West Pharmaceutical provides update on May 4 cyberattack; fully operational, no material financial impact

WEST PHARMACEUTICAL SERVICES INC

Cybersecurity incident detected on May 4, 2026 involved data exfiltration and system encryption.
Company activated response, took systems offline globally; core enterprise and manufacturing systems restored.
All manufacturing, supply chain, and commercial sites globally are now fully operational.
No unauthorized access observed since May 5; investigation continues but incident not expected to materially affect Q2 or FY 2026 guidance.

Key facts

Extracted from this filing and checked against the source text.

Cybersecurity Incidents SEC 8-K Item 1.05 confidence 0.9

WEST PHARMACEUTICAL SERVICES INC disclosed a cybersecurity incident: data exfiltrated by unauthorized party and systems encrypted. Impact: no material impact on financial guidance; fully operational. Company determined it not material. Discovered 2026-05-04.

Nature: data exfiltrated by unauthorized party and systems encrypted
Impact: no material impact on financial guidance; fully operational
Materiality: not material
Discovery: 2026-05-04

Exact text from the filing

Based on the investigation to date and information currently available, the Company believes that the incident has not had, and is not reasonably likely to have, a material impact on the Company’s 2026 second-quarter and full-year financial guidance.

View on SEC.gov

Browse all cybersecurity incidents →

WEST PHARMACEUTICAL SERVICES INC filing history →

Source: SEC EDGAR

accession 0000105770-26-000077

view filing index on sec.gov

view primary document

Machine-readable: JSON · Markdown · Plain text

This headline and bullets were generated automatically by deepseek-v4-flash:cloud@v2 from the public filing. Read the source on SEC.gov before relying on any specific claim. Not investment advice. See methodology for how this pipeline works.