<SEC-DOCUMENT>0001102624-14-001897.txt : 20141113
<SEC-HEADER>0001102624-14-001897.hdr.sgml : 20141113
<ACCEPTANCE-DATETIME>20141113195816
ACCESSION NUMBER:		0001102624-14-001897
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20141112
FILED AS OF DATE:		20141113
DATE AS OF CHANGE:		20141113

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Stellar Biotechnologies, Inc.
		CENTRAL INDEX KEY:			0001540159
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			A1
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		332 EAST SCOTT STREET
		CITY:			PORT HUENEME
		STATE:			CA
		ZIP:			93041
		BUSINESS PHONE:		(805) 488-2800

	MAIL ADDRESS:	
		STREET 1:		332 EAST SCOTT STREET
		CITY:			PORT HUENEME
		STATE:			CA
		ZIP:			93041

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			NIFFENEGGER KATHI
		CENTRAL INDEX KEY:			0001620146

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-54598
		FILM NUMBER:		141220024

	MAIL ADDRESS:	
		STREET 1:		C/O STELLAR BIOTECHNOLOGIES, INC.
		STREET 2:		332 EAST SCOTT STREET
		CITY:			PORT HUENEME
		STATE:			CA
		ZIP:			93041
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2014-11-12</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001540159</issuerCik>
        <issuerName>Stellar Biotechnologies, Inc.</issuerName>
        <issuerTradingSymbol>SBOTF</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001620146</rptOwnerCik>
            <rptOwnerName>NIFFENEGGER KATHI</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O STELLAR BIOTECHNOLOGIES, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>332 EAST SCOTT STREET</rptOwnerStreet2>
            <rptOwnerCity>PORT HUENEME</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>93041</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right To Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.3439</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2014-11-12</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>90000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2021-11-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Shares</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>90000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>90000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options are exercisable at a price of C$1.52. The U.S. dollar price reported on this Form 4 in column 2 reflects the U.S. dollar equivalent exercise price on the date of grant, calculated at the closing price for cable transfers in Canadian dollars as reported by Bloomberg on such date of U.S.$1.00 = CDN$1.1311.</footnote>
        <footnote id="F2">One-third of the option vested immediately, one-third of the option vests on the first anniversary of November 12, 2014, and one-third of the option vests 18 months after November 12, 2014.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Kathi Niffenegger</signatureName>
        <signatureDate>2014-11-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
