Stream Finance, the decentralized finance yield optimization platform that collapsed last month, is suing its current owner and operator, Caleb McMeans, known online as 0xlaw, according to court filings.

Stream Trading Corp., which first launched Stream Finance in 2024, has filed a lawsuit against McMeans, who the firm identified as the person behind the username 0xlaw, and says bought the platform in early 2025 but mismanaged it, leading to its collapse. The lawsuit, filed on Dec. 8 in the U.S. District Court for the Northern District of California, accuses McMeans of running Stream Finance “as his own business” and mismanaging user funds.

It also alleges that McMeans failed to deal with the fallout after “a yield farming trader” he hired, Ryan DeMattia, lost roughly $93 million “in a variety of off-chain strategies,” which represents about 17.5% of the assets under his management, according to the filing. Once reported in early November, the loss triggered the platform’s collapse, and led to wider contagion across the DeFi sector.

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