---
schema_version: "secwatch.filing_event.v1"
accession: "0000318154-26-000048"
form_type: "8-K"
ticker: "AMGN"
cik: "0000318154"
company_name: "AMGEN INC"
filed_at: "2026-04-22T23:59:59+00:00"
generated_at: "2026-05-15T04:57:28.880836+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.5
calibrated_materiality_score: 0.5
confidence: "high"
source: SEC EDGAR
---

# Amgen EVP and CTO David M. Reese to retire June 30, 2026; roles redistributed

## Summary
- David M. Reese retires as EVP and CTO effective June 30, 2026; responsibilities split among Bradner, Gordon, Griffith starting June 1.
- James Bradner becomes EVP of R&D, AI and Data; Sean Bruich named SVP and CTO.
- Murdo Gordon takes EVP of Amgen Global Markets and Policy; Paul Burton remains Chief Medical Officer.
- Reese joined Amgen in 2005, led R&D from 2018-2023, and served as inaugural CTO.

## SEC filing metadata
- accession: 0000318154-26-000048
- form_type: 8-K
- ticker: AMGN
- cik: 0000318154
- company_name: AMGEN INC
- filed_at: 2026-04-22T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.5
- calibrated_materiality_score: 0.5
- confidence: high
- sec_items: 5.02, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/318154/000031815426000048/0000318154-26-000048-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/318154/000031815426000048/amgn-20260422.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000318154-26-000048
- JSON: https://secwatch.observer/filing/0000318154-26-000048.json
- Plain text: https://secwatch.observer/filing/0000318154-26-000048.txt

This AI-assisted summary is a reading aid. Review the linked SEC EDGAR filing before relying on any specific claim.