KEY POINTS
  • Federal authorities have launched a criminal investigation into a group that may include the former chief executive of Riot Blockchain, the cryptocurrency company that was the subject of a CNBC investigation last year, according to a recent court transcript.
  • The investigation is parallel to an SEC case that brought civil claims against, among others, John O’Rourke, former chief executive of Riot Blockchain, in alleged pump and dumps unrelated to Riot. No further details are known.
  • In September, the Securities and Exchange Commission says it charged a group that included O'Rourke and Barry Honig, who was once the largest shareholder of Riot, in a scheme the agency said generated more than $27 million from alleged unlawful stock sales.
  • The criminal case is being handled by the U.S. attorney's office out of San Francisco, according to the transcript of a May civil case court hearing obtained by CNBC.
John O'Rourke (right) former CEO of Riot Blockchain after a shareholders meeting in Oklahoma City on May 9, 2018.

Federal authorities have launched a criminal investigation into a group that appears to include the former chief executive of Riot Blockchain, the cryptocurrency company that was the subject of a CNBC investigation last year, according to court documents.

The investigation is parallel to a Securities and Exchange Commission case that brought claims against John O'Rourke, former CEO of Riot Blockchain, and others in alleged pump and dumps unrelated to Riot.