X CEO Linda Yaccarino Says She Is Leaving the Social Media Platform

Linda Yaccarino, the chief executive of X and a top lieutenant to its owner, Elon Musk, said on Wednesday that she was leaving the company two years after joining the social media platform.

In a post to X, Ms. Yaccarino, 61, said, “When @elonmusk and I first spoke of his vision for X, I knew it would be the opportunity of a lifetime to carry out the extraordinary mission of this company. I’m immensely grateful to him for entrusting me.”

She did not provide a reason for her departure.

Ms. Yaccarino’s exit caps a tumultuous period at X, which has been remade in Mr. Musk’s image since he bought the platform for $44 billion in 2022. Since then, Mr. Musk has shed three quarters of the company’s employees, loosened speech restrictions on the platform and wielded X as a political megaphone. Advertisers to X were at one point spooked by the changes and the social media company’s ad business declined.

In March, Mr. Musk said he had sold X, which is a privately held company, to xAI, his artificial intelligence start-up, in an unusual arrangement that showed the financial maneuvering inside his business empire. The all-stock deal valued xAI at $80 billion and X at $33 billion, Mr. Musk said. Since then, xAI has been in talks to raise new financing that could value it at as much as $120 billion.

Top executives regularly come and go at Mr. Musk’s various companies, which include the electric carmaker Tesla and the tunneling company Boring Company. One exception is Gwynne Shotwell, the president of SpaceX, Mr. Musk’s rocket company.

Mr. Musk, who until recently was regularly working in Washington as an adviser to President Trump, brought Ms. Yaccarino to X in May 2023 to handle the social media company’s business. She has a background in the media and advertising industry. At the time, the company was known as Twitter.