BIIB Biogen

FY2025 10-K
Filed: Feb 6, 2026
Health Care
Biological Products, (No Diagnostic Substances)SEC EDGAR

Biogen (BIIB) filed its fiscal year 2025 10-K annual report with the SEC on Feb 6, 2026. This page provides AI-powered analysis of the filing, including business overview, management discussion, risk factors, and key financial metrics from XBRL data.

AI Filing Analysis
FY2025 10-K

Business Overview

  • Core business model: Global biopharmaceutical company developing and commercializing therapies primarily for neurology, specialized immunology, and rare diseases
  • New or emphasized segment: Expanded collaboration with Genentech on multiple anti-CD20 therapies including recently approved GAZYVA for lupus nephritis in Oct 2025
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Management Discussion & Analysis

  • No specific revenue or YoY change figures disclosed in provided text
  • No profitability or margin figures mentioned
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Risk Factors

  • Regulatory risk: IRA Medicare Part D redesign caused $90 million 2025 revenue loss, impacting SKYCLARYS and MS portfolio with future pricing enforcement uncertainty
  • Geopolitical risk: Russia-Ukraine conflict may disrupt supply; revenues from Russia, Ukraine, Middle East each <2.0% of total revenue in 2023-2025
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Financial Summary
XBRL

Revenue

$9.9B

Net Income

$1.3B

Net Margin

13.1%

ROE

7.1%

Total Assets

$29.4B

EPS (Diluted)

$8.79

Operating Cash Flow

$2.2B

Source: XBRL data from Biogen FY2025 10-K filing on SEC EDGAR. All figures in USD.

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