Terraform Labs filed a motion with the court requiring market maker Citadel Securities to "provide certain data pursuant to a third-party subpoena," saying it was "critical" to defend itself in a lawsuit filed by the SEC.

The motion said Terraform Labs issued subpoenas to Citadel Securities and Citadel Enterprise Americas for transaction data "related to the May 2022 (UST) de-anchoring." Terraform noted: "Public evidence suggests that Ken Griffin, head of the Citadel entity, intends to short the token before and after the UST de-anchor in May 2022. Relevant evidence suggests that a Citadel Securities may actually be associated with the May 2022 de-anchor, although Citadel Securities publicly denied trading UST during that de-anchoring event. ”
Terraform also said Nansen's data helped them find "seven so-called 'whale' traders who have the ability and determination to go long or short on an asset or financial instrument." In addition, the data also shows that "a small number of participants discovered vulnerabilities early in the UST de-anchoring". （Blockworks）