John Chappell is a Managing Director at Goldman Sachs, based in London. He has been with the firm for over 27 years, holding various leadership roles. Since January 2020, he has served as Managing Director. Prior to this, he was an Executive Director and Market Data Manager, where his expertise in Business Analysis, Vendor Management, and Market Data helped him oversee business operations, desktop products, and exchange controls. John's career at Goldman Sachs showcases his extensive experience in market data management and leadership.