Nathaniel Chastain, the ex-head of product at OpenSea, has been given a three-month prison term along with a $50,000 fine, as reported by Inner City Press.
Chastain, 31, who had no previous criminal record and was seen as having "a potentially bright future", received this verdict from a U.S. District Court judge in the Southern District of New York.
In May, Chastain was found guilty in a trial that revolved around what prosecutors termed the "first ever digital asset insider trading scheme," specifically focusing on his alleged involvement in NFT insider trading.
According to U.S. Attorney Damian Williams:
"Nathaniel Chastain faced justice today for violating the trust that his employer placed in him by using OpenSea's confidential information for his own profit. Today's sentence should serve as a warning to other corporate insiders that insider trading – in any marketplace – will not be tolerated."
Chastain's penalties include three months of home confinement and three years of supervised release, alongside the prison sentence and fine.
Charges against Chastain were filed in June 2022 when he was accused of using privileged information regarding upcoming NFTs to generate personal profits.
OpenSea, a prominent online platform for NFT trading, was the context of this scheme.
Chastain's role at OpenSea involved selecting NFTs for featuring on the homepage, a task that required handling confidential information.
As revealed by the Justice Department last year, the value of these assets usually surged once they were showcased on the homepage.
The Department of Justice stated that Chastain secretly acquired numerous NFTs shortly before their homepage appearance and subsequently sold them, yielding profits ranging from two to five times the original price.
OpenSea's CEO Devin Finzer confirmed Chastain's departure in a blog post in September 2022, after users noticed suspicious activity on Chastain's wallet.