 NEW YORK--BUSINESS WIRE--Ambac Financial Group, Inc. NYSE: AMBC Ambac or AFG, a financial services holding company, today reported a net loss attributable to common stockholders of 29 million or 0.631 per diluted share and adjusted loss2 of 13 million or 0.30 per diluted share for the quarter ended June 30, 2021. This compares to net Income attributable to common stockholders of 17 million or 0.08 per diluted share and adjusted earnings of 41 million or 0.59 per diluted s 