<SEC-DOCUMENT>0001209191-21-052965.txt : 20210823
<SEC-HEADER>0001209191-21-052965.hdr.sgml : 20210823
<ACCEPTANCE-DATETIME>20210823163619
ACCESSION NUMBER:		0001209191-21-052965
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210820
FILED AS OF DATE:		20210823
DATE AS OF CHANGE:		20210823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Wijkstrom Joakim
		CENTRAL INDEX KEY:			0001785888

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-34186
		FILM NUMBER:		211197417

	MAIL ADDRESS:	
		STREET 1:		2200 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 300E
		CITY:			WASHINGTON, DC
		STATE:			DC
		ZIP:			20037

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Vanda Pharmaceuticals Inc.
		CENTRAL INDEX KEY:			0001347178
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				030491827
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2200 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 300E
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
		BUSINESS PHONE:		202-734-3400

	MAIL ADDRESS:	
		STREET 1:		2200 PENNSYLVANIA AVE NW
		STREET 2:		SUITE 300E
		CITY:			WASHINGTON
		STATE:			DC
		ZIP:			20037
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-08-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001347178</issuerCik>
        <issuerName>Vanda Pharmaceuticals Inc.</issuerName>
        <issuerTradingSymbol>VNDA</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001785888</rptOwnerCik>
            <rptOwnerName>Wijkstrom Joakim</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O VANDA PHARMACEUTICALS INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2200 PENNSYLVANIA AVENUE, SUITE 300E</rptOwnerStreet2>
            <rptOwnerCity>WASHINGTON</rptOwnerCity>
            <rptOwnerState>DC</rptOwnerState>
            <rptOwnerZipCode>20037</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP, Chief Marketing Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-08-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>3650</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>15.3944</value>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>74552</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents shares of the Issuer's common stock sold to satisfy tax obligations relating to the acquisition of shares of the Issuer's common stock in connection with the settlement of the vested portion of RSUs. Such sale was executed pursuant to an irrevocable election made by the Reporting Person during an open trading window under a program approved by the Compensation Committee of the Issuer's Board of Directors.</footnote>
        <footnote id="F2">The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $15.30 to $15.49, inclusive. The Reporting Person undertakes to provide to the Issuer, any security holder of the Issuer or the staff of the Securities Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote (2) to this Form 4.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Joakim Wijkstrom</signatureName>
        <signatureDate>2021-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
