DOJ ends investigation into stock sales of N.C. Sen. Richard Burr with no charges Insider trading investigation closed By Andrew Barnett | January 19, 2021 at 8:02 PM EST - Updated January 19 at 11:16 PM (WBTV) - The United States Department of Justice has ended its investigation into the stock trading of North Carolina Senator Richard Burr with no charges, as the case is now closed. The New York Times reported Tuesday that law enforcement officials told the senator they would not pursue charges “over his dumping of hundreds of thousands of dollars of stock after Senate coronavirus briefings early in the pandemic.” Sen. Burr issued a statement shortly after the story broke.