Biogen Inc (BIIB) — Free Cash Flow Generation Index
Biogen Inc (BIIB) has a Free Cash Flow Generation Index of 1.09x as of December 2025. Free cash flow of $555.90 Million represents 1% of operating cash flow ($511.90 Million). Read Biogen Inc (BIIB) financial obligations for a breakdown of total debt and financial obligations.
FCF Generation Index
Free Cash Flow
Operating Cash Flow
Capital Expenditures
Biogen Inc Free Cash Flow Generation Index (1990–2025)
Historical FCF Generation Index trend for Biogen Inc across 36 annual periods. Explore BIIB capital expenditure intensity to see what proportion of operating cash flow is directed to capital expenditures.
Annual Free Cash Flow Generation for Biogen Inc (1990–2025)
Year-by-year Free Cash Flow Generation Index for Biogen Inc. For the full company profile including market capitalisation, see BIIB stock market capitalisation.
| Year | FCG Index | Free Cash Flow (USD) | Operating CF | Capital Expenditures | YoY Change |
|---|---|---|---|---|---|
| 2025 | 0.93x | $2.05 Billion | $2.20 Billion | $153.80 Million | ▲ +6.3% |
| 2024 | 0.87x | $2.52 Billion | $2.88 Billion | $359.80 Million | ▲ +9.5% |
| 2023 | 0.80x | $1.24 Billion | $1.55 Billion | $311.40 Million | ▼ -3.3% |
| 2022 | 0.83x | $1.14 Billion | $1.38 Billion | $240.30 Million | ▼ -10.1% |
| 2021 | 0.92x | $3.35 Billion | $3.64 Billion | $294.90 Million | ▲ +5.7% |
| 2020 | 0.87x | $3.68 Billion | $4.23 Billion | $551.80 Million | ▼ -6.2% |
| 2019 | 0.93x | $6.56 Billion | $7.08 Billion | $514.50 Million | ▲ +8.2% |
| 2018 | 0.86x | $5.30 Billion | $6.19 Billion | $770.60 Million | ▲ +5.9% |
| 2017 | 0.81x | $3.68 Billion | $4.55 Billion | $867.40 Million | ▼ -5.2% |
| 2016 | 0.85x | $3.86 Billion | $4.52 Billion | $616.10 Million | ▲ +3.2% |
| 2015 | 0.83x | $3.07 Billion | $3.72 Billion | $643.00 Million | ▼ -7.4% |
| 2014 | 0.89x | $2.63 Billion | $2.94 Billion | $287.80 Million | ▲ +279.8% |
| 2013 | -0.50x | $-1.16 Billion | $2.35 Billion | $3.51 Billion | ▼ -157.4% |
| 2012 | 0.86x | $1.63 Billion | $1.88 Billion | $254.55 Million | ▲ +1.2% |
| 2011 | 0.85x | $1.48 Billion | $1.73 Billion | $252.18 Million | ▼ -4.4% |
| 2010 | 0.89x | $1.45 Billion | $1.62 Billion | $173.06 Million | ▲ +5.6% |
| 2009 | 0.85x | $909.25 Million | $1.07 Billion | $165.65 Million | ▲ +2.7% |
| 2008 | 0.82x | $1.29 Billion | $1.56 Billion | $275.95 Million | ▲ +14.1% |
| 2007 | 0.72x | $736.53 Million | $1.02 Billion | $284.11 Million | ▼ -5.6% |
| 2006 | 0.76x | $642.96 Million | $841.27 Million | $198.31 Million | ▲ +19.0% |
| 2005 | 0.64x | $571.13 Million | $889.50 Million | $318.38 Million | ▲ +30.5% |
| 2004 | 0.49x | $358.22 Million | $727.99 Million | $369.76 Million | ▲ +231.5% |
| 2003 | -0.37x | $-82.03 Million | $219.21 Million | $301.25 Million | ▼ -850.5% |
| 2002 | 0.05x | $13.32 Million | $267.08 Million | $165.90 Million | ▼ -86.9% |
| 2001 | 0.38x | $120.82 Million | $316.36 Million | $195.53 Million | ▼ -16.2% |
| 2000 | 0.46x | $166.82 Million | $365.94 Million | $199.12 Million | ▼ -33.2% |
| 1999 | 0.68x | $185.96 Million | $272.29 Million | $86.33 Million | ▼ -14.6% |
| 1998 | 0.80x | $134.23 Million | $167.84 Million | $33.61 Million | ▲ +25.8% |
| 1997 | 0.64x | $62.08 Million | $97.63 Million | $35.55 Million | ▲ +255.0% |
| 1996 | -0.41x | $-19.10 Million | $46.54 Million | $65.64 Million | ▲ +90.5% |
| 1995 | -4.32x | $-40.86 Million | $9.45 Million | $50.31 Million | ▼ -1617.4% |
| 1994 | -0.25x | $-8.78 Million | $34.89 Million | $43.67 Million | ▼ -132.6% |
| 1993 | 0.77x | $36.80 Million | $47.60 Million | $10.80 Million | ▼ -1.1% |
| 1992 | 0.78x | $33.70 Million | $43.10 Million | $9.40 Million | ▲ +284.5% |
| 1991 | -0.42x | $-2.50 Million | $5.90 Million | $8.40 Million | ▼ -1033.5% |
| 1990 | -0.04x | $-400.00K | $10.70 Million | $11.10 Million | — |