Risk factors

Regeneron Pharmaceuticals (REGN) risk factors

Item 1A of every Regeneron Pharmaceuticals, Inc. 10-K on file, and what changed from one year to the next. Readings are automated and can be wrong; check the filing for the exact wording.

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  • FY2025 10-K risk factors
    48 risks8 new4 dropped22 reworded

    Regeneron faces increasing reliance on Eylea HD and Dupixent with Sanofi.

    Filed Feb 04, 2026
  • FY2024 10-K risk factors
    44 risks

    Regeneron's risk profile is dominated by heavy revenue concentration in EYLEA, EYLEA HD, and Dupixent.

    Filed Feb 05, 2025