OpenAI's C-suite turnover gives investors another reason for concern as the company pushes toward a mammoth IPO.

The former operating chief is starting a new venture following several departures across leadership and safety teams at OpenAI.

Denise Dresser's sudden departure could be a major blow to OpenAI as it pursues a blockbuster IPO.

Dali Rajic will take over as OpenAI's top salesperson.

Denise Dresser will be pursuing “other opportunities.”

Executives keep leaving OpenAI. What's going on?