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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001052775-06-000002.txt : 20060608
<SEC-HEADER>0001052775-06-000002.hdr.sgml : 20060608
<ACCEPTANCE-DATETIME>20060608142017
ACCESSION NUMBER:		0001052775-06-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20060606
FILED AS OF DATE:		20060608
DATE AS OF CHANGE:		20060608

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AASTROM BIOSCIENCES INC
		CENTRAL INDEX KEY:			0000887359
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-COMMERCIAL PHYSICAL & BIOLOGICAL RESEARCH [8731]
		IRS NUMBER:				943096597
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		24 FRANKL LLOYD WRIGHT DR
		STREET 2:		PO BOX 376
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48106
		BUSINESS PHONE:		7349305555

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ARMSTRONG R DOUGLAS PHD
		CENTRAL INDEX KEY:			0001052775

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-22025
		FILM NUMBER:		06893700

	BUSINESS ADDRESS:	
		STREET 1:		24 FRANK LLOYD WRIGHT DR LOBBY L
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48106
		BUSINESS PHONE:		3139305555

	MAIL ADDRESS:	
		STREET 1:		R DOUGLAS ARMSTRONG PHD
		STREET 2:		P O BOX 376
		CITY:			ANN ARBOR
		STATE:			MI
		ZIP:			48106
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2006-06-06</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000887359</issuerCik>
        <issuerName>AASTROM BIOSCIENCES INC</issuerName>
        <issuerTradingSymbol>astm</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001052775</rptOwnerCik>
            <rptOwnerName>ARMSTRONG R DOUGLAS PHD</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>R DOUGLAS ARMSTRONG PHD</rptOwnerStreet1>
            <rptOwnerStreet2>P O BOX 376</rptOwnerStreet2>
            <rptOwnerCity>ANN ARBOR</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48106</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2006-06-06</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>1.26</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>573763</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">The Securities Beneficially owned does not include shares held in children's trust.  The total shares held in trust is 68,000.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ R. Douglas Armstrong, Ph.D.</signatureName>
        <signatureDate>2006-06-08</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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