MetLife has appointed Adrienne O’Neill as its new executive vice-president and chief accounting officer (CAO), effective 2 September.  

O’Neill will oversee the company’s accounting operations including corporate accounting, reporting activities, and financial planning and analysis. 

She will be tasked with the dissemination of the company’s financial statements in accordance with established standards and regulations, the insurer said. 

She will report to John McCallion, MetLife executive vice-president, chief financial officer (CFO) and head of MetLife Investment Management. 

McCallion said: “We are excited to bring on board Adrienne’s deep expertise in accounting, financial planning and financial reporting, as well as her proven and broad leadership experience across an array of finance functions.  

“She will be a critical partner in evaluating the current financial landscape and helping our leadership team to anticipate what is next, enabling the successful execution of our New Frontier strategy.” 

Prior to her new role at MetLife, O’Neill’s career included a series of financial positions at Manulife Financial Corporation.  

Her 18-year tenure at Manulife included roles such as CFO for Asia, global controller and group CAO, and global head of investor relations. 

O’Neill steps into the position previously filled on an interim basis by Toby Srihiran Brown since March 2025.  

Brown will resume his role as executive vice-president and global head of reinsurance. 

O’Neill said: “I am thrilled to be joining MetLife at such an exciting time in the execution of its strategy and look forward to partnering across the leadership team to continue to drive excellence in the finance function and further enable the company’s long-term growth.” 

Recently, MetLife and General Atlantic launched Chariot Reinsurance, a Bermuda-based Class E life and annuity reinsurance company.