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Amgen Inc. (AMGN), headquartered in Thousand Oaks, California, discovers, develops, manufactures, and delivers human therapeutics. With a market cap of $182.4 billion, the company focuses on human therapeutics and concentrates on innovating novel medicines based on cellular and molecular biology.
Shares of this drug manufacturing giant have underperformed the broader market over the past year. AMGN has gained 17.1% over this time frame, while the broader S&P 500 Index ($SPX) has rallied nearly 28.3%. In 2026, AMGN stock is up 3.3%, compared to the SPX’s 4.2% rise on a YTD basis.