Automatic Data Processing, Inc., also known as ADPยฎ, is a leading global technology company providing human capital management (HCM) solutions. With over 1.1 million clients, ADP is considered a leading provider of HR services such as talent, time management, benefits and payroll.
According to Automatic Data Processing's latest financial reports and stock price the company's current number of shares outstanding is 405,100,000. At the end of 2025 the company had 405,100,000 shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.