<SEC-DOCUMENT>0001567619-20-005679.txt : 20200304
<SEC-HEADER>0001567619-20-005679.hdr.sgml : 20200304
<ACCEPTANCE-DATETIME>20200304214831
ACCESSION NUMBER:		0001567619-20-005679
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200303
FILED AS OF DATE:		20200304
DATE AS OF CHANGE:		20200304

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Davis George Eric
		CENTRAL INDEX KEY:			0001380710

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26727
		FILM NUMBER:		20689527

	MAIL ADDRESS:	
		STREET 1:		C/O BIOMARIN PHARMACEUTICAL INC.
		STREET 2:		105 DIGITAL DRIVE
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOMARIN PHARMACEUTICAL INC
		CENTRAL INDEX KEY:			0001048477
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				680397820
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		105 DIGITAL DRIVE
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949
		BUSINESS PHONE:		4155066700

	MAIL ADDRESS:	
		STREET 1:		105 DIGITAL DRIVE
		CITY:			NOVATO
		STATE:			CA
		ZIP:			94949
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-03-03</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001048477</issuerCik>
        <issuerName>BIOMARIN PHARMACEUTICAL INC</issuerName>
        <issuerTradingSymbol>BMRN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001380710</rptOwnerCik>
            <rptOwnerName>Davis George Eric</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O BIOMARIN PHARMACEUTICAL INC.</rptOwnerStreet1>
            <rptOwnerStreet2>770 LINDARO ST.</rptOwnerStreet2>
            <rptOwnerCity>SAN RAFAEL</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>EVP, General Counsel</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2020-03-03</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>9586</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>78295</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Transaction Date is the date that the Issuer's Board of Directors' Compensation Committee Chair certified that the reporting person earned the Restricted Stock Units (RSUs), which are convertible into shares of the Issuer's Common Stock on a 1:1 basis.</footnote>
        <footnote id="F2">Represents the total number of RSUs earned pursuant to a calculation set forth in the performance-based RSU awards previously granted under the Issuer's 2017 Equity Incentive Plan based on the level of the Issuer's total adjusted net product revenues for the fiscal year ended December 31, 2019 as set forth in the Issuer's audited financial statements.</footnote>
        <footnote id="F3">Although earned, the RSUs only vest according to the following schedule: 1/3 vests on each of March 15, 2020, 2021 and 2022, so long as the reporting person remains continuously employed with the Issuer through that date, subject to earlier vesting upon certain events.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Eric Fleekop, Attorney-in-Fact</signatureName>
        <signatureDate>2020-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
