<SEC-DOCUMENT>0001097149-19-000012-index.html : 20190404
<SEC-HEADER>0001097149-19-000012.hdr.sgml : 20190404
<ACCEPTANCE-DATETIME>20190404161917
ACCESSION NUMBER:		0001097149-19-000012
CONFORMED SUBMISSION TYPE:	DEF 14A
PUBLIC DOCUMENT COUNT:		15
CONFORMED PERIOD OF REPORT:	20181231
FILED AS OF DATE:		20190404
DATE AS OF CHANGE:		20190404
EFFECTIVENESS DATE:		20190404

FILER:

	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

	FILING VALUES:
		FORM TYPE:		DEF 14A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-32259
		FILM NUMBER:		19732480

	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>DEF 14A
<SEQUENCE>1
<FILENAME>algn-20181231xdef.htm
<DESCRIPTION>DEF 14A
<TEXT>
Document 1 - file: algn-20181231xdef.htm

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>2
<FILENAME>aligntechnologyproxycard001.jpg
<TEXT>
Document 2 - file: aligntechnologyproxycard001.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>3
<FILENAME>aligntechnologyproxycard003.jpg
<TEXT>
Document 3 - file: aligntechnologyproxycard003.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>4
<FILENAME>ceoandneototalcompcharta01.jpg
<TEXT>
Document 4 - file: ceoandneototalcompcharta01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>5
<FILENAME>ceoawardpayout.jpg
<TEXT>
Document 5 - file: ceoawardpayout.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>6
<FILENAME>ceocirclecharta07.jpg
<TEXT>
Document 6 - file: ceocirclecharta07.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>7
<FILENAME>chart3a03.jpg
<TEXT>
Document 7 - file: chart3a03.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>8
<FILENAME>growtharrowsa10.jpg
<TEXT>
Document 8 - file: growtharrowsa10.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>9
<FILENAME>logoa04.jpg
<TEXT>
Document 9 - file: logoa04.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>10
<FILENAME>payelementsinsummarya09.jpg
<TEXT>
Document 10 - file: payelementsinsummarya09.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>11
<FILENAME>rogerselectronicsignaturea02.jpg
<TEXT>
Document 11 - file: rogerselectronicsignaturea02.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>12
<FILENAME>sayonpaysummarya07.jpg
<TEXT>
Document 12 - file: sayonpaysummarya07.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>13
<FILENAME>suminvisalignshipmenta01.jpg
<TEXT>
Document 13 - file: suminvisalignshipmenta01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>14
<FILENAME>summarytotalrevenuea01.jpg
<TEXT>
Document 14 - file: summarytotalrevenuea01.jpg

</DOCUMENT>
<DOCUMENT>
<TYPE>GRAPHIC
<SEQUENCE>15
<FILENAME>tsrforjoespecialgranta02.jpg
<TEXT>
Document 15 - file: tsrforjoespecialgranta02.jpg

</DOCUMENT>
</SEC-DOCUMENT>