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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 Fz7gDJCKpIe7PlCyTw1hNSn0fARVfagaomR/IAK2FmbY6njlr/YMBgyP4+NtyLvL
 KR/g/lL7J2VAzVILz84xtw==

<SEC-DOCUMENT>0001181431-03-016091.txt : 20030730
<SEC-HEADER>0001181431-03-016091.hdr.sgml : 20030730
<ACCEPTANCE-DATETIME>20030730125346
ACCESSION NUMBER:		0001181431-03-016091
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030723
FILED AS OF DATE:		20030730

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GLYCOGENESYS  INC
		CENTRAL INDEX KEY:			0000946661
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		IRS NUMBER:				330231238
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		31 ST. JAMES AVENUE
		STREET 2:		8TH FLOOR
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116
		BUSINESS PHONE:		6174220674

	MAIL ADDRESS:	
		STREET 1:		31 ST JAMES AVE
		STREET 2:		8TH FL
		CITY:			BOSTON
		STATE:			MA
		ZIP:			02116

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GLYCOGENESY  INC
		DATE OF NAME CHANGE:	20011107

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	SAFESCIENCE INC
		DATE OF NAME CHANGE:	19980401

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	IGG INTERNATIONAL INC
		DATE OF NAME CHANGE:	19950721

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			PLATT DAVID
		CENTRAL INDEX KEY:			0001166440

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-26476
		FILM NUMBER:		03810774

	BUSINESS ADDRESS:	
		STREET 1:		12 APPLETON CIRCLE
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02459

	MAIL ADDRESS:	
		STREET 1:		12 APPLETON CIRCLE
		CITY:			NEWTON
		STATE:			MA
		ZIP:			02459
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>rrd14402.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-07-23</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000946661</issuerCik>
        <issuerName>GLYCOGENESYS  INC</issuerName>
        <issuerTradingSymbol>GLGS</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001166440</rptOwnerCik>
            <rptOwnerName>PLATT DAVID</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>189 WELLS STREET</rptOwnerStreet1>
            <rptOwnerStreet2>C/O PRO-PHARMACEUTICALS, INC.</rptOwnerStreet2>
            <rptOwnerCity>NEWTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02459</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>1</isOther><otherText>Affiliate</otherText></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Glycogenesys (GLGS)</value></securityTitle><transactionDate><value>2003-07-23</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>S</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>30000</value></transactionShares><transactionPricePerShare><value>0.67</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>1867434</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></no
nDerivativeTransaction></nonDerivativeTable><ownerSignature><signatureName>David Platt</signatureName><signatureDate>2003-07-23</signatureDate></ownerSignature></ownershipDocument>



</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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