A Workday logo appears in this illustration taken August 18, 2025. REUTERS/Dado Ruvic/Illustration Purchase Licensing Rights, opens new tabCompaniesAug 13 (Reuters) - Private equity firm Silver Lake is in talks to acquire Workday (WDAY.O), opens new tab, which has a market value ​of about $43 billion, in a deal that would rank among ‌the largest software buyouts in history, according to people familiar with the matter.Silver Lake and the human-resources and financial management software company ...