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Regeneron's stock dropped 46% year-to-date in 2025 after mixed COPD trial results raised pipeline concerns.
Regeneron Pharmaceuticals' stock fell in the second quarter of 2025, declining 2.89% in September and 46.36% over the past year, closing at $563.90 on September 26.
The drop followed mixed results from a key COPD trial for its drug itepekimab, with only one of two trials meeting expectations.
Despite broader market recovery from tariff-related losses, investor concerns grew over pipeline uncertainty and clinical outcomes, contributing to underperformance, particularly for major holders like the Baird Chautauqua International and Global Growth Fund.
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Las acciones de Regeneron cayeron un 46% en lo que va de año en 2025 después de que los resultados mixtos de los ensayos de EPOC plantearan preocupaciones sobre la cartera.