A federal grand jury has formally charged Benjamin Paul Wiener, 43, with 29 counts linked to an alleged Ponzi scheme that reportedly defrauded investors of about $20 million, combining cash and digital assets.

Details of the Allegations

Wiener, residing in Sioux Falls, South Dakota, has been accused of misappropriating $5.7 million for personal gain while managing various entities known as the Benaiah entities, which operated under the guise of hedge fund-like investment opportunities focused on digital assets. The indictment details how the Benaiah entities raised approximately $25.1 million from investors, returning about $12 million as fabricated returns to maintain the illusion of the scheme.

In an additional twist, Wiener allegedly secured a $1 million bank line of credit in April 2025 using falsified documents, contributing to charges of aggravated identity theft alongside other financial fraud allegations. The criminal operation reportedly spanned multiple years, with evidence suggesting that funds from new investors were used to pay off older investors, a hallmark of classic Ponzi schemes.

Investigation and Legal Proceedings

By mid-2025, complaints from investors began to mount as liquidity issues became apparent. A receiver was appointed in August 2025 to investigate the Benaiah entities, uncovering the fraudulent nature of the operation. Multiple lawsuits have since been initiated by investors from South Dakota and Minnesota, all seeking restitution for their losses.

The federal case against Wiener involved the IRS Criminal Investigation division and the FBI, culminating in the 29-count indictment issued in June 2026. Each wire fraud count could carry a maximum sentence of 20 years, while the aggravated identity theft charge adds a mandatory consecutive two-year sentence. Wiener pleaded not guilty at his arraignment on July 10, 2026, and he is out on bond, with a trial scheduled for September 15, 2026.

This article is for informational purposes only and should not be considered financial advice.