Biogen Inc. historical data
| Date | Open | High | Low | Close | Adj. close | Volume |
|---|---|---|---|---|---|---|
| 2025-08-07 | 130.02 | 130.68 | 127.65 | 127.75 | 127.75 | 1,718,100 |
| 2025-08-06 | 132.42 | 132.67 | 128.90 | 129.34 | 129.34 | 1,538,600 |
| 2025-08-05 | 131.91 | 134.16 | 131.57 | 132.89 | 132.89 | 1,395,600 |
| 2025-08-04 | 132.33 | 133.98 | 130.39 | 132.20 | 132.20 | 1,897,800 |
| 2025-08-01 | 128.96 | 132.90 | 124.56 | 131.95 | 131.95 | 2,798,200 |
| 2025-07-31 | 133.00 | 135.43 | 127.24 | 128.00 | 128.00 | 3,239,700 |
| 2025-07-30 | 128.56 | 129.78 | 125.97 | 126.64 | 126.64 | 1,892,100 |
| 2025-07-29 | 128.54 | 129.26 | 127.60 | 127.90 | 127.90 | 1,108,800 |
| 2025-07-28 | 131.35 | 131.85 | 128.43 | 129.28 | 129.28 | 1,045,500 |
| 2025-07-25 | 133.05 | 133.05 | 130.13 | 131.52 | 131.52 | 977,000 |
| 2025-07-24 | 130.78 | 132.65 | 130.00 | 132.59 | 132.59 | 1,280,500 |
| 2025-07-23 | 129.44 | 131.25 | 128.36 | 130.98 | 130.98 | 1,127,200 |
| 2025-07-22 | 123.38 | 127.94 | 123.38 | 127.85 | 127.85 | 1,319,100 |
| 2025-07-21 | 124.98 | 125.42 | 121.05 | 122.68 | 122.68 | 1,403,500 |
| 2025-07-18 | 129.37 | 129.58 | 124.68 | 124.99 | 124.99 | 1,524,800 |
| 2025-07-17 | 128.18 | 129.21 | 127.31 | 128.69 | 128.69 | 1,151,200 |
| 2025-07-16 | 128.50 | 129.51 | 127.42 | 128.46 | 128.46 | 1,234,700 |
| 2025-07-15 | 132.96 | 133.36 | 127.47 | 127.50 | 127.50 | 1,317,000 |
| 2025-07-14 | 133.56 | 134.21 | 132.40 | 133.11 | 133.11 | 694,400 |
| 2025-07-11 | 133.49 | 134.59 | 132.37 | 134.21 | 134.21 | 1,137,500 |
| 2025-07-10 | 133.45 | 137.19 | 132.77 | 135.33 | 135.33 | 992,000 |
| 2025-07-09 | 134.56 | 137.84 | 131.67 | 133.02 | 133.02 | 1,528,800 |
| 2025-07-08 | 130.32 | 135.58 | 130.32 | 134.46 | 134.46 | 1,350,600 |
| 2025-07-07 | 132.10 | 133.20 | 129.08 | 130.13 | 130.13 | 1,086,900 |
| 2025-07-03 | 133.49 | 134.42 | 132.21 | 132.87 | 132.87 | 633,300 |
| 2025-07-02 | 130.00 | 134.63 | 129.85 | 133.19 | 133.19 | 1,474,200 |
| 2025-07-01 | 124.94 | 134.75 | 124.94 | 130.07 | 130.07 | 1,919,400 |
| 2025-06-30 | 126.30 | 126.53 | 123.90 | 125.59 | 125.59 | 1,184,400 |
| 2025-06-27 | 127.20 | 128.25 | 125.60 | 126.08 | 126.08 | 1,100,000 |
| 2025-06-26 | 127.89 | 129.27 | 126.46 | 126.92 | 126.92 | 864,900 |
| 2025-06-25 | 126.30 | 127.98 | 125.13 | 127.31 | 127.31 | 1,095,900 |
| 2025-06-24 | 125.57 | 127.36 | 125.02 | 126.31 | 126.31 | 938,200 |
| 2025-06-23 | 126.90 | 127.68 | 123.21 | 124.76 | 124.76 | 1,190,200 |
| 2025-06-20 | 127.96 | 128.64 | 126.12 | 127.04 | 127.04 | 2,166,600 |
| 2025-06-18 | 127.06 | 127.88 | 125.24 | 126.54 | 126.54 | 2,331,000 |
| 2025-06-17 | 130.27 | 130.70 | 126.49 | 126.56 | 126.56 | 1,154,600 |
| 2025-06-16 | 131.49 | 131.58 | 128.83 | 131.04 | 131.04 | 1,111,900 |
| 2025-06-13 | 130.87 | 132.49 | 130.10 | 130.65 | 130.65 | 1,207,400 |
| 2025-06-12 | 132.93 | 134.12 | 131.47 | 132.31 | 132.31 | 1,147,500 |
| 2025-06-11 | 135.90 | 136.41 | 132.90 | 133.06 | 133.06 | 1,331,100 |
| 2025-06-10 | 134.25 | 136.84 | 133.42 | 135.49 | 135.49 | 991,000 |
| 2025-06-09 | 134.06 | 135.69 | 132.93 | 134.15 | 134.15 | 1,081,500 |
| 2025-06-06 | 131.55 | 133.72 | 131.45 | 133.13 | 133.13 | 1,166,100 |
| 2025-06-05 | 131.87 | 132.12 | 129.61 | 130.36 | 130.36 | 1,235,400 |
| 2025-06-04 | 132.45 | 133.66 | 131.67 | 131.86 | 131.86 | 1,472,900 |
| 2025-06-03 | 130.77 | 134.74 | 129.51 | 131.84 | 131.84 | 1,824,900 |
| 2025-06-02 | 129.59 | 131.85 | 128.07 | 131.14 | 131.14 | 1,868,100 |
| 2025-05-30 | 132.59 | 132.59 | 129.62 | 129.79 | 129.79 | 3,640,000 |
| 2025-05-29 | 128.10 | 132.94 | 127.53 | 132.75 | 132.75 | 1,957,000 |
| 2025-05-28 | 128.12 | 129.90 | 126.87 | 127.53 | 127.53 | 1,558,700 |
| 2025-05-27 | 126.97 | 129.36 | 125.89 | 128.39 | 128.39 | 1,584,200 |
| 2025-05-23 | 124.29 | 126.19 | 123.97 | 125.81 | 125.81 | 837,400 |
| 2025-05-22 | 126.55 | 127.07 | 125.35 | 126.30 | 126.30 | 937,000 |
| 2025-05-21 | 129.70 | 130.07 | 126.28 | 126.82 | 126.82 | 1,593,900 |
| 2025-05-20 | 129.04 | 131.13 | 128.82 | 130.55 | 130.55 | 1,684,800 |
| 2025-05-19 | 126.25 | 129.56 | 124.93 | 129.44 | 129.44 | 2,387,500 |
| 2025-05-16 | 123.70 | 125.77 | 122.46 | 125.59 | 125.59 | 1,804,000 |
| 2025-05-15 | 121.16 | 123.72 | 119.18 | 123.70 | 123.70 | 1,944,900 |
| 2025-05-14 | 123.38 | 123.74 | 120.04 | 120.37 | 120.37 | 1,495,500 |
| 2025-05-13 | 124.01 | 124.40 | 121.60 | 123.16 | 123.16 | 1,715,200 |
Stock splits
| Date | Split (new : old) |
|---|---|
| 2001-01-18 | 3:1 |
| 1999-12-21 | 2:1 |
Dividends
No dividends on record.
Open, high, low and close are as traded (USD). Adjusted close accounts for splits and dividends. Educational only, not financial advice.