OpenAI loses CRO and multiple senior executives in quick succession ahead of potential IPO

CRO Denise Dresser departed OpenAI on August 13 after eight months, with Wiz president Dali Rajic named her successor. She joins former COO Brad Lightcap, former AGI chief Fidji Simo, and former CMO Kate Rouch in a wave of senior exits following OpenAI's confidential S-1 filing in June 2026. Enterprise revenue exceeded 40% of OpenAI's total as of April 2026.