15 years of revenue, profit, cash flow and balance-sheet history through FY2025,
from SEC filings — with a computed, factual read of the trend.
Updated Overview →
Growth & profitability
Revenue has declined 6.0% per year over the past 5 years.
Net income has grown slower than revenue (-20.2% vs -6.0% per year).
Free cash flow has declined 11.6% per year over the past 5 years.
Financial health
Total debt ($6.3B) exceeds cash ($3.0B); net debt is $3.3B.
Total debt has grown in line with revenue (-3.3% vs -6.0% per year).
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key annual figures
FY
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
2025
$9.9B
$1.3B
75.7%
0.0%
$2.1B
$6.3B
$3.0B
2024
$9.7B
$1.6B
76.1%
0.0%
$2.7B
$4.5B
$2.4B
2023
$9.8B
$1.2B
74.2%
0.0%
$1.3B
$6.8B
$1.0B
2022
$10.2B
$3.0B
77.6%
0.0%
$1.1B
$6.3B
$3.4B
2021
$11.0B
$1.6B
80.8%
25.9%
$3.4B
$6.3B
$2.3B
2020
$13.4B
$4.0B
86.6%
33.8%
$3.8B
$7.4B
$1.3B
2019
$14.4B
$5.9B
86.4%
49.0%
$6.6B
$4.5B
$2.9B
2018
$13.5B
$4.4B
86.5%
43.8%
$5.4B
$5.9B
$1.2B
2017
$12.3B
$2.5B
86.7%
43.6%
$3.7B
$5.9B
$1.6B
2016
$11.4B
$3.7B
87.1%
45.0%
$4.0B
$6.5B
—
2015
$10.8B
$3.5B
88.5%
45.4%
$3.3B
$6.5B
—
2014
$9.7B
$2.9B
87.9%
40.9%
$2.7B
$580M
—
2013
$6.9B
$1.9B
87.6%
36.3%
$2.1B
$592M
—
2012
$5.5B
$1.4B
90.1%
33.6%
$1.6B
$687M
—
2011
$5.0B
$1.2B
90.8%
34.2%
$1.5B
$1.0B
—
Revenue & net income
RevenueNet income
Margins (gross / operating / net)
GrossOperatingNet
Free cash flow (CFO − capex, quarterly)
Free cash flow
Cash vs total debt
CashTotal debt
Cash flow: operating / investing / financing
OperatingInvestingFinancing
Key quarterly figures
Quarter
Revenue
Net income
Gross M
Op M
FCF
Total debt
Cash
Mar '26
$2.5B
$320M
73.3%
0.0%
$594M
$6.3B
$3.4B
Dec '25
$2.3B
-$49M
78.3%
0.0%
$468M
$6.3B
$3.0B
Sep '25
$2.5B
$467M
73.4%
0.0%
$1.2B
$6.3B
$3.9B
Jun '25
$2.6B
$635M
77.1%
0.0%
$134M
$6.3B
$2.8B
Mar '25
$2.4B
$241M
74.1%
0.0%
$222M
$4.5B
$2.6B
Dec '24
$2.5B
$267M
76.2%
0.0%
$722M
$4.5B
$2.4B
Sep '24
$2.5B
$389M
74.1%
0.0%
$901M
$4.5B
$1.7B
Jun '24
$2.5B
$584M
77.8%
0.0%
$592M
$6.3B
$1.9B
Mar '24
$2.3B
$393M
76.3%
0.0%
$507M
$6.3B
$1.1B
Dec '23
$2.4B
$250M
74.1%
0.0%
-$53M
$6.8B
$1.0B
Sep '23
$2.5B
-$68M
73.9%
0.0%
$518M
$6.8B
$2.3B
Jun '23
$2.5B
$592M
75.9%
0.0%
$416M
$6.3B
$2.6B
Mar '23
$2.5B
$388M
73.1%
0.0%
$389M
$6.3B
$2.9B
Dec '22
$2.5B
$550M
77.6%
0.0%
-$261M
$6.3B
$3.4B
Sep '22
$2.5B
$1.1B
81.3%
0.0%
$602M
$6.3B
$3.7B
Jun '22
$2.6B
$1.1B
81.3%
0.0%
$700M
$6.3B
$2.6B
Mar '22
$2.5B
$304M
70.2%
24.1%
$104M
$6.3B
$1.7B
Dec '21
$2.7B
$368M
75.9%
21.5%
$787M
$6.3B
$2.3B
Sep '21
$2.8B
$329M
81.6%
28.6%
$763M
$6.3B
$1.5B
Jun '21
$2.8B
$449M
83.4%
17.5%
$1.2B
$7.3B
$1.7B
Valuation over time
How the market has priced BIIB against its own fundamentals since 2023-03 —
each month-end's share price set against the most recent annual filing, so the multiple moves
as price runs ahead of (or behind) earnings. Split-adjusted.
The price-to-earnings ratio has risen from 13.5× (Mar '23) to 23.1× (Jun '26).
The price-to-sales ratio has fallen from 4.0× (Mar '23) to 3.0× (Jun '26).
Price / earnings (P/E)
P/E
Price / sales (P/S)
P/S
Frequently asked questions
Is BIIB growing its revenue and profit?
Over the past 5 years, Biogen's revenue has declined 6.0% per year, and net income declined 20.2% per year. These are computed facts, not advice.
How much debt does BIIB have?
As of FY2025, Biogen reported $6.3B of total debt against $3.0B of cash.
What is BIIB's profit margin?
In FY2025, gross margin was 75.7%, operating margin —, and net margin 13.1%.
What is BIIB's P/E ratio?
As of Jun '26, Biogen traded at a price-to-earnings ratio of about 23.1× (market cap ÷ latest annual net income). The valuation charts above show how its P/E, P/S have moved with the share price. These are computed facts, not advice.
Where does this data come from?
All figures are extracted from the company’s SEC EDGAR/XBRL filings — 10-K annual reports and 10-Q quarterly reports (use the Annual / Quarterly toggle). Quarterly figures are derived from the as-filed statements (year-to-date amounts are differenced into discrete quarters). Growth rates and ratios are computed by tradmap; nothing here is investment advice.
Source: SEC EDGAR / XBRL (10-K + 10-Q filings) · prices EOD (Databento), corporate-action-adjusted ·
growth rates, valuation multiples & ratios computed by tradmap. Valuation uses each month-end price
against the latest annual filing. Informational only — not investment advice.