An expensive lesson for the 24-year-old Leopold Degenbrenner.

Leopold Aschenbrenner's AI hedge fund Situational Awareness lost 67% in July, forcing a $16 billion portfolio sale to Citadel after margin calls.

Leopold Aschenbrenner's Situational Awareness hedge fund lost 67% in July 2026, selling $16B to Citadel at a discount after concentrated AI bets