The US Department of Justice has officially closed its case against Nathaniel Chastain, the former executive from OpenSea, marking a significant moment in the realm of non-fungible tokens (NFTs) and insider trading. This conclusion comes after prosecutors decided not to pursue a retrial following the overturning of Chastain’s conviction last year.
In a recent filing with a Manhattan federal court, prosecutors stated that they have entered a one-month deferred prosecution agreement with Chastain. This agreement stipulates that once the month concludes, the charges against him will be dismissed. Manhattan US Attorney Jay Clayton, who has previously held the position of SEC Chair, explained in a court letter that the decision to end the prosecution was influenced by Chastain’s partial completion of his original sentence.
Chastain had previously served three months in federal custody and forfeited approximately 15.98 ETH, which was valued at around $47,000. These funds were asserted by prosecutors to represent the gains he accrued from his trading activities related to NFTs. He also consented not to contest this forfeiture.
Clayton emphasized that “the interest of the United States will be best served” by discontinuing the prosecution at this stage rather than pursuing a retrial.
Chastain’s legal troubles began in May 2023 when he was convicted on charges of wire fraud and money laundering. Federal prosecutors accused him of leveraging prior knowledge of which NFT collections would be featured on OpenSea’s homepage, secretly purchasing them, and later selling them at a profit. The jury determined that he had conducted at least 15 trades utilizing anonymous wallets and burner accounts between June and September 2021, yielding around $57,000 from the scheme.
However, in July 2025, the Second Circuit Court of Appeals reversed his conviction. The appellate court sided with Chastain’s defense, which contended that the NFT placement data he accessed did not fulfill the legal definition of “property” as stipulated under federal wire fraud statutes. The court concluded that the jury had been misled, effectively finding Chastain guilty based on ethical breaches instead of fraud directly linked to misappropriated property with tangible commercial value to his employer.
Judge Steven Menashi noted that deceptive behavior alone does not equate to criminal fraud in the absence of a clearly defined property interest. Following this ruling, Chastain was released from court supervision and is now in a position to reclaim the $50,000 fine along with the $200 special assessment he paid after his 2023 conviction.
At one juncture, prosecutors examined the possibility of holding OpenSea accountable for Chastain’s actions. However, it was determined that the company had responded promptly to investigate the misconduct, terminated Chastain’s employment, and cooperated fully with the investigation.
In a wider context, US regulatory bodies have been retreating from aggressive enforcement in the cryptocurrency sector since late 2024. Under new leadership, there has been a notable shift away from a regulation-by-enforcement strategy. For example, the Securities and Exchange Commission (SEC) has concluded its year-long investigation into OpenSea, which was related to the same events that led to Chastain’s initial charges. The SEC had issued a Wells Notice against OpenSea, alleging that the platform was offering NFTs as unregistered securities, but this case was dropped following the shift in agency priorities.
