Executive Leadership

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Petra Freddi

Managing Director, Europe and & Middle East, Milken Institute
Petra Freddi serves as managing director for Europe and the Middle East at the Milken Institute. Over the past decade, she has played a pivotal role in expanding the Institute’s global footprint—initially in the Asia-Pacific region, followed by Europe, and most recently in the Middle East.
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A smiling light-skinned woman named Emily Musil with long brunette hair, wearing a green blazer, and standing in a room with dark wood details.

Emily Musil, PhD

Managing Director, Environmental and Social Innovation team, Milken Institute Strategic Philanthropy
Emily Musil, PhD, is managing director at Milken Institute Strategic Philanthropy, where she leads the Environmental and Social Innovation portfolio.
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Perry Wong

Managing Director and Senior Fellow, Milken Institute International
Perry Wong is managing director, research at the Milken Institute. He specializes in analyzing the structure, industry mix, development, and public policies of a regional economy.
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Marjorie Josaphat

Executive Director, Human Resources
Marjorie Josaphat is the head of human resources for the Milken Institute. 
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John Hunter

Chief Financial Officer and Chief Operating Officer
John Hunter the Chief Operating Officer and Chief Financial Officer for the Milken Institute.
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A smiling light-skinned female named Cara Altimus with shoulder length dark brown hair wearing a vibrant blue shirt and red necklace, standing with her arms crossed against an ambiguous outdoor background.

Cara Altimus, PhD

Managing Director, Science Philanthropy Accelerator for Research and Collaboration (SPARC) team, Milken Institute Strategic Philanthropy
Cara Altimus, PhD is a managing director on the Science Philanthropy Accelerator for Research and Collaboration (SPARC) team at Milken Institute Strategic Philanthropy, leading the science and health innovation portfolio. A PhD neuroscientist, Altimus advises individual philanthropists and foundations on the state of research for various areas including neurodegenerative disease and mental health, identifying opportunities where their capital can make the biggest impact.
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Jeff Valliere

Executive Vice President and Chief Strategy Officer
Jeff Valliere oversees the development of fully integrated, strategic initiatives that support the mission, vision, and values of the Milken Institute.
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Sarah Sandler

Chief Growth Officer and Executive Vice President
As Chief Growth Officer and Executive Vice President of the Milken Institute, Sarah Sandler drives the organization’s global expansion strategy, delivering measurable results across new markets, driving revenue growth, and stakeholder engagement.
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Martha Mazzone

General Counsel and Head of Technology
Martha (Marty) Mazzone is head of technology and general counsel for the Milken Institute.  Previously serving as general counsel and chief operating officer of the Milken Center for Advancing the American Dream.