ALIGN TECHNOLOGY INC — Director's Dealing 2010

Feb 24, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALIGN TECHNOLOGY INC (ALGN)
CIK: 0001097149
Period of Report: 2010-02-19

Reporting Person: Ellis Dan Scott (VP, WW Sales)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-02-20	Common Stock	C	8981	—	Acquired	24167	Direct
2010-02-20	Common Stock	F	3297	$17.94	Disposed	20870	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-02-19	Right to Buy (Common Stock)	$17.94	A	33000	Acquired	2020-02-19	Common Stock (33000)	Direct
2010-02-20	Restricted Stock Unit	$0.0001	A	11000	Acquired		Common Stock (11000)	Direct
2010-02-20	Restricted Stock Unit	$0.0001	C	1584	Disposed		Common (1584)	Direct
2010-02-20	Restricted Stock Unit	$0.0001	C	563	Disposed		Common Stock (563)	Direct
2010-02-20	Restricted Stock Unit	$0.0001	C	3834	Disposed		Common Stock (3834)	Direct
2010-02-20	Restricted Stock Unit	$0.0001	C	3000	Disposed		Common Stock (3000)	Direct

Footnotes

F1: Includes 417 shares acquired under the ALGN ESPP on January 29, 2010.

F2: 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 grant shall become vested each month thereafter.

F3: Represents par value of ALGN Common Stock

F4: 1/4th of the restricted stock unit will become vested one year after the date of grant and 1/4th of the restricted stock unit will vest annually thereafter. Shares will be delivered to reporting peson on each vest date.

F5: 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 will continue to vest annually and shares will be delivered to reporting person on each vest date.

F6: 1/16th of the restricted stock unit granted on February 20, 2007 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 quarterly and shares will be delivered to reporting person on each vest date.

F7: 1/3rd of the restricted stock unit granted on February 20, 2008 became vested on February 20, 2010 and shares were delivered to reporting person on February 22, 2010. The restricted stock unit will vest on February 20, 2011 and shares will be delivered to reporting person on that date.

F8: 1/4th of the restricted stock unit granted on February 20, 2008 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.