On April 24, Eastern Time, the U.S. Department of Justice announced the arrest of active-duty Army Special Forces Staff Sergeant Gannon Ken Van Dyke.
The indictment released by the Department of Justice on the same day revealed that Van Dyke participated in the operation to capture Venezuelan President Nicolás Maduro from the Presidential Palace in Caracas on January 3 of this year.
According to reports, Van Dyke bet on Maduro's capture through a prediction market on the eve of the operation, earning over $400,000. Although the report did not disclose specific account information, by comparing the betting direction and profit amount mentioned, we identified account 0x31a5.
This is one of the five insider accounts点名ed by PolyBeats in two consecutive reports on January 4 and January 7.
Van Dyke Account Review
Let's rewind to January 4 of this year.
After the Maduro capture incident, PolyBeats immediately analyzed on-chain data,锁定ed five accounts, and completed public reporting within 24 hours after the operation ended. For details, see 《They Missed $2 Million Because Maduro Wasn't Supposed to Spend New Year at Home》
Among them, Van Dyke's account was the highest earner of the five. The account was registered on December 26, 2025, and subsequently placed a series of bets highly related to the capture operation, such as "Maduro's ouster" and "U.S. troops entering Venezuela," The total principal was approximately $30,000, with total profits exceeding $400,000.
On the day of the operation, the account withdrew most of its funds, transferred them to an overseas cryptocurrency account, and then deposited them into a newly opened brokerage account.
On January 6, three days after the operation ended, media began reporting abnormal trades related to this operation on Polymarket. On the same day, the account requested deletion from Polymarket, citing "inability to access the registered email." Simultaneously, he changed the registered email of the cryptocurrency exchange to an anonymous email secretly created as early as December 14.
New account, precise positioning, withdrawal on the day of the incident, post-event痕迹 destruction—this set of operational procedures was the异常特征 we重点标记ed in the January review.
Today, the Department of Justice gave this address a name: Gannon Ken Van Dyke.
More Than One Person in the Story
Van Dyke's arrest is the first case of insider trading on Polymarket formally prosecuted by the DOJ. But this story never involved just him.
In the two January reports, PolyBeats标注ed a total of five accounts. Apart from Van Dyke, there has been no official investigation information regarding the other four:
0xa72db1749e9ac2379d49a3c12708325ed17febd4, profit $74,982;
0x6baf05d193692bb208d616709e27442c910a94c5, profit $145,619;
0x168b100d7a6620a2f49a455344c2c006eaf1714b, profit approx. $34,000;
0x168b100d7a6620a2f49a455344c2c006eaf1714b, profit approx. $54,000.
Why haven't these four accounts been arrested yet?
The most direct reason is the amount. Van Dyke's profit was nearly $410,000, the highest among the four accounts, making his执法优先级 most clear.
A more critical reason is identity. Van Dyke is an active-duty soldier, signed a confidentiality agreement, and was directly involved in action planning, making the identity verification path extremely short. The true identities and information sources of the other four accounts are still unclear. If they obtained second-hand information, the legal boundaries would be much模糊er, significantly increasing the difficulty of prosecution.
Another layer is Polymarket's own reporting boundaries. The platform claims they proactively discovered and reported Van Dyke to law enforcement, but the other four同样存在异常的 accounts were显然 not reported together. The platform has no explanation for this.
However, one thing is changing this situation.
In March of this year, Polymarket released an enhanced market integrity rule, explicitly prohibiting three types of behavior: trading based on legally required confidential information, trading based on others' insider information, and participation in related markets by individuals with the power to influence event outcomes. As the rule was implemented, this indictment from the DOJ also sends the same signal to everyone: the platform is willing to cooperate with investigations, records on the blockchain will not disappear, and investigations themselves can last for months.
There was nearly a four-month gap between Van Dyke's positioning and his arrest. For the other four accounts, and for all those with information asymmetry attempting insider trading in prediction markets, this arrest may be just the beginning.
