Sh2023 Ko David

David Ko

CEO, Calm

David Ko is CEO and serves on the board of directors of Calm, the leading mental health brand with the number one app for sleep, relaxation, and meditation. Prior to joining Calm, Ko was co-founder and CEO of the health tech company Ripple Health Group, which was acquired by Calm in 2022. Previously, he was president, COO, and board member of Rally Health, a digital health company. He was also COO at Zynga, which he helped take public in December 2011. Prior to Zynga, Ko spent 10 years at Yahoo! in senior executive roles. He serves on the executive and technology advisory boards at New York University Stern School of Business, where he helped launch the Andre Koo Tech MBA program and established the NYU Stern Venture Fellows program for aspiring entrepreneurs. (Calm is a 2023 Festival Underwriter)

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