"It's with great sadness that Tracy has confirmed the separation between herself and her husband, Matt," her rep told the magazine. "The well-being of the daughter that they share, as well as her son, will always remain Tracy's first priority. We appreciate the respect of Tracy and her family's privacy during this immensely heartbreaking and painful time."
Anderson, 38, wed Mogul in 2011, and they welcomed their daughter Penelope in 2012. The fitness mogul, whose clients include Gwyneth Paltrow and Julianne Hough, also has a 13-year-old son from a previous marriage.