Judge Dismisses Class Action Against Uniswap, Setting Major Legal Precedent for DeFi!

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‘Good, Sensible Outcome’ — Judge Dismisses Class Action Against Uniswap Labs in New York

A federal judge in New York City has permanently dismissed all lawsuits against Uniswap Labs and its CEO, Hayden Adams. This is a significant victory for developers in the decentralized finance (DeFi) space who were accused of helping criminals carry out crypto scams.

‘Another Day, Another Precedent-Setting Ruling for DeFi,’ Uniswap Foundation’s General Counsel Says

On March 2, 2026, U.S. District Judge Katherine Polk Failla of the Southern District of New York threw out the final state-law claims in Risley v. Universal Navigation Inc., ending a nearly four-year class action tied to so-called “scam tokens” traded on the Uniswap protocol. The ruling closes the book on a lawsuit that sought to hold the protocol’s creators liable for investor losses tied to rug pulls and pump-and-dump schemes carried out by anonymous third parties.

The case began in April 2022, when lead plaintiff Nessa Risley and other investors alleged they lost money trading 38 fraudulent tokens through Uniswap’s web interface between April 5, 2021, and April 4, 2022. The defendants included Uniswap Labs — formally Universal Navigation Inc. — and Hayden Adams, its founder and CEO.

Plaintiffs argued that by designing and promoting the decentralized exchange and collecting fees, the company effectively facilitated unregistered securities sales and enabled widespread fraud. They also targeted venture backers in earlier pleadings, though those defendants were later dismissed.

Judge Failla had already dismissed federal securities claims in August 2023, concluding Uniswap’s developers were not “statutory sellers” under federal law and that the protocol’s smart contracts were lawful tools capable of facilitating both commodity and token trades. The U.S. Court of Appeals for the Second Circuit affirmed that dismissal in February 2025, but remanded the case for consideration of state-law claims.

After the case was sent back for further review, the plaintiffs revised their lawsuit, centering it on accusations of helping commit fraud, providing inaccurate information that caused harm, breaking consumer protection laws in New York, North Carolina, and Idaho, and unfairly profiting. However, on Monday, Judge Failla dismissed these new claims, determining they still didn’t present enough evidence to suggest wrongdoing.

According to Judge Failla, the plaintiffs have still failed to make a convincing legal argument, even after being given three opportunities to do so.

The court’s main reasoning was that there was no proof the defendants knew about the fraud. To win a case claiming someone helped commit fraud in New York, plaintiffs needed to demonstrate the defendants actually knew about the fraud and actively helped it happen. The court determined they failed to prove either of those things.

Claims that Uniswap was warned about losses weren’t proven, as they didn’t show the company knew about the problems at the time they happened. Simply posting general warnings about scam tokens on social media wasn’t enough. And while a study in March 2022 pointed out many fake tokens were being launched, it didn’t prove Uniswap knew about these specific tokens when the issues occurred.

The court dismissed the idea that simply offering a platform was enough to be considered significant help in the alleged fraud. Judge Failla explained that, like traditional markets or banks, providing access to a marketplace – even one used by dishonest individuals – isn’t the same as actively participating in fraudulent activity. The people who actually created the tokens remained unidentified, and the lawsuit itself repeatedly stated that the losses were caused by the token creators’ false claims.

Claims that Uniswap Labs failed to protect consumers were also unsuccessful. The court determined that the company didn’t make any significantly misleading statements and had clearly warned users in its blog posts and terms of service about the dangers of scam tokens. Furthermore, the information the company was accused of withholding wasn’t exclusive to them and was generally available to users.

The plaintiffs didn’t convincingly demonstrate that Uniswap Labs directly benefited from the transactions in question during the specified period. The optional fee feature wasn’t turned on, and the interface fee introduced in October 2023 came too late to be relevant to the case.

In dismissing the complaint in full, the court signaled a continued reluctance by federal courts to extend liability to open-source protocol developers absent direct involvement in misconduct. The opinion emphasizes that grievances about regulatory gaps in decentralized finance may be better addressed by Congress than through expansive judicial interpretation.

Supporters of the decision argue it protects innovation in permissionless systems, where software developers do not control user conduct. “Uniswap wins another case that sets a new legal precedent,” Adams wrote on X. “If you write open source smart contract code, and the code is used by scammers, the scammers are liable, not the open source devs. Good, sensible outcome,” he added.

“Another day, another precedent-setting ruling for DeFi,” Brian Nistler, the General Counsel of the Uniswap Foundation, posted on Monday. “The Federal charges had previously been dismissed, and today the various state claims are dismissed.”

Currently, a New York federal court has ruled that simply creating the technology for a decentralized system doesn’t automatically mean someone is committing fraud. It’s unclear if the people who brought the case will appeal again, but after several revisions and reviews, it seems unlikely they’ll succeed.

FAQ 🔎

  • What did the New York federal court decide in the Uniswap case?
    A judge dismissed all remaining state-law claims against Uniswap Labs and its CEO with prejudice, ending the class action.
  • Why did the court reject aiding-and-abetting fraud claims?
    The court found no plausible allegations that Uniswap had actual knowledge of specific scams or substantially assisted the fraud.
  • Did the court find Uniswap responsible for scam tokens?
    No, the ruling states that providing decentralized infrastructure does not make developers liable for third-party misconduct.
  • What does this mean for decentralized finance in the U.S.?
    The decision reinforces judicial limits on holding open-source protocol developers liable, leaving broader regulatory changes to Congress.

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2026-03-03 01:27