Exhibit 99.1 STERIS Announces Financial Results for Fiscal 2026 Second Quarter DUBLIN, IRELAND - (November 5, 2025) - STERIS plc (NYSE: STE) ("STERIS" or the "Company") today announced financial results for its fiscal 2026 second quarter ended September 30, 2025. Total revenue from continuing operations for the second quarter of fiscal 2026 increased 10% to $1.5 billion compared with$1.3 billion in the second quarter of fiscal 2025. Constant currency organic revenue growth from continuing operations for th ...