The actress' rep confirms to Us Weekly that she recently split from Thaddaeus Scheel, with whom she has three children: Eulala, 13, and twins Hudson and Julitta, 7.
"For the sake of the couple's three children, Harden would like to request that the family's privacy be respected at this time," the 52-year-old actress' rep said in a statement. "No further comments will be made on this matter, and we thank you for your understanding."
In 2001, Harden won the Best Supporting Actress Oscar for Pollock. Her other film and TV credits include Law & Order: Special Victims Unit, The First Wives Club, Mystic River, The Mist, God of Carnage and Into the Wild.