Billionaire hedge-fund founder faces $6.2 billion divorce claim in New Jersey

John Overdeck, the 56-year-old founder of Manhattan-based Two Sigma, is defending against his wife Laura’s claim for a $6.2 billion divorce settlement, which would rank among the nation’s costliest splits. The couple married in the early 2000s without a prenup and later created the Overdeck Family Foundation and the Bedtime Math nonprofit. Laura alleges she is entitled to about 35% of John’s stake in the $80 billion hedge fund, while John contends the firm was a modest paper asset at the time of their marriage and has offered roughly $600 million.

The trial, held in Newark, also intersects with an ongoing ownership dispute between Overdeck and fellow co-founder David Siegel. Additional courtroom drama includes defamation claims and allegations of computer hacking, though Laura was barred from testifying. The judge’s ruling could reshape both the couple’s finances and the balance of power at Two Sigma.