Biogen Inc. (BIIB)
NASDAQ: BIIB · Real-Time Price · USD
199.71
+3.13 (1.59%)
At close: Jun 22, 2026, 4:00 PM EDT
199.76
+0.05 (0.02%)
After-hours: Jun 22, 2026, 7:57 PM EDT
Biogen Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Jun 22, 2026 | 199.48 | 200.98 | 194.74 | 199.71 | 199.71 | 1.59% | 1,668,987 |
| Jun 18, 2026 | 200.22 | 200.99 | 193.20 | 196.58 | 196.58 | -1.05% | 1,723,453 |
| Jun 17, 2026 | 195.14 | 201.75 | 194.04 | 198.67 | 198.67 | 1.56% | 1,001,746 |
| Jun 16, 2026 | 199.69 | 200.26 | 194.04 | 195.61 | 195.61 | -1.53% | 906,697 |
| Jun 15, 2026 | 198.37 | 199.37 | 195.89 | 198.64 | 198.64 | -0.70% | 883,963 |
| Jun 12, 2026 | 200.57 | 203.45 | 199.06 | 200.05 | 200.05 | 0.05% | 837,294 |
| Jun 11, 2026 | 195.49 | 201.18 | 194.24 | 199.96 | 199.96 | 2.94% | 914,781 |
| Jun 10, 2026 | 200.21 | 201.94 | 194.10 | 194.24 | 194.24 | -2.44% | 1,071,228 |
| Jun 9, 2026 | 195.51 | 199.63 | 193.45 | 199.10 | 199.10 | 3.36% | 934,191 |
| Jun 8, 2026 | 197.25 | 198.70 | 192.18 | 192.62 | 192.62 | -1.39% | 1,162,350 |
| Jun 5, 2026 | 196.45 | 200.66 | 195.14 | 195.34 | 195.34 | -0.57% | 880,438 |
| Jun 4, 2026 | 198.00 | 199.90 | 196.35 | 196.45 | 196.45 | 0.25% | 719,127 |
| Jun 3, 2026 | 187.69 | 196.51 | 187.48 | 195.96 | 195.96 | 3.78% | 891,787 |
| Jun 2, 2026 | 190.09 | 190.58 | 184.90 | 188.83 | 188.83 | -1.77% | 1,098,098 |
| Jun 1, 2026 | 194.50 | 195.28 | 191.67 | 192.23 | 192.23 | -1.92% | 841,499 |
| May 29, 2026 | 195.55 | 198.46 | 195.11 | 196.00 | 196.00 | -0.20% | 1,905,488 |
| May 28, 2026 | 196.97 | 198.00 | 194.50 | 196.39 | 196.39 | -0.29% | 556,331 |
| May 27, 2026 | 194.11 | 199.80 | 194.11 | 196.97 | 196.97 | 2.01% | 893,048 |
| May 26, 2026 | 194.30 | 195.50 | 192.27 | 193.08 | 193.08 | -0.35% | 930,212 |
| May 22, 2026 | 190.53 | 194.75 | 190.01 | 193.76 | 193.76 | 2.26% | 892,933 |
| May 21, 2026 | 187.40 | 190.27 | 185.85 | 189.47 | 189.47 | 0.89% | 1,475,348 |
| May 20, 2026 | 191.41 | 193.38 | 186.37 | 187.80 | 187.80 | -1.45% | 919,894 |
| May 19, 2026 | 191.72 | 193.03 | 188.64 | 190.56 | 190.56 | -0.70% | 1,054,138 |
| May 18, 2026 | 191.25 | 193.37 | 189.19 | 191.91 | 191.91 | -0.54% | 1,051,356 |
| May 15, 2026 | 191.83 | 194.91 | 190.66 | 192.95 | 192.95 | 0.83% | 1,252,270 |
| May 14, 2026 | 200.25 | 205.00 | 189.49 | 191.37 | 191.37 | -6.43% | 2,812,933 |
| May 13, 2026 | 199.33 | 205.97 | 198.86 | 204.53 | 204.53 | 2.59% | 1,272,026 |
| May 12, 2026 | 198.47 | 202.40 | 196.47 | 199.36 | 199.36 | 0.71% | 1,145,749 |
| May 11, 2026 | 194.76 | 200.31 | 194.75 | 197.95 | 197.95 | 2.33% | 1,772,229 |
| May 8, 2026 | 189.68 | 195.20 | 189.50 | 193.45 | 193.45 | 1.08% | 931,578 |
| May 7, 2026 | 190.34 | 192.10 | 188.86 | 191.38 | 191.38 | 0.37% | 735,692 |
| May 6, 2026 | 189.13 | 191.17 | 188.30 | 190.68 | 190.68 | 0.82% | 741,346 |
| May 5, 2026 | 187.38 | 189.69 | 186.00 | 189.13 | 189.13 | 1.03% | 586,074 |
| May 4, 2026 | 186.28 | 187.51 | 185.44 | 187.21 | 187.21 | 0.08% | 626,559 |
| May 1, 2026 | 189.28 | 190.57 | 186.14 | 187.06 | 187.06 | -1.17% | 696,812 |
| Apr 30, 2026 | 194.02 | 195.98 | 187.16 | 189.28 | 189.28 | -2.62% | 1,550,523 |
| Apr 29, 2026 | 183.12 | 195.89 | 180.18 | 194.38 | 194.38 | 6.00% | 2,453,836 |
| Apr 28, 2026 | 182.45 | 184.41 | 181.89 | 183.38 | 183.38 | 1.50% | 1,235,813 |
| Apr 27, 2026 | 183.16 | 186.15 | 179.15 | 180.67 | 180.67 | -2.01% | 1,101,370 |
| Apr 24, 2026 | 186.65 | 186.65 | 183.17 | 184.38 | 184.38 | -1.86% | 723,366 |
| Apr 23, 2026 | 189.46 | 190.32 | 187.01 | 187.88 | 187.88 | -1.15% | 816,281 |
| Apr 22, 2026 | 189.31 | 192.75 | 188.67 | 190.07 | 190.07 | 2.22% | 1,328,297 |
| Apr 21, 2026 | 184.52 | 187.74 | 181.75 | 185.95 | 185.95 | 1.42% | 1,063,303 |
| Apr 20, 2026 | 179.54 | 184.26 | 178.72 | 183.34 | 183.34 | 3.38% | 1,484,371 |
| Apr 17, 2026 | 176.29 | 178.41 | 175.69 | 177.35 | 177.35 | 0.76% | 1,239,458 |
| Apr 16, 2026 | 178.82 | 179.99 | 174.85 | 176.02 | 176.02 | -2.50% | 953,722 |
| Apr 15, 2026 | 179.36 | 180.87 | 177.70 | 180.54 | 180.54 | 0.88% | 1,168,801 |
| Apr 14, 2026 | 177.71 | 181.77 | 177.45 | 178.96 | 178.96 | 1.47% | 1,550,580 |
| Apr 13, 2026 | 172.62 | 176.79 | 171.22 | 176.37 | 176.37 | 1.96% | 1,414,958 |
| Apr 10, 2026 | 177.97 | 177.97 | 172.32 | 172.97 | 172.97 | -2.34% | 1,501,979 |