BIIB: Historical Prices for Biogen Idec Inc

Date	Open	High	Low	Close	Volume	Adj Close*
20-Nov-09	45.60	46.52	45.56	46.38	2,829,100	46.38
19-Nov-09	46.10	46.30	45.54	45.85	3,073,600	45.85
18-Nov-09	45.95	46.33	45.68	46.16	2,593,800	46.16
17-Nov-09	46.23	46.41	45.88	46.05	4,285,700	46.05
16-Nov-09	46.77	46.95	46.40	46.53	5,290,900	46.53
13-Nov-09	46.33	47.06	46.31	46.72	2,806,600	46.72
12-Nov-09	46.36	46.80	46.10	46.50	3,910,200	46.50
11-Nov-09	45.46	46.55	45.45	46.43	3,894,300	46.43
10-Nov-09	45.03	46.15	45.00	45.51	4,664,700	45.51
9-Nov-09	45.64	45.76	44.91	45.41	4,801,800	45.41
6-Nov-09	44.44	46.47	44.11	45.76	8,636,900	45.76
5-Nov-09	43.00	44.72	42.99	44.39	6,792,100	44.39
4-Nov-09	43.31	43.31	42.68	42.80	5,209,500	42.80
3-Nov-09	42.70	43.44	42.54	43.25	4,420,200	43.25
2-Nov-09	42.86	43.29	42.31	42.59	4,535,300	42.59
30-Oct-09	42.85	43.41	42.10	42.13	3,532,100	42.13
29-Oct-09	43.63	43.71	41.75	43.08	5,338,600	43.08
28-Oct-09	44.12	44.96	43.48	43.53	3,395,700	43.53
27-Oct-09	44.28	45.11	44.25	44.55	4,669,700	44.55
26-Oct-09	43.83	44.66	43.55	44.13	4,805,800	44.13
23-Oct-09	45.00	45.09	43.58	43.81	11,117,100	43.81
22-Oct-09	46.38	47.59	46.30	47.23	3,647,200	47.23
21-Oct-09	47.41	47.66	46.26	46.43	6,037,200	46.43
20-Oct-09	48.32	48.80	47.33	48.06	5,792,300	48.06
19-Oct-09	49.36	50.01	49.03	49.39	2,301,000	49.39
16-Oct-09	49.53	49.68	48.58	49.20	3,509,800	49.20
15-Oct-09	49.97	50.07	49.57	49.79	3,262,100	49.79
14-Oct-09	49.14	50.28	49.14	50.04	3,249,900	50.04
13-Oct-09	48.53	48.98	48.38	48.80	1,378,700	48.80
12-Oct-09	49.10	49.35	48.36	48.69	1,592,300	48.69
9-Oct-09	48.93	49.05	48.41	49.01	1,560,100	49.01
8-Oct-09	49.59	49.59	48.47	48.60	1,871,900	48.60
7-Oct-09	49.42	49.42	48.72	49.17	1,383,400	49.17
6-Oct-09	48.68	49.46	48.35	49.02	1,967,700	49.02
5-Oct-09	48.90	48.98	48.34	48.54	2,096,700	48.54
2-Oct-09	49.48	49.48	48.69	48.89	2,453,200	48.89
1-Oct-09	50.44	50.48	49.25	49.34	3,249,500	49.34
30-Sep-09	50.89	50.90	49.87	50.52	3,463,300	50.52
29-Sep-09	50.56	52.12	50.00	51.41	4,462,000	51.41
28-Sep-09	50.12	51.25	50.03	50.57	1,407,800	50.57
25-Sep-09	50.33	50.37	50.00	50.11	2,121,200	50.11
24-Sep-09	50.35	50.64	49.99	50.23	1,682,200	50.23
23-Sep-09	50.57	51.04	50.17	50.23	1,340,900	50.23
22-Sep-09	50.84	50.95	49.90	50.53	1,829,400	50.53
21-Sep-09	49.82	51.36	49.30	50.89	2,482,200	50.89
18-Sep-09	50.81	50.81	49.84	50.00	3,794,800	50.00
17-Sep-09	51.27	51.35	50.25	50.45	3,203,700	50.45
16-Sep-09	51.40	51.72	51.06	51.55	2,481,500	51.55
15-Sep-09	50.60	51.49	50.40	51.41	2,046,200	51.41
14-Sep-09	50.35	51.20	50.35	50.83	2,294,100	50.83
11-Sep-09	50.63	50.99	50.08	50.84	1,929,400	50.84
10-Sep-09	51.21	51.21	50.21	50.33	2,538,700	50.33
9-Sep-09	51.13	51.50	50.49	51.04	2,861,500	51.04
8-Sep-09	51.06	51.70	51.01	51.18	2,888,800	51.18
4-Sep-09	50.90	51.09	50.29	51.01	4,276,300	51.01
3-Sep-09	49.07	49.97	49.05	49.91	2,371,600	49.91
2-Sep-09	48.78	49.47	48.64	49.19	2,061,800	49.19
1-Sep-09	49.61	50.61	48.98	49.24	3,144,400	49.24
31-Aug-09	49.28	50.35	49.22	50.20	2,688,000	50.20
28-Aug-09	50.23	50.41	49.53	49.93	1,952,300	49.93
27-Aug-09	49.28	50.23	49.24	50.05	2,476,900	50.05
26-Aug-09	49.59	50.00	49.42	49.92	1,916,400	49.92
25-Aug-09	49.55	49.90	49.29	49.71	1,965,600	49.71
24-Aug-09	49.59	49.84	49.19	49.53	1,692,900	49.53
21-Aug-09	49.45	50.43	49.16	49.97	2,238,200	49.97
20-Aug-09	49.05	49.85	48.93	49.57	1,777,300	49.57
* Close price adjusted for dividends and splits.

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