Back in July, Griffin filed for divorce from his wife of 11 years, Anne Dias-Griffin, while she was on summer vacation with their three children.
Griffin, 45, is the founder of Chicago-based hedge fund giant Citadel LLC. Dias-Griffin, 43, was born in France. She's the founder of hedge fund firm Aragon Global Management.
Dias-Griffin is now seeking equitable division of their assets and sole custody of their children, the Crain's report said citing the filing. She wants their pre-nup thrown out.
CNBC/ Heidi Gutman
Dias-Griffin also claims that she had told Griffin she didn't want to sign the prenup. This, according to Dias-Griffin's filing, lead to an argument where she claims Griffin "destroyed a piece of furniture in their home."
Dias-Griffin claims that Griffin got her to meet with a psychologist. According to Dias-Griffin, the psychologist sided with Griffin. She ended up signing the pre-nup three hours before the rehearsal dinner.
Griffin's attorney maintains that the prenup is valid. He also told Crain's that Dias-Griffin's allegations are "simply untrue."
Under the terms of the prenup, she claims she will receive 1 percent of Griffin's assets. Griffin has an estimated net worth of $5.5 billion, according to Forbes
Griffin and Dias-Griffin were married in Versailles in July 2003. This is the second divorce for Griffin. He divorced his first wife in 1994.