A federal judge has allowed plaintiffs to file an amended complaint in a class-action lawsuit alleging that Pump.fun’s memecoin marketplace, and parts of the Solana ecosystem around it, were structured to give insiders an unfair trading advantage. The case was originally brought by memecoin investors against Pump.fun operator Baton Corp, Solana Labs, the Solana Foundation, Jito Labs, and the Jito Foundation, and the plaintiffs say newly obtained private messages support their theory of an “insider-rigged casino.” According to reporting on the case, the judge’s order lets the plaintiffs add that new evidence, but it does not decide the merits of the claims.

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