- Chair, Financial Industry Regulatory Authority (FINRA)
- Director, HSBC Holdings plc
- Director, Compass
- Director, Atlas Crest Investment Corp.
- Director, Irish Arts Center
- Former Co-Chief Executive Officer, Bridgewater Associates, LP
- Former Controller, Treasurer, Global Head of Technology and Operations, and Management Committee member, Morgan Stanley
- Former Head of Global Technology, Operations and Product Control, Credit Suisse First Boston