Biogen Inc. BIIB

FY2025 · ended Dec 31, 2025 · Revenue $9.89B, +2.2% YoY · Filed Feb 6, 2026

Biogen Inc. (BIIB) files with the SEC under industry code 2836, Biological Products, (No Diagnostic Substances). In fiscal 2025, which ended Dec 31, 2025, it reported revenue of $9.9 billion and net income of $1.3 billion. Free cash flow was $2.1 billion. As of Sep 30, 2026 it held $1.3 billion in cash and investments and $7.4 billion in total debt.

Revenue (TTM)
$10.30B
+2.3% vs year-ago TTM
Net income (TTM)
$347.50M
-78.4% vs year-ago TTM
Operating cash flow (TTM)
$2.25B
-8.4% vs year-ago TTM
Free cash flow (TTM)
$2.07B
-10.1% vs year-ago TTM
EPS (TTM)
$2.34
-78.7% vs year-ago TTM
Dividend per share
None
Shares outstanding
146.76M
+0.3% vs prior year
Net cash
$-6.10B
as of Sep 30, 2026
Operating margin
25.9%
FY 2021

Company profile

Industry
Biological Products, (No Diagnostic Substances) (SIC 2836)
Listed as
BIIB (Nasdaq)
Fiscal year ends
December 31
Incorporated in
DE
Headquarters
Cambridge, MA
SEC filer status
Large accelerated filer
SEC CIK
875045
Former names
BIOGEN IDEC INC. (until Mar 20, 2015); BIOGEN IDEC INC (until Apr 25, 2007); IDEC PHARMACEUTICALS CORP / DE (until Nov 12, 2003); IDEC PHARMACEUTICALS CORP / CA (until Feb 14, 1997)

Other Biological Products, (No Diagnostic Substances) companies

Key figures

Fiscal-year totals from the annual reports. Balance sheet lines are as of each year end.

Line
FY 2025
Dec 31, 2025
FY 2024
Dec 31, 2024
FY 2023
Dec 31, 2023
FY 2022
Dec 31, 2022
FY 2021
Dec 31, 2021
Revenue
$9.9B
$9.7B
$9.8B
$10.2B
$11.0B
Operating income
—
—
—
—
$2.8B
Net income
$1.3B
$1.6B
$1.2B
$3.0B
$1.6B
Diluted EPS
$8.79
$11.18
$7.97
$20.87
$10.40
Operating cash flow
$2.2B
$2.9B
$1.5B
$1.4B
$3.6B
Free cash flow
$2.1B
$2.7B
$1.3B
$1.1B
$3.4B
Total assets
$29.4B
$28.0B
$26.8B
$24.6B
$23.9B
Total liabilities
$11.2B
$11.3B
$12.0B
$11.2B
$12.9B
Stockholders' equity
$18.3B
$16.7B
$14.8B
$13.4B
$11.0B
Cash and investments
$4.2B
$2.4B
$1.0B
$5.6B
$4.7B
Total debt
$6.7B
$6.7B
$7.4B
$6.7B
$6.7B

Recent SEC filings

Recent SEC filings
Form Description Filed Period
10-Q Quarterly report Oct 28, 2026 Sep 30, 2026
8-K Current report
Results of operations
Oct 28, 2026 Oct 28, 2026
10-Q Quarterly report Jul 29, 2026 Jun 30, 2026
8-K Current report
Results of operations
Jul 29, 2026 Jul 29, 2026
8-K Current report
Results of operations
Jul 1, 2026 Jul 1, 2026
8-K Current report
Shareholder vote results
Jun 10, 2026 Jun 9, 2026

Source: SEC EDGAR filings. This is company-reported data, not investment advice.