OpenAI C-Suite Reshuffle: COO Out, AGI CEO on Medical Leave Ahead of IPO

OpenAI is navigating a significant leadership transition just as it prepares for a potential Q4 2026 IPO.

Brad Lightcap, the company's long-time Chief Operating Officer, has stepped out of the role and into a "special projects" position reporting directly to Sam Altman. His operational responsibilities are being absorbed by Denise Dresser, OpenAI's newly appointed Chief Revenue Officer.

Fidji Simo, who holds the title of CEO of AGI Development and leads the product organization, is on indefinite medical leave due to a neuroimmune condition. Co-founder and President Greg Brockman is covering product management during her absence.

Kate Rouch, Chief Marketing Officer, is stepping down to focus on her cancer recovery.

Three key executives sidelined simultaneously, right as OpenAI works to convince public market investors it is ready to list. The company was valued at $852 billion following a $122 billion funding round and is reportedly targeting a Q4 2026 IPO.

Its next flagship model, internally codenamed "Spud," is expected within weeks according to CEO Sam Altman, who confirmed pre-training completed around March 24. President Greg Brockman described it as representing two years of research and a meaningful capability jump. The market is watching closely.