Susan Wagner is a cofounder and director of asset manager BlackRock, which she started with Larry Fink and others in 1988. She cofounded the company at age 26 and went on to serve as chief operating officer and vice chairman. Wagner oversaw BlackRock's 2009 merger with Barclay's Global Investors, which transformed the firm into the world's largest asset manager. Prior to founding BlackRock, Wagner worked as a vice president of the mortgage finance group at Lehman Brothers. She retired in 2012 but remains on BlackRock's board and also serves as a director of Apple, Swiss Re, Color Health and Samsara.