Amgen stock last trades at USD 418.60 on September 28, 2026
Published on 09/28/2026 at 19:12 | Editorial responsibility: Rafael Müller, Editor-in-Chief AD HOC NEWS
Trading session
Amgen stock last traded at USD 418.60 on Nasdaq on September 28, 2026, at 5:11:53 p.m. UTC. The stock was up 0.96 percent from the prior close of USD 414.61.
September developments
In a September 14, 2026 release, Amgen said the U.S. Food and Drug Administration approved an update to the IMDELLTRA prescribing information. The change reduced recommended monitoring for the first two doses from 22 to 24 hours to 6 to 8 hours in an appropriate healthcare setting, with a follow-up assessment the next day.
In an earlier September 8, 2026 release, Amgen reported that its Phase 3 DeLLphi-305 study met its primary endpoint at a prespecified interim analysis. The company said IMDELLTRA in combination with AstraZeneca's Imfinzi demonstrated a statistically significant improvement in overall survival compared with Imfinzi alone; the study also met secondary progression-free survival and objective-response-rate endpoints. The trial randomized 563 patients.
