ALIGN TECHNOLOGY INC — Director's Dealing 2010

May 24, 2010

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALIGN TECHNOLOGY INC (ALGN)
CIK: 0001097149
Period of Report: 2010-05-20

Reporting Person: SANTORA GREG J (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2010-05-20	Common Stock	C	3000	$0.00	Acquired	9000	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2010-05-20	Restricted Stock Unit	$0.0001	C	3000	Disposed		Common Stock (3000)	Direct
2010-05-20	Stock Option (right to buy)	$16.01	A	10000	Acquired	2017-05-20	Common Stock (10000)	Direct
2010-05-20	Restricted Stock Unit	$0.0001	A	3000	Acquired		Common Stock (3000)	Direct

Footnotes

F1: Represents par value of ALGN common stock.

F2: 100% of the restricted stock unit granted on May 21, 2009 became vested on May 20, 2010 and shares were delivered to reporting person on such vest date.

F3: Represents an option in which all of the shares underlying the option become vested and exercisable upon the earlier of (i) one year after the date of grant or (ii) the date of issuer's annual meeting of stockholders to be held in 2011.

F4: 100%h of the restricted stock unit will become vested upon the earlier of (i) one year after the date of grant or (ii) the date of issuer's annual meeting of stockholders to be held in 2011. Shares will be delivered to reporting person on each vest date.