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Event Brief

Ken Griffin says Citadel unwound most Situational Awareness risk

Ken Griffin said in a client letter that Citadel has unwound more than 80% of the aggregate risk from the Situational Awareness portfolio it acquired. He cited over 100 block trades totaling more than $4 billion in market value and said discussions began July 29.
WHO: Ken Griffin and Citadel
WHAT: Griffin said Citadel unwound more than 80% of the risk from the Situational Awareness portfolio it acquired via more than 100 block trades over $4 billion.
WHEN: Reported Aug 21, 2026 at 3:58 PM ET
WHERE: USA
WHY: Griffin addressed clients for the first time about Citadel’s purchase of assets from Leopold Aschenbrenner’s Situational Awareness hedge fund.

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