Uniswap Secures Full Dismissal in Long-Running Class Action Lawsuit
In a significant legal victory for decentralized finance, Uniswap Labs and related defendants have achieved a complete dismissal with prejudice of a class action lawsuit filed in April 2022. On March 3, 2026, Judge Katherine Polk Failla of the U.S. District Court for the Southern District of New York issued the final ruling, throwing out the plaintiffs' second amended complaint in its entirety.
Background of the Case
The litigation was initiated by investors claiming they suffered losses trading anonymous “scam tokens” on Uniswap’s decentralized protocol. The complaint alleged that Uniswap operated as an unregistered securities exchange and broker-dealer, generated revenue from liquidity fees while permitting fraudulent tokens to circulate, and should bear liability for third-party misconduct.
Key claims included:
- Violations of federal securities laws
- Deceptive conduct under New York consumer protection statutes
- Unjust enrichment
Judge Failla had already dismissed the initial complaint in August 2023. The latest ruling addressed the plaintiffs' final attempt to amend and sustain the case.
Core Findings of the Ruling
The court determined that the plaintiffs failed to plausibly allege several critical elements:
- Actual knowledge of fraud by Uniswap Labs or its executives
- Deceptive conduct attributable to the defendants under state law
- Unjust enrichment — the court found no direct benefit to Uniswap from the alleged fraud that would support such a claim
Most importantly, Judge Failla emphasized that developers of open-source, decentralized protocols cannot be held liable for unlawful activity carried out by third-party users on the network. She drew parallels to peer-to-peer technologies (e.g., file-sharing platforms) that may be exploited for illegal purposes but are not legally responsible for the actions of end users.
The ruling effectively insulates Uniswap Labs, CEO Hayden Adams, the Uniswap Foundation, and three named venture capital backers from liability in this matter.
Uniswap’s Response and Broader Implications
Following the dismissal, Hayden Adams posted on X:
“Today’s ruling sets an important precedent: if open-source smart contract code is used by scammers, liability rests with the scammers — not the developers who built neutral, permissionless infrastructure.”
