BIIB
Biogen Inc.
227.50$
+1.0%
vs. previous close
Closing price · As of: Sep 23, 2026
Statements
Ratios
Valuation ratios (P/E, P/S, EV/EBITDA and the other multiples) are based on the closing price at the end of each period, not on the current price. Margins and returns are shown in percent, multiples without a unit, per-share figures in the reporting currency, net debt in millions.
Tick rows to compare them in a chart (up to 4)
| Line item | 1996 | 1997 | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | 2008 | 2009 | 2010 | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Valuation | ||||||||||||||||||||||||||||||
| 89.9 | 59.6 | 53.4 | 70.4 | 87.9 | 100.8 | 89.4 | – | 911.9 | 97.6 | 78.1 | 28.5 | 17.9 | 16.0 | 17.0 | 21.9 | 25.4 | 35.8 | 27.4 | 20.0 | 16.8 | 26.7 | 13.9 | 9.4 | 9.9 | 23.1 | 13.3 | 32.5 | 13.7 | 20.0 | |
| 13.2 | 12.2 | 13.3 | 19.5 | 31.7 | 26.4 | 32.8 | 65.8 | 14.3 | 9.2 | 6.3 | 5.7 | 3.4 | 3.5 | 3.6 | 5.3 | 6.4 | 9.6 | 8.3 | 6.6 | 5.4 | 5.5 | 4.6 | 3.9 | 2.9 | 3.3 | 4.0 | 3.8 | 2.3 | 2.6 | |
| 7.5 | 9.9 | 10.3 | 15.8 | 26.5 | 20.4 | 8.3 | 1.7 | 3.4 | 2.3 | 2.4 | 3.3 | 2.4 | 2.5 | 3.2 | 4.2 | 5.0 | 7.7 | 7.4 | 7.6 | 5.1 | 5.4 | 4.7 | 4.2 | 3.7 | 3.3 | 3.0 | 2.5 | 1.3 | 1.4 | |
| 12.9 | 12.1 | 13.2 | 19.5 | 31.8 | 26.4 | 34.8 | 69.4 | 14.7 | 9.0 | 6.1 | 6.0 | 3.5 | 3.7 | 3.7 | 5.5 | 6.5 | 9.6 | 8.2 | 7.1 | 5.8 | 5.9 | 4.9 | 4.1 | 3.4 | 3.7 | 4.3 | 4.4 | 2.7 | 3.0 | |
| 64.0 | 31.3 | 34.3 | 44.5 | 55.4 | 64.0 | 54.6 | – | 45.0 | 23.2 | 18.9 | 14.4 | 8.7 | 8.9 | 10.8 | 13.1 | 16.2 | 22.0 | 17.4 | 13.5 | 10.4 | 10.9 | 9.5 | 7.6 | 9.0 | 10.4 | 12.3 | 18.3 | 8.8 | 9.4 | |
| – | 85.6 | 55.2 | 83.4 | 175.7 | 227.4 | 994.1 | – | 63.9 | 27.5 | 26.4 | 24.7 | 10.9 | 17.0 | 11.8 | 18.3 | 21.6 | – | 30.7 | 23.1 | 16.1 | 18.4 | 11.7 | 8.5 | 10.7 | 10.7 | 35.3 | 30.5 | 8.9 | 12.6 | |
| -0.5% | 1.2% | 1.8% | 1.2% | 0.6% | 0.4% | 0.1% | -0.7% | 1.6% | 3.6% | 3.8% | 4.0% | 9.2% | 5.9% | 8.5% | 5.5% | 4.6% | -1.7% | 3.3% | 4.3% | 6.2% | 5.4% | 8.6% | 11.8% | 9.3% | 9.3% | 2.8% | 3.3% | 11.3% | 7.9% | |
| Margins | ||||||||||||||||||||||||||||||
| 89.7% | 88.4% | 86.6% | 86.0% | 86.5% | 86.9% | 99.6% | -53.0% | 65.3% | 78.2% | 89.8% | 89.4% | 90.2% | 91.3% | 91.5% | 90.8% | 90.1% | 87.6% | 87.9% | 88.5% | 87.5% | 86.7% | 86.5% | 86.4% | 86.6% | 80.8% | 77.6% | 74.2% | 76.1% | 70.5% | |
| 14.7% | 34.3% | 34.2% | 39.8% | 35.5% | 34.6% | 52.9% | -467.2% | 2.7% | 13.8% | 16.4% | 24.6% | 29.6% | 29.6% | 26.5% | 34.2% | 33.3% | 36.3% | 40.9% | 45.4% | 45.0% | 43.6% | 43.8% | 49.0% | 34.2% | 25.4% | 28.4% | 21.3% | 25.7% | 19.1% | |
| 14.6% | 20.5% | 24.9% | 27.7% | 36.0% | 26.2% | 36.6% | -470.1% | 1.6% | 9.4% | 8.1% | 20.1% | 19.1% | 22.2% | 21.3% | 24.5% | 25.0% | 26.9% | 30.2% | 33.0% | 32.3% | 20.7% | 32.9% | 41.0% | 29.8% | 14.2% | 29.9% | 11.8% | 16.9% | 13.2% | |
| -6.9% | 14.3% | 24.1% | 23.4% | 18.0% | 11.6% | 3.3% | -44.1% | 22.4% | 33.3% | 24.0% | 23.2% | 31.4% | 20.8% | 30.8% | 29.2% | 29.5% | -16.8% | 27.1% | 28.6% | 33.7% | 30.0% | 39.4% | 45.7% | 27.4% | 30.5% | 11.2% | 12.6% | 26.0% | 20.9% | |
| Returns | ||||||||||||||||||||||||||||||
| 8.4% | 16.6% | 19.3% | 22.5% | 30.1% | 20.2% | 9.3% | -12.4% | 0.4% | 2.3% | 3.0% | 11.5% | 13.5% | 15.6% | 18.6% | 19.2% | 19.8% | 21.6% | 27.1% | 37.8% | 30.5% | 20.2% | 34.0% | 44.1% | 37.4% | 14.3% | 22.7% | 7.8% | 9.8% | 7.1% | |
| 6.4% | 11.0% | 15.0% | 17.2% | 23.3% | 15.8% | 7.4% | -9.2% | 0.3% | 1.9% | 2.5% | 7.4% | 9.2% | 11.3% | 12.4% | 13.6% | 13.6% | 15.7% | 20.5% | 18.2% | 16.2% | 10.7% | 17.5% | 21.6% | 16.3% | 6.5% | 12.4% | 4.3% | 5.8% | 4.4% | |
| Balance Sheet & Debt | ||||||||||||||||||||||||||||||
| -58 | -41 | -21 | -52 | 85 | 87 | 826 | 667 | 641 | -188 | -565 | 903 | 491 | 518 | 444 | 550 | 570 | -6.6 | -620 | 5,218 | 4,191 | 4,364 | 4,712 | 3,041 | 6,261 | 5,012 | 3,056 | 5,888 | 3,921 | 3,359 | |
| -1.0 | -0.2 | -0.1 | -0.1 | 0.2 | 0.2 | 3.2 | – | 1.2 | -0.3 | -0.6 | 0.7 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 | 0.0 | -0.1 | 0.9 | 0.7 | 0.7 | 0.7 | 0.4 | 1.2 | 1.3 | 0.9 | 2.5 | 1.3 | 1.1 | |
| 76.3% | 65.9% | 77.7% | 76.6% | 77.3% | 78.4% | 79.5% | 74.2% | 74.5% | 82.5% | 83.6% | 64.1% | 68.5% | 72.8% | 66.7% | 71.0% | 68.7% | 72.7% | 75.5% | 48.1% | 53.0% | 53.3% | 51.6% | 49.0% | 43.5% | 45.6% | 54.6% | 55.1% | 59.6% | 62.0% | |
| 0.0 | 0.1 | 0.0 | 0.0 | 0.1 | 0.1 | 0.5 | 0.1 | 0.1 | 0.1 | 0.0 | 0.3 | 0.2 | 0.2 | 0.2 | 0.2 | 0.2 | 0.1 | 0.1 | 0.7 | 0.5 | 0.5 | 0.5 | 0.4 | 0.7 | 0.7 | 0.5 | 0.5 | 0.4 | 0.3 | |
| Per Share | ||||||||||||||||||||||||||||||
| 0.04 | 0.10 | 0.15 | 0.47 | 0.72 | 0.68 | 0.37 | -2.62 | 0.07 | 0.46 | 0.63 | 1.99 | 2.65 | 3.35 | 3.94 | 5.04 | 5.76 | 7.81 | 12.37 | 15.34 | 16.92 | 11.92 | 21.58 | 31.42 | 24.80 | 10.40 | 20.87 | 7.97 | 11.19 | 8.82 | |
| 0.30 | 0.47 | 0.59 | 1.68 | 2.00 | 2.61 | 1.01 | 0.56 | 4.65 | 4.95 | 7.77 | 9.91 | 13.89 | 15.12 | 18.51 | 20.60 | 23.00 | 29.09 | 40.91 | 46.56 | 52.33 | 57.62 | 65.53 | 76.72 | 83.35 | 73.41 | 69.68 | 67.55 | 66.32 | 66.88 | |
| 0.52 | 0.58 | 0.76 | 2.07 | 2.39 | 3.38 | 4.00 | 21.14 | 19.87 | 19.95 | 20.71 | 17.29 | 19.68 | 21.49 | 21.17 | 26.23 | 29.04 | 36.17 | 45.60 | 40.55 | 55.43 | 59.15 | 63.51 | 71.20 | 66.34 | 72.84 | 91.77 | 101.64 | 114.57 | 124.45 | |
| -0.02 | 0.07 | 0.14 | 0.39 | 0.36 | 0.30 | 0.03 | -0.25 | 1.04 | 1.65 | 1.86 | 2.30 | 4.37 | 3.14 | 5.70 | 6.02 | 6.78 | -4.88 | 11.07 | 13.29 | 17.64 | 17.29 | 25.82 | 35.03 | 22.80 | 22.36 | 7.84 | 8.49 | 17.24 | 13.98 | |
Data as of: September 23, 2026 · Source: fundamental data & SEC filings (annual and quarterly reports, 10-K/10-Q)
Note: pure fact-based analysis, not investment advice and not a solicitation to buy or sell. All figures without guarantee.