Sheryl Sandberg has announced that she will leave Meta, the parent company of Facebook, after 14 years as its chief operating officer under Mark Zuckerberg’s leadership. When Zuckerberg hired the Google executive, she called the move “to help another young company grow into a global leader the opportunity of a lifetime.” She said she plans to focus on her personal philanthropy and her foundation, Lean In, and will also remain on Meta’s board of directors. Zuckerberg praised Ms. Sandberg, thanking her for teaching him how to run a company, he said. He has named Javier Olivan, a longtime product executive who has overseen much of Facebook’s growth over the past decade, as Meta’s next COO, The New York Times said.

A Harvard graduate, Ms. Sandberg served as the chief of staff to Treasury Secretary Lawrence H. Summers during the Clinton administration, and made her name in Silicon Valley by helping to build Google’s nascent targeted ads business into a multibillion-dollar juggernaut.

After joining Facebook, she developed its advertising business , helping to create some of Facebook’s advertising formats for desktop computers, before successfully building its mobile advertising strategy. By 2016, Facebook’s revenue was $27.6 billion, compared with the $153 million it generated in 2007 before Ms. Sandberg joined. The ads business remains Meta’s main financial engine.

Ms. Sandberg’s reputation grew with the 2013 publication of her business book, Lean In, a manifesto for working women based on her experience in government and business. It became a bestseller and launched her personal brand.