Vast DOJ Probe Looks at Almost 30 Short-Selling Firms and Allies

The Justice Department is collecting a trove of information on dozens of investment firms and researchers engaged in short selling as part of a sweeping U.S. hunt for potential trading abuses, according to people with knowledge of the matter.

The Federal Bureau of Investigation seized computers from the home of prominent short seller Andrew Left, the founder of Citron Research, in early 2021, some of the people said. In more recent months, the Justice Department subpoenaed certain market participants seeking communications, calendars and other records relating to almost 30 investment and research firms, as well as three dozen individuals ...