Judge Allows 5,000+ Internal Chat Logs in MEV Lawsuit Against Pump.fun and Solana

A U.S. federal judge allowed plaintiffs to amend a class-action suit against memecoin launch platform Pump.fun and Solana-related parties by adding more than 5,000 internal chat logs as evidence alleging insider use of MEV (maximal extractable value). Plaintiffs, represented by Burwick Law, say the logs show Pump.fun staff, Solana engineers and Jito-linked personnel coordinating transaction ordering and preferential access that enabled front-running and advantaged buys ahead of public participants. Earlier defendants included Jito Labs — an MEV-infrastructure builder on Solana — which was later dismissed without prejudice. The addition of the logs could widen discovery, raise questions about legal liability for MEV tooling and neutral infrastructure, and set a U.S. precedent on responsibility for MEV-related harms. Crypto community observers have debated whether the new evidence is substantive or a litigation tactic and have questioned legal interpretations of routine MEV mechanics. For traders: monitor Solana ecosystem governance, regulatory scrutiny, reputational risk to projects named, and potential liquidity and volatility impacts for memecoins tied to Pump.fun; legal developments could change token flows and short-term price behavior.
Bearish
The admission of 5,000+ internal logs alleging insider MEV advantages increases legal and reputational risk for Pump.fun and related Solana projects. Short-term impact: elevated uncertainty typically reduces liquidity for associated memecoins and increases volatility as traders pull capital or hedge exposure; news-driven sell pressure and wider spreads are likely. Mid-to-long term: if discovery reveals coordinated preferential access, platforms facilitating token launches could face sanctions, tighter compliance, or operational changes, reducing speculative flows into memecoin launches and depressing demand. Dismissal of Jito Labs without prejudice leaves potential for renewed allegations against MEV infrastructure providers, maintaining regulatory and legal overhang. Overall, the news is likely negative for tokens most directly linked to Pump.fun and could weigh on Solana-linked speculative memecoins until legal outcomes clarify liability and operational practices.