Exhibit 99.1 KADANT INC. One Technology Park Drive Westford, MA 01886 USA Tel: +1 978-776-2000 www.kadant.com PRESS RELEASE Kadant Reports First Quarter 2026 Results WESTFORD, Mass., May 5, 2026 - Kadant Inc. (NYSE: KAI) reported its financial results for the first quarter ended April 4, 2026. First Quarter Financial Highlights Note: Percent changes above are based on comparison to the prior year period. All references to earnings per share (EPS) are to our EPS as calculated on a diluted basis. Adjusted EPS ...