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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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<SEC-DOCUMENT>0001260641-09-000018.txt : 20090824
<SEC-HEADER>0001260641-09-000018.hdr.sgml : 20090824
<ACCEPTANCE-DATETIME>20090824173722
ACCESSION NUMBER:		0001260641-09-000018
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20090821
FILED AS OF DATE:		20090824
DATE AS OF CHANGE:		20090824

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PRO PHARMACEUTICALS INC
		CENTRAL INDEX KEY:			0001133416
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				043562325
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		189 WELLS ST
		STREET 2:		STE 200
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02459
		BUSINESS PHONE:		6175590033

	MAIL ADDRESS:	
		STREET 1:		189 WELLS ST
		STREET 2:		STE 200
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02459

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			10X Fund, L.P.
		CENTRAL INDEX KEY:			0001453356
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31791
		FILM NUMBER:		091032292

	BUSINESS ADDRESS:	
		STREET 1:		1099 FOREST LAKE TERRACE
		CITY:			NICEVILLE
		STATE:			FL
		ZIP:			32578
		BUSINESS PHONE:		208-263-6695

	MAIL ADDRESS:	
		STREET 1:		1099 FOREST LAKE TERRACE
		CITY:			NICEVILLE
		STATE:			FL
		ZIP:			32578

	FORMER NAME:	
		FORMER CONFORMED NAME:	10X FUND LP
		DATE OF NAME CHANGE:	20090107

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			10X Capital Management, LLC
		CENTRAL INDEX KEY:			0001457247
		STATE OF INCORPORATION:			FL
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-31791
		FILM NUMBER:		091032291

	BUSINESS ADDRESS:	
		STREET 1:		1099 FOREST LAKE TERRACE
		CITY:			NICEVILLE
		STATE:			FL
		ZIP:			32578
		BUSINESS PHONE:		850-502-7659

	MAIL ADDRESS:	
		STREET 1:		1099 FOREST LAKE TERRACE
		CITY:			NICEVILLE
		STATE:			FL
		ZIP:			32578
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2009-08-21</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001133416</issuerCik>
        <issuerName>PRO PHARMACEUTICALS INC</issuerName>
        <issuerTradingSymbol>PRWP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001453356</rptOwnerCik>
            <rptOwnerName>10X Fund, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1099 FOREST LAKE TERRACE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NICEVILLE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32578</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001457247</rptOwnerCik>
            <rptOwnerName>10X Capital Management, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1099 FOREST LAKE TERRACE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>NICEVILLE</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>32578</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2009-08-21</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>207668</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.5</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>207668</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By 10X Fund, LP</value>
                    <footnoteId id="F2"/>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On August 21, 2009, 10X Fund, L.P. received 207,668 shares of Common Stock of the Issuer in satisfaction of dividends on shares of Series B-1 and B-2 Convertible Preferred Stock owned by 10X Fund, L.P.   Dividends on the Preferred Stock are payable in shares of the Issuer's Common Stock valued at $0.50 per share, with regard to the actual market price of the Common Stock at the time of issuance.  The market value of the Common Stock at the time of its issuance was less than $0.50 per share.</footnote>
        <footnote id="F2">10X Fund, L.P. has direct beneficial ownership of all the securities owned by 10X Fund, L.P.  10X Capital Management, LLC, a Florida limited liability company, is the general partner of 10X Fund, L.P., a Delaware limited partnership, and may be deemed to have indirect beneficial ownership of all or a portion of the securities owned directly by 10X Fund, L.P., such portion being equal to 10X Capital Management, LLC's (a) 20% interest in the profits of 10X Fund, L.P., (b) interest in any securities which are used to pay a 2% annual management fee to 10X Capital Management, LLC, and (c) interest in one-half of the Class B Warrants acquired by 10X Fund, L.P. in all closings other than the initial closing held on February 12, 2009, less one Class B Warrant which 10X Capital Management, LLC has committed to reallocate to investors in all prior closings until each such investor has one (1) additional Class B Warrant for each dollar invested.</footnote>
        <footnote id="F3">10X Capital Management, LLC disclaims beneficial ownership of the reported securities except to the extent of its pecuniary interest therein.</footnote>
    </footnotes>

    <remarks>This statement is a joint filing by 10X Fund, L.P. and 10X Capital Management, LLC, a Florida limited liability company and the general partner of 10X Fund, L.P.</remarks>

    <ownerSignature>
        <signatureName>/s/ Robert J. Mottern, as attorney in fact for 10X Fund, LP</signatureName>
        <signatureDate>2009-08-24</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Robert J. Mottern, as attorney in fact for 10X Capital Management, LLC</signatureName>
        <signatureDate>2009-08-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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