JRVR Shareholder Alert: Bronstein, Gewirtz Grossman, LLC Reminds James River Group Holdings, Ltd. Shareholders of Class Action and Encourages Shareholders to Contact the Firm NEW YORK--(BUSINESS WIRE)--Attorney Advertising-- Bronstein, Gewirtz Grossman, LLC notifies investors that a class action lawsuit has been filed against James River Group Holdings, Ltd. ("James River" or "the Company") (NASDAQ: JRVR) and certain of its officers, on behalf of shareholders who purchased or otherwise acquired James River securities between August 1, 2019 and May 5, 2021, both dates inclusive (the "Class Period"). Such investors are encouraged to join this case by visiting th