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BIOGEN INC. FY 2025 10-K, explained in plain English

BIIB · 10-K for the period ending December 31, 2025, filed February 6, 2026 · Read the original on SEC.gov →

Key financials — as reported

Total revenue$9.9B
Gross margin75.7%
Operating income— not reported
Net income$1.3B
Diluted EPS$8.79
Cash & equivalents— not reported
Total assets$29.4B
Long-term debt$6.3B

Key takeaway

Biogen closed multiple business-development deals in 2025, including the Alcyone acquisition and licensing agreements with Dayra, Vanqua, City Therapeutics and Stoke, each requiring upfront cash payments recorded as R&D expense.

🔒 4 more takeaways in the full analysis

Beneath the surface

The Royalty Pharma funding arrangement provided $200 million in 2025 (with up to $50 million more in 2026) that was recorded as a reduction to R&D expense rather than as debt or equity, effectively flattering reported R&D costs and net income.

🔒 4 more insights a headline reader would miss

This is the free preview. The full analysis explains every line item above and includes 8 more findings — plus insider trades, activist stakes, and 8-K events for BIIB.

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