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OpenAI is undergoing a significant leadership overhaul ahead of its anticipated IPO listing, with its CMO stepping down for recovery and COO transitioning roles. It signals a strategic shift in the company’s executive structure.
Fidji Simo, CEO of AGI development, recently announced that OpenAI is undergoing a major overhaul in its executive bench. According to the reports, Simo mentioned that she was going on a significant medical leave due to a worsening neuroimmune condition.
“The timing is maddening because we have such an exciting roadmap ahead that the team is executing on, and I hate to miss even a minute of it,” Simo said in the company memo about her decision to go on leave. “But the company is in great hands; we have an excellent leadership team that’s ready to step up.”
During Simo's absence, OpenAI President Greg Brockman will oversee the product department.
Brad Lightcap, the longtime COO of OpenAI, will now lead special projects and report directly to the CEO, Sam Altman. The company's Chief Revenue Officer, Denise Dresser, will take over most of his responsibilities and report directly to Simo.
Simo, who was hired by OpenAI in May the previous year and looks after the company's product and business, was diagnosed with Postural Orthostatic Tachycardia Syndrome, or POTS, in 2019.
“For my entire time here, I’ve postponed medical tests and new therapies to stay completely focused on the job and not miss a single day of work,” Simo wrote in the memo, according to Bloomberg.
“I took time off for the first time two weeks before the break for some medical tests, and it’s now clear that I’ve pushed a little too far and I really need to try new interventions to stabilize my health,” she added.
Simo joined OpenAI after stepping down as CEO of Instacart. She has played a major role in the company's push to streamline its sprawling mix of services and develop a single “Super App.”
Chief Marketing Officer Kate Rouch will be stepping down from her role to focus on cancer recovery. Rouch was diagnosed with late-stage breast cancer around a year and a half ago, soon after she joined OpenAI.
Simo said Rouch will return to a more narrowly-scoped role when she deems fit healthwise, and OpenAI will continue its search to find a new CMO.
“I love this job. I love this team. Which is exactly why I didn’t step away and did both lead at OpenAI while going through intense cancer treatment,” Rouch wrote in a post on LinkedIn. “It’s the hardest thing I’ve ever done. At a certain point, you have to be honest about your limits. I’ve reached mine.”
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OpenAI announced that it raised $122 billion from investors for its artificial intelligence ambitions on Tuesday (March 31, 2026). This figure surpasses the $110 billion initially reported in February. The incremental $12 billion was raised from venture capital firms as well as individual investors. OpenAI also reported that it raised a sizable amount from individuals, more than $3 billion.
“We have a strong leadership team focused on our biggest priorities: advancing frontier research, growing our global user base of nearly 1 billion users, and powering enterprise use cases,” an OpenAI spokesperson said in a statement, as per Bloomberg. “We’re well-positioned to keep executing with continuity and momentum.”
