$BIIB: Biogen Inc. - Common Stock
2025-12-23 BIIB 2025-12-23 06:01:27 181.76 169.05 0.69% BIIB 2025-12-23 07:01:22 180.87 169.05 0.69% BIIB 2025-12-23 08:01:29 176.99 170.01 0.69% BIIB 2025-12-23 09:01:31 176.99 169.05 -0.30% BIIB 2025-12-23 10:01:40 176.48 169.06 -0.30% BIIB 2025-12-23 11:01:23 174.23 174.01 -0.37% BIIB 2025-12-23 12:01:40 174.50 174.32 -0.12% BIIB 2025-12-23 13:01:21 174.51 174.35 -0.12% BIIB 2025-12-23 14:01:30 174.24 174.15 -0.26% BIIB 2025-12-23 15:01:26 174.85 174.72 0.09% BIIB 2025-12-23 16:01:37 174.64 174.50 -0.04% BIIB 2025-12-23 17:01:23 174.90 173.58 0.07% BIIB 2025-12-23 18:01:48 175.20 173.58 -0.05% BIIB 2025-12-23 21:01:35 0.00 0.00 0.22% 2025-12-24 BIIB 2025-12-24 05:01:20 185.00 0.00 0.22% BIIB 2025-12-24 06:01:33 176.99 169.05 0.22% BIIB 2025-12-24 09:01:19 176.17 169.12 0.22% BIIB 2025-12-24 10:01:32 175.00 169.06 0.22% BIIB 2025-12-24 11:01:30 176.94 176.65 1.16% BIIB 2025-12-24 12:01:27 176.70 176.51 0.98% BIIB 2025-12-24 13:01:20 176.69 176.58 1.04% BIIB 2025-12-24 14:01:29 177.25 176.20 1.34% BIIB 2025-12-24 15:01:23 176.40 176.20 1.34% BIIB 2025-12-24 16:01:27 176.40 175.20 -0.03% BIIB 2025-12-24 17:01:18 177.25 175.96 0.04% BIIB 2025-12-24 18:01:25 0.00 0.00 0.04% 2025-12-26 BIIB 2025-12-26 05:02:02 0.00 170.25 0.04% BIIB 2025-12-26 06:01:53 182.38 176.33 0.04% BIIB 2025-12-26 07:01:43 180.99 176.33 0.04% BIIB 2025-12-26 08:01:50 178.02 175.21 0.00% BIIB 2025-12-26 09:01:29 176.50 175.21 0.00% BIIB 2025-12-26 11:01:21 176.30 176.13 -0.07% BIIB 2025-12-26 12:01:43 176.16 176.06 -0.14% BIIB 2025-12-26 13:02:06 176.02 175.94 -0.19% BIIB 2025-12-26 14:02:17 176.14 176.02 -0.11% BIIB 2025-12-26 15:01:46 176.16 176.04 -0.10% BIIB 2025-12-26 16:03:42 176.41 176.32 0.04% BIIB 2025-12-26 17:09:59 177.25 176.00 0.36% BIIB 2025-12-26 18:01:21 177.25 175.00 0.36% BIIB 2025-12-26 21:01:52 0.00 0.00 0.36% BIIB 2025-12-26 22:02:25 177.25 175.00 0.36% 2025-12-29 BIIB 2025-12-29 00:02:20 0.00 0.00 0.36% BIIB 2025-12-29 05:01:21 177.76 173.58 0.36% BIIB 2025-12-29 06:01:26 178.64 173.58 0.36% BIIB 2025-12-29 08:01:41 177.80 173.58 0.36% BIIB 2025-12-29 09:01:16 177.95 173.58 0.36% BIIB 2025-12-29 10:01:23 177.95 173.73 0.36% BIIB 2025-12-29 11:01:13 177.95 177.67 0.34% BIIB 2025-12-29 12:01:22 177.60 177.42 0.27% BIIB 2025-12-29 13:01:32 177.06 176.86 -0.07% BIIB 2025-12-29 14:02:29 177.06 176.90 -0.10% BIIB 2025-12-29 15:01:21 177.23 177.09 0.05% BIIB 2025-12-29 16:01:31 177.38 177.30 0.17% BIIB 2025-12-29 17:01:21 178.00 175.47 -0.15% BIIB 2025-12-29 19:01:24 178.00 175.19 -0.28% BIIB 2025-12-29 21:01:37 0.00 0.00 -0.28% 2025-12-30 BIIB 2025-12-30 05:01:14 343.00 173.58 -0.28% BIIB 2025-12-30 06:01:22 176.78 173.58 -0.28% BIIB 2025-12-30 07:01:19 177.28 173.58 -0.03% BIIB 2025-12-30 08:01:29 178.29 174.46 -0.03% BIIB 2025-12-30 09:01:20 178.11 175.16 -0.03% BIIB 2025-12-30 10:01:27 178.29 174.78 -0.03% BIIB 2025-12-30 11:01:17 176.54 176.30 -0.26% BIIB 2025-12-30 12:01:23 176.43 176.37 -0.22% BIIB 2025-12-30 13:01:15 176.12 175.94 -0.43% BIIB 2025-12-30 14:01:28 176.37 176.28 -0.29% BIIB 2025-12-30 15:01:18 176.74 176.61 -0.11% BIIB 2025-12-30 16:01:34 176.53 176.43 -0.20% BIIB 2025-12-30 17:01:18 177.00 174.72 -0.18% BIIB 2025-12-30 19:01:21 177.00 174.47 -0.18% BIIB 2025-12-30 21:01:30 0.00 0.00 -0.18% 2025-12-31 BIIB 2025-12-31 06:01:25 178.00 169.05 -0.18% BIIB 2025-12-31 08:01:31 177.40 174.46 -0.18% BIIB 2025-12-31 10:01:26 177.40 175.31 -0.55% BIIB 2025-12-31 11:01:14 176.07 175.94 -0.25% BIIB 2025-12-31 12:01:24 175.40 175.32 -0.57% BIIB 2025-12-31 13:01:17 176.19 176.12 -0.14% BIIB 2025-12-31 14:01:24 176.89 176.80 0.24% BIIB 2025-12-31 15:01:17 176.79 176.70 0.22% BIIB 2025-12-31 16:01:24 176.52 176.36 0.06% BIIB 2025-12-31 17:01:19 177.70 175.82 -0.23% BIIB 2025-12-31 18:01:27 175.73 159.53 -0.23% BIIB 2025-12-31 19:01:20 177.70 159.53 -0.79% BIIB 2025-12-31 21:01:50 0.00 0.00 -0.79% 2026-01-01 BIIB 2026-01-01 19:01:22 177.70 159.53 -0.79% BIIB 2026-01-01 22:02:23 0.00 0.00 -0.79% 2026-01-02 BIIB 2026-01-02 05:01:13 0.00 173.58 -0.79% BIIB 2026-01-02 06:01:26 178.00 173.58 -0.79% BIIB 2026-01-02 08:01:23 176.00 174.46 -0.79% BIIB 2026-01-02 10:01:23 176.00 175.36 -0.79% BIIB 2026-01-02 11:01:13 176.85 176.54 0.38% BIIB 2026-01-02 12:01:27 176.95 176.72 0.52% BIIB 2026-01-02 13:01:26 176.41 176.27 0.24% BIIB 2026-01-02 14:01:33 175.66 175.55 -0.24% BIIB 2026-01-02 15:01:21 176.16 176.05 0.06% BIIB 2026-01-02 16:01:29 177.45 177.34 0.79% BIIB 2026-01-02 17:01:21 178.50 176.00 1.04% BIIB 2026-01-02 18:01:35 178.50 176.00 1.14% BIIB 2026-01-02 20:01:34 178.50 177.70 1.14% BIIB 2026-01-02 21:02:02 0.00 0.00 1.07% 2026-01-05 BIIB 2026-01-05 06:01:29 190.50 174.08 -0.91% BIIB 2026-01-05 08:01:53 190.50 153.63 -0.74% BIIB 2026-01-05 09:01:21 192.42 168.50 -0.91% BIIB 2026-01-05 10:01:31 179.93 175.20 -0.91% BIIB 2026-01-05 11:01:19 175.90 175.58 -1.10% BIIB 2026-01-05 12:01:28 173.66 173.52 -2.36% BIIB 2026-01-05 13:01:26 173.65 173.45 -2.39% BIIB 2026-01-05 14:01:32 174.36 174.15 -1.97% BIIB 2026-01-05 15:01:22 174.19 173.97 -2.15% BIIB 2026-01-05 16:01:29 174.60 174.43 -1.88% BIIB 2026-01-05 17:01:21 178.04 172.22 -1.81% BIIB 2026-01-05 18:01:27 178.04 172.90 -1.79% BIIB 2026-01-05 19:01:29 178.04 172.90 -2.65% BIIB 2026-01-05 20:01:24 178.04 172.90 -1.78% 2026-01-06 BIIB 2026-01-06 05:01:26 180.88 174.94 0.48% BIIB 2026-01-06 06:01:31 180.88 172.53 0.48% BIIB 2026-01-06 07:01:19 180.88 168.01 0.48% BIIB 2026-01-06 08:01:31 175.45 172.56 0.48% BIIB 2026-01-06 10:01:28 175.45 174.26 0.48% BIIB 2026-01-06 11:01:16 180.50 180.17 3.23% BIIB 2026-01-06 12:01:22 180.51 180.36 3.31% BIIB 2026-01-06 13:01:14 180.41 180.21 3.17% BIIB 2026-01-06 14:01:26 180.31 180.14 3.20% BIIB 2026-01-06 15:01:16 180.73 180.52 3.41% BIIB 2026-01-06 16:01:28 181.60 181.47 3.89% BIIB 2026-01-06 17:01:17 183.00 180.00 4.62% BIIB 2026-01-06 18:01:33 182.50 180.00 4.51% BIIB 2026-01-06 19:01:19 182.50 182.00 4.51% BIIB 2026-01-06 20:01:32 184.00 182.00 4.80% BIIB 2026-01-06 21:01:37 0.00 0.00 4.80% 2026-01-07 BIIB 2026-01-07 06:01:26 182.37 157.78 4.80% BIIB 2026-01-07 07:01:25 186.50 172.00 4.80% BIIB 2026-01-07 08:01:23 186.50 178.27 -0.64% BIIB 2026-01-07 09:01:16 186.50 178.27 -0.35% BIIB 2026-01-07 10:01:24 185.00 172.00 -0.35% BIIB 2026-01-07 11:01:14 184.96 184.69 1.27% BIIB 2026-01-07 12:01:21 186.14 185.88 1.95% BIIB 2026-01-07 13:01:14 185.01 184.80 1.27% BIIB 2026-01-07 14:01:26 184.64 184.43 1.14% BIIB 2026-01-07 15:01:16 184.42 184.25 0.98% BIIB 2026-01-07 16:01:28 185.06 184.75 1.33% BIIB 2026-01-07 17:01:22 187.12 185.13 2.11% BIIB 2026-01-07 18:01:28 186.90 186.00 1.96% BIIB 2026-01-07 19:01:20 186.75 186.00 1.89% BIIB 2026-01-07 20:01:27 186.71 186.00 1.89% BIIB 2026-01-07 21:01:58 0.00 0.00 1.89% 2026-01-08 BIIB 2026-01-08 06:01:23 186.90 184.07 1.89% BIIB 2026-01-08 07:01:15 186.90 184.50 -0.09% BIIB 2026-01-08 08:01:46 186.99 184.53 0.00% BIIB 2026-01-08 09:01:14 187.00 185.21 -0.04% BIIB 2026-01-08 10:01:23 187.99 185.24 -0.49% BIIB 2026-01-08 11:01:15 185.50 185.14 -0.92% BIIB 2026-01-08 12:01:22 184.86 184.57 -1.25% BIIB 2026-01-08 13:01:17 185.70 185.48 -0.72% BIIB 2026-01-08 14:01:29 184.49 184.24 -1.42% BIIB 2026-01-08 15:01:20 184.62 184.48 -1.33% BIIB 2026-01-08 16:01:32 184.30 184.08 -1.48% BIIB 2026-01-08 17:01:20 186.80 186.18 -0.45% BIIB 2026-01-08 18:01:30 186.80 182.41 -0.21% BIIB 2026-01-08 19:01:28 187.66 182.41 -0.05% BIIB 2026-01-08 20:01:29 187.66 182.41 0.05% BIIB 2026-01-08 21:01:36 0.00 0.00 0.05% 2026-01-09 BIIB 2026-01-09 05:01:08 0.00 134.50 0.05% BIIB 2026-01-09 06:01:16 189.14 184.49 0.05% BIIB 2026-01-09 08:01:12 187.23 180.64 0.05% BIIB 2026-01-09 09:01:02 187.23 186.11 0.54% BIIB 2026-01-09 10:01:12 190.00 186.12 0.09% BIIB 2026-01-09 11:00:59 189.50 189.10 1.69% BIIB 2026-01-09 12:01:12 187.40 187.13 0.66% BIIB 2026-01-09 13:01:08 188.87 188.63 1.52% BIIB 2026-01-09 14:01:14 188.40 188.25 1.24% BIIB 2026-01-09 15:01:06 188.44 188.29 1.27% BIIB 2026-01-09 16:01:15 187.66 187.45 0.79% BIIB 2026-01-09 17:01:03 188.00 187.40 0.86% BIIB 2026-01-09 19:01:09 189.00 187.40 1.61% BIIB 2026-01-09 21:01:25 0.00 0.00 1.61% 2026-01-12 BIIB 2026-01-12 05:01:20 0.00 165.00 1.61% BIIB 2026-01-12 06:01:14 192.38 165.00 1.61% BIIB 2026-01-12 07:01:01 192.38 184.15 1.61% BIIB 2026-01-12 08:01:15 188.65 187.14 1.61% BIIB 2026-01-12 09:01:04 190.49 187.14 -0.13% BIIB 2026-01-12 10:01:14 188.57 184.15 -0.11% BIIB 2026-01-12 11:01:10 185.02 184.69 -1.52% BIIB 2026-01-12 12:01:15 184.09 183.87 -1.91% BIIB 2026-01-12 13:01:05 184.80 184.61 -1.59% BIIB 2026-01-12 14:01:13 184.84 184.65 -1.56% BIIB 2026-01-12 15:01:12 184.35 184.12 -1.79% BIIB 2026-01-12 16:01:22 185.06 184.88 -1.43% BIIB 2026-01-12 17:01:08 185.63 183.00 -1.07% BIIB 2026-01-12 18:01:23 185.63 182.03 -1.06% BIIB 2026-01-12 19:01:13 185.63 182.03 -1.24% BIIB 2026-01-12 20:01:17 185.77 182.03 -1.24% BIIB 2026-01-12 20:45:58 Biogen Inc. (BIIB) Presents at 44th Annual J.P. Morgan Healthcare Conference Transcript BIIB 2026-01-12 21:01:35 0.00 0.00 -1.24% BIIB 2026-01-12 23:01:04 44th Annual J.P. Morgan Healthcare Conference 2026-01-13 BIIB 2026-01-13 05:01:08 202.95 0.00 -1.24% BIIB 2026-01-13 06:01:19 202.95 160.34 -1.24% BIIB 2026-01-13 07:01:09 190.98 160.34 -1.24% BIIB 2026-01-13 08:01:15 189.99 185.65 0.12% BIIB 2026-01-13 09:01:10 186.86 184.00 0.00% BIIB 2026-01-13 10:01:12 186.86 185.16 -0.02% BIIB 2026-01-13 11:01:03 183.64 183.33 -1.20% BIIB 2026-01-13 12:01:14 183.63 183.49 -1.07% BIIB 2026-01-13 13:01:08 182.40 182.19 -1.80% BIIB 2026-01-13 14:01:20 180.92 180.73 -2.60% BIIB 2026-01-13 15:01:11 180.33 180.24 -2.84% BIIB 2026-01-13 16:01:20 179.19 179.03 -3.47% BIIB 2026-01-13 17:01:12 178.42 177.22 -3.90% BIIB 2026-01-13 18:01:20 186.00 178.30 -4.02% BIIB 2026-01-13 18:38:54 8-K Sec report https://www.sec.gov/Archives/edgar/data/875045/000087504526000003/0000875045-26-000003-index.htm 8-K - BIOGEN INC. (0000875045) (Filer) BIIB 2026-01-13 19:01:15 186.00 178.00 -3.94% BIIB 2026-01-13 20:01:20 186.00 177.22 -4.10% BIIB 2026-01-13 21:01:25 0.00 0.00 -0.23% 2026-01-14 BIIB 2026-01-14 05:01:12 179.55 176.91 -0.23% BIIB 2026-01-14 06:01:16 179.66 159.50 -0.23% BIIB 2026-01-14 07:01:08 178.00 158.21 -0.23% BIIB 2026-01-14 08:01:13 178.00 172.00 -0.16% BIIB 2026-01-14 11:00:59 167.66 167.19 -5.77% BIIB 2026-01-14 12:01:12 170.21 169.84 -4.49% BIIB 2026-01-14 13:01:03 170.05 169.74 -4.54% BIIB 2026-01-14 14:01:15 170.61 170.35 -4.20% BIIB 2026-01-14 15:01:02 168.98 168.74 -5.12% BIIB 2026-01-14 16:01:16 170.59 170.40 -4.16% BIIB 2026-01-14 17:01:04 171.60 168.00 -4.76% BIIB 2026-01-14 18:01:33 172.61 168.00 -5.22% BIIB 2026-01-14 22:02:03 0.00 0.00 -5.22% 2026-01-15 BIIB 2026-01-15 05:01:02 171.54 0.00 -5.22% BIIB 2026-01-15 06:01:15 171.80 171.44 1.23% BIIB 2026-01-15 07:01:06 171.03 163.13 1.23% BIIB 2026-01-15 08:01:21 170.81 163.13 0.48% BIIB 2026-01-15 09:01:09 173.30 166.00 0.48% BIIB 2026-01-15 10:01:20 172.00 168.96 0.48% BIIB 2026-01-15 11:01:06 168.24 167.83 -0.67% BIIB 2026-01-15 12:01:17 167.51 167.21 -1.12% BIIB 2026-01-15 13:01:07 167.95 167.77 -0.84% BIIB 2026-01-15 14:01:20 168.71 168.63 -0.35% BIIB 2026-01-15 15:01:08 168.60 168.41 -0.49% BIIB 2026-01-15 16:01:22 168.84 168.70 -0.29% BIIB 2026-01-15 17:01:12 169.06 168.00 -0.42% BIIB 2026-01-15 18:01:19 169.63 168.00 -0.44% BIIB 2026-01-15 20:01:12 169.63 168.00 -0.46% BIIB 2026-01-15 22:02:27 0.00 0.00 -0.46% 2026-01-16 BIIB 2026-01-16 05:01:12 343.00 164.89 -0.46% BIIB 2026-01-16 06:01:20 174.05 166.51 -0.46% BIIB 2026-01-16 07:01:14 174.05 168.11 -0.46% BIIB 2026-01-16 08:01:25 169.59 167.98 -0.31% BIIB 2026-01-16 09:01:06 169.31 167.01 -0.28% BIIB 2026-01-16 10:01:16 169.00 167.01 -0.28% BIIB 2026-01-16 11:01:03 167.08 166.69 -0.92% BIIB 2026-01-16 12:01:14 165.30 165.06 -2.07% BIIB 2026-01-16 13:01:05 164.88 164.73 -2.23% BIIB 2026-01-16 14:01:20 165.08 164.98 -2.08% BIIB 2026-01-16 15:01:15 164.79 164.66 -2.27% BIIB 2026-01-16 16:01:21 164.90 164.74 -2.26% BIIB 2026-01-16 17:01:08 165.46 164.10 -2.45% BIIB 2026-01-16 18:01:19 165.46 164.52 -2.34% BIIB 2026-01-16 19:01:15 167.75 164.52 -2.34% BIIB 2026-01-16 20:01:22 167.75 165.00 -2.34% BIIB 2026-01-16 21:01:39 0.00 0.00 -2.34% 2026-01-20 BIIB 2026-01-20 05:01:12 260.60 150.00 -2.34% BIIB 2026-01-20 06:01:23 163.62 160.27 -0.63% BIIB 2026-01-20 07:01:05 163.68 160.27 -0.55% BIIB 2026-01-20 08:01:19 164.35 161.75 -0.55% BIIB 2026-01-20 09:01:08 170.00 161.75 -0.55% BIIB 2026-01-20 10:01:19 164.37 161.75 -0.77% BIIB 2026-01-20 11:01:07 162.70 162.33 -1.06% BIIB 2026-01-20 12:01:16 164.40 164.18 -0.12% BIIB 2026-01-20 13:01:11 164.77 164.56 0.11% BIIB 2026-01-20 14:01:24 164.70 164.56 0.15% BIIB 2026-01-20 15:01:15 164.46 164.32 -0.05% BIIB 2026-01-20 16:01:24 164.73 164.54 0.09% BIIB 2026-01-20 17:01:20 165.35 163.00 0.58% BIIB 2026-01-20 18:01:23 165.31 163.00 0.43% BIIB 2026-01-20 20:01:25 165.31 165.00 0.53% BIIB 2026-01-20 21:01:28 0.00 0.00 0.43% 2026-01-21 BIIB 2026-01-21 05:01:16 262.55 156.00 0.43% BIIB 2026-01-21 06:01:25 168.24 164.53 0.43% BIIB 2026-01-21 08:01:20 165.06 163.33 -0.21% BIIB 2026-01-21 09:01:08 165.79 163.33 -0.61% BIIB 2026-01-21 10:01:18 166.41 164.02 -0.21% BIIB 2026-01-21 11:01:07 169.20 168.89 2.26% BIIB 2026-01-21 12:01:15 171.01 170.75 3.29% BIIB 2026-01-21 14:01:36 170.70 170.48 3.15% BIIB 2026-01-21 15:01:11 170.82 170.69 3.27% BIIB 2026-01-21 16:01:25 172.28 172.15 4.20% BIIB 2026-01-21 17:01:13 172.45 171.49 4.31% BIIB 2026-01-21 18:01:22 173.00 170.54 4.46% BIIB 2026-01-21 19:01:17 173.00 172.60 4.46% BIIB 2026-01-21 20:01:25 173.20 172.60 4.37% BIIB 2026-01-21 21:01:40 0.00 0.00 4.37% 2026-01-22 BIIB 2026-01-22 05:01:10 218.00 171.39 4.37%