<?xml version="1.0"?>
<edgarSubmission>

    <schemaVersion>X0708</schemaVersion>

    <submissionType>D</submissionType>

    <testOrLive>LIVE</testOrLive>

    <primaryIssuer>
        <cik>0001797409</cik>
        <entityName>Cambrian BioPharma Inc</entityName>
        <issuerAddress>
            <street1>228 Park Avenue South</street1>
            <street2>Suite 66643</street2>
            <city>NEW YORK</city>
            <stateOrCountry>NY</stateOrCountry>
            <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
            <zipCode>10003</zipCode>
        </issuerAddress>
        <issuerPhoneNumber>(516) 962-3186</issuerPhoneNumber>
        <jurisdictionOfInc>DELAWARE</jurisdictionOfInc>
        <edgarPreviousNameList>
            <previousName>Cambrian BioPharma Inc.</previousName>
        </edgarPreviousNameList>
        <entityType>Corporation</entityType>
        <yearOfInc>
            <overFiveYears>true</overFiveYears>
        </yearOfInc>
    </primaryIssuer>

    <relatedPersonsList>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>James</firstName>
                <lastName>Peyer</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>228 Park Avenue South</street1>
                <street2>Suite 66643</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10003</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Juliette</firstName>
                <lastName>Han</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>228 Park Avenue South</street1>
                <street2>Suite 66643</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10003</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Mark</firstName>
                <lastName>Nuttall</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>228 Park Avenue South</street1>
                <street2>Suite 66643</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10003</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Ruth</firstName>
                <lastName>Thieroff-Ekerdt</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>228 Park Avenue South</street1>
                <street2>Suite 66643</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10003</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>William</firstName>
                <lastName>DeVaul</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>228 Park Avenue South</street1>
                <street2>Suite 66643</street2>
                <city>New York</city>
                <stateOrCountry>NY</stateOrCountry>
                <stateOrCountryDescription>NEW YORK</stateOrCountryDescription>
                <zipCode>10003</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Executive Officer</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Christian</firstName>
                <lastName>Angermeyer</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Centris Business Gateway, Level 0-C</street1>
                <street2>Triq Is-Salib tal-Imriehel, Zone 3, CBD</street2>
                <city>Birkirkara</city>
                <stateOrCountry>O1</stateOrCountry>
                <stateOrCountryDescription>MALTA</stateOrCountryDescription>
                <zipCode>CBD 3020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Maryanna</firstName>
                <lastName>Saenko</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>465 First Street</street1>
                <city>Los Altos</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>94022</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Brenton</firstName>
                <middleName>L.</middleName>
                <lastName>Saunders</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>400 Somerset Corporate Boulevard</street1>
                <city>Bridgewater</city>
                <stateOrCountry>NJ</stateOrCountry>
                <stateOrCountryDescription>NEW JERSEY</stateOrCountryDescription>
                <zipCode>08807</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Paul</firstName>
                <lastName>Farr</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>201 Santa Monica Boulevard</street1>
                <city>Santa Monica</city>
                <stateOrCountry>CA</stateOrCountry>
                <stateOrCountryDescription>CALIFORNIA</stateOrCountryDescription>
                <zipCode>90401</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Martin</firstName>
                <lastName>Gunhaga</lastName>
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            <relatedPersonAddress>
                <street1>Vastra Kyrkogatan 1 A</street1>
                <city>Umea</city>
                <stateOrCountry>V7</stateOrCountry>
                <stateOrCountryDescription>SWEDEN</stateOrCountryDescription>
                <zipCode>SE-903 29</zipCode>
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            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
        <relatedPersonInfo>
            <relatedPersonName>
                <firstName>Lorin</firstName>
                <lastName>Van Nuland</lastName>
            </relatedPersonName>
            <relatedPersonAddress>
                <street1>Centris Business Gateway, Level 0/C</street1>
                <street2>Triq Is-Salib tal-Imriehel, Zone 3, CBD</street2>
                <city>Birkirkara</city>
                <stateOrCountry>O1</stateOrCountry>
                <stateOrCountryDescription>MALTA</stateOrCountryDescription>
                <zipCode>CBD 3020</zipCode>
            </relatedPersonAddress>
            <relatedPersonRelationshipList>
                <relationship>Director</relationship>
            </relatedPersonRelationshipList>
            <relationshipClarification></relationshipClarification>
        </relatedPersonInfo>
    </relatedPersonsList>

    <offeringData>
        <industryGroup>
            <industryGroupType>Biotechnology</industryGroupType>
        </industryGroup>
        <issuerSize>
            <revenueRange>Decline to Disclose</revenueRange>
        </issuerSize>
        <federalExemptionsExclusions>
            <item>06c</item>
        </federalExemptionsExclusions>
        <typeOfFiling>
            <newOrAmendment>
                <isAmendment>false</isAmendment>
            </newOrAmendment>
            <dateOfFirstSale>
                <value>2026-06-30</value>
            </dateOfFirstSale>
        </typeOfFiling>
        <durationOfOffering>
            <moreThanOneYear>false</moreThanOneYear>
        </durationOfOffering>
        <typesOfSecuritiesOffered>
            <isEquityType>true</isEquityType>
        </typesOfSecuritiesOffered>
        <businessCombinationTransaction>
            <isBusinessCombinationTransaction>true</isBusinessCombinationTransaction>
            <clarificationOfResponse>46,210,122 shares were offered in a business combination whereby the Issuer issued 7,988,207 Common and 38,221,915 Preferred shares to shareholders of a certain company in exchange for their shares, increasing the Issuer's ownership to 100%.</clarificationOfResponse>
        </businessCombinationTransaction>
        <minimumInvestmentAccepted>0</minimumInvestmentAccepted>
        <salesCompensationList></salesCompensationList>
        <offeringSalesAmounts>
            <totalOfferingAmount>129751064</totalOfferingAmount>
            <totalAmountSold>123751064</totalAmountSold>
            <totalRemaining>6000000</totalRemaining>
            <clarificationOfResponse></clarificationOfResponse>
        </offeringSalesAmounts>
        <investors>
            <hasNonAccreditedInvestors>false</hasNonAccreditedInvestors>
            <totalNumberAlreadyInvested>80</totalNumberAlreadyInvested>
        </investors>
        <salesCommissionsFindersFees>
            <salesCommissions>
                <dollarAmount>0</dollarAmount>
            </salesCommissions>
            <findersFees>
                <dollarAmount>0</dollarAmount>
            </findersFees>
            <clarificationOfResponse></clarificationOfResponse>
        </salesCommissionsFindersFees>
        <useOfProceeds>
            <grossProceedsUsed>
                <dollarAmount>0</dollarAmount>
            </grossProceedsUsed>
            <clarificationOfResponse></clarificationOfResponse>
        </useOfProceeds>
        <signatureBlock>
            <authorizedRepresentative>false</authorizedRepresentative>
            <signature>
                <issuerName>Cambrian BioPharma Inc</issuerName>
                <signatureName>/s/ William DeVaul</signatureName>
                <nameOfSigner>William DeVaul</nameOfSigner>
                <signatureTitle>Chief Legal Officer</signatureTitle>
                <signatureDate>2026-07-15</signatureDate>
            </signature>
        </signatureBlock>
    </offeringData>
</edgarSubmission>
