Biogen Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 12, 2026	191.20	191.50	191.20	191.20	-	0.34%	-
Feb 11, 2026	190.67	191.48	187.00	190.55	190.55	-0.75%	718
Feb 10, 2026	193.05	198.61	190.53	191.98	191.98	-2.03%	3,901
Feb 9, 2026	201.24	203.03	192.45	195.95	195.95	-1.62%	1,071
Feb 6, 2026	184.00	199.73	184.00	199.18	199.18	7.08%	1,475
Feb 5, 2026	182.55	187.55	178.77	186.01	186.01	0.40%	335
Feb 4, 2026	175.82	185.26	173.71	185.26	185.26	4.16%	302
Feb 3, 2026	178.96	182.79	175.94	177.86	177.86	0.08%	1,861
Feb 2, 2026	176.00	180.76	175.96	177.72	177.72	0.40%	1,716
Jan 30, 2026	179.77	179.77	171.10	177.01	177.01	0.52%	264
Jan 29, 2026	175.00	176.60	172.08	176.10	176.10	1.98%	255
Jan 28, 2026	174.00	176.31	170.90	172.67	172.67	-0.84%	449
Jan 27, 2026	173.13	175.67	170.21	174.13	174.13	0.84%	393
Jan 26, 2026	171.68	173.80	170.64	172.68	172.68	1.29%	359
Jan 23, 2026	173.87	177.00	170.31	170.48	170.48	-1.81%	778
Jan 22, 2026	169.01	176.98	169.01	173.63	173.63	1.72%	1,478
Jan 21, 2026	164.53	170.87	164.53	170.69	170.69	3.70%	1,676
Jan 20, 2026	162.00	164.97	160.01	164.60	164.60	0.12%	1,031
Jan 16, 2026	167.98	169.34	164.40	164.40	164.40	-2.48%	1,007
Jan 15, 2026	170.25	173.70	167.05	168.58	168.58	-0.62%	661
Jan 14, 2026	178.00	178.00	165.71	169.64	169.64	-5.92%	5,455
Jan 13, 2026	185.20	186.73	179.92	180.31	180.31	-2.08%	914
Jan 12, 2026	187.78	188.65	182.84	184.14	184.14	-2.21%	590
Jan 9, 2026	186.34	190.01	186.11	188.31	188.31	2.36%	1,077
Jan 8, 2026	186.90	187.49	183.96	183.96	183.96	-0.42%	723
Jan 7, 2026	182.73	186.20	181.50	184.74	184.74	2.41%	602
Jan 6, 2026	172.56	182.27	172.56	180.39	180.39	3.51%	1,538
Jan 5, 2026	178.48	180.17	171.56	174.28	174.28	-0.94%	835
Jan 2, 2026	176.93	177.16	174.46	175.94	175.93	-0.56%	281
Dec 31, 2025	175.81	177.40	174.46	176.93	176.93	0.19%	217
Dec 30, 2025	177.06	178.29	174.47	176.59	176.59	-0.14%	277
Dec 29, 2025	173.73	178.42	173.73	176.84	176.84	0.05%	473
Dec 24, 2025	176.41	176.94	173.58	176.76	176.76	1.38%	471
Dec 23, 2025	176.99	176.99	173.82	174.35	174.35	-0.57%	366
Dec 22, 2025	175.00	176.88	174.00	175.36	175.36	0.64%	1,001
Dec 19, 2025	168.63	174.83	168.63	174.24	174.24	1.93%	549
Dec 18, 2025	169.31	172.51	168.69	170.95	170.95	-0.91%	478
Dec 17, 2025	171.17	172.78	169.54	172.52	172.52	1.21%	250
Dec 16, 2025	176.60	176.60	169.81	170.46	170.46	-2.41%	1,551
Dec 15, 2025	173.96	175.18	169.89	174.67	174.67	0.44%	1,490
Dec 12, 2025	173.60	174.86	171.48	173.92	173.92	-1.01%	908
Dec 11, 2025	178.00	180.25	173.90	175.70	175.70	0.34%	649
Dec 10, 2025	173.11	176.00	168.00	175.10	175.10	-1.67%	2,704
Dec 9, 2025	178.90	181.20	177.67	178.08	178.08	-1.25%	649
Dec 8, 2025	180.82	182.60	179.28	180.33	180.33	-1.27%	1,507
Dec 5, 2025	179.68	183.00	179.68	182.66	182.66	0.48%	290
Dec 4, 2025	183.00	183.41	177.58	181.79	181.79	0.14%	395
Dec 3, 2025	177.39	182.49	177.39	181.53	181.53	1.66%	499
Dec 2, 2025	177.29	179.49	174.67	178.56	178.56	0.63%	1,772
Dec 1, 2025	180.71	182.09	176.39	177.44	177.44	-2.47%	1,100