West Pharmaceutical Services, Inc.

West Pharmaceutical Services filed an 8-K/A on May 20, 2026 amending its May 11 disclosure of a material cybersecurity incident. The company detected an intrusion on May 4, 2026 and determined materiality on May 7, 2026. An unauthorized party exfiltrated certain data and encrypted certain systems. The company took systems offline globally, notified law enforcement, and engaged external cyber-forensic experts. Core enterprise and manufacturing systems have been restored; no unauthorized activity has been observed since May 5, 2026.