The cooperating witness has been helping authorities in hopes of recovering a monetary reward, according to court papers. While not named in court papers, the witness is Jason Thorell, a person familiar with the matter said.
Lumiere's lawyers say the details of the potential reward indicates he is seeking a recovery from the U.S. Securities and Exchange Commission, which can award whistleblowers up to 30 percent of any money it collects in a case.
The SEC declined comment. Thorell did not respond to a request for comment.
The case is U.S. v. Lumiere, U.S. District Court, Southern District of New York, No. 16-cr-00483.
This article was provided by Reuters.