<SEC-DOCUMENT>0001209191-17-041820.txt : 20170626
<SEC-HEADER>0001209191-17-041820.hdr.sgml : 20170626
<ACCEPTANCE-DATETIME>20170626154720
ACCESSION NUMBER:		0001209191-17-041820
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170619
FILED AS OF DATE:		20170626
DATE AS OF CHANGE:		20170626

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			XBiotech Inc.
		CENTRAL INDEX KEY:			0001626878
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8201 E. RIVERSIDE DRIVE
		STREET 2:		BUILDING 4, SUITE 100
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78744
		BUSINESS PHONE:		512-386-2930

	MAIL ADDRESS:	
		STREET 1:		8201 E. RIVERSIDE DRIVE
		STREET 2:		BUILDING 4, SUITE 100
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78744

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			VASELLA DANIEL
		CENTRAL INDEX KEY:			0001189152

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37347
		FILM NUMBER:		17929859

	MAIL ADDRESS:	
		STREET 1:		LICHISTRASSE 35 WSJ-200.108
		STREET 2:		CH 4002 POSTFACH
		CITY:			BASEL
		STATE:			V8
		ZIP:			00000
</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>2017-06-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001626878</issuerCik>
        <issuerName>XBiotech Inc.</issuerName>
        <issuerTradingSymbol>XBIT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001189152</rptOwnerCik>
            <rptOwnerName>VASELLA DANIEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8201 EAST RIVERSIDE DRIVE</rptOwnerStreet1>
            <rptOwnerStreet2>BUILDING 4, SUITE 100</rptOwnerStreet2>
            <rptOwnerCity>AUSTIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78744</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.24</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2017-06-19</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>50000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>4.24</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2018-06-19</value>
            </exerciseDate>
            <expirationDate>
                <value>2027-06-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>50000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>50000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes></footnotes>

    <remarks>On June 19, 2017 (the Grant Date) the reporting person was granted nonstatutory stock options (the Options) under the Company's 2015 Equity Incentive Plan to purchase shares of the Company's Common Stock (the Shares) at an exercise price equal to the closing sales price of the Shares on the Grant Date as quoted by the Nasdaq Stock Market. The Options vest in two equal portions at six months and one year from the Grant Date with an expiry of ten years from the Grant Date.</remarks>

    <ownerSignature>
        <signatureName>/s/ Daniel Vasella</signatureName>
        <signatureDate>2017-06-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
