Situational Awareness, a US AI hedge fund founded by former OpenAI researcher Leopold Aschenbrenner, disclosed to Japanese regulators on August 13 that it had previously made significant purchases of shares in Taiyo Yuden, a leading Japanese MLCC manufacturer. Its stake had at one point reached 16.61% before rapidly decreasing to 4.41%. The market has linked this reduction in holdings to a liquidity crisis faced by Situational Awareness after the tech stock crash in July, and speculates that veteran hedge fund Citadel has taken over some of the shares. Following this news, Taiyo Yuden's stock price surged by 7.51% on Wednesday (August 12) local time, leading the Nikkei 225 index components.