Situational Awareness, the AI-focused hedge fund founded by former OpenAI researcher Leopold Aschenbrenner, filed belated disclosure reports on August 12 revealing a dramatic stake cycle in Taiyo Yuden, the Japanese multilayer ceramic capacitor (MLCC) maker. The fund gradually built its position from 5.99% on June 29 to a peak of 16.61% on July 22, then rapidly unwound it to 4.41% by August 3 — falling below the 5% disclosure threshold — all during a period of severe margin calls and forced liquidations.
The unwinding was driven by a sharp decline in semiconductor and AI infrastructure stock valuations in late July. Situational Awareness' assets under management plummeted from $45 billion to approximately $10 billion, a 78% contraction, as leveraged long positions lost value. Citadel, led by Ken Griffin, acquired a substantial portion of the fund's AI and semiconductor positions at discounted, distressed prices — a forced sale typical of margin calls on highly leveraged portfolios.
Taiyo Yuden shares, which had surged roughly 540% through July 1 on expectations of AI data-center capex, rose 7.5% on August 12 when the initial disclosure hit the market — but the filing revealed the fund had already exited most of its position weeks prior. This disconnect highlights a critical gap between regulatory filing dates and actual trade execution, a lag that misled retail traders into buying into a stake the fund had already largely liquidated.