Biogen Inc. (BIIB)
140.88
-0.50 (-0.35%)
At close: Mar 21, 2025, 3:59 PM
140.90
0.01%
After-hours: Mar 21, 2025, 04:56 PM EDT
BIIB Stock Price History
| Date | Open | High | Low | Close | Change | % Change | Volume |
|---|---|---|---|---|---|---|---|
| Mar 20, 2025 | 141.14 | 142.95 | 140.91 | 141.38 | -0.05 | -0.04% | 958,619 |
| Mar 19, 2025 | 143.09 | 144.25 | 140.73 | 141.43 | -1.66 | -1.16% | 1,180,604 |
| Mar 18, 2025 | 143.17 | 145.97 | 142.90 | 143.09 | -0.45 | -0.31% | 1,506,939 |
| Mar 17, 2025 | 140.05 | 143.85 | 139.16 | 143.54 | 4.10 | 2.94% | 1,249,039 |
| Mar 14, 2025 | 139.66 | 140.80 | 138.63 | 139.44 | -0.54 | -0.39% | 1,436,835 |
| Mar 13, 2025 | 140.36 | 143.50 | 139.05 | 139.98 | -0.21 | -0.15% | 1,301,257 |
| Mar 12, 2025 | 142.01 | 143.13 | 140.02 | 140.19 | -3.47 | -2.42% | 2,438,110 |
| Mar 11, 2025 | 151.13 | 151.89 | 142.02 | 143.66 | -7.05 | -4.68% | 1,857,241 |
| Mar 10, 2025 | 150.29 | 157.09 | 150.14 | 150.71 | 0.33 | 0.22% | 2,651,495 |
| Mar 7, 2025 | 147.42 | 154.29 | 146.63 | 150.38 | 3.01 | 2.04% | 2,925,500 |
| Mar 6, 2025 | 143.65 | 147.65 | 142.23 | 147.37 | 3.60 | 2.50% | 1,145,230 |
| Mar 5, 2025 | 142.85 | 144.74 | 141.93 | 143.77 | 1.12 | 0.79% | 1,185,029 |
| Mar 4, 2025 | 143.41 | 148.00 | 141.52 | 142.65 | 0.94 | 0.66% | 2,790,700 |
| Mar 3, 2025 | 140.41 | 142.56 | 140.07 | 141.71 | 1.21 | 0.86% | 1,617,100 |
| Feb 28, 2025 | 141.06 | 141.90 | 138.38 | 140.50 | 0.62 | 0.44% | 2,324,350 |
| Feb 27, 2025 | 140.06 | 142.96 | 139.59 | 139.88 | -0.61 | -0.43% | 1,215,901 |
| Feb 26, 2025 | 143.09 | 143.09 | 139.04 | 140.49 | -2.97 | -2.07% | 1,310,596 |
| Feb 25, 2025 | 140.00 | 145.69 | 139.94 | 143.46 | 2.19 | 1.55% | 1,580,701 |
| Feb 24, 2025 | 141.28 | 144.17 | 139.35 | 141.27 | 0.63 | 0.45% | 1,565,517 |
| Feb 21, 2025 | 138.00 | 141.50 | 137.56 | 140.64 | 3.56 | 2.60% | 1,814,000 |
| Feb 20, 2025 | 137.19 | 138.94 | 136.52 | 137.08 | 0.40 | 0.29% | 2,056,934 |
| Feb 19, 2025 | 135.95 | 137.79 | 135.02 | 136.68 | 0.11 | 0.08% | 1,548,482 |
| Feb 18, 2025 | 138.14 | 139.16 | 135.94 | 136.57 | -0.76 | -0.55% | 1,327,600 |
| Feb 14, 2025 | 140.14 | 141.69 | 136.05 | 137.33 | -1.12 | -0.81% | 1,692,200 |
| Feb 13, 2025 | 132.15 | 139.10 | 132.15 | 138.45 | 5.02 | 3.76% | 2,257,400 |
| Feb 12, 2025 | 136.76 | 137.79 | 128.51 | 133.43 | -5.96 | -4.28% | 3,538,208 |
| Feb 11, 2025 | 140.66 | 141.56 | 138.72 | 139.39 | -3.15 | -2.21% | 1,910,100 |
| Feb 10, 2025 | 141.63 | 142.68 | 140.06 | 142.54 | 1.19 | 0.84% | 1,523,744 |
| Feb 7, 2025 | 141.84 | 143.69 | 140.75 | 141.35 | -1.02 | -0.72% | 1,154,178 |
| Feb 6, 2025 | 145.18 | 145.98 | 141.69 | 142.37 | -3.16 | -2.17% | 1,329,576 |
| Feb 5, 2025 | 142.90 | 147.00 | 142.64 | 145.53 | 3.04 | 2.13% | 1,173,708 |
| Feb 4, 2025 | 141.08 | 143.98 | 141.07 | 142.49 | 0.15 | 0.11% | 1,055,807 |
| Feb 3, 2025 | 142.81 | 144.50 | 141.64 | 142.34 | -1.59 | -1.10% | 1,110,600 |
| Jan 31, 2025 | 145.20 | 147.40 | 143.63 | 143.93 | -2.30 | -1.57% | 1,402,243 |
| Jan 30, 2025 | 145.84 | 147.64 | 145.24 | 146.23 | 1.82 | 1.26% | 1,110,910 |
| Jan 29, 2025 | 145.10 | 147.38 | 143.34 | 144.41 | -1.08 | -0.74% | 1,484,400 |
| Jan 28, 2025 | 148.29 | 148.55 | 145.08 | 145.49 | -3.27 | -2.20% | 1,301,853 |
| Jan 27, 2025 | 146.55 | 149.67 | 146.55 | 148.76 | 2.56 | 1.75% | 1,662,700 |
| Jan 24, 2025 | 143.45 | 146.33 | 141.98 | 146.20 | 2.53 | 1.76% | 1,303,128 |
| Jan 23, 2025 | 143.14 | 143.77 | 139.83 | 143.67 | 0.92 | 0.64% | 1,466,135 |
| Jan 22, 2025 | 140.75 | 143.15 | 139.71 | 142.75 | 1.77 | 1.26% | 1,083,104 |
| Jan 21, 2025 | 141.00 | 142.09 | 140.59 | 140.98 | 0.43 | 0.31% | 1,183,500 |
| Jan 17, 2025 | 143.13 | 143.50 | 140.06 | 140.55 | -0.68 | -0.48% | 1,150,005 |
| Jan 16, 2025 | 140.49 | 142.39 | 140.05 | 141.23 | 0.23 | 0.16% | 1,198,803 |
| Jan 15, 2025 | 145.46 | 146.15 | 140.87 | 141.00 | -2.06 | -1.44% | 1,557,600 |
| Jan 14, 2025 | 149.92 | 150.22 | 142.42 | 143.06 | -7.12 | -4.74% | 1,710,000 |
| Jan 13, 2025 | 148.92 | 150.48 | 145.82 | 150.18 | 1.36 | 0.91% | 1,142,917 |
| Jan 10, 2025 | 149.18 | 150.20 | 147.65 | 148.82 | -1.93 | -1.28% | 1,256,392 |
| Jan 8, 2025 | 152.27 | 152.82 | 150.07 | 150.75 | -2.40 | -1.57% | 1,038,787 |
| Jan 7, 2025 | 153.11 | 156.37 | 152.90 | 153.15 | -0.12 | -0.08% | 1,110,443 |