David Ko is the CEO and serves on the Board of Directors of Calm, a leading mental health brand with the #1 app for sleep, relaxation and meditation. Prior to joining Calm, David was the co-founder and CEO of the health tech company Ripple Health Group. The company was acquired by Calm in 2022 to help build out its mental health capabilities. Before founding his own company, David was a Board Member, President and COO of Rally Health, a digital health company. Rally’s solutions are available to nearly 55 million people through health plans, care providers, and more than 200,000 employers. Rally was acquired by UnitedHealth Group in 2017. David was also the COO at Zynga, which he helped take public in December 2011. Prior to his work at Zynga, he spent 10 years at Yahoo! in various senior executive roles, including SVP of Yahoo!’s audience, mobile, and local businesses. He also serves on a variety of boards at his alma mater, New York University Stern School of Business, including the Stern Executive Board and Technology advisory board. Through his involvement, he helped launch the Andre Koo Tech MBA program, and in 2016 he established the NYU Stern Venture Fellows program for aspiring entrepreneurs.
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Leadership
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Centers and Practice Areas
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Asia Center
Extends the reach and impact of the Milken Institute to the Asia-Pacific region
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Center for Financial Markets
Conducts research and constructs programs designed to facilitate smooth and efficient operation of financial markets
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Center for the Future of Aging
Advances healthy longevity and financial security for all through high-impact policies, research, convenings, and multisector partnerships.
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Center for Public Health
Develops research, programs, and initiatives designed to envision and activate sustainable solutions leading to better health for individuals and communities worldwide.
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Center for Regional Economics and California Center
Analyzes the dynamics that drive job creation and promote industry expansion
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Center for Strategic Philanthropy
Empowers philanthropists to effectively address some of the world's most urgent problems
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FasterCures
Clears roadblocks that prevent medical breakthroughs from reaching patients sooner
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Financial Innovations Labs
Addressing society's greatest challenges through a financial lens
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Global Market Development
Working with government partners in emerging and developing economies to build strong, domestic financial markets.
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Milken Center for Advancing the American Dream
Anyone with a dream should have the opportunity to make it come true—through determination and an economic system that works for all
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Research Department
Addressing global policy issues on Health Economics, International Finance, and Regional Economics
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Government and Policy Engagement
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