Biogen Stock Price History
NASDAQ: BIIBHealth CareBiotechnology: Biological Products (No Diagnostic Substances)USD
225.71+7.28 (+3.33%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
BIIB price history at a glance
The price history for Biogen (BIIB) on this page begins on September 16, 1991, when the stock closed at $3.08; it most recently closed at $225.71 on October 5, 2026. The highest price in this record is $480.18, reached on March 16, 2015; the latest close is 53.0% below that peak. Across the 34 complete calendar years in the table, BIIB finished higher in 20 and lower in 14. Its best year was 1995 (+817.6%) and its worst was 1994 (-63.0%).
Over roughly 35 years the share price changed +7220.4%, a 13.0% compound annual price return (excluding dividends). In the last 12 months alone, BIIB has gained 54.0%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1991
- $480.18
- Date of high
- Mar 16, 2015
- Low since 1991
- $0.3542
- Date of low
- Dec 12, 1994
- 52-week high
- $230.49
- 52-week low
- $138.00
- Last close
- $225.71
BIIB returns
1 week
+2.65%
1 month
+7.11%
3 months
+13.34%
6 months
+30.49%
Year to date
+28.25%
1 year
+53.99%
3 years
-13.94%
5 years
-19.73%
BIIB price return, excluding dividends.
BIIB annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 225.71 | +26.93% |
| 2025 | 177.82 | +16.83% |
| 2024 | 152.21 | -41.18% |
| 2023 | 258.77 | -6.55% |
| 2022 | 276.92 | +15.42% |
| 2021 | 239.92 | -2.02% |
| 2020 | 244.86 | -15.81% |
| 2019 | 290.85 | -8.63% |
| 2018 | 318.33 | -0.08% |
| 2017 | 318.57 | +12.34% |
| 2016 | 283.58 | -7.43% |
| 2015 | 306.35 | -10.43% |
| 2014 | 342.01 | +23.29% |
| 2013 | 277.40 | +90.09% |
| 2012 | 145.93 | +32.60% |
| 2011 | 110.05 | +64.13% |
| 2010 | 67.05 | +25.33% |
| 2009 | 53.50 | +10.33% |
| 2008 | 48.49 | -12.19% |
| 2007 | 55.22 | +12.26% |
| 2006 | 49.19 | +8.64% |
| 2005 | 45.28 | -32.02% |
| 2004 | 66.61 | +80.32% |
| 2003 | 36.94 | +9.65% |
| 2002 | 33.69 | -47.99% |
| 2001 | 64.77 | +2.50% |
| 2000 | 63.19 | +92.94% |
| 1999 | 32.75 | +318.09% |
| 1998 | 7.83 | +38.75% |
| 1997 | 5.65 | +56.65% |
| 1996 | 3.60 | +10.90% |
| 1995 | 3.25 | +817.56% |
| 1994 | 0.3542 | -63.04% |
| 1993 | 0.9583 | -34.29% |
| 1992 | 1.46 | -36.94% |
| 1991* | 2.31 | -25.00% |
* Partial year: the record begins after the start of 1991; return measured from the first available close.
2026 return is year to date.
BIIB daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 220.62 | 227.20 | 219.23 | 225.71 | +3.33% | |
| 220.30 | 223.09 | 215.73 | 218.43 | -1.67% | |
| 222.93 | 228.00 | 221.40 | 222.15 | -0.33% | |
| 224.53 | 225.97 | 218.00 | 222.89 | -0.31% | |
| 219.90 | 223.85 | 218.22 | 223.59 | +1.69% | |
| 222.98 | 224.08 | 219.81 | 219.88 | -1.32% | |
| 225.50 | 228.31 | 222.50 | 222.82 | -1.35% | |
| 227.23 | 229.36 | 225.51 | 225.88 | -0.52% | |
| 227.02 | 229.41 | 224.45 | 227.07 | -0.71% | |
| 225.87 | 230.49 | 225.51 | 228.69 | +0.48% | |
| 228.27 | 228.92 | 223.76 | 227.60 | +0.55% | |
| 226.80 | 228.72 | 224.31 | 226.36 | -0.51% | |
| 226.94 | 229.19 | 222.36 | 227.53 | +0.96% | |
| 219.22 | 226.43 | 219.00 | 225.36 | +2.87% | |
| 216.14 | 221.92 | 214.59 | 219.07 | +1.66% | |
| 219.05 | 220.17 | 215.26 | 215.50 | -1.62% | |
| 217.68 | 219.41 | 215.33 | 219.05 | +1.41% | |
| 216.41 | 218.29 | 214.81 | 216.01 | -0.07% | |
| 216.71 | 216.71 | 213.54 | 216.17 | -0.55% | |
| 221.00 | 222.25 | 215.56 | 217.36 | +0.10% | |
| 216.75 | 219.76 | 214.71 | 217.15 | +0.80% | |
| 209.92 | 216.70 | 208.93 | 215.43 | +2.23% | |
| 210.50 | 213.48 | 209.00 | 210.73 | -0.83% | |
| 215.45 | 217.28 | 210.54 | 212.50 | -3.77% | |
| 221.15 | 223.82 | 219.82 | 220.83 | -1.64% | |
| 225.44 | 225.80 | 221.23 | 224.51 | +0.83% | |
| 218.20 | 225.59 | 216.97 | 222.67 | +3.07% | |
| 218.11 | 219.30 | 213.60 | 216.04 | -0.28% | |
| 216.47 | 218.89 | 213.58 | 216.65 | -0.85% | |
| 221.17 | 222.00 | 216.78 | 218.50 | -1.35% | |
| 219.39 | 222.11 | 217.53 | 221.50 | +0.19% | |
| 219.34 | 222.00 | 218.69 | 221.07 | +0.14% | |
| 218.93 | 222.85 | 218.00 | 220.77 | +1.21% | |
| 216.40 | 218.50 | 213.96 | 218.12 | +0.62% | |
| 217.76 | 219.12 | 215.00 | 216.78 | +1.13% | |
| 217.98 | 221.29 | 214.16 | 214.35 | -3.25% | |
| 215.33 | 222.15 | 215.08 | 221.56 | +4.24% | |
| 211.00 | 214.07 | 210.01 | 212.55 | +1.63% | |
| 208.36 | 210.49 | 207.62 | 209.15 | -0.32% | |
| 210.01 | 210.79 | 208.22 | 209.83 | -0.39% | |
| 212.98 | 215.61 | 208.79 | 210.65 | +0.85% | |
| 203.52 | 209.22 | 201.00 | 208.87 | +2.44% | |
| 206.63 | 207.57 | 203.53 | 203.89 | -1.56% | |
| 206.70 | 210.02 | 206.29 | 207.13 | -0.39% | |
| 207.38 | 208.31 | 204.16 | 207.94 | +0.80% | |
| 208.75 | 209.03 | 202.03 | 206.28 | -0.17% | |
| 210.60 | 212.18 | 205.80 | 206.63 | -0.87% | |
| 200.96 | 209.74 | 199.93 | 208.45 | +3.29% | |
| 203.34 | 203.85 | 199.58 | 201.82 | -0.56% | |
| 207.51 | 208.05 | 202.57 | 202.95 | -2.40% | |
| 204.38 | 210.19 | 203.09 | 207.93 | -0.62% | |
| 210.50 | 218.59 | 206.27 | 209.23 | +1.76% | |
| 201.01 | 207.72 | 199.40 | 205.61 | +2.73% | |
| 202.75 | 204.47 | 199.83 | 200.14 | -1.01% | |
| 202.24 | 203.30 | 200.04 | 202.19 | +0.78% | |
| 197.04 | 203.60 | 196.92 | 200.62 | +1.46% | |
| 203.70 | 204.31 | 197.40 | 197.74 | -2.67% | |
| 199.47 | 203.70 | 198.59 | 203.16 | +1.61% | |
| 204.08 | 205.65 | 199.62 | 199.95 | -2.93% | |
| 208.60 | 215.79 | 203.40 | 205.99 | -1.40% | |
| 198.26 | 209.64 | 194.67 | 208.92 | +5.92% | |
| 191.21 | 198.58 | 186.03 | 197.24 | +2.76% | |
| 200.34 | 202.00 | 189.40 | 191.95 | -8.17% | |
| 199.33 | 210.87 | 197.74 | 209.03 | +4.96% | |
| 197.63 | 199.98 | 194.37 | 199.15 | +0.12% | |
| 198.92 | 201.01 | 196.00 | 198.91 | -0.72% | |
| 204.86 | 206.75 | 198.93 | 200.36 | -2.60% | |
| 211.86 | 212.00 | 205.65 | 205.70 | -1.32% | |
| 215.95 | 215.95 | 208.27 | 208.46 | -3.54% | |
| 212.74 | 219.02 | 210.75 | 216.12 | +3.04% | |
| 215.25 | 215.81 | 209.67 | 209.74 | -2.93% | |
| 218.00 | 218.00 | 212.58 | 216.06 | -0.26% | |
| 215.74 | 219.72 | 214.08 | 216.63 | +0.28% | |
| 202.53 | 218.06 | 202.29 | 216.03 | +6.97% | |
| 201.63 | 206.67 | 200.20 | 201.96 | +1.19% | |
| 199.34 | 202.06 | 198.66 | 199.59 | +1.22% | |
| 198.88 | 201.22 | 197.01 | 197.19 | -1.26% | |
| 199.48 | 200.98 | 194.74 | 199.71 | +1.59% | |
| 200.22 | 200.99 | 193.20 | 196.58 | -1.05% | |
| 195.14 | 201.75 | 194.04 | 198.67 | +1.56% | |
| 199.69 | 200.26 | 194.04 | 195.61 | -1.53% | |
| 198.37 | 199.37 | 195.89 | 198.64 | -0.70% | |
| 200.57 | 203.45 | 199.06 | 200.05 | +0.05% | |
| 195.49 | 201.18 | 194.24 | 199.96 | +2.94% | |
| 200.21 | 201.94 | 194.10 | 194.24 | -2.44% | |
| 195.51 | 199.63 | 193.45 | 199.10 | +3.36% | |
| 197.25 | 198.70 | 192.18 | 192.62 | -1.39% | |
| 196.45 | 200.66 | 195.14 | 195.34 | -0.57% | |
| 198.00 | 199.90 | 196.35 | 196.45 | +0.25% | |
| 187.69 | 196.51 | 187.48 | 195.96 | +3.78% | |
| 190.09 | 190.58 | 184.90 | 188.83 | -1.77% | |
| 194.50 | 195.28 | 191.67 | 192.23 | -1.92% | |
| 195.55 | 198.46 | 195.11 | 196.00 | -0.20% | |
| 196.97 | 198.00 | 194.50 | 196.39 | -0.29% | |
| 194.11 | 199.80 | 194.11 | 196.97 | +2.01% | |
| 194.30 | 195.50 | 192.27 | 193.08 | -0.35% | |
| 190.53 | 194.75 | 190.01 | 193.76 | +2.26% | |
| 187.40 | 190.27 | 185.85 | 189.47 | +0.89% | |
| 191.41 | 193.38 | 186.37 | 187.80 | -1.45% | |
| 191.72 | 193.03 | 188.64 | 190.56 | -0.70% | |
| 191.25 | 193.37 | 189.19 | 191.91 | -0.54% | |
| 191.83 | 194.91 | 190.66 | 192.95 | +0.83% | |
| 200.25 | 205.00 | 189.49 | 191.37 | -6.43% | |
| 199.33 | 205.97 | 198.86 | 204.53 | +2.59% | |
| 198.47 | 202.40 | 196.47 | 199.36 | +0.71% | |
| 194.76 | 200.31 | 194.75 | 197.95 | +2.33% | |
| 189.68 | 195.20 | 189.50 | 193.45 | +1.08% | |
| 190.34 | 192.10 | 188.86 | 191.38 | +0.37% | |
| 189.13 | 191.17 | 188.30 | 190.68 | +0.82% | |
| 187.38 | 189.69 | 186.00 | 189.13 | +1.03% | |
| 186.28 | 187.51 | 185.44 | 187.21 | +0.08% | |
| 189.28 | 190.57 | 186.14 | 187.06 | -1.17% | |
| 194.02 | 195.98 | 187.16 | 189.28 | -2.62% | |
| 183.12 | 195.89 | 180.18 | 194.38 | +6.00% | |
| 182.45 | 184.41 | 181.89 | 183.38 | +1.50% | |
| 183.16 | 186.15 | 179.15 | 180.67 | -2.01% | |
| 186.65 | 186.65 | 183.17 | 184.38 | -1.86% | |
| 189.46 | 190.32 | 187.01 | 187.88 | -1.15% | |
| 189.31 | 192.75 | 188.67 | 190.07 | +2.22% | |
| 184.52 | 187.74 | 181.75 | 185.95 | +1.42% | |
| 179.54 | 184.26 | 178.72 | 183.34 | +3.38% | |
| 176.29 | 178.41 | 175.69 | 177.35 | +0.76% | |
| 178.82 | 179.99 | 174.85 | 176.02 | -2.50% | |
| 179.36 | 180.87 | 177.70 | 180.54 | +0.88% | |
| 177.71 | 181.77 | 177.45 | 178.96 | +1.47% | |
| 172.62 | 176.79 | 171.22 | 176.37 | +1.97% | |
| 177.97 | 177.97 | 172.32 | 172.97 | -2.34% | |
| 177.81 | 180.06 | 174.97 | 177.11 | -1.55% | |
| 178.24 | 180.24 | 176.35 | 179.90 | +2.44% | |
| 172.20 | 175.64 | 170.43 | 175.61 | +1.90% | |
| 177.00 | 177.39 | 168.64 | 172.34 | -2.82% | |
| 181.46 | 182.23 | 176.39 | 177.34 | -3.50% | |
| 183.16 | 186.31 | 181.71 | 183.78 | +0.25% | |
| 179.46 | 184.68 | 171.37 | 183.33 | -2.26% | |
| 186.16 | 190.09 | 185.51 | 187.57 | +2.03% | |
| 191.06 | 191.06 | 183.01 | 183.84 | -3.78% | |
| 189.00 | 192.28 | 188.36 | 191.06 | +0.99% | |
| 184.91 | 189.38 | 184.91 | 189.18 | +2.85% | |
| 182.63 | 184.84 | 180.33 | 183.94 | +0.16% | |
| 183.48 | 185.00 | 183.00 | 183.64 | +1.20% | |
| 183.13 | 183.69 | 180.47 | 181.46 | -1.06% | |
| 182.18 | 185.45 | 181.68 | 183.41 | +0.60% | |
| 184.13 | 184.32 | 180.48 | 182.31 | -1.61% | |
| 184.73 | 186.52 | 183.20 | 185.29 | +1.11% | |
| 182.75 | 184.62 | 181.88 | 183.26 | +0.94% | |
| 185.99 | 188.00 | 181.46 | 181.55 | -1.81% | |
| 187.86 | 188.91 | 184.63 | 184.90 | -2.93% | |
| 187.54 | 192.99 | 187.54 | 190.48 | +1.10% | |
| 187.69 | 190.78 | 187.02 | 188.41 | +0.09% | |
| 183.91 | 188.50 | 182.60 | 188.24 | +1.82% | |
| 186.25 | 186.25 | 181.24 | 184.87 | -1.71% | |
| 187.97 | 190.99 | 185.95 | 188.08 | -0.98% | |
| 185.06 | 190.37 | 183.16 | 189.94 | +3.22% | |
| 185.01 | 187.05 | 181.79 | 184.02 | -2.14% | |
| 190.22 | 190.75 | 186.72 | 188.05 | -1.97% | |
| 187.51 | 192.46 | 186.62 | 191.82 | +2.02% | |
| 190.30 | 190.74 | 185.90 | 188.02 | -1.42% | |
| 194.23 | 196.73 | 189.89 | 190.73 | -2.25% | |
| 196.03 | 198.72 | 194.43 | 195.13 | -0.62% | |
| 191.82 | 197.05 | 189.11 | 196.34 | +2.24% | |
| 190.78 | 192.60 | 189.95 | 192.03 | -0.03% | |
| 193.51 | 195.00 | 191.05 | 192.08 | -1.06% | |
| 195.32 | 195.68 | 193.11 | 194.13 | -0.76% | |
| 197.46 | 200.29 | 193.37 | 195.62 | -0.46% | |
| 196.27 | 199.50 | 195.52 | 196.52 | +0.52% | |
| 190.15 | 196.00 | 189.00 | 195.50 | +2.25% | |
| 188.35 | 192.00 | 187.20 | 191.20 | +1.17% | |
| 194.07 | 195.72 | 188.74 | 188.99 | -2.49% | |
| 199.83 | 201.00 | 191.88 | 193.81 | -3.66% | |
| 187.01 | 202.41 | 184.60 | 201.18 | +8.53% | |
| 184.87 | 187.73 | 184.54 | 185.36 | -0.05% | |
| 177.25 | 186.24 | 177.10 | 185.45 | +4.92% | |
| 177.79 | 182.67 | 176.19 | 176.76 | -1.30% | |
| 179.30 | 180.76 | 177.58 | 179.09 | -0.44% | |
| 177.09 | 180.14 | 175.96 | 179.89 | +2.11% | |
| 174.88 | 177.20 | 173.51 | 176.18 | +0.77% | |
| 173.63 | 175.06 | 170.85 | 174.83 | +0.41% | |
| 173.02 | 176.14 | 172.23 | 174.12 | +0.58% | |
| 171.67 | 174.31 | 170.59 | 173.12 | +0.89% | |
| 173.17 | 173.90 | 170.04 | 171.59 | -1.27% | |
| 171.78 | 175.29 | 171.65 | 173.80 | +0.68% | |
| 165.31 | 172.87 | 165.31 | 172.62 | +4.38% | |
| 161.51 | 165.61 | 160.36 | 165.38 | +0.58% | |
| 168.87 | 169.34 | 163.74 | 164.42 | -2.46% | |
| 169.03 | 169.79 | 166.79 | 168.57 | -0.44% | |
| 177.73 | 178.41 | 165.58 | 169.31 | -5.04% | |
| 185.42 | 186.32 | 177.05 | 178.30 | -3.95% | |
| 188.00 | 188.00 | 182.73 | 185.63 | -1.06% | |
| 186.74 | 190.20 | 186.49 | 187.62 | +0.87% | |
| 187.02 | 187.77 | 183.50 | 186.00 | -0.49% | |
| 181.70 | 187.06 | 181.70 | 186.91 | +2.35% | |
| 174.94 | 182.97 | 174.30 | 182.61 | +4.57% | |
| 175.73 | 180.56 | 171.61 | 174.63 | -1.79% | |
| 175.37 | 178.24 | 174.28 | 177.82 | +1.04% | |
| 175.76 | 177.19 | 175.02 | 175.99 | -0.23% | |
| 176.30 | 176.99 | 175.72 | 176.40 | -0.24% | |
| 177.00 | 178.46 | 176.31 | 176.83 | -0.14% | |
| 175.30 | 177.19 | 175.00 | 177.08 | +0.43% | |
| 175.73 | 177.18 | 175.37 | 176.33 | +0.86% | |
| 174.26 | 175.58 | 173.08 | 174.82 | +0.07% | |
| 174.78 | 177.29 | 172.90 | 174.70 | -0.06% | |
| 171.32 | 176.42 | 170.00 | 174.80 | +2.88% | |
| 171.59 | 173.00 | 168.56 | 169.91 | -1.27% | |
| 171.43 | 173.83 | 169.55 | 172.10 | +0.35% | |
| 174.51 | 174.51 | 169.52 | 171.50 | -2.41% | |
| 173.67 | 175.94 | 170.45 | 175.74 | +0.94% | |
| 173.49 | 175.08 | 171.27 | 174.10 | +0.93% | |
| 177.47 | 180.79 | 172.00 | 172.50 | -2.84% | |
| 173.30 | 178.17 | 169.24 | 177.55 | +0.97% | |
| 179.91 | 181.99 | 175.39 | 175.84 | -2.55% | |
| 181.30 | 182.12 | 179.21 | 180.44 | -0.47% | |
| 181.96 | 183.15 | 181.10 | 181.30 | -0.37% | |
| 181.86 | 182.69 | 179.27 | 181.98 | +0.68% | |
| 180.17 | 182.94 | 178.05 | 180.75 | +0.32% | |
| 177.32 | 180.55 | 174.53 | 180.18 | +1.35% | |
| 180.15 | 181.78 | 175.88 | 177.78 | -2.37% | |
| 182.07 | 182.74 | 180.69 | 182.09 | +0.08% | |
| 181.96 | 183.93 | 180.76 | 181.94 | -0.01% | |
| 177.07 | 182.97 | 176.09 | 181.96 | +2.91% | |
| 177.65 | 185.17 | 175.57 | 176.82 | +0.87% | |
| 168.54 | 176.02 | 167.42 | 175.30 | +4.23% | |
| 168.15 | 170.91 | 165.75 | 168.18 | +0.15% | |
| 168.83 | 168.90 | 165.79 | 167.93 | -0.53% | |
| 164.40 | 170.78 | 163.00 | 168.83 | +2.52% | |
| 167.00 | 167.97 | 163.50 | 164.68 | -1.71% | |
| 164.72 | 169.00 | 163.00 | 167.55 | +1.71% | |
| 161.57 | 167.87 | 161.20 | 164.73 | +2.01% | |
| 160.00 | 162.56 | 158.05 | 161.48 | +1.20% | |
| 156.76 | 159.95 | 154.20 | 159.56 | +2.11% | |
| 155.41 | 156.55 | 153.77 | 156.26 | +0.48% | |
| 156.70 | 156.70 | 151.83 | 155.51 | -0.78% | |
| 155.76 | 157.80 | 153.76 | 156.74 | +2.16% | |
| 149.66 | 153.68 | 148.51 | 153.43 | +2.75% | |
| 150.89 | 152.90 | 149.05 | 149.33 | -1.39% | |
| 153.60 | 155.33 | 149.63 | 151.44 | -1.83% | |
| 147.99 | 155.18 | 146.52 | 154.27 | +3.11% | |
| 140.10 | 154.44 | 138.00 | 149.61 | +1.18% | |
| 148.82 | 149.91 | 147.54 | 147.86 | -0.85% | |
| 150.01 | 150.30 | 148.37 | 149.13 | -0.86% | |
| 150.07 | 150.92 | 148.10 | 150.43 | +0.36% | |
| 151.09 | 151.92 | 148.98 | 149.89 | -0.13% | |
| 148.99 | 150.29 | 147.57 | 150.08 | +1.60% | |
| 147.37 | 149.12 | 146.25 | 147.72 | +1.03% | |
| 146.09 | 147.89 | 144.29 | 146.22 | -0.28% | |
| 143.31 | 147.47 | 142.41 | 146.63 | +2.54% | |
| 142.10 | 144.32 | 141.67 | 143.00 | +0.52% | |
| 144.05 | 147.48 | 141.70 | 142.26 | -0.97% | |
| 144.74 | 145.19 | 142.29 | 143.66 | -1.14% | |
| 144.09 | 146.88 | 142.20 | 145.31 | +0.43% | |
| 146.47 | 147.56 | 144.65 | 144.69 | -1.28% | |
| 150.00 | 150.20 | 144.74 | 146.57 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the BIIB chart for longer ranges.