Biogen Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Mar 10, 2026	187.69	190.78	187.02	188.41	188.41	0.09%	687,022
Mar 9, 2026	183.91	188.50	182.60	188.24	188.24	1.82%	616,754
Mar 6, 2026	186.25	186.25	181.24	184.87	184.87	-1.71%	772,743
Mar 5, 2026	187.97	190.99	185.95	188.08	188.08	-0.98%	893,267
Mar 4, 2026	185.06	190.37	183.16	189.94	189.94	3.22%	951,766
Mar 3, 2026	185.01	187.05	181.79	184.02	184.02	-2.14%	1,049,589
Mar 2, 2026	190.22	190.75	186.72	188.05	188.05	-1.97%	690,801
Feb 27, 2026	187.51	192.46	186.62	191.82	191.82	2.02%	1,402,201
Feb 26, 2026	190.30	190.74	185.90	188.02	188.02	-1.42%	988,117
Feb 25, 2026	194.23	196.73	189.89	190.73	190.73	-2.25%	942,723
Feb 24, 2026	196.03	198.72	194.43	195.13	195.13	-0.62%	716,382
Feb 23, 2026	191.82	197.05	189.11	196.34	196.34	2.24%	878,939
Feb 20, 2026	190.78	192.60	189.95	192.03	192.03	-0.03%	799,225
Feb 19, 2026	193.51	195.00	191.05	192.08	192.08	-1.06%	993,273
Feb 18, 2026	195.32	195.68	193.11	194.13	194.13	-0.76%	1,049,036
Feb 17, 2026	197.46	200.29	193.37	195.62	195.62	-0.46%	986,535
Feb 13, 2026	196.27	199.50	195.52	196.52	196.52	0.52%	1,352,792
Feb 12, 2026	190.15	196.00	189.00	195.50	195.50	2.25%	1,657,480
Feb 11, 2026	188.35	192.00	187.20	191.20	191.20	1.17%	996,929
Feb 10, 2026	194.07	195.72	188.74	188.99	188.99	-2.49%	1,836,221
Feb 9, 2026	199.83	201.00	191.88	193.81	193.81	-3.66%	2,096,252
Feb 6, 2026	187.01	202.41	184.60	201.18	201.18	8.53%	3,404,876
Feb 5, 2026	184.87	187.73	184.54	185.36	185.36	-0.05%	2,542,641
Feb 4, 2026	177.25	186.24	177.10	185.45	185.45	4.92%	2,076,363
Feb 3, 2026	177.79	182.67	176.19	176.76	176.76	-1.30%	1,594,142
Feb 2, 2026	179.30	180.76	177.58	179.09	179.09	-0.44%	1,288,816
Jan 30, 2026	177.09	180.14	175.96	179.89	179.89	2.11%	1,487,978
Jan 29, 2026	174.88	177.20	173.51	176.18	176.18	0.77%	1,146,709
Jan 28, 2026	173.63	175.06	170.85	174.83	174.83	0.41%	1,304,662
Jan 27, 2026	173.02	176.14	172.23	174.12	174.12	0.58%	748,078
Jan 26, 2026	171.67	174.31	170.59	173.12	173.12	0.89%	1,049,188
Jan 23, 2026	173.17	173.90	170.04	171.59	171.59	-1.27%	1,250,463
Jan 22, 2026	171.78	175.29	171.65	173.80	173.80	0.68%	996,425
Jan 21, 2026	165.31	172.87	165.31	172.62	172.62	4.38%	1,447,089
Jan 20, 2026	161.51	165.61	160.37	165.38	165.38	0.58%	1,879,947
Jan 16, 2026	168.87	169.34	163.74	164.42	164.42	-2.46%	1,816,538
Jan 15, 2026	169.03	169.79	166.79	168.57	168.57	-0.44%	1,562,727
Jan 14, 2026	177.73	178.41	165.58	169.31	169.31	-5.04%	3,635,883
Jan 13, 2026	185.42	186.32	177.05	178.30	178.30	-3.95%	1,597,380
Jan 12, 2026	188.00	188.00	182.73	185.63	185.63	-1.06%	1,280,360
Jan 9, 2026	186.74	190.20	186.49	187.62	187.62	0.87%	1,416,702
Jan 8, 2026	187.02	187.77	183.50	186.00	186.00	-0.49%	1,622,749
Jan 7, 2026	181.70	187.06	181.70	186.91	186.91	2.35%	2,122,447
Jan 6, 2026	174.94	182.97	174.30	182.61	182.61	4.57%	2,115,650
Jan 5, 2026	175.73	180.56	171.61	174.63	174.63	-1.79%	1,663,631
Jan 2, 2026	175.37	178.24	174.28	177.82	177.82	1.04%	1,095,744
Dec 31, 2025	175.76	177.19	175.02	175.99	175.99	-0.23%	890,441
Dec 30, 2025	176.30	176.99	175.72	176.40	176.40	-0.24%	609,867
Dec 29, 2025	177.00	178.46	176.31	176.83	176.83	-0.14%	928,193
Dec 26, 2025	175.30	177.19	175.00	177.08	177.08	0.43%	687,403