Below is a recap of the C-suite developments at America’s highest-revenue-generating companies announced between May 10-16, 2025, organized by sector. Titles included in this roundup: CEOs (Chief Executive Officers) and CFOs (Chief Financial Officers). We also include COOs (Chief Operating Officers), CTOs (Chief Technology Officers), CIOs (Chief Information Officers), CMOs (Chief Marketing Officers), CHROs (Chief Human Resources Officers), Chief People Officers, and Chief Customer Officers when there are Power Moves within the Fortune 500 announced pertaining to those roles.

For daily updates, subscribe to Fortune’s weekday newsletters, including CEO Daily, CFO Daily, and MPW Daily, as well as Next to Lead (weekly Mondays) and CIO Intelligence (weekly Wednesdays).

Health care

• UnitedHealth Group (No. 4) announced that CEO Andrew Witty stepped down from the role for personal reasons, effective immediately. Board Chairman and former CEO Stephen Hemsley returned to the role and will remain Chairman. Read more: UnitedHealth Group’s CEO steps down as the insurance giant pulls guidance for 2025
  
  
• Intuitive Surgical (No. 497) appointed David J. Rosa as CEO, effective July 1. Rosa, who has been with the company since 1996 and was its ninth employee, currently serves as President. Rosa will succeed Gary S. Guthart, who will transition to Executive Chair of the Board.

Technology

• Cisco (No. 74) appointed Mark Patterson as its next CFO, effective July 7. Patterson currently serves as EVP and Chief Strategy Officer and will succeed Scott Herren, who will retire.

Source: S&P Global Market Intelligence