<SUBMISSION>
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<TYPE>4
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<PERIOD>20061102
<FILING-DATE>20061103
<DATE-OF-FILING-DATE-CHANGE>20061103
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>PARAMETRIC TECHNOLOGY CORP
<CIK>0000857005
<ASSIGNED-SIC>7372
<IRS-NUMBER>042866152
<STATE-OF-INCORPORATION>MA
<FISCAL-YEAR-END>0930
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<CONFORMED-NAME>HARRISON C RICHARD
<CIK>0001186556
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<FILING-VALUES>
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<FILM-NUMBER>061185631
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<BUSINESS-ADDRESS>
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<CITY>NEEDHAM
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<DOCUMENT>
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<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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                <footnoteId id="F9"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-02-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>199999</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>199999</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>4.975</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-11-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F10"/>
            </exerciseDate>
            <expirationDate>
                <value>2013-02-13</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>319999</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>319999</value>
                    <footnoteId id="F5"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Employee stock option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.475</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2006-11-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>0</value>
                    <footnoteId id="F3"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F11"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-03-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>319999</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>319999</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 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="F2">Adjusted to reflect the 2 for 5 reverse stock split of the company's Common Stock effective February 28, 2006.</footnote>
        <footnote id="F3">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="F4">Employee stock option granted 9/10/1998, exercisable as to 100,001 shares on 9/10/1999, 100,000 shares on 9/10/2000, 99,999 shares on 9/10/2001, and 99,999 shares on 9/10/2002.</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 2,099,994 Options to purchase Common Stock of varying classes (i.e. varying exercise process and expiration dates).</footnote>
        <footnote id="F6">Employee stock option granted on 9/14/2000, exercisable as to 75,000 shares on 9/14/2001, 75,000 shares on 9/14/2002, 75,000 shares on 9/14/2003 and 74,999 shares on 9/14/2004.</footnote>
        <footnote id="F7">Employee stock option granted 9/20/2001, exercisable as to 80,001 shares on 9/20/2002, 80,000 shares on 9/20/2003, 79,999 shares on 9/20/2004 and 80,000 shares on 9/20/2005.</footnote>
        <footnote id="F8">Employee stock option granted 5/20/2002, exercisable as to 60,000 shares on 5/30/2003, 60,000 shares on 5/30/2004, 60,001 shares on 5/30/2005 and 59,998 shares on 5/30/2006.</footnote>
        <footnote id="F9">Employee stock option granted on 2/13/2003, exercisable as to 66,667 shares on 2/13/2004, 66,667 shares on 2/13/2005 and 66,665 shares on 2/13/2006.</footnote>
        <footnote id="F10">Employee stock option granted 2/13/2003, exercisable as to 80,000 shares on 2/13/2004, 80,000 shares on 2/13/2005, 80,000 shares on 2/13/2006 and 79,999 shares on 2/13/2007.</footnote>
        <footnote id="F11">Employee stock option granted 3/3/2004, exercisable as to 80,000 shares on 3/3/2005, 80,000 shares on 3/3/2006, 80,000 shares on 3/3/2007 and 79,999 shares on 3/3/2008.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ C. Richard Harrison</signatureName>
        <signatureDate>2006-11-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
