The Crypto CrisisFallout from FTX

Ex-OpenSea Worker Found Guilty in First NFT Insider-Trading Case

Nathaniel Chastain convicted of using confidential information to trade on digital tokens

The home page of NFT marketplace OpenSea. Photo: Ariel Zambelich/The Wall Street Journal

A former employee of NFT marketplace OpenSea was found guilty Wednesday of what federal prosecutors described as the first insider-trading case involving digital tokens, marking a win for the Justice Department in its push to police the crypto industry.

A federal jury in New York convicted Nathaniel Chastain of wire fraud and money laundering for using nonpublic information from his employer to trade on nonfungible tokens in 2021. The Manhattan U.S. attorney’s office charged Mr. Chastain in 2022, accusing him of purchasing the NFTs ahead of OpenSea’s featuring them on its home page. Once the NFTs spiked in value after being featured, Mr. Chastain sold them, pocketing tens of thousands of dollars in profit, prosecutors said.  

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