Below is a recap of the C-suite developments at America’s highest-revenue-generating companies announced between June 27-July 10, 2026, organized by sector. Titles included in this roundup: CFOs (Chief Financial Officers), COOs (Chief Operating Officers) and CTOs (Chief Technology Officers). We also include CEOs (Chief Executive 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).

Energy

• HF Sinclair (No. 171) appointed Steven Ledbetter President and COO. He previously served as EVP, Commercial of the company. The COO role was previously vacant since previous COO Tim Go was promoted to CEO in 2023, before going on voluntary leave this past February.
  
• Sempra (No. 330) appointed Justin C. Bird CFO, effective on a to‑be‑determined date expected in the third quarter of 2026. He currently serves as CEO of Sempra Infrastructure, the company’s infrastructure growth platform. He succeeds Karen L. Sedgwick, who will become CEO and President of Southern California Gas Company, a Sempra subsidiary.

Financial services and insurance

• Synchrony (No. 197) appointed Florin Arghirescu EVP and CTO and DJ Casto EVP, Chief People and Operations Officer, effective June 29. Arghirescu previously served as SVP, Chief Product Officer. Casto most recently served as EVP and CHRO of the company, and previously held human resources roles at PepsiCo (No. 46). Both succeed Carol Juel, previously the company’s Chief Technology and Operating Officer, who is transitioning to the role of EVP and CEO of the company’s digital platform

Technology

• Kyndryl Holdings (No. 300) appointed Ellen Johnson CFO, effective Aug. 6. She was formerly CFO of IPG, now owned by Omnicom. She succeeds interim CFO Harsh Chugh, who took over the role after previous CFO David Wyshhner left the role following an SEC inquiry and internal review into accounting practices.

Wholesalers

• United Natural Foods (No. 146) appointed Alfredo Luchini CFO, effective Aug. 10, 2026. He currently serves as VP Finance & CFO, HVAC Americas at Carrier and succeeds Giorgio Matteo Tarditi, who was appointed President and Chief Operating Officer.

Source: S&P Global Market Intelligence