According to BlockBeats, on October 4, Michael Lewis, author of The Big Short, revealed in his new book Going Infinite that in the face of increasing regulatory scrutiny, especially the regulators' strict requirements for the list of FTX investors and their personal details, SBF believes that maintaining CZ as FTX's second largest shareholder is no longer in the company's long-term interests. A former Binance employee revealed: "When asked about private information such as CZ's family and place of residence, CZ was reluctant to provide it." In order to avoid this regulatory pressure, SBF took the initiative to propose to CZ in mid-2021 to repurchase the FTX shares it purchased for $80 million at the end of 2019, and CZ offered a price of $2.2 billion. Despite the high price, SBF agreed to pay. But when the two parties were about to sign a formal agreement, CZ suddenly asked for an additional $75 million. SBF agreed to the additional fee and eventually completed the equity repurchase.