Exhibit 99.1 For Immediate Release AVERY DENNISON ANNOUNCES SECOND QUARTER 2026 RESULTS Delivered strong sales, earnings, and cash flow growth ● 2Q26 Reported EPS of $2.67 ○ Adjusted EPS (non-GAAP) of $2.89, up 19.4% ● 2Q26 Net sales of $2.5 billion, up 10.9% ○ Sales change ex. currency (non-GAAP) up 8.9% ○ Organic sales change (non-GAAP) up 7.6% ● FY26 Reported EPS guidance of $9.40 to $9.70 ○ FY26 Adjusted EPS guidance of $10.00 to $10.30 Second Quarter 2026 Results by Segment Materials Group Solutions Gr ...