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Aschenbrenner Sells Public Portfolio to Citadel and Makes $400M Private Bet

Bank margin calls cut the fund to roughly $10 billion, shifting its recovery onto illiquid private holdings.

Overview

  • Situational Awareness responded to escalating margin calls by selling most of its public equity book to Ken Griffin’s Citadel, a move that removed a major selling overhang and let the fund meet lender demands.
  • The fund’s assets dropped from about $45 billion to roughly $10 billion after a steep July sell-off in AI‑infrastructure and semiconductor stocks and heavy use of leverage.
  • Leopold Aschenbrenner told investors he is personally invested and pledged to learn from the episode while the firm redeployed capital into private deals, including a reported $400 million investment that builds on a prior $100 million stake.
  • Sequoia partner Alfred Lin confirmed the $400 million went to a Sequoia‑backed private company, though the recipient has not been publicly named.
  • Thousands of retail investors continue to copy the fund’s disclosed public holdings through Autopilot without using leverage, and prime brokers and market participants are reassessing margin and concentration risk that the episode exposed.