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SEC targets US banks in Situational Awareness hedge fund probe; NatWest steps up US expansion with Connecticut office

Reported by Thebanker
Aug 25, 2026· 2 min read
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Key Takeaways
  • • The SEC has subpoenaed major Wall Street banks—including Bank of America, Citigroup, Goldman Sachs, and JPMorgan Chase—seeking information about trades and financing related to the near-collapse of Situational Awareness, an AI-focused hedge fund led by 24-year-old Leopold Aschenbrenner.
  • • Situational Awareness managed over $30 billion at peak and borrowed tens of billions in leverage before its late-month implosion, making it one of the most leveraged AI hedge funds on Wall Street and a major client across the banking sector.
  • • The SEC's subpoenas specifically request details on the timing of the fund's trades, its communications with lenders regarding borrowed capital ("leverage"), and preservation of all related information; the hedge fund has not been accused of wrongdoing and is cooperating with regulators.
  • • NatWest is simultaneously expanding its US presence with a new Connecticut office, part of broader growth in the region (mentioned in the same publication coverage but separate from the SEC investigation).
Summary
The Securities and Exchange Commission is investigating the near-implosion of Situational Awareness, a San Francisco-based AI-focused hedge fund, by issuing subpoenas to major Wall Street banks that provided trading services and financing to the firm. According to three people briefed on the regulatory outreach, the SEC sought information from Bank of America, Citigroup, Goldman Sachs, and JPMorgan Chase regarding the timing and details of Situational Awareness's trades, as well as communications between the fund and its lenders about leverage arrangements. The subpoenas also directed banks to preserve all documentation related to the fund's activities.

At its peak, Situational Awareness managed more than $30 billion in assets under management and borrowed tens of billions in additional leverage to amplify its investment positions, according to regulatory filings. The fund's dramatic drawdown late last month triggered significant attention from both market participants and regulators concerned about systemic risk and the concentration of leverage in high-profile investment vehicles. The SEC's investigation appears to be in its earliest stages, and no wrongdoing has been alleged against either the hedge fund or the banks involved. A Situational Awareness spokesperson stated that regulatory scrutiny of high-profile funds with significant returns or dramatic losses is expected, and committed the firm to full cooperation with any SEC requests. The SEC and major banks declined further comment on the investigation.

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Sources

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AlphaMaven summarised this story from the reporting below. Each link opens the original article.

Thebanker SEC targets US banks in Situational Awareness hedge fund probe; NatWest steps up US expansion with Connecticut office