Amgen shares declined 2.4% following first-quarter earnings, as steady top-line growth from key products appeared insufficient to markedly impress investors amid ongoing patent headwinds and no significant upward revision to the company's outlook.
Amgen reported strong Q3 2025 earnings with a 12% year-over-year revenue increase to $9.6 billion, driven by robust volume growth across all therapeutic areas and significant pipeline advancements.