Steven G. Mandis

Steven G. Mandis is an adjunct professor in the finance and economics department at Columbia Business School. He also teaches at Columbia’s Masters of Sports Management Program.

Mandis has written several award-winning books: What Happened to Goldman Sachs, The Real Madrid Way, What Happened to Serie A, and What Happened to the USMNT. His Real Madrid book received endorsement quotes from Billy Beane, Sir Alex Ferguson and David Stern and was the subject of a BBC World Radio documentary.

Mandis worked at Goldman Sachs in the investment banking, private equity, and proprietary trading areas. Five years after Goldman's IPO, he left Goldman and cofounded a multibillion-dollar global alternative asset management firm that was a trading and investment banking client of Goldman's. He later sold his stake to his partners and an affiliate of Neuberger Berman. During the financial crisis, Mandis was a senior adviser to McKinsey & Company before becoming chief of staff to the president and COO of Citigroup and serving on executive, management, and risk committees at the firm. After the U.S. Treasury completed the sale of its shares in Citigroup at a profit for taxpayers, he left Citigroup and invested in Rapid Advance, a leading provider of capital for small businesses, which was sold a few years later to Rockbridge Growth Equity, co-founded by the principal owner of Quicken Loans and NBA's Cleveland Cavaliers. Currently, Mandis is Chairman and Senior Partner of Kalamata Asset Management.

Mandis holds a BA from The University of Chicago and an MA, MPhil and PhD from Columbia University. Mandis was a two-sport varsity athlete in college and now competes in triathlons, including the Ironman World Championships in Kailua-Kona, Hawaii; Ironman 70.3 World Championships; and Escape from Alcatraz.

He was awarded the Ellis Island Medal of Honor, given to children of immigrants who exemplify a life dedicated to community service. In addition, Mandis was granted an honorary commission and title of Kentucky Colonel from the governor of Kentucky and honorary title of Arkansas Traveler from the governor of Arkansas. He was invited to present how sports can be an enabler of social inclusion at the 57th Session of the Commission for Social Development at the United Nations.