2029-12-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>15000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>15000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.08</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-07-22</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>25000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F3"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-07-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents an exercise price of $3.95 Canadian dollars, converted to U.S. dollars at the daily average exchange rate of $1.00 to CAD$1.4379 reported by the Bank of Canada on December 30, 2024.</footnote>
        <footnote id="F2">The board of directors of Medicus Pharma Ltd. (the ?Board?) approved, during a Board meeting held on July 22, 2025, accelerated vesting of the Reporting Person's options that were otherwise unvested and scheduled to vest quarterly in four equal installments over one year from the initial grant date of December 17, 2024. All these options are now vested.</footnote>
        <footnote id="F3">The option was granted on July 22, 2025. The option is scheduled to vest quarterly in four equal installments over one year.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Raza Bokhari, as Attorney-in-Fact, for Larry Kaiser</signatureName>
        <signatureDate>2025-07-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
