How’s your battery? Calm CEO David Ko on normalizing mental health at work

David Ko, CEO of the sleep and meditation app Calm and author of the book Recharge, shares his leadership journey from investment banking to purpose-driven leadership. Since 2022, he’s guided Calm’s work in over 190 countries, supporting millions of people seeking to improve their wellbeing. Ko describes “the battery check,” a simple framework for starting conversations about mental health, describes how burnout happens when leaders don’t explain the “why” behind decisions, and shares some candid personal anecdotes. The conversation is hosted by Professor Sameer Srivastava and led by UC Berkeley Haas students Avanika Lal and Esa Tilija, both MBA 26. The joint Dean’s Speaker Series and Berkeley Center for Workplace Culture and Innovation event took place at the Haas School of Business on September 30, 2025.

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