Amgen issues $4.0 billion of senior notes in four tranches due 2031 to 2056

Amgen sold $4.0 billion of senior unsecured notes on February 17, 2026, split across four maturities from 2031 to 2056. The coupons range from 4.200% on the 2031 notes to 5.650% on the 2056 notes, and the longest tranche carries the highest coupon. The sale adds to Amgen's debt load, and the rates show what investment-grade buyers demanded for long-dated paper in early 2026.

• Total principal $4.0 billion, issued February 17, 2026
• 4.200% notes due 2031: $1.0 billion
• 4.850% notes due 2036: $1.75 billion
• 5.500% notes due 2046: $500 million; 5.650% notes due 2056: $750 million
• Coupons paid semi-annually on February 19 and August 19