Mortimer (“Tim”) J. Buckley served as the Chairman and Chief Executive Officer of Vanguard. Previously, he was Vanguard's Chief Investment Officer, overseeing the company's internally managed stock, bond and money market portfolios as well as its investment research and methodology. Mr. Buckley joined Vanguard in 1991 and has held a number of senior leadership positions, including Chief Information Officer from 2001 to 2006 and head of the Retail Investor Group from 2006 to 2012.

Outside of Vanguard, he served as Chairman of the Board of Children's Hospital of Philadelphia from 2011 to 2017.