Sheryl Sandberg is stepping down from her post as a senior executive at Meta.
She has served as chief operating officer at Facebook’s parent company for 14 years and is second-in-command after Mark Zuckerberg.
“When I took this job in 2008, I hoped I would be in this role for five years,” she wrote on her Facebook page.
“Fourteen years later, it is time for me to write the next chapter of my life.”
Ms Sandberg grew the social media giant’s advertising business from its infancy to a value of $100 billion a year.
Mark Zuckerberg, Meta’s chief executive, said he does not plan to replace her in the company’s existing structure.
Javier Olivan will serve as the new chief operating officer, but Mr Zuckerberg said “this role will be different from what Sheryl has done”.
“It will be a more traditional COO role where Javi will be focused internally and operationally, building on his strong track record of making our execution more efficient and rigorous,” he said.
Ms Sandberg has had a very public-facing job, which involved meeting with politicians, holding focus groups and speaking out on issues such as gender equality in the workplace and most recently, abortion.