<SEC-DOCUMENT>0001950047-25-005599.txt : 20250811
<SEC-HEADER>0001950047-25-005599.hdr.sgml : 20250811
<ACCEPTANCE-DATETIME>20250811160607
ACCESSION NUMBER:		0001950047-25-005599
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250811
DATE AS OF CHANGE:		20250811

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Mirum Pharmaceuticals, Inc.
		CENTRAL INDEX KEY:			0001759425
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				831281555
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-38981
		FILM NUMBER:		251202009

	BUSINESS ADDRESS:	
		STREET 1:		989 EAST HILLSDALE BOULEVARD, SUITE 300
		CITY:			FOSTER CITY
		STATE:			CA
		ZIP:			94404
		BUSINESS PHONE:		650-667-4085

	MAIL ADDRESS:	
		STREET 1:		989 EAST HILLSDALE BOULEVARD, SUITE 300
		CITY:			FOSTER CITY
		STATE:			CA
		ZIP:			94404

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Peetz Christopher
		CENTRAL INDEX KEY:			0001614740
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		C/O TOBIRA THERAPEUTICS, INC.
		STREET 2:		701 GATEWAY BOULEVARD, #200
		CITY:			SOUTH SAN FRANCISCO
		STATE:			CA
		ZIP:			94080
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
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    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001614740</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
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            <liveTestFlag>LIVE</liveTestFlag>



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    <formData>
        <issuerInfo>
            <issuerCik>0001759425</issuerCik>
            <issuerName>MIRUM PHARMACEUTICALS, INC.</issuerName>
            <secFileNumber>001-38981</secFileNumber>
            <issuerAddress>
                <ns2:street1>989 East Hillsdale Boulevard</ns2:street1>
                <ns2:street2>Suite 300</ns2:street2>
                <ns2:city>Foster City</ns2:city>
                <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                <ns2:zipCode>94404</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(650) 667-4085</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>CHRISTOPHER PEETZ</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
                <relationshipToIssuer>Director</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>40000</noOfUnitsSold>
            <aggregateMarketValue>2480000.00</aggregateMarketValue>
            <noOfUnitsOutstanding>50237647</noOfUnitsOutstanding>
            <approxSaleDate>08/11/2025</approxSaleDate>
            <securitiesExchangeName>NASDAQ</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>08/11/2025</acquiredDate>
            <natureOfAcquisitionTransaction>Stock Option Exercise</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>ISSUER</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>40000</amountOfSecuritiesAcquired>
            <paymentDate>08/11/2025</paymentDate>
            <natureOfPayment>Cash</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <securitiesSoldInPast3Months>
            <sellerDetails>
                <name>CHRISTOPHER PEETZ</name>
                <address>
                    <ns2:street1>989 East Hillsdale Boulevard</ns2:street1>
                    <ns2:street2>Suite 300</ns2:street2>
                    <ns2:city>Foster City</ns2:city>
                    <ns2:stateOrCountry>CA</ns2:stateOrCountry>
                    <ns2:zipCode>94404</ns2:zipCode>
                </address>
            </sellerDetails>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <saleDate>08/07/2025</saleDate>
            <amountOfSecuritiesSold>40000</amountOfSecuritiesSold>
            <grossProceeds>2210040.00</grossProceeds>
        </securitiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>08/11/2025</noticeDate>
            <planAdoptionDates>
                <planAdoptionDate>11/22/2024</planAdoptionDate>
            </planAdoptionDates>
            <signature>/s/ Christopher James Peetz</signature>
        </noticeSignature>
    </formData>
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</SEC-DOCUMENT>
