---
schema_version: "secwatch.filing_event.v1"
accession: "0000105770-26-000041"
form_type: "8-K"
ticker: "WST"
cik: "0000105770"
company_name: "WEST PHARMACEUTICAL SERVICES INC"
filed_at: "2026-03-09T23:59:59+00:00"
generated_at: "2026-05-15T17:28:49.710324+00:00"
event_type: "leadership"
sentiment: "neutral"
materiality_score: 0.7
calibrated_materiality_score: 0.7
confidence: "high"
source: SEC EDGAR
---

# CEO Eric M. Green to retire; West reaffirms 2026 guidance

## Summary
- Eric M. Green informed Board on March 6, 2026 of plan to retire as President, CEO and Chair after successor is hired, expected H2 2026.
- Board is engaging a leading executive recruiting firm to find successor; transition aimed at smooth handoff.
- Company reaffirms 2026 financial guidance issued on February 12, 2026; no change to outlook.
- Green served as CEO since April 2015, Chair since May 2022; TSR ~350% during his 11-year tenure and sales more than doubled.
- Lead Independent Director Robert F. Friel thanked Green for his service and highlighted company's innovation and pandemic response.

## SEC filing metadata
- accession: 0000105770-26-000041
- form_type: 8-K
- ticker: WST
- cik: 0000105770
- company_name: WEST PHARMACEUTICAL SERVICES INC
- filed_at: 2026-03-09T23:59:59+00:00
- event_type: leadership
- sentiment: neutral
- materiality_score: 0.7
- calibrated_materiality_score: 0.7
- confidence: high
- sec_items: 5.02, 7.01, 99.1, 9.01
- EDGAR index: https://www.sec.gov/Archives/edgar/data/105770/000010577026000041/0000105770-26-000041-index.htm
- EDGAR primary document: https://www.sec.gov/Archives/edgar/data/105770/000010577026000041/wst-20260309.htm

## Machine-readable alternates
- HTML: https://secwatch.observer/filing/0000105770-26-000041
- JSON: https://secwatch.observer/filing/0000105770-26-000041.json
- Plain text: https://secwatch.observer/filing/0000105770-26-000041.txt

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