EXHIBIT 99.1 WD-40 Company Reports Fourth Quarter and Fiscal Year 2026 Financial Results ~ Net Sales of Maintenance Products Grew 9% in the Fourth Quarter and 13% for the Fiscal Year ~ ~ On a Constant Currency Basis, Net Sales of Maintenance Products Grew 8% in the Fourth Quarter and 9% for the Fiscal Year Aligning with Long-Term Growth Targets ~ ~ Fiscal Year 2026 Results In Line with Guidance Across Key Financial Metrics ~ SAN DIEGO — Oct. 21, 2026 — WD-40 Company (Nasdaq: WDFC), a global marketing organi ...