Chloe Malle, who has been with the magazine for more than a decade, will take the top job even as Wintour stays on.

Figlia di Candice Bergen e del compianto regista Louis Malle

Ms. Malle, 39, succeeds Anna Wintour, a titan in fashion. “There has to be a noticeable shift that makes this mine,” Ms. Malle said in an interview.