Exhibit 99.1 TriNet Announces Fourth Quarter, Fiscal Year 2025 Results, and Full Year 2026 Guidance TriNet Stock Repurchase Program Authorized up to $400 million DUBLIN, Calif. — February 12, 2026 — TriNet Group, Inc. (NYSE: TNET), a leading provider of comprehensive and flexible human capital management (HCM) solutions for small and medium-size businesses (SMBs), today announced financial results for the fourth quarter and full year ended December 31, 2025. The fourth quarter and full year highlights below ...