Claude Greengard is a seasoned professional with extensive experience in leadership and technical roles across various organizations. As Managing Director at Two Sigma and previously as a Senior Vice President, Claude has demonstrated strong management capabilities. Claude founded Foss Hill Partners and served as a Visiting Scholar at the Courant Institute of Mathematical Sciences. Notably, Claude held multiple vice president positions at Axioma Inc. and IBM, focusing on research, development, client services, and technical sales. Claude earned a PhD in Mathematics from the University of California, Berkeley and a B.A. in Physics from Wesleyan University.