FERGUS FALLS, Minn.–(BUSINESS WIRE)–Otter Tail Corporation (Nasdaq: OTTR) today announced financial results for the quarter ended March 31, 2026. SUMMARY Produced diluted earnings per share of $1.73 in the first quarter of 2026. Return on equity of 15% over the trailing twelve months. Affirmed 2026 diluted earnings per share guidance range of $5.22 to $5.62. CEO OVERVIEW “We are pleased with our first quarter financial results and are well positioned to achieve our financial objectives for th