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 *
HOGAN JOSEPH M
  2. Issuer Name and Ticker or Trading Symbol
ALIGN TECHNOLOGY INC [ALGN] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
__X__ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
PRESIDENT AND CEO
(Last)
(First)
(Middle)
C/O ALIGN TECHNOLOGY INC., 410 NO. SCOTTSDALE RD., SUITE 1300		 3. Date of Earliest Transaction (Month/Day/Year)
02/20/2024
(Street)

TEMPE, AZ 85281		 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 02/20/2024   M   19,574 A $ 0 228,327 (1) D  
Common Stock 02/20/2024   F   8,674 D $ 313.53 219,653 D  
Common Stock               1,500 I See Footnotes (2)

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
Restricted Stock Unit $ 0.0001 (3) 02/20/2024   M     2,716   (4)   (4) Common Stock 2,716 $ 0 0 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2024   M     1,412   (5)   (5) Common Stock 1,412 $ 0 1,412 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2024   M     1,865   (6)   (6) Common Stock 1,865 $ 0 3,730 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2024   M     3,673   (7)   (7) Common Stock 3,673 $ 0 11,017 D  
Market Stock Unit $ 0.0001 (3) 02/20/2024   M     9,908   (8)   (8) Common Stock 9,908 $ 0 0 D  
Restricted Stock Unit $ 0.0001 (3) 02/20/2024   A   13,588     (9)   (9) Common Stock 13,588 $ 0 13,588 D  
Market Stock Unit $ 0.0001 (3) 02/20/2024   A   31,707     (10)   (10) Common Stock 31,707 $ 0 31,707 D  

Reporting Owners

Reporting Owner Name / Address Relationships
 Director  10% Owner  Officer  Other
HOGAN JOSEPH M
C/O ALIGN TECHNOLOGY INC.
410 NO. SCOTTSDALE RD., SUITE 1300
TEMPE, AZ 85281		   X     PRESIDENT AND CEO  

Signatures

 /s/ Julie Ann Coletti, Attorney-in-Fact for Joseph Hogan   02/22/2024
**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 89 shares acquired on January 31, 2024 under the ALGN Employee Stock Purchase Plan.
(2) These securities are held directly by the spouse of the reporting person. The reporting person disclaims beneficial ownership of these securities, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or any other purpose.
(3) Represents par value of ALGN common stock.
(4) 1/4th of the restricted stock unit granted on February 20, 2020 became vested on February 20, 2024 and shares were delivered to reporting person on such vest date.
(5) 1/4th of the restricted stock unit granted on February 20, 2021 became vested on February 20, 2024 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on such vest date.
(6) 1/4th of the restricted stock unit granted on February 20, 2022 became vested on February 20, 2924 and shares were delivered to reporting person. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(7) 1/4th of the restricted stock unit granted on February 20, 2023 became vested on February 20, 2024 and shares were delivered to reporting person on such vest date. 1/4th of the restricted stock unit will continue to vest annually and shares will be delivered to reporting person on each vest date.
(8) The market stock unit granted on February 20, 2021 vested on February 20, 2024 and shares were delivered to reporting person on such vest date.
(9) 1/14th of the restricted stock unit granted on February 20, 2024 will become vested on February 20, 2025 and shares will be delivered to reporting person on such date. 1/14th of restricted stock unit will vest annually thereafter and shares will be delivered to reporting person on such vest date.
(10) Represents the number of shares which may be issued at target under the market stock unit. If performance exceeds target, the maximum number of shares that may vest is 250% of the at target amount. Vesting, if any, of the market stock unit occurs on the last day of the third year of the Performance Period (as defined in the market stock unit agreement).

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