Sotera Health appoints Alton Shader as new CEO, effective May 26, 2026, with leadership transition planned.

Sotera Health announced that Alton Shader, current CEO of Viant Medical, will become its new CEO on May 26, 2026, succeeding Michael B. Petras, Jr., who will transition to Executive Chairman. Shader brings over 20 years of medical industry experience and a strong growth track record, while Petras will remain actively involved in strategic and investor relations roles. This planned leadership change aims to ensure continuity and support Sotera Health's ongoing growth and mission in healthcare sterilization and testing services.