Exhibit 99.1 News Release Pentair Reports Strong Fourth Quarter and Full Year 2025 Results Reconciliations of GAAP to Non-GAAP measures are in the attached financial tables. LONDON, United Kingdom — February 3, 2026 — Pentair plc (NYSE: PNR) today announced fourth quarter 2025 sales of $1,021 million. Sales were up 5 percent compared to sales for the same period last year. Excluding currency translation, acquisitions and divestitures, core sales grew 4 percent in the fourth quarter. Fourth quarter 2025 earn ...