SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* LACOB JOSEPH (Last) (First) (Middle) C/O ALIGN TECHNOLOGY INC. 881 MARTIN AVE (Street) SANTA CLARA CA 95050 (City) (State) (Zip)	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 Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 03/27/2008
	4. If Amendment, Date of 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

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	03/27/2008	03/27/2008	M		60,000	A	$0.05	758,327(1)	D
Common Stock	03/27/2008	03/27/2008	M		8,000	A	$9.8	766,327	D
Common Stock	03/27/2008	03/27/2008	M		8,000	A	$4.04	774,327	D
Common Stock	03/27/2008	03/27/2008	M		43,000	A	$6.15	817,327	D
Common Stock	03/27/2008	03/27/2008	M		8,000	A	$8.84	825,327	D
Common Stock	03/27/2008	03/27/2008	M		8,000	A	$7.19	833,327	D
Common Stock	03/27/2008	03/27/2008	M		8,000	A	$7.35	841,327	D
Common Stock								364,006	I	Trust for reporting person
Common Stock								148,767	I	Trust for children
Common Stock								746,210(2)	I	By KCPB VIII
Common Stock								43,263(2)	I	By KPCB VIII FF
Common Stock								20,258(2)	I	By KPCB Life

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 Securities Underlying Derivative Security (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: 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
Stock Option (right to buy)	$0.05	03/27/2008	03/27/2008	M			60,000	05/29/1999	05/29/2008	Common Stock	60,000	$0	0	D
Stock Option (right to buy)	$9.8	03/27/2008	03/27/2008	M			8,000	05/15/2002	05/15/2011	Common Stock	8,000	$0	0	D
Stock Option (right to buy)	$4.04	03/27/2008	03/27/2008	M			8,000	05/16/2003	05/16/2012	Common Stock	8,000	$0	0	D
Stock Option (right to buy)	$6.15	03/27/2008	03/27/2008	M			43,000	04/23/2004	04/23/2013	Common Stock	43,000	$0	0	D
Stock Option (right to buy)	$8.84	03/27/2008	03/27/2008	M			8,000	05/15/2004	05/15/2013	Common Stock	8,000	$0	0	D
Stock Option (right to buy)	$7.19	03/27/2008	03/27/2008	M			8,000	05/25/2006	05/25/2015	Common Stock	8,000	$0	0	D
Stock Option (right to buy)	$7.35	03/27/2008	03/27/2008	M			8,000	05/24/2007	05/24/2016	Common Stock	8,000	$0	0	D

Explanation of Responses:

1. Since the date of the reporting person's last ownership report, and in connection with acquisition of shares reported on this Form 4, he transferred an aggregate of 788,650 shares of Common Stock pursuant to a divorce settlement. The reporting person no longer reports as beneficially owned any shares held by his ex-wife.

2. Mr. Lacob is a general partner of KPCB VIII Associates, L.P., a CA limited partnership ("KPCB VIII Associates"). KPCB VIII Associates is the general partner of Kleiner Perkins Caufield & Byers VIII, L.P., a CA limited partnership ("KPCB VIII") and KPCB VIII Founders Fund L.P., a CA limited partnership ("KPCB VIII FF"). Mr. Lacob is also a general partner of KPCB VII Associates, L.P., a CA limited partnership ("KPCB VII Associates"). KPCB VII Associates is the general partner of KPCB Life Sciences Zaibatsu Fund II, L.P., a CA limited partnership ("KPCB Life"). Mr. Lacob disclaims beneficial ownership of the shares of the Issuer's common stock held directly by KPCB VIII, KPCB VIII FF, KPCB Life, except to the extent of any indirect pecuniary interest in his distributive share therein.

	Roger E. George, Atty-in-Fact for Joseph S. Lacob	03/28/2008
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* 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).
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