OpenAi left at least 14 seniors this year, and before IPO, there was a blood change

OpenAI has at least 14 top-level departures this year. According to Business Insider as at 21 August, 13 senior managers and key leaders had separated. The head of the data centre, Chris Malone, who left last week, joined in March 2025 and was responsible for the expansion of the data centre. The outgoing staff included former COO Brad Lightcap, the Chief of Applied Operations, Fidji Simo, the Chief Receiving Officer, Denise Dresser, the former CMO Kate Rouch, the former CPC Kevin Weil and the head of the security system, Johannes Heidecke. Reasons for departure varied, with some leaving their jobs for health reasons and others for departmental reorganization or project closure. The head of hardware, Caitlin Kalinowski, resigned because of dissatisfaction with OpenAI ' s cooperation with the Pentagon. This round of adjustments is considered to be a voluntary management blood exchange. In June, OpenAI had submitted the U.S. IPO document in secret, with successive changes of business, security, research and infrastructure managers, and an apparent lack of organizational stability prior to the listing of Anthropic。