Who we are

Endowment-style investing is in our DNA

DNA sequence

Our history

GEM was founded in 2007 by now-retired partner Thruston Morton, the former Chief Investment Officer at the Duke University Management Company (DUMAC). He was soon joined by Hugh Wrigley (also from DUMAC and now retired) and Stephanie Lynch (CIO at The Duke Endowment, the family foundation of James B Duke), who now serves as the firm’s Managing Partner. Bringing principal investing and endowment management experience together, our mission was and remains to make available to other institutional and family office investors the investment management style of the leading endowments.

As a leading Outsourced Chief Investment Office (OCIO), we deliver a sophisticated, endowment-style investment program to investors with a multigenerational horizon. We combine disciplined portfolio management with sound governance and a boutique mindset — integrating with our clients’ organizations as part of their in-house teams.

As client needs have evolved and broadened, we’ve leveraged our multi-asset investing capabilities into tailored solutions for other types of long-term investors. GEM clients access our underwriting process, manager relationships, and integrated partnership via comprehensive OCIO engagements, targeted alternative investments programs, and impact-focused strategies.

We are employee-owned and independent, structurally aligned with our clients’ long-term objectives. No matter the mandate, we look to generate superior risk-adjusted returns over the long term by accessing high-quality investment opportunities, combined with an ethos of partnership built to endure.1

What is endowment-style investing?

Pioneered by David Swensen and the Yale Investments Office in the mid-‘80s, endowment-style investing is rooted in the belief that perpetual investors have distinct opportunities and advantages relative to traditional investors. Instead of relying solely on conventional asset types in a standard portfolio structure, the leading endowments focus on broad diversification across asset classes, with allocations to alternatives such as private equity, venture capital, hedge funds, and real estate, where skill in differentiated manager selection can generate alpha in less efficient markets.

Our team

Our team has extensive experience at leading endowments, private equity firms, hedge funds, and asset managers across the country. GEM’s senior leaders, many of whom were trained as direct investors, operate with a principal mindset. We bring to bear the full weight of our team’s expertise on behalf of each client to ensure exceptional results and partnership.

Flock of birds

Diversity, equity, and inclusion (DEI)

At GEM, we work together to build a diverse and inclusive organization that reflects the range and richness of our experiences and identities. We take a systematic approach to fostering DEI, with a focus on creating opportunity and driving change across the following areas: our firm, our portfolio, and our community and industry.

Our approach to DEI

Culture and careers

Learn what it’s like to work with us and view our current job openings.

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Recent Insights

The Case for Small Buyouts: Backing Managers Early in the Lower Middle Market

We believe the lower middle market remains one of private equity’s most durable and least crowded sources of outperformance. In our latest research report, we examine the data behind our thesis and explain why we think disciplined manager selection creates a distinct edge.

2026 Outlook Mid-Year Update: The Second Movement

In this mid-year follow-up to our 2026 Outlook, we revisit the four themes shaping this year's markets—AI's debt-financed buildout, accelerating private market access, biotech's continued momentum, and a slowly healing real estate market—and take stock of what's playing out as anticipated and what isn’t.

GEM 2026 Investment Policy Review

Three years after our last Investment Policy review, the regime has shifted: higher rates, sticky inflation, and a positive stock-bond correlation. In this conversation, GEM’s CIO Matt Bank revisits not just capital market assumptions but the framework itself, from methodology to implementation and risk management.

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1 Returns are not guaranteed.