Ownership Submission
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 *
Kolli Sreelakshmi
   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, Info Technology
(Last)
(First)
(Middle)
C/O ALIGN TECHNOLOGY INC., 2560 ORCHARD PARKWAY		 3. Date of Earliest Transaction (Month/Day/Year)
02/20/2017
(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 02/20/2017 02/20/2017 M   10,741 A $ 0 28,300 (1) D  
Common Stock 02/20/2017 02/20/2017 F   4,515 D $ 101.765 23,785 D  
Common Stock               2,400 I See Footnote (2)

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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 (3) 02/20/2017 02/20/2017 M     2,350   (4)   (4) Common Stock 2,350 $ 0 0 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2017 02/20/2017 M     2,070   (5)   (5) Common Stock 2,070 $ 0 2,070 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2017 02/20/2017 M     2,598   (6)   (6) Common Stock 2,598 $ 0 0 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2017 02/20/2017 M     1,820   (7)   (7) Common Stock 1,820 $ 0 3,640 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2017 02/20/2017 M     1,903   (8)   (8) Common Stock 1,903 $ 0 5,706 D  
Restricted Stock Unit $ 0.0001 (2) 02/20/2017 02/20/2017 A   5,000     (9)   (9) Common Stock 5,000 $ 0 5,000 D  
Market Stock Unit $ 0.0001 (2) 02/20/2017 02/20/2017 A   10,000     (10)   (10) Common Stock 10,000 $ 0 10,000 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
Kolli Sreelakshmi
C/O ALIGN TECHNOLOGY INC.
2560 ORCHARD PARKWAY
SAN JOSE, CA 95131		       VP, Info Technology  

Signatures

 Roger E. George Atty-In-Fact for Sreelakshmi Kolli   02/22/2017
**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 453 shares issued on January 31, 2017 under the ALGN ESPP.
(2) Held jointly with spouse.
(3) Represents par value of ALGN common stock.
(4) 1/4th of the restricted stock unit granted on February 20, 2013 became vested on February 20, 2017 and shares were delivered to reporting person on February 21, 2017.
(5) 1/4th of the restricted stock unit granted on February 20, 2014 became vested on February 20, 2017 and shares were delivered to reporting person on February 21, 2017. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(6) 1/4th of the restricted stock unit granted on February 20, 2014 became vested on February 20, 2017 and shares were delivered to reporting person on February 21, 2017.
(7) 1/4th of the restricted stock unit granted on February 20, 2015 became vested on February 20, 2017 and shares were delivered to reporting person on February 21, 2017. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(8) 1/4th of the restricted stock unit granted on February 20, 2016 became vested on February 20, 2017 and shares were delivered to reporting person on February 21, 2017. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(9) 1/4th of the restricted stock unit granted on February 20, 2017 will become vested on February 20, 2018 and shares were delivered to reporting person on such vest date. The restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(10) 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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