Aschenbrenner's AI Hedge Fund Sells Public Portfolio to Citadel as Assets Fall from $45B to $10B

Situational Awareness, founded by 25-year-old former OpenAI researcher Leopold Aschenbrenner with no prior trading experience, sold the majority of its public stock portfolio to Citadel on July 30, 2026. The fund's assets collapsed from a $45 billion peak to roughly $10 billion, amplified by leverage. Hard-hit holdings included SK Hynix, SanDisk, Bloom Energy, and Nebius Group. The fund retained its private Anthropic shares.