"Kate Winslet married Ned Rock'nRoll in NY earlier this month in a private ceremony attended by her two children and a very few friends and family," the rep's statement reads. "The couple had been engaged since the summer."
According to People, Winslet's Titanic co-star and close friend Leonardo DiCaprio gave her away during the wedding ceremony, and everything was so hush-hush that even the couple's parents didn't know about it.
Despite a few recent public appearances at the end of November and in early December, Winslet, 37, was never photographed wearing an engagement ring or wedding band.
This is her third marriage, having been wed to Jim Threapleton, with whom she has a daughter, and director Sam Mendes, with whom she shares a son.