Biogen Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Apr 20, 2026	179.54	183.69	178.72	183.41	-	3.42%	644,719
Apr 17, 2026	176.29	178.41	175.69	177.35	177.35	0.76%	1,239,039
Apr 16, 2026	178.82	179.99	174.85	176.02	176.02	-2.50%	937,563
Apr 15, 2026	179.36	180.87	177.70	180.54	180.54	0.88%	1,148,879
Apr 14, 2026	177.71	181.77	177.45	178.96	178.96	1.47%	1,550,555
Apr 13, 2026	172.62	176.79	171.22	176.37	176.37	1.96%	1,412,384
Apr 10, 2026	177.97	177.97	172.32	172.97	172.97	-2.34%	1,501,918
Apr 9, 2026	177.81	180.06	174.97	177.11	177.11	-1.55%	1,266,386
Apr 8, 2026	178.24	180.24	176.35	179.90	179.90	2.44%	1,286,287
Apr 7, 2026	172.20	175.64	170.43	175.61	175.61	1.90%	1,512,043
Apr 6, 2026	177.00	177.39	168.64	172.34	172.34	-2.82%	2,124,079
Apr 2, 2026	181.46	182.23	176.39	177.34	177.34	-3.50%	1,338,839
Apr 1, 2026	183.16	186.31	181.71	183.78	183.78	0.25%	1,389,402
Mar 31, 2026	179.46	184.68	171.37	183.33	183.33	-2.26%	2,717,088
Mar 30, 2026	186.16	190.09	185.54	187.57	187.57	2.03%	799,071
Mar 27, 2026	191.06	191.06	183.01	183.84	183.84	-3.78%	934,949
Mar 26, 2026	189.00	192.28	188.36	191.06	191.06	0.99%	879,043
Mar 25, 2026	184.91	189.38	184.91	189.18	189.18	2.85%	775,027
Mar 24, 2026	182.63	184.84	180.33	183.94	183.94	0.16%	636,241
Mar 23, 2026	183.48	185.00	183.00	183.64	183.64	1.20%	998,056
Mar 20, 2026	181.46	181.46	181.46	181.46	181.46	-1.06%	1,532,554
Mar 19, 2026	182.18	185.45	181.68	183.41	183.41	0.60%	768,646
Mar 18, 2026	184.13	184.32	180.48	182.31	182.31	-1.61%	846,255
Mar 17, 2026	184.73	186.52	183.20	185.29	185.29	1.11%	810,219
Mar 16, 2026	182.75	184.62	181.88	183.26	183.26	0.94%	995,911
Mar 13, 2026	185.99	188.00	181.46	181.55	181.55	-1.81%	1,092,301
Mar 12, 2026	187.86	188.91	184.63	184.90	184.90	-2.93%	851,563
Mar 11, 2026	187.54	192.99	187.54	190.48	190.48	1.10%	864,392
Mar 10, 2026	187.69	190.78	187.02	188.41	188.41	0.09%	687,662
Mar 9, 2026	183.91	188.50	182.60	188.24	188.24	1.82%	651,626
Mar 6, 2026	186.25	186.25	181.24	184.87	184.87	-1.71%	772,906
Mar 5, 2026	187.97	190.99	185.95	188.08	188.08	-0.98%	893,331
Mar 4, 2026	185.06	190.37	183.16	189.94	189.94	3.22%	952,927
Mar 3, 2026	185.01	187.05	181.79	184.02	184.02	-2.14%	1,049,925
Mar 2, 2026	190.22	190.75	186.72	188.05	188.05	-1.97%	691,597
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