 Los Angeles, California--Newsfile Corp. - August 23, 2021 - The Schall Law Firm, a national shareholder rights litigation firm, reminds investors of a class action lawsuit against James River Group Holdings, Ltd. James River or the Company NASDAQ: JRVR for violations of 10b and 20a of the Securities Exchange Act of 1934 and Rule 10b-5 promulgated thereunder by the U.S. Securities and Exchange Commission.Investors who purchased the Companys securities between August 1, 2019 and May... 