Below is a recap of the C-suite developments at America’s highest-revenue-generating companies announced between June 19-26, 2026, organized by sector. Titles included in this roundup: CFOs (Chief Financial Officers) and COOs (Chief Operating Officers). We also include CEOs (Chief Executive 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.

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Financials

• Reinsurance Group of America (No. 193) appointed Laura Cockrill CFO, effective immediately. Cockrill most recently served as Chief Strategy Officer and a member of the company’s executive committee, and she succeeds Axel André, who will leave the company as of July 17 to become Partner and CFO at TPG (No. 715 on the Fortune 1000).

Health care

• Pfizer (No. 73) announced that CFO Dave Denton will leave the company on Aug. 15 to become the next CFO of Nike (No. 99). Denton previously served as CFO of Lowe’s (No. 52) and CVS Health (No. 6). Cecile Guegan, Pfizer’s SVP, Finance, Global Biopharmaceutical Business, will serve as interim CFO of the company as the company searches for a permanent successor. Denton will succeed Matthew Friend, who has been with Nike for 17 years.

Retailing

• Best Buy (No. 113) announced that Matt Bilunas will step down as CFO, effective July 31, after seven years in the role. CEO Corie Barry, who is leaving the role on Oct. 31 and previously served as CFO, will provide financial guidance “as needed,” the company said, amid a search for a permanent successor.

Technology

• CACI International (No. 459) appointed Dave Young EVP and COO. Young most recently served as VP and General Manager National Security Space of Lockheed Martin (No. 61). The company’s last COO was John Mengucci, who was promoted to CEO in 2019. 

Source: S&P Global Market Intelligence