Appointed 1 November 2025
Costis is Dean of Columbia Business School, where he is also the David and Lyn Silfen Professor of Business. As a trained technologist he has a focus on enhancing curriculum and learning to meet the demands of the rapidly changing global business landscape and fostering a greater understanding of the role of technological breakthroughs in solving business challenges. His fields of expertise include machine learning and AI, social networks, and quantitative finance. Costis has been with Columbia Business School since 1998, during which time he also has consulted extensively at Goldman Sachs, Bank of America and Mismi Inc, on topics related to algorithmic trading.
Costis earned Ph.D. and Master’s degrees in Electrical Engineering from Stanford University, along with a Bachelor’s degree in Electrical Engineering from Imperial College London.
/sites/pearson-corp/files/2025-10/costis-maglaras.png Non-Executive Director Board of Directors Off 10