Sam Altman wins dismissal of sister's sexual abuse lawsuit

Federal judge dismisses suit over missed medical exams

US District Judge Zachary Bluestone dismissed a sexual abuse lawsuit filed by Ann Altman against her brother, OpenAI CEO Sam Altman, on Tuesday. The case was dismissed with prejudice, meaning it cannot be refiled in that court. Judge Bluestone wrote that Ann failed to comply with court orders over the past year, specifically noting her refusal to appear for an independent medical examination and her failure to meet other deadlines despite warnings that it would result in dismissal.

The ruling did not evaluate the core claims of the litigation. Instead, the legal termination hinged entirely on procedural non-compliance during the discovery phase. Alongside the dismissal, Judge Bluestone approved Sam Altman's request to withdraw a defamation counterclaim he had previously filed against his sister, while also denying Sam's request for attorney fees and costs.

Ann Altman originally brought the lawsuit in St. Louis, Missouri, federal court in January 2025. She accused her brother of repeatedly sexually abusing and raping her at their family home in suburban Clayton, Missouri, between 1997 and 2006. Ann alleged that the abuse began when she was three years old and he was 12, continuing until he was an adult while she was still a minor. The OpenAI CEO, now 41, has consistently denied the allegations.

Earlier legal hurdles and family statements

The case reached its conclusion on Tuesday after a series of earlier procedural battles. In March, Judge Bluestone ruled that Ann's original sexual assault and battery claims had expired years earlier. He permitted her to refile the action under a Missouri childhood sexual abuse law, leading to the amended suit that was ultimately tossed out.

When the litigation first commenced last year, Sam Altman, his mother, and his brothers issued a joint statement. Annie has made deeply hurtful and entirely untrue claims about our family, and especially Sam, they said at the time. All of these claims are utterly untrue. This situation causes immense pain to our entire family.

The family later stated that Ann Altman has mental health challenges and received financial support. Sam Altman has said she began accusing him on social media of sexual abuse after the family rejected her demands for more funds. In a joint statement after the initial filing, the family added that she refuses conventional treatment and lashes out at family members who are genuinely trying to help.

Legal representation and withdrawal from the case

Legal counsel on both sides shifted as the proceedings wore on. Santos Perez represented Ann Altman until this month, when he withdrew from the case. Following Tuesday's dismissal, Perez provided a statement: I am no longer authorized to comment on this case but I continue to believe in Annie. Laura Politi, another lawyer for Ann Altman, did not immediately respond to a request for comment. Lawyers for Sam Altman also did not immediately respond to a request for comment.

That leaves the dispute legally closed with no path for refiling, though the public disagreement over the underlying claims remains absolute. The court docket shows January 2025 as the starting point for a legal challenge that concluded on Tuesday without a trial on the merits.