 NEW YORK--BUSINESS WIRE--Ambac Financial Group, Inc. NYSE: AMBC, a financial services holding company, today announced that it will release fourth quarter 2020 results on March 1, 2021 following the close of the market. Conference Call On March 2, 2021 at 8:30am ET, Claude LeBlanc, President and Chief Executive Officer, and David Trick, Executive Vice President and Chief Financial Officer, will discuss fourth quarter 2020 results and provide additional detail and updates on Ambacs three 