ALIGN TECHNOLOGY INC — Director's Dealing 2018

May 14, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: ALIGN TECHNOLOGY INC (ALGN)
CIK: 0001097149
Period of Report: 2018-05-11

Reporting Person: LACOB JOSEPH (Director)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2018-05-11	Common Stock	M	10000	$24.21	Acquired	306264	Indirect
2018-05-11	Common Stock	S	9432	$285.7844	Disposed	296832	Indirect
2018-05-11	Common Stock	S	568	$286.4455	Disposed	296264	Indirect
2018-05-14	Common Stock	M	10000	$11.81	Acquired	306264	Indirect
2018-05-14	Common Stock	S	10000	$293	Disposed	296264	Indirect

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-05-11	Stock Option (Right to buy)	$24.21	M	10000	Disposed	2018-05-19	Common Stock (10000)	Direct
2018-05-14	Stock Option (Right to Buy)	$11.81	M	10000	Disposed	2019-05-21	Common Stock (10000)	Direct

Footnotes

F1: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $285.6818 to $286.29, inclusive. The reporting person undertakes to provide Align Technology, Inc., any security holder of Align Technology, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.

F2: The price reported in column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $286.02 to $286.735, inclusive. The reporting person undertakes to provide Align Technology, Inc., any security holder of Align Technology, Inc. or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.