Amgen Valuation Debate After TEZSPIRE Data and Raised 2026 Guidance
Amgen’s shares are viewed through a valuation debate as investors react to positive TEZSPIRE data, raised 2026 guidance, and regulatory questions around Tavneos. The summary cites 1-year total shareholder return of 60.34% and 5-year total shareholder return of 134.25%. Amgen last closed at $442.84 versus a stated narrative fair value of $359.98.