<SEC-DOCUMENT>0001209191-17-041618.txt : 20170623
<SEC-HEADER>0001209191-17-041618.hdr.sgml : 20170623
<ACCEPTANCE-DATETIME>20170623145421
ACCESSION NUMBER:		0001209191-17-041618
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20170619
FILED AS OF DATE:		20170623
DATE AS OF CHANGE:		20170623

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:			SIMARD JOHN
		CENTRAL INDEX KEY:			0001639078

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37347
		FILM NUMBER:		17927315

	MAIL ADDRESS:	
		STREET 1:		8201 E RIVERSIDE DRIVE
		STREET 2:		BLDG 4, STE 100
		CITY:			AUSTIN
		STATE:			TX
		ZIP:			78744
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc4a.xml
<DESCRIPTION>FORM 4/A SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2017-06-19</periodOfReport>

    <dateOfOriginalSubmission>2017-06-23</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001639078</rptOwnerCik>
            <rptOwnerName>SIMARD JOHN</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>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </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>75000</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>75000</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 three equal annual installments commencing as of the first anniversary of the Grant Date with an expiry of ten years from the Grant Date.</remarks>

    <ownerSignature>
        <signatureName>/s/ Ashley Otero under Power of Attorney for John Simard</signatureName>
        <signatureDate>2017-06-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
