Biogen Inc. (BIIB)
NASDAQ: BIIB
· Real-Time Price · USD
140.67
0.73 (0.52%)
At close: Sep 05, 2025, 3:59 PM
140.35
-0.23%
After-hours: Sep 05, 2025, 07:39 PM EDT
BIIB Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj Close | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 5, 2025 | 140.13 | 144.20 | 139.96 | 140.67 | 140.67 | 0.52% | 1,561,753 |
| Sep 4, 2025 | 141.78 | 142.28 | 137.14 | 139.94 | 139.94 | -1.19% | 1,529,091 |
| Sep 3, 2025 | 139.56 | 145.27 | 139.56 | 141.62 | 141.62 | 1.43% | 2,279,528 |
| Sep 2, 2025 | 133.55 | 140.06 | 133.53 | 139.63 | 139.63 | 5.60% | 2,466,935 |
| Aug 29, 2025 | 132.50 | 133.48 | 131.52 | 132.22 | 132.22 | -0.32% | 1,083,013 |
| Aug 28, 2025 | 136.36 | 136.36 | 132.04 | 132.65 | 132.65 | -2.72% | 1,558,097 |
| Aug 27, 2025 | 136.00 | 138.50 | 135.79 | 136.36 | 136.36 | -0.26% | 1,403,137 |
| Aug 26, 2025 | 135.85 | 136.91 | 135.22 | 136.72 | 136.72 | 0.26% | 1,580,037 |
| Aug 25, 2025 | 139.01 | 139.75 | 136.14 | 136.36 | 136.36 | -2.12% | 861,976 |
| Aug 22, 2025 | 140.41 | 142.32 | 138.65 | 139.31 | 139.31 | 0.14% | 1,199,214 |
| Aug 21, 2025 | 138.26 | 140.20 | 137.59 | 139.12 | 139.12 | 0.09% | 1,074,281 |
| Aug 20, 2025 | 139.10 | 140.50 | 137.77 | 138.99 | 138.99 | 0.09% | 1,286,658 |
| Aug 19, 2025 | 136.37 | 139.58 | 136.02 | 138.86 | 138.86 | 2.17% | 1,447,803 |
| Aug 18, 2025 | 140.00 | 141.18 | 135.74 | 135.91 | 135.91 | -1.94% | 1,813,900 |
| Aug 15, 2025 | 136.16 | 138.83 | 135.88 | 138.60 | 138.60 | 2.71% | 1,644,116 |
| Aug 14, 2025 | 134.51 | 135.23 | 132.16 | 134.94 | 134.94 | -0.18% | 1,169,840 |
| Aug 13, 2025 | 129.62 | 135.38 | 129.40 | 135.19 | 135.19 | 4.86% | 1,549,212 |
| Aug 12, 2025 | 128.47 | 131.10 | 128.25 | 128.93 | 128.93 | 0.73% | 1,127,617 |
| Aug 11, 2025 | 131.16 | 133.73 | 127.71 | 128.00 | 128.00 | -2.04% | 1,070,300 |
| Aug 8, 2025 | 127.50 | 131.26 | 127.00 | 130.67 | 130.67 | 2.29% | 1,327,710 |