Mark Lyons

Executive Vice President, Global Chief Actuary and Head of Portfolio Management

Mark Lyons is Executive Vice President, Global Chief Actuary and Head of Portfolio Management for AIG. In this role, he oversees AIG’s global actuarial and ceded reinsurance functions, and also leads ongoing improvements and repositioning in AIG’s commercial and personal insurance portfolio.

Previously, Mr. Lyons served as AIG’s Chief Financial Officer since December 2018 after returning to AIG in June 2018 as Chief Actuary, General Insurance.

From 2012 to 2018, Mr. Lyons was Executive Vice President, Chief Financial Officer and Treasurer of Arch Capital Group, Ltd. He was previously Chairman and Chief Executive Officer of Arch Worldwide Insurance Group after serving in various capacities within Arch Insurance U.S. operations since 2002. Prior to joining Arch, Mr. Lyons held various positions at Zurich U.S., Berkshire Hathaway and AIG. 

Mr. Lyons holds a B.S. in mathematics from Elizabethtown College, and completed the Executive Program at the Kellogg School of Management of Northwestern University. He is a Member of the American Academy of Actuaries and is an Associate of the Casualty Actuarial Society.