<SEC-DOCUMENT>0001777603-19-000004.txt : 20190724
<SEC-HEADER>0001777603-19-000004.hdr.sgml : 20190724
<ACCEPTANCE-DATETIME>20190724171741
ACCESSION NUMBER:		0001777603-19-000004
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20190722
FILED AS OF DATE:		20190724
DATE AS OF CHANGE:		20190724

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Shaked Yuval
		CENTRAL INDEX KEY:			0001749094

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32259
		FILM NUMBER:		19971752

	MAIL ADDRESS:	
		STREET 1:		C/O ALIGN TECHNOLOGY INC.
		STREET 2:		2820 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALIGN TECHNOLOGY INC
		CENTRAL INDEX KEY:			0001097149
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		IRS NUMBER:				943267295
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2820 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
		BUSINESS PHONE:		408-470-1000

	MAIL ADDRESS:	
		STREET 1:		2820 ORCHARD PARKWAY
		CITY:			SAN JOSE
		STATE:			CA
		ZIP:			95134
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2019-07-22</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001097149</issuerCik>
        <issuerName>ALIGN TECHNOLOGY INC</issuerName>
        <issuerTradingSymbol>ALGN</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001749094</rptOwnerCik>
            <rptOwnerName>Shaked Yuval</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ALIGN TECHNOLOGY INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2820 ORCHARD PARKWAY</rptOwnerStreet2>
            <rptOwnerCity>SAN JOSE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>95134</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>SVP and Mgng Director, Itero</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2019-07-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2217</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2241</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Restricted Stock Unit</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>0.0001</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2019-07-22</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>2217</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F2"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2217</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4432</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Represents par value of ALGN common stock.</footnote>
        <footnote id="F2">1/4th of the restricted stock unit granted on July 3, 2017 became vested on July 20, 2019 and shares were delivered to reporting person on July 22, 2019.  1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Julie Ann Coletti Atty-in-Fact for Yuval Shaked</signatureName>
        <signatureDate>2019-07-24</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>2
<FILENAME>shakedpoa2019.txt
<DESCRIPTION>LIMITED POWER OF ATTORNEY
<TEXT>
LIMITED POWER OF ATTORNEY - SECURITIES LAW COMPLIANCE
      The undersigned, as an officer or director of
Align Technology, Inc. (the "Company"), hereby constitutes
and appoints John Morici and Julie Ann Coletti and each of them,
the undersigned's true and lawful
attorney-in-fact and agent to complete and execute such
Forms 144, Forms 3, 4 and 5 and other forms as such attorney
shall in his discretion determine to be required or advisable
pursuant to Rule 144 promulgated under the Securities Act of
1933, as amended, Section 16 of the Securities Exchange
Act of 1934,as amended, and the rules and regulations
promulgated thereunder, or any successor laws and
regulations, as a consequence of the undersigned's
ownership, acquisition or disposition of securities of
the Company, and to do all acts necessary in order to
file such forms with the Securities and Exchange
Commission, any securities exchange or national
association, the Company and such other person or
agency as the attorney shall deem appropriate.  The
undersigned hereby ratifies and confirms all that
said attorneys-in-fact and agents shall do or cause
to be done by virtue hereof.
      This Limited Power of Attorney shall remain in full
force and effect until the undersigned is no longer required
to file Forms 3, 4 and 5 with respect to the undersigned's
holdings of and transactions in securities issued by
the Company unless earlier revoked by the undersigned
in a writing delivered to the foregoing attorneys-in-fact.
      This Limited Power of Attorney is executed at
San Jose, California, as of the date set forth below.


					/s/Yuval Shaked
					Yuval Shaked
					Dated:  07/17/19
Witness:

/s/ Julie Tay
Julie Tay
Dated: 07/17/2019














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