<SUBMISSION>
<ACCESSION-NUMBER>0000857005-06-000030
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20061102
<FILING-DATE>20061106
<DATE-OF-FILING-DATE-CHANGE>20061106
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>PARAMETRIC TECHNOLOGY CORP
<CIK>0000857005
<ASSIGNED-SIC>7372
<IRS-NUMBER>042866152
<STATE-OF-INCORPORATION>MA
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>140 KENDRICK STREET
<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
<PHONE>7813705000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
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<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
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</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>DIBONA ANTHONY
<CIK>0001227524
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<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>000-18059
<FILM-NUMBER>061191251
</FILING-VALUES>
<BUSINESS-ADDRESS>
<PHONE>7813705000
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>C/O PARAMETRIC TECHNOLOGY CORP
<STREET2>140 KENDRICK ST
<CITY>NEEDHAM
<STATE>MA
<ZIP>02494
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
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                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F17"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-03-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>69999</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>69999</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Shares sold pursuant to a pre-established Rule 10b5-1(c) trading plan.</footnote>
        <footnote id="F2">Shares sold pursuant to a pre-established Rule 10b5-1(c) trading plan that provided for the sale at market prices of a specified percentage of the Reporting Person's July 27, 2005 restricted stock award in order to satisfy current tax withholding obligations associated with the vesting of a portion of such restricted stock award.</footnote>
        <footnote id="F3">Adjusted to reflect the 2 for 5 reverse stock split of the company's Common Stock effective February 28, 2006.</footnote>
        <footnote id="F4">Employee stock option granted 5/30/2002, exercisable in four equal annual installments of 10,000 shares each beginning on 5/20/2003, the first anniversary of the date of grant.</footnote>
        <footnote id="F5">This amount represents the total number of Derivative Securities Beneficially Owned by the class shown (i.e. the same exercise price and expiration date).  The Reporting Person owns a total of 265,748 Options to purchase Common Stock of varying classes (i.e. varying exercise prices and expiration dates).</footnote>
        <footnote id="F6">Employee stock option granted 2/13/2003, exercisable as to 3,334 shares on 2/13/2005 and 6,666 shares on 2/13/2006.</footnote>
        <footnote id="F7">Employee stock option granted 5/20/2003, exercisable in four equal annual installments of 5,000 shares each beginning on 5/20/2004, the first anniversary of the date of grant.</footnote>
        <footnote id="F8">This option was previously reported and is now being reported (as currently outstanding) to reflect the 2 for 5 reverse stock split of the Company's Common Stock effective February 28, 2006.</footnote>
        <footnote id="F9">Employee stock option granted 7/20/1998, exercisable as to 6,250 shares on 7/20/1999, 12,500 shares 7/20/2000, 12,500 shares on 7/20/2001 and 12,500 shares on 7/20/2002.</footnote>
        <footnote id="F10">Employee stock option granted 9/10/1998, exercisable as to 2,000 shares on 9/10/1999, 4,000 shares on 9/10/2000, 4,000 shares on 9/10/2001 and 4,000 shares on 9/10/2002.</footnote>
        <footnote id="F11">Employee stock option granted 5/18/2000, exercisable as to 7,000 shares on 5/18/2001 and 7,000 shares on 5/18/2002.</footnote>
        <footnote id="F12">Employee stock option granted 9/14/2000, exercisable in four equal annual installments of 3,000 shares beginning 9/14/2001, the first anniversary of the date of grant.</footnote>
        <footnote id="F13">Employee stock option granted 10/16/2000, exercisable in four equal annual installments of 1,000 shares each beginning on 10/16/2001, the first anniversary of the date of grant.</footnote>
        <footnote id="F14">Employee stock option granted 11/17/2000, exercisable in four equal annual installments of 2,000 shares each beginning on 11/17/2001, the first anniversary of the date of grant.</footnote>
        <footnote id="F15">Employee stock option granted 9/20/2001, exercisable in four equal annual installments of 7,500 shares each beginning on 9/20/2002, the first anniversary of the date of grant.</footnote>
        <footnote id="F16">Employee stock option granted 9/16/2003, exercisable as to 7,501 shares on 9/16/2004, 7,500 shares on 9/16/2005, 7,499 shares on 9/16/2006 and 7,499 shares on 9/16/2007.</footnote>
        <footnote id="F17">Employee stock option granted 3/3/2004, exercisable as to 17,500 shares on 3/3/2005, 17,500 shares 3/3/2006, 17,500 shares on 3/3/2007 and 17,499 shares on 3/3/2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Christopher J. MacKrell pursuant to power of attorney filed July 6, 2005</signatureName>
        <signatureDate>2005-11-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
