ALGN: Historical Prices for Align Technology, Inc.

Date	Open	High	Low	Close	Volume	Adj Close*
24-Nov-09	15.74	16.07	15.62	15.89	263,100	15.89
23-Nov-09	15.65	16.25	15.64	15.81	239,400	15.81
20-Nov-09	15.72	15.98	15.52	15.54	418,000	15.54
19-Nov-09	16.32	16.54	15.68	15.85	526,100	15.85
18-Nov-09	16.80	16.80	16.32	16.46	297,000	16.46
17-Nov-09	16.78	16.81	16.47	16.75	403,400	16.75
16-Nov-09	15.93	16.86	15.93	16.79	727,900	16.79
13-Nov-09	15.59	15.88	15.38	15.78	336,500	15.78
12-Nov-09	16.07	16.13	15.52	15.59	467,300	15.59
11-Nov-09	16.36	16.36	15.94	16.07	392,700	16.07
10-Nov-09	16.54	16.75	16.10	16.20	302,200	16.20
9-Nov-09	16.58	16.64	16.19	16.60	499,100	16.60
6-Nov-09	16.92	16.95	16.41	16.52	384,500	16.52
5-Nov-09	16.80	17.39	16.73	17.08	724,200	17.08
4-Nov-09	16.35	16.98	16.31	16.79	1,004,600	16.79
3-Nov-09	16.00	16.37	15.85	16.35	671,500	16.35
2-Nov-09	15.87	16.19	15.84	16.05	796,100	16.05
30-Oct-09	15.95	16.12	15.55	15.72	917,600	15.72
29-Oct-09	16.13	16.50	15.87	15.94	595,200	15.94
28-Oct-09	16.84	17.00	15.99	16.05	1,099,500	16.05
27-Oct-09	16.96	17.23	16.53	16.81	1,328,000	16.81
26-Oct-09	17.62	17.70	16.98	17.03	1,250,500	17.03
23-Oct-09	18.00	18.85	17.53	17.70	4,805,000	17.70
22-Oct-09	14.97	15.61	14.54	15.38	890,700	15.38
21-Oct-09	15.20	15.60	14.86	14.94	567,400	14.94
20-Oct-09	15.61	15.90	15.12	15.22	541,700	15.22
19-Oct-09	15.72	15.80	15.46	15.60	716,500	15.60
16-Oct-09	15.77	15.81	15.46	15.63	557,700	15.63
15-Oct-09	15.91	16.09	15.66	15.82	407,500	15.82
14-Oct-09	16.19	16.19	15.83	15.92	614,200	15.92
13-Oct-09	16.05	16.14	15.87	16.09	331,000	16.09
12-Oct-09	16.18	16.34	15.88	16.02	383,500	16.02
9-Oct-09	15.91	16.26	15.77	16.25	574,200	16.25
8-Oct-09	16.33	16.45	15.90	15.93	600,800	15.93
7-Oct-09	15.98	16.32	15.78	16.29	486,300	16.29
6-Oct-09	15.85	16.42	15.55	16.25	822,100	16.25
5-Oct-09	15.17	15.90	15.17	15.76	1,026,300	15.76
2-Oct-09	14.43	15.35	14.32	15.07	1,501,700	15.07
1-Oct-09	14.68	14.91	14.18	14.60	849,700	14.60
30-Sep-09	14.31	14.39	13.70	14.22	875,000	14.22
29-Sep-09	14.60	14.70	14.15	14.35	516,200	14.35
28-Sep-09	14.73	14.91	14.51	14.63	376,400	14.63
25-Sep-09	14.65	14.83	14.40	14.57	532,800	14.57
24-Sep-09	14.40	14.67	14.40	14.61	678,700	14.61
23-Sep-09	14.06	14.27	13.90	14.00	423,400	14.00
22-Sep-09	14.07	14.31	13.90	14.00	424,100	14.00
21-Sep-09	13.58	14.50	13.43	14.03	736,800	14.03
18-Sep-09	13.54	13.80	13.44	13.68	666,600	13.68
17-Sep-09	13.50	13.68	13.44	13.51	296,400	13.51
16-Sep-09	13.61	13.74	13.40	13.53	284,800	13.53
15-Sep-09	13.67	13.77	13.47	13.61	244,100	13.61
14-Sep-09	13.50	13.87	13.42	13.72	325,900	13.72
11-Sep-09	13.50	13.70	13.35	13.62	498,900	13.62
10-Sep-09	13.42	13.68	13.26	13.45	332,000	13.45
9-Sep-09	13.19	13.47	13.14	13.34	254,000	13.34
8-Sep-09	13.13	13.37	12.99	13.16	344,100	13.16
4-Sep-09	13.06	13.10	12.74	13.08	290,000	13.08
3-Sep-09	13.08	13.18	12.70	13.05	230,500	13.05
2-Sep-09	12.83	13.17	12.70	13.07	710,600	13.07
1-Sep-09	13.26	13.62	12.75	12.91	610,600	12.91
31-Aug-09	13.36	13.56	13.08	13.40	519,900	13.40
28-Aug-09	13.37	13.78	13.37	13.50	422,100	13.50
27-Aug-09	13.81	13.88	13.47	13.75	481,400	13.75
26-Aug-09	13.71	14.00	13.31	13.78	345,100	13.78
25-Aug-09	13.56	13.96	13.56	13.76	551,600	13.76
24-Aug-09	13.30	13.67	13.08	13.60	623,900	13.60
* Close price adjusted for dividends and splits.

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