A U.S. federal judge has allowed new evidence to be added to a sprawling class-action lawsuit tied to Solana-based memecoin platform Pump.fun.
This happened after a whistleblower resurfaced with nearly 5,000 internal chat messages that plaintiffs say shed new light on alleged insider trading and transaction manipulation.
In a December 9, 2025 order filed in the U.S. District Court for the Southern District of New York, Judge Colleen McMahon granted plaintiffs permission to amend and refile their complaint against Pump.fun, MEV infrastructure firm Jito Labs, the Solana Foundation, Solana Labs, and related executives.
The decision clears the way for the case to proceed with expanded factual allegations centered on maximal extractable value, or MEV.
This controversial practice allows validators or sophisticated traders to profit by reordering transactions within a blockchain block.
The lawsuit was brought by Diego Aguilar, Kendall Carnahan, and lead plaintiff Michael Okafor on behalf of investors who purchased tokens launched on Pump.fun between March 1, 2024 and July 23, 2025 and later incurred losses.
Plaintiffs allege the defendants operated what they describe as a coordinated “Pump Enterprise” that secretly gave insiders priority access to newly launched tokens while marketing those launches to the public as fair and resistant to rug pulls.
According to the complaint, Solana Labs’ validator infrastructure...
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