BIOGEN INC.
BIIB · Nasdaq · CIK 0000875045
SIC 2836
Biological Products, (No Diagnostic Substances)
Category
Chemicals
Entity
operating
Incorp.
DE
Fiscal Y/E
1231
Source: SEC EDGAR · All filings on SEC →
Investment Indicators
ROE
8.74%
ROA
4.39%
D/E Ratio
0.76
Current Ratio
2.68
Gross Margin
117.68%
Operating Margin
28.72%
Net Margin
13.07%
Book Value/Share
$100.81
Financial Statements
In USD millions (per-share figures shown directly) · Financials as of: 2026-02-06
Income Statement
| FY | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|
| Revenue | 9,891 | 9,676 | 9,836 | 10,173 | 10,982 |
| Operating Income | — | — | — | — | 2,841 |
| Net Income | 1,293 | 1,632 | 1,161 | 3,047 | 1,556 |
| EPS (Basic) | 8.83 | 11.21 | 8.02 | 20.96 | 10.44 |
| EPS (Diluted) | 8.79 | 11.18 | 7.97 | 20.87 | 10.40 |
Balance Sheet
| FY | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|
| Total Assets | 29,440 | 28,049 | 26,845 | 24,554 | 23,877 |
| Current Assets | 8,974 | 7,457 | 6,859 | 9,791 | 7,857 |
| Total Liabilities | 11,183 | 11,333 | 12,045 | 11,166 | 12,918 |
| Current Liabilities | 3,349 | 5,529 | 3,434 | 3,273 | 4,298 |
| Long-term Debt | 6,287 | 6,296 | 6,938 | 6,281 | 6,274 |
| Total Equity | — | — | 14,799 | 13,398 | 10,896 |
Cash Flow
| FY | 2025 | 2024 | 2023 | 2022 | 2021 |
|---|---|---|---|---|---|
| Operating CF | 2,205 | 2,876 | 1,547 | 1,384 | 3,640 |
| Investing CF | -1,371 | -799 | -4,101 | 1,577 | -564 |
| Financing CF | -302 | -684 | 149 | -1,747 | -2,086 |
| CapEx | 154 | 154 | 277 | 240 | 258 |
📄 SEC Filings
Current Report
8-K
2026-05-14
Open →
Quarterly Report
10-Q
2026-04-29
Open →
Current Report
8-K
2026-04-29
Open →
Proxy Statement
DEF 14A
2026-04-28
Open →
Current Report
8-K
2026-04-06
Open →
Current Report
8-K
2026-03-31
Open →
Current Report
CURRENT REPORT
2026-03-11
Open →
Current Report
8-K
2026-02-11
Open →
Annual Report
10-K
2026-02-06
Open →
Current Report
8-K
2026-02-06
Open →
Current Report
8-K
2026-01-14
Open →
Quarterly Report
10-Q
2025-10-30
Open →
Current Report
8-K
2025-10-30
Open →
Current Report
8-K
2025-10-14
Open →
Current Report
8-K
2025-07-31
Open →
Quarterly Report
10-Q
2025-07-31
Open →
Current Report
8-K
2025-07-07
Open →
Current Report
8-K
2025-06-23
Open →
Current Report
8-K
2025-05-12
Open →
Quarterly Report
10-Q
2025-05-01
Open →
Current Report
8-K
2025-05-01
Open →
Proxy Statement
DEF 14A
2025-04-28
Open →
Other filings (78)
SCHEDULE 13D/A
xslSCHEDULE_13D_X02/primary_doc.xml
2026-05-14
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SC TO-T/A
SC TO-T/A
2026-05-14
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SC TO-T/A
AMENDMENT NO. 2
2026-05-12
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SC TO-T/A
AMENDMENT NO. 1
2026-05-06
Open →
SCHEDULE 13G/A
xslSCHEDULE_13G_X02/primary_doc.xml
2026-05-06
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Insider Transaction
PRIMARY DOCUMENT
2026-05-05
Open →
SCHEDULE 13G
xslSCHEDULE_13G_X02/primary_doc.xml
2026-04-29
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ARS
ARS
2026-04-28
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DEFA14A
DEFA14A
2026-04-28
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SC TO-T
SC TO-T
2026-04-14
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SC TO-C
SCHEDULE TO
2026-04-07
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3
xslF345X06/form3.xml
2026-04-06
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SCHEDULE 13D
xslSCHEDULE_13D_X02/primary_doc.xml
2026-04-06
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SC TO-C
SCHEDULE TO
2026-04-03
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Insider Transaction
PRIMARY DOCUMENT
2026-04-03
Open →
SC TO-C
SC TO-C
2026-03-31
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SC TO-C
SCHEDULE TO
2026-03-31
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SCHEDULE 13G/A
xslSCHEDULE_13G_X02/primary_doc.xml
2026-03-26
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Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
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Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-17
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
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Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
Insider Transaction
PRIMARY DOCUMENT
2026-02-10
Open →
144
xsl144X01/primary_doc.xml
2026-02-09
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SCHEDULE 13G
xslSCHEDULE_13G_X01/primary_doc.xml
2026-02-05
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Insider Transaction
PRIMARY DOCUMENT
2026-02-03
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144
xsl144X01/primary_doc.xml
2026-02-02
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Insider Transaction
PRIMARY DOCUMENT
2025-12-03
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SCHEDULE 13G/A
xslSCHEDULE_13G_X01/primary_doc.xml
2025-11-13
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SCHEDULE 13G
xslSCHEDULE_13G_X01/primary_doc.xml
2025-11-10
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Insider Transaction
PRIMARY DOCUMENT
2025-11-04
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Insider Transaction
PRIMARY DOCUMENT
2025-10-06
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Insider Transaction
PRIMARY DOCUMENT
2025-09-02
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144
xsl144X01/primary_doc.xml
2025-09-02
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SCHEDULE 13D/A
xslSCHEDULE_13D_X01/primary_doc.xml
2025-07-30
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SCHEDULE 13D/A
xslSCHEDULE_13D_X01/primary_doc.xml
2025-07-21
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Insider Transaction
PRIMARY DOCUMENT
2025-07-16
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144
xsl144X01/primary_doc.xml
2025-07-08
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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Insider Transaction
PRIMARY DOCUMENT
2025-06-18
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DEFA14A
DEFA14A
2025-06-02
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Insider Transaction
PRIMARY DOCUMENT
2025-05-20
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144
xsl144X01/primary_doc.xml
2025-05-19
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424B2
424B2
2025-05-08
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FWP
FWP
2025-05-06
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424B2
424B2
2025-05-06
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Insider Transaction
PRIMARY DOCUMENT
2025-05-05
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Insider Transaction
PRIMARY DOCUMENT
2025-05-05
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S-3ASR
S-3ASR
2025-05-01
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ARS
ARS
2025-04-28
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DEFA14A
DEFA14A
2025-04-28
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SCHEDULE 13G/A
xslSCHEDULE_13G_X01/primary_doc.xml
2025-04-17
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Insider Transaction
PRIMARY DOCUMENT
2025-04-03
Open →
Insider Transaction
PRIMARY DOCUMENT
2025-03-10
Open →
3
PRIMARY DOCUMENT
2025-03-10
Open →