David G. Kabiller, CFA, is an American billionaire investor and the co-founder, Managing Principal, and Head of Business Development at AQR Capital Management, a global quantitative hedge fund. Born in Chicago, Illinois, in 1963, his background is rooted in elite academia and competitive sports.

He earned both a B.A. in Economics and an MBA from Northwestern University (Kellogg School of Management). Crucially, he received an athletic scholarship to play tennis at Northwestern and was named to the Big Ten's Academic All-Conference team. His career began in finance at Goldman Sachs & Co., where he established and maintained relationships with many of the largest pension and endowment funds, positioning him to co-found one of the world's most influential quantitative firms.

David Kabiller co-founded AQR Capital Management (AQR) in 1998 with Cliff Asness, John M. Liew, and Robert Krail. His role as Head of Business Development was instrumental in AQR's massive growth. He led the firm's international expansion into Europe and Asia and pioneered its introduction of mutual funds, broadening AQR's client base beyond traditional institutional investors.

AQR's success is built on the academic rigor of its quantitative strategies (factor investing) and its deep commitment to research. Kabiller is famous for co-authoring the highly acclaimed paper 'Buffett's Alpha', which received the 2018 Graham and Dodd Award, demonstrating the firm's ability to analyze even the most successful traditional investors through a quantitative lens. He has actively focused on fostering talent through programs like the QUANTA Academy and the NU for Life Program at Northwestern.

David Kabiller is a major philanthropist, focusing his giving on education, science, and athlete career development. He is a member of Northwestern University's Board of Trustees and established the NU for Life Program, providing mentoring and career development for Northwestern student-athletes.

His structural contribution is tied to his role in pioneering and popularizing quantitative investment strategies, which brought systematic, evidence-based approaches to the global financial market. His commitment to nanoscience and nanomedicine through his endowed prize is a significant investment in future medical technology.

David Kabiller maintains the highly professional, disciplined style of a quantitative finance executive. His attire is consistently formal and high-quality, favoring tailored suits. His aesthetic is one of stability and focused competence, reflecting his dual background in elite academia and high-stakes finance.

His luxury is the immense security and financial reward derived from his multi-billion dollar fortune. His life is defined by his commitment to translating academic theory into massive commercial success and his dedication to fostering talent and supporting scientific research.