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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(Print or Type Responses)

1. Name and Address of Reporting Person * Puco Christopher C.   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, No. American Sales (Last) (First) (Middle) C/O ALIGN TECHNOLOGY INC., 2560 ORCHARD PARKWAY 3. Date of Earliest Transaction (Month/Day/Year) 02/20/2013 (Street) SAN JOSE, CA 95131 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 02/20/2013 02/20/2013 C   2,975 A $ 0 5,406 D   Common Stock 02/20/2013 02/20/2013 F   1,119 D $ 31.73 4,287 D

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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

Restricted Stock Unit

$ 0.0001 (1)

02/20/2013

02/20/2013

C

875

(2)

(2)

Common Stock

875

$ 0

0

D

Restricted Stock Unit

$ 0.0001 (1)

02/20/2013

02/20/2013

C

2,100

(3)

(3)

Common Stock

2,100

$ 0

6,300

D

Restricted Stock Unit

$ 0.0001 (1)

02/20/2013

02/20/2013

A

6,000

(4)

(4)

Common Stock

6,000

$ 0

6,000

D

Market Stock Unit

$ 0.0001 (1)

02/20/2013

02/20/2013

A

9,000

(5)

(5)

Common Stock

9,000

$ 0

9,000

D

Reporting Owners

Reporting Owner Name / Address	Relationships
	Director	10% Owner	Officer	Other
Puco Christopher C. C/O ALIGN TECHNOLOGY INC. 2560 ORCHARD PARKWAY SAN JOSE, CA 95131			VP, No. American Sales

Signatures

/s/ Roger E. George Atty-In-Fact for Christopher C. Puco		02/21/2013
**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)	Represents par value of ALGN common stock.
(2)	1/4th of the restricted stock unit granted on February 20, 2009 became vested on February 20, 2013and shares were delivered to reporting person on that date.
(3)	1/4th of the restricted stock unit granted on February 20, 2012 became vested on February 20, 2013 and shares were delivered to reporting person on that date. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(4)	1/4th of the restricted stock unit will become vested on February 20, 2014 and 1/4 of the restricted stock will vest annually thereafter. Shares will be delivered to reporting person on each vest date.
(5)	Represents the maximum number of shares which may be issued under the market stock unit. All of the shares which may be issued under the market stock unit will vest on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

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