Situational Awareness Sells $16 Billion Public Book to Citadel After Margin Calls

The fund’s reported 270% return was a paper mark on private stock while its leveraged public portfolio collapsed in weeks.

Situational Awareness sold approximately $16 billion in listed equities to Citadel in a single block transaction this week, liquidating its entire public portfolio after margin calls forced an exit from leveraged positions [7]. The sale resolves immediate liquidity pressure for Leopold Aschenbrenner’s firm but exposes the structural fragility behind one of the year’s most widely cited hedge fund success stories. What appeared to be a dominant AI trade was in fact two separate books moving in opposite directions, with only the illiquid half surviving intact.

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