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Firm Management

GMO’s management team leads our efforts to help our clients achieve their investment goals and fulfill their missions and objectives.


The team averages over 25 years of industry experience, drawing on that experience to foster an environment that values individual ideas and contributions as well as a culture that encourages open debate and collaboration. Good ideas come from everyone within our firm and help us deliver excellent investment performance and client outcomes.

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Scott Hayward

Chief Executive Officer

Mr. Hayward is the Chief Executive Officer of GMO and a member of the GMO Board of Directors. Prior to joining GMO in 2017, he served as the Chief Executive Officer and Chairman of Quantitative Management Associates LLC (QMA) for 11 years. Previously, he was the Head of Client Relations at QMA and Jennison Associates (both affiliates of Prudential Financial, Inc.). Prior to joining QMA and Jennison Associates in 2003, Mr. Hayward served as Managing Director, Head of Institutional Client Services and Marketing at J.P. Morgan Asset Management. Prior to that, he was a Vice President and served in a variety of roles in the investment bank, private bank, and corporate divisions at J.P. Morgan & Co. Mr. Hayward earned his BA in Political Science from Boston College.

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Jeremy Grantham

Long-Term Investment Strategist, Co-Founder

Mr. Grantham co-founded GMO in 1977 and is a member of GMO’s Asset Allocation team, serving as the firm’s chief investment strategist. He is a member of the GMO Board of Directors and has also served on the investment boards of several non-profit organizations. Prior to GMO’s founding, Mr. Grantham was co-founder of Batterymarch Financial Management in 1969 where he recommended commercial indexing in 1971, one of several claims to being first. He began his investment career as an economist with Royal Dutch Shell. Mr. Grantham earned his undergraduate degree from the University of Sheffield (U.K.) and an M.B.A. from Harvard Business School. He is a member of the Academy of Arts and Sciences, holds a CBE from the UK and is a recipient of the Carnegie Medal for Philanthropy.

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Alex Bark

Head of Global Client Relations

Mr. Bark is the head of GMO’s Global Client Relations team. Previously at GMO, he led the client relations teams outside the U.S. from London. Prior to joining GMO in 2010, he spent eight years at Goldman Sachs Asset Management after an early career serving in the Royal Navy. Mr. Bark earned his BSc in Economics and Politics from the University of Bristol and is a CFA charterholder. 

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Jon Feigelson

General Counsel

Mr. Feigelson is GMO’s General Counsel. Prior to joining GMO, he served as General Counsel and head of Human Resources for iCapital Network, Inc. Previously, he was an advisor to Aspiration Partners and Bernstein, Litowitz, Berger, and Grossman, as well as General Counsel for Artivest. Prior to that, Mr. Feigelson was Senior Managing Director, General Counsel, Head of Regulatory Affairs, and Director of Corporate Governance for TIAA-CREF, Managing Director and General Counsel for ABN AMRO Bank’s North American Wholesale and Investment Bank, and Vice President and Global Director of Equity Derivatives Compliance for Goldman Sachs & Co. Mr. Feigelson earned his B.A. in American History from Harvard University, his Master’s in International Relations from The London School of Economics, and his J.D. from Columbia University.

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Ben Inker

Head of Asset Allocation

Mr. Inker is head of GMO’s Asset Allocation team and a member of the GMO Board of Directors. He joined GMO in 1992 following the completion of his B.A. in Economics from Yale University.  In his years at GMO, Mr. Inker has served as an analyst for the Quantitative Equity and Asset Allocation teams, as a portfolio manager of several equity and asset allocation portfolios, as co-head of International Quantitative Equities, and as CIO of Quantitative Developed Equities.  He is a CFA charterholder.

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Andy Martin

Head of Investment Teams

Mr. Martin is the Head of Investment Teams at GMO. Prior to joining GMO in 2017, he worked at Cambridge Associates for more than 10 years, most recently as Global Head of Hedge Fund Research and Managing Director in the Non-Profit Practice. Previously he held leadership roles within equity research at Credit Suisse First Boston and Donaldson, Lufkin, & Jenrette, Inc. Mr. Martin earned his BA in International Studies and Political Science from Yale University and his MBA from the Amos Tuck School of Business Administration at Dartmouth College.

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Jean-Pierre Mittaz

Chief Operating Officer

Mr. Mittaz is GMO’s Chief Operating Officer responsible globally for IT, Operations, Fund Treasury & Tax, Risk Monitoring, and Finance. Prior to joining GMO in 2010, Mr. Mittaz held numerous positions at UBS Global Asset Management most recently as their chief operating officer; he was also global head of Operations and IT as well as the global head of operational risk management. Previously, Mr. Mittaz was the chief operating officer of global fixed income and currency at Goldman Sachs Asset Management. Mr. Mittaz received his Master’s degree and Ph.D. in Finance from the University of Zurich. He is a CFA charterholder.

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Greg Pottle

Chief Compliance Officer

Mr. Pottle is GMO’s Chief Compliance Officer. Previously at GMO, he has served as General Counsel on an interim basis and as legal counsel. Prior to joining GMO in 2000, he was a manager in the SEC registration group of Scudder Kemper Investments. Previously he was a legal product manager with Fidelity Investments. Mr. Pottle earned his B.A. in Political Science from Hobart College and his J.D. from Suffolk University.

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Nicole Zimmerman

Head of Human Resources

Ms. Zimmerman is the head of global human resources. Prior to joining GMO in 2013, she held numerous positions at BNY Mellon Asset Management most recently as managing director and previously as vice president. Ms. Zimmerman earned her B.S. in Business Administration from Bentley College.