The veteran ad sales chief's surprise departure raises questions about her own future, and the future of the platform formerly known as Twitter.

Yaccarino announced her departure on X, saying that she is “immensely grateful” to Elon Musk for taking her on in 2023.

Linda Yaccarino said she is stepping down from her role as CEO of X, the social media platform owned by Elon Musk. Yaccarino, who previously served as an advertising executive at NBCUniversal, took the helm of X two years ago. In a post on X announcing her departure, Yaccarino thanked Musk for the opportunity.