-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 Yw7N2xKp30b6aegRezf8kg==

<SEC-DOCUMENT>0001363399-07-000022.txt : 20070719
<SEC-HEADER>0001363399-07-000022.hdr.sgml : 20070719
<ACCEPTANCE-DATETIME>20070719103736
ACCESSION NUMBER:		0001363399-07-000022
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070718
FILED AS OF DATE:		20070719
DATE AS OF CHANGE:		20070719

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AspenBio Pharma, Inc.
		CENTRAL INDEX KEY:			0001167419
		STANDARD INDUSTRIAL CLASSIFICATION:	IN VITRO & IN VIVO DIAGNOSTIC SUBSTANCES [2835]
		IRS NUMBER:				841553387
		STATE OF INCORPORATION:			CO
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1585 S. PERRY STREET
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80104
		BUSINESS PHONE:		(303) 794-2000

	MAIL ADDRESS:	
		STREET 1:		1585 S. PERRY STREET
		CITY:			CASTLE ROCK
		STATE:			CO
		ZIP:			80104

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ASPENBIO INC
		DATE OF NAME CHANGE:	20020213

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			1837 Partners Ltd.
		CENTRAL INDEX KEY:			0001396487
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50019
		FILM NUMBER:		07988191

	BUSINESS ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DRIVE, STE. 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		(312) 993-5800

	MAIL ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DRIVE, STE. 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			1837 Partners QP L.P.
		CENTRAL INDEX KEY:			0001376884
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50019
		FILM NUMBER:		07988192

	BUSINESS ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE. 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-993-5800

	MAIL ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE. 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			1837 Partners L.P.
		CENTRAL INDEX KEY:			0001363397
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50019
		FILM NUMBER:		07988193

	BUSINESS ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-993-5800

	MAIL ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			1837 RMB Managers L.L.C.
		CENTRAL INDEX KEY:			0001363399
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-50019
		FILM NUMBER:		07988194

	BUSINESS ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
		BUSINESS PHONE:		312-993-5800

	MAIL ADDRESS:	
		STREET 1:		C/O RMB CAPITAL MANAGEMENT, LLC
		STREET 2:		10 S. WACKER DR. STE 3210
		CITY:			CHICAGO
		STATE:			IL
		ZIP:			60606
</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>2007-07-18</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001167419</issuerCik>
        <issuerName>AspenBio Pharma, Inc.</issuerName>
        <issuerTradingSymbol>apnb</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001363399</rptOwnerCik>
            <rptOwnerName>1837 RMB Managers L.L.C.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RMB CAPITAL MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>10 S. WACKER DR. STE 3210</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001363397</rptOwnerCik>
            <rptOwnerName>1837 Partners L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RMB CAPITAL MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>10 S. WACKER DR. STE 3210</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001376884</rptOwnerCik>
            <rptOwnerName>1837 Partners QP L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RMB CAPITAL MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>10 S. WACKER DR. STE. 3210</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396487</rptOwnerCik>
            <rptOwnerName>1837 Partners Ltd.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O RMB CAPITAL MANAGEMENT, LLC</rptOwnerStreet1>
            <rptOwnerStreet2>10 S. WACKER DRIVE, STE. 3210</rptOwnerStreet2>
            <rptOwnerCity>CHICAGO</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>AspenBio Pharma, Inc.</value>
            </securityTitle>
            <transactionDate>
                <value>2007-07-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>25140</value>
                    <footnoteId id="F2"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2775271</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>AspenBio Pharma, Inc.</value>
            </securityTitle>
            <transactionDate>
                <value>2007-07-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6030</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2769241</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>AspenBio Pharma, Inc.</value>
            </securityTitle>
            <transactionDate>
                <value>2007-07-18</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>6330</value>
                    <footnoteId id="F4"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>5.43</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2762911</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These securities are directly owned by 1837 Partners L.P., 1837 Partners QP L.P., 1837 Partners Ltd. (&quot;Partnerships&quot;).  As the General Partner to the Partnerships, 1837 RMB Managers LLC, may be deemed as the beneficial owner of the Issuer's securities held by the Partnerships.  1837 RMB Managers LLC, disclaims any beneficial ownership of any of the Issuer's securities reported herein for the purposes of Rule 16a-1 under the Securities Exchange Act of 1934, as amended, or otherwise, except as to the securities representing 1837 RMB Managers LLC's pro rata interest in the profits of the Partnerships.</footnote>
        <footnote id="F2">These shares were sold by 1837 Partners L.P.</footnote>
        <footnote id="F3">These shares were sold from 1837 Partners QP L.P.</footnote>
        <footnote id="F4">These shares were sold from 1837 Partners Ltd.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Richard M. Burridge, Jr.</signatureName>
        <signatureDate>2007-07-18</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----