Exclusive | Deadbeat hedge fund boss, sued by his own mother, declares bankruptcy and lists two guinea pigs among $239K in assets

A hedge fund manager who has been sued by his own mother over an unpaid mortgage he took out on her house has declared himself bankrupt — just months after The Post exposed his wild spending spree in the south of France.Jason Ader — a 59-year-old former activist investor who a decade earlier regularly appeared on CNBC and helped unseat Marissa Mayer as CEO of Yahoo — quietly filed for personal bankruptcy in Miami on Dec.22, according to court documents reviewed by The Post.He owes roughly 2 million in debts, he admitted in court filings and a court-ordered call with creditors last week.Those include his estranged wife Julie and his mother Pamela, who is suing him in New York after he defaulted on a $13 million loan against the family’s townhouse on the Upper East Side of Manhattan.Ader has also racked up debts with the Internal Revenue Service, banks, lawyers, and investors who were burned in a botched $2.5 billion takeover of the biggest casino in the Philippines.Ader — a former board member of the Las Vegas Sands, the casino giant founded by the late GOP kingmaker Sheldon Adelson — claimed he is worth just $239,000.“That’s an unbelievable net worth claim since it seems to exclude his trusts,” said one person briefed on the matter.Ader begged the Miami court, which is still deliberating on the case, not to seize the shirts on his back — some $10,000 worth of clothing — and his 2024 Tesla Cybertruck that he values at $70,000.Among his assets, Ader lists $50,000 of furniture, a Glock G26 pistol, and two unnamed guinea pigs worth $25 each.But in a bizarre statement issued via a spokesperson, the investment guru called The Post’s questions about the two rodents “inaccurate and inappropriate.”He claimed that the court filing that explicitly mentioned “non-farm animals” actually “refers to my minor child, who has no involvement in these matters.”But creditors were unimpressed during the telephone conference, in which Ader faced questi...