Exhibit 99.1 INVESTOR CONTACT Chad Bennet chad.bennett@teradata.com MEDIA CONTACT Jennifer Donahu jennifer.donahue@teradata.com Teradata Reports First Quarter 2026 Financial Results SAN DIEGO – May 5, 2026 -- Teradata (NYSE: TDC) today announced its first quarter 2026 financial results. "Teradata delivered a strong first quarter, outperforming on key growth and performance metrics as we enter 2026. Enterprises are discovering that winning with AI requires context, governed data, codified industry knowledge, ...