OpenAI Chief Revenue Officer Denise Dresser reportedly announced her departure on Thursday, two days after Head of Operations Brad Lightcap also ended his eight-year tenure. Additionally, executive Fidji Simo has also left. This wave of executive departures comes as OpenAI seeks to justify its $852 billion valuation through an initial public offering (IPO), which analysts have called a "huge red flag." OpenAI confidentially filed its IPO prospectus in June. The company has appointed Dali Rajic, former COO of cybersecurity firm Wiz, as its new Chief Revenue Officer, and stated that its enterprise business customers have grown to 2 million.