<SEC-DOCUMENT>0000914475-25-000128.txt : 20250522
<SEC-HEADER>0000914475-25-000128.hdr.sgml : 20250522
<ACCEPTANCE-DATETIME>20250522172008
ACCESSION NUMBER:		0000914475-25-000128
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250521
FILED AS OF DATE:		20250522
DATE AS OF CHANGE:		20250522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MORROW GEORGE J
		CENTRAL INDEX KEY:			0001068754
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		STATE OF INCORPORATION:			NC
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22705
		FILM NUMBER:		25978287

	MAIL ADDRESS:	
		STREET 1:		ALIGN TECHNOLOGY INC
		STREET 2:		410 N. SCOTTSDALE RD., SUITE 1300
		CITY:			TEMPE
		STATE:			AZ
		ZIP:			85288

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEUROCRINE BIOSCIENCES INC
		CENTRAL INDEX KEY:			0000914475
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				330525145
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		6027 EDGEWOOD BEND COURT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
		BUSINESS PHONE:		(858) 617-7600

	MAIL ADDRESS:	
		STREET 1:		6027 EDGEWOOD BEND COURT
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92130
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>FORM 4
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    <periodOfReport>2025-05-21</periodOfReport>

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    <issuer>
        <issuerCik>0000914475</issuerCik>
        <issuerName>NEUROCRINE BIOSCIENCES INC</issuerName>
        <issuerTradingSymbol>NBIX</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001068754</rptOwnerCik>
            <rptOwnerName>MORROW GEORGE J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>6027 EDGEWOOD BEND COURT</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92130</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
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    </reportingOwner>

    <aff10b5One>0</aff10b5One>

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        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2025-05-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <transactionShares>
                    <value>2869</value>
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                <transactionPricePerShare>
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    <footnotes>
        <footnote id="F1">Each Restricted Stock Unit (&quot;RSU&quot;) represents the right to receive one share of the Issuer's common stock upon vesting.</footnote>
        <footnote id="F2">The RSUs will vest in full on May 21, 2026.</footnote>
        <footnote id="F3">This RSU award was granted to the Reporting Person on May 22, 2024 and is fully vested.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Darin Lippoldt, Attorney-in-Fact</signatureName>
        <signatureDate>2025-05-22</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
