BIOGEN INC.
For the period ended Dec 31, 2025. Filed Feb 6, 2026.
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FY2025 · Filed Feb 6, 2026
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Item 9B. Other Information
TRADING ARRANGEMENTS
From time to time, our officers (as defined in Rule 16a-1(f)) and directors may enter into, amend or terminate Rule 10b5-1 ornon-Rule 10b5-1 trading arrangements (as each such term is defined in Item 408 of Regulation S-K). During the fourth quarter of 2025 there were no trading arrangements for the purchase or sale of our securities entered into, amended or terminated by our officers and directors.
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