FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN 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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1. Name and Address of Reporting Person * Tan Sheila K   2. Issuer Name and Ticker or Trading Symbol ALIGN TECHNOLOGY INC [ALGN] 5. 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 (Last) (First) (Middle) C/O ALIGN TECHNOLOGY INC., 881 MARTIN AVE 3. Date of Earliest Transaction (Month/Day/Year) 02/19/2010 (Street) SANTA CLARA, CA 95050 4. If Amendment, Date Original Filed(Month/Day/Year) 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 Acquired, Disposed of, or Beneficially Owned

1.Title of Security (Instr. 3) 2. Transaction Date (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 02/20/2010 02/20/2010 C   5,000 A $ 0 8,751 (1) D   Common Stock 02/20/2010 02/20/2010 F   1,834 D $ 17.94 6,817 D

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

1. Title of Derivative Security (Instr. 3)

2. Conversion or Exercise Price of Derivative Security

3. Transaction Date (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

4. Transaction Code (Instr. 8)

5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5)

6. Date Exercisable and Expiration Date (Month/Day/Year)

7. Title and Amount of Underlying Securities (Instr. 3 and 4)

8. Price of Derivative Security (Instr. 5)

9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)

10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4)

11. Nature of Indirect Beneficial Ownership (Instr. 4)

Code

V

(A)

(D)

Date Exercisable

Expiration Date

Title

Amount or Number of Shares

Right to Buy (Common Stock)

$ 17.94

02/19/2010

02/19/2010

A

33,000

02/19/2010(2)

02/19/2020

Common Stock

33,000

$ 0

33,000

D

Restricted Stock Unit

$ 0.0001 (3)

02/19/2010

02/19/2010

A

11,000

(4)

(4)

Common Stock

11,000

$ 0

11,000

D

Restricted Stock Unit

$ 0.0001 (3)

02/20/2010

02/20/2010

C

5,000

(5)

(5)

Common Stock

5,000

$ 0

10,000

D

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			VP,Mktg & Chief Mktg Officer

Signatures

Roger E. George, Atty-in-Fact for Sheila Tan		02/24/2010
**Signature of Reporting Person		Date

Explanation of Responses:

*	If the form is filed by more than one reporting person, see Instruction 4(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)	Includes 2,168 shares acquired under the ALGN ESPP on January 29, 2010.
(2)	1/4th of the shares subject to the option shall become vested and exercisable one year after the date of grant and 1/48th of the shares subject to the option shall vest each month thereafter.
(3)	Represents par value of ALGN common stock
(4)	1/14th of the restricted stock unit will vest one after the date of grant and 1/4th of the restricted stock unit will vest annually thereafter. Shares will be delivered to reporting person on each vest date.
(5)	1/4th of the restricted stock unit granted on February 20, 2009 became vested on February 20, 2010 and shares were delivered to reporting person on February 22, 2010. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.

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