US prosecutors are urging a federal court to deny Alex Mashinsky's attempt to overturn his conviction and cut his 12-year prison sentence over fraud at Celsius, arguing that his claims are unsupported and do not warrant a hearing. Mashinsky, the former CEO of the collapsed crypto lending platform, told the court in May that he would proceed pro se and later filed a motion touching on FTX and former Celsius executive Roni Cohen-Pavon. Prosecutors said he failed to submit a sworn declaration backing those allegations. Mashinsky was sentenced in May 2025 to 144 months after pleading guilty to commodities fraud and securities fraud, and was ordered to forfeit $48 million. Cohen-Pavon, whom prosecutors said provided substantial assistance, received time served. Mashinsky has also been permanently banned by the CFTC from trading in commodities markets, while the SEC's civil case against him remains active and in settlement discussions.