Biogen Inc (BIIB) — Free Cash Flow Generation Index
Biogen Inc (BIIB) has a Free Cash Flow Generation Index of 1.09x as of June 2026. Free cash flow of $489.80 Million represents 1% of operating cash flow ($448.90 Million). Explore BIIB capital expenditure intensity to see what proportion of operating cash flow is directed to capital expenditures.
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. For the full cash flow conversion analysis, see Biogen Inc (BIIB) cash conversion ratio.
Annual Free Cash Flow Generation for Biogen Inc (1990–2025)
Year-by-year Free Cash Flow Generation Index for Biogen Inc. Check total reinvestment intensity of Biogen Inc to assess the company's total reinvestment commitment from operating cash flow.
| 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 | — |