Michael Shawn Stewart is headed to federal prison for 24 years after a Denver jury found he helped orchestrate a massive foreign-exchange fraud that prosecutors say drained roughly $179 million from Coloradans and investors around the world.
The 63-year-old former trading firm executive was sentenced Thursday in federal court in Denver to 288 months behind bars and ordered to pay about $93.3 million in restitution. A jury had convicted him last year on multiple wire fraud counts tied to offshore trading outfits that lured clients with promises of sophisticated currency trading.
Prosecutors' Account Of The Fraud
Federal prosecutors say Stewart and co-defendant Bryant Edwin Sewall ran Mediatrix Capital and Blue Isle Markets as the public faces of what they pitched as an algorithmic foreign-exchange trading program. Investors were told the system had never lost money and that their funds were being handled with cutting-edge precision.
According to the U.S. Attorney’s Office for the District of Colorado, that sales pitch was a fiction. Prosecutors said Stewart and Sewall manipulated account statements to conceal trading losses, promised investors more than $179 million in returns, and left only about $9.8 million in client accounts when the music stopped.
The pair also pulled millions out of the operation in performance fees and broker markups, according to charging documents, and used investor money to pay for homes, boats, and luxury cars.
Sentence, Restitution And The Court Record
Authorities say Stewart was ordered to pay $93,273,838.16 in restitution on top of the 288-month prison term, a sentence that was made public by law enforcement at the time of judgment. Per FBI Denver, the punishment followed a May 2024 guilty verdict on 14 counts of wire fraud and one count of conspiracy.
The case file, reflected in U.S. District Court records, shows prosecutors flagging a long list of assets linked to the scheme for possible forfeiture. The docket and related filings trace how agents tracked down property that, in the government’s telling, was bought with investor cash.
Co-defendants And Seized Property
Stewart’s co-defendant, Bryant Sewall, received a nearly matching sentence. He was handed a 23-year federal prison term in November 2024 and ordered to repay roughly $93 million, according to the U.S. Attorney’s Office announcement after that hearing.
As reported by CBS Colorado, the government has moved to seize real estate, vehicles, a yacht, and other high-end items tied to the companies’ operations. A 2019 emergency action by the Securities and Exchange Commission froze company assets early in the investigation, and those civil and criminal tracks now run alongside each other as courts and regulators sort out who gets what.
What Victims Can Expect Next
For investors listed on the restitution schedules, any payday is likely to be slow and partial. Before money changes hands, judges must resolve third-party claims, finalize forfeiture orders, and oversee the sale of seized property.
The court record outlines a detailed ancillary process for deciding who owns which assets and how recovered funds will be distributed. The procedural history and list of claimed property appear in the district court filings. For media or victim inquiries, the U.S. Attorney’s Office in Denver remains the listed point of contact in its public release.
