FORM 3

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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(Print or Type Responses)

1. Name and Address of Reporting Person *   Tan Sheila K 2. Date of Event Requiring Statement (Month/Day/Year) 03/03/2009 3. Issuer Name and Ticker or Trading Symbol ALIGN TECHNOLOGY INC [ALGN] (Last) (First) (Middle) C/O ALIGN TECHNOLOGY INC., 881 MARTIN AVE 4. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner __X__ Officer (give title below) _____ Other (specify below) VP, Mktg & Chief Mktg Officer 5. If Amendment, Date Original Filed(Month/Day/Year) (Street) SANTA CLARA, CA 95050 6. Individual or Joint/Group Filing(Check Applicable Line) _X_ Form filed by One Reporting Person ___ Form filed by More than One Reporting Person (City) (State) (Zip) Table I - Non-Derivative Securities Beneficially Owned

1.Title of Security (Instr. 4) 2. Amount of Securities Beneficially Owned (Instr. 4) 3. Ownership Form: Direct (D) or Indirect (I) (Instr. 5) 4. Nature of Indirect Beneficial Ownership (Instr. 5)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.			SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)

1. Title of Derivative Security (Instr. 4)	2. Date Exercisable and Expiration Date (Month/Day/Year)		3. Title and Amount of Securities Underlying Derivative Security (Instr. 4)		4. Conversion or Exercise Price of Derivative Security	5. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 5)	6. Nature of Indirect Beneficial Ownership (Instr. 5)
	Date Exercisable	Expiration Date	Title	Amount or Number of Shares
Right to buy (Common Stock	10/01/2009(1)	10/01/2018	Common Stock	32,000	$ 10.48	D	Â
Right to Buy (Common Stock)	02/20/2010(1)	02/20/2019	Common Stock	60,000	$ 7.81	D	Â
Restricted Stock Unit	  (2)	  (2)	Common Stock	10,000	$ 0.0001 (3)	D	Â
Restricted Stock Unit	  (4)	  (4)	Common Stock	20,000	$ 0.0001 (3)	D	Â

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Tan Sheila K C/O ALIGN TECHNOLOGY INC. 881 MARTIN AVE SANTA CLARA, CA 95050	Â	Â	  VP, Mktg & Chief Mktg Officer	Â

Signatures

Roger E. George, Atty-in-Fact for Sheila K. Tan		03/12/2009
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 5(b)(v).
**	Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1)	Represents an option in which 25% of the shares subject to the option vest one year after the date of grant, and 1/48th of the shares subject to the option vest each month thereafter.
(2)	1/4 of the restricted stock unit granted on October 1, 2008 will become vested on October 1, 2009 and shares will be delivered to the reporting person on that date. The restricted stock unit will continue to vest annually and vested shares will be delivered to the reporting person on each vest date.
(3)	Represents par value of AlGN common stock
(4)	1/4 of the restricted stock unit granted on February 20, 2009 will become vested and exercisable on February 20, 2010 and shares will be delivered to the reporting person on that date. The restricted stock unit will continue to vest annually and vested shares will be delivered to the reporting person on each vest date.

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, See Instruction 6 for procedure.

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