According to prosecutors, Stamp and Plank worked together to take advantage of secret information they obtained from their jobs at Volkswagen regarding talks with Rivian.
Volkswagen and Rivian made the joint venture public on June 26, 2024. The indictment further states that Plank passed the inside information to a relative, who then earned $12,000 from trades.
Investigators pointed to internet queries conducted near the time of the announcement as evidence that the pair understood they were breaking the law. Stamp searched for "statute of limitations insider trading" eight days before the deal was made public, and a close relative of Plank searched in German "how is insider trading prosecuted?" after the announcement.
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Manhattan US Attorney Jay Clayton stated, "When people misuse confidential information for their own financial gain, they undermine the principles that allow our markets to function fairly and efficiently."
Attorneys for the two defendants could not be immediately identified.
The case is docketed as US v Stamp, 26-cr-316, in the US District Court for the Southern District of New York.
This case highlights the aggressive enforcement of insider trading laws, particularly when digital footprints like search histories are used as evidence. The Volkswagen-Rivian joint venture, valued at $5 billion, was a major strategic move for both companies, combining Volkswagen's manufacturing scale with Rivian's electric-vehicle technology. Insider trading investigations often hinge on proving that individuals had access to material non-public information and acted on it.
Here, the alleged searches for legal consequences of insider trading suggest that the defendants knew their actions were improper. Federal prosecutors in the Southern District of New York, which has a reputation for pursuing white-collar crime, continue to rely on such electronic records to build cases. The charges against Stamp and Plank serve as a reminder that corporate employees with access to deal-related data can face severe legal repercussions if they trade on that information or share it with others.
The joint venture negotiations had reportedly been underway for several months before the June 2024 announcement, giving numerous employees at both companies access to confidential details during that period. Federal investigators frequently scrutinize trading patterns and digital records in the weeks leading up to such deal announcements to uncover potential insider trading.
Such large-scale deals often create a window for insider trading, as employees at both companies may learn details weeks before the public. The Southern District of New York has long been a leader in prosecuting securities fraud, and prosecutors frequently subpoena internet search histories, phone records, and trading patterns to build cases - as they did here. The case demonstrates that even engineers without senior roles can experience serious legal repercussions for abusing confidential corporate data.
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