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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 O1Czrz+JRHmyerdmdMm1QoJ5A6MgzfG2Gd43R54j9mibpNwzLqZMZ7dUlgYsa1sI
 wl2qWrSUQbFfsJ5DtZIUvw==

<SEC-DOCUMENT>0001209191-03-017866.txt : 20030819
<SEC-HEADER>0001209191-03-017866.hdr.sgml : 20030819
<ACCEPTANCE-DATETIME>20030819162504
ACCESSION NUMBER:		0001209191-03-017866
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030818
FILED AS OF DATE:		20030819

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KALISHMAN THOMAS N
		CENTRAL INDEX KEY:			0001199980

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10786
		FILM NUMBER:		03856005

	MAIL ADDRESS:	
		STREET 1:		702 SPIRIT 40 PARK DR
		CITY:			CHESTERFILD
		STATE:			MI
		ZIP:			63005

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			INSITUFORM TECHNOLOGIES INC
		CENTRAL INDEX KEY:			0000353020
		STANDARD INDUSTRIAL CLASSIFICATION:	WATER, SEWER, PIPELINE, COMM AND POWER LINE CONSTRUCTION [1623]
		IRS NUMBER:				133032158
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		702 SPIRIT 40 PARK DRIVE
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005
		BUSINESS PHONE:		6365308000

	MAIL ADDRESS:	
		STREET 1:		702 SPIRIT 40 PARK DRIVE
		CITY:			CHESTERFIELD
		STATE:			MO
		ZIP:			63005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSITUFORM OF NORTH AMERICA INC/TN/
		DATE OF NAME CHANGE:	19930617

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	INSITUFORM OF NORTH AMERICA INC
		DATE OF NAME CHANGE:	19921217
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bsl79212_boc2tnk.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument><schemaVersion>X0201</schemaVersion>    <documentType>4</documentType><periodOfReport>2003-08-18</periodOfReport><notSubjectToSection16>0</notSubjectToSection16><issuer><issuerCik>0000353020</issuerCik><issuerName>INSITUFORM TECHNOLOGIES INC</issuerName>        <issuerTradingSymbol>INSU</issuerTradingSymbol></issuer><reportingOwner><reportingOwnerId><rptOwnerCik>0001199980</rptOwnerCik><rptOwnerName>KALISHMAN THOMAS N</rptOwnerName></reportingOwnerId><reportingOwnerAddress><rptOwnerStreet1></rptOwnerStreet1><rptOwnerStreet2>702 SPIRIT 40 PARK DRIVE</rptOwnerStreet2><rptOwnerCity>CHESTERFIELD</rptOwnerCity><rptOwnerState>MO</rptOwnerState><rptOwnerZipCode>63005</rptOwnerZipCode><rptOwnerStateDescription></rptOwnerStateDescription></reportingOwnerAddress><reportingOwnerRelationship><isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTr
ansaction><securityTitle><value>Class A common shares, $.01 par value</value></securityTitle><transactionDate><value>2003-08-18</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1" /></transactionCoding><transactionAmounts><transactionShares><value>3000</value></transactionShares><transactionPricePerShare><value>8.75</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3000</value><footnoteId id="F2" /></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option (right to buy)</value></securityTitle><conversi
onOrExercisePrice><value>8.75</value></conversionOrExercisePrice><transactionDate><value>2003-08-18</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>M</transactionCode><equitySwapInvolved>0</equitySwapInvolved><footnoteId id="F1" /></transactionCoding><transactionAmounts><transactionShares><value>3000</value></transactionShares><transactionPricePerShare><value>8.75</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>D</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1997-11-14</value><footnoteId id="F1" /></exerciseDate><expirationDate><value>2007-11-14</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Class A common shares</value></underlyingSecurityTitle><underlyingSecurityShares><value>3000</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>37500</value></sharesOwnedFollowingTransaction></postTransactio
nAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">Exercise under the issuer's 1992 Employee Stock Option Plan of options to buy Class A common shares, $.01 par value.  Such options were granted on November 14, 1997 with regard to 15,000 Class A common shares that became exercisable in annual increments of 3,000 shares each on November 14, 1997 (date of grant), and November 14, 1998, 1999, 2000 and 2001, respectively.</footnote><footnote id="F2">This report does not restate information with respect to non-derivative securities owned indirectly as of the date of this report and previously reported by the undersigned.</footnote></footnotes><ownerSignature><signatureName> /s/ Thomas N. Kalishman</signatureName><signatureDate>2003-08-19</signatureDate></ownerSignature></ownershipDocument>

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